Lead Java Developer

Job Summary

We are seeking an experienced Java Full Stack Developer with 8+ years of hands-on experience in designing, developing, and maintaining scalable web applications. The ideal candidate should have strong expertise in Java (Spring Boot) on the backend and React.js on the frontend, along with experience in REST APIs, Microservices architecture, and cloud-based deployments.

Key Responsibilities

• Design, develop, and maintain scalable full-stack applications using Java, Spring Boot, and React.js
• Develop RESTful APIs and Microservices-based applications
• Collaborate with cross-functional teams including UI/UX, DevOps, QA, and Product teams
• Write clean, efficient, and reusable code following best practices
• Perform code reviews and mentor junior developers
• Optimize applications for performance and scalability
• Participate in architectural discussions and technical decision-making
• Ensure application security, data protection, and compliance standards
• Troubleshoot, debug, and upgrade existing systems

Required Skills:

• 7+ years of experience in Full Stack development
• Strong hands-on expertise in Java (8/11/17)
• Proficiency in Spring Boot, Spring MVC, Spring Security
• Experience in Microservices architecture and RESTful API development
• Strong knowledge of React.js, JavaScript (ES6+), HTML5, CSS3
• Experience with state management tools (Redux/Context API)
• Hands-on experience with Hibernate/JPA
• Good understanding of SQL databases (MySQL/PostgreSQL/Oracle)
• Experience with Git, Maven/Gradle, and CI/CD pipelines
• Working knowledge of Docker/Kubernetes
• Exposure to Cloud platforms (AWS/Azure/GCP) preferred
• Strong problem-solving and analytical skills

Fountane Archipelago  ·  Island Role

A Little Bit About the Role

We are looking for a Senior Product Engineer (L3) who thrives in complexity. Most engineers build on blank canvases — you build on someone else’s mess and leave it better than you found it.

The majority of your work at L3 will be on existing, live codebases — disorganised, partially documented, built by multiple teams over multiple years. Your job is to enter those systems, understand them before touching them, extend and clean them without breaking what works, and progressively bring them up to a standard where AI tooling can accelerate further development. This is the core of what L3 does at Fountane. If you have only built greenfield projects, this role will be hard.

You are expected to be genuinely full stack: comfortable owning web applications and mobile apps, the frontend, backend, database, state management, and API integration layer — without needing to hand off to a specialist.

You will work closely with the Concept Engineer on your Island — translating their prototypes into production architecture, raising technical blockers early, and keeping the sprint honest. You will also review code, mentor junior engineers, respond to production incidents, and contribute to the network’s shared knowledge base.

All of this is done primarily with Cursor and Claude as your execution and reasoning tools. AI-assisted engineering is not a feature of this role — it is the method.

AI-First Engineering Expectation

Cursor and Claude are your primary tools — not supplements. Engineers at L3 who are not using AI at the codebase level are not operating at this level.

At L3, AI-assisted engineering means:

• Loading full codebase context into Cursor before writing a single line — understanding the system before touching it.
• Writing scoped, precise refactor prompts that isolate changes to one concern at a time.
• Using Cursor to generate tests that document existing behaviour before any restructuring begins.
• Using Claude for architecture reasoning, decision documentation, and translating CE briefs into structured technical plans.
• Producing inline documentation and decision records as part of the AI-assisted workflow — not as an afterthought.
• Sharing effective prompt patterns and Cursor discoveries with the broader Fountane network — kept to yourself, they are a missed contribution.

Key Responsibilities

Legacy Codebase Refactoring & the Cleaning Phase

This is the primary L3 engagement type at Fountane. You will be handed existing, partially documented codebases — built by previous teams, often without tests, with inconsistent patterns — and your job is to refactor them into a clean, AI-promptable state without losing existing functionality. You use Cursor’s codebase context window to navigate safely, write characterisation tests before touching anything, and make changes in small, reviewable increments. The standard is: every module you leave should be easier to extend by AI tooling than when you found it.

Full Stack Development — Web & Mobile

Build and own the full application layer: React / Next.js web frontends, React Native or Flutter mobile apps, Node.js / Python backends, and relational and non-relational databases. You should be able to pick up web or mobile on any engagement without needing a handoff. Schema design, data modelling, and state architecture are yours to own — including diagnosing and fixing broken or leaking state in existing frontends.

