326 to 350 of 894 Permanent Senior Software Engineer Jobs

About The Role Job Level: 9 UK Wide We are looking for a Senior Software Engineer who will be responsible for designing, developing, and deploying high-quality software solutions. You will work on complex software projects, contributing to the architecture, development, and improvement of software systems. This role involves mentoring junior engineers, collaborating with … cross-functional teams, and driving the adoption of best practices in software development. Responsibilities Design, develop, and maintain complex software solutions, ensuring they are robust, secure, tested and scalable. Contribute to software architecture decisions, ensuring alignment with project and business goals. Mentor and support junior engineers, helping to develop their skills and promote best practices. Collaborate with … cross-functional teams, including product management, UX/UI, DevOps, and QA, to ensure software meets business requirements. Implement and optimise CI/CD pipelines to enhance development efficiency and software quality. Conduct code reviews, providing constructive feedback to enhance team performance and code quality. Troubleshoot and resolve technical issues, ensuring software operates smoothly and efficiently. Stay More ❯

Senior Software Engineer (C++) We are currently working with a world-leading Media Technology provider, who partners with global broadcasters worldwide. The Role This will be working in the team that develops the core applications responsible for converting, formatting, and rendering all media assets on their platform. Requirements Extensive experience designing and implementing high-performance C++ software at a senior level. Demonstrable expertise in Video and Audio processing, supported by industry-specific experience. Proven track record in multi-threading and performance optimisation techniques necessary to deliver low-latency solutions Mainly Remote - Occasional work in the London Office. Salary - TBC If you are interested, please apply or email me directly: cnisbett@trg-uk.com More ❯

At Quest Global, we are actively looking for Principal Software Engineer to join one of our Defense customer based at Luton, UK. Principal Software Engineer Luton, UK Full Time Permanent Hire Hybrid: 4 days/week Onsite at Luton Job Description C++14 or higher versions Visual Studio 2019, VxWorks, IBM DOORS, Azure DevOps, Git Strong programming … expertise in C++14, with extensive experience using Visual Studio for development, debugging, and performance optimization. Proven ability to design, implement, and maintain embedded software on RTOS platforms such as VxWorks, including target integration and validation. Strong grasp of Object-Oriented Design (OOD) principles. Strong unit test skills using tools such as MS Test Framework. Experience in interpreting and managing … definition to verification. Proven ability to work closely with other teams (i.e. systems), translating requirements into technical deliverables and ensuring alignment with project goals. This position is for embedded software development in an end to end role focused on electronic warfare systems. As a software engineer, you will work within an integrated project team and be responsible More ❯

edge technologies and supported by a team of regulatory, quality, and clinical operations experts, ARC360 is designed to accelerate the initiation of complex clinical trials. Job Purpose As a Senior Software Engineer, you will play a key role in designing, developing and maintaining high performance cloud-based applications. You'll work with cutting-edge Azure technologies to … support our mission in precision medicine research. You will be a vital link between the software team and Internal & external stakeholders. Key Responsibilities Develop & maintain applications using .NET (C#), .NET Core, and Azure technologies. Collaborate with product managers, designers, and developers to create high-quality software solutions. Mentor junior members of the development team, providing expert support when … required. Contribute to design decisions for up-and-coming projects Become a vital link between the software team and key internal and external stakeholders. Design and manage MS SQL Server databases, optimizing performance and scalability. Implement Azure cloud services (App Services, Functions, Storage, DevOps). Participate in code reviews and contribute to software development best practices. Troubleshoot and More ❯

The Vacancy Are you a Senior Software Developer looking to make a real impact in healthcare technology? Do you want to work on meaningful products that support medical professionals and trainees across the UK? If so, this could be the perfect opportunity for you. We’re looking for a talented and motivated Senior Software Developer to … ll play a key role in building tools that support clinicians and trainees in their day-to-day work. Key responsibilities include: Designing, developing, testing, and maintaining high-quality software solutions. Collaborating with product managers, designers, and clinicians to translate requirements into technical specifications. Building and maintaining C#/.Net applications using best practices and design patterns. Developing RESTful … systems. Optimising application performance and conducting code reviews. Contributing to continuous process improvement within the team. Supporting DevOps practices including CI/CD and automated deployments. Troubleshooting and resolving software issues to minimise downtime. Staying up to date with emerging technologies and healthcare IT trends. Mentoring junior team members and supporting colleagues. Communicating clearly through documentation and technical proposals. More ❯

