Python + React 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

Required Skills

• Extensive senior level full-stack software development experience with Node.js (2 or more years) with detailed understanding of user interface frameworks, back-end software architecture interactions and node module capabilities.
• Two or more years' experience with one or more JavaScript frameworks/technologies such as Express.js, Angular.js, React.js, MobX or Flux.js.
• Strong development experience with developing RESTful Web Services using Node.js.
• Comprehensive knowledge of Scrum and Kanban Agile development process and ceremonies including scrums, planning events, backlog grooming, retrospectives and demos.
• Complex programming, program debugging, data analysis, problem analysis and resolution of issues within open source applications.
• Strong communication and collaborative skills in providing technical direction and hands-on software development to include design, development and testing.

Desired Skills

• Client development experience with HTML, DHTML, CSS, JavaScript
• Experience with other JavaScritpt frameworks such as Express, Restify, Hapi, Sails, JOI, and Kinex.
• Javascript experience with ECMAScript2015 (ES6), ECMAScript2016 (ES7) or Bable compiler.
• Operating System and Infrastructure experience with Linux, Windows 7, Unix, Solaris, JMS, OOD, CVS.
• Experience with VersionOne Application Lifecycle Management Tools
• Experience with Jenkins and Continuous Integration.
• Standards & Protocols knowledge including XML, XSLT, WSDL, JSON.
• Experience with Testing Tools including Mocha, Chai, Sinon, Supertest, Enzyme, Instanbul, Selenium, Load Runner, JSLint and Cucumber.
• Experience with source code versioning and Pull Requests with Git and Stash.
• Experience with IDEs such as Sublime and Atom.
• Knowledge of SonarCube, Phabricator, Gerritt, Karma, Jasmine
• Knowledge of projects using SAFe methodology.
• Experience with DevOps processes and implementation.
• Experience with environments utilizing Cloud Technologies such as Amazon Web Services.
• Experience with NGiNX web server.

At Appleute, we're not just developing software; we're shaping the future of technology by partnering with startups and SMEs to bring groundbreaking ideas to life. From sculpting Minimum Viable Products (MVPs) to scaling full-fledged platforms for millions of users, we engage in projects that challenge the status quo, powered by a blend of innovative technology, visionary founders, and transformative business models. Our work is driven by a passion for creating market-leading products that redefine industries.

Why Join Us?

Global Remote Culture: Embrace the freedom to work from anywhere in the world. Our remote-first approach ensures you have the balance and flexibility to work where you thrive.

Results-Driven Environment: We value outcomes over hours. Focus on making a significant impact, with the flexibility to manage your schedule around what works best for you.

Flat Organizational Structure: Say goodbye to bureaucracy. Our flat hierarchies mean your ideas and contributions are valued and can make a direct impact from day one.

A Team of A-Players: Join an elite team of tech enthusiasts and innovators. Our selective hiring process ensures you're working among the best in the industry, fostering an environment of learning and growth.

Innovative Tech Stack: Dive into cutting-edge technologies and tools. From JavaScript and TypeScript to AWS, Docker, and React/Express, you'll have the opportunity to work on exciting projects using the latest in tech.

You're a perfect fit if you're dedicated to:

Excellence in Code Quality: You understand that great products are built on clean, maintainable code.

Collaborative Problem Solving: You thrive in open discussions and enjoy brainstorming solutions with your team.

Continuous Learning: Your curiosity drives you to stay on top of new technologies and coding practices.

Taking Ownership: You take pride in your work, from concept to deployment, ensuring excellence every step of the way.

Your Impact:

Build Scalable Solutions: Develop software that's ready to grow from thousands to millions of users, focusing on performance and scalability.

Drive Integrations and Deployment: Implement seamless software integrations and efficient deployment strategies to enhance product capabilities.

Enhance Mobile Experience: Craft mobile-optimized applications and features that deliver exceptional user experiences.

Ensure usable Documentation: Hone your skills in improving documentation to be clear and concise that supports your team and project needs.

Technologies You'll Work With:

Frontend and Backend: JavaScript, TypeScript, React/Express, React Native, Node.js

Database Management: MySQL, Postgres and Prisma

Deployment and Version Control: AWS, Docker, Git/Gitlab, NPM

Salary Range - ₹30L – ₹40L

• Experience - 3-5 yrs
• CTC to Offer - 10-15 Lacs
• Work Location - Mumbai / Chennai

Front End: React JS / Ionic Framework

Back End: Spring Boot / Java

Database: Relational Database

• Should have developed minimum 2 projects with the above tech stack end to end with each project duration of minimum of 6 months
• Should have developed REST/JSON APIs with Spring Boot
• Should be able to develop a module independently end to end
• Should be able to design a simple database
• Should be able to understand and clarify client requirements
• Should be able to write FSDs
• Should be able to write unit test cases manually or using tools
• Should have worked with Service-oriented architecture
• Should know about code maintenance, code review, unit testing

