Senior Java Python Engineer Jobs in UK

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Senior Systems Engineer — Hybrid: Lead Design and Validation

Energy Jobline CVL in Barnstaple is seeking a Principal Systems Engineer to lead technical initiatives throughout the design and development phases of products. This role combines flexible working options with a salary of up to £80,000 depending on experience. Your responsibilities will include providing technic ...

Senior AI Engineer: Architect & Deliver Production Grade AI

NewDay is hiring a Senior AI Engineer to design and implement production-grade AI systems in Greater London. The role focuses on embedding AI into business processes, contributing to technical direction, and ensuring systems are robust and scalable. Candidates should have proven experience with generative AI and ...

Senior CE&I Design Engineer Nuclear Safety Leader

Westinghouse Electric Company is seeking a Senior Control, Electrical & Instrumentation (CE&I) Design Engineer in the United Kingdom. You will lead multidisciplinary teams to deliver high-quality CE&I engineering designs for nuclear facilities. Key responsibilities include managing CE&I design activities, ensuri ...

Senior Test Engineer Hybrid, QA Automation & Testing Lead

Driver and Vehicle Licensing Agency (DVLA) in Swansea is seeking a Senior Test Engineer to oversee independent testing activities across projects. This hybrid role pays £44,241 to £58,997, including a Digital and Data allowance. Responsibilities include guiding appropriate testing approaches and building reusabl ...

Senior React Native Engineer — Luxury Mobile Experience Lead

MILE, located in Greater London, is searching for a Senior React Native Engineer to define the luxury mobile commerce experience. This role requires a high level of proficiency in React Native, especially in developing seamless user interactions that feel native across iOS and Android. You will own various aspec ...

Senior Go + React Full Stack Engineer — Scale Microservices

Xapien is seeking a Fullstack Engineer (Go + React) to enhance their platform as they grow rapidly in London. Key responsibilities include designing scalable microservices and developing React components, collaborating closely with diverse teams to turn complex needs into solutions. Ideal candidates have strong ...

Senior Full Stack Engineer — AI‑First FinTech Solutions

A leading global financial services company is seeking a Senior Specialist, Full-Stack Engineer in Manchester. You will design and maintain high-quality applications while contributing to agile teams. The role demands strong skills in software development across front-end and back-end technologies, problem-solvi ...

Senior Cloud Engineer for AI/ML Deployment (AWS)

A leading global financial services firm in Greater London seeks a Software Engineer for their AI/ML Deployment Platform. The role involves designing and developing cloud-native solutions to support model deployment organization-wide. Responsibilities include building infrastructure solutions, developing APIs, a ...

Senior EC&I Engineer – Lead, LV & Protection Systems

NMS Recruit Ltd t/a Russell Taylor Group in Glasgow is looking for a Senior / Lead EC&I Engineer to drive projects across the UK energy sector. The role demands strong hardware design experience and the ability to produce engineering drawings, alongside knowledge of Protection & Control systems. This position of ...

Senior Full Stack Software Engineer (Forward Deployed, GPS)

Scale’s rapidly growing Global Public Sector team is focused on using AI to address critical challenges facing the public sector around the world. Our core work consists of: Creating custom AI applications that will impact millions of citizens Generating high-quality training data f ...

Senior Software Engineer: Build Scalable, Event‑Driven Backends

A global premium chauffeur service is seeking a Senior Software Engineer to develop and improve services supporting their platform. The ideal candidate has over 5 years of experience in Ruby or Go, understands the HTTP protocol, and is familiar with REST APIs. Responsibilities include optimizing performance and ...

Senior Rail E&P Engineer – Fixed Plant Lead

WSP in the UK & Ireland is seeking a Senior/Principal E&P (Fixed Plant) Engineer based in Glasgow. The role involves leading Fixed Plant design projects, managing technical teams, and providing expert advice to clients. The ideal candidate will have strong project management skills, technical knowledge in electr ...

