Back end developer jobs in Harpenden - Page 8Create job alerts

Job Title: Software Engineer - Backend. This is a generalist mid-level backend position within the Ads Organization. Engage in the team's organizational processes, such as planning, backlog refinement, and sprint reviews, to ensure effective collaboration and feedback.

It is now one of the UK’s most loved ticketing services, selling tickets for tens of thousands of events throughout the UK, from independent club nights to 60,000‑capacity festivals. Skiddle currently sells tickets for the likes of The Warehouse Project, Creamfields, Digbeth Dining Club and Live

Java Back-end Developer with Azure/AWS.

Build and maintain backend services using FastAPI and Python for geometry, simulation, and data workflows. This company is a spin‑out from one of the UK’s most successful start‑ups, built by top‑tier engineers and developers from industry‑leading teams.

As a result of acquiring a major new customer, we need a Back-End Developer to help us deliver a multi-year project.

Tech Developer mind – ready and eager to learn.

Design and optimise APIs and backend infrastructure for seamless front-end and AI integration. You are a strong backend developer who thrives in a fast-paced, collaborative environment. Sign in to set job alerts for “Back End Developer” roles.

Back-End Developer (Python) - London - 3 days per week in office - Med-Tech - up to £85,000 p/a. The are looking for a Senior Python Developer who will be responsible for designing and building core back-end services in Python that power the platform. Design and build core back-end services in Pyth

Senior Back‑End Developer (PHP/Laravel) – AWS – Leeds/Hybrid.

We are seeking a highly skilled Senior Backend Web Developer with expertise across multiple backend technologies such as Python,. In this role, you will architect, build, and maintain robust backend systems while also providing mentorship and technical leadership to a team of junior developers. Seni

We are seeking an experienced Senior Backend Developer with a proven background in building high-volume, scalable services. If you are an SC Cleared Backend Developer with the required skills, please apply now with your latest CV. Get notified about new Back End Developer jobs in.

As a Back End Developer you will analyse software requirements to define and document REST API endpoints, develop and implement secure REST API endpoints using modern. Develop and implement secure REST API endpoints using modern. Understanding of front‑end build tools such as Vite, NPM (Essential)

Backend Developer - PHP, Laravel. Due to an ongoing data-centric project, they are looking for an experienced PHP / Laravel Backend Developer to join for an initial 6-month contract (with potential extension) to help build and optimize data infrastructure behind their business intelligence and analy

A leading digital intelligence company is seeking a Back End Developer in the UK to analyze requirements and develop secure REST APIs using modern. Join a diverse team committed to defending clients in the cyber defense industry.

Futureheads have exclusively partnered with a high‑growth FinTech building institutional infrastructure for digital assets, and we are looking for a Senior Back End Developer to join their team. This is a hands‑on leadership position where you’ll work closely alongside the Business Owner and t

We are seeking an experienced BI Developer to join our client’s data team. Perform data analysis to identify trends, patterns, and insights to support business decisions. Provide training and support to end-users on BI tools and reporting processes.

Back End Developer - Must have an Active DV Clearance - Hybrid. We are seeking a skilled and motivated Back End Developer to support the digital transformation of Defence services. You'll work with cross‑functional teams including front‑end developers, UX specialists, architects and stakeholders

As a Backend Developer at CleanCloud, you will work primarily with PHP and Symfony to build robust APIs, optimise database performance, and ship new features used by millions of end‑users globally. Back End Developer (PHP / Symfony). Analyzing and improving MySQL queries and backend logic for high

Full stack developer with Front- or Back- end specialization (Mid level, based in SA) – Join to apply for the Full stack developer with Front- or Back- end specialization (Mid level, based in SA) role at Dealstack. Full stack developer with Front- or Back- end specialization. Interested in working

Collaborate with frontend and product engineers to ensure backend contracts remain predictable and type-safe across Inertia and API boundaries. As Senior Back-End Developer, you will work on a Laravel codebase that’s built around clear boundaries, event-driven architecture, and high observability.

Experience designing and integrating backend APIs and collaborating with cross‑functional platform and product teams. Familiarity with CI/CD pipelines, automated testing, and safe deployment strategies for backend services. Background in building developer tools or improving engineering productivi

Back End Developer - New cutting edge AI product. Design, implement and maintain Back End services and APIs in a microservices architecture.

What we expect from the Backend Developer:. You’ll work closely with the Frontend team to deliver seamless user experiences, translating backend systems into something people can trust. Develop backend services in Node.

