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.
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Full-stack Engineer at ManholeMetrics
Help prevent urban flooding and sewage failures with a London-based climate-tech startup. As a core Full-stack Engineer, you'll own the migration of a mission-critical IoT platform to AWS/Postgres and work on real-world telemetry that protects communities. With £60k-£80k salary and meaningful equity, this is a rare chance to join a lean, 5-person team backed by Imagine H2O and Geovation. If you're a Python expert who loves following data from physical sensors to the cloud, this is your next challenge.
About this role
Role overview
About the company
ManholeMetrics
Environmental Services, IoT, Wastewater Infrastructure
IoT climate-tech startup backed by Imagine H2O and Geovation
What you'll do
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.
Who you are
Who this is a fit for
- 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.
Why this role
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.
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