Founding Full Stack Engineer at ProofofSkill · Remote only · 2 - 5 years · ₹4L - ₹7L / yr (ESOP available) · Raised funding · Remote only · Posted 3 Nov 2026

We’re reimagining how users interact with SaaS products and looking for a founding engineer to help build the first version from zero alongside a founder with experience building at HubSpot, Asana, and Datadog.
Role
We are hiring a Founding Engineer with strong frontend, product, and design instincts. You will work directly with the founder to shape the product, prototype quickly, make architecture decisions, think through user problems, and turn an early thesis into a working product.
The ideal person is a builder — someone who can move from an ambiguous idea to prototype, from prototype to usable product, and from usable product to scalable architecture. You should be excited by the opportunity to change how users interact with software and, eventually, the internet itself.
What You’ll Build
You will help build the first version of our core product, including:
- An SDK powered by frontier AI models and modern product experience protocols
- Backend services with rules, resolution logic and intent inference
- Early prototypes that help us test different wedges with customers
- Production-ready systems as the product direction becomes clearer
This role will likely span React, TypeScript, Next.js, backend APIs, databases, event tracking, and AI-assisted workflows.
Required Experience
- 2–5 years of software engineering experience, or equivalent demonstrated ability
- Strong frontend engineering experience with React and TypeScript
- Ability to design clean, scalable frontend component architecture
- Experience with backend APIs and databases
- Experience taking ambiguous product ideas and turning them into working software
Strong Plus
- Experience building 0-to-1 products
- Experience at an early-stage startup
- Experience building SaaS products
What Success Looks Like
In the first 30 days, you will:
- Understand our thesis, target customer, and product direction
- Help refine the first product wedge
- Build and iterate on early prototypes
- Set up core frontend and backend foundations
- Move quickly across product, design, and engineering decisions
In the first 60–90 days, you will:
- Ship the first usable product prototype
- Help build demo experiences that clearly communicate the product vision
- Create the first version of the adaptive frontend architecture
- Help test the product with early users, customers, or design partners
- Identify what should become production-grade versus what should remain experimental
Leadership Opportunity
This is a founding role with significant upside.
For the right person, strong performance can lead to a leadership position as the company grows. We are looking for someone who can become a long-term technical and product partner — someone who can help build the first version, shape the architecture, hire future engineers, and potentially lead major parts of the engineering organization.
This is an opportunity to join at the earliest stage and help define both the product and the company.
Why Join
- Build from zero with high ownership
- Work directly with the founder
- Help create a new category of software
- Own meaningful technical decisions from day one
- Opportunity to join the leadership team as the company scales

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Cognizant is one of the world's leading professional services companies, transforming clients' business, operating, and technology models for the digital era. Our unique industry-based, consultative approach helps clients envision, build, and run more innovative and efficient businesses. Headquartered in the U.S., Cognizant (a member of the NASDAQ-100 and one of Forbes World's Best Employers 2025) is consistently listed among the most admired companies in the world.
This role is part of Cognizant IOA (Intuitive Operations and Automation) — and more specifically, a product team with its own origin story. We started as Matterway, a German startup building automation software from scratch. We were acquired by Cognizant, but we kept our team, our culture, our pace, and our way of working. We move like a startup, think like a startup, and now do it with the backing of a global company.
We combine human expertise with intelligent automation, ML operations, and digital experience solutions to help technology and digital-native companies build smarter, more adaptive operating models.
What's the opportunity?
We are looking for Senior Product Engineers to join our team. We're a tight crew of 5 senior engineers, from different corners of the world. We're hiring 3 more people, and those people will shape what this team becomes.
We're building a platform to support the agentification of our operations. You'll work across a suite of products including a cloud platform for process optimization, desktop application, browser extension, and specialized AI agents.
This is genuinely frontier work: we don't follow AI trends, we implement them. New model drops on a Monday; we've prototyped with it by Wednesday.
We believe this is the most exciting time to join. Be part of the founding R&D talent in this area and help set the technical bar for everything that comes next.
What will you be doing?
