Senior Frontend Developer (Next JS ReactJS, Vue.js)

Key Responsibilities

• Build and ship features across the frontend and backend.

• Design and implement RESTful APIs with appropriate validation and error handling.

• Write clean, maintainable, well-tested code.

• Participate in code reviews and collaborate with the engineering team.

• Use AWS services such as S3 and Lambda for file storage, serverless functions, and scheduled tasks.

• Debug production issues using Sentry and New Relic.

• Contribute to CI/CD pipelines and deployment processes

Must-Have Skills

• Strong proficiency in Go (Golang).

• Hands-on experience with Next.js and TypeScript.

• Solid understanding of PostgreSQL, including queries, schema design, and migrations.

• Experience designing and implementing REST APIs.

• Familiarity with Git and collaborative workflows, including pull requests, code reviews, and branching.

• Strong problem-solving skills and the ability to debug independently.

Good to Have

• Experience with AWS services such as S3, Lambda, EC2, and CloudWatch.

• Experience with Docker and containerized deployments.

• Familiarity with CI/CD using GitHub Actions.

• Understanding of cron jobs and background task processing.

• Experience working in a small, fast-moving team. 

Job Description

This is a remote position.

Experience Level

This role is ideal for engineers with 4-9 years of hands-on software development experience, particularly in ReactJS, Node, and TypeScript.

Role Overview

If you're a Software Craftsperson who takes pride in clean, test-driven code and believes in Extreme Programming principles, we'd love to meet you. At Incubyte, we're a DevOps organization where developers own the entire release cycle, meaning you'll get hands-on experience across programming, cloud infrastructure, client communication, and everything in between. Ready to level up your craft and join a team that's as quality-obsessed as you are? Read on!

What You'll Do

• Write Tests First: Start by writing tests to ensure code quality
• Clean Code: Produce self-explanatory, clean code with predictable results
• Frequent Releases: Make frequent, small releases
• Pair Programming: Work in pairs for better results
• Peer Reviews: Conduct peer code reviews for continuous improvement
• Product Team: Collaborate in a product team to build and rapidly roll out new features and fixes
• Full Stack Ownership: Handle everything from the front end to the back end, including infrastructure and DevOps pipelines
• Never Stop Learning: Commit to continuous learning and improvement

Requirements

• 4+ years of experience in ReactJS, Node, TypeScript, LLMs and PostgreSQL
• Comfortable working with Claude or other AI-powered tools
• Prior experience with Chrome extensions is preferred
• Good to have - Next.js, HTML, CSS, DOM APIs
• Strong problem-solving attitude and a bias for action
• Experience with browser testing frameworks, ex. Puppeteer, Playwright, etc.
• Deep understanding of DOM manipulation, browser APIs and web standards
• Asynchronous programming (Promises, async/await)
• Strong debugging skills (Browser devtools/JavaScript)
• Knowledge of web security concepts and cross-origin restrictions
• Familiarity with Agile and eXtreme Programming methodologies in a continuous deployment environment
• Interest in mastering technologies like web frameworks, TDD, CI tools, and performance optimization
• Working knowledge of source control, writing user stories, and technical documentation

THIS ROLE IS MUMBAI-BASED MANDATORY

About Ungrammary

Ungrammary is an independent UX/UI design and digital product design studio partnering with ambitious businesses to build meaningful digital experiences. We work with teams across industries including fintech, SaaS, ecommerce and consumer brands, helping turn complex business problems into clear, useful and engaging products. Our work spans strategy, product thinking, UX, interface design and design systems. As a remote-first team collaborating with clients across geographies, we value thoughtful communication, ownership and a high standard of craft.

The role

We’re looking for a Full Stack Developer who can translate product and design requirements into reliable, production-ready web applications. You’ll work closely with our designers, project stakeholders and client teams to build features across the stack, make sound technical decisions, and take ownership from development through deployment. The role calls for someone who is comfortable working in a design-led, client-service environment where quality, timelines and clear communication matter.

Responsibilities

• Build, test and ship end-to-end web application features using MongoDB, Express.js, React and Node.js.

• Translate Figma designs and product requirements into responsive, accessible and maintainable front-end experiences.

• Develop and maintain RESTful APIs, including authentication, authorization, validation and error handling.

