Full stack Developer

Job Description :

Position : Full Stack Developer (Python + React.js)

Location : Gurgaon (Work From Office, 6 days a week)

Employment Type : Full-Time

Role Overview :

We are seeking a highly skilled and motivated Full Stack Developer with expertise in Python and React.js to join our dynamic team in Gurgaon. The ideal candidate will have a strong foundation in backend and frontend development, a passion for building scalable applications, and the ability to thrive in a collaborative environment.

Key Responsibilities :

• Design, develop, and maintain scalable web applications using Python for the backend and React.js for the frontend.
• Build RESTful APIs and integrate third-party APIs to enhance application functionality.
• Collaborate with cross-functional teams, including designers and other developers, to deliver robust software solutions.
• Optimize applications for maximum speed, scalability, and responsiveness.
• Write clean, maintainable, and testable code following industry best practices.
• Debug and resolve technical issues across the stack.
• Stay updated with emerging technologies and contribute to improving existing development processes.

Required Skills and Qualifications :

• Experience: 3+ Years of professional experience as a Full Stack Developer.
• Backend Expertise: Strong proficiency in Python (Django/Flask/FastAPI).
• Frontend Expertise: In-depth knowledge of React.js, HTML5, CSS3, and JavaScript (ES6+).
• Database Management: Experience with SQL and NoSQL databases (e.g., PostgreSQL, MongoDB).
• Version Control: Proficiency in using Git for version control.
• Development Practices: Familiarity with Agile methodologies, CI/CD pipelines, and test-driven development (TDD).
• Problem-Solving: Strong analytical and problem-solving skills.
• Communication: Excellent communication and teamwork skills.

Preferred Qualifications

• Experience with Docker, Kubernetes, or cloud platforms such as AWS, GCP, or Azure.
• Familiarity with GraphQL and WebSockets.
• Knowledge of UI/UX design principles.

What We Offer

• Competitive salary package.
• Opportunity to work on exciting and challenging projects.
• Collaborative and inclusive work environment.
• Career growth and skill development opportunities.

Senior AI Engineer — Ruby on Rails

Techjays · Coimbatore / Chennai · Hybrid · Immediate – 30 Days Notice

About Techjays

We're the AI Reimagination Company — and that's not a tagline we put on a deck. It's what we actually do.

Techjays helps global enterprises rebuild the way they operate using AI at the core: not as a pilot, not as a feature, but as a foundational layer across products, workflows, and infrastructure. We're an Anthropic partner, which means our engineers get early access to frontier models and tools before they hit the market.

Our team includes engineers and leaders from Google, Akamai, NetApp, ADP, Cognizant Consulting, and Capgemini. We run like a high-agency startup, but we build production systems that real enterprise clients depend on.

Every project is greenfield. Every line of code you write ships.

What This Role Actually Is

This isn't a "keep the monolith alive" job.

You'll be designing and building new AI-powered features, integrating LLM APIs into production Rails applications, and using Claude Code as a core part of your daily workflow — not as an experiment. You'll work directly with US-based enterprise clients alongside Product Managers, AI Business Consultants, and Delivery Excellence Managers.

Your architecture decisions will have visible business impact.

What You'll Own

• Design, build, and maintain production-grade Ruby on Rails applications for US enterprise clients — from architecture to deployment
• Integrate LLM APIs (Claude, GPT-4, Gemini) into the Rails stack, building AI-powered features that drive real business outcomes
• Use Claude Code daily as your AI development partner — for generation, debugging, documentation, and velocity
• Build responsive, performant React front-ends from wireframes and design specs
• Own RESTful and GraphQL API design for client applications and third-party integrations
• Drive database design and optimisation — schema, queries, indexing, and migrations on PostgreSQL/MySQL
• Lead code reviews and raise the technical bar through constructive feedback
• Document architecture decisions, API contracts, and implementation patterns

Must-Haves

• 6+ years of deep, production-grade Ruby on Rails experience — advanced framework patterns, background jobs (Sidekiq/Redis), design patterns, best practices
• Hands-on experience with Claude Code (Anthropic) for AI-assisted development — this is central to how we build
• Strong React skills — hooks, component architecture, state management, wireframe to production
• Expert-level PostgreSQL/MySQL — schema design, query optimisation, indexing, performance tuning
• Proven experience designing RESTful and GraphQL APIs at scale
• Experience integrating third-party LLM APIs (OpenAI, Anthropic, Google Gemini) into production Rails apps
• Strong software architecture fundamentals — MVC, service objects, design patterns, testability
• Deep comfort with Git, Gitflow, and PR-based collaboration workflows

Good to Have

• Python for scripting, automation, or backend service integration alongside Rails
• AWS familiarity — EC2, S3, RDS, Lambda — for deployment and infrastructure
• MongoDB or NoSQL in polyglot persistence architectures
• Vector databases (Pinecone, pgvector, Weaviate) for LLM application development
• LangChain, LangGraph, or similar orchestration frameworks for AI agents
• SaaS multi-tenancy patterns and high-traffic web application experience
• Open source contributions or a strong public GitHub profile

