1 to 25 of 38 Permanent Software Engineer Jobs in Guernsey

Backend Software Engineer UK Remote 6 Month Contract A fantastic contract role has opened up for a highly skilled Backend Software Engineer with strong expertise in Go. This is an exciting chance to join a leading technology company known for its high engineering standards and innovative approach to distributed systems. In this position, the Backend Software Engineer will play a central role in building and scaling mission-critical, data-heavy applications. Youll be involved across the full engineering lifecycle - from system design through to development and delivery - taking ownership of solutions that drive real impact. Working closely with an Engineering Manager and collaborating with cross-functional teams, the Backend Software Engineer will … such as AWS, Kubernetes, Docker, and Kafka. Youll also focus on improving performance, reliability, and scalability, contributing to design discussions, code reviews, and knowledge sharing across the team. Backend Software Engineer - Key Skills & Experience: Strong background in backend software engineering, with significant commercial experience Advanced proficiency in Go (Golang) and hands-on expertise with AWS, Kubernetes, and More ❯

Senior Software Engineer Web3 & Digital Finance Platform Up to 85,000 + Equity Full Remote - Europe Were representing a pioneering digital finance company operating at the intersection of FinTech and Web3 . Their platform powers a new generation of yield and investment products for digital asset holders, combining financial-grade infrastructure with the flexibility and innovation of blockchain … technology. Theyre now looking for a Senior Software Engineer to join their distributed engineering team. This is a rare opportunity to work on real-world Web3 integrations and contribute to a production-grade platform that underpins institutional-scale digital finance. Youll be part of a small, high-performing engineering team responsible for building and evolving the companys core … backend systems and APIs. Your work will directly support blockchain integrations, custody solutions, and partner-facing investment products. Key Responsibilities as a Senior Software Engineer: Design, develop, and maintain backend systems and APIs that power digital asset and yield products. Build integrations with crypto exchanges, custodians, and blockchain data sources. Write robust, maintainable, and well-tested code in More ❯

Java (Back-end) Software Engineer Remote (UK) Up to 70,000 I am looking for a Java Software Engineer to join a leading international network security software company This is a fantastic opportunity to work with cutting-edge technology and make a real impact in the industry. You will join a small close-knit IT … and support a globally dispersed workforce. Hybrid, flexible and UK remote working on offer along with pension, private healthcare, DIS, career progression and other benefits on offer. The Role: Software development and support of complex and algorithmic Java software within a Linux environment. Development and use of software APIs between components in a Linux system. Collaborate closely … with other team members, product management, and engineering management on requirements. Deliver strong contribution to intellectual property and software assets. Work across the entire lifecycle including design, implementation, integration, and bug fix. About You: Highly proficient in Java 21+ Good object-oriented software design skills Solid experience in Linux environments Experience in Spring framework, particularly Spring Boot If More ❯

Senior Software Engineer - .NET Core, Blazor, SQL Server Location: Remote (UK-based) Salary: 50,000 60,000 (depending on experience) Benefits: Company pension scheme, 25 days holiday + bank holidays Applause IT are recruiting for a Senior Software Engineer on behalf of a highly impactful, tech-driven not-for-profit organisation thats tackling one of the … of millions of life-saving resources annually, powered by a bespoke tech platform that emphasises transparency, accountability, and data accuracy. As their operations grow, theyre seeking an experienced Senior Software Engineer to help evolve and scale their platform. What you'll be doing: Developing and maintaining robust internal and external systems using .NET Core, Blazor, and SQL Server More ❯

Contract Software Engineer/Lead Developer Expert The Role We're looking for an exceptional Software Engineer/Back-End Developer a true super dev with proven Design Patterns expertise and a deep understanding of software engineering/development. This is a high-level contract role, suitable for someone operating at a Principal Engineer or Lead Engineer level. You'll join a small, highly skilled team building a new platform driven by innovative algorithms, clever data structures, and design patterns-based architecture. Working closely with the Head of Architecture, you'll take abstract concepts and requirements, distil them, and deliver high-quality, elegant solutions. This is a role for someone who thrives … UK-based. Rate: circa 680 per day (inside IR35) Duration: 6 months initially Start: ASAP November2025 Key Responsibilities Lead the back-end development of a new platform. Apply advanced software engineering/development and design patterns Translate abstract concepts into working, production-ready solutions. Employ Test-Driven Development (TDD) and SOLID principles. Build robust, scalable algorithms and efficient data More ❯

