Fullstack Developer

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.

Position Title: Software Development Engineer (SDE-2)

Department: Engineering & Product

Location: Pune, Maharashtra (Remote)

Employment Type: Full-Time

Compensation: Competitive, commensurate with market standards and experience

ORGANISATION OVERVIEW:

Growloc Private Limited is a leading Agri-tech enterprise in India, specialising in Internet of Things (IoT) solutions for modern farm management. We are committed to empowering farmers through innovative technology that optimises resource utilisation, enhances crop yields, and ensures the delivery of consistent, quality produce.

Backed by a team of purpose-driven professionals, Growloc Private Limited is at the forefront of building a more sustainable, efficient, and productive future for Indian agriculture. Our work sits at the intersection of technology and rural impact — and every product we ship makes a difference.

POSITION SUMMARY:

We are seeking an experienced and results-driven MERN Stack Engineer (SDE-2) to join our growing Engineering team. The ideal candidate will possess a deep understanding of Data Structures and Algorithms (DSA), a proven ability to apply Design Patterns, and expertise in Low-Level Design (LLD) to architect and implement robust, scalable, and efficient full-stack solutions. This role is critical for building and maintaining high-quality, lean engineering environments that value smart development practices, quality-first thinking, and the strategic use of modern AI-assisted development tools.

KEY RESPONSIBILITIES:

•       Design, build, and maintain robust full-stack applications leveraging MongoDB, Nest.js, React.js, and Node.js, ensuring optimal performance, scalability, and maintainability through the judicious application of efficient algorithms, established design patterns, and sound Low-Level Design (LLD) principles.

•       Take complete ownership of features from architectural design through production deployment, utilising modern CI/CD workflows including GitHub Actions, Vercel, and AWS.

•       Integrate and strategically leverage AI-assisted development tools (e.g., GitHub Copilot, ChatGPT) to accelerate development velocity, improve documentation quality, and streamline test authoring.

•       Author and maintain comprehensive unit, integration, and end-to-end test suites to uphold rigorous code quality standards.

•       Collaborate cross-functionally with Product, Data, and Hardware teams within an agile, lean delivery framework to drive frequent, high-quality releases.

•       Ensure consistent performance, responsiveness, and scalability across both frontend and backend systems.

REQUIRED QUALIFICATIONS & SKILLS:

Educational Qualification

•       Bachelor's degree or higher in Computer Science, Information Technology, or a related engineering discipline.

Technical Skills

•       2–5 years of professional experience building production-grade applications on the MERN stack (MongoDB, Express.js, React.js, Node.js).

•       Strong proficiency in Data Structures and Algorithms (DSA), with the ability to analyse problem complexity and implement optimised solutions.

•       Demonstrable experience with various Design Patterns (e.g., MVC, Singleton, Factory, Observer) and their practical application in building scalable and maintainable software systems, coupled with a strong understanding of Low-Level Design (LLD) principles for modular and efficient code architecture.

•       Strong proficiency in frontend architecture, including React Hooks, Context API, and/or Redux.

•       Solid understanding of Node.js, Express.js, RESTful API design, and MongoDB schema design.

•       Hands-on experience with CI/CD pipelines, Git-based workflows, and cloud deployment on AWS or equivalent platforms.

•       Proficiency with automated testing frameworks such as Jest, Mocha, and/or Cypress.

•       Demonstrated use of AI-assisted coding tools integrated into day-to-day development practices.

PREFERRED QUALIFICATIONS (GOOD TO HAVE):

•       Exposure to IoT systems or prior experience with hardware device integration.

•       Experience with real-time data technologies, including WebSocket.

•       Professional background in agriculture, climate-tech, or rural technology sectors.

•       Working knowledge of TypeScript or serverless computing architectures.

KEY COMPETENCIES:

•       Strong problem-solving ability and analytical thinking, with a focus on applying Data Structures and Algorithms and Low-Level Design (LLD) principles to solve complex technical challenges efficiently and effectively.

•       High ownership mindset with the ability to drive features independently.

•       Effective cross-functional communication and collaboration skills.

•       Adaptability and willingness to work in a fast-paced, lean startup environment.

•       Commitment to code quality, continuous improvement, and engineering best practices.

Full Time @ Anywhere in India

3+ years

• Taking an active role in architecting the solutions we build
• Designing and implementing web applications using JavaScript and its frameworks (i.a. React, Vue, Angular), HTML5 and CSS3
• Working closely with the dispersed development team, client, and project manager in SCRUM methodology
• Ensuring that programming practices and code quality are respected
• Supporting other engineers with your expertise when needed (knowledge sharing)
• Leading your colleagues’ growth and development

• 2+ years of experience with JavaScript (good knowledge of ES2016; newer versions and TS 3+ are a plus)
• Experience in developing web applications using Angular2+ and another modern framework
• Being comfortable HTML5 and CSS3
• Experience with version control systems, preferably Git
• Demonstrated tech leadership in a medium-sized team, and the ability to design a really complex system
• Eagerness to learn and constantly improve yourself
• Being a team player focused on getting things done

• Experience with React.js and Node
• Experience with AWS or GCP infrastructure
• Curiosity about new languages, libraries, frameworks
• Contributions to open-source projects

• Passionate about making an impact
• Self-driven & eager to learn new technologies
• Intellectually curious, interested to build complex systems
• Thrive in a highly independent, remote-first environment
• Keen to work with a globally diverse team

• Hybrid Work Option - Step out when you “want to” not when you “have to”
• Work from the comfort of your home or work at the office
• Support for setting up Home-office
• Flexible Work Hours -Work-life balance becomes a lot easier to maintain with the flexibility to plan your work hours 
• Flexible Leave policies
• Life needs a break - casual, parental, sick, or just random. To help you enjoy your leaves without guilt or excuses, we have a ‘no approval needed’ policy
• Health and Wellness - Constant encouragement to stay fit
• We encourage and support our team members to participate in memberships that promote team member health (physical, emotional, and psychological) and fitness
• Reimbursements for medical support
• Career ladder: the freedom to design your own path
• Well defined career ladders to grow, assess and explore your professional journey
• Learning opportunities
• In house learning platforms to partner with you in your growth story
• Wide range of courses and certifications

Overview:  Looking for experienced Senior Developers to work on a cross-functional team to solve real-world problems for healthcare providers around United States of America.

They will be required to use their expertise to design, build, test, and improve the features that will enable our customers to effectively run their business and provide patient care. We are looking for ideal candidates who like solving tough problems, enjoys being part of a fun team, and are tenacious.

Requirements:

• Fluent English Required, and able to provide well-articulated and reasoned explanations for when and why to apply software design patterns.

• Experience of 3 to 5 years developing using MEAN Stack

• Strong development experience using Node.JS, Express, Angularjs and Mongodb

• Experience in UX, CSS, LESS/SASS, Git, Gulp

• Agile development background is required

• Test Driven Development experience

• Cloud deployment experience is preferred, working with Google, AWS, Jenkins, Docker

Sr. Software Developer (Full Stack)

Experience: 3-6 years

Required skills:

• Proficiency in React
• HTML, CSS, Bootstrap and Material UI
• Hands-on experience on working with charting libraries like Recharts, ECharts, plotly.js, D3.js

• Node.js and MongoDB