Senior Software Engineer, Network Reliability, GGN WANForms Google Dublin, Ireland Qualifications Bachelor's degree or equivalent practical experience. 7 years of experience in software development. Experience with solutions for traffic engineering resilience and fault tolerance for WAN Networking products. Preferred qualifications Master's degree, or PhD in Computer Science or related technical field or equivalent experience. … About the job Google Cloud's software engineers develop the next-generation technologies that change how billions of users connect, explore, and interact with information and one another. We're looking for engineers who bring fresh ideas from all areas, including information retrieval, distributed computing, large-scale system design, networking and data storage, security, artificial intelligence, natural language processing … UI design and mobile; the list goes on and is growing every day. As a software engineer, you will work on a specific project critical to Google Cloud's needs with opportunities to switch teams and projects as you and our fast-paced business grow and evolve. You will anticipate our customer needs and be empowered to act More ❯

lines across the sector while providing a decisive advantage to the warfighter. Come be a part of our mission! We at Northrop Grumman Missions Systems are seeking a skilled Software Engineer in Woodland Hills, CA with expertise in C programming and a strong understanding of software development on an Agile team. Experience with ADA and JIRA is … desired. The ideal candidate will contribute to the design, development, and maintenance of high-performance, reliable software systems in mission-critical environments. What You'll get to Do: Design, develop, and maintain software applications in C/C++. Utilize C/C++, ADA programming for systems requiring high integrity and safety compliance. Debug, optimize, and test software to ensure performance and reliability. Collaborate with cross-functional teams to define software requirements and architecture. Maintain and update documentation for software systems and processes. Work on a development team and perform code version control, reviews, and testing. This requisition may be filled at a higher grade based on qualifications listed below This requisition may be filled More ❯

Senior Software Engineer - Building APIs - RESTful API - AI Services - C# .Net - SQL - Azure We are seeking an experienced Senior API Developer with solid experience in designing and implementing API Infrastructure. This is an opportunity to work on cutting-edge AI infrastructure, make a significant impact on how to leverages AI technology at scale. The role suits … a technically strong Senior Software API Developer who enjoys building new solutions, solving complex integration challenges. Working with autonomy and technical ownership, you'll architect scalable, secure APIs that handle sensitive data while enabling rapid deployment of AI capabilities across the business. As a senior member of the team, you'll set architectural direction, establish API standards … CI/CD pipelines for safe, automated deployments Ensure compliance with data protection and security requirements Participate in code reviews and provide actionable, respectful feedback Skills, Knowledge and Expertise Software engineering experience with a focus on API design and development Deep expertise in C# .NET for building production APIs and services Strong SQL skills including database design, optimization, and More ❯

Salary: £55,000 – £60,000 Hybrid: 2 days a week in the office About the Company We’re working with a well-established technology business that develops enterprise-scale software used across the financial and insurance sectors. The company is modernising its platforms and strengthening its engineering capability to deliver high-performing, scalable systems that support major clients across … the UK. The Role As a Senior Software Engineer , you’ll play a key part in designing, developing, and improving large-scale software systems. This is a hands-on technical role where you’ll contribute directly to architecture and development, while supporting and mentoring other engineers. It’s an ideal opportunity for an experienced Java developer … Collaborate on architecture and system design decisions Coach and support other engineers within the team Promote high standards in coding and delivery practices About You You’re an experienced software engineer who takes ownership, communicates clearly, and thrives in a collaborative Agile environment. Essential: 5+ years of experience in Java development Strong knowledge of SQL and web services More ❯

