21 of 21 Senior Software Engineer Jobs in Lancashire

Senior Software Engineer Department: Engineering Employment Type: Full Time Location: Manchester, UK Description Interact provides enterprise-grade intranet software that connects over three million employees to leading global names like Levi's, Domino's, Teva Pharmaceuticals, and Technicolor. Our team of customer-focused problem solvers are passionate about helping organizations to communicate better. We do this … or a seasoned salesperson, we live the motto that we uphold for our customers: our people are our most valuable assets. We're on the lookout for a talented Senior Software Engineer to join our mission-driven Sideways6 squad. If you're passionate about building scalable, secure, and intuitive software that empowers employees to share ideas … and help shape the future of our platform - all while working in a culture that values innovation, purpose, and people. A little about you 5+ years of experience in software development, especially with API-first backends and ReactJS frontends. Proven track record in building scalable, high-performance web applications. Strong experience with C#, ASP.NET, .NET frameworks, ReactJS, Node.js, and More ❯

Senior Software Engineer (Data-Centric) Manchester (Hybrid - 2 x a week in office) £70,000 - £85,000 + 10% bonus + excellent benefits Our client is a global self-defence intelligence and technology organisation helping governments and defence agencies act with confidence. They use AI, graph databases, cloud, and search technologies to deliver faster, smarter decision-making. … We're seeking a Senior Software Engineer to join a growing, cross-functional technology team. What You'll Do Design, develop, and deliver high-quality, scalable software solutions. Work within an agile team on applications, APIs, and services used globally. Develop in one or more core technology areas: NoSQL (MongoDB, DocumentDB) Graph databases (GraphDB, Neo4j) Search … SageMaker, Bedrock) Cloud-based data engineering (AWS) Build and maintain cloud-native data pipelines, ensuring data quality, accuracy, and reliability. What We're Looking For 5+ years' experience in software or backend engineering. Proven ability to deliver reliable, scalable systems using cloud technologies (AWS preferred). Strong understanding of system design , API-first development , and SDLC best practices . More ❯

Senior Full Stack Software Engineer Want to help shape the future of digital customer experiences? We're working with a global consumer brand that is investing heavily in technology as part of its digital transformation. With millions of customers worldwide, they're building scalable platforms and applications to power the next generation of customer experiences. The Role … We're looking for a Senior Software Engineer to join the team and contribute to building innovative, customer-facing digital products. You'll work across both frontend and backend systems, collaborating with product managers, designers, and other engineers to deliver high-quality, scalable solutions. This is a great opportunity for someone ready to take ownership of features More ❯

Senior Software Engineer - Web Fully Remote (UK) Founding Engineer TypeScript Next.js React Tailwind Shadcn GCP Prisma An innovative, mission-driven LegalTech SaaS start-up is looking for a Senior Product Engineer (Web & Frontend) with deep experience in Typescript, React and Product development. Role Information: Salary : Up to £100,000 (DOE) + Equity Location : Fully … you'll craft exceptional UIs, architect APIs, and work across infrastructure - ideal for someone who thrives in startup environments, enjoys ownership, and wants to build in the agentic age. Senior Product Engineer - Highlights: Build and maintain full-stack features using TypeScript, Next.js, and React Design APIs and backend services with Prisma, Postgres, Redis, and GCP Implement responsive, accessible More ❯

UK from terrorism, cyber attacks, and espionage. At GCHQ, you'll do varied and fascinating work in a supportive and inclusive environment that emphasises teamwork. The role As a Senior Software Engineer, you'll play a pivotal role in solving mission critical challenges. You'll contribute to the architecture and design of both new and existing systems … establish and promote best practices, and deliver high quality software solutions. Drawing on your expertise in various software engineering methodologies, you'll introduce fresh ideas and innovative approaches that make a real impact at the core of our mission: keeping the UK safe, both in the real world and online. You'll bring a genuine enthusiasm for discovering … and applying new software engineering techniques. As part of a wider network of peers, you'll collaborate and learn from others. With your experience, you'll set the standard, introduce innovative ways of working, and identify new priorities. Whether leading and mentoring a team or acting as the technical expert within a high performing group, you'll apply your More ❯

ll be inspired, connected, developed and rewarded here. Everything that makes you unique is welcome; join us and let's build what's next - together! We are seeking a Senior Software Engineer to join our team in Manchester! Your Impact Software Development: Design, implement, and maintain scalable, maintainable, and efficient Python-based applications, focusing on backend … technologies, frameworks, and tools like Apache Spark, Databricks, Apache Pulsar, Apache Airflow, Temporal, and Apache Flink, sharing knowledge and suggesting improvements. Documentation: Contribute to clear and concise documentation for software, processes, and systems to ensure team alignment and knowledge sharing. Your Qualifications Experience: Professional experience in Python development or related software engineering roles. Python Proficiency: Strong knowledge of … to quickly resolve issues. API Design: Strong knowledge of RESTful API design and implementation; knowledge of GraphQL is a plus. Security Best Practices: Awareness of security best practices in software development. Team Collaboration: Strong communication skills and the ability to collaborate effectively with cross-functional teams. Cloud Services: Experience with cloud platforms like AWS, GCP, or Azure. DevOps Tools More ❯

