Software Developer - Lead

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

• Proven experience as a Full Stack Developer or similar role
• Experience developing desktop and mobile applications
• Familiarity with common stacks
• Knowledge of multiple front-end languages and libraries (e.g. HTML/ CSS, JavaScript, XML, jQuery)
• Knowledge of multiple back-end languages (e.g. C#, Java, Python) and JavaScript frameworks (e.g. Angular, React, Node.js)
• Familiarity with databases (e.g. MySQL, MongoDB), web servers (e.g. Apache) and UI/UX design
• Excellent communication and teamwork skills
• Great attention to detail
• Organizational skills
• An analytical mind
• Degree in Computer Science, Statistics or a relevant field

Job Description:

Primary:  Core Java, Spring boot, Microservices, Angular 4+ version, HTML, CSS

• Should have hands on experience on Angular 4 + version and Java Development.
• An in-depth understanding of design aspects and should be able to apply the same.
• Translates business requirements into technical details relevant to web application.
• Familiarity with JS frameworks such as AngularJS, jQuery
• Deep and extensive knowledge of JavaScript and the web development ecosystem (bootstrap, SASS)
• Experience with server-side technologies languages such as Node.js, Bower, Gulp/Grunt
• F/E Unit test framework: Jasmine, Protractor
• B/E Unit test framework: JUnit Mockito
• Knowledge and experience using IDEs such as Eclipse/RAD/IntelliJ,
• Good working experience in Core Java, MVC frameworks, and UML, Design Patterns.
• Experience in Jersey or Rest Easy
• Experience with EJB, Hibernate, Spring Framework
• WebSphere Application Server and DB2 and Oracle DB
• Experience in design and engineering of REST/SOAP based web services.
• Should have experience utilizing best practices and have worked with industry standard design patterns.
• Knowledge of OWASP Top 10 Security Rules
• Proficient understanding of Code version tool like Git/ Bitbucket and SVN
• Familiarity with Continuous Integration and tools such as Maven and Jenkins.
• Experience in distributed Agile SCRUM methodology 

Secondary:

• Hibernate/JPA, jQuery, bootstrap, Webservices, Good communication skills.

Work Experience:  3 to 8 Years

Work Location – Pune (Viman Nagar)

 About Company: Great Places to Work certified company

AIT Global India Pvt. Ltd. (https://aitglobalindia.com/">LINK) is one of the formidable IT Services Organization which has deeper expertise in various areas of Technology to address the critical business priorities of customers from Public Sector, Education, E-Commerce, Healthcare, BFSI, Financial Services, Automobile, Manufacturing Retail and a lot more. Organizations belonging to these industries have to – not only be agile towards the Technological Disruptions and maintain a steady / balanced course towards its business priorities, but also Overcome the Challenges to Maintain Costs & ‘Ensure Long-Term Growth’ as this scenario isn’t going away anytime soon. We are headquartered out of Matawan, New Jersey (USA). In the past one and half decade, we have organically grown from service to service each time exceeding our goals and moving forward towards the next. There are a range of services which we could deliver for the customers that could add value to their business goals or objectives, which help them attain new milestones of growth. With almost a Decade and a Half Years of Happy Customers from different parts of the world for services ranging from Web Technologies, Mobile Technologies, Product Development, DevOps, Data & Analytics, Quality Assurance, Digital Content Management, to emerging Technologies like Artificial Intelligence (AI), Robotic Process Automation (RPA), Cyber Security, Cloud and more... our organization has served customers when it mattered them the most; to help them achieve their business growth priorities. While doing this we now have almost 100 employees working from USA on H1 Visa working in 4 different time zones and in India we have around 200+ Employees, working on different IT projects out of the two locations in Pune.

And of course - As an IT Services Organization we are also helping our customers with Subject Matter Experts from various fields of Technology on a 'Contract to Hire' basis as a part of our Consulting Line of Business.

We have our Registered Office at Wanowrie and our India Development Centre is located at Viman Nagar, E- Space IT Park.

We are proud to be  ISO certified and as https://www.greatplacetowork.in/get-certified/certified-organizations/#mid-size">Great Place to work  certified since last wo consecutive years. AIT Global India feels honoured to have recently certified and featured in https://www.cioreviewindia.com/magazines/rpa-october-2020/#page=28">CIO Review earning recognition among their "Most promising RPA Service Provider" Companies.