426 to 450 of 1,230 Permanent Senior Software Engineer Jobs

United States Digital Space LLC is hiring a Senior Software Engineer to architect, implement and deploy end-to-end software services on a modern AWS serverless stack. You will help guide architectural decisions, deliver scalable APIs, and own critical components end-to-end. You will mentor ...

Marks & Spencer is seeking a Senior Software Engineer to join the Stock Domain team. You will lead modernisation of order management software, delivering scalable, secure solutions for millions of customers and thousands of colleagues. We value experts in JVM ecosystems, event streaming with Kafka, and cloud ...

Great opportunity for a Senior Software Engineer to join a private equity backed tech company in Manchester as they go through a scale-up. You'd join a product-based team within a larger engineering department and would be given the opportunity to be involved ...

Citi is recruiting a Senior Software Engineer (Java or Python) to help shape tech for global finance. You will work on full‐stack development, leveraging Spring Boot, Flask/FastAPI, and modern JS frameworks. Expect cloud-native design, Gen‐AI concepts, and involvement across architecture, infrastructure ...

central London with the business-centric atmosphere of the City, making it an attractive hub for professionals. Role Overview We're hiring a Senior Software Engineer, Web! We build websites that handle millions of requests per day, presenting high-quality market data to our members … testing. We care about automation. We are looking for like-minded individuals to join us.Your responsibilities will be: Design, implement, extend, and maintain web software functionality, often requiring advanced knowledge and experience. Create customer documentation. Act as project manager for a feature across multiple parties. Strong Python and Linux ...

need exceptional engineers to help us get there.The RoleTo meet the demands of our growing commercial momentum, we are looking for a smart, dedicated senior software engineer to join our team. We want someone who thrives on diving deep into code to solve challenging and novel problems. … will have extensive software engineering experience, with exceptional coding ability, ideally including experience in high-growth start-ups.This role will play a major part in developing our core capabilities, which span symbolic reasoning (decision trees, propositional graphs, knowledge graphs), document ingestion pipelines, and the APIs that expose these ...

Purpose of the Position As Senior Software Engineer , you will take ownership of designing, building and operating scalable, high-quality systems within our award-winning marketing platform. You will play a key role in shaping technical direction, influencing engineering practices, and driving improvements across the team … time, offering opportunities to gain deeper knowledge and experience within the online and affiliate marketing domain. Skills & Expertise Required Significant commercial experience in backend software engineering, with a track record of delivering production-grade systems. Experience with one or more backend languages such as Java, Python, .NET, or Node.js. ...

Labs is seeking a Senior Software Engineer to join a remote team focused on training next-generation AI systems. You will apply strong engineering skills in Python3, Java, Rust, Go, TypeScript, and possibly C++ to build scalable solutions that shape how models learn and perform. The role … emphasizes high-quality, real-world input and collaboration with a distributed team to deliver maintainable software across modern stacks. #J-18808-Ljbffr ...

Senior Software Engineer role in Nottingham hybrid: you'll design and deliver scalable cloud-based HR and payroll solutions on Microsoft Azure, shaping architectural direction and mentoring engineers while collaborating with Product Managers, UX Designers, and Test Engineers. You’ll drive quality, security, and performance across … SaaS platform used by customers across the UK and beyond, joining a cross-functional team that embraces AI tooling and modern software practices. #J-18808-Ljbffr ...

streaming products and platforms. This includes product engineering, media engineering, quality assurance, engineering behind personalization, commerce, lifecycle, and identity. Job Summary: As a Senior Software Engineer on the Build Tooling Infrastructure team at Disney Entertainment & ESPN Product & Technology (DEEPT), you will design and develop custom tools … maintain mission-critical infrastructure that enables application teams to deliver software quickly and reliably. Our team manages all aspects of CI tooling for DEET, including version control, CI servers, artifact storage, and cross-environment secrets management. We're seeking a mid-level engineer with a solid foundation ...

streaming products and platforms. This includes product engineering, media engineering, quality assurance, engineering behind personalization, commerce, lifecycle, and identity. Job Summary: As a Senior Software Engineer on the Build Tooling Infrastructure team at Disney Entertainment & ESPN Product & Technology (DEEPT), you will design and develop custom tools … maintain mission-critical infrastructure that enables application teams to deliver software quickly and reliably. Our team manages all aspects of CI tooling for DEET, including version control, CI servers, artifact storage, and cross-environment secrets management. We're seeking a mid-level engineer with a solid foundation ...

streaming products and platforms. This includes product engineering, media engineering, quality assurance, engineering behind personalization, commerce, lifecycle, and identity. Job Summary: As a Senior Software Engineer on the Build Tooling Infrastructure team at Disney Entertainment & ESPN Product & Technology (DEEPT), you will design and develop custom tools … maintain mission-critical infrastructure that enables application teams to deliver software quickly and reliably. Our team manages all aspects of CI tooling for DEET, including version control, CI servers, artifact storage, and cross-environment secrets management. We're seeking a mid-level engineer with a solid foundation ...

