Full Stack Developer – AI Agent Platform (Express AI) at Express Text · Remote only · 3 - 6 years · $5K - $18K / yr · Profitable · Remote only · Posted 2 Jan 2026

Project Overview
We’re building Express AI, a SaaS platform that allows small and medium-sized businesses (SMBs) to easily train and deploy their own dedicated AI agents for customer service, technical support, sales, and more.
Our vision is to give SMBs the power of enterprise-grade AI without complexity. You’ll help build the core platform that powers this – including agent training interfaces, web deployment, dashboards, and integrations.
Key Responsibilities
• Develop scalable full-stack features using modern JavaScript frameworks
• Build and maintain AI agent training modules (upload docs, FAQs, tone settings)
• Integrate OpenAI, Whisper, LangChain, and other LLM APIs
• Implement user-facing dashboards for chat/voices/social/email agent monitoring
• Design multi-tenant systems with admin-level controls
• Ensure reliability and scalability of the platform as we grow
Tech Stack
• Frontend: React.js, Next.js, TypeScript
• Backend: Node.js, Express, MongoDB (or Postgres), Redis
• AI & NLP: OpenAI API (ChatGPT, Whisper), LangChain, Python (optional)
• DevOps: Docker, AWS or GCP (basic familiarity okay)
• Other: WebSockets for real-time chat, REST APIs, Git
Role Type
• Full Stack Developer (preferred)
• Frontend or Backend specialists also considered, but must be willing to collaborate on both sides
Experience Level
• 3 to 6 years of professional experience
• Previous work with SaaS platforms, AI tools, or multi-tenant architecture is a big plus
Must-Have Skills
• Proficiency in JavaScript/TypeScript
• Strong experience with React.js and Node.js
• Experience working with REST APIs and building secure web apps
• Solid understanding of cloud deployment (AWS/GCP/Firebase)
• Ability to work independently, self-manage, and deliver in a fast-paced environment
Nice-to-Have Skills
• Familiarity with LangChain, OpenAI, AI agent frameworks
• Experience with voice/chat integration
• Prior experience building tools for SMBs or customer support systems
Engagement Type
• Full-time (preferred) or part-time with clear weekly availability
• Remote (India-based candidates only)
Why Join Us?
• Work on a cutting-edge AI platform solving real problems for real businesses
• Fast-moving, no-red-tape team environment
• Build something that will impact millions of small businesses globally

About Express Text
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Similar jobs (10)
Total Experience: 4+ years
Mode of Hire: Permanent
Required Skills Set (Mandatory): HTML, JavaScript, Node.js, Express.js, MongoDB, React/Next.js, AI Integration (LLMs/APIs - OpenAI, Anthropic, Gemini)
Desired Skills (Good if you have): Cloud Platforms (AWS), System Design, Application Security
What is the role all about?
We're hiring full-stack engineers who build with AI, not the traditional way. You should be fluent in modern web engineering, primarily Node.js, and just as fluent in using LLMs and AI tools (Cursor, Claude Code, and similar) to ship fast. Work that once took a month should take a week; what took a week should take a day.
The role spans a range, from architecting backends for non-trivial products like assistants and agents, to rapidly turning a requirement into a clean, customer-facing app or MVP. Be strong in at least one area, be comfortable across the system as a whole, and tell us where you're strongest so we can place you accordingly.
What will you do?
- Plan, build, and ship product features end-to-end, with AI embedded where it has the most impact.
- Integrate LLMs and AI APIs into production-grade applications.
- Use AI tools to prototype, build, and deliver at high speed without sacrificing quality.
- Design scalable APIs and data models with Node.js, Express.js, and MongoDB.
- Build responsive, performant, customer-facing interfaces with React/Next.js.
- Contribute to design discussions, code reviews, and architectural decisions.
What are we looking for?
AI leverage:
- You've shipped real things using LLMs or AI APIs and instinctively reach for AI to move faster.
