Backend Engineer

• Contribute to the development of The Grid platform
• Collaborate with engineers on various projects
• Solve complex problems in robotics and software engineering
• Work on manufacturing execution systems and internal tooling

Haskell Engineer

• Build the core backend services: Design, implement, test, and operate first services for context ingestion and storage
• Create a scalable SaaS foundation: Define and build architecture for a multi-tenant service
• Power agent-facing retrieval workflows: Build APIs and service interfaces for AI agents
• Work across product and infrastructure: Make tradeoffs between fast experimentation and long-term reliability
• Operate what you build: Instrument services with metrics and improve reliability
• Contribute to technical direction: Shape architecture and engineering practices for a new product area
• Effective communication: Work in a highly dynamic and collaborative environment
• Ownership and impact: Take full ownership of AI solutions ensuring they are scalable and aligned with real user workflows.

Staff Backend Engineer – Grafana

• Work on both sides of the API developing the client SDK and contributing to the migration of our server technology.
• Ensure that Element's next generation of clients and servers are fast, reliable and a joy to use.
• Work with our passionate and engaged open-source community.

Rust Engineer

• Design, build, and operate production backend services using Rust and other strongly engineered backend technologies.
• Own backend components from design through deployment, observability, incident learning, and ongoing maintenance.
• Modernize existing systems incrementally, reducing technical debt while protecting reliability and business continuity.
• Develop clean, maintainable, production-grade code with strong attention to correctness, testability, performance, and operational behavior.
• Debug complex production and pre-production issues across services, data flows, infrastructure, and deployment pipelines.
• Define practical service boundaries, API contracts, data models, and integration patterns that support long-term maintainability.
• Improve reliability, observability, monitoring, alerting, and deployment workflows for backend systems.
• Use AI-assisted and agentic coding tools to accelerate exploration, implementation, testing, debugging, and documentation while remaining accountable for final quality.
• Collaborate with frontend, product, infrastructure, security, and operations partners to deliver complete and reliable product capabilities.
• Evaluate architectural options and communicate trade-offs clearly to technical and non-technical stakeholders.
• Contribute to code reviews, design reviews, documentation, and engineering practices that raise the quality of the team.
• Identify risks, simplify complex technical problems, and make pragmatic decisions in ambiguous situations.

Senior Backend Engineer, Rust

• Interpret, define, and develop software solutions based on written requirements and technical specifications.
• Identify opportunities for improvement in existing products and implement enhancements across the platform.
• Troubleshoot, test, and maintain core applications and databases to ensure performance, reliability, and scalability.
• Collaborate with QA to define acceptance criteria and assist with debugging and issue resolution.
• Contribute to the creation and upkeep of comprehensive technical documentation.
• Write clean, maintainable, and well-structured code that adheres to established coding standards and best practices.
• Work effectively within globally distributed, cross-functional teams.
• Participate in mentoring, coaching, and knowledge-sharing initiatives to support team development.

Senior Backend Engineer, PHP

• Analyze existing SQL Server schema, stored procedures, indexes, and relationships. Identify performance bottlenecks, frequent locking/blocking issues, and inefficient query patterns.
• Refactor and optimize poorly written SQL queries and stored procedures.
• Educate developers on writing performant SQL and best practices.
• Rationalize and refactor redundant or obsolete stored procedures and tables.
• Simplify overly complex joins and table relationships.
• Implement and monitor indexing strategies, query plans, and partitioning as needed.
• Use tools like SQL Profiler, Extended Events, and DMVs for diagnostics.
• Define and implement database standards and governance procedures.
• Contribute to database documentation and change management protocols.

Database Administrator

• Design and maintain scalable, high‑availability applications using C#/.NET
• Build RESTful APIs and microservices that integrate across the organisation
• Work closely with business and product teams to understand requirements and deliver quality solutions
• Support the integration of AI tools, components, and services into .NET applications
• Help evaluate new technologies, including AI platforms and engineering tools
• Participate in Communities of Practice and internal knowledge‑sharing sessions
• Collaborate with Engineering and Platform teams to ensure data pipelines and infrastructure support .NET and AI workloads
• Contribute to cultural initiatives that encourage engineering excellence, AI literacy, and innovation

