Senior Software Engineer Pythonjava Jobs in UK

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Staff Software Engineer

About the Job As a Staff Software Engineer at Omaze, you are a deeply experienced technical leader who sets the engineering direction for our social good platforms. You operate at the intersection of architecture, delivery, and people, defining how we build, not just what we build. You champion d ...

Founding Software Engineer

Translate the creativity and innovation of an in-depth whiteboard session into reality. VC backed, three co-founders need developers to come and build their product. Turning their idea into a working product and then shaping the company from less than ten people into the next tech unicorn. Your expe ...

Software Engineer (Platform)

About the Company Imagine the industries that have kept society running for decades, energy, logistics, manufacturing, suddenly supercharged by AI. Scary, efficient, right? That’s exactly what this AI startup is doing and they’ve already made impressive headway. They’re helping these crit ...

Principal Software Engineer

Be a force for good in technology, join a mission-focused team. Create meaningful change by leveraging your experience of software and team leadership. This is your opportunity to shape the future of healthcare and drug discovery by transforming how biological data is understood and applied. With a ...

BMS Software Engineer

BMS Software Engineer - Remote Working Are you a skilled BMS Software Engineer looking for your next challenge with the flexibility of remote working? This is an opportunity to join a forward-thinking engineering team delivering cutting‑edge building automation solutions across high‑profile proje ...

C++ Software Engineer

Job Description Are you interested in working on one of the most cutting‑edge defence and aerospace projects in the UK? We are enhancing the capability of fast jets such as the Eurofighter Typhoon, Saab Gripen and the emerging 6th generation fighter jet platform, Tempest. We are looking for top en ...

Software Engineer – 11508AW3

11508AW3£40k – 60k per year Software Engineer Hybrid working 2 days onsite per week We are seeking a talented and forward‑thinking Software Engineer to join our clients growing team. In this role, you will design, develop, test, and maintain both desktop and web ...

Staff Software Engineer

About Foundation Health Foundation Health is transforming healthcare through an AI-powered digital pharmacy platform that seamlessly connects operational infrastructure with high quality patient experiences. Our mission is to transform patient centric care by connecting fragmented infrastructure, ...

Software Automation Engineer

An environment where you would be encouraged to break things and then build them in a more robust fashion is the definition of progression in tech. Game changing projects, diving into the complex automation solutions that streamline the critical work of our clients Database team. Supporting a range ...

Rust Software Engineer

Rusty hands, sounds bad right? Maybe you want to get your hands dirty with Rust. The Rust programming language is exciting, it provides security, scalability and suitability for building heavy applications. If you have used Rust you know this, and I'm sure you are keen to continue. If not, it ...

Staff Software Engineer

Build the future of computing today. A place where right now isn’t fast enough. Genuinely, an environment unlike any other, collaborative, innovative and passionate, people making things happen day in day out to be the very best. A place that wants to build from scratch rather than use something else. ...

Software Engineer, Security

Summary Join the Apple Cloud Object Store (ACOS) team as a Software Engineer with a focus on security. The ACOS team, which is part of Apple Services Engineering organisation, is one of the most critical infrastructure teams at Apple, storing and serving petabytes of data across Apple's services. ...

Staff Software Engineer

Location London Employment Type Full time Location Type Hybrid Department Technology The role Following our recent $30M Series B funding, we're expanding the team to accelerate development of our legal technology products tha ...

Software Engineer III

We have an exciting and rewarding opportunity for you to take your software engineering career to the next level. As a Software Engineer III at JPMorganChase within the Cloud Foundational Services in Infrastructure Platform, you serve as a seasoned member of an agile team to design and deliver trus ...

Lead Software Engineer

Overview hackajob is collaborating with Kainos to connect them with exceptional professionals for this role. Join Kainos and Shape the Future. At Kainos, we’re problem solvers, innovators, and collaborators—driven by a shared mission to create real impact. Whether we’re transforming digital servi ...

AI Software Engineer

Location: UK-based hybrid role, occasional travel to site. Day to day Design, build and deploy AI and machine learning solutions that deliver measurable customer and business value. Develop, train and optimise machine learning and generative AI models for use in pr ...

Principal Software Engineer

Overview This is a hybrid role requiring 3 days per week in their London office. This opportunity doesn’t provide sponsorship. La Fosse are partnering with a market leading FinTech, known in the industry for their straightforward credit products & tools, designed to support customers who may be o ...

