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# Backend Engineer (Mid/Senior), Maps

- **Company:** Wheely
- **Location:** London, UK
- **Experience:** Experienced
- **Salary:** £101,547.0
- **Contract:** Permanent contract
- **Skills:** Clean Code Principles, Geographic Information Systems, Amazon Web Services, C++ (Programming Language), Continuous Integration, Global Positioning Systems (GPS), Python (Programming Language), PostgreSQL, Message Broker, MongoDB, Routing, NoSQL, RabbitMQ, Redis, Ruby, Backend, Kubernetes, Apache Kafka, Terraform, Grpc, Microservices
- **Published:** October 10, 2026
- **Apply:** https://www.adzuna.co.uk/jobs/details/5921897564

## About the Role

* 3+ years of experience (5+ years for seniors) building and maintaining scalable backend services.
 * We use Go. If you know it, great. If not, we'll interview you in your strongest language (Python, C++, Ruby, etc.). We hire for engineering fundamentals, not syntax.
 * In-depth knowledge of relational and NoSQL databases (PostgreSQL, MongoDB, Redis) and experience with message brokers like RabbitMQ or Kafka.
 * At least 1 year of hands-on experience with mapping-related work such as processing noisy geospatial data, map-matching techniques, or road network graphs and routing algorithms.
 * Upper-Intermediate (B2) English proficiency or higher. You should be comfortable debating technical trade-offs with your peers.

Nice To Have

 * Driver-side intuition for navigation systems (rerouting behavior, GPS drift, missed turns, real-world edge cases).
 * Experience with routing engines like OSRM.
 * Proficiency in C++.
 * Familiarity with open geospatial datasets such as OpenStreetMap.

## Description

Our Mapping team tackles the spatial intelligence of the platform: road matching, low-latency ETA predictions, and processing thousands of coordinates every second to ensure every journey is accurately tracked.

We're looking for a Mid/Senior Backend Engineer to join a team that keeps frameworks lean and focuses on what matters: clean, maintainable code, shipped fast with TDD, DDD, and continuous integration and delivery.

We are a Go shop, and while we're busy migrating away from our Ruby monolith, our stack includes PostgreSQL, MongoDB, RabbitMQ, Redis, gRPC, and Thrift. Everything runs on AWS and Kubernetes, managed via Terraform.

Our interview process includes a recruiter screen, algorithms and live coding. Senior+ candidates also complete a system design section and a structured review of past experience and achievements.
Responsibilities

 * Write high-quality, performant code primarily in Go.
 * Implement new microservices while helping us responsibly manage and migrate away from legacy services.
 * Work closely with product managers, designers, and data scientists to turn abstract requirements into concrete technical designs.
 * Ensure our systems stay responsive under heavy load, optimising for both latency and reliability.