277,222+ Fullstack Software Engineer Java React Aws Jobs in UK — Top Companies Hiring June 2026

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Senior Software Engineer, Client Solutions Cloud & Events

A prominent financial technology firm in Greater London is looking for a Senior Software Engineer to design and build resilient, event-driven systems. You'll engage across the engineering lifecycle while using modern AI-assisted tools. Candidates should have over 5 years of experience in software development and ...

Senior Software Engineer – Cloud Native Trading Platforms

Provn is seeking several experienced Software Engineers to join their growing engineering function. This role involves working on complex, business-critical systems in a collaborative environment, focusing on scalable backend and cloud-native solutions. The ideal candidate will have strong software eng ...

Staff Software Engineer Real Time Perception & Autonomy

A leading company in electric vehicles seeks a key member for their Perception team in London. This position focuses on developing and optimizing software components for machine learning training, contributing to self-driving technology. Candidates should possess advanced qualifications and extensive experience ...

Senior Software Engineer Electronic Trading Shared Services

Senior Software Engineer - Electronic Trading Shared Services Location London Business Area Engineering and CTO Ref # Description & Requirements We are part of the engineering organization that powers Bloomberg’s global Electronic Trading platform ...

Senior Software Engineer (L5) – Hybrid, Scale & Impact

Senior Software Engineer L5 Manchester (Hybrid, up to 4 days WFH) | £55k-75k Street Group is one of the fastest-growing PropTech companies in the UK. We want to be the leading creator of delightful experiences for everybody involved in buying, selling, renting and letting property, regard ...

Senior Software Engineer — Cloud Microservices for Energy

A leading company in the energy sector is seeking a Software Engineer to join their innovative team in Oxford. The role involves developing cloud-based software solutions that impact global energy markets. You will work with cutting-edge technologies and contribute to a microservices architecture. The ideal cand ...

Senior Software Engineer DV Cleared | Hybrid & Cloud

A leading defense tech firm in Cheltenham is seeking a Senior Software Engineer with enhanced DV Clearance for a hybrid role. You will tackle national security challenges using cutting-edge technology, contributing to hands-on development and code reviews. Strong expertise in cloud architecture, DevOps tools, an ...

Senior Software Engineer Real Time Data Pipelines

A premier betting solutions provider is seeking a Senior Software Engineer to join their Data Acquisition team in Harrow, UK. This role involves developing software for real-time sports data products and collaborating with engineers and data specialists. Candidates should have strong programming skills, experien ...

Senior Flight Software Engineer — Embedded Rust/C++

A leading space technology company is seeking a Flight Software Engineer to lead the design and implementation of software for satellite missions. Responsibilities include defining software architectures, overseeing testing, and mentoring junior engineers. The ideal candidate has deep expertise in Rust and profi ...

Senior Software Engineer: Remote First Backend & Frontend

Tripadvisor is seeking a Senior Software Engineer in Oxford to join a dynamic team. This full-stack position focuses on backend development while offering the opportunity to work on front-end projects. You will collaborate closely with product managers and designers and will be part of a rapid release cycle, wit ...

Senior Software Engineer Agent & Datapath (eBPF) Isovalent

Isovalent, now part of Cisco, is the company founded by the creators of Cilium and eBPF. Cisco Isovalent builds open-source software and enterprise solutions solving networking, security, and observability needs for modern cloud native infrastructure. The flagship technology, Cilium, is the choice of numer ...

Senior Software Engineer Python (Perm, UK) UK

Senior Software Engineer - Python (Perm, UK) UK Senior AI Python Engineer (Perm, UK, Remote with occasional travel to client site) This is a full-time, permanent opportunity for candidatesbased in the UK. There will be a need to travel to the office in London occ ...

Senior Software Engineer GPU Capture and Replay

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 services including PlayStation®5, PlayStation®4, PlayStation®VR, PlayStation®Plus, ...

Senior Software Engineer ETRM & .NET Core Specialist

A leading energy trading company in London seeks a Software Engineer to develop and optimize ETRM systems. Candidates should have a strong background in C# and .NET Core, with at least 8 years of experience. Responsibilities include proposing software designs, implementing solutions, and developing database fram ...

Lead Software Engineer Design Engineering (Design System)

Join JPMorganChase's business accelerator team, a hub of innovation and customer-centric product development. We're a new B2B organisation, part of a venture focused on creating engaging digital experiences. We're seeking a design engineer with a deep understanding of system thinking and advanced front-end ...

Senior Software Engineer (C++/Rust) Greenfield System

Platform Recruitment in Newcastle upon Tyne is looking for a Senior Software Engineer specialized in C++ and Rust. This role involves identifying solutions to client problems and building performant software in a greenfield environment. The consultancy focuses on highly regulated industries and offers significan ...

Senior Software Engineer – AI Driven Financial Platform

FIS Banking Solutions UK Limited in City of London is seeking a talented individual to build the core financial engines of an autonomous banking platform. The successful candidate will design and implement ledger and transaction engines, build high-precision financial tools, and ensure compliance within highl ...