IRIS is seeking a senior software engineer specializing in C++/C# with WPF/XAML experience to join the Accountancy Solutions unit in an Agile environment. You will contribute to an integrated suite built around a core SQL database, delivering user stories and ensuring quality through ...

Fortinet is seeking a Senior Software Engineer to join our Cyber R&D team in the United Kingdom. You will work on the FortiDLP endpoint client software, focusing on feature development, code quality, and collaboration with cross-functional teams. We value engineers with strong programming skills ...

Associates is seeking a Senior Software Engineer with SC clearance to join a defence-focused team in the Farnborough area. You will develop secure applications, design backend systems and drive cloud deployments on AWS or Azure. Join a mission-critical environment where your work directly supports national ...

invites a Senior Software Engineer to join our digital assets team. You will design, build, and secure full-stack solutions—from APIs to user interfaces—supporting treasury automation, wallet inventory, and custody integrations. You’ll own the lifecycle from development through production, collaborating with trading desks ...

leading deep-tech company is seeking a Senior Software Engineer to join their Core Services team in London. The ideal candidate will be responsible for building foundational systems for an AI-driven simulation software platform. Responsibilities include designing authentication systems, implementing access control models, and maintaining … telemetry infrastructure to ensure high observability. Candidates should have strong foundations in software engineering, expertise in Golang and Python, and a passion for engineering excellence. #J-18808-Ljbffr ...

leading investment management firm based in Greater London is seeking a Senior Software Engineer to design and build resilient systems. The ideal candidate will have 5+ years of experience in software development, particularly with cloud-distributed and event-driven architectures using C#/.NET. A background ...

POSITIONWe're looking for a Senior Software Engineer to join our Sportsbook Core Apps engineering team. You'll be working on foundational engineering, focusing on improving the underlying frameworks, tooling, and performance that enable FanDuel to deliver an exciting and innovative customer experience.Working with our React Native … contributing to collaborative technical standardsA quality-focused mindset with strong problem-solving skills and the ability to evaluate trade-offs in ambiguous situationsAdditionally, our Senior Engineers can:Contribute meaningfully to technical design discussions and propose pragmatic solutions aligned with our technical visionTake ownership of delivering platform improvements ...

looking for a Senior Software Engineer to join our team building and operating the core data platform that powers our business. This platform sits at the heart of everything we do, delivering high-quality, real-time market data to systems and teams across the organisation.If you enjoy ...

Known is hiring a Senior Software Engineer to design and build full-stack Python applications, including FastAPI APIs, and to deploy containerized services on Kubernetes. You will work with PostgreSQL and Snowflake, develop ETL pipelines with Argo Workflows, and collaborate with data scientists and product managers across ...

Indra in the United Kingdom is seeking a Senior Software Engineer to join the Air Traffic Management team, contributing to safety‐critical distributed software used in live ATC environments. You will apply AI‐assisted development tools, maintain traceability from requirements to tests, and drive development, integration ...

working with us can mean deeper job satisfaction, better rewards, and a great quality of life inside and outside of work.Job Title:Senior Principal Software EngineerReporting To:Dir. Engineering, Product Integrity & Tech Bus. DevelopmentWork Schedule:Hybrid – Tewkesbury, GBRAbout Moog Aircraft GroupMoog Aircraft Group is a world leader … efficient flight. As part of our team, you’ll work on cutting-edge technologies that power next-generation aircraft.About the RoleWe are seeking a Senior Principal Software Engineer to lead the development of software for advanced flight control and actuation systems. This role requires deep expertise ...

working with us can mean deeper job satisfaction, better rewards, and a great quality of life inside and outside of work.Job Title:Senior Principal Software EngineerReporting To:Dir. Engineering, Product Integrity & Tech Bus. DevelopmentWork Schedule:Hybrid – Tewkesbury, GBRAbout Moog Aircraft GroupMoog Aircraft Group is a world leader … efficient flight. As part of our team, you’ll work on cutting-edge technologies that power next-generation aircraft.About the RoleWe are seeking a Senior Principal Software Engineer to lead the development of software for advanced flight control and actuation systems. This role requires deep expertise ...

Weekday's clients Min Experience: 6 years Location: London JobType: full-time We are seeking a highly skilled and experienced Senior Software Engineer with deep expertise in Python to join our growing engineering team. In this role, you will be responsible for designing, developing, and maintaining scalable … mentoring junior engineers. Key Responsibilities Design, develop, and maintain robust, scalable backend systems and APIs using Python. Lead end-to-end development of complex software solutions, from concept to deployment. Write clean, efficient, and reusable code following best practices and coding standards. Collaborate with cross-functional teams including product ...