Your day-to-day responsibilities:
- Design and evolve the core architecture of our platform
- Set technical standards and take ownership of complex projects end-to-end
- Work on a well-architected, fast-evolving TypeScript codebase using technologies such as React, Node.js, Electron, and GraphQL
- Collaborate with product managers, designers, and engineers to solve challenging technical and business problems, with real autonomy
- Participate in the full development lifecycle: scoping, design, estimation, coding, testing, debugging, code reviews, maintenance, and support
- Evaluate and implement proofs of concept using the latest AI tools and models
You will know you're successful if:
- You develop projects independently until they deliver their intended business value
- You keep top-notch software quality standards about design, implementation, and documentation
- You're the person who brings something new to the team's radar, a model, a technique, a tool, before anyone else has heard of it
What makes you a great fit
Must-haves:
- Excellent English (C1+) with exceptional written and verbal communication
- Strong proficiency with TypeScript across frontend and backend, including building and maintaining Node.js-based services
- Experience in frontend development using modern frameworks such as Vue.js or React
- Knowledge of any E2E testing framework such as Playwright, Puppeteer, Selenium, Cypress
- Ability to work independently and take ownership of deliverables
- Strong technical fundamentals, genuine intellectual curiosity, and a drive to keep getting better
- You follow AI closely, not just as a user but as someone who reads the papers, watches the releases, and has opinions. You're excited about where this is going and want to be building at the edge of it
Nice-to-haves:
- Familiarity with AI-coding tooling (Claude Code, Cursor, OpenCode, etc.)
- Experience with cloud infrastructure (AWS, Azure or GCP) and infra-as-code deployment
- Having built or maintained CI/CD pipelines or workflows, especially GitHub actions
Why join us?
- Be at the cutting edge of AI agents and applying LLMs to real-world use cases, not in theory but in production
- Work on hard problems with high agency: your ideas get heard; your decisions get shipped
- Join a small but growing internationally distributed team.
- giving you real influence over how it evolves
- The resources of a global company with the speed and culture of a startup
- Remote-first set-up, with the option to work from one of our 13 locations in India: Chennai, Bangalore, Hyderabad, Pune, Mumbai, Gurgaon, Noida, Kolkata, Kochi, Coimbatore, Bhubaneswar, Mangalore, and Indore
- Flexible working hours
- Collaborative, pragmatic engineering culture focused on outcomes
- Fast-growing team within Cognizant, with access to global resources and real career opportunities
Full-Stack Engineer (AI-Native) | 2-4 Years Experience
About the Role
We're hiring a Full-Stack Engineer who is equally comfortable building a polished Next.js interface and a reliable NestJS API behind it. You'll build customer-facing products, including AI-powered features like chat interfaces, streaming responses, and agent-driven workflows. You'll own features end to end, from database schema to UI, and use AI tools daily to ship faster without lowering the quality bar.
What You'll Do
Frontend
- Build responsive, accessible, high-performance UIs with React, Next.js (App Router, RSC) and TypeScript
- Build AI-facing interfaces: streaming chat UIs, tool-call/agent-status displays, and loading, error, and retry states for non-deterministic outputs
- Monitor web vitals and fix performance regressions
Backend
- Design and build scalable REST/GraphQL APIs and services with Node.js and NestJS
- Model, query, and optimize data in PostgreSQL (schema design, indexing, migrations) using an ORM like Prisma or Drizzle
- Implement auth, authorization, validation, background jobs, queues, and caching (Redis)
- Integrate LLM APIs (OpenAI, Anthropic, Gemini), including streaming (SSE/WebSockets), tool calling, retries, rate limits, and cost/latency control
AI-Assisted Engineering
- Use AI coding tools (Cursor, Claude Code, Copilot, etc.) for scaffolding, refactoring, debugging, and test writing
- Write and maintain project context for AI tools (rules files, AGENTS.md/CLAUDE.md, reusable prompts) so the whole team gets better output
- Review AI-generated code critically for correctness, security, performance, and maintainability
Team and Delivery
- Write unit, integration, and E2E tests, using AI to speed them up rather than skip them
- Take part in code reviews, sprint planning, architecture discussions, and on-call/incident follow-ups
- Document APIs, decisions, and runbooks clearly
Must-Have (Non-Negotiable)
Frontend
- Strong JavaScript (ES6+) and TypeScript
- React (hooks, state management, rendering behavior) and Next.js (App Router, SSR/SSG/RSC)
- HTML/CSS fundamentals, Tailwind or similar, responsive design, and accessibility basics
Backend
