351 to 375 of 643 Permanent Senior Software Engineer Jobs

technology that bridges the gap between probabilistic machine learning and deterministic classical computing. To meet the demands of our increasing commercial traction, we are looking for a smart, dedicated senior software engineer to join our world-class team. We are looking for someone who thrives on diving deep into code, to solve challenging and novel problems. You … will have extensive software engineering experience, with exceptional coding ability ideally including experience in high-growth start-ups. This role will play a major role in developing our core capabilities, including working on how computers reason. You will work closely with other software engineers, research engineers and applied scientists in a heavily cross-functional environment. Required Exceptional coding … Java/Kotlin or Python. Previous experience working with complex algorithms and data structures. Experience in building well-tested code for production and a demonstrable history of advocating for software quality and evangelising best practices. Experience with leading the process from ideation to production for brand new software systems. Relevant degree: Computer Science, Mathematics, Engineering, STEM. Bias for More ❯

of both worlds, working within a close-knit team with autonomy while enjoying substantial financial backing from the larger enterprise. This organisation is currently in search of a skilled Senior Software Engineer in Test to spearhead streamlined testing and automation strategies. In this role, you'll be a linchpin in the team, taking charge of software delivery, adopting a DevOps culture to oversee the software lifecycle, release automation, and production observability. The tech stack includes Java on the backend with the Springboot framework, GCP managed through Terraform, and a containerised environment in Kubernetes. Your proficiency in TDD, BDD, Selenium, and Automation Testing will have an impact on a diverse range of business initiatives. More … the UK's fastest-growing sectors, with unparalleled opportunities for personal and professional development. It advocates the nurturing of talent and fostering of growth. Joining the team as a Senior, you'll embark on an exciting career path toward becoming a Lead. With coaching and guidance from your manager and a dedicated Learning and Development (L&D) team, you More ❯

of both worlds, working within a close-knit team with autonomy while enjoying substantial financial backing from the larger enterprise. This organisation is currently in search of a skilled Senior Software Engineer in Test to spearhead streamlined testing and automation strategies. In this role, you'll be a linchpin in the team, taking charge of software delivery, adopting a DevOps culture to oversee the software lifecycle, release automation, and production observability. The tech stack includes Java on the backend with the Springboot framework, GCP managed through Terraform, and a containerised environment in Kubernetes. Your proficiency in TDD, BDD, Selenium, and Automation Testing will have an impact on a diverse range of business initiatives. More … the UK's fastest-growing sectors, with unparalleled opportunities for personal and professional development. It advocates the nurturing of talent and fostering of growth. Joining the team as a Senior, you'll embark on an exciting career path toward becoming a Lead. With coaching and guidance from your manager and a dedicated Learning and Development (L&D) team, you More ❯

Great opportunity for a Senior Software Engineer to join a private equity backed tech company in Manchester as they scale in 2025. You’d join a product-based squad within a larger engineering function and would be given the opportunity to be involved in all aspects of the product you work on, from ideation through to deployment More ❯

for your career development and the impact we have within the community. So, whats your possible? Opportunity: This is more than just a job; its a mission. As a Senior Software Engineer you play a pivotal role in designing, developing and maintaining the critical infrastructure that powers our services. You will be self-driven and organised with … projects with complex challenges within a unique space. Youll be at the forefront of delivering core solutions that have real world impact. Our UK Cyber & Intelligence business combines modern software development approaches with a rich heritage and experience in the Defence and security sectors. Our customers have complex and sensitive data and information requirements requiring a mission partner who … context, delivering and sustaining a portfolio of challenging technology projects at scale and pace, supporting them through an ambitious digital transformation programme. My purpose; to lead a team of software engineers with the brightest minds, to push the boundaries and define possible together. Responsibilities: Designs, develops, documents, tests and debugs applications software and systems that contain logical and More ❯

career development and the impact we have within the community. So, what's your possible? Opportunity: This is more than just a job; it's a mission. As a Senior Software Engineer you play a pivotal role in designing, developing and maintaining the critical infrastructure that powers our services. You will be self-driven and organised with … with complex challenges within a unique space. You'll be at the forefront of delivering core solutions that have real world impact. Our UK Cyber & Intelligence business combines modern software development approaches with a rich heritage and experience in the Defence and security sectors. Our customers have complex and sensitive data and information requirements requiring a mission partner who … context, delivering and sustaining a portfolio of challenging technology projects at scale and pace, supporting them through an ambitious digital transformation programme. "My purpose; to lead a team of software engineers with the brightest minds, to push the boundaries and define possible together." Responsibilities: Designs, develops, documents, tests and debugs applications software and systems that contain logical and More ❯