- Comfortable with prompt engineering and judging AI output for production-readiness.
Engineering depth and delivery:
- Solid fundamentals: problem-solving, data structures, and how systems fit together.
- At least 2+ years across frontend (React/Next.js), APIs (Node.js/Express.js), and databases (MongoDB).
- You write clean, production-grade code and you ship.
- Knowledge of application security or ethical hacking is an advantage.
Culture
- Work with performance-oriented teams driven by ownership and passion.
- Learn to design systems for high accuracy, efficiency, and scalability.
- No strict deadlines, focus on delivering quality work.
- Meritocracy-driven, candid culture. No politics.
- Very high visibility regarding which startups and markets are exciting globally.
About Tracxn
Tracxn (Tracxn.com) is a Bangalore-based product company that provides a research and deal-sourcing platform for Venture Capital, Private Equity, Corp Dev, and professionals in the startup ecosystem.
We are a team of 800+ working professionals serving customers across the globe. Our clients include Funds such as Andreessen Horowitz, Matrix Partners, and GGV Capital, as well as Large Corporates such as Citi, Embraer & Ferrero.
Founders
- Neha Singh (ex-Sequoia, BCG | MBA - Stanford GSB)
- Abhishek Goyal (ex-Accel Partners, Amazon | BTech - IIT Kanpur)
About Technology Team
Tracxn's Technology team is 50+ members strong and growing. The technology team is subdivided into multiple smaller teams, each of which owns one or more services/components of the technology platform. Ours is a young team of motivated engineers with a minimal management structure, in which almost everyone is actively involved in technical development and design. We have a team-centric culture where ownership and responsibility for a feature or module lie with a team rather than an individual.
We work on an array of technologies, including but not limited to ReactJS, Next.js, Storybook, Webpack, Node, Mongo, AWS Lambda, Spring, Elastic Stack, MySQL, Kafka, Redis, Ansible, etc.
We value ownership, continuous learning, consistency, and discipline as a team.
Role: Full Stack JavaScript/TypeScript Developer
We're looking for a Full Stack Developer with strong JavaScript/TypeScript fundamentals to join our team and help build AI-powered product features.
Responsibilities:
Core Skills & Competencies (Must have):
- Strong proficiency in TypeScript and solid JavaScript fundamentals
- Front-end development skills with the React ecosystem (Next.js), including state management libraries like Zustand, Redux
- Expertise in HTML/CSS, with experience creating responsive and adaptive designs
- Experience building AI-assisted features such as chatbots, content generation, semantic search, recommendations, or intelligent automation
- Experience with RESTful services and APIs
- Familiarity with AI SDKs, LLM APIs, and vector databases
- Experience with SQL and database management, understanding relational databases, and ability to write efficient and optimized queries
- Understanding of database design and management, especially with SQL
- Experience with version control systems such as Git
Desired Skills & Competencies (Nice to have):
- Experience with event-driven architecture
- Experience with cloud services like Azure or AWS
- Familiarity with modern DevOps practices
- Understanding of security practices and web application security
- Familiarity with CI/CD pipelines
What we're looking for:
- Strong command over JS/TS fundamentals, not just framework-level knowledge
- Candidates with internship experience or a background from a reputed engineering college preferred
- Please share your GitHub link, portfolio, or details of projects you've built (personal, academic, or professional)
Full-Stack Software Engineer | Remote
We're hiring a product-focused Full-Stack Engineer to join a small, fast-moving tech team. This is a hands-on role you'll build complete features across frontend, backend, APIs, databases, deployment, and increasingly, AI-assisted workflows.
