12 of 12 Permanent Senior Backend Developer Jobs in the UK

backend developer who's just as comfortable in a Kubernetes cluster as you are in a PHP codebase, and fancies Friday afternoons off? We're looking for a Senior Backend Developer to join our growing digital team, taking on real ownership of our backend … rather than reporting up through layers of process. You'll report to our Head of Delivery and work closely with the rest of the backend team, but this is an individual contributor role with no direct reports. If you're comfortable in modern PHP, properly comfortable ...

BetStarters is seeking a Senior Backend Developer to design and implement robust backend systems powering our iGaming platform. The role focuses on scalable architectures, performance optimisations, and reliable services that underpin real-time gaming experiences. The ideal candidate will contribute to system design, code quality ...

some of the world's leading organisations in the energy sector. As the business continues to grow, they're looking to appoint a Senior Java Backend Developer to join their highly experienced engineering team. This is an opportunity to work on genuinely challenging software rather than high … volume transactional systems. You'll be building scalable backend services and APIs that process large volumes of engineering data, helping transform complex information into meaningful, real-world solutions. Working alongside experienced software engineers, you'll contribute to architecture, influence technical decisions and help shape the future of a market ...

CTDI is looking for a Senior Backend PHP Developer to work on developing a Greenfield backend REST API for the transport industry. This contract offers £500 per day for 12 months, with the option to work remotely. You will collaborate closely with a Senior ...

looking for a Senior PHP Developer to join a growing digital team, working across a mix of existing client projects and brand-new, greenfield builds. This is a role for someone who enjoys getting properly stuck in, contributing ideas, solving real problems, and building solid, well-thought … business Collaborating with designers, developers and stakeholders to deliver clean, scalable solutions Why you'll be a great fit You're a Senior PHP Developer who enjoys writing clean code, learning new things, and being part of a team that values collaboration over ego. What you'll bring ...

looking for a Senior Backend Platform Developer to build modern services for the company's contact center systems. This is a software engineering role first: where you will design APIs, serverless services, data flows, observability tooling, and AI-enabled workflows that support our customer and agent experience. … telephony and contact center workflows onto modern platforms, with enough design discipline to support future scale. What We're Looking For 5+ years of backend software engineering experience, ideally with Node.js or TypeScript. Strong API design, system architecture, integration, debugging, and asynchronous systems experience. Hands-on experience with ...

hiring a hands‐on Backend Developer to build and ship production serverless services for a fintech platform. Languages: TypeScript, Node.js (18–22) AWS: Lambda, DynamoDB, S3, SQS, EventBridge, Step Functions Frameworks/middleware: Serverless Framework, Middy Libraries: Zod (schemas/validation), Winston (logging), AWS X‐Ray (tracing), Luxon … protect releases (Mocha/Sinon), keep quality bars high, and reduce regressions. We’re ready to meet you, if... You have strong hands‐on backend engineering experience in TypeScript/Node.js. You have real AWS production experience — not “used Lambda once”, but built, operated, debugged, and fixed systems ...

Ltd. is seeking a Senior Software Developer to help build reliable, scalable billing and commerce systems. You will join a tight-knit team and own substantial backend components from day one, collaborating with engineers, product, finance, and operations. The role is remote with flexible hours. The stack ...

13+ billion. For more information on how we process your personal data, please refer to HCLTech’ s Candidate Data Privacy Notice. Role : Senior Vendor Software Engineer (Kotlin) DB require two senior, experienced Kotlin engineers to support and extend a cloud‐hosted platform used for bookbuilding issuances across Investment … working closely as a team to maintain a high standard of code quality and system reliability. Location: London Required Skills • Strong commercial experience building backend services in Kotlin • Deep experience with XP practices, including: Mob programming as a primary way of working Test‐driven development (TDD) Continuous refactoring ...

Jobtailor in the United Kingdom seeks a skilled Java Spring Boot developer to migrate and rebuild core architecture, design robust connectors for global channels, and optimize the catalog publication flow. You will translate legacy business rules into reliable BCP assets and ensure real-time stock and price synchronization. ...

remediation, advancing AI from assisted analysis toward closed-loop resolution; Architect and optimize large-scale distributed systems to continuously improve throughput, reliability, observability, and developer experience. Work closely with engineering, security, infrastructure, and AI business teams to understand real-world requirements and drive complex projects from design to adoption … Minimum Qualifications: Bachelor's degree or higher in Computer Science or a related field, with experience in designing, building, and continuously evolving large-scale backend systems; Proficiency in one or more programming languages, such as Go, Java, C++, Python, or Rust, with strong computer science fundamentals, sound coding practices ...

company. If you’re excited about building something special with us, we’d love to hear from you. About the role We're seeking Senior Python Developers to join our back-end development team. This is a varied and challenging programming role. Tasks could include writing code to manage … Technical Task or Presentation – A role-relevant exercise to demonstrate your skills and approach. Final On-site Interview – An in-person meeting with our senior leadership team and co-founders at our office. We strive to make the process clear, efficient, and respectful of your time. We welcome ...