Join us as a Senior Software Engineer for CIAM at Barclays , where you will develop a new digital platform capability, transforming our digital estate to create a market-leading digital experience centered around customers. This key role involves partnering with business-aligned engineering and product teams to foster a collaborative culture. To succeed, you should have: Extensive … acumen, strategic thinking, digital and technological expertise, and job-specific technical skills. This role is based in our London office. Purpose of the role To design, develop, and improve software that provides business, platform, and technology capabilities for our customers and colleagues. Accountabilities Develop and deliver high-quality, scalable, maintainable, and performance-optimized software solutions. Collaborate with cross More ❯

We're looking for a Senior Software Engineer who builds clean, reliable, and tested software. And who actually cares about solving user problems. You'll be part of shaping the product, not just writing code and will work closely with Product, Design, and Customer Success teams to do so. You'll also mentor other engineers and communicate … given the freedom to build what they think solves the user problem. To do that well, they understand why we're building something. What you'll do: Develop quality software across our stack, mainly in Ruby-on-Rails and React Native. Collaborate regularly with Product, Design, and Customer Success teams. Lead technical and architectural decisions. Document your work clearly More ❯

job is brought to you by Jobs/Redefined, the UK's leading over-50s age inclusive jobs board. A World-Changing Company Palantir builds the world's leading software for data-driven decisions and operations. By bringing the right data to the people who need it, our platforms empower our partners to develop lifesaving drugs, forecast supply chain … disruptions, locate missing children, and more. The Role As a Senior Software Engineer on Palantir's Identity team, you will design, develop, and maintain core authentication and authorisation services. Your work will enhance the security and usability of identity governance workflows and access management for Palantirians and our customers globally. Your approach will emphasise secure-by-design … principles, embedding security considerations into every phase of the software development lifecycle. By adopting shift-left security practices, you will proactively address security concerns early in the development process, ensuring that our systems are resilient against emerging threats. The Identity team is composed of engineers dedicated to reducing risk, minimising friction, and eliminating toil. Our primary focus is developing More ❯

NEW ROLE AVAILABLE - SENIOR RUBY ON RAILS SOFTWARE ENGINEER- PERMANENT Location: Farnborough GU14 Salary: £55,000 - £65,000 Working Pattern: Monday - Friday (Hybrid 2 days onsite) I'm working with a well-established company based in Hampshire who are looking for a Senior Ruby on Rails Software Engineer to join their team. The successful … candidate will take full ownership of software development, working on impactful projects with modern technologies such as Docker, Cloudflare, and Heroku. You'll be responsible for developing clean, scalable, and user-friendly applications, collaborating with cross-functional teams to deliver new features, and leading all phases of the development lifecycle. Key skills and experience: Proven Ruby on Rails development More ❯

NEW ROLE AVAILABLE - SENIOR RUBY ON RAILS SOFTWARE ENGINEER- PERMANENT Location: Farnborough GU14 Salary: £55,000 - £65,000 Working Pattern: Monday - Friday (Hybrid 2 days onsite) I'm working with a well-established company based in Hampshire who are looking for a Senior Ruby on Rails Software Engineer to join their team. The successful … candidate will take full ownership of software development, working on impactful projects with modern technologies such as Docker, Cloudflare, and Heroku. You'll be responsible for developing clean, scalable, and user-friendly applications, collaborating with cross-functional teams to deliver new features, and leading all phases of the development lifecycle. Key skills and experience: Proven Ruby on Rails development More ❯

our exciting opportunities and why MMS is a great place to advance your career. Visit or follow MMS on LinkedIn . We are looking for a passionate and motivated Senior Software Engineer (Statistical Backend) to take on a critical role at the interface between clinical data science and software development on our KerusCloud platform. (Office-based … hybrid or home-based option can be discussed) Responsibilities: To have a solid understanding of the KerusCloud codebase and architecture. Development, and maintenance, of novel software to aid the design of complex clinical research studies with ownership over new advanced statistical features: lead on gathering requirements. understand the concepts and communicate to the wider team. design solutions to fit … within KerusCloud. engineer secure, quality, and robust solutions. Support the generation and maintenance of quality documentation. Be an integral part of the KerusCloud development team, working closely with others. Support the continuous improvement of the team and wider company. Requirements: Essential: College graduate in a scientific, or mathematical, discipline which required the creation of repeatable coding for data analysis. More ❯