What You'll Do:
- Build and ship full-stack features using modern JS/TypeScript, plus Java or Node.js on the backend
- Work across frontend, backend, APIs, databases, integrations, and deployment
- Apply secure engineering practices (auth, input validation, secrets, dependencies)
- Use AI tools for coding, debugging, testing, and code review
- Explore AI agents, tool calling, and MCP-based integrations
What We Need:
- 3+ years of professional software engineering experience
- Strong JS/TypeScript skills; experience with Angular or React
- Backend experience with Java, Node.js, or similar
- Comfortable with REST APIs, databases, Git, cloud environments
- Awareness of OWASP principles and application security
- Interest/experience in AI dev tools, Docker, CI/CD
Gen AI Full stack Developer:
We're looking for a Full Stack Software Engineer to help build Gen-AI applications for energy industry. If you are interested in leverage cutting-edge techniques to build APIs and complex data pipelines with end-to-end ownership of the feature you build alongside a team of some of the best engineers in the energy industry, then you will love working at Enverus. We are looking for a developer with a natural curiosity, and preferably someone who has full stack experience and a willingness to pick up additional skills on the job!
The Team:
You will join our software engineering team which focus on the forefront of innovation in the energy industry. Here, you'll be part of a highly collaborative and agile group dedicated to prototyping and leveraging cutting-edge technologies to develop new products and solutions. Come join the team and help pioneer Enverus’ mission to drive the future of energy.
What you will do:
• Full Stack Development: Design and implement user-facing features using modern frontend frameworks (React, TypeScript) integrated with Python-based backend services
• Scalable APIs: Develop RESTful APIs and microservices that power GenAI applications across the platform
• Data Pipelines: Build and maintain data processing workflows using AWS services (S3, Lambda, DynamoDB, OpenSearch)
• End-to-End Features: Own features from concept to production—frontend, backend, database, and deployment
• GenAI Integration: Implement and optimize AI/ML model integrations, including LLMs and agentic workflows
• Modern Engineering: Work in an agile environment with CI/CD, automated testing, code reviews, and continuous improvement
What You Bring
Required
• Education: Bachelor's degree in Computer Science or related field
• Experience: 4+ years as a software developer with full stack exposure
• Backend Expertise: Strong Python, TypeScript skills with experience building APIs and backend services
• Frontend Proficiency: Experience with modern JavaScript frameworks (React, Vue, or Angular) and TypeScript
• Cloud Architecture: Hands-on experience with AWS services (S3, Lambda, DynamoDB, API Gateway)
• Database Knowledge: Proficiency with both relational (PostgreSQL/MySQL) and NoSQL databases
• DevOps Mindset: Familiarity with CI/CD pipelines, containerization (Docker/Kubernetes), and version control (Git)
• Problem Solving: Strong foundation in data structures, algorithms, and system design
• Communication: Excellent English communication skills; able to collaborate effectively across teams
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
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.
About the Role
As a Full Stack Developer at Talentlo, you will design, build, and ship features across the entire product stack — from intuitive front-end experiences to robust back-end services. Your work will directly shape the platform that transforms how companies hire.
Apply here :(https://www.talentlo.com/jobs/full-stack-developer-talentlo-bangalore-01a1254d-071)
All applications are reviewed and processed through Talentlo. Please apply using the link above.
Responsibilities
- Design and implement scalable full-stack features using React Native, Node.js, and Python across web and mobile surfaces
- Build and maintain RESTful APIs that power seamless candidate and recruiter experiences
- Architect and optimise relational database schemas to support reliable, high-performance data access
- Collaborate with product and design teams to translate requirements into clean, maintainable code
- Write unit, integration, and end-to-end tests to ensure code quality and system reliability
- Participate actively in code reviews, contributing to engineering standards and best practices
- Troubleshoot and resolve production issues quickly, implementing lasting performance improvements
- Manage version control workflows using Git, including branching strategies and pull request reviews
- Contribute to technical documentation, architecture discussions, and sprint planning ceremonies
- Integrate third-party services and cloud infrastructure components to extend platform capabilities
Experience & qualifications
Must-have skills : React Native, Node.js and Python
Required skills : Relational Databases, REST API, Git and Full Stack Development , TypeScript and AWS
Required qualifications
Bachelor's degree in Computer Science, Engineering, or a related field — or equivalent practical experience
Preferred qualifications
Familiarity with Agile or Scrum development methodologies
Experience working in a startup or product-led engineering environment
Exposure to AI/ML integrations or data-driven product features
Opportunity. This is a rare chance to build a high-impact product from the ground up, influence the technical direction of an AI-powered hiring platform, and grow rapidly alongside a company solving a real problem at scale.