Senior Rail E&P Engineer – Fixed Plant Lead

WSP in the UK & Ireland is looking for a Senior/Principal E&P Engineer to join our Rail Engineering Services team. You will lead Fixed Plant aspects on various projects, oversee design lifecycle, and support both internal teams and clients. Ideal candidates will demonstrate experience in Fixed Plant Design, proj ...

Senior Rail E&P Engineer – Fixed Plant Lead

WSP in the UK & Ireland is seeking a Senior/Principal E&P (Fixed Plant) Engineer to join their Rail Engineering Services team. This role involves leading the Fixed Plant aspects of multiple projects, overseeing design processes, and managing stakeholder relationships to ensure successful project delivery. Candid ...

Senior EC&I Engineer Industrial Door & Safety Systems

TipTopJob is seeking an experienced EC and I Engineer in Clitheroe. The ideal candidate will specialize in the design and maintenance of automatic door and access systems, ensuring adherence to safety regulations. Responsibilities include leading multi-departmental projects, conducting site assessments, and desi ...

Senior Security Engineer (Tech for Good) Remote/Azure

Trust In SODA seeks a Senior/Principal Software Engineer to join their mission-driven team in combatting social challenges through technology. This role offers autonomy in a remote-first environment with occasional office meetings in London. Key qualifications include strong DevSecOps and OOP skills, proficiency ...

Senior Mechanical Engineer, Critical Systems & Net Zero Design

Principal Mechanical Engineer - Critical Systems Ramboll is ranked a Top 10 consultant in the UK and has around 2,000 bright minds working across multiple offices to apply their passion to deliver innovative solutions across Buildings, Transport, Environment & Health and Energy. We love seeing our ta ...

Senior Linux Kernel & Driver Engineer for AI Accelerators

A technology company in the UK is seeking a Senior Systems Software Engineer to develop systems software for their innovative AI accelerator hardware. You will work collaboratively on hardware-software co-design and contribute to system device drivers and runtime libraries. Candidates should possess excellent C/ ...

Senior Firmware Engineer FPGA/SDR for National Security

Roke in Gloucester is seeking skilled Firmware Engineers specialized in VHDL for the National Security Business. The ideal candidates will be involved in designing and developing critical systems, integrating solutions onto FPGA-based platforms, and conducting analyses in secure environments. Roles require stron ...

Senior Fullstack Software Engineer (With AI Tools Experience)

WHO WE ARE: Build. Scale. Sustain. PALO IT is a global technology consultancy that crafts tech as a force for good. We design, develop and scale digital and sustainable products and services to unlock value across the triple bottom line: people, planet, profit. We do the right ...

Senior Biz Apps Engineer — Power Platform & Dynamics CE

Hitachi Solutions is seeking a Microsoft Biz Apps Technical Senior (Power Platform and Dynamics CE) to join their team in Greater London. This full-time role involves implementing Dynamics 365 CE and Power Platform components while driving improvements through emerging technologies. The ideal candidate will have ...

Senior IBMi RPG Engineer: Lead Delivery & On Call

Love2shop in Liverpool is seeking a Senior IBMi (RPG) Engineer to provide technical leadership and support for the IBMi platform. This role involves leading RPG application delivery, ensuring timely and quality software changes, and providing second line support. The ideal candidate will have at least 5 years of ...

Senior PHP/React/AWS Full Stack Engineer — Mentoring

Dentro Talent is seeking a Senior Full Stack Developer to join their growing retail/eCommerce business in Bracknell. This role involves working on a modern tech stack including PHP, React, MySQL, and AWS. You will design and optimise both front-end and back-end systems, mentor fellow developers, and participate ...

Senior Full Stack Engineer (React/Node) £80 100k

Senior Full Stack Engineer - £80-100k - 3 days a week in Central London We’re working with a fast-growing SaaS company building tools that support modern organisations at scale. The product focuses on simplifying complex internal processes through thoughtful design, flexibility, and seamles ...

Senior Fire Engineer – HRB Safety Lead (Hybrid/Remote)

SOCOTEC UK & Ireland is seeking a Senior Fire Engineer to join their Building and Real Estate Division. This role focuses on Higher-Risk Buildings, providing high-quality fire engineering consultancy. Responsibilities include leading building safety case development, preparing fire appraisal reports, and conduct ...