- Production experience with Node.js and a structured framework (NestJS preferred; Express/Fastify with good architecture is fine)
- Solid PostgreSQL skills: relational modeling, joins, indexes, transactions, query optimization
- API design: REST principles, pagination, versioning, error handling, input validation
- Authentication and authorization (JWT, OAuth2, sessions, RBAC)
Engineering Fundamentals
- Git, PR workflows, and code review habits
- Testing across layers (Jest/Vitest, React Testing Library, API/integration tests; Playwright/Cypress is a plus)
- Basic security awareness (OWASP top 10, secrets management, input sanitization)
AI-Assisted Development
- Daily, hands-on use of at least one AI coding tool (Cursor, Claude Code, Copilot, Windsurf, or similar)
- Ability to write clear prompts, give useful context, and break big tasks into steps an AI can handle
- Habit of reviewing, testing, and understanding AI output before committing it
- Basic understanding of how LLMs work: context windows, hallucinations, token cost, and why outputs vary
Nice to Have
- Redis, message queues (BullMQ, SQS, Kafka), or event-driven architecture
- Monorepo tooling (Turborepo, pnpm workspaces, Nx)
- Design system or component library work (shadcn/ui, Radix, Storybook)
- tRPC, GraphQL, or OpenAPI-driven type-safe clients
- Multi-tenant SaaS, payments (Stripe/Razorpay), or real-time features
- Open-source contributions, a side project, or shipped AI features you can demo
What We Expect From You
- Ownership: take a feature from schema to UI to production, and flag risks early
- Judgment over speed: AI makes you faster, and you're still accountable for every line you ship
- Security awareness: no secrets in prompts, no blind copy-paste of AI code, and sensitive data stays out of third-party tools
- Systems thinking: consider scale, failure modes, and cost, not just the happy path
- Learning speed: the AI tooling landscape changes every few months, and you keep up and share what works
- Clear communication: PRs, docs, and async updates that others can follow
If interested for this job pls contact us on this WhatsApp number, nine three one six one two zero one three two
About the Role:
We are looking for a Senior Frontend Engineer with strong experience in React and Next.js to join our growing engineering team in Bengaluru.
You will be responsible for designing, developing and maintaining modern, scalable web applications. You will work closely with backend engineers, product stakeholders and engineering leadership to build high-quality user experiences.
This is a hands-on engineering role offering significant ownership, technical challenges and the opportunity to influence architecture and engineering practices in a growing product-focused organisation.
Key Responsibilities:
- Design, develop and maintain scalable web applications using React and Next.js.
- Build responsive, reusable and high-performance user interfaces.
- Translate product requirements and designs into robust technical implementations.
- Develop reusable component libraries and frontend architecture.
- Integrate frontend applications with REST APIs and backend services.
- Implement effective state management and data-fetching strategies.
- Optimise application performance, accessibility and SEO.
- Ensure cross-browser compatibility and responsive design.
- Write clean, maintainable and testable code.
- Participate in code reviews and contribute to engineering best practices.
- Collaborate with cross-functional teams to deliver features from concept to production.
- Take ownership of technical decisions and proactively identify opportunities for improvement.
Required Skills & Experience:
- 4 - 6 years of professional frontend development experience.
- Strong hands-on experience with React.js.
- Experience building production applications using Next.js.
- Proficiency in JavaScript and TypeScript.
- Strong understanding of HTML5, CSS3 and responsive design.
- Experience integrating REST APIs and working with asynchronous data.
- Good understanding of frontend architecture and state management.
- Experience with Git and modern development workflows.
- Familiarity with frontend testing frameworks such as Jest, React Testing Library or Playwright.
- Understanding of web performance optimisation and browser fundamentals.
Good to Have:
- Working knowledge of Node.js and backend development fundamentals.
- Familiarity with PostgreSQL, relational database concepts and SQL.
- Experience building SaaS or enterprise-grade applications.
- Understanding of server-side rendering (SSR), static site generation (SSG) and SEO.
- Experience with Tailwind CSS or similar styling frameworks.
- Familiarity with cloud platforms such as AWS.
- Experience with real-time applications and WebSockets.
- Exposure to AI-powered applications and LLM integrations.
- Experience working in agile, product-focused engineering teams.
What We're Looking For:
- Strong problem-solving and analytical skills.
- Ability to work independently and take end-to-end ownership.