Why join us
01 Build Something That Matters Impact
Your code will directly influence how thousands of companies discover and hire talent. At Talentlo, every feature you ship has a measurable real-world effect on hiring outcomes.
02 Accelerate Your Technical Career Growth
Work across the full stack, engage with AI-driven product challenges, and grow your skills rapidly in an environment that encourages ownership and experimentation.
03 High-Ownership, Low-Bureaucracy Team Culture
Join a lean team where your ideas are heard, decisions are made quickly, and you have genuine autonomy over how you solve problems.
04 Competitive Compensation Package Compensation
We offer a market-competitive salary, performance-linked incentives, and the opportunity to share in the company's growth through an early-stage equity programme.
About Talentlo
Talentlo is an AI-powered Hiring Intelligence platform built for companies that want to make smarter, faster hiring decisions. Rather than relying solely on resumes and keyword matching, Talentlo evaluates candidate skills, experience, projects, and behavioural insights to surface the right fit for every role. The platform helps hiring teams screen candidates, rank applicants, understand candidate-job fit, and move from application to offer with confidence.
Mission & vision: Talentlo's mission is to bring intelligence to every hiring decision. The vision is a world where every company — regardless of size — has access to the same quality of hiring insight that the best teams in the world rely on.
Culture: Talentlo operates as a small, high-ownership team where engineers are trusted to make meaningful decisions. The culture values clarity over process, outcomes over activity, and continuous learning. Every team member contributes directly to the product and sees the impact of their work quickly.
Position Overview
We are seeking a versatile Senior Full Stack & AI Agent Developer to architect, build, and
maintain end-to-end software solutions spanning web platforms, desktop applications, and
autonomous AI agents capable of interacting with and controlling these software systems.
The ideal candidate will bridge traditional engineering software with cutting-edge artificial
intelligence to automate data processing and enhance operational decision-making. While
not strictly required, a background or strong interest in the energy sector—specifically
drilling and completion operations—is highly desirable.
Key Responsibilities
• Full Stack Development: Design, develop, and deploy robust web applications and
native desktop software utilized by engineering and operational teams.
• AI Agent Engineering: Build, train, and integrate autonomous AI agents and LLM-
driven workflows capable of interpreting data, executing commands, and safely
controlling desktop and web-based software.
• Workflow Automation: Translate complex workflows into intuitive software features
and autonomous agent actions, minimizing manual data entry and operational
bottlenecks.
• Data Integration: Handle high-frequency data streams and integrate them seamlessly
into user interfaces and backend AI models.
• Architecture & Scalability: Ensure high performance, security, and scalability across
cloud infrastructure (AWS/Azure), local desktop environments, and potential edge
computing setups.
• Cross-Functional Collaboration: Work closely with domain experts and end-users to
translate field challenges into technical product requirements.
Required Qualifications & Experience
• Experience: Minimum of 5 years of professional software development experience,
with a proven track record of delivering production-ready web and desktop
applications.
• Programming Languages: Strong proficiency in Python, JavaScript/TypeScript, and at
least one compiled language (C#, C++, or Java).• Web & Desktop Frameworks: Hands-on experience with modern frontend
frameworks (React, Angular, or Vue.js), Node.js, and desktop application development
(Electron, WPF, Qt, or Tauri).
• AI & Agent Tooling: Demonstrated experience building AI agents using LLM APIs
(OpenAI, Anthropic), open-source models (Hugging Face), LangChain, LlamaIndex,
AutoGPT, or custom agent architectures.