Senior Software Engineer — AI+Materials Platform (Equity)

A cutting-edge materials technology company in London is seeking a Senior Software Engineer to define the technical foundations of their AI-driven platform. This hands-on role involves collaboration with scientists and engineers, focusing on backend architecture and product performance. The ideal candidate has 5 ...

Senior AI/ML Software Engineer — Edge & Embedded

A cutting-edge technology firm in Leeds is seeking a talented engineer to join their team in developing innovative solutions using AI technologies. The ideal candidate will have 5-7 years of software development experience and strong proficiency in Python, as well as experience with AI frameworks such as PyTorch ...

Senior Software Engineer Lead Scalable Messaging Platform

A leading messaging platform company is seeking a Senior Software Engineer to enhance their cutting-edge messaging services. You'll lead the development, mentor junior developers, and engage in the full software lifecycle. The role offers a competitive salary between £60,000 - £70,000, flexible working options, ...

Senior Software Engineer Integrations Lead (20+ Apps)

Trustpilot is seeking a Senior Software Engineer to join their B2B Integrations Squad in Greater London. This role involves overseeing various integrations, improving system scalability, and mentoring a dynamic team. The ideal candidate has extensive experience in full-stack development, particularly w ...

Senior Software Engineer Client SDK (UI Platform)

Senior Software Engineer - Client SDK (UI Platform) Join to apply for the Senior Software Engineer - Client SDK (UI Platform) role at Postman . Who Are We? Postman is the world’s leading API platform, used by more than 40 million developers and 500,000 organizations, includi ...

Senior Software Engineer, Core SDKs (Kotlin Multiplatform)

Speechify is seeking a Senior Software Engineer for its Core Experiences Team in Birmingham, United States. This role involves building and maintaining APIs and SDKs that enhance the product experience. Candidates should excel in systems thinking and collaboration, with a strong focus on using Kotlin Multiplatfo ...

Senior Spark/ADA Software Engineer — Safety Critical

Capgemini is seeking a Software Engineer to join its High Integrity Software team in Bath, England. You will work with a diverse group of experienced engineers to develop software for safety-critical applications in sectors such as Aerospace, Defence, Rail, Automotive, and Energy. Key responsibilities include le ...

Edge Sensor Software Engineer – Marine AI & Radar

SRT Marine Systems plc based in Bristol is seeking an experienced Senior Software Engineer – Sensors to join our Edge Team. The successful candidate will design and maintain edge-sensor solutions, focusing on performance and reliability. Key responsibilities include developing test infrastructures and collaborat ...

Senior Spacecraft Software Engineer GNSS & Data Pipelines

A leading aerospace technology firm is seeking a Spacecraft Software Engineer to develop and maintain software for satellite GNSS missions. The role involves working with C++ and Python, developing scientific software, and collaborating with various teams to ensure high-quality data delivery. Candidates should h ...

Software Engineer (Mid/Senior) – Embedded, AI & Cloud

One Big Circle Ltd in the West of England is looking for a Software Engineer at mid to senior levels. The role involves designing, developing, and maintaining software solutions while collaborating with teams to achieve system integration. Candidates should have 3+ years of experience, proficiency in C++/Python, ...

Senior Software Engineer – Simscape: Hybrid Work & Modeling

A leading technology company in the United Kingdom is seeking a Software Engineer for their Physical Modeling team. The ideal candidate will have expertise in C++ and experience with engineering systems. Responsibilities include developing simulation methods, managing software development processes, and interact ...

Senior AI Software Engineer – Claims Tech & Automation

Trinity-Claims in Tonbridge is seeking a skilled AI Developer to enhance their claims management systems through AI initiatives. The ideal candidate should have strong experience in C#, ASP.NET, and must demonstrate effective communication with stakeholders. This position offers a salary range of £65,000-70,000 ...

Senior Software Engineer (Full Stack and Backend)

Senior • London, Barcelona, Edinburgh and Berlin Responsibilities Pragmatism and obsession for simplicity, efficiency, and performance Extensive experience in similar roles building technically complex products in any web programming language An expert level at server-si ...

Senior Software Engineer Graph Analytics for Snowflake

About Neo4j Neo4j is the graph intelligence platform that transforms data into knowledge to power the next generation of intelligent applications and AI systems. It includes enterprise‑ready knowledge graphs for accurate, explainable, and governed AI; the most comprehensive, trusted, and easy‑to‑ ...

Senior Embedded Software Engineer Hybrid UI/OS

A leading streaming company in the United Kingdom is seeking a Senior Software Engineer, Embedded to contribute to embedded UI development and algorithm implementation. The ideal candidate will have strong C++ experience, knowledge in UI frameworks, and relevant skills in embedded systems. This role offers visib ...

Lead Automation Software Engineer for Bespoke Machinery

Mpac Group in Tadcaster is seeking a Senior Software Engineer to lead automation software delivery for bespoke machinery projects. Responsibilities include developing Software Design Specifications, leading commissioning activities, and mentoring junior engineers. The ideal candidate should have advanced experie ...

