651 to 675 of 1,337 Senior Software Engineer Jobs

Senior Software Engineer - FinTech & Tokenization Platform

Location
Greater London, England, United Kingdom
Ctrl Alt is searching for a Senior Software Engineer to build the future of tokenization. You will design and maintain scalable solutions while collaborating with product teams. With over 5 years of experience expected, proficiency in TypeScript or JavaScript is essential. This position offers a dynamic ...

Senior Software Engineer: Lead Customer-Facing Systems

Location
Greater London, England, United Kingdom
Homeprotect is seeking a Senior Software Engineer to lead technical delivery for customer-facing systems and the claims workflow. You will own complex features, make architectural decisions, and mentor teammates to raise the overall capability of the engineering group. You’ll operate across frontend and backend stacks ...

Senior Software Engineer - AI-Driven Onboarding (Remote)

Location
Boston, England, United Kingdom
Toast is seeking a Senior Software Engineer for Onboarding to design and build AI-powered agents that streamline restaurant onboarding. You will work across payments, payroll, hardware, menus, and appointments, turning onboarding touches into reliable tools and evolving the backend for agent-driven flows. The role emphasizes ...

Senior Software Engineer - AI-Driven Infra

Location
Cambridge, England, United Kingdom
Alianza, Inc. is seeking a Senior Software Engineer to join its Infrastructure Engineering group in Cambridge. You will own and deliver complex projects end-to-end, working across architecture, deployment, and optimization in a high-availability environment. You will use AI-assisted tooling, mentor engineers, and drive ...

Senior Software Engineer: Mission-Critical, Hybrid (DV)

Location
United Kingdom
GCHQ is seeking a Senior Software Engineer to shape architecture and drive delivery of mission-critical software. You will contribute to design decisions, promote best practices, and deliver high-quality solutions across systems with a strong emphasis on modern engineering methods. You will work across teams, mentoring ...

Senior Software Engineer — Hybrid AI Web & Data Apps

Location
United Kingdom
SelectScience is hiring a Senior Software Engineer to lead hands-on product development across the main site, client reporting analytics, and new AI-enabled features. You will own end-to-end delivery, shaping architecture, and ensuring robust, scalable systems in a hybrid UK-based team. ...

Senior Software Engineer — Lead Complex Features (Hybrid)

Location
Salford, England, United Kingdom
QinetiQ Limited is seeking a Senior Software Engineer to lead the development of complex features within their dynamic team based in Salford, England. The role emphasizes autonomy and collaboration, requiring strong leadership skills and a focus on quality coding practices. Your responsibilities will include mentoring junior engineers ...

Senior Software Engineer, AI-Powered Platforms

Location
Manchester, England, United Kingdom
LADbible Group seeks a Senior Software Engineer to build and develop AI-powered products and business tools. You will lead features from discovery through deployment, collaborate with stakeholders and shape secure, reliable applications that solve real business needs. You’ll work across platforms, contribute to architectural decisions ...

Senior Software Engineer - AI & Simulation Platforms

Location
Cambridge, England, United Kingdom
Five AI is seeking a Senior Software Engineer to design and build tools and workflows that empower engineers to develop, run and evaluate simulation and AI workflows at scale. You will work across multiple languages and systems, contributing to architecture, pipelines and tooling while collaborating with product ...

Senior Software Engineer, Digital Workplace – Remote (EMEA)

Location
Douglas, Northern Ireland, United Kingdom
Canonical is seeking a Senior Software Engineer for the Digital Workplace team. You will design and build systems, services and dashboards, connecting data sources and enabling LLM-powered features. You’ll write specs, estimate work and uphold strong testing and documentation standards. You will mentor others, collaborate ...

Senior Software Engineer - AeroParker (Hybrid E‐commerce)

Location
Stockport, England, United Kingdom
Metropolis is seeking a Senior Software Engineer to join the AeroParker team to design and build backend services powering the pre-book parking and e-commerce platform. You will influence product direction, mentor engineers, and contribute to scalable, high-performance systems. The ideal candidate has 7+ years ...

Senior Software Engineer — Maritime Data Platform

Location
Cardiff, Wales, United Kingdom
leading maritime technology company located in Cardiff is seeking a mid to senior Software Engineer to enhance their maritime technology platform. You will work on impactful solutions that drive efficiency and safety in the maritime industry, utilizing your expertise in software engineering and cloud technologies. ...

Senior Software Engineer: Build Internal Tools & Platform

Location
Greater London, England, United Kingdom
NewDay in London is seeking a Senior Software Engineer to help build internal tools, services, and platform capabilities that empower engineering teams. You will lead complex work end-to-end, mentor others, and shape better engineering practices. This hands-on role explores AI-assisted development responsibly. … collaborate with engineering leadership to influence roadmaps, ensure scalability, and deliver robust software with a focus on maintainability and rapid delivery. #J-18808-Ljbffr ...

