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Senior Software Engineers Full stack in London Simple Machines

Skills and Experience Particularly strong in Kotlin or Java. Experience in designing and implementing data-driven APIs. Exposure to frontend development, especially React.js, Tailwind, REDUX, and Typescript. Past project experience with large-scale web services ...

Senior Software Engineer Cloud CI/CD, Python/Go/Node

The Office for National Statistics in Newport is seeking an experienced Software Engineer with a passion for Continuous Integration and Deployment in cloud applications. The role involves developing software solutions, mentoring colleagues, and ensuring quality through best practices. The salary ranges from £44, ...

Senior AI Processor Software Engineer Real Time Co Design

Huawei Technologies Research & Development (UK) Ltd is seeking a Senior Software Engineer to design real-time AI applications for Huawei processors. You will optimize AI chip architectures and collaborate with teams to integrate AI solutions. The ideal candidate has experience with C/C++ and Python, and knowledg ...

Senior Software Engineer (March 2025) in London Second Nature

Senior Software Engineer London, United Kingdom Posted about 1 year ago Tech Stack Amazon AWS NoSQL TypeScript React Native React Node.js JavaScript Qualifications Backend a ...

Senior Software Engineer — Build the Next Gen Travel Platform

A leading travel management company is seeking a Senior Software Engineer to work on their next-generation platform for business travel. The ideal candidate will have extensive experience in product development using Python/Django and React, with a strong focus on quality and simplicity. This position requires a ...

Senior Software Engineer Mission Critical Mobile Apps (Hybrid UK)

A global technology firm in Glasgow is seeking a Senior Software Engineer to develop complex full stack software solutions. The role is hybrid, allowing for work from home and office collaboration. Ideal candidates will have over 5 years of experience, strong programming skills in languages like Java or C#, and ...

Senior Software Engineer Buy Side London, GBR Posted yesterday

Senior Software Engineer - Buy-Side Location London Business Area Engineering and CTO Ref # Description & Requirements Bloomberg Buy-Side: Powering Global Asset Management at Scale Bloomberg Buy-Side delivers a comprehensive, multi ...

Senior AI/ML Software Engineer — Edge Compute & CI/CD

A technology firm in Leeds is seeking a talented engineer to join their team developing innovative solutions using Graph Stream Processors. The ideal candidate has 5-7 years of software development experience, strong proficiency in Python, and a deep understanding of AI/ML frameworks. Responsibilities include de ...

Senior Software/DevOps Engineer High Frequency Trading Firm London

My client, a highly prestigious hedge fund, is seeking a DevOps Engineer with a strong developer background to join their Platform Engineering team in London. Embedded within a high-performing technology function, you will play a key role in evolving a modern, GitOps-driven platform, workin ...

Senior Software Engineer II Build Global Runner Training Platform

We're putting together a talented team to build the #1 training platform for Runners We help everyday runners become outstanding by building an incredible app providing world-class training, coaching and community for everyone, whether you're improving your 5k time or training for ...

Senior Software Engineer, Total Fund Management (Public Markets) Hybrid

Une organisation d’investissement mondiale recherche un(e) Senior Software Engineer dans le domaine de la technologie des marchés publics. Le candidat idéal aura plus de 5 ans d'expérience, une forte maîtrise des langages de programmation comme Python, C++, et Java, et sera capable de concevoir et de soutenir de ...

Senior Software Engineer EO Munich/London (d/f/m)

Personio's intelligent HR platform helps small and medium-sized organizations unlock the power of people by making complicated, time-consuming tasks simple and efficient. Our team of 1,500 Personios is building user-friendly products that delight our 15,000+ customers and their 1.5 million employees. Ready ...

Senior Software Engineer: Cloud Native, End to End Ownership

Priority Pass is looking for a skilled software engineer to design and build scalable, cloud-native applications using TypeScript. As part of a cross-functional team, you will own features from design to deployment, with an emphasis on clean code and strong engineering practices. Ideal candidates should have 5+ ...

