676 to 700 of 1,348 Senior Software Engineer Jobs in the UK

United States Digital Space LLC is looking for a Senior Software Engineer to join their team in London, responsible for shaping and scaling session infrastructure. The ideal candidate will have strong experience in C++, designing backend systems. The role involves collaboration across teams and contribution to architectural ...

expanding its Engineering team and seeking a Senior Software Engineer to build and enhance modern web applications for EdTech SaaS solutions. You will work with the Engineering Manager and multiple teams through design, implementation, testing and release, while guiding junior engineers and shaping technical standards. The role ...

Cisco Webex Real-time Media Engineering Group in London is hiring a Senior Software Engineer to design, develop, test, and deliver new features for Webex products. The role emphasizes DevOps, microservices, and a data-driven approach to quality in a hybrid London office environment. You will work ...

scale. The Ad Engineering Team builds a highly scalable, real-time advertising platform that underpins Roku’s advertising business. We are hiring a Senior Software Engineer for the Advertising Platform to contribute to this mission. What You’ll Be Doing Work with a skilled engineering team … technical and non-technical audiences. Advocate for best practices across developers, QA, and infrastructure/ops. Promote platform innovation and reuse. Deliver top-quality software in a timely fashion. What We Expect You Have 10+ years of experience building large-scale and low-latency distributed systems. Proficiency in Java ...

Senior Backend Engineer - Node.js/TypeScript 12-Month Contract Fully Remote Outside IR35 We're looking for a Senior Backend Engineer to join an exciting fintech business, working on highly scalable, mission-critical financial systems. The role is heavily focused on Node click apply for full ...

www.tneigroup.com), an independent specialist energy consultancy providing technical, strategic, planning, and environmental advice to companies and organisations operating within the energy sector. The dedicated software and solutions team that develops IPSA and other tools based on it is based in Manchester and Kochi. We are actively looking … high‐calibre Senior Software Engineer with strong foundations in core and advanced C++ programming, alongside Python, to drive the development of next‐generation simulation and analysis tools for electrical power systems. If you live and breathe C++, enjoy solving complex engineering problems through code, and have experience ...

work-life balance as we do in making better software. We’re not just making better software. We’re making the making of software better. Collaborative, entrepreneurial and dedicated to problem solving, we bring the step change our customer need to sustain innovation. Our values challenge … enabled delivery platform on AWS that reduces friction, enforces consistency, and embeds governance directly into the engineering lifecycle. We are looking for hands‐on software engineer(s) who can help design and implement the controls, tooling, and engineering practices needed to support safe AI-assisted development ...

help clients become more efficient, increase profitability and give more customers an amazing experience. Want to be part of it? The Role: As a Senior Software Engineer, you'll be at the heart of product development and delivery. Building customer-facing AI agents that drive our platforms … agent orchestration frameworks, or similar. Proficiency with AI‐assisted development tools (e.g. GitHub Copilot, Cursor, Claude Code). 5+ years experience delivering software products at scale. A product‐focused mindset, you think about users and outcomes, not just code. Strong communication skills, you can articulate technical decisions clearly ...

free and premium content and entertainment to millions of users in the US and around the world. About the Role We are seeking a Senior Software Engineer with experience in building services at scale. With so many people relying on us for great movies, TV, and news … Roku engineers from across the company, and directly by consumers across millions of devices Work with Product/Design teams to iterate and build software, taking a concept from ideation to its production deployment and support Lead efforts to evaluate new technologies and continue to push for best practices ...

Contract Role – Senior/Lead AI Software Engineer Java & Python x 2 – London/Hybrid – 12 months initial – Inside IR35 PAYE Role Overview: Job Title: Senior/Lead AI Software Engineer Java & Python Location: Hybrid – 4 days onsite per week in London Contract Type … enterprise environments, including both machine learning and generative AI use cases, is highly desirable. Strong understanding of how AI can be applied to accelerate software development processes and improve engineering productivity is required. Familiarity with modern AI frameworks, tooling and deployment patterns for enterprise environments is highly desirable. Experience ...

Cisco's Webex Real-time Media Engineering Group in London is seeking a Senior Software Engineer to contribute to end-to-end development, testing, and delivery of new features for Webex products. You will work in a hybrid office setup, collaborating across DevOps, microservices, and AI-enabled ...

