2,332,142+ Full Stack Software Engineer Javascript React Elixir Jobs in UK — Top Companies Hiring July 2026

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Lead Electronics & Systems Architect | Global Travel

Pimlico Banks Recruitment is seeking a Principal Engineer Electronics & System in Bedford to lead and take ownership of complex product development activities. The role involves managing electronics, firmware, and software development programs while ensuring compliance with customer and regulatory requirement ...

Robotics Controls Engineer ROS2 Motion & Autonomy

OpenSourced Ltd is seeking a Robotics Controls Engineer in Cambridge to develop next-generation autonomous systems. The role involves creating motion-control software using ROS2 and working with MoveIt2 frameworks while tuning PID control systems for reliable robotic motion. The ideal candidate should ...

BMS Commissioning & Projects Engineer UK Travel

A growing projects team seeks an experienced Project Engineer based in Greater London. The ideal candidate will manage commissioning and pre-commissioning for BMS systems. Responsibilities include software configuration, resolving commissioning issues, and delivering client training. The position offers a compet ...

Graduate Highways Engineer: Design & Transport Solutions

A leading transport consultancy is seeking a motivated Graduate Highways Engineer to join their dynamic team in Greater London. This role involves assisting in the design and delivery of highways and transport infrastructure projects from feasibility to detailed design. Ideal candidates will have a degree in Civ ...

Lead D365 Engineer: Architect, Mentor & Scalable Solutions

Kainos in Belfast is seeking a Lead Dynamics 365 Engineer (Consultant) to manage teams and develop high-quality D365 CE solutions. In this fast-paced role, you'll coach and develop team members while ensuring sound decision-making in project timelines. Ideal candidates will have expertise in Low Code s ...

Senior AI Research Engineer — Edge ML & Multimodal CV

A cutting-edge AI company in Greater London is seeking a Senior AI Research Engineer to develop advanced AI products, focusing on multimodal LLMs and deep learning model optimization. Candidates should have over 5 years of experience in software engineering, particularly with Python and frameworks like PyTorch a ...

Mechanical Design Engineer – Industrial Automation

KO2 Embedded Recruitment Solutions Ltd is seeking a Mechanical Design Engineer in Newcastle upon Tyne. This role involves designing and developing mechanical components for industrial automation solutions, collaborating with engineering teams to ensure robust designs. The successful candidate will have ...

Secure Embedded Systems Engineer – SoC Security & Cryptography

European Tech Recruit is seeking an Embedded Systems Engineer - Security / Cryptography to join a global leader in the semiconductor industry. Located in Glasgow, the role involves defining security mechanisms across hardware, firmware, and software while driving vulnerability analysis for next-generation SoC ...

Embedded DevOps Engineer | CI/CD for Edge & IoT

Scrumconnect Limited is hiring an experienced Embedded DevOps Engineer to enhance software delivery and maintain robust CI/CD pipelines. The role involves supporting embedded Linux-based systems, implementing automation frameworks, and ensuring secure device management. As part of a dynamic team, you’l ...

Senior Rust Engineer Security Endpoint (Cross Platform)

Harmonic Security Inc. is seeking a Principal Systems Engineer to lead the development of security-critical endpoint software. This role involves building high-performance Rust components across Windows, macOS, and Linux platforms, essential for protecting sensitive data in real-time. The ideal candida ...

Senior Traffic Signals Engineer – Lead Design & Clients (Hybrid)

WSP in the UK & Ireland is seeking a Senior or Principal Traffic Signalling Engineer to lead the technical delivery of highway consultancy services for the Traffic Signals Design team. You will be client-facing and manage projects from feasibility to post-commissioning support. The ideal candidate will ...

Senior .NET Lead Cloud Native SaaS Architect & Mentor

Oliver Bernard is partnering with a high-growth SaaS technology company to find a Lead .NET Software Engineer. This hands-on role requires expertise in cloud-native development, modern architecture, and AI-augmented delivery. The successful candidate will lead complex initiatives and drive modern engin ...

AI‑Driven Systems Engineer (Mid Level)

Legatics is looking for an Engineer to build and maintain features across their LegalTech platform. The ideal candidate will blend strong software engineering skills with a product-focused mindset and appreciate the intersection of product and engineering. This position is based in the UK with occasional visi ...

Senior Data Platform Engineer – Ultra Scale Spark Pipelines

CrowdStrike Holdings, Inc. seeks a Senior Software Engineer to join their data engineering team located in Greater London. The successful candidate will design and operate systems for processing vast amounts of data, building a hyper-scale data lake while utilizing tools such as Java, Spark, and Kubernetes. < ...

Ultra Low Latency C++ Engineer — HFT Systems

A leading tech consultancy in London is seeking a C++ Software Engineer to work on latency-critical trading infrastructure. The role focuses on developing ultra-low latency trading systems in a high-performance trading environment. Candidates should have significant experience in C++ development and a strong und ...

Senior Unity 3D Visualization Engineer

ELLIOTT MOSS CONSULTING PTE. LTD. is looking for a Senior Unity 3D Engineer based in Penarth, Wales. In this role, you will develop advanced Digital Twin and IoT/OT Visualization solutions, transforming operational data into immersive experiences. Your responsibilities will include designing interactiv ...