Senior Software Engineer Margin Technology Assistant Vice President Citi

Discover your future at Citi Working at Citi is far more than just a job. A career with us means joining a team of more than 230,000 dedicated people from around the globe. At Citi, you'll have the opportunity to grow your career, give back to your community and make a real impact. Job O ...

Senior Software Engineer UCaaS BSS/OSS, Cloud & CI/CD

A technology services company in the UK is seeking a Senior Software Engineer to lead the technical design and implementation of systems in the BSS/OSS space. Your role will involve coaching team members and ensuring high standards of cost control and security. Proven experience with Java, SQL, RESTful APIs, Agi ...

Senior Software Engineer, Retailer Finance Full or Part Time

Senior Software Engineer, Retailer Finance - Full or Part Time Manchester Autotrader is the most trusted, most visited automotive marketplace in the UK. A heritage brand and a tech innovator. We bring together vehicle buyers and sellers to give them real choices. Cars may be what we’re be ...

Senior Software Engineer Node/TS on AI Driven Cloud

A growing tech company in Greater London is seeking an experienced Senior Software Engineer to join their engineering team. In this role, you will design, develop, and operate business-critical features while mentoring fellow team members. The ideal candidate will have over 7 years of experience in back-end deve ...

Senior Software Development Engineer in Test United Kingdom, London

Senior Software Development Engineer in Test United Kingdom, London Why PlayStation? PlayStation isn’t just the Best Place to Play — it’s also the Best Place to Work. Today, we’re recognized as a global leader in entertainment producing the PlayStation family of products and ser ...

Senior Software Engineer (In Car Payments) in London Arrive

Senior Software Engineer (In-Car Payments) London, United Kingdom Posted 11 months ago Tech Stack Payments React Go JavaScript PHP Python TypeScript Requirements Highly skil ...

Senior Software Engineer, Lending Platform — Build Global Credit APIs

A global financial platform company is seeking a Senior Software Engineer to architect and implement large-scale systems for a modern lending platform. Your role will involve designing and maintaining robust services, focusing on credit products, and ensuring efficient API performance. Candidates should have a B ...

Mid / Senior Software Engineer Full Stack (React / TypeScript / Node.js)

£55,000 - £70,000 (dependent on experience) Cardiff / Remote (UK only) About Aforza Aforza aims to transform the lives of every consumer on the planet by helping the world’s best Consumer Goods companies become more agile, efficient, productive, and sustainable. We do this by intr ...

Senior Lead Software Engineer Athena Rates Risk and PNL

We are seeking an experienced Senior Athena Python Rates Senior Lead Software Engineer for the development team to work on Rates Risk and PNL business deliveries and optimization. In this role, you will design, develop, and integrate sophisticated solutions that support trading desks and back office functi ...

Senior Lead Software Engineer Back end Engineer Chase UK

hackajob is collaborating with J.P. Morgan to connect them with exceptional professionals for this role. At JP Morgan Chase, we understand that customers seek exceptional value and a seamless experience from a trusted financial institution. That’s why we launched Chase UK to transform digital banki ...

Senior Software Engineer II — Lead Cloud & AI Driven Apps

A leading cloud banking company located in London seeks a Senior Software Engineer to drive software development, guide teams, and ensure code quality. Candidates should have a Bachelor's degree in Computer Science, a strong proficiency in programming, and excellent communication skills. The successful applicant ...

Senior Software Engineer – Lead Cloud Platform for Net Zero

A leading sustainability company in London seeks a Senior Software Engineer to join their delivery team. The ideal candidate will lead the design and development of scalable software solutions to help the UK achieve Net Zero by 2050. Candidates should possess extensive experience with Python and cloud technologi ...

