1 to 25 of 31 Permanent Senior Software Engineer Jobs in Hemel Hempstead

Are you keen to help in the transition towards sustainable lifestyles with clean technologies? Senior Software Engineer 🚩 Fully Remote in the UK 💰 £90,000 - £120,000 I am partnered with a Scale-Up Energy SAAS provider who are looking for a Senior Software Engineer … engineering strategy of the company. Their highly scalable, low latency platform is built on Java, AWS, Docker and Kubernetes. You will be an ideal Senior Software Engineer if you have: PhD educated background, ideally in Computer Science or Maths, Engineering Deep understand of Computer Science fundamentals and … your approach As a company they are massively scaling up their development function this year and you'll have a fantastic opportunity as a Senior Software Engineer to have a huge influence on the companies engineering strategy. If you have a PhD in Computer Science with a More ❯

global challenges including climate change, biodiversity and sustainable development. We are a Google Premier Partner and we specialise in designing and building high performing software solutions including both customer specific solutions (business to business model) as well as our own Software as a Service products. The Opportunity We … are looking for a full-time Senior-level Software Engineer to join the NGIS EU in team in Canada, UK or Italy to help with the development and delivery of our TraceMark Software as a Service products. The TraceMark Sustainable Solution factory includes products for: Sustainable … https://tracemark.com/eudr) Sustainable Cities (https://tracemark.com/flow) Sustainable Fashion (https://materialsimpactexplorer.com/). As a Senior Software Engineer, you will be responsible for building full-stack web, desktop and mobile applications based on customer requirements. You will primarily More ❯

Job: Senior Software Engineer Location: Northern Ireland (remote) Salary: £70,000 - £80,000 + attractive share options Search 5.0 is exclusively partnering with one of the UK & Ireland’s hottest growing tech companies co for a Product focused Software Engineer to join their team! Our … journey with some of the best, diverse technologists in the industry in a domain in which they can barely keep up with demand. Job: Senior Software Engineer Our client works in a cross-functional set-up with a high degree of autonomy and responsibility for the product. More ❯

Motor Control Software Engineer (senior/principal) Warwickshire, UK £65-75k + bonus + benefits (negotiable) This is a fantastic opportunity for an experienced software engineer to develop motor control software for a broad variety of customers across multiple e-mobility/electric … vehicle sectors. Based in Leamington Spa. Required : ESSENTIAL : Proven experience of developing software for traction motors used directly for e-mobility applications (land, sea or air - e.g. automotive electric vehicle EDU systems, drone propulsion, marine electric powertrains, etc) Experience of developing embedded software OR model based software Experience of capturing requirements and developing software architecture Good technical leadership/mentoring and communication skills In this role you will be involved with taking customer projects from concept to prototype. This means being able to develop systems from scratch, bringing solutions up through hardware integration and lab More ❯

Business Intelligence Platform (YC-backed) | Senior Software Engineer At Dynamism.io, we’re excited to partner with the founding team at a leading open-source BI platform to find talented Senior Software Engineers. If you’re passionate about shaping the future of data visualization, building innovative … the team is expanding quickly to serve major clients such as Workday, Beauty Pie, Hypebeast, and Morning Brew. Role Overview and Responsibilities: As a Senior Software Engineer, you’ll play a critical role in enhancing and scaling the platform. From owning features end-to-end to collaborating More ❯

About the job Job Title: Senior Software Engineer Team: Graphics Location: SI HQ, Here East, London/Remote Reporting to: Lead Software Engineer (Graphics) We are Sports Interactive 🎮 The gaming studio behind: ⚽ Football Manager. Founded in 1994, Sports Interactive (‘SI’) became a wholly owned subsidiary … improving the visual quality and performance of Football Manager is one of our main goals, and we are looking for an experienced, passionate graphics software engineer to join our team. In this role you will collaborate with peers in the Graphics Team as well as work closely with … scalable, high-quality rendering solutions. Knowledge, Skills, and Experience Essential: Extensive professional experience using C# as the main language. Significant experience as a graphics software engineer, having shipped at least one game using Unity on multiple platforms. Strong knowledge of Unity URP, including customization via Render Graph and More ❯

Senior Software Engineer - Unity Fully Remote within UK £70,000-£90,000 Are you an experienced Unity Developer looking for your next challenge on a fully remote basis – this role could be for you! I’m working with a leading ‘immersive technology business’ who develop content and … boundaries within the immersive space and with loads of new projects on the horizon, they are now looking to grow their team with a Senior Software Engineer to join their Studio! In role, you will have wide variety of responsibilities from collaborating with different teams to deliver More ❯