Software Engineer, Infrastructure

About the Company Harmonic is a startup building the world’s most advanced mathematical reasoning engine, recently achieving Gold Medal-level performance on the 2025 International Math Olympiad (IMO). Backed by some of the world's most prominent investors, we are intentionally scaling our elite t ...

Principal Software Engineer

Job Description We are building Lumen, our gas market intelligence and scenario modelling platform. It is in production with major energy and trading clients, and the next 12 to 18 months are about scaling it, hardening it, and pushing it past what our competitors are doing. We need a Pri ...

Fullstack Software Engineer

Fullstack Software Developer £600/day Inside IR-35 for an initial 6 months with extension likely London - 2-3 days per week on site Active SC Clearance essential We're looking for a full‑stack Java developer to join an established engineering team w ...

Software Engineer Platform

Faculty was founded in 2014 to build responsible AI solutions for diverse industries. We serve over 350 customers and value intellectual curiosity. About The Role As a Software Engineer in the AI Platform team, you will be the architect of the infrastructure that makes world‑class AI poss ...

Principal Software Engineer

Job Description We are building Lumen, our gas market intelligence and scenario modelling platform. It is in production with major energy and trading clients, and the next 12 to 18 months are about scaling it, hardening it, and pushing it past what our competitors are doing. We need a Pri ...

Software Engineer Java

Are you a passionate Java Developer looking to take ownership of your work in a collaborative, hands‑on environment? This is an opportunity to join a growing ERP integrations software provider based in Leeds. If you enjoy working on complex systems and new technology , bringi ...

Software Engineer .Net

We’re On the Beach! Since 2003, we've been rewriting the rules of how people discover, book, and experience their perfect getaway. What started as connecting people to short-haul beach holidays has evolved into something much bigger - premium beach destinations, long-haul adventures, and vibrant city break ...

Software Engineer (C++)

At Rockstar Games, we create world-class entertainment experiences. Become part of a team working on some of the most rewarding, large-scale creative projects to be found in any entertainment medium - all within an inclusive, highly-motivated environment where you can learn and collaborate with som ...

Founding Software Engineer

We're building the next generation of insurance comparison for AI. We're a small, early‑stage company with experienced founders, and we're looking for our next engineer. The role You'll own features end‑to‑end (front‑end, back‑end, and internal tools) with the CTO as your main collaborato ...

Software Testing Engineer

Overview Bristol Exciting opportunity to join the Integration and Systems Validation (ISV) team within the Weapon System Simulation and Experimentation (WSSE) department. Join us in driving innovation and excellence in the field by providing systems integration and testing for digital simul ...

Lead Software Engineer

Lead Engineer Location: Reading area Hybrid: 2 times a week in office Security Clearance: Must currently hold, or have recently held, SC or NATO Secret clearance Salary: £80k - £90k + bonus + healthcare We're looking for a Lead Engineer to join a business working on ...

Lead Software Engineer

Job Description The Opportunity Here at Leonardo, we are seeking experienced Lead Software Engineers to take on pivotal Technical Authority roles within our Integrated Sensors & Protection line of business, working on a range of defence projects. Your Impact This role ...

Java Software Engineer

Java Developer - multiple roles £510/day Inside IR-35 6 month contract Active SC required Remote with occasional travel to London for client meetings only - expensable We are looking for experienced fullstack Java Software Engineers ...

Product Software Engineer

Product Software Engineer Most “AI products” are demos. This one actually does the work. We’re partnered with a well-funded InsurTech rebuilding how complex claims get resolved, combining AI + human judgment to handle messy, real-world decisions that can’t be ...

FrontEnd software Engineer

Senior Frontend Software Engineer (React / TypeScript) Location: Bristol, UK Working model: Hybrid – 2 days on site per week (mandatory) Role Summary We are seeking Senior Frontend Software Engineers to work within cross‑functional feature team ...

Software Verification Engineer

Software Verification Engineer Locations: CheltenhamDuration: 12 months initiallyRate: Negotiable on experience (Inside IR35) Key Activities Software Verification mainly in the High-Level Requirement area Essential Respons ...

Staff Software Engineer

We’re not just building better tech. We’re rewriting how data moves and what the world can do with it. With Confluent, data doesn’t sit still. Our platform puts information in motion, streaming in near real‑time so companies can react faster, build smarter, and deliver experiences as dynamic as the world a ...