- Good understanding of software engineering fundamentals.
- Attention to code quality, performance and maintainability.
- Comfortable working in a fast-paced environment with evolving requirements.
- Strong communication and collaboration skills.
- A proactive mindset and willingness to contribute beyond assigned tasks.
What We Offer:
- Opportunity to work on modern, scalable technology products.
- Exposure to diverse engineering challenges and emerging technologies.
- A small, collaborative engineering team with high ownership.
- Direct collaboration with engineering leadership and product stakeholders.
- Opportunity to influence technical decisions and engineering practices.
Founding Full-Stack Engineer / Technical Lead — X.re
We are building X.re — an AI-first CRM built specifically for real estate companies.
X.re is not another generic CRM. It is being designed around the real estate sales funnel, with AI-powered WhatsApp conversations, AI voice, lead scoring, workflow automation and advertising intelligence built into the system.
The product is already being built and is currently being tested with a real estate pilot client.
We are now looking for a senior engineer who can take ownership of the existing codebase and help take it from AI-assisted development into a robust, production-ready SaaS product.
What you'll be doing
- Take ownership of an existing Next.js + TypeScript codebase.
- Understand the existing architecture, database structure, APIs and application flows.
- Conduct a thorough engineering review and identify production, security, scalability and reliability risks.
- Refactor and improve the code where required rather than blindly rewriting the system.
- Build and maintain production-quality frontend and backend features.
- Design and maintain APIs, database models and integrations.
- Work on a multi-tenant SaaS architecture where each real estate brand has its own workspace and data isolation.
- Work closely with AI/LLM-powered features including chat, voice and lead intelligence.
- Work on WhatsApp Business API integrations, webhooks and messaging infrastructure.
- Build reliable automation and workflow functionality.
- Implement proper authentication, authorization, data isolation, logging, monitoring and error handling.
- Help establish engineering standards, testing and deployment practices.
- Eventually build and lead the engineering team as X.re scales.
What we're looking for
We are looking for someone who has strong engineering judgment, not someone who simply knows a list of technologies.
You should be able to:
- Enter an unfamiliar codebase and understand it quickly.
- Identify what is well designed and what is technically risky.
- Take an MVP and turn it into production-grade software.
- Make pragmatic architectural decisions.
- Think about security, scalability, reliability and maintainability.
- Work independently and take ownership.
- Read and review code generated or assisted by AI.
- Know when AI-generated code is acceptable and when it needs to be redesigned.
- Build rather than just manage developers.
Technical requirements
Strong experience with:
- TypeScript
- Next.js / React
- Node.js
- REST APIs
- PostgreSQL / SQL
- Modern SaaS application architecture
- Cloud deployment
- Git and production development workflows
Experience with the following is a strong advantage:
- AI/LLM applications
- WhatsApp Business API
- Webhooks
- Multi-tenant SaaS
- API integrations
- Docker
- AWS or similar cloud platforms
- CI/CD
- Observability and production monitoring
One important thing
This is not a greenfield project.
The existing product has been built significantly with AI-assisted development.
We are specifically looking for an engineer who is comfortable inheriting an existing codebase, understanding it deeply, challenging its assumptions, fixing what needs fixing, and taking responsibility for making it production-ready.
You will not be expected to rewrite everything just because it wasn't originally written by you.
Why this role is different
You won't just be implementing tickets.
You'll have significant influence over:
- Engineering architecture
- Production readiness
- Technical standards
- Infrastructure
- AI integration strategy
- Product engineering decisions
- Future engineering team structure
If things go well, this role can grow into Head of Engineering / CTO-level ownership as X.re scales.
Location
Hyderabad preferred. Remote candidates across India may be considered for the right candidate.
Compensation
₹20–35 LPA + ESOP
Compensation will depend on experience and level of ownership.
ABOUT
The Persona Labs is building a new kind of social platform focused on something most social products do not explicitly optimize for: helping people become real friends.
We want to help people discover interesting people around them, find meaningful common ground, start low-pressure interactions, continue promising conversations, create shared experiences, and ultimately build real-life friendships.
DISCOVER → CURIOSITY → COMPATIBILITY → INTERACTION → UNDERSTAND → IRL EXPERIENCE → FRIENDSHIP
THE AI LAYER
Alongside the platform, we are building a proactive personal companion that learns about the user and helps them navigate this journey through personalized recommendations, suggestions, reminders and experiences.