support, coaching, and AI to support our apprentices in achieving their goals? How can we make our internal development experience more scalable and delightful? You will enjoy being a Senior Software Engineer at Multiverse if: You care deeply about Software Engineering and want to improve in your craft You are motivated by having impact through your More ❯

alongside exceptional service, to deliver personalised experiences that meet our customers ever-changing needs today and in the future. Job Description We currently have a fantastic opportunity for a Senior Software Engineer to join our technology team! You will be our technical expert for a squad building software and customer experiences that are market leading and … testing and CI/CD Working with SRE engineers to build distributed systems with a focus on high availability, low latency and scalability (you build it, you run it) Senior member of esure’s engineering community, engaging in tech forums and driving tech change wider than your squad Qualifications We would love you to bring! Senior Developer experience More ❯

alongside exceptional service, to deliver personalised experiences that meet our customers ever-changing needs today and in the future. Job Description We currently have a fantastic opportunity for a Senior Software Engineer to join our technology team! You will be our technical expert for a squad building software and customer experiences that are market leading and … testing and CI/CD Working with SRE engineers to build distributed systems with a focus on high availability, low latency and scalability (you build it, you run it) Senior member of esure’s engineering community, engaging in tech forums and driving tech change wider than your squad Qualifications We would love you to bring! Senior Developer experience More ❯

Great opportunity for a Senior Software Engineer to join a private equity backed tech company in Manchester as they scale in 2025. You'd join a product-based squad within a larger engineering function and would be given the opportunity to be involved in all aspects of the product you work on, from ideation through to deployment More ❯

As a Senior Innovations engineer you will be developing software-based solutions to business problems in a small team of full-stack software engineers. These solutions will be aimed at ensuring TUV SUD is well placed to deliver future services in a timely, efficient and competitive manner. You will be developing tools that will be used … we push to digitize and automate our internal processes. As part of the Innovations Team, you will liaise with various parts of the business to provide new and innovative software solutions for internal company usage. You will be expected to input on software requirements, software implementation and propose effective solutions. You will also be expected to support … and guide software engineers with less experience than yourself. Where the vacancy is filled from within TUV SUD, a handover period will be required to allow for training and delegation of current responsibilities. Duties and Responsibilities: Writing C#/.NET software to automate manual processes and help improve efficiencies across the business. Functioning as a full-stack developer More ❯

company has garnered a number of high-profile corporate partners as it looks to develop their scalable robotics-based platform. As they expand, they are looking to recruit a Senior Software Engineer to take a technical leadership role with hands-on engineering responsibilities. The position is embedded within the robotics group of the company, taking project ownership … of advanced robotic subsystems and broader software integration. Work will be a combination of design, testing and delivery for software within electro-mechanical systems. Specifically, this will involve high-performance control systems for autonomous mobile robotics, machine vision systems, and robotics arms. Requirements Degree in computer science, electronics or similar AND demonstrable project expertise working on industrial robotic …/2 for robotic control systems and automation including network protocols. Experience of safety-critical systems used within automation. Extensive experience using Python for robotics. This is a senior role, so project leadership experience would be expected. This could include managing complex projects and leading multidisciplinary engineering teams. Interested candidates must hold full rights to work within the UK More ❯

R&D group of a Fortune 1000 Data Conglomerate is looking to hire a Senior Software Engineer to assist with a multitude of DARPA based projects for its Mclean based operation(2 days onsite a week). This person will working on all new green development projects utilizing an array of tools such as: JVM programming languages … great opportunity to work with other sound developers for an impactful cause and an active Top Secret clearance or above is required Required Skills & Experience 4+ years of professional software engineering experience Active Top Secret clearance or above Experience with JVM languages: Java(preferred), Scala, Groovy, and/or Python Experience with javascript frameworks: React(preferred), Angular, and/ More ❯

career development and the impact we have within the community. So, what's your possible? Opportunity: This is more than just a job; it's a mission. As a Senior Software Engineer you play a pivotal role in designing, developing and maintaining the critical infrastructure that powers our services. You will be self-driven and organised with … with complex challenges within a unique space. You'll be at the forefront of delivering core solutions that have real world impact. Our UK Cyber & Intelligence business combines modern software development approaches with a rich heritage and experience in the Defence and security sectors. Our customers have complex and sensitive data and information requirements requiring a mission partner who … context, delivering and sustaining a portfolio of challenging technology projects at scale and pace, supporting them through an ambitious digital transformation programme. "My purpose; to lead a team of software engineers with the brightest minds, to push the boundaries and define possible together." Responsibilities: Perform hands-on development and actively contribute to the code base including peer review of More ❯