Overview Quantum computing promises to transform the tech landscape; developing the right software to access and use it is essential to realising that potential. OQC is looking for a Senior Software Engineer to join our team to drive the scaling and development of our code and ensure that OQC is able to offer a truly seamless … via the cloud and direct access via data centres. This is a chance to contribute to the true, bleeding edge of the tech sector. You will be a seasoned Software Engineer who thrives on solving problems and stepping out of your comfort zone to drive forward projects. You have led projects through the entire development lifecycle and are … role is central to making access to Quantum Computing a reality today. Are you ready to help open that door? Responsibilities Leading the design, build, testing and implementation of software solutions to support our mission of making Quantum Computing accessible. Identifying opportunities to improve and apply best practice and balancing risks against progress in projects. Owning technical problems and More ❯

Senior Software Engineer - Dublin, Ireland Start:ASAP Location:Dublin Contract:12 months (potential extension) We're seeking an experiencedSenior Software Engineerto design, develop, and deliver high-quality software solutions in a fast-paced, agile environment. What you'll do: Analyse, design, and build secure, scalable applications Work with Java (8-17), Spring Boot, REST APIs … pipelines with Jenkins, Git, and automated deployment tools What you'll bring: Strong Java development skillsProven experience in microservices architectureCloud and containerization expertiseKnowledge of secure coding standards and modern software engineering practices This is a great opportunity to work on large-scale, high-impact systems in a collaborative, innovative team. Skillbase Group Ltd The Brewhouse, Old Bexley Business Park More ❯

benefit. The future is personalised benefits, and nobody can deliver them quite like Heka. We’re growing fast, and we’re looking for a proactive, pragmatic and well-rounded Senior Software Engineer to help build our success. 🚀 The role in a nutshell This role is for an all-round engineer who's happy to work on … all aspects of our software and the infrastructure and processes we use to deliver it to our users. You will have the opportunity to make an immediate impact, work on greenfield projects and be a key decision-maker in the technical direction of the company’s product. 💰 Salary £65,000 salary. ✅ Key Responsibilities: Designing, developing and deploying Heka’s … and implementing new technologies that improve the system. Mentoring other engineers in the team. Maintaining documentation. Providing technical support to the wider company. 🎯 What we’re looking for: A software engineer with extensive commercial experience developing and maintaining SaaS web applications . A full-stack technical skillset including TypeScript, React, Node.js, HTML, CSS, SQL and AWS at a More ❯

We are looking for a Software Development Engineer to join our Letchworth or Christchurch team! As our Software Development Engineer, you will perform all software lifecycle phase tasks from planning to release and subsequent maintenance and support. Be able to complete all allocated tasks within the time and budget specified within the work package definitions. … The successful candidate will be an experienced Software Development Engineer, and be able to make correct technical decisions that ensure compliance and quality while considering cost, schedule and risk. Location: Letchworth or Christchurch UK We Take Care of Our People Work-life balance through our Hybrid working, flexitime program and condensed work week (role dependent) I Paid Time … Health and Wellness Benefits I Learning and Development Opportunities I Competitive Pay I Bonus Scheme I Recognition I Employee Stock Purchase Plan I Inclusive & Supportive Culture * Your Challenge Perform software development tasks to the required quality, complying with company procedures and within time and cost constraints. Develop software planning documents. Develop software requirements and associated traceability. Develop More ❯

About the job Senior Software Engineer bij EAE Solutions Join our team and work on the future of sorting technologies! We are looking for you! Are you available 32 to 40 hours a week to pioneer in the development of advanced algorithms for optical measurement and control engineering? Then apply to: Senior Software Developer/ More ❯

Senior Software Developer - Chorley - Onsite role (flexible start and finish times) - C#, .Net, Javascript, SQL Server) £60,000 - £80,000 We’re proud to be partnering with one of our long-standing clients to find a skilled and passionate Senior Software Developer. This is a fully hands-on coding role with no management responsibilities. ideal for … someone who likes going from project to project and enjoys working across the full software development lifecycle, from requirements gathering to testing and deployment. Looking for someone with.. 5+ years of experience in software development with strong proficiency in C#, .NET Proven experience delivering end-to-end software solutions A flexible approach to solution building This is More ❯