Senior AI Software Engineer (GenAI/LangChain) – On site London

A dynamic software consultancy in Greater London is seeking a hands-on Full Stack Engineer to lead teams in delivering high-quality software. You will collaborate closely with clients and internal teams, focusing on code quality and best practices including TDD and pairing. The ideal candidate has a strong track ...

Senior Software Engineer in Newcastle upon Tyne, Tyne & Wear

Senior Software Engineer (C++/Rust) - Up to £150,000 Company: Boutique Consultancy Location: Newcastle Pay: Up to £150,000 A deeply technical consultancy are getting ready to scale significantly. Around you they will build an entire team, tail ...

Senior Software Engineer Cloud, CI/CD for Public Data

targetjobs UK is seeking an experienced Software Engineer to join the Office for National Statistics, working between Newport and Titchfield. The role focuses on software development, utilizing Continuous Integration and Continuous Delivery methodologies. Essential skills include programming, systems design, and ...

Senior Software Engineer and Team Lead eSC/eDV Cleared

Introduction At IBM CIC, we provide technical and industry expertise to a wide range of public and private sector clients in the UK. A career in IBM CIC means you’ll have the opportunity to work with leading professionals across multiple industries to improve the hybrid cloud and AI journ ...

Senior/Lead Software Engineer — Real Time Ad Serving (LiveIntent)

Overview Zeta Global (NYSE: ZETA) is the AI-Powered Marketing Cloud that leverages advanced artificial intelligence (AI) and trillions of consumer signals to make it easier for marketers to acquire, grow, and retain customers more efficiently. Through the Zeta Marketing Platform (ZMP), our vision ...

Senior Lead Software Engineer: Trade Tech, React/JS Expert

J.P. MORGAN is seeking an experienced Software Engineer within F&O Execution Technology to enhance, build, and deliver trusted market-leading technology products. You will work in an agile team to tackle diverse challenges using your deep technical expertise. The ideal candidate will have extensive experience in ...

Senior Sales Executive QA Software Testing Private Sector UK

Senior Sales Executive - QA Software Testing - Private Sector - UK Senior Sales Executive - QA Software Testing - Private Sector - UK 2 days ago Be among the first 25 applicants Get AI-powered advice on this job and more exclusive features. Company Description</stro ...

Senior AI Software Engineer: Coding Agent for Game Dev

A leading tech company in Greater London is seeking a Sr. AI Software Engineer to architect an innovative AI Coding Agent. This role involves leading the development of a tool that accelerates game studio workflows by providing intelligent assistance in coding tasks. The ideal candidate will have over 8 years of ...

Senior Software Engineer, Backend GTPN Platform (Relocate to Singapore)

About Airwallex Airwallex is the only unified payments and financial platform for global businesses. Powered by our unique combination of proprietary infrastructure and software, we empower over 200,000 businesses worldwide—including Brex, Rippling, Navan, Qantas, SHEIN and many more—with fully i ...

Senior Software Engineer Remote UK, Own a New Project

We’re partnering with an exciting SaaS startup that’s gearing up for its next phase of growth, and they’re looking for a Senior Engineer to join them at a pivotal moment. This isn’t just another role, it’s an opportunity to step into a brand-new project where you’ll have real influence from day one. <p ...

Senior Software Engineer — Lead Scale & Mentorship (Go/TS/Python)

Snyk is searching for a Software Engineer with at least 7 years of commercial experience. The role involves analyzing, designing, and implementing complex solutions while mentoring junior engineers. Proficiency in Go, TypeScript, or Python is required, along with a strong commitment to code quality and effective ...

Senior Software Engineer AI/Edge Backend (On site UK)

A leading AI company in Greater London is seeking a Senior Software Engineer to lead backend and edge/IoT engineering in their Defence business unit. The role requires strong experience in Python and a compiled language, along with robust DevOps skills. You'll collaborate with cross-functional teams to deliver h ...

Senior Software Engineer Hybrid, Own End to End Features

Dals in Stretford, UK, is seeking a Senior Software Engineer. Join a product-focused engineering team responsible for end-to-end feature ownership, working closely with product owners and building modern web and mobile applications. You should have strong experience in full-stack development, excellent problem-s ...

