Full-stack Engineer (£60k-£80k + Equity) at IoT climate-tech startup

Job Title

Full-stack Engineer

Salary

£60k-£80k + Equity

Company Description

IoT climate-tech startup backed by Imagine H2O and Geovation

Job Description

Join a high-impact team building IoT sensors that protect urban infrastructure from flooding and pollution. As our second full-stack hire, you will lead a critical platform migration to AWS/Postgres, architect reliable data pipelines for real-time telemetry, and work across the stack from firmware interfaces to high-performance dashboards.

Location

London, UK

Why this role is remarkable

• Direct environmental impact building technology used by major utilities like Thames Water to prevent climate-related flooding and sewage failures.
• Immense technical ownership as a core member of a small, 5-person team where you influence system-level architecture and the transition to a modern cloud stack.
• Fast-paced startup environment with zero bureaucracy, working shoulder-to-shoulder with the founder to scale hardware-integrated software solutions.

What You Will Do

• Lead the migration from a legacy MongoDB environment to a modern AWS-hosted GraphQL and Postgres platform for better scalability and performance.
• Design and maintain secure cloud infrastructure using AWS CDK, implementing IaC, CI/CD pipelines, and end-to-end observability tools like logs and metrics.
• Collaborate with firmware and app engineers to ingest, validate, and process IoT telemetry from physical sensors into actionable data insights.

The ideal candidate

• 3–5 years of experience in Python and React/TypeScript with a proven track record of shipping and operating reliable backend services at scale.
• Deep expertise in AWS infrastructure, including VPCs, containerisation (Docker/Kubernetes), and relational database schema design and optimisation.
• A pragmatic problem-solver comfortable with IoT data flows, interested in following a signal from a device modem through to a cloud-hosted database.

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