.NET Developer, AI Projects

• Design and build distributed, real-time streaming components within a Flink-based architecture
• Develop and maintain services that process the full bet lifecycle, from acceptance through settlement, cancellation, and cashout
• Implement complex financial calculations, including multi-bet and bet-builder logic, ensuring accuracy and consistency at scale
• Build systems that aggregate exposure and generate real-time risk insights across outcomes, markets, and customers
• Contribute to a granular alerting framework that detects and publishes meaningful changes in liability
• Ensure correctness in a high-throughput environment through robust handling of ordering, duplication, and idempotency
• Optimise streaming jobs for latency, throughput, and resource efficiency
• Collaborate closely with trading and product teams to translate domain requirements into scalable, reliable systems
• Contribute to a modular architecture where components evolve independently and scale with increasing demand

Senior Software Engineer, Java

• Design and build flow components and agentic flows in the Flow Registry using Python and LangGraph.
• Develop, ship, and maintain backend features for GitLab Duo Chat across the Python Duo Workflow Service and the GitLab Rails monolith.
• Integrate new generative AI models, providers, tools, and multi-agent orchestration patterns into Duo Chat.
• Design, implement, and review GraphQL and REST application programming interfaces (APIs) and related monolith logic.
• Improve debugging, observability, and test coverage using pytest, RSpec, and related frameworks.
• Collaborate with Product, User Experience (UX), frontend, and AI specialists to refine requirements.
• Document standards, patterns, and learnings with other engineers.
• Participate in Tier 2 on-call rotations to troubleshoot production issues.

Senior Backend Engineer, AI Engineering

• Develop, debug, test, document, and deploy software enhancements aligned with the Software Development Strategy.
• Design and implement modern single‑page applications using React and TypeScript.
• Consume and integrate with REST APIs, maintaining clean separation from backend and legacy systems.
• Support delivery commitments across projects and releases.
• Contribute to the continuous validation and maintenance of the build and deployment pipeline, identifying issues, supporting fixes, and working with the wider team to ensure reliable build, test, and deployment processes.
• Investigate, identify, and mitigate software and system issues.
• Collaborate closely with backend and test engineers to ensure end‑to‑end quality.
• Work with senior engineers to design UI solutions based on user needs and system constraints.
• Produce clear technical documentation and maintain readable, well‑structured code.
• Participate fully in the Agile software development lifecycle.
• Use tooling such as Bitbucket, Jira, Jenkins, and Confluence to manage code, work items, and builds.
• Write and maintain unit and integration tests as part of normal delivery.
• Contribute to and support UI and API test automation efforts.
• Communicate progress, risks, and technical decisions clearly to stakeholders.
• Apply engineering best practices and standard operating procedures.
• Influence technical decisions through clear, evidence‑based recommendations.

Java Software Engineer

• Write Code Daily: Spend 50%+ of your time building scalable solutions with Node.js, Vue.js, PostgreSQL, and AWS.
• Leverage AI extensively: Create AI processes used across the company to accelerate delivery and increase quality.
• Solve Real Problems: From mobile apps to enterprise workflow automation — our users build things that matter.
• Guide the Team: Lead a team of 7 engineers and QA professionals, shaping architectural decisions, reviewing code, and driving best practices.
• Improve Our Platform: Help make Fliplet faster, smarter and more secure. You’ll work closely with Product, Design, Customer Success, and senior leadership — helping translate market demand into elegant, scalable code.

Technical Team Lead – Hands-On, AI, Node.js, AWS

• Build, maintain and scale platform-level back-end services to enhance and serve our core products.
• Leverage these capabilities to build and ship new features within the core Arbor product suite.
• Own the successful delivery of high-impact features, directly contributing to the advancement of Arbor products.
• Drive the development and implementation of advanced tests for new and existing features, ensuring high test coverage and reliability standards.
• Proactively identify, take ownership of, and resolve critical system bugs and issues using advanced problem-solving skills and comprehensive system knowledge.
• Maintain high code quality standards through thorough, constructive code reviews, ensuring solutions are well-tested, scalable, and maintainable.
• Produce well-architected, efficient, and scalable code by applying industry-leading design patterns and methodologies.
• Create and maintain thorough technical documentation and diagrams that promote best practices and ensure clear communication.
• Collaborate closely with the Engineering Manager, Tech Lead, QA Engineer, and Product Manager to address feature requests.
• Support the Engineering Manager with interviews, scrum ceremonies, and the implementation of strategies to improve and optimise product quality and lead time, demonstrating a comprehensive understanding of the development lifecycle and processes.
• Support the Tech Lead in developing technical roadmap solution designs, identifying areas for improvement, prioritising, and executing technical debt reduction.
• Act as a role model for technical excellence through code reviews, pair programming, and actively mentoring and coaching mid-level and junior engineers in best practices, fostering knowledge transfer within the team.
• Actively lead and participate in tech talks, workshops, and team-based learning initiatives.

