51 to 75 of 328 Software Engineering Jobs in Watford

Are you an experienced software professional with enhanced DV (eDV) clearance? Whether you're a developer, DevOps engineer, software tester, architect, or systems specialist – your skills are in high demand across a wide range of secure programmes based in and around Cheltenham. I’m currently supporting multiple long … to work on impactful, mission-critical systems in secure, collaborative environments. We're looking for eDV-cleared professionals with experience in areas such as: Software Development (Java, Python, C++, C#, JavaScript, etc.) DevOps & Infrastructure (CI/CD, Kubernetes, Docker, AWS/Azure/GCP, Ansible, Terraform) Test & QA (Automation … love to hear from you. Apply now or reach out directly to discuss how we can support your next career move within the secure software engineering space. More ❯

I am exclusively supporting a FinTech Product Company who are currently hiring for 2 x Senior Software Engineers to join their remote engineering team. They are profitable and already have their product (which i can expand on) used by a number of enterprise clients. They are looking for … a confident, experienced & passionate Senior Software Engineer with a product mindset and a deep understanding of Software Engineering. As a business, they are heavily driven by quality engineering & innovation and try to do things in a product mindset based around their end users. The role is FULL … + experience with another backend language (Ruby, C++. Elixir, Haskell, Go, Clojure or Scala) Private projects to showcase + deep interest/passion for software engineering is also a plus! They are also working heavily within AI and working with up to date AI technologies They are paying More ❯

Senior Software Engineer – Tech for Good – up to £120k (Plus Equity) - London This is not your average app build. Join a team of some of the brightest minds in the UK developing a Product to empower disabled people around the world. Backed by strong funding and aiming for 100x … growth, they’re building something as complex as autonomous vehicles but for a whole new domain. Role: Senior Software Engineer Salary: Up to £120,000 (Plus equity) Location: London/Hybrid Why join? - Backed by serious funding - Ambitious 100x growth plans - A product with real-world, global impact - A … team of some of the UK’s brightest minds W e’re looking for: ✅ 4+ years experience in Software Engineering working on complex products, I.e Sensor fusion, AR, or computer vision. ✅ A solid software background with a willingness to learn ✅ Exp with TypeScript, React, Python or Swift More ❯

Job: Staff Software Engineer (Frontend) Location: Northern Ireland (Remote) Salary: £100,000 - £120,000 + Equity Search 5.0 is delighted to be partnering with one of the UK & Ireland’s most exciting start-ups for a Staff Software Engineer to join the growing team. Our client is transforming … scaling journey post series A with some of the best, down to earth people in the industry who are “Problem Focused”. Jobs: Staff Software Engineer As a Staff Software Engineer, you will play a pivotal role in shaping the product's front-end architecture and user experience. … and technologies, advocating for their adoption when appropriate Sounding good so far, right? What we’re seeking for in applicants: 8+ years of professional software engineering experience focused on front-end development using React and TypeScript building robust and scalable solutions at a high level Technical Skills: Proficiency More ❯

Job Title: Principal Engineer - Embedded Software Rank: Determined by the confirmed level and scope of experience Company: Chevalier Tech Limited Location: Colindale, Greater London (On-site) Salary: Salary is competitive and negotiable based on experience. Job Type: Full-time, Permanent About Us Chevalier Tech Limited is a tier-one … Smart Door Handles, and Control Electronics, which are integrated into high-end passenger and super cars worldwide. About the Role As a highly Experienced Software Engineer , you will lead the software engineering team, play a pivotal role in the design, development, and implementation of embedded software … for ensuring the necessary resources are acquired and maintained to meet the set project development needs and delivery targets. You shall ensure the relevant software development processes and records are applied and secured. Ultimately, you are expected to efficiently drive the development of new products, enhance existing ones, while More ❯

Head of Backend Engineering Remote UK Only Up to £150,000 + 20–25% bonus (permanent) Contract option: £750/day Remote-first | No equity at this stage WeDo is exclusively supporting a mission-led fintech that delivers working capital and training to underserved micro and small businesses. With … combine mobile money, machine learning, and a hybrid service model to create long-term, sustainable impact. They are now seeking a Head of Backend Engineering to lead the development and evolution of their core lending platform. This is a strategic, hands-on leadership role with ownership of backend architecture … Payment, Fintech or Banking domain would be highly successful in this position. What you’ll be doing: Lead and develop a high-performing backend engineering team with a focus on collaboration, mentorship, and technical excellence Own backend architecture and strategy, ensuring systems are scalable, reliable, and secure Play a More ❯

