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    Senior Scala & C++ Engineer — Remote, Big Data Performance

    A European IT company is seeking a Software Engineer to develop high-performance components for a next-generation data processing engine. Candidates should have over 7 years of software development experience, including 3 years in Scala and 2 years in C++. This remote position offers the chance to work on cuttin ...

    Principal Audio Software Architect (Real Time DSP)

    Sepura plc. is seeking a Principal Audio Software Engineer in Cambridge to lead the development of cutting-edge audio processing technologies for mobile radio products. This role emphasizes ensuring high voice intelligibility and reliability under demanding conditions. Applicants should have at least 5 years of ...

    SDET – Remote First Automated Testing for SaaS

    Exclaimer Group, a leading SaaS provider in Greater London, seeks a skilled Software Testing Engineer to enhance their automated testing frameworks. The role involves creating reliable automated tests, collaborating closely with Product and UX teams, as well as ensuring high user satisfaction through effective t ...

    Backend Engineer for AI Startup — Ownership & Impact

    An innovative AI startup in Greater London is seeking a Software Engineer to join its high-caliber team. In this role, you will work on backend systems integrating with LLMs, having direct conversations with customers and shaping products that make a real impact. Ideal candidates should have strong experience in ...

    Lead Front End Engineer – React + TypeScript

    JPMorgan Chase in Greater London is seeking a Lead Software Engineer to design and build scalable and performant front-end solutions using React with TypeScript. The role requires excellent communication skills and the ability to collaborate across B2C and B2B features. Ideal candidates will have formal training ...

    Senior .NET/C# Engineer Cloud SaaS Platform Lead

    VanRath is seeking a Senior Software Engineer in Belfast to enhance a cloud-based SaaS platform for clinical trials. The role requires 5+ years in software development, with strong skills in .NET (C#) and SQL. Responsibilities include mentoring junior developers and working closely with various teams. The positi ...

    Data Ingestion & Infra Engineer for Scalable AI Pipelines

    Clutch Canada is seeking a Software Engineer to support data collection for AI operations at Speechify. This role involves extending and operating the cloud infrastructure, specifically on GCP, and working closely with scientists on data-driven projects. Ideal candidates should hold a BS/MS/PhD in Computer Scien ...

    Senior Windows Desktop Architect UI & Accessibility

    Speechify is looking for a Senior Software Engineer specializing in Windows/Desktop Applications based in Brighton, UK. The role involves leading the design and development of native Windows applications while ensuring accessibility and usability. Ideal candidates will have over 3 years of experience in Windows ...

    Senior Binary & Firmware Security Engineer

    Keysight Technologies SAles Spain SL. seeks a Senior Security Software Engineer in Fleet, United Kingdom. You will be responsible for designing and building advanced software composition analysis capabilities, focusing on compiled artifacts like ELF and PE. The ideal candidate has a Master's degree in a relevant ...

    Remote Payments Engineer: Scale Billion Dollar Transactions

    Cloudbeds is seeking a Software Engineer for their Payments team to diversify their technical skills while contributing to a platform that processes billions in transactions globally. You’ll tackle issues in payment processing, improve automation, and contribute to the development of reliable systems. You should ...

    Senior SDE: CloudFront Control Plane & Global Scaling

    Amazon is seeking a Senior Software Development Engineer in Greater London, UK. In this role, you will lead the development of key initiatives and work with cross-disciplinary teams to design and deliver innovative products and services. Ideal candidates have experience in building complex software systems and p ...

    Remote Senior Windows C++/MFC Engineer

    Version 1 is seeking a Windows C++ Senior Software Engineer in Birmingham, England, to enhance and maintain a complex legacy desktop application built on MFC. The role demands strong hands-on expertise in Win32 and MFC, along with a proven ability to deliver high-quality software with direct customer interaction ...

    Data Infrastructure Engineer — AI Data Ingestion

    Speechify is hiring a Software Engineer in Manchester to enhance their AI team's data collection processes. The ideal candidate should have a BS/MS/PhD in Computer Science and over 5 years of software development experience, alongside proficiency in bash/Python, Docker, and cloud infrastructure management with G ...

