Fullstack Kotlin Engineer (Kotlin multiplatform) - Fulltime - EU

Location: Remote (UK), occasional travel
Contract: Contractor. 3–6 month initial engagement, extendable. Option to convert to
permanent if the fit is there.
Reports to: GenieConnect MD + Director of Engineering

About the comany

GenieConnect is a startup inside Cera Care, one of the UK's biggest home care providers. We build a remote care platform — companion robots, a care portal, mobile apps — that helps people live independently at home. It works: 96% medication compliance and around 10 hours of care saved per person per week.

We're a tiny team shipping a full-stack Kotlin platform (backend, web portal, Android robot app) and we need someone senior who can write code, drive the technical direction, and work alongside our ops team so what we ship actually works in the field. Agentic coding is the norm across Cera and we expect the same here.

This is a senior contract role. We want someone who owns the direction of the platform, not someone who waits for tickets. Agentic coding is our default: at least 70% of your code should come through Claude Code or equivalent.

What You'll Actually Do

• Own the technical roadmap with the MD: architecture decisions, build-vs-buy calls, tooling choices. This isn't a "pick up tickets" role.
• Ship fullstack Kotlin across the backend (APIs, data pipelines, NHS/LA integrations), the care portal (web), and the robot app (Android).
• Sit with ops. Understand how carers and care managers actually use the platform and build from that.
• Lead the V1 → V2 platform migration. The architectural choices you make here will run for years.
• Integrate AI capabilities like chatbot triage, predictive alerts and falls detection. We work with AI partners and need someone who can wire it together end to end.
• Push agentic coding practices (Claude Code, Copilot, Cursor) so a small team delivers more than its size suggests.
• Build out IoT integrations (BP monitors, thermometers, pulse oximeters) for virtual ward use cases.
• Keep the lights on: CI/CD, testing, observability, AWS. Small team, so you'll touch everything.

What We're Looking For

• Strong Kotlin background. The codebase is Kotlin Multiplatform and that's where we want the leverage on this contract, so we're looking for Kotlin-first fullstack engineers.
• Longer term we may be more stack-agnostic, but for this role it's Kotlin.
• Backend: Ktor, Spring Boot, or similar. API design, databases, the usual.
• Frontend: Kotlin/JS, Compose for Web.
• Willing to work across the full stack, Android included. You don't need deep mobile experience, but you're up for getting your hands dirty on the robot app when needed.
• Strategic instinct. You think about where the platform should be in 12 months, not just what's in the current sprint.
• Ops empathy. You care about how the product is deployed and used, and you go looking for that context.
• Agentic coding as your default. 70%+ of your daily work already runs through Claude Code, Copilot, or Cursor, and you can point to what that's enabled.
• Pace. You ship, you iterate, and you don't wait for permission.
• AWS: CI/CD, containers, infrastructure-as-code. Hands-on.

Carries Real Weight

• Regulated industry experience in health tech, social care, or fintech. Not essential, but if you already understand compliance, data governance and audit trails you'll get up to speed faster.
• Kotlin Multiplatform (KMP) experience
• CQC, NHS Digital, or DTAC frameworks
• IoT protocols and device management at scale
• Building LLM-powered features in production
• Background in robotics or assistive tech

Why This Role

You'll be one of the first engineers shaping a platform already deployed across local authorities and NHS pathways. It keeps vulnerable people safe and independent at home, and the data shows it. You get startup autonomy with the reach and contracts of a major care provider behind you. It's fullstack Kotlin, AI is on the roadmap, and you'll have the freedom to set the engineering direction.