• Create reusable React components and manage application state using suitable patterns and libraries.

• Design MongoDB schemas; write efficient queries and aggregations; and consider indexing and performance.

• Integrate third-party services such as payment gateways, email/SMS providers, maps, cloud storage and OAuth.

• Collaborate with UX/UI designers, project managers, QA and other developers to clarify requirements and plan implementation.

• Estimate tasks, communicate progress and risks, and take responsibility for agreed deliverables.

• Write clean, testable code; participate in code reviews; and document important technical decisions.

• Troubleshoot production issues and improve application performance, security and reliability.

• Support deployment and maintenance, including environment configuration, hosting, monitoring and CI/CD workflows.

• Communicate clearly with internal stakeholders and, when required, international clients.

Required skills

• 2+ years of professional experience building and shipping full-stack MERN applications.

• Strong JavaScript (ES6+) fundamentals and working knowledge of TypeScript.

• React.js: hooks, component architecture, routing, forms, state management and performance fundamentals.

• Node.js and Express.js: API development, middleware, authentication, file handling and error management.

• MongoDB with Mongoose: schema design, aggregation pipelines, query optimization and indexing.

• Strong HTML5 and CSS3 skills, with experience using a framework such as Tailwind CSS, Material UI or Bootstrap.

• Ability to accurately translate responsive Figma designs into working interfaces.

• Git and GitHub workflows, including branching, pull requests and resolving merge conflicts.

• Experience using Postman or similar tools and working with API documentation.

• Familiarity with deployment fundamentals, Linux environments and production configuration.

• Good written and spoken English, with the ability to explain technical concepts clearly.

• A responsible, detail-oriented approach and the ability to manage work independently in a remote team.

Good to have

• Next.js, including server-side rendering and static generation.

• Experience with PostgreSQL or MySQL in addition to MongoDB.

• NestJS, Fastify, Prisma or other modern backend frameworks and tools.

• Cloud deployment experience on AWS, Azure, Google Cloud or comparable platforms.

• Docker and CI/CD tools such as GitHub Actions.

• Real-time application development using Socket.io or WebSockets.

• Unit and integration testing with Jest, React Testing Library or Supertest.

• Experience integrating platforms such as Stripe, Razorpay or Shopify.

• Performance optimization, accessibility and web security fundamentals.

• Productive use of AI-assisted development tools such as Claude, GitHub Copilot or Cursor.

What you can expect at Ungrammary

• Work on meaningful digital products and platforms across fintech, SaaS, ecommerce and consumer-facing businesses.

• Collaborate closely with experienced UX/UI designers and contribute to the quality of the final product—not just the code.

• Take ownership of features across the stack, from understanding requirements to implementation and release.

• Work in a remote-first environment that values autonomy, thoughtful collaboration and clear communication.

• Exposure to varied product challenges, technologies and client contexts.

• Opportunities to strengthen technical depth, product thinking and end-to-end delivery skills.

Senior Full Stack Developer – Node.js + React.js

Brahmveda Ventures Private Limited is an AI-focused venture studio that builds and launches technology products from the ground up. We work across different ventures, solving real business problems through technology, AI, and product innovation.

Experience: 7+ Years

Location: Piplod, Surat | Work Mode: On-site

We are looking for a Senior Full Stack Developer who can take ownership of building scalable products and solve complex technical problems end-to-end.

Your Role

We are looking for a Senior Full Stack Developer who can take ownership of building scalable products and drive technical initiatives from idea to production.

• Build and ship scalable applications using Node.js, React.js, and TypeScript.
• Design system architecture, technical solutions, and efficient database structures.
• Build and manage queues, workers, and long-running background jobs.
• Use AI agents and AI coding tools hands-on to improve development and solve engineering problems.
• Take ownership of technical initiatives and deliver features from idea to production.
• Collaborate with the team to improve performance, reliability, and engineering practices.

What We're Looking For

• 7+ years of strong hands-on Full Stack Development experience.
• Strong knowledge of Node.js, React.js, TypeScript, and databases.
• Strong understanding of system design, architecture, and database design.
• Experience with queues, background jobs, and asynchronous processing.
• Hands-on experience with AI agents / agentic software engineering is a key requirement.
• Strong problem-solving and decision-making skills.
• A strong ownership and product mindset with the ability to independently drive work and get things shipped.