SoTA in Artificial Intelligence and to achieve the best possible chance of a human-aligned AGI. We are looking for an early career Graduate Software Engineer to help us build our Python LLM evaluation library, working closely with the Engineering and Science teams. We open to hiring remotely … is a high-impact and high-ownership role. We believe this is an unique and exciting opportunity where you will need to influence our software roadmap, you will have a strong say in how our technical and product roadmap evolves, and you will engage with our users and customers … lead the development of our open source Python tools, and to engage and grow our community. The ideal candidate is someone with passion for software an AI; ideally, you should have previous experience with LLMs, contributed to open source projects, and/or show a strong track record of More ❯

Role: Software Engineer (Full Stack) Salary: £50,000 - £60,000 + equity options Location: Central London - 4 days per week in-office Overview Our client is a rapidly growing digital insurance provider on a mission to simplify and modernise the insurance experience. Backed by £43m in funding and with … over 300,000 customers, they're entering a key period of product expansion. They're looking for a Software Engineer (Full Stack) to help shape and scale their platform as they continue to grow. Key Responsibilities Deliver high-impact features and lead cross-functional projects Collaborate with Product, Data … and Commercial teams to build user-first solutions Tackle meaningful, end-to-end challenges across the stack Influence platform architecture and engineering practices Maintain strong standards through testing, peer reviews, and clean code Contribute to product and team direction in a high-growth environment Ideal Candidate 2-4 years More ❯

AI Engineer – Agentic Systems & Automation – £70,000 – Fully remote in UK A fast-growing company at the forefront of engineering innovation and AI automation is seeking an experienced AI Engineer to help develop intelligent, scalable agentic systems integrated into modern software development lifecycles. This role involves leading the … design and deployment of LLM-powered agents, developer tools, and automation frameworks that streamline workflows and elevate productivity. This is a hands-on engineering role that blends software development, AI experimentation, and product innovation. The successful candidate will play a key role in architecting agent-based systems, leveraging … LlamaIndex to enhance developer workflows. Tooling & Assistant Innovation: Develop AI-powered assistants and developer tools with an emphasis on scalability, performance, and reliability. AI Engineering: Build, test, and optimize generative AI features using platforms such as OpenAI, Claude, and Gemini, including fine-tuned custom models and evaluation pipelines. Prompt More ❯

Senior Software Engineer – C/C++ Global FinTech Remote (NI & RoI) Permanent | Full-time £60K + bonus & excellent benefits package IT Search has partnered with a global fintech that’s growing its UK engineering team. They’re looking for a Senior C/C++ Engineer to help build … maintain secure, high-performance systems that power real-time payments on a global scale. In this role, you’ll design and develop core backend software, working closely with a talented team to integrate with partner APIs and tackle challenges around performance, scalability, and reliability. It’s a product-focused … in a collaborative environment with strong technical standards. What you need: Solid experience with C or C++ in a production environment Familiarity with modern software engineering practices: version control, testing, code reviews Comfortable working with structured data (e.g. XML, JSON) and API interactions Strong analytical and problem-solving More ❯

competition through speed and innovation. Apexon brings together distinct core competencies – in AI, analytics, app development, cloud, commerce, CX, data, DevOps, IoT, mobile, quality engineering and UX, and our deep expertise in BFSI, healthcare, and life sciences – to help businesses capitalize on the unlimited opportunities digital offers. Our reputation … is built on a comprehensive suite of engineering services, a dedication to solving clients’ toughest technology problems, and a commitment to continuous improvement. Backed by Goldman Sachs Asset Management and Everstone Capital, Apexon now has a global presence. The ideal candidate is a self-motivated, multi-tasker, and demonstrated … team-player. You will be a senior developer responsible for the development of new software products and enhancements to existing products. You should excel in working with large-scale applications and frameworks and have outstanding communication and leadership skills. You’ll be responsible for: Producing high quality, maintainable code More ❯

Smart Door Handles, and Control Electronics, which are integrated into high-end passenger and super cars worldwide. About the Role As a highly Experienced Software Engineer , you will lead the software engineering team, play a pivotal role in the design, development, and implementation of embedded software … for ensuring the necessary resources are acquired and maintained to meet the set project development needs and delivery targets. You shall ensure the relevant software development processes and records are applied and secured. Ultimately, you are expected to efficiently drive the development of new products, enhance existing ones, while … career growth coupled with a unique opportunity to fulfil own potential as a leader in innovation. Key Responsibilities Lead the design, development of embedded software for automotive applications. Oversee the development of new products, ensure high performance, reliability, compliance with industry standards, and suitability for volume production. Enhance and More ❯

Senior Java Developer - £75k | FinTech | remote | Java, React, AWS, TypeScript G.Digital have exclusively partnered with a growing FinTech who are looking for a Senior Java Engineer. 🔧 What You’ll Do: Design, develop, and maintain high-performance Java applications Collaborate with More ❯