    Lead Data Ingestion Engineer — Remote

    Muck Rack is seeking a Lead Software Engineer to join the Content Ingestion team in Cambridge, England. This role requires designing and evolving data pipelines that transform unstructured content into high-quality data. Candidates should have at least 8 years of software engineering experience, strong proficien ...

    Lead Cloud Architect & Platform Engineer

    A global consulting firm is seeking a Principal Software Engineer (Cloud) to join their Retail Solutions team in the UK, preferably in London or Newcastle. This hands-on role requires strong engineering skills to lead in the design and operation of SaaS products. The ideal candidate will have over 7 years of exp ...

    Staff Platform Engineer: Billing & Microservices Architect

    A fintech solutions company is looking for a Staff Software Engineer in Belfast to design and optimize billing services for their platform. The ideal candidate will have over 8 years of software development experience, specifically in Java or Python, alongside expertise in cloud platforms and CI/CD practices. Th ...

    Real Time C++ Engineer – STL + UNIX (London)

    A prominent recruitment agency is seeking a C++ Software Engineer to join a Tier-1 electronic trading organization in London. The role involves developing and enhancing the core real-time trading engine while collaborating with engineering teams throughout the software life cycle. Candidates should have a solid ...

    Senior Full Stack Engineer (AI Agentic UX)

    A leading software company in Greater London is looking for a Senior Full-Stack Engineer (3D) to lead the development of AI-native applications. The successful candidate will be responsible for designing and implementing workflows that allow AI to execute tasks autonomously. This role demands expertise in React, ...

    Senior Full Stack Engineer Cloud, Security & Defence

    A tech company is seeking a Senior Software Engineer to join their dynamic team in Farnborough, working on cutting-edge projects in secure digital technology. The role involves designing and maintaining software solutions, implementing backend systems using Java, Python, or Go, and deploying cloud services on AW ...

    Senior Backend Engineer, APIs & Data Pipelines

    A cybersecurity leader is seeking a Senior Software Engineer for backend services and APIs in London. The ideal candidate has 3-5 years of software engineering experience, strong programming skills, and familiarity with Golang, cloud environments, and micro-service architecture. Responsibilities include implemen ...

    Control Systems Engineer PLC/SCADA, UK Site/Lead Roles

    Osprey Engineering Solutions is seeking a Control Systems Engineer based in London or near Reading. The role involves full life cycle delivery of projects, attending client meetings, and ensuring technical compliance and quality. Candidates should possess a Software Engineering Degree or Electrical Qualification ...

    Remote Python Engineer for AI Model Performance (Contract)

    Mercor is looking for a Software Engineer to develop and maintain production-grade Python systems in a remote capacity. The role requires expertise in modular, testable codebases and optimization techniques. The ideal candidate will have a proven track record in top US tech firms, demonstrating deep knowledge of ...

    Full Stack Engineer: Build Real Time AI Data Engine

    Pigment, a leading SaaS company in London, is seeking a Fullstack Software Engineer to work on backend systems in C# and frontend in React. You'll be involved in optimizing performance-critical systems that handle real-time data, collaborating closely with a vibrant team to drive innovation and deliver impactful ...

    Senior Computer Vision Research Engineer (Multimodal AI)

    A leading software company in the UK is seeking a Senior Software Engineer focused on Computer Vision and Multimodal AI. This role involves building robust perception systems and end-to-end pipelines transforming images into structured data. Candidates should have at least 4 years of experience in computer visio ...

    Hands on Tech Lead for Data Heavy Systems (SC/NATO)

    A technology consultancy is seeking a Lead Engineer to guide technical direction and enhance delivery within a complex, data-heavy software environment. The role requires strong technical leadership and hands-on software engineering skills, with responsibilities including improving team efficiency and communicat ...