Roles and Responsibilities

• Build features across the stack — Implement product features that span the React frontend, the GraphQL federation, the Node.js microservices, and the underlying Postgres and ClickHouse stores.
• GraphQL federation work — Add types, resolvers, and subgraph capabilities to the federated Platform API. Keep subgraph boundaries clean. Respect RBAC enforcement at the federation layer.
• Developer experience surfaces — Lift NPS through intuitive UI/UX, fast onboarding, in-browser testing, clear error states, code-snippet generation, and fast time-to-first-successful-call.
• Billing and commerce features — Ship subscription, plan, invoice, payout, and overage features that touch Stripe / PayPal webhooks, the billing state machine, and the usage ledger.
• API catalog and discovery — Improve marketplace search and the API listing experience, including the ranking signals that flow in from the analytics and search stack.
• Observability and quality — Instrument every feature you ship — logs, traces, and metrics are part of the definition of done, not a follow-up ticket. Write the alerts that page you, not someone else.
• Testing discipline — Own unit and integration tests for everything you ship; contribute to the end-to-end and contract test suites that protect the federation and the billing path. A feature without tests is not done.
• On-call and incident response — Take part in on-call rotations; investigate proxy errors, GraphQL federation timeouts, and billing webhook anomalies. You build it, you run it.
• LLM-assisted engineering — Use LLM-based coding and agentic tooling to evolve how features are shipped, reviewed, and tested.

What Success Looks Like

•  Features you ship measurably improve activation, time-to-first-successful-call, and developer NPS quarter over quarter.
• The GraphQL federation surface you touch stays fast, well-typed, and intuitive for the next engineer.
• Billing, subscription, and overage flows you build are accurate, auditable, and replayable — providers and consumers trust the numbers.
• ou ship at a confident cadence — PRs land daily, deploys are routine and boring, regressions are rare.
• You leave the code, the docs, and the tests in better shape than you found them.

What You Bring

• 4–7 years of full-stack product engineering experience, with non-trivial work on production systems used by real customers.
• Strong TypeScript/Node.js; comfort writing both frontend (React) and backend services.
• Hands-on GraphQL experience — ideally federation (Apollo Federation / Mercurius / similar), schema design, subgraph composition, persisted queries, performance tuning.
• Solid SQL and comfort with MySQL or Postgres in production; bonus for ClickHouse or Redis experience.
• Familiarity with AWS (EKS, Lambda, Aurora) and containerised deployment on Kubernetes.
• Comfortable with modern observability, feature flags, and CI/CD pipelines.
• Care for developer experience — APIs you would want to consume, docs you would want to read, errors you would want to debug.
• Bonus: experience with billing/commerce systems (Stripe / PayPal), API gateways, rate-limiting, agent protocols (MCP, A2A, x402), or LLM-based developer tooling.
• You are pragmatic, ship-oriented, and comfortable in a system big enough that no one person knows all of it.

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

Role Overview

We are looking for a Full Stack Developer with strong hands-on experience in Node.js and Angular to build scalable, secure and data-intensive applications. The role involves developing backend services and APIs, responsive web applications, integrations, automated testing and containerized deployments while working closely with product, QA and DevOps teams.

Key Responsibilities

• Develop and maintain full-stack applications using Node.js, TypeScript and Angular.
• Build scalable REST APIs, backend services and microservices using Node.js.
• Develop reusable, responsive and high-performance Angular components and modules.
• Integrate frontend applications with backend APIs and external services.
• Work with PostgreSQL and/or other relational/NoSQL databases, including basic query and performance optimization.
• Implement authentication, authorization and secure API communication using JWT/OAuth and HTTP/HTTPS.
• Work with event-driven architecture and messaging platforms such as Kafka where required.
• Use caching technologies such as Redis where applicable.
• Implement application logging, metrics and distributed tracing, preferably using OpenTelemetry.
• Containerize applications using Docker and work with CI/CD pipelines for build, test and deployment.
• Write clean, modular, reusable and testable code with appropriate unit and integration tests.
• Troubleshoot application, API and performance issues across frontend and backend.
• Participate in code reviews, Agile ceremonies and collaborate effectively with cross-functional teams.

