Senior developer jobs in HarpendenCrear alertas

Do You Cry Tears of Joy When You See a Perfectly Centered Div?.Do You Think “Pixel-Perfect” Should Be a Legally Binding Contract?.If you answered yes to either of the above, keep reading.You might be my clients kind of crazy.It's a next-generation DeFi protocol, which is a fancy way of saying th

Senior Full Stack Developer / Engineer (TypeScript React Redux Node. Opportunity to progress your career in a senior, hands-on Full Stack Developer role at a scaling Fintech who have built an energy trading platform to revolutionise energy buying for large industrial and commercial users. As a Senio

Whether you’re refining our Azure architecture as CTO or shipping revenue‑critical features as Senior Dev, you’ll set high standards without reinventing the wheel. You might be our Senior Dev if….

Senior PHP Backend Engineer— High‑Performance FinTech.

Our client is a fast-growing SaaS company building web and mobile products used worldwide for organising, engagement, and field operations.They’re small, sharp, and engineering-led — shipping fast, solving real problems, and working in a genuinely collaborative environment.If you want real owner

We are looking for a Senior Engineer to establish and lead our new Developer Experience team. Background in Software Engineering, SRE or infrastructure engineering, with a strong developer tooling focus. Experience running developer surveys, DX metrics frameworks (e.

Applications will be reviewed in the New Year 🌟.Homeflow is a market-leading, fast-growing, profitable, software-as-a-service (SaaS) business in the property market.We think we’re a lovely team of people with a fantastic company culture that we want to retain as we grow - ambitious, hard-workin

To professionalise our product development and continue our growth path, we are currently looking for a senior backend developer. Senior backend skills with at least 5 years of experience with Java, and a good understanding of Python (FastAPI, Flask…), SQL based databases.

At BioTalent, we are working with a client to find their next Senior Full Stack Web Developer. Exposure to high visibility from the senior leadership team.

Senior Java Engineer Remote – £65k–£70k. As a Java Backend Developer, you’ll step into a role where each day brings both challenge and impact. Salary-wise, the successful Java developer will earn £65k–£70k, plus bi-annual bonuses, generous holidays and benefits, and participation in thei

Senior C++ Developer High-Performance Messaging Systems. This is a senior-level C++ role focused on performance, reliability, and scale, sitting at the heart of a globally distributed trading environment.

Our client is building a fastgrowing marketing platform and looking for a Senior Solutions Architect / Backend Developer to play a pivotal role in shaping the architecture of their next-generation platform.

SoftServe is a global team of thinkers and doers, who design and deliver cutting-edge digital solutions for top clients across numerous industries.We are about people who create bold things, make a difference, have fun, and love their work.Our client is a specialist UK bank founded to serve the need

Join a team where your ideas shape real-world solutions across aviation, defence, and the public sector, step into a role that gives you true autonomy and room to lead.This role offers the opportunity to lead the delivery of impactful software projects across civil aviation, defence, and public-sect

As a Senior C# Developer you will collaborate with a small, talented team to deliver the core platform within a Microsoft environment using the latest versions of C#. Senior C# Developer / Backend Software Engineer (C#. Are you a backend focused C# Developer with a strong academic background, lookin

Front End Developer, Web Developer, Software Engineer, Full Stack Developer. An excellent opportunity for a skilled Senior Front End Developer to join a growing software development environment, working on secure, large-scale web applications using modern JavaScript frameworks, SQL, and strong UI/UX

Are you an experienced developer with a passion for innovation and problem-solving? This is an exciting opportunity to join a global team delivering and supporting cutting-edge legal business applications for users worldwide. You'll work on pioneering projects in applications and analytics, while me

Lead Developer / Senior Full Stack Engineer.

Java developer with genuine legacy Java EE experience.

Senior Solutions Architect / Backend Developer.

We are currently seeking a Senior Product Developer to work with our global FMCG client, renowned for brands such as Magnum, Carte d'Or, Cornetto, Walls, and become an integral part of their fast-paced FMCG environment.

Senior Software Developer (Voice / SIP Platforms) £55,000 £65,000 DOE | Hybrid Working (1x day a month office) Are you a seasoned developer with a passion for building robust, real-time communications platforms? Looking for a role where you can work on complex, enterprise-grade systems while still

Senior Front End Developer An excellent opportunity for a skilled Senior Front End Developer to join a growing software development environment, working on secure, large-scale web applications using modern JavaScript frameworks, SQL, and strong UI/UX principles. If youve also worked in the following

We are currently seeking a Senior Product Developer to work with our global FMCG client, renowned for brands such as Magnum, Carte d'Or, Cornetto, Walls, and become an integral part of their fast-paced FMCG environment.