Full Stack AI Software Engineer - Full Remote UK - 90,000 + Equity *APPLICANTS MUST BE BASED IN THE UK AND HAVE FULL RIGHT TO WORK* This role requires a software engineer with experience in implementing RAG pipelines and Vector Search (and hybrid AI searches, preferably). The client I am working with are an AI focused … lengthiness and challenges of deal processes in the past. Their stack spans across back end, front end, data and crucially AI. This is a great opportunity for an entrepreneurial software engineer who wants to play a part in shaping the technical vision of this business and work on their product from an early stage. What you'll work … and play a role in shaping technical direction. Innovation: Explore and recommend new technologies, frameworks, and methods for both full-stack and AI development. Requirements: A motivated, hands-on engineer with an ownership mindset, strong communication skills, and a collaborative approach. 5+ years experience in full-stack development. Strong background in RAG systems , vector databases (pgvector, FAISS, Weaviate, Elasticsearch More ❯

C++ Software Engineer required by a global software company developing products for use in data security. *Fully remote - no office based work required at any point The successful C++ Software Engineer will join a team developing new components that are integrated into a microservices architecture. Proven experience programming C++ on Windows is sought. Any knowledge More ❯

Job Title: Senior Embedded Software Engineer Location: Fully Remote (UK) Salary: 80,000 - 90,000 per annum (DOE) Are you a systems-focused engineer with a passion for virtualisation and fullstack development? We're hiring a Senior Systems Engineer to join a UK-based tech company that's building innovative solutions across storage, networking, and compute … virtualisation. About the Role As a Senior Embedded Software Engineer, you'll be responsible for developing and maintaining a fullstack virtualisation software platform. You'll work across the full software development lifecycle, from prototyping and architecture to debugging and deployment. This is a hands-on role with the opportunity to influence technical standards and drive innovation … across the platform. Key Responsibilities Design and develop well-structured, testable, and efficient code in C and Python. Prototype solutions and troubleshoot complex system bugs. Lead development of entire software systems and oversee project execution. Recommend and implement new technologies to improve functionality and productivity. Collaborate with cross-functional teams across engineering, QA, and product. Maintain technical standards and More ❯

Graduate Software Engineer Location: Remote (London office available) Type: Full-time Were looking for a Graduate Software Engineer to join a small, highly skilled engineering team building a next-generation Financial Services Regulatory Compliance platform. This is an exciting opportunity to kick-start your career in software engineering, working with modern technologies and learning directly … team in building and maintaining frontend applications with React . Help deliver new features and improve existing functionality. Work closely with senior engineers to gain hands-on experience in software development best practices. Collaborate across the team to learn how large-scale systems are designed and maintained. About You Recent graduate (or about to graduate) in Computer Science, Software More ❯

Senior C++ Software Engineer required by a global software company developing products for use in data security. *Fully remote - no office based work required at any point The successful Senior C++ Software Engineer will join a team developing new components that are integrated into a microservices architecture. Proven experience programming C++ on Windows is sought. More ❯

C# Software Engineer SaaS brand Location: Fully Remote Salary: Up to 75,000 + Excellent Benefits Were on the lookout for a talented C# Software Engineer to join a brand-new team delivering a cutting-edge, greenfield digital transformation Programme for an exciting SaaS brand. This is a fantastic opportunity to work with a well-known More ❯

eFX Software Engineer Low-Latency Trading | London | Permanent | Up to 160k We are recruiting on behalf of a leading financial institution seeking a skilled eFX Software Engineer to join their electronic trading team in London. This role offers the chance to work on cutting-edge, low-latency FX trading platforms that support global markets, while shaping … for <40 microseconds one-way latency. Optimise application performance using advanced multithreading, lock-free programming, and low GC techniques. Work within Agile and DevOps frameworks, contributing to the full software development lifecycle. Collaborate with traders, quants, and technology teams to develop pricing, risk management, and automated trading functionality. Contribute to technical strategy, architecture, and roadmap planning for the trading More ❯