The Back End Developer will be responsible for developing server-side logic, maintaining and optimising databases, and ensuring high performance and responsiveness to requests from the front-end. This is a full-time remote role for a Back End Developer. They will work closely with front-end develope

We at The Big Phone Store are expanding and we are looking for more experienced Back End Developers to join our growing team. Collaborate with our front-end developers to integrate user-facing elements. We have so many in house systems and so many exciting projects in the pipeline and we are looking

Direct message the job poster from RemoteStar.UK-based client, a leading cybersecurity company dedicated to risk mitigation and management.Led by experts in information security and high-growth enterprises, the client builds solutions to combat evolving cyber threats.APIs, enhancing data feeds, and

Our platform offers advanced features such as end-to-end encryption, geofencing, and continuous facial recognition, which verifies not just the device but also the individual user for unparalleled security. The ideal candidate will be responsible for designing, developing, and maintaining robust, sc

Location: London (x3 days a week onsite).We are looking for a passionate Senior Java Engineer in London to lead the design and development of core product features and services that power an app used by thousands of travellers on a daily basis.As a Senior Java Engineer for an loyalty program team, y

They’re hiring a Back End Developer who can take real ownership and hit the ground running. For this Back End Developer role, you’ll need:. Strong, Back End development skills using PHP, Node and any Python experience will be a bonus.

As a Senior Back-End Developer, you will play a key role in designing, developing, and maintaining the back-end of a complex microservices architecture. Collaborate closely with cross-functional teams including Product Owners, Business Analysts, Scrum Masters, and front-end and back-end developers.

If you have not had feedback from our consultants within 14 days, please accept that your application has not been successful.

Collaborate closely with product, mobile, platform, and other backend engineers. Strong experience building and maintaining production backend systems in Golang. They are seeking a Senior Backend Engineer with strong technical judgment, a high sense of ownership, and the ability to drive work forwar

As a Back End Developer You Will. Develop and implement secure REST API endpoints using modern. Understanding of front-end build tools such as Vite, NPM; (Essential).

Joining a small, agile team that powers real‑world experiences for customers worldwide, the project is fast‑paced and requires independent ownership of complex backend challenges. Backend Software Engineer (Node. We’re looking for an experienced Backend Software Engineer to join on a 6-8 week

As a Back-End Developer, youll work closely with cross-functional teams to build and maintain API-driven back-end systems that power the entire platform. API and supporting back-end systems. Collaborate with front-end and mobile developers to design and deliver scalable features.

Backed by top-tier Silicon Valley investors, they’re reimagining how modern markets should operate — and they’re looking for a founding engineer to shape the core architecture from day one. This is a rare chance to join a technical founding team with backgrounds in quant trading, HFT, and worl

Front End / Back End Web Developer – South East England, Berkshire. Frontend Developers work in highly motivated teams, committed to delivering valuable applications and services to customers. Work within an Agile team to develop back-end applications and features to meet customer/project requirem

Strong backend engineering background with C# and/or Python. If you are a backend engineer who enjoys variety, working with modern cloud technologies, and collaborating directly with stakeholders to bring ideas to life, apply today. Backend Software Engineer – Digital Solutions.

O Associates are working closely with a leading Defence & National Security supplier in their search for a Data Engineer / Back End Developer to join the growing team on a contract basis.

Due to continued success and expansion, we're seeking a talented Backend Developer to join our development team. A developer who takes genuine pride in their code quality, can work with unstructured customer feedback to define technical requirements, and understands that great user experience someti

The role is backend‑led with full‑stack exposure and a strong focus on modern engineering practices, including the use of AI‑enabled solutions. Design, develop, and maintain backend services using. This role requires prior experience working in government environments and strong expertise in P

You’ll be responsible for key backend systems that support enterprise, multi-user workflows, with a strong focus on scalability, security, and reliability. Build and maintain secure, multi-user backend services.

Design and build robust REST APIs and backend systems (Python/FastAPI).

NET Backend Developer, you will build secure, scalable backend services and cloud‑native applications using. Ready to utilize your experience and expertise in Dot Net Development? We have an exciting role for you – Dot Net Backend Developer. We welcome and embrace diversity in race, nationality,

As a Backend Software Engineer, you'll collaborate with a close-knit team to build and maintain the backend platforms that power social impact initiatives. Write and test clean, maintainable backend code using Node. Build backend platforms that generate real social impact globally.

Get notified about new Back End Developer jobs in. Build and maintain backend services using FastAPI and Python for geometry, simulation, and data workflows. Back-End Engineer - London - Up to £115,000 Starting Base + Exceptional Bonuses/Benefits.

Additional keywords: back end, developer, C# development, azure, IT, software, DevOps. Product Development team at Summit, you will be responsible for the back-end development of our market-leading, proprietary technology solutions for retailers. Define and implement new back-end solutions.

Strong experience working as a Backend Developer. Get notified about new Back End Developer jobs in England, United Kingdom. My client a global cloud security innovation leader is looking for an experienced Backend Engineer to join their UK based team.