Backend jobs in Witney - Page 4Create job alerts

Design, develop, test, and maintain secure, high-performance backend services using modern programming languages.

The Role As a Backend Engineer, you will play a key role in developing and scaling backend services that power a next-generation risk modelling platform. Backend Engineer (Python, FastAPI/Flask/DjangoGPU/CUDA) 📍 Bristol (Hybrid) 💰 £55,000 - £70,000 + Benefits 📝 P

As a Backend Software Engineer / SRE you will collaborate with development teams, as a trusted technical advisor to influence system design, ensuring reliability standards and driving improvements across the platform. Backend Software Engineer / SRE (Java JVM) London / WFH to £110k. Are you a Backe

We are looking for a Senior Backend Engineer to join our new Quantitative Sports team. As a Senior Engineer you will play a critical role in the development and maintenance of the backend aspects of the pricing system for our sportsbook and work alongside our quantitative analysts to deliver our in-

Compensation: Competitive, based on location and experience .Location: UK or Turkey (Hybrid – Office & Remote).Keepnet is an AI-driven SaaS platform experiencing strong, sustained growth in the UK with growing global momentum, helping organisations manage human cyber risk at scale.Keepnet runs

The role involves the design and development of backend services and infrastructure for Machine Learning workloads.

Senior Backend Engineer | Python, FastAPI & Scaling | Security SaaS. Senior Backend Engineer – High-Scale Systems | Python & FastAPI | Security SaaS. Senior Backend Engineer – High-Scale Systems | Python & FastAPI | Security SaaS.

Our backend tech stack is Spring Boot with Java/Kotlin/Groovy, MySQL and Opensearch, hosted on AWS. Our frontend is React with Typescript, and you will be expected to contribute small features to the frontend (though the role is at least 95% backend). You're an experienced engineer with multiple ye

Lead Java Backend EngineerHybrid - 2 days per week in Newcastle/LondonThis is an opportunity for a Lead Java Backend Engineer to shape the backend technical direction, bring teams together, and introduce modern engineering practices that support scalable, secure, and high-performing systems.

Software Architect Java - BackEnd, Back End Google Cloud (GCP)Contract: Until December 2026 - RenewableLocation: Essex Offices (located between Brentwood and Basildon) 4 days a weekRate: £600 per Day Inside IR35The finance and banking division of this engineering company and household name is se

A leading technology firm in the United Kingdom is looking for a Software Engineer to enhance client services and backend/frontend systems.

This role offers a 50/50 split between new development and maintaining existing systems, with a strong emphasis on SQL and backend technologies.

A leading technology firm is looking for a Software Engineer in London with 5-9 years of experience to join their engineering team.The ideal candidate will design, develop, and maintain scalable software systems using Python, collaborating with cross-functional teams.Key responsibilities include bui

A modern banking startup in the UK seeks an experienced Backend Engineer to enhance their technology products.

A dynamic technology startup in London is looking for a Product Engineer focused on the Backend. This role involves scaling and evolving backend infrastructure, designing APIs, and implementing AI capabilities.

In this role, you will collaborate with various teams to enhance the backend of their innovative financial services.

Mid/Senior/Staff) Backend Engineer – London.

Out of the successful launch of Chase in 2021, we're a new team, with a new mission.We're creating products that solve real world problems and put customers at the center - all in an environment that nurtures skills and helps you realize your potential.Our team is key to our success.We value collabo

A leading financial technology company is seeking a (Mid/Senior/Staff) Backend Engineer in London.

As a Backend Engineer on Stripe's Core Technology team, you'll build the financial infrastructure that powers the internet economy.

A leading tech firm in Greater London is seeking a Senior Software Engineer (Backend) to lead the development of their Charge Point Management System and customer-facing platforms.

As a Senior Backend Engineer at OpenAI London, you'll work on the systems that power some of the world's most advanced AI products.

A leading audio streaming service seeks an experienced backend engineer to design and build scalable systems for its internal commerce platform. The ideal candidate has over 5 years of experience in backend development, with proficiency in Python or Java, and is skilled in cloud platforms like GCP o

A tech company in the United Kingdom is seeking a Member of Technical Staff specializing in backend and infrastructure.

This role involves designing and building backend services and features for generative AI workloads. The ideal candidate will have experience with production backend systems, proficiency in Python, and expertise in frameworks like Flask and Next.

At TripleTen, we’re creating innovative learning products that empower people to master IT professions like software engineering, data science, business intelligence, and QA — no matter their prior experience.Our AI-driven and thoughtfully designed platform helps students build real skills and a

A technology company is looking for skilled backend developers to evolve its platform capabilities.

Our mission is to enable everyone to build wealth.We reinvent how trading and investing work by creating exceptional products people love.Fostering a culture of excellence and high velocity is the key to our success.Today, we serve over 5 million clients, with more than €30 billion in assets under

Build and maintain high-performance backend services with Node. Collaborate with Product, Design, and users to deliver reliable backend solutions. Strong experience building scalable APIs and high-traffic backend systems.

A leading software business in the security space is looking for a Staff Backend Engineer to join their UK team.

You're experienced in backend software engineering using PHP8+, GraphQL, REST, and MySQL.

A leading aerospace and defense company in Greater London is seeking a Principal Software Engineer to lead and develop crucial backend systems. The ideal candidate will have extensive experience in backend and frontend technologies, along with strong capabilities in DevOps practices.

A leading brand platform company in London is seeking a Senior Backend Engineer to join a collaborative team. Candidates should have strong experience in backend development with a focus on PHP, as well as a deep understanding of API design and relational databases.

The Senior Java Developer will be responsible for both backend and the introduction of innovations in new services, enjoying fully remote working options and a salary of up to £70K.

Backend Service Development with Node. Develop backend services using Node.

Java Backend Engineer (Fintech) - Permanent - London (Hybrid - 2 days a week) - £50 - 70k per annum. You will be responsible for designing and shipping production-grade Java backend services that ensure high availability, transaction integrity, and audit compliance. Experience: 3+ years of backend

A global information and analytics company seeks a Software Engineer III to develop Java-based backend services and implement Scala/Spark pipelines for metric computations.

This role involves taking ownership of backend systems, driving high-quality development, and mentoring fellow developers.

Our vision is to give everyone the belief they can make their move.We aim to make moving simpler, by giving everyone the best place to turn to and return to for access to the tools, expertise, trust and belief to make it happen.We’re home to the UK’s largest choice of properties and are the go-t

You will design and maintain backend services, work with modern technologies within microservices architecture, and mentor a growing team.

This role involves hands-on backend configuration within Niche RMS, requiring proven experience in configuring workflows and operational setups.

This role involves designing backend services to support AI-driven functionalities.

You will work mainly on the backend of a key platform, utilizing Python and ideally C#.

A fast-growing Series A fintech company in London is looking for a Principal Software Engineer with a focus on scaling backend systems. The ideal candidate will have over 8 years of experience in backend development, a strong background in Python and cloud infrastructure, and the ability to handle s

A leading data solutions provider in the United Kingdom is looking for a Senior Backend Engineer to design and build resilient backend services and APIs. This position requires at least 5 years of experience with Scala and Python, operating production backend systems.

A fast-growing fintech company in Central London is seeking a Lead Software Engineer to drive backend development in a hybrid work environment.

A modern travel tech company based in London is seeking a Travel Support Engineer (Backend) to create impactful and user-friendly tools.