Job title: C# Senior Software Engineer (VP) Client: Investment Firm Experience Level: 5+ years' Salary: - Up to £130k + Bonus Location: London (Hybrid) An elite investment client are searching for Senior C# Developers to join a group of the highest-regarded talent around! Role This is to build out a key risk management platform, that includes … development of several greenfield features and will involve the use of the latest frameworks within .Net Skills/Experience Proven experience working as a Software Engineer within the financial services domain Knowledge of C# .Net core Degree in Computer Science/Engineering is preferred! Experience with any web technologies including WPF or React is sought after too More ❯

Job title: C# Senior Software Engineer (VP) Client: Investment Firm Experience Level: 5+ years' Salary: - Up to £130k + Bonus Location: London (Hybrid) An elite investment client are searching for Senior C# Developers to join a group of the highest-regarded talent around! Role This is to build out a key risk management platform, that includes … development of several greenfield features and will involve the use of the latest frameworks within .Net Skills/Experience Proven experience working as a Software Engineer within the financial services domain Knowledge of C# .Net core Degree in Computer Science/Engineering is preferred! Experience with any web technologies including WPF or React is sought after too More ❯

building systems and tools that push the boundaries of what’s possible in medical imaging and analysis. We’re looking for engineers who want to do more than build software - those who want ownership, growth, and the chance to be part of a team that’s genuinely changing the way we see the gut. Role Overview As a Senior Software Engineer, you’ll take ownership of key components in Motilent’s advanced medical imaging platform, ensuring our viewer technology remains robust, performant, and scalable. You’ll collaborate closely with engineers, solution architects, and product leads to design and maintain high-quality, regulatory-compliant software that supports both clinical and research use. The role combines hands … competency records required for regulated work. Required Skills Bachelor’s degree (or equivalent) in Computer Science, Engineering, or a related technical discipline, and 5+ years of experience as a software engineer within a commercial environment. Production experience with React 18 and TypeScript, including strongly typed hooks, component composition, and modular architecture. WebGL or Canvas-based rendering expertise for More ❯

building systems and tools that push the boundaries of what’s possible in medical imaging and analysis. We’re looking for engineers who want to do more than build software - those who want ownership, growth, and the chance to be part of a team that’s genuinely changing the way we see the gut. Role Overview As a Senior Software Engineer, you’ll take ownership of key components in Motilent’s advanced medical imaging platform, ensuring our viewer technology remains robust, performant, and scalable. You’ll collaborate closely with engineers, solution architects, and product leads to design and maintain high-quality, regulatory-compliant software that supports both clinical and research use. The role combines hands … competency records required for regulated work. Required Skills Bachelor’s degree (or equivalent) in Computer Science, Engineering, or a related technical discipline, and 5+ years of experience as a software engineer within a commercial environment. Production experience with React 18 and TypeScript, including strongly typed hooks, component composition, and modular architecture. WebGL or Canvas-based rendering expertise for More ❯

Software Engineer - Python/FastAPI/React/Functional programming/Typescript Location: London, UK (Hybrid) Type: Full-time Level: Mid to Senior Salary: £70,000 to £100,000 Company: VC back Startup About the Role: This startup is building a cutting-edge platform to transform how engineers design physical products. Instead of creating one solution at … thousands of design alternatives. Faster and more intelligently than ever before. Looking for someone who enjoys writing clean, wellstructured code and has a genuine interest in engineering.. not just software, but how things are built in the real world. Backed by one of Europe's leading VCs and with a 4-year runway. This company has assembled one of … the strongest technical founding teams I've seen. Bringing together brilliant minds from Cambridge, MIT, and Google across Software Engineering, Data Science, Theoretical Physics, and Computational Geometry. Opportunities: Frontend or Backend Tech Stack within the engineering environment: Backend: Python, FastAPI, Pydantic, PostgreSQL, Docker Frontend: React, TypeScript, Vite Infrastructure: GitHub Actions, GCP, Kubernetes (optional) Paradigms: Functional programming, async APIs, event More ❯