• Observe, strategize, develop and design required software solutions.
• Designing Client-Side and Server-Side Architecture and Rendering and Static Site Generation.
• To confer with users - by studying systems flow, data usage & work related bottlenecks.
• Design and implement Back End and Front End code
• Interact with the production team, understand their workflow and find new ways to automate their workflow.
• Write effective APIs as well as Integrate third-party APIs.
• Test software to ensure responsiveness and efficiency
• Troubleshoot, debug and upgrade software
• Create security and data protection settings
• Build features and applications with a mobile responsive design
• Write technical documentation
• Work with data scientists and analysts to improve software
• Manage huge data sets including structured and unstructured data sources.
• Machine learning tools for workflow automation.
• Knowledge of Spark and Map Reduce.

• Strong Knowledge of and C#, .NET
• Strong knowledge of client-side dynamic and rich UI applications development.
• Hands-on experience on HTML, CSS, bootstrap, JavaScript, AJAX, jQuery and Prototyping.
• Strong hands-on experience in popular frameworks and JavaScript ecosystem – JS, Node, Angular, Jquery.
• Experience in Spark, Hadoop, Scala, and Elastic Search is a plus point.
• Experienced in building applications that meet enterprise needs – secure, scalable, loosely coupled design
• Exceptional design, coding, and problem-solving skills, with a bias for architecting at scale.
• Experience using NPM, Web-Pack, Gulp.
• Familiarity with performance testing and optimization’s.
• Strong knowledge of computer science, algorithms, and design patterns
• Write robust modular code for the full stack using the latest technologies, test and optimize it to work for high performance and scale and deploy it to the UiPath cloud platform.
• Work with various horizontal teams such as Structure, Electrical, Mechanical, Accessibility, Legal, and Finance and also interact with other core teams across locations at UiPath
• Own the smooth running of your cloud service or docker service, and respond to live site issues.
• Strong oral and written communication, and other soft skills critical to collaborating and engage with teams

Designation: Software Engineer II

Experience: 4+ years

Work Location: Marathahalli Outer Ring Road, Bengaluru

About the role:

At Bizongo, we believe in delivering excellence which drives business efficiency for our customers. As a Software Engineer at Bizongo, you will be working on developing the next generation of technology that will impact how businesses take care of their process and derive process efficiency. We are looking for engineers who can bring fresh ideas, function at scale and are passionate about technology. We expect our engineers to be multi-dimensional, display leadership and have a zeal for learning as well as experimentation as we push business efficiency through our technology. As a Software Engineer in Test, you’ll be testing complex scenarios, end-to-end, using automation frameworks like Selenium.

Must-haves:

• Proficiency in either Java or Python.

• At least 4 years of experience in working on automated testing frameworks like Selenium, Cucumber.

• Excellent understanding of Feature, Regression, and Smoke Testing.

• Clear understanding of RESTFul API’s and building test frameworks for the same

• Excellent in finding testing scenarios, catching corner cases of the feature that you would be testing.

• Ability to Manage and Test different Projects simultaneously.

• Tech/ BS in Computer Science (or have done relevant courses for the same)

• Good in analysis and solving problems.

• Excellent verbal and written communication skills.

• Passionate about working in a startup.

It would be a plus if:

• If you have built an automated test framework for at least one product from the scratch

• Understanding of how the web works

• Understanding of MVC frameworks like Ruby on Rails, Python Django

Key Responsibilities :

• Understand the design and end-to-end workflow of the feature/product specifications.

• Coming up with all the testing scenarios even before the start of development, after going through the design and specifications

• Keeping the test suite up to date with the latest changes

• Documentation - Keeping all the testing scenarios in the documented format so that anyone can test the scenarios manually if required

• Key role in keeping the production bugs count to zero

Why work with us ?

• Opportunity to work with "India's leading B2B" E-commerce venture. The company grew its revenue by more than 5.5x last year to reach to a 350 Cr annual revenue run rate scale. We invite you to be part of the upcoming growth story of B2B sector through Bizongo

• Opportunity to work with most dynamic individuals in Asia recognized under Forbes 30 Under 30 and industry stalwarts from across companies like Microsoft, Paypal, Gravitas, Parksons, ITC, Snapdeal, Fedex, Deloitte and HUL Bizongo is featured in LinkedIn Top Startups 2019: The 25 hottest Indian companies to work for!