Senior Software Engineer – AI Driven Inspection Platform

PassFort in London is seeking a technical specialist to design innovative inspection software. You will work closely with users to understand their needs and develop solutions that integrate AI effectively. With a competitive salary of £120,000 - £150,000 plus equity, PassFort encourages a collaborativ ...

Senior Software Engineer AI Voice & Customer Platform

Elyos AI is looking for a founding engineer to shape the future of customer service with AI agents. In this role, you will build core product features using Python or TypeScript, work directly with customers to deliver tailored solutions, and drive the use of best practices for quality. Ideal candidate ...

Senior Software Engineer AI Driven Event Platform

A technology company is seeking a Senior Software Engineer to work on an AI-powered event platform. You will be responsible for delivering features using modern software practices and mentoring team members. The ideal candidate should have significant experience with production-grade software and AI, along with ...

Senior Software Engineer AI Platform & Data Pipelines

ZEREN is hiring a Senior Software Engineer to play a vital role in developing the core platform of their AI startup. You will be responsible for building data integrations and enhancing platform performance. This position allows you to make a significant impact on technology that changes how teams use data. < ...

AI Native Senior Software Engineer (Hybrid London)

Axon in London is seeking an experienced software developer to lead the creation of groundbreaking AI-driven products. The ideal candidate will have over 7 years of software development experience, strong AI-native delivery capabilities, and the ability to work effectively in a hybrid environment. This ...

Senior Software Engineer — Python/Django, Own Backend

A financial services firm in Greater London is seeking a skilled software engineer to develop and enhance their investment reporting platform. The successful candidate will have over 5 years of experience with Python and Django, be involved in the full software life cycle, and collaborate with various teams. Thi ...

Senior Software Engineer Full‑Stack, Impact & Equity

Ashby is seeking a full-stack engineer to join our engineering team in Oxford, United Kingdom. You'll work on crucial features such as automated interview scheduling and user-facing filter architectures. The ideal candidate is ambitious, collaborative, and comfortable across the tech stack. We're offering a comp ...

Senior Software Engineer II Wise for Enterprise

Senior Product Engineer II We’re looking for a Senior Product Engineer II to join our Wise for Banks team and help shape the technical direction of the systems powering Wise’s global payment network. In this role, you’ll operate at the intersection of engineering, product, and partnerships by dri ...

Senior Software Engineer Full‑Stack, Performance‑First

Europython is looking for a Senior developer to work in London, Barcelona, Edinburgh and Berlin. The ideal candidate will have a strong pragmatism and obsession for simplicity, efficiency, and performance, along with extensive experience in building technically complex products in any web programming language ...

Senior Software Engineer Open Source Cambridge, UK

Riverlane’s mission is to master quantum error correction (QEC) and unlock a new age of human progress. From advances in material and climate science, to complex chemistry simulation for new drug design, quantum computers will help humanity solve some of its most important challenges. But without Q ...

Senior Software Engineer — Public Sector Impact (Remote)

Made Tech is hiring a Senior Software Engineer to work across the UK government in transforming public sector technology. You will be responsible for writing high-quality software, mentoring team members, and contributing to the delivery of key projects that impact society. The ideal candidate will have a strong ...

Datasets Software Engineer Sensors, Algorithms and Detections

Overview Datasets Software Engineer (Contractor) to support data calibration and standardization workflows for a cutting-edge AI and Robotics end customer. You will play a critical role in building robust pipelines that unify and align data from a variety of sensors, contributing directly ...

Senior Software Engineer Quantum Safe Encryption (Python)

A leading cybersecurity firm located in Belfast is seeking a Senior Python Developer to enhance their Encryption Intelligence technology. The ideal candidate will have significant commercial experience and a deep understanding of Python programming. Responsibilities include developing robust software solutions a ...

Senior Software Engineer Cyber & AI Mission Critical

Copello Global in Manchester is looking for a Software Engineer to work on innovative projects in Cyber and Intelligence. This position offers a hybrid working model, blending on-site and remote tasks, allowing for flexibility while contributing to critical security solutions. The ideal candidate will ...

Senior Software Engineer Elixir/Phoenix & Rails (Remote)

A technology company in the United Kingdom is seeking a Senior Software Engineer to enhance their software solutions aimed at connecting college babysitters with families. The role requires strong expertise in Elixir and Phoenix, as well as Ruby on Rails and mobile app development. Join a remote-friendly team an ...

AI Native Senior Software Engineer — Hybrid London

Artlogic is seeking a Senior Software Engineer to evolve their platform and guide technical direction. This role involves hybrid working based in London, requiring attendance at the office at least twice a week. The ideal candidate has significant experience in building cloud-based systems and is profi ...

Lead Back end Software Engineer (EO Workflows)

Requirements Strong backend engineering experience working on complex, distributed systems in production environments ,High ownership and autonomy with a proven ability to independently drive technical and product decisions in ambiguous problem spaces ,Product mindset with e ...

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    Fullstack Software Engineer Java React Aws Jobs in United Kingdom Job Search Guide, Trends and Insights