Senior Full Stack Engineer AI Driven Platform & APIs

Pharmacy2U | Certified B Corp is seeking a Senior Full Stack Engineer to join our team. This role offers a hybrid working model and includes responsibilities such as developing innovative platform solutions and mentoring junior engineers. We require expertise in .NET, Microsoft SQL, and React, along with a stron ...

Senior EC&I Engineer Lead Hardware & Substation Design

Russell Taylor Group is seeking a Senior / Lead EC&I Engineer in Glasgow. In this role, you will deliver hardware designs and oversee engineering projects in the energy sector. Candidates should possess strong hardware design experience, familiarity with engineering drawing tools, and knowledge in high-voltage s ...

Senior Full Stack Engineer & Tech Lead (Hybrid London)

Immersum is seeking a Lead Engineer in London (Hybrid) to provide hands-on technical leadership by combining full-stack development with ownership of technical direction across projects. Responsibilities include leading the design and development of scalable digital products, mentoring engineers, and collaborati ...

Senior Analytics DevOps Engineer: Cloud, CI/CD & Automation

A leading global financial markets provider in London is seeking a skilled DevOps Engineer to join their analytics team. The role includes developing infrastructure as code, building CI/CD pipelines, and managing cloud environments. Candidates should have 3-5 years of experience with containerization tools and c ...

Senior C&I Engineer Energy & Low Carbon Leadership

WSP in the UK & Ireland is looking for a C&I Engineer to join their Low Carbon Team. The role involves leading a team to develop innovative designs for energy projects, including waste plants and carbon capture schemes. Key responsibilities include delivering projects, preparing technical deliverables, and engag ...

Senior AWS Engineer Remote UK (6 Month Migration)

Cloud Bridge is seeking a Senior AWS Engineer for a fully remote role in the UK, offering up to £500 per day. The position involves supporting a major AWS migration and separation programme for an enterprise customer within a professional services delivery team. Key responsibilities include AWS infrastructure bu ...

Remote Senior Fullstack JS Engineer — React/Node/Express

A leading engineering firm is seeking passionate developers for remote positions in the Greater London area. In this role, you'll collaborate with visionary clients, tackle complex challenges, and grow within a supportive team environment. Ideal candidates should be proactive and possess expertise in React, Node ...

AI First Senior Full Stack Engineer Remote UK

A leading AI-native property finance platform is looking for a Senior Full Stack Engineer to transition its architecture to AI-native systems. This role involves building and maintaining a TypeScript application, developing AI document ingestion layers, and managing cloud infrastructure. The ideal candidate has ...

Senior Full Stack & Infra Engineer — Scale on AWS

Multiverse is looking for a Full Stack Engineer in Greater London to join our Adoption AI Team. You will be instrumental in transitioning our MVP into a scalable system utilizing AWS, Terraform, and full-stack development. Ideal candidates have at least 5 years of experience, a strong understanding of AWS servic ...

Senior Full Stack Engineer London £75 140k + equity

About Corgi Corgi is an AI-powered insurance company designed for tech startups. The company has raised $108M and holds regulatory approval as a licensed carrier. The platform is built on Django, utilizes Stripe for payments, and features AI-driven underwriting. <l ...

Remote Senior AWS Engineer: Migration & Landing Zone Lead

Cloud Bridge Tech Recruitment is seeking a Senior AWS Engineer for a fully remote, 6-month initial contract role. The successful candidate will join a Professional Services delivery team working on a major AWS migration for an enterprise customer. Responsibilities include supporting build and migration activitie ...

Senior Data Platform Engineer & Validation Lead, GxP (London)

Recursion is seeking a Data Platform Engineer to join its London office. This hybrid role involves building and maintaining a GxP-compliant data platform that supports drug discovery at scale. You will ensure data integrity, mentor team members, and collaborate across multiple teams. The estimated salary range f ...

Senior Full Stack Engineer (TypeScript / Next.js) – Hybrid UK

A digital product agency is seeking a Senior Full Stack Engineer with profound experience in TypeScript, Next.js, and Node.js to work on a premium subscription platform for Times Higher Education. This role entails significant ownership of both frontend features and backend services, ensuring high quality, secur ...