Senior Software Engineer | up to £80k + shares + bonus | GreenTech | Yorkshire/hybrid 🌳🔌🌎 About the business This business is on a mission to help reduce their clients carbon footprint. After successfully smashing start-up phase, operation scale-up is now underway💪. 👉4 x award winning … days holiday + office closure over Christmas If you'd like to find out more, drop me a note on: c.stoddart@g-digital.co.uk Senior Software Engineer | up to £80k + shares + bonus | GreenTech | Yorkshire/hybrid More ❯

Role: Senior Software Engineer Location: Remote Day Rate: £600.00 - £700.00 (Outside IR35) Contract Duration: 6 Months We are currently recruiting for a Senior Software Engineer for a client in the e-commerce space, you will be responsible for the tech behind everything from scheduling … and CI/CD workflows Improve system documentation and knowledge sharing Ensure secure and reliable data handling (GDPR-compliant) Key Skills: 5+ years in software engineering, ideally with PHP and MySQL/MariaDB Strong AWS experience (EC2, RDS, S3) Comfortable working with legacy and bespoke systems Skilled in security More ❯

Title : Senior Software Engineer Company : HPC R&D Location : London (very flexible hybrid) Pay : Up to £170,000 + bonus + benefits Company : An advanced HPC R&D firm, looking to expand the UK compiler team. Most of the team are ex-Big-Tech, ex-FAANG or … technical leadership. If you want to work alongside some of the brightest, most enthusiastic people in the industry, this may be worth exploring. Role : Senior Software Engineer position with an emphasis on AI Compiler development in the context of AI. You will be working with Triton, but … edge compiler development project. Significant hires have already been made in the team to support this role. About you: 6 years+ as a compiler engineer Strong C++ programming skills Experience with Triton, LLVM, MLIR or other compilers Experience with GPU architectures Full details are available. Please don't hesitate More ❯

Senior Software Engineer - Client Identity We are seeking a Senior Software Engineer to join a newly formed cybersecurity team based in Europe. This role is pivotal in shaping secure and seamless digital experiences for hundreds of thousands of clients across the UK and Europe. More ❯

Senior Software Engineers + Software Engineer] [Python/AWS] [Fully Remote from within Northern Ireland/ROI] The way software is built is constantly evolving. This platform makes it easy for companies—especially big enterprises with hundreds of teams and thousands of developers—to securely … update and share software, using the cloud. You'll get to help developers, security, platform engineers, to work smarter and safer. This is by developers, for developers. They've just raised Series B and you'll have direct impact on further success. Every team member has experienced significant personal … are open across different squads : Platform - SSE [Responsible for lots of core platform] Webapp - SSE [API Heavy/3rd Party Integrations] Artifact mgmt SaaS - Software Engineer [Core product/Python+Django) It's a Python house with everything hosted on AWS, so you will need to come strong in More ❯

Senior Software Developer Location: Bristol (Hybrid – 2/3 Days Onsite) Job Type: Permanent Clearance Requirement: SC Eligible The Opportunity We’re working with a leading defence organisation on a key hire for a Senior Software Developer to join their embedded systems team. This is a … hands-on, high-impact role developing real-time software for next-generation systems where performance and reliability are critical. Whether leading delivery or solving complex low-level challenges in C/C++ or Ada, you'll be at the core of safety-critical defence technologies—offering both deep technical … engagement and long-term career growth. What You’ll Do • Lead or support the design, development, and integration of embedded software for advanced real-time platforms • Collaborate with systems, hardware, and safety teams to deliver certified software solutions that meet strict performance and security standards • Engage directly with More ❯

