Full stack software and AI Agent developer

Job Title : Full Stack Engineer

Location : New Delhi

Job Type : Full-Time

About the Role :

We are seeking a passionate Full Stack Engineer who enjoys building scalable, high-performance applications across web and mobile platforms.

This role is ideal for someone eager to work in a fast-paced startup environment, contributing across the full development lifecycle.

Mandatory Skills :

React.js, Next.js, React Native, Node.js, Express.js, PostgreSQL, AWS (EC2/S3/RDS/IAM), RESTful APIs.

Key Responsibilities :

• Design, build, and maintain scalable applications for web and mobile.
• Translate UI/UX wireframes into efficient, reusable, and maintainable code.
• Optimize applications for maximum performance, scalability, and reliability.
• Work on both front-end and back-end development using modern frameworks.
• Participate in code reviews, debugging, testing, and deployment.
• Collaborate with cross-functional teams to deliver high-quality products.

Requirements :

• Experience : 1+ years of software development (internships + full-time combined acceptable).
• Frontend Skills : React.js, Next.js, React Native.
• Backend Skills : Node.js, Express.js, RESTful APIs.
• Database : Strong knowledge of PostgreSQL.
• Cloud : Exposure to AWS services (EC2, Elastic Beanstalk, RDS, S3, ElasticCache, IAM).
• Additional : Experience with Redis and BullMQ is a strong plus.
• Strong debugging, problem-solving, and analytical skills.
• Enthusiasm for working in a dynamic startup environment.

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

JOB DESCRIPTION

About The Company

 The client is 17-year-old Multinational Company headquartered in Bangalore, Whitefield, and having another delivery center in Pune, Hinjewadi. It also has offices in US and Germany and are working with several OEM’s and Product Companies in about 12 countries and is a 200+ strong team worldwide. 

Join us as a Software Developer (M365, SharePoint, Power Platforms) within our Apps &Software Development team, to deliver end-to-end customized application development. We expect the individual to participate & contribute to every stage of the project right from

interacting with internal customers/stakeholders, understanding their requirements, andproposing to them the solutions which will be best fit to their expectations.

 Principal Duties and Responsibilities 

• Understand, design, implement & maintain O365, SharePoint and Power Platforms

solutions.

• Create detailed design artifact like program specifications, test plans, and independently

develop and review code 

• Design and develop solutions to implement requirement efficiently in line with business

strategy, security, and compliance 

• Use critical thinking skills to understand the pain points of business and generate desired

solution 

• Design of environment architecture with organizational IT architects and IT security 

• Create comprehensive solutions based on Microsoft Power platforms components like

Power App, Power Automate, Power BI and Power Virtual Agent, Data verse and

SharePoint. 

• Be a part of a learning culture, where teamwork and collaboration are encouraged, excellence is rewarded, and diversity is respected and valued. 

Knowledge, Skills, and Qualifications 

Education: bachelor’s degree 

Experience: Minimum 4 years of experience with Microsoft Power Platforms 

 Required Skills 

Experience in SharePoint Framework SPFx, SharePoint On-Premises (SP-2013) Basic Knowledge, SharePoint Online 

Familiarity with C#, ASP. Net MVC. Experienced in JavaScript and frameworks like React/Angular, HTML, and CSS, SharePoint 2016 

Knowledge of O365 products like Team, One Drive, One Note 

Basic Knowledge of the SharePoint Migration Tool 

Responsibilities

• Developing new user-facing features using React.js
• Building reusable components and front-end libraries for future use
• Translating designs and wireframes into high quality code
• Optimizing components for maximum performance across a vast array of web-capable devices and browsers

Skills

• Strong proficiency in JavaScript, including DOM manipulation and the JavaScript object model
• Thorough understanding of React.js and its core principles
• Experience with popular React.js workflows (such as Flux or Redux)
• Knowledge of isomorphic React is a plus
• Familiarity with RESTful APIs
• Knowledge of modern authorization mechanisms, such as JSON Web Token
• Experience with common front-end development tools such as Babel, Webpack, NPM, etc.
• Ability to understand business requirements and translate them into technical requirements
• A knack for benchmarking and optimization
• Familiarity with code versioning tools such as Git, SVN, and Mercurial

• 5+ years of working experience in the technologies like Angular6 or higher, NodeJS & MySQL, AWS Cloud Services
• Strong Hands-on with any Enterprise Programming Language (Python/.Net) in past
• Experience with architecting, designing, and debugging MEAN, full-stack based enterprise software
• Should have expertise in designing relational database tables & writing SQL Queries, Stored Procedures, and Functions.
• Ability to handle small teams and mentor them.
• Ability to analyze, design, and build object-oriented, component-based applications.
• Extensive experience in the design, planning, and implementation of complex large-scale enterprise solutions using distributed teams within process-oriented organizations.
• Experience developing and deploying applications on Linux based operating systems
• Willingness to experiment with new and latest tools and technologies.
• Experience in Banking, Credit Card Payments, and Gateways domain would be an advantage. ·