THE OPPORTUNITY
We are looking for a Founding Product Engineer to help build the platform from the ground up. This is a 0→1 product engineering role where you work directly with the founder and engineering team to turn ambiguous product problems into working software.
You will be expected to:
Understand the problem → explore solutions → make trade-offs → design → build → ship → measure → improve.
WHAT YOU WILL BUILD & OWN
MOBILE
Onboarding, profiles, discovery, interactions, messaging, activities, and companion experiences.
SOCIAL SYSTEMS
Relationships, social graph, compatibility, and interaction flows.
BACKEND
APIs, services, authentication, notifications, and background processes.
DATA
PostgreSQL models, user/activity data, analytics, and behavioural signals.
REAL-TIME
Messaging, live interactions, notifications, and event-driven workflows.
AI-ENABLED
Recommendations, personalization, and companion-powered experiences.
INFRASTRUCTURE
Cloud deployment, CI/CD, monitoring, reliability, and cost management.
WHAT YOUR DAY-TO-DAY LOOKS LIKE
• Build and ship mobile and full-stack product features end-to-end.
• Design APIs, database models, and backend services for a social product.
• Translate ambiguous product problems into simple, reliable technical solutions.
• Make architecture and engineering trade-offs for performance, scalability, security, and cost.
• Work closely with the founder, product/design team, and Companion Intelligence engineer.
• Prototype quickly, test assumptions, and iterate based on user behaviour and product feedback.
• Own features from problem → architecture → implementation → deployment → improvement.
• Help establish engineering practices around testing, monitoring, security, and reliability.
WHO SHOULD APPLY
• Experience: 0–4 years, including exceptional fresh graduates. Strong 1–3 year engineers and experienced 3–4 year product builders are welcome.
• Fundamentals: Strong CS/software engineering fundamentals.
• Evidence of Building: We value what you have built more than the number of years on your résumé. Shipped apps, strong side projects, hackathons, internships, open source, or startup work are highly valued.
• Mindset: High ownership, curiosity, strong fundamentals, clear communication, learning velocity, and the ability to work through ambiguity.
WHAT WE LOOK FOR
MOBILE CAPABILITY
Can you build and ship a polished mobile experience?
ENGINEERING DEPTH
Do you understand why a system works, not just how to make it run?
PRODUCT JUDGMENT
Can you determine what should be built when the problem is ambiguous?
ARCHITECTURE / SYSTEMS
Can you reason across APIs, databases, services, real-time systems, scale, and cost?
SPEED OF EXECUTION
Can you move from idea → prototype → production quickly without compromising fundamentals?
AI FAMILIARITY
Do you understand how modern AI can become a useful, reliable product capability?
BUILD WITH US
You will join at a stage where many answers do not exist yet. You will not simply implement someone else’s architecture, you will help decide what the architecture and product should become.
CAREERS:
Apply with your resume, GitHub, portfolio or shipped work.
https://forms.gle/12YpUSBY2Sqs5xjp8
www.thepersonalabs.com
About Vijay Sales
Vijay Sales is a consumer electronics and appliances retailer, selling through its stores across India, its website and its app.
Our technology team builds the software the business runs on: order management, customer support automation over WhatsApp, reviews and ratings, and the dashboards our operations teams use every day.
The role
We are hiring full stack engineers who can take a feature from spec to production across React, Node.js and MongoDB.
You will work on customer-facing and internal products, often both in the same week. One sprint may be a review submission page used by customers on their phones. The next may be an API that pulls order status from our order management system for the support bot.
We are looking for engineers with 3 to 6 years of experience who are comfortable owning both the front end and the back end of what they ship.
What you'll do
- Build responsive, mobile-first interfaces in React using our in-house UI component libraries.
- Design and build REST APIs and background services in Node.js.
- Model data in MongoDB and keep queries fast as collections grow.
- Integrate with the systems the business runs on: order management, ERP, point of sale and ticketing.
- Build messaging flows over WhatsApp, email and SMS, including delivery tracking, retries and fallbacks.
- Work with the conversational AI team to expose order, invoice and support actions to the customer support bot.
- Write tests, review code and own your features in production, including monitoring and fixing what breaks.
- Work directly with product and operations teams to turn a business problem into a working release.