Third-Party API Integrations

Integrate complex third-party services — payments (Stripe), communications (Twilio), auth (Auth0), and others — reliably and without creating brittle dependencies. Own the integration layer end to end: error handling, retries, failure modes, and documentation. If a third-party integration is flaky in production, that is your problem to own.

CE Collaboration & Sprint Integrity

Work directly with the Concept Engineer to translate prototypes into buildable technical plans. Review CE briefs before the sprint starts — if the scope is technically unrealistic, the time to say so is before work begins, not on demo day. Raise blockers against acceptance criteria proactively. You are the technical check on what the CE promises the client.

Security Awareness

Write code that does not require the Lead to security-audit every line. This means: input validation by default, no hardcoded secrets, correct auth scoping, safe handling of user data, and awareness of common vulnerabilities (injection, broken auth, insecure direct object references) in the context of the stacks you work in. You are not the security architect — the Lead owns that — but you are expected to produce code that does not introduce obvious vulnerabilities.

Production Incident Response

When something breaks in production, you are on it. Diagnose the issue, apply a safe fix or rollback, document what happened and why, and hand a clear summary to the Lead for the client post-mortem. Speed matters, but a bad fix that causes a second incident is worse than a slow fix that is correct. Response expectation: acknowledged within 1 hour, resolved or escalated with a clear status within 4 hours.

Codebase Navigation & Safe Refactoring

On all engagements — not just Cleaning Phase work — keep changes small, focused, and reviewable. One type of change per commit. Write tests that document existing behaviour before restructuring. Leave every module easier to understand than when you found it.

Code Review

Review pull requests from L1 and L2 engineers with specific, actionable feedback — not rubber-stamp approvals. A good code review at L3 leaves the author understanding what to do differently next time, not just what to fix now. Review weekly; do not let PRs age.

Mentoring

Review junior engineers’ code weekly with specific, useful feedback — this is distinct from quality-gate code review. The goal here is teaching, not gatekeeping. Run monthly pairing sessions to help them grow. The measure of good mentoring is whether they are becoming more capable and less dependent on you over time.

Documentation

Write short decision records when you make significant technical choices. Leave every module you touch easier to understand than when you found it. Treat documentation as part of the engineering work, not a separate task you do at the end.

Qualifications

• 5+ years of experience as a software engineer, with a strong track record on real production codebases you did not build from scratch — incomplete documentation, inconsistent patterns, other people’s decisions. If your experience is primarily greenfield, this role will be a difficult fit.
• Genuinely full stack across web and mobile: proficient in React / Next.js and at least one of React Native or Flutter, Node.js or Python on the backend, and comfortable with both relational and non-relational databases including schema design.
• Hands-on, daily Cursor and Claude usage at the codebase level. You should be able to describe concretely how you use AI in your engineering workflow — not in general terms.
• Experience integrating complex third-party APIs in production environments — not just following a quickstart guide. You should be able to describe an integration that failed in production and what you did about it.
• Solid security awareness for the stacks you work in: input validation, auth scoping, safe data handling. You do not need a security specialism, but you should not be writing code that introduces obvious vulnerabilities.
• Has conducted meaningful code reviews that improved the code and the author, not just approved the PR.
• Has coached or mentored junior engineers before, and done it well.
• Comfortable with production incident response — diagnosing issues under pressure, applying safe fixes, and communicating clearly to a Lead or client about what happened.
• Treats documentation as part of the job, not an afterthought.
• Bachelor’s or Master’s in Computer Science or a related field, or equivalent experience.

About Fountane

Fountane is a technology ventures lab - one part product studio, one part startup engine. We build high-quality software and AI products for clients ranging from fast-moving startups to large enterprises, and we co-build and invest in new companies when we see the right opportunity.

Founded in 2017 and headquartered in Minneapolis, we have grown to 60+ people across four continents and were recognised as one of America’s fastest-growing companies, ranking No. 699 on the Inc. 5000 with 595% three-year growth.

We are radically open-minded, serious about craft, and direct about expectations. If you want to do meaningful work without politics, this is the place.