Senior Software Engineer Fully Remote, excellent package and incredible opportunity We're looking for a Senior Software Engineer to join a fast-moving team building tools used by thousands of real-world users. You'll collaborate closely with Product, Design, and Customer Success to … and engage directly with customers to make sure what you're building actually works for them. What You’ll Be Doing Writing production-grade software in Ruby on Rails and React Native Leading on technical and architectural decisions across the stack Collaborating cross-functionally with Product, Design, and Customer More ❯

with an extra emphasis on expansion of our capabilities and capacity in helping solve unique client challenges. Summary: Beazley Security is seeking an experienced Senior Software Engineer to design innovative, secure scalable solutions that support our cybersecurity mission. As a key member of our global team, you … role will play a critical part in the continued improvement, scalable development, and support of products used to deliver Beazley Security services. As a Senior Software Engineer, this role will provide technical guidance around architecture and development, as well as mentor members of the Engineering team. This … test, and deployment processes. Create Infrastructure-as-Code. Collaboration: Work closely with product managers, other engineers, and stakeholders to define and deliver high-quality software solutions. Balance: Ensure feature development speed and reliability with well-defined service-level objectives. Improve: Continually update the deployment process to ensure only robust More ❯

I am supporting a FinTech AI Product Company who are on the hunt for an experienced Senior Software Engineer to join their FULLY REMOTE engineering team! They are a heavily tech driven Product Company who put a huge emphasis on quality engineering, innovation and forward thinking. As … a Senior Software Engineer, you will work closely with their CTO and play a very important role on the direction of the product! You'll support with key tech decisions, architecture, project delivery and mentoring other Engineers in the team. Requirements: Deep experience with Python, TypeScript, React More ❯

Senior Software Engineer Tech Stack: C#, .NET, Microservices, Docker, Kubernetes, AWS/Azure United Kingdom Full Remote: Perm Role Salary: £85,000 - £110,000 Harrington Starr has partnered with an innovative start up FinTech who specialise in providing market access and data from their ultra low-latency … platform to financial service firms, leading exchanges and single dealers across digital assets, FIX and more. They are looking to hire a Senior C#, .NET Engineer with strong experience in start-up/scale up firms, able to take ownership of developing new applications, adding features to existing More ❯

provider of Network Security solutions specializing in automatic detection and mitigation, network visibility, analytics, and reporting tools. About the Role Are you a seasoned software engineer with a passion for designing and developing cloud-native Infrastructure-as-Code (IaC) solutions from the ground up? Our client is seeking … a talented and motivated Senior Software Engineer to lead the development of our next-generation observability platform. THIS IS NOT A DEVOPS ROLE. Responsibilities Collaborate within a dynamic software engineering team to architect and build a new cloud-native IaC platform. Develop software using technologies … or on-premises setups. Engage in the full development lifecycle: design, define work, document, debate, code, debug, and support features from inception. Qualifications A software developer experienced in designing and delivering complex IaC capabilities from scratch, not merely operating existing environments. A background in developing cloud-native systems software 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 … 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 skills 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 … + 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 up More ❯

Senior Software Engineer – Java - FinTech Remote First | London (UK) | Up to £120k + Benefits Are you a Java developer who thrives in a collaborative, test-driven environment? Do you believe in pair programming, continuous integration, and clean, maintainable code? If so, we’d love to hear from More ❯

We’re partnered with a globally recognised team behind a widely used open-source platform. They’re looking for a Senior Software Engineer with strong Ruby experience to lead on new feature development, performance improvements, and robust testing — all within a fully remote environment. You’ll be More ❯

to join us in person once a month for team meetings in either Edinburgh or London. How you will make a difference: As the Senior Software Engineer , you will play a key role as part of an agile team building innovative products that make life better for … continuous feedback Advance the values of the organisation (caring, accountability, integrity, empowerment, passion, fun) What will make you stand out: Extensive experience in professional software development, with a strong track record of building and delivering high-quality applications Expert proficiency with JavaScript (NextJS, TypeScript, and SST) Strong experience with More ❯

Senior Full Stack Engineer | Remote | React | Node | TypeScript | £95k + Equity La Fosse has partnered with a creator enablement platform that helps some of the world's most famous and talented creators maximise their commercial potential. As they move towards securing Series B funding, they are seeking Senior … with a quick 3-stage virtual interview. If you're interested in the position and feel you fit some of the requirements, apply now! Senior Full Stack Engineer | Remote | React | Node | TypeScript | £95k + Equity More ❯

C++ Software Engineers (All Levels) – Edinburgh Hybrid (2 Days On-Site) We’re at a pivotal stage in building the first of two new R&D teams for a cutting-edge medical technology company based in Edinburgh. This is a rare opportunity to join a greenfield project, with up … to 22 hires planned across Principal , Senior , and Mid-Level Software Engineer roles. The product is a next-generation, globally distributed medical device, backed by a major parent organisation that ensures long-term stability and investment. The company offers a positive work-life balance, with standard working More ❯