Our stack
React, Node.js and MongoDB are the core. Everything else in the table is what you will connect to or build alongside.
- Front end: React, with Vijay Sales' in-house UI component libraries
- Back end: Node.js services and REST APIs
- Database: MongoDB
- Messaging: WhatsApp Business, Amazon SES for email, RCS and SMS as fallback
- Conversational AI: LangChain and Rasa, behind the customer support bot
- Business systems: Order management (OMS), ERP, POS, Ticketing Systems
What we're looking for
- 3 to 6 years of professional experience building and shipping web applications.
- Strong JavaScript and TypeScript fundamentals: async patterns, the event loop, modules, error handling.
- Solid React skills: hooks, state management, component design, performance on low-end mobile devices.
- Hands-on Node.js experience: building REST APIs, authentication with JWT, role-based access, input validation.
- Working knowledge of MongoDB: schema design, indexing, aggregation pipelines.
- Experience integrating third-party APIs and webhooks, and handling their failures gracefully.
- Comfort with Git, code review, automated tests and CI/CD.
- Clear written and spoken communication. You will talk to operations and business teams, not only engineers.
Nice to have
- Experience with the WhatsApp Business API, Gupshup or similar messaging platforms.
- Exposure to LLM application development: LangChain, retrieval, tool calling, or bot frameworks such as Rasa.
- Background in retail, e-commerce or order management systems.
- Experience integrating with ERP or POS systems.
- Familiarity with AWS, Redis and message queues.
- React Native or other mobile app experience.
Why join and how to apply
- Your work reaches real customers and store teams quickly. There is very little distance between a release and the people who use it.
- You own features end to end, from the first conversation with the business team to production.
- You get hands-on exposure to conversational AI and LLM-based products alongside core full stack work.
About GeoIQ:
GeoIQ(a Lenskart subsidiary) is a location intelligence platform that provides comprehensive data and insights to help businesses make informed decisions about their retail operations and expansion. It offers a range of data points, including demographic information, commercial activity, and market performance indicators, to give users a detailed understanding of a specific location or market.
About the team:
Our agile team, consisting of 40+ members, is led by a founding team with extensive experience in data analytics, machine learning, and product development. Embrace the opportunity to collaborate with seasoned professionals in a dynamic and innovative work environment.
Responsibilities:
- Develop and maintain GeoIQ's products primarily using React, Redux, and NextJS.
- Ship simple, approachable, performant, and testable code.
- Enhance user experience by creating intuitive UIs that enable data visualization and discovery. Dive into legacy code to understand and improve current products.
- Facilitate and make informed technical decisions that drive the long-term vision for GeoIQ.
- Build workflow tools that allow users to explore GeoIQ's data repository, visualize spatial data, and create no-code AI models.
- Solve complex architecture problems in an extensible and maintainable way.
- Bring clarity to complex technical problems across the organization.
- Participate in the design process by listening to users, attending design critiques, and providing guidance and feedback informed by a deep understanding of technical constraints.
- Collaborate with team members to achieve clean and efficient code.
Requirements:
● Fluent and proficient in React with a minimum of 2 years of experience.
● Previous experience working with geo-spatial data.
Why Explore a Career at GeoIQ:
- Be part of a team that is revolutionizing decision-making for businesses across India.
- Work in a dynamic and innovative environment with ample opportunities for professional growth and learning.
- Contribute to the growth and success of a leading hyperlocal location AI startup in India.
If you are passionate about creating intuitive and efficient front-end solutions and meet the requirements listed above, we would love to hear from you. Apply now to join our team at GeoIQ!
About the role
You'll lead our Next.js frontend team. You'll own frontend architecture and guide a team of developers. You'll work closely with the Backend team to make sure integrations are well designed and delivered independently.
What you'll do
- Own frontend architecture, standards and technical decisions for our Next.js applications.
- Build scalable, performant and accessible web features.
- Work with the Backend team on API design, data flows and system requirements.
- Lead code reviews, mentor the frontend team, and assign and guide technical work with the TPM.
- Drive improvements in performance, SEO, Core Web Vitals and developer experience.
- Work with Design to turn designs into polished, responsive interfaces.
- Take part in the senior on-call rotation, including international paging.
What we're looking for
- 6+ years of frontend development, with 3+ years of hands-on Next.js work.