We are solving complex technical problems in the financial industry and need talentedsoftware engineers to join our mission and be a part of a global software development team. As a Java Full Stack Developer, you will be responsible for designing, developing, and maintaining enterprise applications using Java and Angular. You will collaborate with cross-functional teams to define, design, and ship newfeatures, and you will work closely with Architects to ensure the technical feasibilityof designs and implement them accordingly

Position Overview: The Lead Software Architect - Python & Data Engineering is a senior technical leadership role responsible for designing and owning end-to-end architecture for data-intensive, AI/ML, and analytics platforms, while mentoring developers and ensuring technical excellence across the organization. 

Key Responsibilities: 

• Design end-to-end software architecture for data-intensive applications, AI/ML pipelines, and analytics platforms
• Evaluate trade-offs between competing technical approaches 
• Define data models, API approach, and integration patterns across systems 
• Create technical specifications and architecture documentation 
• Lead by example through production-grade Python code and mentor developers on engineering fundamentals 
• Conduct design and code reviews focused on architectural soundness 
• Establish engineering standards, coding practices, and design patterns for the team 
• Translate business requirements into technical architecture 
• Collaborate with data scientists, analysts, and other teams to design integrated solutions 
• Whiteboard and defend system design and architectural choices 
• Take responsibility for system performance, reliability, and maintainability 
• Identify and resolve architectural bottlenecks proactively 

Required Skills:  

• 8+ years of experience in software architecture and development  
• Bachelor’s or Master’s degree in Computer Science, Engineering, or a related field 
• Strong foundations in data structures, algorithms, and computational complexity 
• Experience in system design for scale, including caching strategies, load balancing, and asynchronous processing  
• 6+ years of Python development experience 
• Deep knowledge of Django, Flask, or FastAPI 
• Expert understanding of Python internals including GIL and memory management 
• Experience with RESTful API design and event-driven architectures (Kafka, RabbitMQ) 
• Proficiency in data processing frameworks such as Pandas, Apache Spark, and Airflow 
• Strong SQL optimization and database design experience (PostgreSQL, MySQL, MongoDB)  Experience with AWS, GCP, or Azure cloud platforms 
• Knowledge of containerization (Docker) and orchestration (Kubernetes) 
• Hands-on experience designing CI/CD pipelines Preferred (Bonus) 

Skills: 

• Experience deploying ML models to production (MLOps, model serving, monitoring) Understanding of ML system design including feature stores and model versioning 
• Familiarity with ML frameworks such as scikit-learn, TensorFlow, and PyTorch  
• Open-source contributions or technical blogging demonstrating architectural depth 
• Experience with modern front-end frameworks for full-stack perspective

Job Title: Full Stack/ Frontend Developer

Location: Chennai, India

Duration: Full-Time

Position Overview

We are seeking an experienced and motivated Full Stack/ Frontend Developer to join our innovative team. If you are passionate about coding, problem-solving, and building intuitive user interfaces, we would love to hear from you! In this role, you’ll work closely with back-end developers and UX/UI designers to deliver exceptional web applications for the higher education sector.

Key Responsibilities

● Develop and maintain interactive, responsive, and user-friendly front-end applications using Java, JavaScript, and modern frameworks.

● Collaborate with back-end developers to integrate front-end functionality with back-end services.

● Work closely with UX/UI designers to ensure user interfaces are visually appealing, functional, and consistent.

● Participate in code reviews and uphold high-quality coding standards. ● Troubleshoot and resolve front-end issues and optimize performance. ● Stay up-to-date with the latest trends in front-end development.

Required Skills & Experience

● 4+ years of experience in Java-based front-end development.

● Strong experience with HTML, CSS, JavaScript, and front-end frameworks. ● Hands-on experience with Spring, Hibernate, Thymeleaf, Velocity, jQuery, and Java.

● Familiarity with RESTful APIs and front-end integration practices.

● Experience in responsive design and cross-browser compatibility.

● Strong problem-solving skills and attention to detail.

● Ability to collaborate effectively in a team environment with strong communication skills. Preferred Skills

● Experience with modern JavaScript frameworks (React, jQuery plugins, DataTables, etc.).

● Familiarity with version control systems like Git.

● Knowledge of Agile development methodologies.

● Prior experience in higher education technology or education-related software.

Note: Experience with Thymeleaf and Velocity is good to have. Tapestry can be ignored as it is legacy. 