    Senior Data Engineer Ads Analytics & APIs

    Roku, Inc. is seeking a Senior Software Engineer based in Manchester, UK, to design and develop APIs and Big Data pipelines. The role demands deep expertise in API development via Spring Boot and knowledge of Apache Spark. You will work closely with cross-functional teams to deliver robust data solutions. The id ...

    Security Engineering Lead | Production Reliability & Cloud

    Allstate Insurance Company in Belfast is looking for a Managing Security Engineer to lead a team delivering security controls within enterprise systems. This hands-on role combines technical leadership and team management, emphasizing the development of secure software products while ensuring operational excelle ...

    Senior Embedded Linux Engineer: Lead Architecture

    Seakeeper, Inc. is seeking a Senior Embedded Software Engineer based in Bournemouth, UK. In this pivotal role, you will be at the forefront of developing and maintaining Linux-based applications, representing the highest technical competency in embedded software solutions. The ideal candidate will possess a Bach ...

    Data Infrastructure & Ingestion Engineer for AI Datasets

    Clutch Canada is seeking a Software Engineer to join Speechify's Data team. The candidate will be involved in data collection, pipeline infrastructure on GCP, and collaboration with the AI team to improve data quality and efficiency. Ideal applicants should have a degree in Computer Science or a related field, w ...

    Impactful Regulatory Tooling Engineer for Medical Devices

    Flok Health Ltd. is seeking a Software Engineer specializing in Internal Regulatory Tooling to develop tools and improve processes for their quality and regulatory function. You will play a crucial role in building quality medical devices while having ownership in optimizing processes based on ISO standards. The ...

    Senior React Engineer (TypeScript) – Fintech Frontend

    JPMorgan Chase is seeking a Software Engineer to contribute to innovative projects that prioritize customer needs. This role is integral to building scalable front-end solutions, especially using React with TypeScript, while promoting a collaborative environment. With a strong focus on maintaining code quality, ...

    Lead React UI Engineer — Impactful, Secure, Scalable

    JPMorgan Chase & Co. is seeking a Lead Software Engineer in Glasgow, UK, to enhance and deliver market-leading technology products. You will be responsible for creating robust software solutions and leading a team of UI Engineers. The role demands extensive experience in system design, agile methodologies, and p ...

    Flight Control Engineer UAV Autonomy & Simulation

    Callen-Lenz in Bristol is looking for a Flight Control Engineer to work on flight control and simulation software development. Candidates should hold a BSc or MSc in Engineering and have experience in designing control systems, understanding aeronautics, and using MATLAB and Simulink. The role involves model-bas ...

    Senior Engineer: Copilot Studio & Power Platform

    Hastings Direct is seeking a Senior Engineer for its CoPilot Studio based in Leicester or Bexhill. This role focuses on leading software development projects that leverage Microsoft Copilot Studio and Power Platform. The candidate will oversee the software lifecycle, provide technical guidance, and mentor junior ...

    Senior Product Engineer AI R&D Tools, Ownership

    Ankar, located in Greater London, is seeking a skilled software engineer to build innovative R&D tools for the AI era. You'll be responsible for designing and maintaining user-facing systems while collaborating closely with customers and product teams. The ideal candidate will have substantial software engineeri ...

    Senior .NET Architect & Lead Engineer Remote

    Tria is looking for a Senior Software Engineer (.NET / C#) for a hands-on role leading a greenfield systems rebuild. This position requires at least 5 years of experience in software engineering, particularly in .NET/C# and architecture decision-making. The role is fully remote with an attractive salary between ...

    Senior Simulation Engineer — Realistic Driving Platform

    Icehouseventures is seeking a Software Engineer for Wayve’s Simulation Technology team in Greater London. You will be an expert in developing core components of a simulation platform that is essential for evaluating driving intelligence. Responsibilities include ensuring simulator realism and integrating mach ...

    Staff ML Engineer End to End Agentic AI, Remote EU/UK

    Synthesia is seeking an experienced Software Engineer to take ownership of features for their new Interactive Agents product. This remote position requires at least seven years of software engineering experience, focusing on machine learning and back-end systems. The successful candidate will work closely with p ...