- Expert knowledge of React, TypeScript and modern Next.js (App Router, server components, SSR/SSG/ISR).
- Strong grasp of frontend architecture, state management, caching and performance optimisation.
- Solid experience integrating REST/GraphQL APIs and handling authentication.
- Experience leading or mentoring frontend developers.
- Excellent communication skills. You should be able to work through API contracts and requirements clearly with backend and mobile teams.
- Experience working with AI tools for development, and a willingness to integrate AI into the SDLC
Note: Full-stack experience is a strong plus but not mandatory. A strong frontend specialist who works effectively with the Backend team is a great fit.
Nice to have
- Backend experience with Django.
- Experience with Vercel, CI/CD and frontend testing (for example Playwright or Jest).
- Familiarity with React Native.
- Familiarity with US front-end compliance requirements, such as WCAG2.2
About Byldd:
Byldd is a Startup Studio that helps founders launch and scale software companies. We work closely with founders to refine ideas, identify core pain points, build scalable software products, acquire initial customers, and support growth.
At Byldd, engineers get the opportunity to work on diverse and challenging projects across industries like fintech, healthcare, AI, operations, and enterprise software. Since we work with multiple startups at different stages, the problems are rarely repetitive — one week you may be building an AI-assisted workflow tool, and the next you may be architecting a scalable SaaS platform.
Our engineering culture is strongly focused on ownership, fast execution, and leveraging modern development workflows — including AI-assisted development using tools like Claude Code, Cursor, ChatGPT, GitHub Copilot, and other AI tooling to improve speed, quality, and problem-solving.
We primarily work with technologies such as React/Next.js, Node.js, TypeScript, MongoDB, and modern cloud infrastructure.
About the role:
We’re looking for experienced Full-Stack Engineers with a strong backend inclination to join us on core business projects.
Your role will involve understanding business requirements, product flows, and mockups. We’ll provide the “what” and the “why” behind the product decisions, and you’ll take ownership of translating them into scalable technical solutions.
While this is a full-stack role, the expectation is backend-heavy ownership — including system design, APIs, database architecture, integrations, scalability, and performance optimization. You’ll collaborate with founders and senior engineers to architect and build products end-to-end.
Since we move fast, we highly value engineers who can independently figure things out, use AI effectively in their workflows, and ship high-quality products with speed.
This role is ideal for someone who enjoys combining strong backend engineering fundamentals with modern AI-assisted development practices.
What You’ll Do
- Build and ship scalable full-stack applications from scratch
- Design and develop robust backend systems, APIs, and database architectures
- Work closely with founders, designers, and product teams
- Architect systems with scalability, maintainability, and performance in mind
- Use AI-assisted development tools (Claude Code, Cursor, ChatGPT, Copilot, etc.) to improve development speed and productivity
- Review, debug, and optimize production systems
- Think through edge cases, reliability, and long-term scalability
Who you are:
- You have 2+ years of non-internship experience as a full-stack developer with strong backend expertise
- You enjoy building products from 0 → 1
- You think beyond tasks and understand business objectives
- You are comfortable taking ownership and contribute towards making technical decisions
- You actively use or are excited to use AI tools in your engineering workflow
- You are strong in problem-solving and figuring things out independently
- You care deeply about writing clean, maintainable, scalable code
- You enjoy working in fast-paced startup environments
- You’re comfortable contributing across the stack while being particularly strong on the backend side
Preferred Tech Stack
(Experience in some or most of the following is preferred)
- Node.js
- TypeScript
- MongoDB
- Express.js
- React / Next.js
- REST APIs
- Cloud deployment & modern dev tooling
Experience with AI-assisted coding tools and workflows is a strong plus.
Location: Remote
NAO is building a B2B operational intelligence platform focused on strategic materials and critical components.
We are looking for a Senior Full-Stack Engineer to help turn an already-defined product concept and workflow into a working, customer-demonstrable MVP within 3 weeks.
This is not a website project. We need someone who can move quickly, make sound technical decisions, and build a reliable product demo.
Core Deliverables
- Working web-based MVP
- Frontend dashboard
- Backend + database
- Strategic materials & critical components data layer
- Operational exposure and impact workflow
- API / AI integrations where needed
- Deployment and handoff
Please apply only if you have experience building B2B SaaS or data-heavy products and availability to start immediately / within 7 days.














