Full-Stack Product Engineer – R&D; Prototype Challenge | Part-Time / Side Project

We are looking for one strong, hands-on engineer to take on an interesting R&D; challenge in healthcare technology.

We have a hypothesis for a current internal technology platform. Before committing to a full-scale build, we want to develop a working prototype, test it with real-world data, and define the future technology strategy.

This is not a conventional development assignment with a detailed specification.

We will define the business problem. You will help determine how best to solve it.

The ChallengeStarting with read-only access to our existing systems and data, you will independently build an end-to-end prototype involving:

- Data pipeline from a large existing MySQL database
- Data transformation and an appropriate storage/data layer
- A simple application with list, detail and dashboard views
- Natural-language interaction with structured data using LLMs
- OCR and structured extraction from scanned medical and claims documents
- 1–2 prediction / classification use cases
- Rules, exceptions and actionable alerts
- APIs and a simple, usable front end

We are deliberately not prescribing the complete technology stack or architecture. Choosing the right tools, architecture and trade-offs is part of the challenge.

What You Will Deliver1. A working prototype

Something our team can actually use and evaluate on real-world data.

2. An R&D; assessment

What worked, what didn't, what you learnt from the data, and which ideas are worth taking forward.

3. Future technology strategy

If the prototype validates the opportunity, how should we build the production platform? What architecture, technology choices and implementation roadmap would you recommend?





Who We Are Looking ForThis is likely to suit an experienced Full-Stack Engineer, Product Engineer or Software Engineer who enjoys building things from scratch.

You should have strong hands-on capability across several of the following:

Python / Java · SQL · MySQL · Data Engineering · REST APIs · React / Streamlit · LLMs · RAG · OCR / Document AI · Machine Learning · Git · Docker

You do not need to be a specialist in every technology listed above.

What matters more is your ability to understand an ambiguous problem, work across the technology stack, make good engineering decisions and independently get to a working outcome.

There will be imperfect data. Documentation will not always be complete. Some hypotheses may not work.

That is part of the R&D; challenge.

EngagementType: Part-time / Contract / Side Project

Duration: Approximately 4-6 weeks alongside a regular role

Location: Remote; Mumbai preferred but not mandatory

Commercials: Fixed project fee

This is genuinely an R&D; exercise. A well-supported conclusion that a particular hypothesis does not work is also a useful outcome.

If the prototype validates the opportunity, it will help define the roadmap for a larger production implementation.

Interested?Please send your CV to [email protected]

Subject: R&D; Prototype – Full-Stack Product Engineer

Along with your CV, tell us briefly about one product, system or prototype that you personally built or substantially owned from idea to working implementation.

GitHub, product or demo links are welcome.

Please ensure that your existing employment terms permit you to undertake an outside project.

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📌 Full-Stack Product Engineer – R&D Prototype | Part-Time Project (Mumbai)
🏢 Volo Health Insurance TPA
📍 Mumbai