Fullstack Developer

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

I’m looking for a senior full stack developer who can move fast, code fast, and lead projects from concept to delivery using Claude Code as a development accelerator.

You should be comfortable taking ownership of full features and delivering complete, production-ready results quickly. The right person knows how to leverage Claude Code for rapid iteration, build structured systems fast, and manage a small remote team of developers to keep progress constant.

We are building automation and trade software tools that require strong backend architecture, asynchronous task processing, and modern, responsive interfaces. You’ll be directly responsible for shaping and delivering new systems end-to-end.

Your work will include:

• Leading development of new modules and full products  

• Building backend logic in Django with Celery task flows  

• Developing frontends with Angular or React  

• Using Claude Code daily to accelerate development and testing  

• Managing tasks, coordinating developers, and ensuring constant delivery  

• Integrating APIs, handling data processing, and optimizing performance

You must be a hands-on coder who thrives in a fast execution environment and can manage both code quality and delivery speed.

Requirements:

• Strong experience with Django, Celery, and REST APIs  

• Solid frontend experience with Angular or React  

• Excellent understanding of asynchronous systems and data pipelines  

• Proven experience leading developers or managing sprints  

• Experience with PostgreSQL, Docker, and Git based workflows  

• Familiarity with financial or trade software is a big plus  

• Strong communication skills and ability to manage progress across multiple projects  

• Comfortable using Claude Code or similar AI coding tools to build fast

I’m looking for a senior professional who can code, lead, and deliver without delay. Someone who can think strategically, execute quickly, and ensure results every week.

This is a full-time role for someone who wants to lead high-speed development and deliver complete, real-world systems with the help of AI coding tools.

•  Good communication skills in English (Written and Oral)
•  Strong knowledge of RDBMS concepts
•  Strong analytical and problem-solving skills
•  Experience in performance tuning
•  Experience in interaction with the customer
• Mandatory technical skills Java 8+, Angular 2+, HTML, CSS, TypeScript
• Preferred Tools (SVN, GIT, Maven, Jenkins Jira Confluence) 
•  Ability to explore the application by himself/herself from the training provided

• New feature development or enhancement or change request activities (Requirement analysis, Requirement documentation, Design, Coding, Review, Testing and Release process)
•  Defect Fixing (Defect analysis, route cause identification, Code change, testing, obtaining user confirmation and release process)
• Support tasks (Ticket analysis, data uploading, performance tuning, job monitoring, any analysis task, ReportGeneration and etc.,)
• Level 2 and Level 3 support (Support process adherence)
• Functional and technical or solution documentation preparation
• Execution will either be Waterfall or Agile
• The process needs to be followed as defined by RBEI or RBEI’s Customer
• Preparation & participation in the project status and review meeting

Full Stack Developer – Java, Angular

Description

The Position holder is responsible for developing products and services based on Java & Linux systems, functions as a Senior Software developer, and assists in the entire software lifecycle. The position reports to the Project Manager.

Successful Position holders are excellent communicators, enjoy solving problems, and work well in teams.

Roles and Responsibilities

• Responsible for software development.
• Develop and implement micro services (Must-have)
• Documenting low-level design for the assigned development work.
• Help to integrate UI components using Angular with backend micro service.
• Build reusable libraries and code for future use.
• Optimize application for maximum performance and scalability.
• Interface with other teams across SLB to ensure collaboration.
• Build an effective system that adheres to automation and other engineering best practices.

Qualifications and Experience

• Degree and qualification level - B. Tech/B.E. in Engineering with 5-10 years of relevant experience.
• Strong hands on work experience in Design & Development of Responsive Web application
• Must have -> Experience on any cloud services (AWS/Azure/Google Cloud)
• Must have -> At least 5+ Years of experience in building applications using Java/J2EE
• Must have -> Knowledge of document store, Kubernetes, messaging queue
• Must have ->Strong hands on work experience in Design & Development of Responsive Web application
• Experience in Angular JS (2/4/5/6) & JavaScript
• Experienced in working in agile teams
• Knowledge of Agile methodology
• Knowledge of Secure Programming Principles
• Knowledge or Experience in any one scripting language (bash, python)
• Experienced in working in a DevOps model.

We are seeking a WordPress Developer responsible for both back-end and front-end development, including creating WordPress themes and plugins. This position requires a combination of programming skills (namely PHP, HTML5, CSS3, and JavaScript) and aesthetics (understanding element arrangements on the screen, the color and font choices, and so on). The candidate should have a strong understanding of industry trends and content management systems. Experience with the responsive and adaptive design is strongly preferred. Also, an understanding of the entire web development process, including design, development, and deployment is preferred.

• Designing and implementing new features and functionality
• Establishing and guiding the website’s architecture
• Ensuring high-performance and availability, and managing all technical aspects of the CMS
• Helping formulate an effective, responsive design and turning it into a working theme and plugin.

• Good understanding of front-end technologies, including HTML5, CSS3, JavaScript, jQuery
• Experience building user interfaces for websites and/or web applications
• Experience designing and developing responsive design websites
• Comfortable working with debugging tools like Firebug, Chrome inspector, etc.
• Ability to understand CSS changes and their ramifications to ensure consistent style across platforms and browsers
• Ability to convert comprehensive layout and wireframes into working HTML pages
• Knowledge of how to interact with RESTful APIs and formats (JSON, XML)
• Strong understanding of PHP back-end development
• Basic onpage SEO skills

• Skills -
  • Core (Must understand and conversant to code on at least two of these technologies)
    • Java 8+/ Spring Boot/Microservices
    • Spark
    • Scala
    • Angular
    • Javascript
    • ElasticSearch
    • Graph Database (Tinkerpop/Janusgraph)
    • MySQL/Oracle
    • AWS/Azure/GCP
  • Secondary
    • Version Control - Jira/Bitbucket/Git
    • Build Tools - Maven/SBT/Gradle
    • Security
    • Agile/Scrum methodology
    • Should be able to create and review designs/documents
    • Must be able to clearly articulate situations, problems and communicate ideas and solutions

• Must understand System Analysis and Design with understanding of Algorithms (implementation in any language is okay)
• Design optimal and performant solutions for product backlog items spanning technologies
• Work with Product Owner/Project Manager and UX lead for providing LoE estimates for Jira backlog items
• Lead and own delivery or work items (for self and team)
• 80% hands-on work items (self), 20% team responsibility
• Must be willing to learn new technologies, processes, business functions, (we measure this by OKR’s)

Qualifications and Skills