This team spends most of its time working on customer focused features that improve the user experience, from content discovery and search to Roku pay and subscription to embedded software and firmware, and much more. Our product roadmap helps us accelerate our growth and scale, putting surprising new features into the hands of tens of millions of Roku users … and continues to innovate and lead the industry. While we are well positioned to help shape the future of television and streaming media worldwide, continued success stems from experienced software engineers like you developing core features for the Roku platform. Our new Senior Software Engineer, Embedded will be contributing extensively to our embedded UI development, algorithm … integration of third party code. You will also be engaged in developing tools which can help larger development community within Roku. A proven track record of shipping high quality software on embedded platforms is essential. This is a great role for a senior professional who enjoys a high level of visibility and thrives on great business impact. The More ❯

Senior Software Developer - Leyland - Onsite role (opportunity for a 4-day working week) - C#, .Net, Javascript, SQL Server) £65,000 - £83,000 We are working with one of our longstanding clients and seek a talented senior developer with lots of experience in the full lifecycle of software development, including requirements gathering, testing, and handover. If you More ❯

Senior Software Developer - Leyland - Onsite role (opportunity for a 4-day working week) - C#, .Net, Javascript, SQL Server) £65,000 - £83,000 We are working with one of our longstanding clients and seek a talented senior developer with lots of experience in the full lifecycle of software development, including requirements gathering, testing, and handover. If you More ❯

I'm looking for a Senior .NET Software Engineer to work on impactful, in-house platforms with a forward-thinking engineering team. My client is an established technology-driven company based in the North West of England, and are hiring a permanent .NET developer to help drive innovation and build robust software solutions that scale. The … Role You'll play a key role in developing and maintaining my clients internal software platforms, working across the full development lifecycle. The ideal candidate will have strong experience with backend technologies and a proactive approach to cloud-native development. Location This is a remote-first role, but we're ideally looking for someone based within a commutable distance … Stack C#/.NET (Core and Framework) Azure cloud services Kubernetes (AKS) RESTful APIs & Microservices SQL & NoSQL databases CI/CD & modern DevOps practices Experience Solid experience in .NET software engineering (C#) Strong cloud experience, ideally with Azure Familiarity with containerisation & orchestration (Kubernetes preferred) Good understanding of software architecture and clean code principles Comfortable working independently and as More ❯

Senior iOS Software Engineer - £400- Inside IR35 - Hybrid - Manchester RecOps is partnered with one of the world's largest broadcasters to bolster their existing engineering team with a Senior iOS Software Engineer. This role would be £400 per day, inside IR35 & would be hybrid with one to two days expected in Manchester. Skills/Knowledge More ❯

some of the world's most dynamic markets. Trusted by regulators and institutions worldwide, their systems monitor over a trillion events every single day. They are now seeking a Senior Software Engineer to join the Algos Team. In this role, you'll design and develop advanced algorithms that detect and prevent market abuse, fraud, and compliance breaches … design of scalable, low-latency systems Collaborate with quants, data scientists, and compliance experts Enhance and maintain a mission-critical global codebase What they're looking for 5+ years' software engineering experience (3+ in financial markets/algos) Strong coding skills in Java, Kotlin, C#, or C++ (Python a plus) Hands-on experience with real-time data processing & distributed … systems Strong understanding of software engineering and system architecture A proactive problem-solver with excellent collaboration skills Why Join? Fully remote role with global collaboration Work at the intersection of finance and crypto innovation Be part of a mission-driven company protecting millions of investors Ready to help build safer, fairer financial and crypto markets? Apply now. Desired Skills More ❯

some of the world's most dynamic markets. Trusted by regulators and institutions worldwide, their systems monitor over a trillion events every single day. They are now seeking a Senior Software Engineer to join the Algos Team. In this role, you'll design and develop advanced algorithms that detect and prevent market abuse, fraud, and compliance breaches … design of scalable, low-latency systems Collaborate with quants, data scientists, and compliance experts Enhance and maintain a mission-critical global codebase What they're looking for 5+ years' software engineering experience (3+ in financial markets/algos) Strong coding skills in Java, Kotlin, C#, or C++ (Python a plus) Hands-on experience with real-time data processing & distributed … systems Strong understanding of software engineering and system architecture A proactive problem-solver with excellent collaboration skills Why Join? Fully remote role with global collaboration Work at the intersection of finance and crypto innovation Be part of a mission-driven company protecting millions of investors Ready to help build safer, fairer financial and crypto markets? Apply now. While professional More ❯

