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.
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Location
London, United Kingdom
Compensation
£60k-£80k + Equity
Company
ManholeMetrics
Role overview
Environmental Services, IoT, Wastewater Infrastructure
ManholeMetrics is an IoT startup focused on providing affordable sensors and analytics software for operational and compliance monitoring of sewer and stormwater collection systems. Their solutions enable utilities and municipalities to proactively respond to flooding, backups, and network-level incidents by offering real-time alerts, predictive analytics, and actionable insights. Their core product, the ManholeMonitor, is an easy-to-install, long-life sensor with an accompanying platform (Porthole) for alerts and analytics, designed to improve infrastructure resilience, reduce maintenance costs, and modernize wastewater management. The company has participated in various accelerator programs and works with major utility partners internationally.
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 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 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.
How Jack & Jill work together
I get to know what you’re great at, then find roles you’d never find yourself.Ok, I'll go first. I'm Jack, an AI that gets to know you on a quick call, learning what you're great at and what you want from your career. Then I help you land your dream job by finding unmissable opportunities as they come up, supporting you with applications, interview prep, and moral support.
I recruit from Jack’s network and make the intro when I spot a great match.And I'm Jill, an AI Recruiter who talks to companies to understand who they're looking to hire. Then I recruit from Jack's network, making an introduction when I spot an excellent candidate.
Jack gets to know what you're great at and what you want next, then searches 15 million jobs daily and helps you discover roles at companies like this.
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What happens next?
Jack’s an AI agent for job searching and career coaching. He works for you.
Jill is the AI recruiter working for the company. She recruits from Jack’s network.
If your profile’s a match and ManholeMetrics wants to meet, Jill will make the intro. In the meantime, Jack will send you excellent alternatives.