Why Join Techjays

• Claude Code is standard practice here, not a side experiment — you'll use it every day to ship faster and smarter
• Anthropic partner access — early visibility into frontier AI tools and capabilities before the market sees them
• Greenfield only — you'll design architecture, not inherit technical debt
• Global client exposure — your engineering decisions translate directly to measurable business outcomes for US enterprise clients
• Team pedigree — you'll learn alongside engineers who've shipped at real scale at Google, Akamai, and NetApp
• AI is the product here, not a feature. You'll spend your career at the intersection of software engineering and AI systems

What We're Looking For Beyond the Resume

• Builder mindset — you think in systems, not tickets
• Ownership — you take features from idea to production
• Structured thinking in ambiguous, fast-moving environments
• Clear communicator, collaborative team player

What We Offer

• Competitive compensation
• Hybrid work — Coimbatore office or remote flexibility
• Paid holidays and flexible time off
• Medical insurance for self and family (up to ₹4 Lakhs per person)
• Opportunity to work on production-grade AI systems for global clients
• A culture built on clarity, integrity, and continuous growth

Location: Coimbatore / Chennai — Hybrid Notice Period: Immediate to 30 days preferred

Hiring for the position of Full Stack Developer  / Senior Full Stack Developer responsible for managing back-end services and the interchange of data between the server and the users.

Your primary focus will be the development of all server side logic, definition and maintenance of the central database, and ensuring high performance and responsiveness to requests from the front-end. You will also be responsible for integrating the frontend elements built by your co-workers into the application. Therefore, a basic understanding of frontend technologies is necessary as well.

We are looking to recruit a candidate for a role that will require:

• Create and consume restful APIs
• Design, develop, and maintain internal and external applications
• Build efficient, testable, and reusable modules
• Write high quality, structured application/interface code and documentation
• Identify solutions through research and collaboration that resolves the root of problems as they arise
• Define functional and technical requirements for application software to develop skills and knowledge
• Troubleshoot, test and maintain the core product software and databases to ensure strong optimization and functionality
• Contribute in all phases of the development lifecycle

Requirement

∙ Proficient in Node.JS and ReactJS development stack

∙ 2+ years’ experience designing, querying, and updating databases in MySQL/nosql

∙ Basic understanding of web technologies including HTML, CSS, JavaScript, AJAX etc.

∙ Passion for best design and coding practices and a desire to develop new bold ideas

∙ Good to have knowledge of AWS, Redis, ElasticSearch

Education: Min. Graduate in related discipline

Work experience: 2 years relevant experience

Required Skills :

• Writing well-designed, testable and efficient code.

• Development of the website

• Debugging and removal of errors.

• Should have worked on .Net, C#, Jquerry, SQL Server

• Additional knowledge on WordPress and MVC preferred

• Gathering and evaluating user feedback.

• Working as a part of a dynamic team to deliver winning products.

• Providing code documentation and other inputs to technical documents.

• Supporting continuous improvement by investigating alternatives and new technologies and presenting these for architectural review.

• Troubleshooting and debugging to optimize performance.

The Profile

• Strong experience in Angular

• You are highly goal driven and work well in fast paced environments

• You possess strong analytical skills and are comfortable dealing with numerical data

• You are adaptable and thrive in changing environment

. Work on Angular 6+

• Good communication, Report to USA manager

• Remote work

• Expert with Git, PR

MERN Stack Developer will work closely with the cross-team to discover effective and elegant solutions to complex problems.

·         Excellent knowledge of HTML, CSS, Material-UI and Responsive.

·         Strong concepts of Javascript, ReactJs, NextJS.

·         Should have Excellent Experience of Node.js.

·         In-Depth knowledge of Express Js, JavaScript, TypeScript,

·         Should have experience in MongoDB, My SQL, GraphQL, and any graph Database

·         Experience working with REST APIs, and Sockets.

·         Ability to Identify and fix production and non-production application issues as a part of the deployment.

·         Good Knowledge of AWS - Beanstalk, Cloud Watch.

·         Good Knowledge of JSON, API, and JWT.

·         Good to have Agile/JIRA/ Continuous Deployment experience.

·         Ability and willingness to manage multiple projects/tasks.

Job Responsibilities:

·         Should have completed B. Tech in IT / CS.

·         Understanding accessibility and security compliance (Depending on the specific project)

·         Understanding fundamental design principles behind a scalable application.

·         Good communication and language skills.

·         Strong focus on performance optimizations, caching, and scalability.

·         Ability to deal well with ambiguous/undefined problems; ability to think abstractly

We are building a core technology team at our new startup. If you are interested in working with a startup and growing along with a startup, this is the opportunity for you.

Backend: PHP Laravel (must), NodeJS (knowhow)

Frontend: Any Javascript, ReactJS (preferred)

Others: MySQL or any SQL database, Knowhow of Microservices architecture

As a Full Stack Developer, you will develop applications in a very passionate environment being responsible for Front-end and Back-end development. You will perform development and day-to-day maintenance on large applications. You have multiple opportunities to work on cross-system single-page applications.

Required Skills

• ASP.net (Web API), Entity Framework 6, C# (.NET 4.5),
• MYSQL
• Javascript (experienced writing modular, object-oriented Javascript)
• Knowledge with jQuery, AngularJS libraries
• E Knowledge with RESTful web services HTML5, CSS3, BootStrap 3 of multiple design patterns
• Experience Wth Git based version control
• Minimum 2+ years developing production JavaScript code and strong knowledge of React.JS