We're looking for a DevOps Engineer with a strong software engineering mindset to join our team. This role is ideal for someone who enjoys writing clean, maintainable code to automate infrastructure, streamline development workflows, and optimize deployment pipelines. You’ll play a key role in building the … internal tools, services, and environments that enable software engineers to deliver high-quality features quickly and reliably. Key Responsibilities: Design, build, and maintain robust CI/CD pipelines to accelerate the software development lifecycle Develop internal tools and services in C# to support build automation, deployment, and testing … production Support migration of workloads to cloud infrastructure (Azure or AWS) Monitor and improve build infrastructure performance, helping scale services effectively Collaborate closely with software engineers and QA to identify and remove bottlenecks in the dev process Interface with corporate dev services and IT to align infrastructure and development More ❯

Principal Software Engineer £85,000 Remote, UK and Ireland We’re looking for a Senior or Principal Software Engineer to join a growing and dedicated Software function who are pushing to be the best at what they deliver. Are you experienced with being a hands on Senior … Software Engineer who can provide and contextualise the why and the how to other members of your team? This role could be for you! The Principal Software Engineer is a key member of an Agile squad, who is able to put together highly scalable SOLID OOP code in … pension Opportunities to progress into management More to be discussed Please hit quick apply or send an email to beth.lees@primis-talent.com Principal Software Engineer, Senior Software Engineer, Lead Software Engineer, C#, .NET, OOP, SOLID, RabbitMQ More ❯

Site Reliability Engineer Up to £90k (Multi-Cloud | Kubernetes | Azure | AWS) Remote This is an exceptional opportunity to join a market-leading software house undergoing a major cloud transformation. As their Site Reliability Engineer, you’ll play a critical role in ensuring system reliability, scalability, and performance across both … AWS and Azure environments. This is your opportunity to lead cloud-native transformation and embed SRE best practices into engineering at scale. What you’ll be doing as their Site Reliability Engineer: You’ll be the go-to expert for designing and maintaining resilient, automated, and observable infrastructure systems. … Working cross-functionally with software engineering and architecture teams, you’ll: Engineer highly available, reliable platforms across AWS & Azure using Kubernetes, Helm, Terraform, and cloud-native services. Drive infrastructure automation, build and evolve infrastructure as code (Terraform, etc.), and CI/CD pipelines to reduce toil and accelerate More ❯

currently looking for a talented Senior C++ Developer. In this role, you will interact closely with various departments across our organisation, including the product engineering and customer support teams. As a senior figure, you will also have the opportunity to coach team members and take a leading role in … critical software development projects. Key focuses will be contributing to the future technical direction of our main product, gaining deep expertise in our domain whilst promoting modern development practices. Role Responsibilities: • Hands-on C++ software development contributing to the design, maintenance and advancement of complex software • Stay … Adept in managing legacy code bases • Experience with higher level languages - specifically Python and C# would be beneficial • Comfortable working across technology domains and software stacks • Strong knowledge of Linux and Windows Operating Systems • Awareness of containerisation and orchestration technologies • Familiarity with scripting languages • Experience in collaborative and iterative More ❯

team for a 6-month temporary contract. As a pivotal member of our technology department, you will play a critical role in ensuring our software meets the highest standards of quality, reliability, and security. Role: QA Engineer Duration: 6 Months (extension options) Location: Plymouth (Remote 1 day a month … people to the energy they use safely, reliably, and efficiently, ensuring a brighter future for all. Job Purpose: Reporting to the Head of QA Engineering, you'll design, implement, and manage software testing, platforms, and tooling, both SaaS and on-premise. Your expertise will ensure system quality and … You will be an advocate for Agile principles, fostering a culture of continuous improvement and collaboration. Key Responsibilities: Design and deploy scalable, high-performance software in alignment with our operational and business goals. Monitor and enhance the performance and reliability of large-scale distributed software platforms. Develop automation More ❯

compliance. You will contribute to the design and development of features, ensuring code quality through best practices. Key Responsibilities: Design, code, test, and deploy software solutions aligned with Aibly best practices and standards. Identify iterative opportunities to enhance system performance, security, and user experience. Work closely with cross-functional … teams, to deliver end-to-end solutions. Develop software prototypes to demonstrate solution capabilities Write and optimise code for back-end operations, ensuring robust and efficient system performance Develop and implement front-end code to create intuitive user interfaces Ensure technical feasibility of UI/UX designs Optimise applications … transfer, onboarding, and ongoing maintenance. Investigate and resolve technical issues to minimise disruption to service delivery. Required Qualifications: Bachelor's degree in Computer Science, Software Engineering, or related field 2-3 years of full-stack development experience. However, we would consider a back-end developer with good front More ❯