• Automation & UI Control: Expertise in software control mechanisms using tools like
Selenium, Playwright, PyAutoGUI, Appium, or computer vision-based GUI automation to
allow AI agents to navigate software.
• Cloud, DevOps & Databases: Experience with Git, Docker, CI/CD pipelines, cloud
platforms (AWS/Azure/GCP), RESTful APIs, GraphQL, and relational/NoSQL databases.
Preferred Qualifications (Strong Plus)
• Industry Domain Expertise: Prior hands-on development experience within the oil and
gas sector, specifically focused on drilling, completions, rig operations, or subsurface
engineering software.
• Data & Protocols: Familiarity with oilfield data standards (e.g., WITSML, OPC-UA) and
time-series databases.
• Experience deploying AI models and agents in edge or low-connectivity environments
(such as offshore rigs or remote drilling sites).
• Familiarity with safety-critical software design and cybersecurity standards in
industrial control systems (ICS/SCADA).
• Degree in Computer Science, Software Engineering, Petroleum Engineering, or a related technical discipline.
The recruiter has not been active on this job recently. You may apply but please expect a delayed response.
Full Stack Developer
Experience: 3 to 5 Years
Location: Hyderabad
Interview Mode: Face-to-Face (F2F)
Work Mode: Hybrid
Employment Type: Full-Time
Note: Immediate joiners or candidates with a notice period of up to 15 days are preferred. We are only considering candidates who can attend a face-to-face interview at our office.
Role Summary;
We are looking for a Full Stack Developer (React.js + Python + AWS + AI) to design, develop, and maintain scalable web applications and AI-powered solutions. The ideal candidate must have strong experience in React.js, Python, AWS, and AI development. Hands-on AI development experience is mandatory for this role.
Mandatory AI Skill Requirement - AI development experience is mandatory. Candidates without hands-on AI development experience will not be considered.
Candidates must have practical experience in one or more of the following:
- Building AI-powered applications.
- Working with Large Language Models (LLMs).
- Prompt Engineering.
- Retrieval-Augmented Generation (RAG).
- AI agent development using LangChain, LangGraph, or similar frameworks.
- Integrating AI models through APIs such as OpenAI, Anthropic, or Gemini.
- Developing AI-enabled workflows and intelligent business applications.
Note: Experience using AI coding assistants (ChatGPT, GitHub Copilot, Claude, Gemini, etc.) alone does not meet this requirement. Candidates must have actual AI application development experience.
Key Responsibilities
- Develop and maintain full-stack web applications.
- Build responsive frontend applications using React.js.
- Develop backend REST APIs using Python (FastAPI / Django / Flask).
- Design, develop, and integrate AI-powered features into applications.
- Develop and deploy applications on AWS cloud services.
- Work with relational databases (MySQL / PostgreSQL / SQL Server).
- Integrate frontend and backend components.
- Follow Agile/Scrum development processes.
- Write clean, maintainable, and production-ready code.
- Collaborate with cross-functional teams to deliver scalable and high-quality solutions.
Required Skills (Mandatory)
- 3 to 5 years of Full Stack development experience.
- Strong experience in React.js.
- Strong backend development experience in Python.
- Hands-on experience with AWS cloud services.
- Hands-on AI development experience (Mandatory).
- Experience with LLMs, Prompt Engineering, RAG, LangChain, LangGraph, or similar AI frameworks.
- REST API development experience.
- Strong SQL database experience.
- Git and Agile development workflow.
- Good understanding of software design principles and best practices.
Good to Have
- Docker
- CI/CD pipelines
- Microservices architecture
- Kubernetes
- Experience with vector databases and AI model integrations
Preferred Qualifications
- Bachelor's degree in Computer Science or a related field.
- Strong problem-solving and analytical skills.
- Good communication and teamwork abilities.
- Passion for learning new technologies, especially AI, cloud technologies, and modern software development.
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.