Senior AI Software Engineer — Production Grade AI for SaaS

Bright Software Group, located in Belfast, is seeking a Senior Software Engineer for their AI team. You will architect scalable AI-powered applications, leveraging your full stack expertise. Responsibilities include leading technical decisions and mentoring other engineers. The ideal candidate has proven product ...

Senior Software Engineer: Lead C++/Embedded On Site Surrey

Premier IT is seeking a Senior Software Engineer to join their team in East Horsley, Surrey. This on-site position involves leading software design and development on complex defence projects. The ideal candidate will have a degree in Engineering or a related field, strong C++ skills, and experience in software ...

Senior Software Engineer — Own Impact with AI‑Driven Platform

Traveltechessentialist located in Edinburgh is seeking a Software Engineer to take ownership of feature lifecycles and drive technical excellence across the team. You will collaborate in cross-functional teams, focusing on delivering scalable solutions and ensuring coding standards are met. This full-time positi ...

Senior AWS Software Engineer – Cyber & Defence (4‑Day Week)

A leading aerospace and defense company is expanding its team in London, offering an exciting opportunity for Software Engineers (AWS). You will engage in developing cutting-edge technologies in Defence, Cyber, and Intelligence programmes. The role requires skills in AWS deployment and a solid understanding of s ...

Senior Software Engineer II — Build Next Gen Training Platform

A dynamic technology company in Greater London is seeking an experienced Engineer to architect, build, and deliver features across their platform. The ideal candidate will have at least 4 years of experience in frontend or backend development, with proficiency in TypeScript and React Native. The position offers ...

Senior Software Engineer Boutique Fixed Income Hedge Fund London

My client, a leading fixed income hedge fund, is seeking an experienced Python Developer to join their Business Engineering team in London. Working within a high-impact technology group, you will play a key role in building and enhancing applications that support one of the ...

Senior Software/DevOps Engineer High Frequency Trading Firm London

My client, a highly prestigious hedge fund, is seeking a DevOps Engineer with a strong developer background to join their Platform Engineering team in London. Embedded within a high-performing technology function, you will play a key role in evolving a modern, GitOps-driven ...

Senior software engineer, backend (Scala) (UK) in London Writer

Senior software engineer, backend (Scala) (UK) London, United Kingdom Posted over 1 year ago Tech stack Artificial Intelligence Scala Backend About this role Writer is seeking a talented Backend Engineer with deep funct ...

Senior robotics software engineer UK Oxfordshire ONLY no VISA

DO NOT APPLY IF YOU REQUIRE VISA SPONSORSHIP DO NOT APPLY IF YOU ARE NOT WILLING TO RELOCATE TO OXFORDSHIRE Company Description Autodiscovery is one of the fastest-growing robotics-focused companies in the UK, specializing in field robotics and embodied intelligence. As the UK sup ...

Senior Software Engineer (March 2025) in London Second Nature

Senior Software Engineer London, United Kingdom Posted about 1 year ago Tech Stack Amazon AWS NoSQL TypeScript React Native React Node.js JavaScript Qualifications Backend a ...

Senior Software Engineer (Python/ Automation) in Cambridge Imagination Technologies

Senior Software Engineer (Python/ Automation) Cambridge, United Kingdom Posted 10 months ago Tech Stack Automation Python Software Engineer Responsibilities Capable of developing performant software solutions in < ...

Senior Software Engineer — UK (Java/Python, React, CI/CD)

Northrop Grumman UK is seeking a Senior Software Engineer to design, develop, and maintain mission-critical software solutions. This position involves hands-on development, influencing architecture, and working with Agile methodologies. The role requires expertise in back-end technologies such as Java and Python ...

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    Senior Software Developer Pythonawsreact Jobs in United Kingdom Job Search Guide, Trends and Insights