Senior Full-Stack Engineer, ManholeMetrics

• You have strong skillset in full-stack development (core focus on backend and cloud infrastructure at scale) with the ability to identify problems and opportunities across the stack—and the initiative to solve them end-to-end
• You are experienced with cloud infrastructure setup and scaling (DigitalOcean/AWS/Azure/GCP), including VPCs, IaC (Terraform), containerization (Docker), orchestration (Kubernetes or managed alternatives), CI/CD (GitHub Actions), and observability (logs/metrics/traces)
• You are comfortable with datastores (e.g. MongoDB, time-series) and caching (Redis)
• Observability: OpenSearch/ELK, Prometheus, Grafana, alerting and on-call readiness
• Familiar with containerised applications and SRE/CI/CD tools (Docker, Kubernetes/managed orchestration, Terraform, GitHub Actions)
• You are highly proficient in Python and modern backend frameworks (ideally FastAPI), with solid experience designing RESTful APIs, data models, and background jobs
• You have 3–5 years of industry experience with a proven track record of shipping reliable services to production and operating them at scale, following industry best practices and managing 1-2 person teams
• You have vast experience working with and shipping React/HTML/CSS/JavaScript/TypeScript projects
• You care deeply about security, reliability, and cost efficiency—familiar with least-privilege access, secrets management, SSL/TLS, and compliance-minded logging
• You have a portfolio you’re proud of (e.g., deployed services, internal platforms, open-source repos)
• You’re excited to learn and apply new languages, frameworks, and tools to create real-world solutions
• You’re a pragmatic problem-solver who employs design thinking, values sound engineering principles, and pays close attention to detail
• You enjoy multi-faceted exposure to work-streams in IoT, sensor technology, networking, embedded systems, app development, firmware, software, and SaaS/DaaS analytics (familiarity is a plus; your focus remains backend & cloud)
• You communicate clearly—translating client needs into robust engineering solutions and explaining complex concepts to non-technical stakeholders
• You thrive in a small, diverse team, excel under pressure, and proactively step into new challenges—start-up dynamism suits you
• You’re an ecowarrior at heart—motivated by building technology that combats climate change and delivers measurable societal impact
• You have the right to work in the UK or a visa with at least 6 months remaining (we can sponsor a Skilled Worker visa post-probation)
• You are London-based or willing to relocate to London and are happy to commute 3+ days/week to our Vauxhall-based office (Edinburgh House Workspace office)

Desirable

• Design and build reliable backend services and APIs that ingest, validate, and process IoT telemetry at scale (including parsing and modeling device data, e.g., Protocol Buffers → Pydantic)
• Manage cloud infrastructure: set up and evolve secure, observable, cost-aware environments (VPCs, firewalls, SSL/TLS, IAM/RBAC), implement IaC (Terraform), and streamline CI/CD for fast, safe deployments
• Scale our platform as we expand across the UK, US, Canada and Germany—capacity planning, horizontal scaling, data partitioning, and resilience (HA, backups, disaster recovery)
• Instrument the stack end-to-end (logs, metrics, traces) and improve reliability with SLOs, runbooks, and alerting; drive incident response and post-mortems
• Collaborate across the stack with firmware, app, and frontend engineers to plan, produce, test, and deploy new capabilities (device ↔ backend ↔ dashboard)
• Develop data models, visualisations, and analytics for flood warnings and predictive alerts—turning raw sensor data into actionable insights for clients
• Automate and optimise workflows: testing, data pipelines, release processes, and developer tooling (including Gen AI) to boost team velocity and quality
• Balance speed and quality, focusing on tangible outcomes while maintaining high engineering standards and documentation
• Work shoulder-to-shoulder with the CEO and engineering team on system-level design and end-to-end architecture as we scale rapidly and robustly

• Application submission via Welcome to the Jungle before 23:59 on Sun 19th Oct (reviewed on rolling basis)
• Respond to initial screening questions sent via Welcome to the Jungle by 11:59 on Tuesday 21st Oct (sent out on a rolling basis)
• Technical screening (remote) with Full-Stack Engineer (60 mins) (rolling basis)
• Final interviews (in person) with engineering team/HR/CEO (full-stack system design assessment 45 mins, cultural fit 2x45 mins) (rolling basis)