Principal Software Engineer

Key Responsibilities Define and evolve the overall software architecture and technology vision for the organisation. Provide deep technical guidance to multiple engineering teams across projects. Lead the design and delivery of large-scale distributed systems that integr ...

Principal Software Engineer

Location London - Hybrid - 1-2 days a week Type Permanent No Sponsorship Available Overview We are seeking a Principal Full Stack Software Engineer to lead the design, development, and delivery of scalable, high-performance applications across a moder ...

FrontEnd software Engineer

Senior Frontend Software Engineer (React / TypeScript) Location: Bristol, UK Working model: Hybrid – 2 days on site per week (mandatory) Role Summary We are seeking Senior Frontend Software Engineers to work within cross‑functional feature team ...

Lead Software Engineer

Overview Lead Software Engineer | Distributed Systems | Sustainable Cloud Native Platform Up to £130,000 per annum plus bonus plus stock Central London office Golang, Rust, C, Kubernetes, Linux, Cloud Native, Distributed systems... Are you a Lead Software Eng ...

Lead Software Engineer

Role: Senior Software Engineer / Lead Software EngineerLocation: Malvern (Hybrid; 3 days per week onsite)Salary: £60,000 – £65,000 per annum + BenefitsSecurity Requirement: Must be eligible for SC clearance We’re looking for a Senior/Lead Software E ...

Graduate Software Engineer

Graduate Software Engineer – Build Technology That Moves in the Real World Want to write code that doesn’t just sit on a screen—but powers real robots in real environments? At Dexory, our engineers build the systems behind autonomous robots that navigate warehouses, scan inventory, and ge ...

Software Engineer III

We have an exciting and rewarding opportunity for you to take your software engineering career to the next level. As a Software Engineer III at JPMorganChase within the Cloud Foundational Services in Infrastructure Platform, you serve as a seasoned member of an agile team to design and deliver trus ...

Graduate Software Engineer

About Sprint Reply Sprint Reply is the Reply Group company specialised in Intelligent Process Automation. Our mission is to create automation platforms capable of solving concrete business problems, supporting our customers in the transformation towards the Intelligent Enterprise and the adoption ...

Lead Software Engineer

Role: Lead Software Engineer Location: Malvern (Hybrid; 3 days per week onsite) Salary: £60,000 - £65,000 per annum + Benefits Security Requirement: Must be eligible for SC clearance We're looking for a Lead Software Engineer to join a ...

Lead Software Engineer

Job Title: Lead Software Engineer Location: London Experience: 8 years onwards About the Job you are considering: We are seeking an experienced software engineer with strong expertise in the Banking and Finance domain who will oversee the planning, execution, and s ...

AI Software Engineer

AI Software EngineerLocation: ManchesterRole Type: PermanentWork Setup: Hybrid - 3 days onsite What you'll do Design, build and maintain production-grade AI services, APIs and platforms used across European technology teams Develop AI-enabled developer tooli ...

Lead Software Engineer

We’re working with a fast-growing, product-led technology company building modern customer experience software. They are looking for a Lead Software Engineer to help design and build scalable backend systems, while also contributing to architecture and engineering direction within a small, high-per ...

Lead Software Engineer

Lead Software Engineer Up to £90,000 per annum plus bonus. Milton Keynes (Twice a week on site). VIQU has partnered with a growing SaaS organisation that is hiring a Lead Software Engineer to play a key role in shaping the technical direction of the product while leading a team of ...

Software Engineer (GenAI)

This is an fantastic opportunity for a Software Developer (GenAI) to join at an exciting time for AJ Bell as we expand the usage of AI within the business. Our GenAI development team are at the heart of this growth and ee have a strong team working environment, training and excellent career progression for ...

Lead Software Engineer

Hi, I’m Shun, founder and CEO of Anima. I left my career as a doctor because I was tired of seeing patients die from delays and misdiagnosis. Our mission is to deliver precision medicine to anyone, anywhere, in under 24 hours. Our platform already serves millions of patients and 10xs the capacity o ...

Lead Software Engineer

Lead the design, development, and delivery of enterprise software solutions for Public Sector customers. This role combines deep technical expertise, integration experience, and customer-facing delivery in compliance-driven environments. Qualifications Experience: 8–12 years in so ...

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    Senior Software Engineer Pythonjava Jobs in United Kingdom Job Search Guide, Trends and Insights