• Working in Bizongo translates into being a part of a dynamic start-up with some of the most enthusiastic, hardworking and intelligent people in a fast paced and electrifying environment

• Bizongo has been awarded as the most Disruptive Procurement Startup of the year - 2017

• This year, Bizongo was awarded the highly prestigious & internationally acclaimed 'The DieLine Award' under the Sustainable Packaging category

• Being a company that is expanding itself every day and working towards exploring newer avenues in the market, every employee grows with the company

• The position provides a chance to build on existing talents, learn new skills and gain valuable experience in the field of Ecommerce

About the Company:

Company Website: www.bizongo.com

About Bizongo:

• Bizongo is India's largest multi-category technology-driven packaging platform. We are one of the largest B2B e-commerce players in the country. Bizongo's distinctive business model is a unified platform that solves design, development, and procurement problems for every packaging category. On top of this vision resides a stack of connected technology platforms that facilitate efficient business processes to provide an end-to-end experience which a focus on providing optimized technology-driven supply chain solutions. The place where creativity and technology converge is where transformation happens. With these elements put together, Bizongo is disrupting the market, enabling efficiency and bringing convenience in businesses.

• Packaging has the untapped potential to fit into this space. It is ubiquitous, it is unique, and it is used by diverse industries like FMCG, E-commerce, Automobiles, Pharmaceuticals, and many more. This has made it an ideal means for Bizongo to put their belief into action and create a platform for everything packaging.
  Bizongo serves 100+ enterprise customers across a wide range of industries and is providing packaging solutions to leading brands like Amazon, Johnson & Johnson, Tata Cliq, & Mondelez to name a few.

• Bizongo is a Series C funded startup and backed by marquee investors like Accel, B Capital, Chiratae Ventures, Schroder Adveq & International Finance Corporation (IFC). To be featured in Linkedin Top 25 startups and recognition by Forbes 30 under 30 Asia just validated our business model and affirmed our core beliefs.

Additional Perks:

• Medical Insurance

• Flexible Work hours

• Work from Home

• Casual Dress Code

• Recreational Facility

Full Stack Developer

PiNimbus is a product engineering and niche technology service provider. We help businesses of different sizes ranging from budding start-ups to large conglomerates with our services and end-to-end solutions.

We are looking for hands-on full stack developer for a challenging and fun filled work of building a workflow automation system for simplifying current manual work.

You will become a part of a dynamic team that is collaborative, cross functional, fast-paced and work hand-in-hand with other developers and product managers. We value long term relationships, growth and well-being of our people and we value our people more than anything.

Roles and Responsibilities:

In this role, you will be creating and supporting Internet scale applications and features using distributed architecture, using a variety of current and new technologies that support the ecosystem such as: React, RXJS, node.js, dynamodb, lambda, mysql, to name a few. In this dynamic role, you will be responsible for the following: 

• Work in an agile environment.
• You will design, develop, write tests, and build applications and features spanning multiple layers - front-end, microservices, serveless, database, messaging queues, workflow system.
• Build Microservices, APIs and service workers.
• Provide thought leadership and propose high performing solutions.
• Refactor and enhance the applications to improve performance and maintainability. 
• Ensure application content and developed code complies with design standards, coding standards, practices and approaches. 
• Continuously address tech debt in the code.
• Work as a team to develop optimal solutions that meet customers and business needs. 
• Support testing, deployment, and monitoring of applications. 
• Unit test, Automate, and take pride and responsibility for the Quality of the work you develop and deliver.

Must have skills:

7+ or more years of demonstrable development experience building software that provides the user with a complete, delightful experience. 

• Understanding of and experience in using RESTful Services and messaging platforms. 
• Good understanding and experience with http/2 protocols.
• In depth knowledge of front-end technologies such as React, CSS/SASS, RxJS. 
• In depth knowledge of backend technologies as Node.js.
• Understanding of dynamodb/MongoDB/couchbase and/or SQL - mysql, postgres. 
• Proficiency with SOLID Principles and Design Patterns. 
• Proficiency with debugging, source control -git, and defect tracking. 
• Proficiency with distributed systems design. 
• Knowledge of AWS, Kubernetes, Docker, CI/CD. 
• Familiarity with unit testing and Test-Driven Design. 
• Familiarity with Domain Driven Design. 

Qualification:

BE/B.Tech or Equivalent degree in Computer Science or related field.

• 6-13 years’ experience designing for high performing digital products across various domains
• Degree in design-related field or equivalent experience.
• Good understanding of design patterns, industry trends, and great approaches to solve problems
• Expertise in core UX disciplines including information architecture, interaction design, application of design systems, and UI design.
• Creative problem-solver with a strong eye for detail
• Experience and understanding of Responsive Web Design
• Experience with iOS and Android Mobile App Design
• Must have Software Proficiency with Figma, Sketch, Miro
• Proficient in wire-framing and comfortable producing concept sketches and user flows
• A passion for UX and User Research
• A strong portfolio which demonstrates work across a range of clients
• Strong experience of user research and usability testing
• Passionate about Design Thinking.
• Excellent verbal and written communications skills.
• Experience with accessibility, localization, and internationalization.
• Experience working directly with developers to ensure the successful implementation of a design specifications
• Familiarity with content strategy, content management, taxonomy and large scale digital publishing.
• Knowledge of HTML, CSS, and JavaScript.
• Knowledge with QA and testing methods is a plus.
• All candidates will be required to submit a portfolio of work samples and/or links to their work.