Senior Software Engineer

Location
Manchester, England, United Kingdom
level C++ frameworks, rendering pipelines, and system architectures that enable smooth navigation and rich animations. Our work sits at the intersection of hardware and software, where we optimize graphics rendering, memory management, and layout engines to ensure a consistent, lightning-fast experience across our entire device portfolio. We operate … environment, partnering closely with firmware and silicon teams to push the boundaries of what’s possible on embedded hardware. About the role As a Senior Software Engineer, you will be a key architect of the core systems that underpin Roku’s user experience. You will design ...

Senior Software Engineer - C#/.NET, Desktop & Cloud (Onsite 3x/wk)

Location
Aberdeen City, Scotland, United Kingdom
Leap29 is seeking a Senior Software Engineer to design, develop and modernise high‐performance desktop and cloud applications using C#/.NET. You will work hands‐on in a technically focused team, contribute to architecture discussions, code reviews and CI/CD practices, and help evolve existing ...

Senior Software Engineer - AI-Driven SaaS Core

Location
Greater London, England, United Kingdom
Clearwater Analytics, Ltd. is seeking a Senior Software Engineer to join the Beacon Core Engineering team. You will design, build, deploy, and maintain high-quality code, collaborating with cross-functional teams to enhance our Beacon Cloud platform and client tooling. The role emphasizes using AI agents ...

Senior Software Engineer: End-to-End & Impactful

Location
Newcastle upon Tyne, England, United Kingdom
Harvey Nash Group in the United Kingdom is seeking a Senior Software Engineer to join a growing Global Technology team, delivering high-impact solutions for clients in complex environments. You will own the full software development lifecycle, with a strong focus on engineering excellence, innovation ...

Senior Software Engineer – AI-Driven Gov Tech (Hybrid)

Location
City of Westminster, England, United Kingdom
Apolitical is seeking a Senior Software Engineer in London. You will own complex features across front end and back end, collaborating with Product, Design and government partners to deliver high-impact software. You will work in a hybrid setup (London office two days per week) and contribute ...

Senior Software Engineer - OpenSearch & AI Search (Hybrid UK)

Location
Greater London, England, United Kingdom
Moonpig Group is seeking a Senior Software Engineer for Manchester (ideally) or London, in a hybrid role (1-2 days a week). You will help the Search team build scalable experiences using OpenSearch, AWS and modern web technologies. You will mentor teammates, contribute to engineering principles ...

Senior Software Engineer - Cross-Platform Gaming Framework

Location
Manchester, England, United Kingdom
Light & Wonder is seeking a Senior Software Engineer in Manchester to help build a next‐generation, cross‐platform game framework powering experiences across web, mobile, desktop and land‐based gaming platforms. You will design and develop core framework components, influence architecture, and tackle complex performance challenges. ...

Senior Software Engineer — Own End-to-End Impact

Location
Greater London, England, United Kingdom
Perk is hiring a Senior Software Engineer to own end-to-end technical delivery in a global platform. You will shape roadmaps, design scalable systems, and uphold engineering standards across the stack. Your role includes mentoring, cross-team collaboration, and driving impactful technical decisions. We work with ...

Senior Software Engineer II - Real-Time Data & AI Events

Location
Greater London, England, United Kingdom
Cisco ThousandEyes is seeking a Senior Software Engineer to design, build and operate near real-time data streaming systems for global networking customers. You will create backend services and APIs, and orchestrate integrations across CI/CD and AI-enabled tooling. You will work with Java-based ...

Senior Software Engineer - MongoDB/Django, Remote, £700/day

Location
Manchester, England, United Kingdom
based AI scale-up is seeking a Senior Software Engineer with expert-level knowledge of MongoDB. This is a remote opportunity for an initial 6-month contract offering up to £700/day. You'll work autonomously in a collaborative DevOps environment, providing guidance on integrating Django ...

Senior Embedded Software Engineer

Hiring Organisation
KO2 Embedded Recruitment Solutions LTD
Location
Elsecar, Yorkshire, United Kingdom
Employment Type
Permanent
Salary
GBP 70,000 Annual
Senior Embedded Software Engineer - Modern C++/Embedded Linux Barnsley, South Yorkshire Up to £70,000 + benefits Relocation assistance available Do you write modern C++ every day, but still understand what's happening on the hardware underneath? This is a senior role in a small ...

Senior Software Engineer - Hybrid, Headless Retail Platform

Location
City Of London, England, United Kingdom
OneView Commerce in the United Kingdom is seeking a Senior Software Engineer to tackle the hardest problems in a platform serving thousands of shops globally. You will design and build end-to-end features for a resilient, payment-capable system, mentoring junior engineers and shaping technical direction. ...