Software Engineer – Next-Generation Derivatives Risk Platform 📍 Location: London (Hybrid – 1 day/week in office, flexibility for the right candidate) 💰 Day Rate: £850 per day 🧾 IR35: Outside 🗓️ Interview Process: Starts 12th November 2025 🚀 Start Date: 5th January 2026 CV's are not being reviewed until WC 3rd November We’re partnering with a global investment bank to … hire an exceptional Software Engineer to join a flagship team delivering a next-generation, high-performance derivatives risk platform . This is a mission-critical front-office role working on real-time distributed systems with exceptional technical standards. You’ll be part of a high-calibre team solving complex engineering challenges and shaping the future of risk technology … DevOps, CI/CD Emerging tech: WebAssembly, AI integration, and AI frameworks Systems: Cross-platform, distributed, scalable real-time environments This is a genuine technologist’s role — building critical software that combines engineering precision, scalability, and innovation. What We’re Looking For Very strong expertise in one of C#, Python or Java , ideally with working knowledge of another. Rust More ❯

Software Engineer – Next-Generation Derivatives Risk Platform 📍 Location: London (Hybrid – 1 day/week in office, flexibility for the right candidate) 💰 Day Rate: £850 per day 🧾 IR35: Outside 🗓️ Interview Process: Starts 12th November 2025 🚀 Start Date: 5th January 2026 CV's are not being reviewed until WC 3rd November We’re partnering with a global investment bank to … hire an exceptional Software Engineer to join a flagship team delivering a next-generation, high-performance derivatives risk platform . This is a mission-critical front-office role working on real-time distributed systems with exceptional technical standards. You’ll be part of a high-calibre team solving complex engineering challenges and shaping the future of risk technology … DevOps, CI/CD Emerging tech: WebAssembly, AI integration, and AI frameworks Systems: Cross-platform, distributed, scalable real-time environments This is a genuine technologist’s role — building critical software that combines engineering precision, scalability, and innovation. What We’re Looking For Very strong expertise in one of C#, Python or Java , ideally with working knowledge of another. Rust More ❯

Senior Product Engineer – Remote First (Occasional travel to London) | £100k + 10% Bonus Are you a software engineer with a product mindset? Do you question what you’re building, challenge assumptions, and focus on solving real user problems? This is the role where your work will make an impact. We are looking for a Senior Product Engineer to join a fast-growing AI and Data scaleup shaping the future of a niche, high-value market in the UK. You’ll work with a team of top engineers to build products that deliver tangible results for users and drive the direction of the business. In this role you will: Collaborate with engineers and product More ❯

Senior Embedded Linux Software Engineer An industry-leading technology developer is seeking a Senior Embedded Linux Software Engineer to join its multi-award-winning R&D team. In this role, you will be responsible for developing high-performance Embedded Linux systems for both new products and enhancements across a global customer base. You will … be working on cutting-edge embedded platforms and contributing to innovation in a fast-paced engineering environment. Key Responsibilities Design, develop, and test device drivers and application-specific software on Embedded Linux systems Debug system-level issues and collaborate closely with cross-functional engineering teams Board bring-up and evaluation of SoC-based hardware platforms Essential Skills & Experience Strong More ❯

Senior Embedded Linux Software Engineer An industry-leading technology developer is seeking a Senior Embedded Linux Software Engineer to join its multi-award-winning R&D team. In this role, you will be responsible for developing high-performance Embedded Linux systems for both new products and enhancements across a global customer base. You will … be working on cutting-edge embedded platforms and contributing to innovation in a fast-paced engineering environment. Key Responsibilities Design, develop, and test device drivers and application-specific software on Embedded Linux systems Debug system-level issues and collaborate closely with cross-functional engineering teams Board bring-up and evaluation of SoC-based hardware platforms Essential Skills & Experience Strong More ❯