financial services sector. Their mission is to enable businesses to operate more efficiently through their automation platform, and they are investing heavily in platform engineering to streamline development and improve the overall engineering experience. They are looking for a senior platform engineer who is passionate about developer experience … more efficiently. What you’ll be doing Building and enhancing internal developer platforms to simplify onboarding and deployment processes Creating golden paths for common engineering needs, such as AWS database provisioning, security best practices, and infrastructure templates Improving pipelines and automation to remove bottlenecks in the development lifecycle Treating … the platform as a product, with internal developers as your customers Defining and implementing standards, governance, and best practices to improve engineering efficiency Supporting the transition from AWS CDK to Terraform Leading the shift from Azure DevOps to GitHub Actions for CI/CD Implementing monitoring solutions such as More ❯

Principal Software Engineer | Python/GoLang, Product Development & Public Cloud | Security SaaS Prism Digital have partnered with a super interesting and niche VC-backed client specialising in attack surface management and automated red teaming. Their platform provides organisations with real-time visibility into their attack surface and potential exploitable … any sign of slowing down their growth. After receiving a total of $29 million over three funding rounds, they're looking to grow their software engineering division throughout the next 6-months with this senior role and a further junior role. They have recently expanded into Europe & US … have the opportunity to work at the scale of the internet, their product scans the entire internet, giving you the chance to work with software no other company has developed. This role is an individual contributor , you'll have no line management and you'll be given full autonomy More ❯

About the Role: We are seeking a highly experienced and versatile Senior Software Engineer with deep expertise across quantitative development, infrastructure engineering, and full-stack development, to join and lead a high-performance team. The ideal candidate thrives at the intersection of finance and technology, has led engineering … and infrastructure teams to deliver performant solutions. Maintain and optimize trading infrastructure (low-latency systems, data pipelines, monitoring, etc.). Manage a team of software engineers, mentor junior developers, and drive best practices across the stack. Ensure high code quality through code reviews, CI/CD, test automation, and … for internal tools and external integrations. Work with data at scale (market data ingestion, real-time analytics, historical storage). Required Skills & Experience: Core Engineering: 5+ years of experience in software development, with exposure to both backend and frontend stacks. Strong programming proficiency in Python, C++, and Java More ❯

language interactions, integrating with existing databases and computational pipelines. The AI Engineer will have core expertise in AI, LLMs, NLP frameworks - together with a software focus (Python, APIs, SQL, cloud) including proven experience of delivering products to clients. The role: Platform Development Design and implement LLM-powered conversational interfaces … AI/ML Core 3+ years hands-on experience (predominantly industry gained) with LLMs (GPT, BERT, T5, Claude) and NLP frameworks Proficiency in prompt engineering, fine-tuning, and function-calling architectures Experience with Hugging Face, OpenAI APIs, and transformer libraries Understanding of model customization for domain-specific tasks Experience … with retrieval-augmented generation (RAG) systems Knowledge of optimization techniques for reducing LLM latency and computational costs Software Engineering & Architecture Strong Python development skills (pandas, numpy, scikit-learn, PyTorch/TensorFlow) Experience with web frameworks (Streamlit, FastAPI, or Flask) and frontend technologies Database design and optimization (PostgreSQL preferred More ❯

Reverse Software Engineer (IDA Pro/Ghidra/Binary Ninja) Letchworth – Fully Remote £65,000 - £75,000 + Remote + Private Medical + Bonus + International Travel (USA) Visa Sponsorship Available Are you a Software Engineer that has worked on reverse engineering of software back to … work collaboratively to help create bleeding-edge technology that is quickly revolutionising the tuning market in Europe. In this role you will be reverse engineering daily on ECU’s and MCU’s of Europe’s leading car manufacturers like Mercedes, Audi and BMW. The reason for this is so … the tuning equipment/software can be applied to all kinds of vehicles to improve performance and full consumption. The ideal candidate will have experience with software reverse engineering, tools like IDA Pro, Ghidra, Binary Ninja or similar and be able to code in C/C++ More ❯

build both product and team in a fast-moving environment with purpose at its core. What You’ll Do Lead and mentor a senior engineering team working across backend, ML, and infrastructure. Play key role in design, development, and deployment AI applications using LLM's, Agentic framework, and other … technical direction for core systems, focusing on scalability, performance, and reliability. Write clean, maintainable code and contribute actively to the codebase. Define and uphold engineering best practices (code quality, CI/CD, observability, etc.). Collaborate closely with the CTO and product team to align technical delivery with strategic … and developer experience. Play a key role in hiring and onboarding as the team grows. What We’re Looking For 7+ years of commercial software engineering experience with a strong backend focus. Proven ability to lead engineering projects and/or teams. Experience with LangGraph, and a More ❯