626 to 650 of 1,337 Senior Software Engineer Jobs

Financial Times as one of Europe's fastest-growing companies for two consecutive years—and a UK Best Employer for 2026. As a Senior Software Engineer I at Thought Machine, you will own and deliver highly complex, end-to-end engineering work items. You will look beyond … your team, solving ambiguous problems, guiding less experienced engineers, and actively shaping our technical and product roadmaps. This is a role for an engineer who values clean, maintainable systems, embraces an egoless approach to collaboration, and is driven to deliver robust solutions to production. What You’ll Do Technical ...

Elsevier Limited Company is seeking a Senior Software Engineer I (Java & JavaScript) to design and develop scalable, high-performance applications within the Identity & Access Management team. You will contribute to authentication and authorization infrastructure that powers our global product suite, operating on AWS ECS and EKS. ...

Goodnotes Limited is seeking a Senior Software Engineer to join the Paddington-based AI-native product line. You’ll work directly with the founder and a small squad to design, build, test, ship, and operate features that harness AI agents. You will craft guides and automated checks … catch defects and performance regressions before code lands. You will contribute to iOS, Android, Mac, Windows, web, and backend stacks, shipping high-quality software with fast, deterministic checks and clear #J-18808-Ljbffr ...

seeking a Senior Software Engineer for the Unified Platform - Platform Services in London. The role focuses on defining, developing, and owning services that underpin DRW's Unified Platform, delivering end-to-end features with minimal oversight. The candidate will work across languages and technologies, emphasizing reliability, scalability ...

Elsevier is seeking a Senior Software Engineer to contribute to the Enterprise API Platform, improving developer experience and onboarding for internal and external users. You will mentor juniors, participate in design discussions, and ensure high-quality code across legacy and new platform components. You will collaborate across ...

Disney Streaming is seeking a Senior Software Engineer for Cloud Account Management in Manchester. You will design, build, and support automation tools to enable secure, self-service workflows in the AWS environment, while guiding DevOps teams on secure cloud practices. The role involves working with a talented ...

Catapult is seeking a Senior Software Engineer in London (hybrid) to advance the Perch camera system. You will write Python/C++ across devices and services, improving how we collect and analyze performance data at scale for real sports teams. You’ll work on 3D tracking ...

Wise is seeking an experienced senior software engineer to join Engineering Experience. You will build and operate AI-enabled tooling used by thousands of engineers, setting technical direction and mentoring teams to deliver reliable, scalable software. In this hands-on role you’ll own tooling across ...

Clearwater Analytics seeks a Senior Software Engineer to join the Beacon Core Engineering team. You will design, build, deploy, and maintain high-quality Python-based systems supporting Beacon Cloud, with emphasis on reliability, scalability and security. You will mentor teammates, lead design discussions, and work across cross ...

Cloudflare is hiring a Senior Software Engineer for the Workers Runtime in our London, UK offices. You will build features, improve performance, and own production code in a large-scale distributed system using C++ or Rust. Candidates should have strong CS fundamentals and hands-on experience with ...

digital environments where AI agents can explore, complete tasks, learn from failure and improve through active experience. The company works at the intersection of software engineering, simulation infrastructure and frontier AI, collaborating closely with leading AI research organisations. Its mission is to create the training environments and data needed … intellectual honesty, initiative, pragmatic problem-solving and a strong focus on execution are central to how the team operates. What the job entails As Senior Software Engineer, AI Platform, you will help design and build the foundational systems behind the company’s simulation and data-generation platform. ...

Addepar is hiring a Senior Software Engineer for the Alternatives Data Management team to build AI-powered data products and workflows for private markets. You’ll join a full-stack team delivering distributed services across the ADM stack. Applicants must have the right to work ...

Grafana Labs is seeking a Senior Software Engineer in Security Assurance to join our 100% remote GRC engineering team. You will build automated security programs, improve observability, and drive security controls across SDLC for a cloud-native SaaS platform. You’ll collaborate with engineers, security, and auditors ...

Citi in London is seeking a senior software engineer/lead to design and deliver complex application systems within a global finance platform. You will drive architecture decisions, mentor engineers, and collaborate with business units to implement scalable solutions. Join a hybrid work model with in-office ...

Beam Benefits, part of Principal Financial Group, seeks a senior software engineer to lead by example and build scalable benefits platforms. You’ll own design and development across the full stack, leveraging Ruby on Rails, React and AWS, with AI-assisted tooling to accelerate delivery while maintaining ...

T. Rowe Price in the United Kingdom is seeking a Senior Software Engineer to help deliver cloud-native applications used by investors. You will join the PMC team, collaborating with investment professionals to shape, build, test and deploy production software across the full lifecycle. You will ...

enabling API teams to onboard MCP servers and tools, manage credentials for these resources, and track usage through dashboards. About the Role As a Senior Software Engineer you are expected to participate in technical discussions to come up with a design to meet Product Requirements, develop test … complex system components. Complete complex bug fixes. Work closely with other development team members to understand complex product requirements and translate them into software designs. Successfully implement development processes, coding best practices, and code reviews. Operate in various development environments (Agile, Waterfall, etc.) while collaborating with key stakeholders. Resolve ...

Principle HR partners with a world-leading technology company to hire a Senior Software Engineer for its AR/VR research division in Cambridge. You will own and develop the software behind a specialist research lab, connecting prototype wearables and sensors to a distributed data platform ...

seeking a Senior Software Engineer for the Unified Platform – Trade Management and Trade & Order Processing in London. The role emphasizes building scalable, reliable services and solving complex, data‐driven problems within a fast-paced trading environment. You will work across platform and domain engineering areas, contributing … cross‐team initiatives and delivering high‐quality software with a focus on maintainability and rapid feedback. #J-18808-Ljbffr ...

Flooid Limited is seeking a senior software engineer to lead delivery in a hybrid UK environment. You'll own features end-to-end, design scalable full-stack solutions with Java, Spring, and Angular, and apply spec-driven development across the stack. The role emphasizes agentic development, automated ...

modern collision shops an integrated platform of leading diagnostics and calibration solutions, anchored by expert technicians and cutting edge, patented technology. Job Overview The Senior Software Engineer is a key contributor in developing applications for Opus IVS's cutting-edge products. Collaborating closely with a skilled team … contribute to multiple projects simultaneously. Clear communication and documentation are essential aspects of this role, supporting efficient collaboration and the success of our software development initiatives. Duties & Responsibilities: Design, maintain, and continue to develop applications using Python, Django/Flask, and PostgreSQL. Participate in code reviews to maintain quality ...

LexisNexis Risk Solutions is seeking a Senior Software Engineer to design, develop, and deliver scalable Java-based applications using Spring Boot, and cloud-native practices. You will collaborate with Product, UX, QA, and engineering teams to build robust applications and guide architectural decisions. You will mentor junior ...

TradingHub Group in London is seeking a Senior Software Engineer to join our Structured Data team and help drive the evolution of a platform that sits at the heart of TradingHub's products and services. This role is ideal for an engineer who enjoys working across ...

Testing Site - JPMC is seeking a Senior Software Engineer to advance data solutions within a fast-paced, agile environment. The role emphasizes building scalable data platforms, strong Java 17+ development, and cloud-based analytics using AWS. You will collaborate with data partners and cross-functional teams ...

Kainos is seeking a Senior Software Engineer (Node.js/TypeScript) to join our remote UK team. You will design, build, and maintain scalable services that power global applications. You’ll mentor juniors, contribute to architecture and product planning, and help steer technical direction in a collaborative, diverse ...