Must-Have Skills

Backend

       3–5 years of hands-on Node.js development.

       Strong TypeScript / JavaScript skills.

       REST API development and microservices.

       Express.js / NestJS or similar Node.js frameworks.

       PostgreSQL or similar relational database.

       Understanding of authentication, authorization and API security.

       Hands-on experience with OOJS, ES6 Programming, TypeScript & JavaScript

       Experience with Server-Side Rendering and Unit Testing Frameworks

       Familiarity with Code Quality tools and processes (ESLint, flowerrors, sonar, etc.)

Frontend

       Proficiency in Angular and the latest versions

       TypeScript, JavaScript, HTML5, CSS/SASS.

       Angular components, services, routing and reusable modules.

       Responsive web development and browser compatibility.

       Frontend performance and basic accessibility practices.

       Deep knowledge of Angular best practices and commonly used modules

Engineering & DevOps

• Docker and containerized application development.
• Git and CI/CD fundamentals.
• Unit/integration testing and code-quality practices.
• Understanding of application logging, monitoring and observability.
• Agile/Scrum development experience.

Good to Have

• React.js experience.
• Kafka, gRPC and Redis.
• Kubernetes and cloud platforms such as AWS/Azure/GCP.
• OpenTelemetry and distributed tracing.
• Experience with high-volume/data-intensive applications.
• Experience with performance tuning and caching.

What We Look For

• Strong problem-solving and debugging skills.
• Ability to work across both frontend and backend independently.
• Good understanding of API, database and application architecture.
• Focus on quality, performance, security and maintainability.
• Good communication and collaboration skills

We are looking for a Senior Full-Stack Developer with strong experience in modern web and mobile application development.

Requirements:

* 4+ years of full-stack development experience

* Strong Node.js, TypeScript and React.js

* Hands-on React Native experience

* Strong PostgreSQL, Redis and REST API knowledge

* Experience with WebSockets and real-time systems

* Good knowledge of AWS, Docker and CI/CD

* Experience with third-party API integrations

* Strong understanding of scalable architecture and application security

* Experience with GPS/geolocation or real-time applications is a plus

* Strong problem-solving and debugging skills

* Ability to work independently and deliver within tight timelines

* Experience taking applications from development to production

Preferred: Experience in taxi, logistics, delivery, marketplace or booking platforms.

Mandatory (Experience 1) – Must have 3+ years of experience in Full Stack Development with hands-on experience building and deploying production-grade web applications.

2

Mandatory (Skills 1) – Must have strong hands-on experience in Python or Node.js for backend development.

3

Mandatory (Skills 2) – Must have experience developing REST APIs using frameworks such as FastAPI, Flask, Express.js or similar.

4

Mandatory (Skills 3) – Must have hands-on experience with at least one modern frontend framework such as React.js or Angular, along with JavaScript/TypeScript.

5

Mandatory (Skills 4) – Must have hands-on experience with SQL databases such as PostgreSQL, MySQL or similar.

6

Mandatory (Skills 5) – Must have experience integrating frontend applications with backend APIs and third-party services.

7

Mandatory (Skills 6) – Must have good understanding of OOP, data structures, software engineering practices and clean/testable code.

8

Mandatory (Skills 7) – Must have experience with Git/GitHub and standard development practices including code reviews and version control.

9

Mandatory (Skills 8) – Must have experience with cloud platforms such as Azure or AWS and exposure to application deployment.

10

Mandatory (Skills 9) – Must have hands-on experience with Docker/containerized applications and understanding of scalable application development.

11

Preferred (Experience 1) – Experience with Kubernetes, CI/CD pipelines and cloud-native deployments.

12

Preferred (Experience 2) – Experience with Redis/caching, asynchronous programming, microservices or distributed systems.

13

Preferred (Experience 3) – Exposure to AI/ML, Generative AI, LLM applications or RAG-based applications.

14

Mandatory (Age) - Candidate's Age should be below 28

15

Mandatory ( Location ) - Candidates Only From Pune & Mumbai.

16

Mandatory (Education) - Must be a B.E / B.Tech from Tier 1 Colleges (IIT, NIT, IIIT, BITS, DTU, NSUT)

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.