Senior Python Engineer, PHP

• Help us build and refine critical paths, enhancing the key flows that keep a system of hundreds of thousands of OCPI charging sessions, locations and receipts running smoothly.
• Influence the evolution of our highly complex Tariffs & Pricing logic, improving our discounts and price offering for our customers.
• Enable us to build quickly but robustly, using best practices in observability, data analysis and defensive programming, allowing us to safely scale our CPO integrations globally.
• Work with cross-functional stakeholders to break down complex problems, understand feasibility, and propose creative technical solutions that deliver a market-leading product.

Software Engineer, Backend, Python

• Provide technical leadership for GTI's core SaaS platform.
• Own the technical direction, architecture and engineering standards of the platform without direct line management responsibility.
• Work closely with Product, Data, Operations, DevOps and QA teams to deliver secure, resilient and scalable solutions while mentoring engineers through technical leadership and best practices.

Principal Java Engineer

• Investigate and resolve data quality issues across multiple systems
• Develop ETL processes, data migrations and reconciliation solutions to ensure data integrity
• Contribute to database design, performance, security, backup and compliance standards
• Work within the SDLC using Git source control, JIRA and CI/CD pipelines
• Manage database access, security and availability requirements
• Use AI-assisted development tools

Database Developer

• Execute database migrations with enterprise and Private Cloud customers.
• Assume ownership of the PlanetScale relationship and migration work.
• Productise repeatable migration patterns.
• Automate recurring migration requests.
• Own broader app and service migrations in the gaps.
• Distribute what you learn.
• Keep the database offering competitive.

Database Migrations Engineer

• Investigate, diagnose, and resolve live system defects and production incidents in line with SLAs.
• Analyse logs, metrics, and traces to identify root causes of complex technical issues.
• Design, develop, and deploy stable, well-tested fixes using Java and related frameworks.
• Collaborate with 2nd Line (AMS) Operations, QA, and Feature Teams as appropriate to triage and prioritise defects.
• Implement hotfixes and patches to production environments safely, following change management protocols.
• Support post-incident reviews, contributing to preventative actions and service improvement.
• Maintain clear documentation of incident investigations, defect resolutions, and code changes.
• Monitor system health and performance using existing observability and alerting tools.
• Contribute to improving the reliability and maintainability of backend systems and services.
• Provide technical expertise and mentoring in diagnosing and resolving backend issues.

BE Java Developer

• Responsible for developing high quality solutions which delight our customers and impact the lives of users worldwide.
• Make sound, reasoned decisions in a fast-paced environment.
• Mentor colleagues while learning about new technologies and approaches.

• Build backend services, APIs and workflows for the AI Neobank app.
• Support products across insurance, payments, wallet, savings, investing, travel and financial services.
• Design reliable systems for user accounts, transactions, partner integrations, reconciliation, notifications and operations.
• Work with product and mobile teams to ship customer-facing journeys quickly.
• Integrate with banks, payment gateways, insurers, data providers and other partners.
• Improve system reliability, observability, security and performance.
• Build systems that are practical, auditable and ready for regulated financial products.

Backend Software Engineer – AI Neobank App

• Build backend services and APIs for onboarding, accounts, payments, cards, transfers, rewards, travel, FX, KYC and risk flows.
• Design reliable systems that can support real customer transactions, operational workflows and future financial products.
• Integrate with internal systems, financial partners, payment providers, AI services and third-party platforms.
• Own backend quality across reliability, security, latency, observability, data integrity and incident handling.
• Work with product, frontend, mobile and AI teams to launch features quickly and safely.
• Improve existing systems by simplifying flows, removing manual work and automating repeatable processes.

Backend Engineer jobs in United Kingdom

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Haskell Engineer

Staff Backend Engineer – Grafana

Rust Engineer

Senior Backend Engineer, Rust

Senior Backend Engineer, PHP

Database Administrator

.NET Developer, AI Projects

Senior Software Engineer, Java

Senior Backend Engineer, AI Engineering

Java Software Engineer

Technical Team Lead – Hands-On, AI, Node.js, AWS

Senior Python Engineer, PHP

Software Engineer, Backend, Python

Principal Java Engineer

Database Developer

Database Migrations Engineer

BE Java Developer

Senior Software Engineer, Java

Backend Software Engineer – AI Neobank App

Backend Developer