career development and the impact we have within the community. So, what's your possible? Opportunity: This is more than just a job; it's a mission. As a Senior Software Engineer you play a pivotal role in designing, developing and maintaining the critical infrastructure that powers our services. You will be self-driven and organised with … with complex challenges within a unique space. You'll be at the forefront of delivering core solutions that have real world impact. Our UK Cyber & Intelligence business combines modern software development approaches with a rich heritage and experience in the Defence and security sectors. Our customers have complex and sensitive data and information requirements requiring a mission partner who … context, delivering and sustaining a portfolio of challenging technology projects at scale and pace, supporting them through an ambitious digital transformation programme. "My purpose; to lead a team of software engineers with the brightest minds, to push the boundaries and define possible together." Responsibilities: Perform hands-on development and actively contribute to the code base including peer review of More ❯

this using state-of-the-art technology and engineering to make it happen, considering the customer as the center of all that we do. We are looking for a Senior Software Engineer to focus on developing core features for the Roku platform UI. We are looking for someone with experience building high-performing applications and SDK components … who wants to code on a wildly popular consumer electronics platform.This is an excellent role for a senior professional who enjoys a high level of visibility, thrives on having a critical business impact, and is excited to work on a component that touches almost everything streamed on the Roku platform. About the team This team spends most of its … to our embedded UI development and underlying architecture Integrate third-party C++ libraries Investigate, diagnose and resolve issues within the Roku Platform We're excited if you have Relevant software development experience and a proven track record of designing and shipping high-quality software on an embedded platform. Extensive programming experience with C++ and Embedded Linux or Native More ❯

and AI-driven support across voice, mobile, and web platforms. It's a product that demands reliability, speed, and clarity - in the moments when it matters most. As a Senior Software Engineer I , you'll play a central role in building the backend systems that bring Axon Assistant to life. You'll work across real-time APIs … design, performance, and shipping features that support real people doing critical work. And you bring enough experience to know when to challenge, when to align, and how to build software that lasts. What You'll Do Design and build scalable, fault-tolerant backend services that support real-time AI experiences across Axon devices, mobile apps, and web interfaces. Collaborate … strong engineering culture built on trust, ownership, and execution. What You Bring Required Skills Bachelor's degree in Computer Science, Engineering, or a related field. 6+ years of professional software development experience, ideally in backend or platform teams. Strong proficiency in backend service development in Node.js , Python , Go , or similar languages. Experience designing and operating cloud-native systems (AWS More ❯

Senior Embedded Software Engineer | £60-70k | Kidlington | 1 day per week on-site My client is a rapidly growing, and already well established, company designing cutting edge analysis technology for high performance sectors. They have expanded their premises and design capacity, and are looking for an experienced embedded software engineer. Main duties: + Develop complex … embedded software and interface with hardware for new and existing products throughout the product life cycle. + Refactoring of firmware + Manage complex projects, supervise R&D staff, and collaborate with various departments to meet project objectives. Skills and Experience Required: + Ability to write high quality firmware and develop testing solutions + Experience with PCB design and layout More ❯

emerging technologies to provide innovative, user-focused solutions that empower organizations and end users to operate smarter, faster, and more securely in dynamic environments. Responsibilities Job Description: As a Senior Software Engineer, you will act as a technical expert contributing to the team's success in delivering robust, scalable applications. You will collaborate with stakeholders, team members … is a plus. Implement and manage distributed messaging systems like Redis, Kafka, or SQS. Implement JWT-based authentication/authorization; familiarity with x509 certificates and Keycloak is advantageous. Deploy software to hundreds of servers worldwide and support installation, configuration, migration, and operational data management. Provide remote troubleshooting support to system engineers daily. Inspire and influence teams and partners to … Familiarity with distributed messaging systems, including Redis, Kafka, or SQS. Experience implementing Authentication/Authorization with JWT; familiarity with x509 certificates and Keycloak is an advantage. Ability to deploy software to hundreds of servers worldwide as well as support the installation, configuration, migration, collection, and dissemination of operational data Experience with providing remote troubleshooting support to system engineers daily More ❯