Software Engineer (.Net) SC Cleared Permanent Location: Fully remote/WFH (UK residency only) Salary: 50,000 - 55,000 (+ on-call 5K + a comprehensive range of Employee Benefits) Essential Skills: C#.Net, MVC, ASP.Net, SC Clearance We are looking to recruit an SC Cleared Software Engineer to a leading technology consultancy. This is a home … a supportive, inclusive, and socially active engineering team What we're looking for: ** Essential ** Active SC Clearance - or lapsed within the last 12 months Solid understanding of the full software development lifecycle Familiarity with ITIL IT Service Management processes Strong appreciation for development standards and quality procedures 2+ years' professional experience with some of the following technologies: Technical Skills More ❯

Lead Software Engineer | React & Node.js | SaaS House *Remote First*, Head Office based in Berkshire. Prism Digital have partnered with a super cool UK/US-based company that creates a suite of SaaS Data Visualisation tools which plug into various applications and cloud/infrastructure environments. Our client essentially provides a Data Visualisation tool akin to DataDog, Prometheus … be in the office x5 days this year) Regularly paid for company trips This role does not accept applicants outside of the UK, nor does it offer sponsorship Lead Software Engineer | React & Node | SaaS House More ❯

Software Engineer (SC & NPPV3) 6 Month Contract Fully Remote Rate: 500 - 600 per day (Inside IR35) Skills: C#.Net, XML/JSON API's, SC & NPPV3 Clearance We are looking for an experienced Software Engineer to join a high-profile public sector project. You will play a key role in designing, building, and maintaining software solutions … .NET 6+ Work with XML/JSON APIs for integration and data exchange Develop and execute automated tests with MSTest Collaborate with stakeholders to gather and analyse requirements Ensure software is secure, scalable, and maintainable Essential Skills Strong commercial experience in C# In-depth knowledge of .NET Framework and .NET 6+ Proven experience working with XML/JSON APIs More ❯

Senior Software Engineer Payments Location: United Kingdom (Remote/Flexible) Schedule: MondayThursday Salary: 85k About the Company A leading global digital platform empowering creators and businesses to launch innovative projects. With billions processed worldwide, the company is dedicated to building transparent, compliant, and scalable financial systems that support a global community. The Role Were seeking a Senior Software Engineer to join the Payments team, responsible for designing and maintaining compliant, efficient, and auditable global payment flows. Youll ensure accurate tax handling (VAT, HST, GST) and financial reporting across multiple jurisdictions, collaborating closely with Product, Finance, and Legal teams. Key Responsibilities Design, build, and maintain tax-aware, compliant payment systems. Develop automated solutions for tax calculation, refunds More ❯

time, 6-Month FTC with potential to extend or go permanent 60-75,000 p/a negotiable (pro-rata for 6 months) + Benefits Are you an Android Engineer who wants to take your passion for Android development to help create a product thats shaping the future of the yachting industry? This is a rare opportunity for an … from people of all backgrounds, including neurodivergent candidates. If youd like any adjustments during the recruitment process, just let us know were here to support you. Android Developer, Android Engineer, Mobile Engineer, Mobile Developer, Mobile Application Developer, Android Software Engineer, Android Software Developer, Android App Developer, Kotlin Developer, Kotlin Engineer More ❯

Junior-Mid Level Node.js Software Engineer (Must have prior government experience) 12 month fixed term contract The Company At Amber Labs, we are a cutting-edge UK and European technology consultancy that prioritises empowering autonomy, promoting experimentation, and facilitating rapid learning to provide exceptional value to our clients. Our company culture is centred around collaboration, where all colleagues … times. Our team consists of highly-skilled cross-functional consultants, analysts, and support staff. Your Role Were on the lookout for a curious and motivated Junior-Mid Level Node.js Software Engineer to join our growing engineering team. This is a fantastic opportunity to work with modern technologies, learn from experienced mentors, and contribute to real-world projects from More ❯

Senior Software Engineer | Golang, Node.js, TypeScript, React & AWS | Fully Remote (Southwest preferred) | Salary 60-70k Would you like to join a fintech thats taking the pain away from an entire sector of the finance industry? This business was founded by someone with deep industry expertise and strong technical ability. They built the first version of their product … success. Since then, demand has surged, and theyve now developed Version 2 and rolled it out to a much larger user base. Theyre now looking for a new Senior Engineer to join the team as they continue to scale. Youll be an established Senior or a high-end Mid-Level Engineer whos on the verge of stepping up More ❯