Marks & Spencer's Foods Product team is seeking a Senior Software Engineer to join their data platform and empower fast, reliable data delivery across supplier systems and pricing data. You'll design and ship scalable data services in Java/Micronaut, work with Kafka, and collaborate with ...

JOBS247 INC LTD in London is seeking a Senior Software Engineer to liaise with engineering divisions and ensure changes to services are reflected correctly. The role supports 24/7 network operations and is used by VARs, DPs and partners to monitor performance; you will work across ...

London is seeking a Senior Software Engineer to anchor the Plan-Apps squad. The role is hands-on and deeply rooted in code, shaping architectural direction and engineering standards across the team. This role owns feature design, mentors engineers, and helps stand up new services ...

London is seeking a Senior Software Engineer to join the Trading, Shipping & Supply Technology group. You will design scalable backend services and RESTful APIs supporting risk, pricing and trading workflows, with a focus on data and AI-powered solutions. The role emphasizes hands-on development, architectural input ...

Fortinet, Inc. is seeking a Senior Software Engineer to join the Agent Endpoint DLP team in London. The role focuses on kernel and OS-level development for the FortiDLP endpoint agent, with ownership of new features and maintenance of existing functionality. You will work in a cross ...

Chainalysis is building the data platform for blockchain analytics and seeks a Senior Software Engineer with deep PostgreSQL and Java Spring Boot experience to drive high-impact projects at scale. You will own a data ingest Java service, optimize PostgreSQL operations, and contribute to next-generation architecture ...

Mirae Asset Securities Co., Ltd. in London is seeking a MASUK Senior Software Engineer to build a real-time, event-driven platform for securities lending, repo and delta-1 trading. The role covers end-to-end development across Java server-side components, Python ETL pipelines, and external ...

workflows that cater to large institutions, further integrating across the Addepar ecosystem As we continue to scale, a need has opened up for a Senior Software Engineer who would bring to bear their unique expertise with the existing Engineering team, with exciting opportunities to extend the scope … Team: Strong investment in the best talent at the intersection of technology and finance Good experience on AWS or any other cloud platformExtensive professional software engineering experience building web applicationsBachelor’s degree in Computer Science or equivalent experienceExperience with Java backends is a plusExperience with AI agentic codingExperience with ...

LineTen is building a data-driven last-mile network and is seeking a Senior Software Engineer to craft robust backend services and frontend integrations. You will operate in a low-ceremony, high-trust environment, owning critical components and driving long-term software quality. You will work ...

government agencies, to protect their most valuable asset, their data, and is backed by top-tier investors. Summary Menlo Security is looking for a Senior Software Engineer to join our Chromium engineering team in support of MARS, Menlo's internal AI initiative. You'll bring strong C++ ...

everyone who works at the Museum feels they can thrive and feel valued and respected. About the role We are seeking a full-time Senior Software Engineer to lead the architecture, development, and operational delivery of the platform that powers SCRIBE (Structured Collection Records Interpretation … biological and Earth sciences is not required; the wider team will provide expertise. About you We are looking for an experienced full-stack engineer with substantial experience developing Python web applications and backend services using frameworks such as FastAPI or Flask, alongside modern JavaScript or TypeScript frameworks such ...

work in an inclusive environment that values curiosity, teamwork, and continuous learning, you’ll thrive here. What this role means for you As a Senior Software Engineer, you'll be at the heart of projects that matter. You’ll help design and shape the architecture of systems … programmer using Linux and open‐source technologies day to day. Experience working in Agile teams. Understands and applies DevOps/DevSecOps practices. Uses strong software testing techniques (e.g., TDD/BDD) and writes high‐quality tests. Translates user or business needs into robust technical solutions. Enjoys solving complex, often ...

entering an exciting period of growth. We're seeking a talented and ambitious Mid-Level Full Stack Developer to join us as Senior Software Engineer, with potential to move quickly into a Head of Technology role, pending performance. The ideal candidate will be hungry ...

Addepar, a global data and AI platform, is growing its Investor Solutions team in Edinburgh. As a Senior Software Engineer on Navigator, you'll help build the AI-first platform, extending the Navigator tool within the Addepar ecosystem to serve large institutions. You will collaborate with product ...