Title: Full Stack Developer: MERN/MEAN 
Experience:3 - 6 years 

Location: Gurgaon / Hyderabad 

Salary: Competitive as per Industry Standard

We are searching for a talented and experienced web application developer to join a highly agile/scrum development team to develop our next-generation data analytics applications. This is a senior technical role and the successful candidate must demonstrate a proven track record of developing enterprise-grade web front-end using technologies such as MEAN stack, JavaScript, Ajax, and JSON.

Primary responsibilities include:

• Lead and develop web applications and data visualizations for our big data analytics platform. 
• Develop Proof-of-Concept and prototype applications using new technologies and frameworks. In addition to collaborating with internal teams and clients to create innovative solutions. 
• Help establish GUI best practices and JavaScript frameworks for web development
• Provide technology and implementation expertise to domains, projects, or clients 
• Maintain leading-edge knowledge in emerging technologies and frameworks; participate in knowledge sharing and lessons learned sessions from project experiences 

What you need for this position: 

• 3+ Years of relevant experience. 
• Hands-on Expertise in javascript-based frameworks and technologies such as ExpressJS, Angular (all versions), and NodeJS. 
• Experience in building high-performance multi-user web-scale applications and portals. ● Familiarity with visualization libraries like D3 JS, Kibana, etc. 
• Proven experience in developing software using the Agile/SCRUM development methodology. 
• command of web standards, CSS-based design, and cross-browser compatibility. 
• Attention to detail, Dedication, and Problem Solving skills. 
• Knowledge of Elasticsearch, Neo4j / VoltDB / MongoDB / Redis is good to have. 
• Good understanding of developer tools and DevOps such as Git, Ansible, cloud platforms such as AWS, Docker, etc is good to have. 
• Preferred, not mandatory - Prior experience in mobile development (Hybrid app- Ionic/Cordova, React Native)

Our perfect candidate is someone who:

•  Is proactive and an independent problem solver
•  Is a constant learner. We are a fast-growing company. We want you to grow with us!
•  Is a team player and a good communicator

BANKIT Services Private Limited is an assisted B2C company. The vision of the company is to make “Millionaire Agents Network” (MAN) i.e. to maximize the number of agents who are able to make Rs. 10L as revenue in a year by delivering various BANKIT services. We are going towards our target of opening BANKIT outlets and KIOSKS at every city, every village even in remote areas of country to experience all the citizens the easiest, fastest & safest Digital payment platform and all the Digital services under one roof. In order to serve the under digital and under banked population in India, we have prepared an assisted agent led model which works to offer digital and financial services to the last mile. Banking and financial services along many value-added services are available for end customers through BANKIT channel partners in their neighborhood. Services like Domestic Money transfer, Cash Withdrawal, Prepaid Cards, Recharges, Bill Payments, Travel Bookings etc. are made available 24X7 through our proprietary web and mobile applications. These applications are made very user friendly as per the needs of the target users and are built using the state-of-the-art technology to make the transactions secure and instant.

Founded- 2010

Specialties - Domestic Money Transfer, Travel & Stay, Prepaid Cards, UPI, AEPS, BBPS, QR Code, Cash @ POS, Agent Mobile App, Money Remittance, Blockchain, Micro ATM, E-KYC, Merchant Network, FinTech Company, Digital India, and PAN CARD Center

About Role:

Full Stack Developer/Software Developer

Experience: 1+ years

Salary bracket- Industry Fit

Responsibilities:

• Building and developing web application using Angular 2+, Node Js and Mongo DB
• Maintenance and support of existing application
• Problem solving, debugging and analytical skills
• Monitoring and deploying application on Microsoft Azure

Technical / Functional Skills:

• 2+ years of hands-on experience in Angular 2+, Node Js, Mongo DB and Microsoft Azure

• Strong experience in performance tuning of complex Mongo DB queries
• Good understanding of Typescript, JavaScript (ES6), CSS, HTML
• Experience in the contact center industry preferred
• Experience in using Git/Bitbucket or any version control tools
• Graduate in IT, Computer Science or similar relevant field preferred

Attitudinal skills:

• Must be able to work without much assistance
• Great communication and interpersonal skills
• Analytical and process-oriented mindset