    Hybrid Test Engineer QA Lead, UK Visa Sponsorship

    NewsNowGh, a forward-thinking technology company in Leeds, is hiring a Test Engineer to lead quality assurance initiatives for its voice software platform. The hybrid full-time role offers a competitive salary of £35,000–£50,000 and supports Skilled Worker visa sponsorship. The ideal candidate will ens ...

    LabVIEW Systems Engineer: Design, Test & Commission

    TBG Solutions Ltd in Chesterfield is seeking an experienced LabVIEW Systems Engineer to design and develop bespoke software solutions for performance-critical industries. With over 3 years of experience in LabVIEW, you will manage the full software lifecycle, ensuring the delivery of high-quality products. </ ...

    Remote Principal Backend Engineer Enterprise SaaS Video

    Synthesia is seeking a Senior Software Engineer to lead projects across multiple teams, focusing on backend challenges within their engineering organization. With a minimum of ten years in software engineering and two in a senior position, you will drive standards and best practices in a high-performance environ ...

    Robotics Test Engineer End to End Release Validation

    Groupe-Ebra-1 in Greater London is seeking a Robotics Test Engineer to support software release validation and metrics collection on humanoid robots. The ideal candidate will have over 3 years of experience in software testing, proficiency in Python and understanding of ROS2. The role involves running tests on r ...

    Staff Engineer: AI Systems & MLOps Architect

    PC Partner Limited is looking for a Staff Engineer, Software (AI) who will be responsible for the architecture and development of advanced AI solutions. You will collaborate with cross-functional teams to implement and deliver AI technologies that align with product requirements. The ideal candidate sh ...

    Senior Backend Engineer, Low Latency Trading (Rust/C++)

    Blockchain.com is looking for a Senior Software Engineer to join their Institutional team in London. You will build low latency trading services and enhance the Order Management System (OMS). Candidates must have extensive experience in C++ and/or Rust, knowledge of trading systems, and a strong focus on deliver ...

    Lead Java Engineer, Post Trade Tech Scale Secure FinTech

    JPMorgan Chase & Co. is seeking a Lead Software Engineer to join their Post Trade Technology team in Westminster, UK. In this role, you will execute creative software solutions, lead a team dedicated to enhancing stable and scalable technology products, and drive critical technology solutions. The ideal candidat ...

    Senior QA Engineer for ETF Platform

    State Street is seeking a Senior QA Engineer to join their ETF Platform team in Greater London. The successful candidate will design and execute testing initiatives throughout the software development lifecycle, collaborating with a global multidisciplinary team. Applicants should possess a Bachelor’s degree, 5- ...

    Senior Cloud SRE Engineer Platform Reliability

    Google Inc. is seeking a Senior Software Engineer, Cloud Control Platform SRE in London, UK. In this role, you will engage in the entire life-cycle of services from inception to deployment, and maintain systems health. You will need a Bachelor’s degree in Computer Science, 5 years of software development experie ...

    Lead GenAI Platform Architect — Production Ready AI

    Saragossa in Greater London is seeking a skilled Software Engineer to lead the AI platform for a prestigious hedge fund managing £70bn. This role involves full ownership of the AI systems with significant investment in technology. Candidates should have at least five years of experience in software engineering, ...

    Senior Data Platform Engineer — Spark & Airflow

    Roku is seeking a Senior Software Engineer in Salford, England, to design and build high-performance data products and APIs. The ideal candidate will have over 8 years in software/data engineering, specializing in big data technologies like Apache Spark and Apache Airflow. This hybrid role emphasizes collaborati ...

    Automation & CI/CD Engineer (Test & Containers) London

    ALTEN LTD - UK is seeking a Software Test Integration and Automation Engineer in London. In this role, you will ensure the reliability and scalability of a CI/CD ecosystem while developing robust containerized runtime environments. Responsibilities include enhancing CI/CD pipelines and collaborating with softwar ...

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