Senior Mapping Engineer (Large Scale 3D/HD Mapping)

Senior 3D Mapping Engineer (Large-Scale 3D/HD Mapping) - First Key Hire Circa £80k+, London based An opportunity to take ownership of the mapping capability inside an advanced autonomy start up building real-world robotic systems. This role sits at the heart of the autonomy stack. ...

Senior FPGA Engineer | Relocation/Visa Support | Onsite 4d

A technology solutions company based in Rochester is seeking a Senior FPGA Engineer to design and verify FPGA technologies for safety-critical products. The role includes providing technical expertise, managing development tasks, and coaching junior engineers. Candidates should have a degree in electronics engin ...

Senior Full Stack Engineer, Physical AI — Equity & Growth

A leading AI infrastructure firm in Greater London is seeking talented individuals to join their Engineering team. You will work on tools for the Physical AI data stack, responsible for solving challenges of data management and enhancing performance in developing AI solutions. The role offers the opportunity for ...

Senior Knowledge Engineer — Semantic AI for Fusion Research

A leading energy research organization in the UK seeks a Senior Knowledge Engineer to develop semantic technologies for fusion energy research. The role involves creating and maintaining ontologies and knowledge graphs while utilizing generative AI tools. Candidates should have a PhD in Computer Science or a rel ...

Senior Full Stack Engineer (C#/React) — Salesforce DevOps

A leading DevOps platform company is looking for a Senior Software Engineer to enhance their product and collaborate closely with users. The candidate should have solid experience in C#, React, and TypeScript, along with a pragmatic and feedback-driven approach. This role offers a competitive salary between £59k ...

Senior AWS Platform Engineer – Hybrid London, 10% Bonus

A cloud engineering consultancy in Greater London seeks an experienced AWS Senior Platform Engineer to design and operate secure AWS platforms. The role involves hands-on problem-solving, collaboration with development teams, and contribution to CI/CD processes in a hybrid working environment. Candidates should ...

Senior .NET Full Stack Engineer (Angular/Azure) Hybrid

A UK technology recruitment agency is seeking a Senior Full Stack .NET Developer with extensive experience in .NET and C#. This contract position requires collaboration with internal teams and working on Azure projects in a hybrid setup in Brighton. Ideal candidates will have a strong background in automation te ...

Senior Desktop Engineer Cross Platform Rust/C++ | Equity

A leading privacy-focused tech company in Greater London seeks a Senior Software Engineer for their Inbox Desktop team to develop the Proton Mail Desktop App. The successful candidate will have significant experience with Rust or modern C++, focusing on high-quality, cross-platform software development. You will ...

Senior Overhead Line Engineer & Project Lead – 400kV Hybrid

A leading infrastructure consulting firm in the UK is seeking a Principal Overhead Line Engineer to lead the Transmission & Distribution team. This role involves providing technical leadership on various overhead transmission projects up to 400kV, ensuring scope and delivery. The ideal candidate is a professiona ...

Senior Growth Engineer CRO & A/B Testing Lead

A leading technology company is looking for a Senior Growth Engineer to lead experimentation aimed at optimizing conversion rates. This hands-on role demands expertise in A/B testing and front-end technologies like JavaScript and Vue.js, as well as familiarity with Laravel/PHP. You'll design and implement experi ...

Senior Shopify Plus Engineer — Fast, Pixel Perfect Themes

A leading beauty brand is seeking a specialized Shopify Developer to create and maintain a modular, high-performance storefront theme. Responsibilities include optimizing the theme, enhancing performance, and collaborating closely with design and engineering teams. Ideal candidates will have proven Shopify Plus ...

Senior EC&I Engineer: Nuclear Decommissioning, Hybrid Work

A leading energy engineering company in Warrington is seeking a Senior EC&I Engineer to support the delivery of engineering design within the nuclear decommissioning sector. The ideal candidate will have proven experience in electrical services design and proficiency in CDM regulations. This full-time role offer ...

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