> Markdown version of [/jobs/ext/2815982-senior-backend-engineer](https://www.wearedevelopers.com/jobs/ext/2815982-senior-backend-engineer). Every page supports `.md` or `Accept: text/markdown`. Links point to the HTML versions so they work for humans too. Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Senior Backend Engineer - **Company:** beqom - **Location:** Manchester, UK - **Experience:** Expert - **Contract:** Permanent contract - **Skills:** .NET Framework, Application Programming Interfaces (APIs), Artificial Intelligence, Data Analysis, Microsoft Azure, Big Data, C Sharp (Programming Language), Software as a Service, Code Coverage, Code Review, Command-Query Responsibility Segregation (Software Development), Data Architecture, Data Infrastructure, Digital Architecture, PostgreSQL, Load Testing, Operational Databases, Query Optimization, RabbitMQ, Standard Sql, SQL Databases, Strategies of Testing, Data Ingestion, Large Language Models, Multi-Agent Systems, Backend, Build Management, Microsoft Fabric, Integration Tests, Debezium, Kubernetes, Apache Kafka, Functional Programming, Docker - **Published:** September 10, 2026 - **Apply:** https://www.collegerecruiter.com/job/2860993832-senior-backend-engineer ## About the Role * Demonstrated senior-level experience building production backend services with .NET/C#. * Strong SQL and PostgreSQL skills: schema design and query optimisation. * Proven performance and memory awareness - streaming vs. buffering, profiling and load-testing skills - and the ability to judge whether AI-generated solutions meet performance and scalability needs. * Track record of shipping features that are complete and stable, backed by strong test discipline. * Experience with multi-tenant SaaS architectures. * Deep, daily experience with AI-driven development - Claude Code strongly preferred - including multi-agent orchestration, building custom skills and sub-agents, and structuring codebases and context for effective agent work. * Experience turning requirements into precise, agent-executable specifications, and reviewing AI output at the feature level: spotting hallucinations, architectural drift, and security issues. * Excellent written communication: design docs, specifications, PR descriptions, and commit history that both humans and agents can act on. Bonus points if you have * Experience building MCP servers or exposing internal APIs as agent-callable tools. * Experience with LLM evaluation: eval suites, behavioural test design, or benchmarking agent workflows. * Functional programming in C# (LanguageExt - Either/Option patterns). * CDC/event-driven ingestion (Debezium, Kafka) or lakehouse exposure (Microsoft Fabric). * Azure services, Docker, Kubernetes/Helm. * Familiarity with compensation, HR, or pay transparency domains. ## Description We are looking for a Senior Backend Engineer to join our Data Platform Core team, which owns the services at the heart of beqom's data architecture - multi-tenant data ingestion, schema management, snapshots, calculated fields, and the data contracts powering analytics and reporting across the product. You will collaborate closely with Data Platform and Analytics engineers, Support teams, and Product stakeholders. We are an AI-first engineering team - Claude Code, agent orchestration, and automated review workflows are how we build by default, and we expect you to help push that practice further., + Design and build features across multi-tenant data platform services: data ingestion, schema management, effective dating, snapshots, calculated fields, and exports. + Work hands-on with .NET 8/C#, PostgreSQL, EF Core, Dapper, MediatR (CQRS), and RabbitMQ (MassTransit) event-driven workflows. + Optimise performance-critical paths: bulk ingestion, large data exports, memory-efficient streaming, and complex SQL. * Agentic Development + Deliver most of your output through AI agents: decompose features into well-structured specifications, run parallel agent sessions, and review outcomes critically before they ship. + Build and maintain the team's agentic tooling: custom Claude Code skills and sub-agents, MCP tools exposing internal APIs, prompt/context conventions (CLAUDE.md), and automated review pipelines. + Design the verification that makes agent speed safe: test strategy, quality gates, and evals that catch hallucinated APIs, subtle logic errors, and performance regressions in generated code. * Quality & Collaboration + Investigate and resolve production data issues in collaboration with Support and Engineering. + Maintain strong test coverage: unit and integration tests. + Improve observability (OpenTelemetry) and operational stability. + Document architecture decisions and write clear, actionable PRs and commit messages. + Mentor other engineers - in backend craft and in effective agent-driven development - and raise the bar in code reviews. ## Related Videos - [Python-Based Data Streaming Pipelines Within Minutes](https://www.wearedevelopers.com/videos/1233-python-based-data-streaming-pipelines-within-minutes) - [Developing the Backend with Stefan Lingler, CTO at Shpock](https://www.wearedevelopers.com/videos/100360-developing-the-backend-with-stefan-lingler-cto-at-shpock) - [Docker Compose: Rediscovered](https://www.wearedevelopers.com/videos/1978-docker-compose-rediscovered) - [Agentic AI - From Theory to Practice: Developing Multi-Agent AI Systems on Azure](https://www.wearedevelopers.com/videos/1532-agentic-ai-from-theory-to-practice-developing-multi-agent-ai-systems-on-azure) - [Nest.js - TypeScript in the backend can also be clean](https://www.wearedevelopers.com/videos/1033-nest-js-typescript-in-the-backend-can-also-be-clean) - [Postgres in the Age of AI (and Devin)](https://www.wearedevelopers.com/videos/1042-postgres-in-the-age-of-ai-and-devin) ## Related Articles - [Dev Digest 121 - AI goes offline](https://www.wearedevelopers.com/magazine/456-dev-digest-121-ai-goes-offline) - [How We Built a Worry-Free System That Runs for 10+ Years – And What We’d Do Again](https://www.wearedevelopers.com/magazine/751-how-we-built-a-worry-free-system-that-runs-for-10-years-and-what-we-d-do-again) - [Dev Digest 120 - Apple and peers](https://www.wearedevelopers.com/magazine/455-dev-digest-120-apple-and-peers) - [Everything a Developer Needs to Know About MCP with Neo4j](https://www.wearedevelopers.com/magazine/604-everything-a-developer-needs-to-know-about-mcp-with-neo4j) - [From Prototype to Production: Build AI Agents with This Free 4-Course Learning Path](https://www.wearedevelopers.com/magazine/655-from-prototype-to-production-build-ai-agents-with-this-free-4-course-learning-path) - [Dev Digest 132 - Binging WADFlix?](https://www.wearedevelopers.com/magazine/473-dev-digest-132-binging-wadflix)