Senior Product Engineer Remote First (Occasional travel to London) | 100k + 10% Bonus Python, TypeScript, GCP/AWS Are you a software engineer with a product mindset? Do you ask questions about what youre building, challenge assumptions, and care deeply about solving real user problems? If so, this is the opportunity for you. This is an opportunity … for a Senior Product Engineer to join a fast-growing AI and Data scaleup thats pushing the boundaries of innovation in the UK. Youll work alongside a team of like-minded engineers to build products that deliver high value to users and make a real impact in a niche, cutting-edge space. You will thrive here if you are … willingness to challenge the status quo. Excellent communication skills and a collaborative mindset. If this sounds like you, and you would like to learn more about the Senior Product Engineer position, then apply or get in touch today for more information. More ❯

Role: Senior Java Software Engineer (pref. Back-end) Salary: 85,000100,000 + equity + bens Location: UK Remote Sector: FinTech Start-Up About the Company Wedo are collaborating with a FinTech start-up. The founders have an unrivalled track-record of scaling successful businesses, largely across the FinTech sector. This product, focusing on Wealth Management, is set … on board to expedite design and development...the mentality is very much own it, build it, ship it and host it. The Team Circa 30-40 in total. One Lead engineer across both back-end and front-end. This position reports into the CTO. The Stack Java AWS/Heavily Microservices-led React-Typescript React-Native IaC - Terraform Agnostic mindset More ❯

We are currently working with a global consultancy, who are seeking a skilled Software Engineer to help drive the development and support of in-house applications, modernisation and development. About the Role Youll be involved in building and maintaining software solutions using modern technologies with a split of 50/50 between back and front end design. … role is primarily home-based and may occasionally require out-of-hours support. Key Responsibilities Design and develop applications using C#, .NET Core, and React. Follow and help define software development standards and best practices. Work with test-driven development, automated testing, and CI/CD pipelines. Support ongoing operations and contribute to various development projects. Collaborate with third … party software providers throughout the development lifecycle. Provide technical guidance and mentorship to less experienced developers. Required Skills Strong experience with C#, .NET Core, Azure, and test automation. Proficiency in JavaScript and a modern front-end framework (React preferred). Familiarity with microservices, containerization, and site reliability engineering. Solid understanding of Agile/Scrum methodologies and software design More ❯

Job Title: Software Engineer Location: Remote Remuneration: 42.79 per hour Contract Details: Temporary (3 months) Responsibilities: Develop an interactive 3D brain visualisation in the browser using WebGL, 3js, or similar technologies. Implement user interface components for users to select from a range of preloaded images, videos, and text. Integrate model output data from the research team to enhance … internal design system with slight modifications. Collaborate with design and research teams to iterate on UI/UX based on feedback for optimal user engagement. Technical Requirements: Experience in software design and development. Experience in Python, backend APIs, and web frameworks. Advanced front-end web development skills, including WebGL, React, GraphQL, and Relay. Solid experience in back-end development More ❯

a multi-tenant system used in both UK & US. As the development team keep pace with the company's international expansion plans, there's a role for an experienced Software Engineer that has opened up. There's a slight bias towards backend development but someone comfortable across the full stack would be hugely desirable. As one of twelve … developers, everyone has a voice and everyone has a contribution to make. Core tech stack: JavaScript/TypeScript, Node, Express, React, AWS What we are looking for: Strong software engineering experience (that probably looks like 5-6 years plus but we're not going to be purely rule out based on years on the clock) Good command of AWS … experience of integrations into multiple third parties through APIs Excellent command of Node.js and the ability to build scalable applications Appreciation of the wider concepts that go into making software great e.g. accessibility, monitoring, security etc Youll be required to implement both independent skill sets and work collaboratively as part of a small team A little bit more: Salary More ❯

Join a High-Growth Tech Start-Up | C++ Software Engineer | Six-Figure Potential | Fully Remote Were working with a fast-growing, tech-first start-up thats building high-performance software used by clients around the world. Theyre looking for exceptional C++ developers to join their small, world-class engineering team people who love solving complex problems, writing … academic background , ideally with a degree in Computer Science, Mathematics, Physics, or Engineering from a Russell Group or equivalent top-tier university . A passion for building efficient, reliable software and solving complex technical challenges. Self-motivated, innovative, and always looking to improve. If youre an ambitious C++ developer ready to join a fast-growth start-up and work More ❯