Job Title: Senior SAP ABAP DeveloperJob Type: ContractDuration: 6 MonthsIndustry: Food/ITJob Location: Work from Home (travel required)Rate: £400/day to £500/day (Outside IR35)Profile – Senior SAP ABAP Developer<p&

We are currently seeking a Senior Product Developer to work with our global FMCG client, renowned for brands such as Magnum, Carte d'Or, Cornetto, Walls, and become an integral part of their fast-paced FMCG environment.

A global algorithmic insurance carrier is seeking a Mid-Senior level BI Developer to design and develop business intelligence solutions using Tableau.

We are seeking a highly skilled Senior Java Developer to join a key digital transformation initiative for one of the UK’s leading retailers.

OB have partnered with a Global Insurance Leader, who are expanding their Python Engineering team, with Senior Python Developer, skilled with Python, SQL, Databricks and Cloud Infrastructure.

A leading recruitment agency is seeking a Senior Frontend HTML5 Developer to join an established online gaming/gambling company.

Fixed term, 6 months until 31 July 2026.This role is part of the Enterprise Operations team in Lancaster University Information Systems Services (ISS).The contract is for 6 months (fixed term) until 31 July 2026.The primary focus of the role is to support several medium sized projects throu

A leading software development company in the UK is seeking a Frontend Developer to join their team. This remote role requires expertise in creating UI for websites, building reusable code, and collaborating with other developers. Emphasis is placed on flexibility and a positive attitude in this mid

The company are happy to consider a Senior Developer who is looking to step up into more of a leadership role. Lead Software Developer required by a leading global Cloud Technology company based in Bracknell. The Lead Software Developer will be responsible for the software engineering output of the

We are looking for a Senior Software Developer who shares our passion for gaming and technology.

A leading recruitment agency is looking for an experienced PHP Developer for a hybrid position in South Devon. This role focuses on developing bespoke software solutions and maintaining business-critical applications while mentoring junior developers.

Net Software Developer - 1 or 2 days a week in the Horsham Office - Up to 70k.

We are seeking an experienced Senior Java Developer with strong expertise in Spring Boot, Microservices architecture, CI/CD pipelines, and DevOps practices to design, develop, and maintain scalable, cloud-native applications. Perform code reviews and mentor junior developers.

Seniority level: Mid‑Senior level. You will act as a senior consultant providing technical expertise in software engineering practices both internally and to our clients. Please note, we are looking for candidates who are looking for growth at this level (Senior), therefore the advertised salary b

A leading technology company in the UK is seeking a Senior Salesforce Developer to lead the development of custom solutions on the Salesforce platform. This role offers opportunities for career growth, mentoring junior developers, and contributing to diverse teams in a flexible work environment.

As a Senior Front End Developer, you'll be at the forefront of our digital product development, driving innovation and excellence in front-end engineering. As part of a project senior technical leadership team, you will also contribute to stakeholder management and strategic planning at account leve

A leading consulting firm is seeking a Splunk Implementation Specialist/Developer in the United Kingdom to support the design, configuration, and rollout of Splunk-based observability solutions.

We are looking for a Senior Software Engineer to join the Developer Tools Team. NET and the wider Microsoft developer ecosystem is essential. The Developer Tools Team is primarily responsible for creating libraries, SDKs, and other tools that simplify the integration of the Elastic product suite int

Here are a few things Developers have said about working at Edit Websites:. Working as a developer with Edit Websites is a rewarding experience, allowing me to work on a variety of challenges from small changes to whole module redesigns, which constantly encourages personal growth and learning. Expe

INDEZ is looking for a skilled.We are a Google Premier Partner and the organisers of the national Ecommerce Scotland conference B2C, B2B and Omnichannel merchants.This is a unique opportunity to work directly alongside our CTO - a highly specialised ecommerce architect with a PhD in High

Senior Developer page is loaded## Senior Developerlocations: Londontime type: Full timeposted on: Posted Todayjob requisition id: REQ-3592Location: London (Dean Street) | Hybrid: 2 days in the office per week Level: SeniorTech: AWS, Java, Typescript, Vue. About the Role**We�

A cutting-edge vulnerability research firm in Greater London is seeking a Senior Software Developer to join their team. The role requires expertise in languages like Python, C, and Rust, and an ability to mentor junior developers.