some of the world's most dynamic markets. Trusted by regulators and institutions worldwide, their systems monitor over a trillion events every single day. They are now seeking a Senior Software Engineer to join the Algos Team. In this role, you'll design and develop advanced algorithms that detect and prevent market abuse, fraud, and compliance breaches … design of scalable, low-latency systems Collaborate with quants, data scientists, and compliance experts Enhance and maintain a mission-critical global codebase What they're looking for 5+ years' software engineering experience (3+ in financial markets/algos) Strong coding skills in Java, Kotlin, C#, or C++ (Python a plus) Hands-on experience with real-time data processing & distributed … systems Strong understanding of software engineering and system architecture A proactive problem-solver with excellent collaboration skills Why Join? Fully remote role with global collaboration Work at the intersection of finance and crypto innovation Be part of a mission-driven company protecting millions of investors Ready to help build safer, fairer financial and crypto markets? Apply now. While professional More ❯

Senior .NET Developer - Manchester (Hybrid) Join high-performing development teams of 250+ building real-time, large-scale systems used by millions of users across the UK, North America and South Africa. This is a chance to work on business-critical software that directly drives user engagement and revenue. Hybrid role based in Manchester city centre (2 days per … system architecture and compliance Key Responsibilities: Advocating TDD and solid development practices Providing technical leadership and peer development Peer code reviews and effort estimations Designing, building, and maintaining scalable software applications Writing clean, efficient, and maintainable code Debugging and resolving complex technical issues Collaborate with end-users to gather requirements and provide support What You'll Need: Experience working More ❯

Software Developer (.NET/Azure) - Manchester/Remote - up to £80k Tired of firefighting someone else's code? Want to actually see the impact your work has on customers? This team sits right at the centre of our growth - the bridge between product and client. You'll be building and integrating new components, rolling out product enhancements, and making More ❯

Backend Developer/Senior Backend Developer Liverpool (Hybrid, 2-3 days onsite) Join a high-performing engineering team that has transformed how this company builds software. Two years ago, they brought development in-house. Since then, they've delivered faster, cleaner, and smarter systems that have reshaped the business. They're now growing again and hiring for both mid … level and senior backend developers. You'll work on large-scale, event-driven systems built on .NET 8 , Azure , and microservices architecture . You'll have the chance to own projects, solve complex challenges, and make a visible impact. In this role, you'll: Develop and maintain scalable backend systems using .NET 8, .NET Core, and C# Design and More ❯

Thursday in our Head Office in Lancaster, work from home on Fridays (flexible working options will be considered) About the role We are looking for an experienced full stack engineer to join our established team. As part of an Agile development team, you will work closely with experienced engineers, UX designers, our R&D team, and the product owner … sound of the role and the organisation, and you think the below attributes describe you well, then we would love to hear from you. Are you: A full stack engineer with proven experience Experienced in developing extensible and maintainable code using design principles such as SOLID Excited to work in a small team where your contribution is significant Looking … to work on software that makes a real difference to our learners The full list of the key attributes required can be found in the job description. Further information Closing date: 26 September 2025 If you have any questions or would like to discuss this opportunity further, please contact Sean Hanratty, Software Development Manager at Sean.Hanratty at ascentis.co.uk. More ❯

to be at the heart of the energy transition. The aim is to enable customers to release £30bn of value per annum from distributed energy resources (DERs) through a Software as a Service (SaaS) subscription model with a global addressable market of £2.4 billion per year, by digitally connecting hundreds of thousands of DERs with energy markets. KrakenFlex is … to have experience/expertise in the following (in rough priority order): Python Django (or equiv. web framework) Domain modelling HTTP and REST APIs Writing robust and fault-tolerant software Celery and async processing Postgres Plus experience in the following would be a bonus: AWS Terraform, Packer, Consul Why else you'll love it here Wondering what the salary More ❯

Grows own capabilities by pursuing and investing in personal development opportunities and develops the capabilities of direct reports by working within existing development framework; provides specialised training or coaching in area of expertise to others throughout the organisation. Identifies shortcomings More ❯

clean, efficient, and maintainable code following best practices. Participate in code reviews and contribute to team-wide knowledge sharing. Design, implement, and manage CI/CD pipelines to automate software delivery. Integrate tools such as Jenkins, Git, Docker, and Kubernetes into the development lifecycle. Monitor, maintain, and optimize cloud infrastructure (IBM Cloud) supporting Java applications. Ensure the security, performance More ❯