C++ Robotics Engineer – Autonomous Systems

Hexwired Recruitment Limited is seeking a C++ engineer to join a cutting-edge robotics company in Cambridge. In this role, you will develop high-performance software for autonomous robotic systems, solving complex challenges in unpredictable environments. The ideal candidate will have strong C++ develo ...

Senior Java Engineer, Distributed Systems

Elastic is hiring a Senior Software Engineer for their Elasticsearch - Distributed Systems team based in Greater London. You will focus on enhancing the performance, scale, and resilience of Elasticsearch, working on distributed systems and consensus algorithms. The ideal candidate has strong Java skil ...

Infrastructure Engineer | Highway & Drainage Design

Carrington West is seeking an experienced Engineer to manage projects, undertake detailed designs, and work closely with clients. The ideal candidate will have 2-5 years of experience in relevant engineering roles and be proficient in using AutoCAD alongside other engineering software like WinDes and Civils 3 ...

Remote Backend Engineer (Java/Spring) 6 Months

Harvey Nash Group is seeking a Back End Software Engineer to join their public sector client for an initial 6-month period, based in Glasgow or remotely. The role emphasizes developing features securely and providing support for application issues. The ideal candidate will have strong experience in Jav ...

Global 24x7 Customer Support Engineer SaaS & API

RELX INC is seeking a Support Engineer to join the global support team, responsible for delivering exceptional customer service. You will assist clients with problems ranging from troubleshooting network connections to handling complex software inquiries. The ideal candidate should have experience in c ...

Hands On IT Support Engineer – Windows & End User

Red King Resourcing is seeking an IT Support Engineer for onsite support in Cowdenbeath, Scotland. This hands-on role involves troubleshooting hardware and software for end users and ensuring high service delivery. The ideal candidate will have proven experience in Level 2 IT support, strong knowledge ...

London Network Infrastructure Engineer (6 Month FTC)

A leading financial institution in Central London is seeking a Network Infrastructure Engineer with 5 to 10 years of hands-on experience. The ideal candidate will have experience in the Financial Services sector and be proficient in Windows operating systems and various software tools. This FTC position offers a ...

Senior DevOps Engineer: CI/CD & Cloud Automation Lead

Lloyds Bank plc is searching for a Senior DevOps Engineer in Manchester. The role involves designing CI/CD pipelines and enhancing automation to support teams in delivering software reliably. We seek a detail-oriented individual with hands-on experience in cloud platforms and strong scripting skills. T ...

Senior Backend Engineer (Rust/Python) – FinTech Platform

A financial technology firm in the City of London is seeking a financial software engineer to join their back-end team. The role involves designing and maintaining cloud-native solutions, working with Rust and Python, and collaborating with stakeholders in the finance sector. The ideal candidate possesses a stro ...

Senior Traffic Engineer Public Sector Mobility & Design Lead

A UK-based engineering consultancy is looking for a Traffic Engineer to join their Traffic and Highways team in Winchester. The position offers a competitive salary based on experience and includes a company car or allowance, pension contributions, and 25 days of annual leave. Candidates should have UK experienc ...

London SRE for Real Time Trading Platform Reliability

Cedar Cares, Inc is seeking a Site Reliability Engineer based in London to support both European and US markets. The role involves configuration management, incident response, and maintaining high availability of trading platforms. Ideal candidates will possess a Bachelor's Degree in a relevant field, ...

Senior Simulation & Security Engineer (C++/iOS)

Boeing in Crawley, England, is seeking a Senior Simulation Software & Security Engineer to lead security architecture for a complex iOS application. You will be responsible for managing a large native C++ codebase and collaborating across teams to implement innovative solutions. The ideal candidate has ...

Principal Engineer — Cloud Native & AI Platforms

Wood Mackenzie Ltd in Edinburgh is looking for an experienced Principal Engineer to lead the design and development of scalable, cloud-native applications. This role requires deep expertise in AWS, Kubernetes, and microservices. The ideal candidate will have over 12 years of experience in software engi ...

Senior Building Services Mechanical Lead | Mentoring

Six Ventures Ltd is actively seeking a Senior Building Services Mechanical Engineer in Birmingham. This role offers the chance to lead engineering design on diverse projects across healthcare, education, and more. The role emphasizes teamwork, mentoring future engineers, and sustainable design. Candida ...

Senior Kotlin Engineer: Event Streaming for Banking Hybrid

Salt Digital Recruitment is seeking a Senior Kotlin Software Engineer for an investment banking client in London. This hybrid role involves developing backend services in a fast-paced environment, focusing on high-quality engineering and collaboration. The ideal candidate will have strong Kotlin develo ...

Senior Backend Engineer: Low Latency Trading Systems

TP ICAP Group Services Ltd is looking for a Senior Back-End Engineer in London to design, develop, and maintain robust server-side applications and APIs. The role involves collaborating with Architects and delivering high-performance systems across the software lifecycle. The ideal candidate will have ...

Senior Avionics Mechanical Engineer — Hybrid (9‑Day Fortnight)

General Dynamics UK Limited in Hastings seeks a skilled Mechanical Engineer to develop next-generation avionics systems. The role focuses on mechanical design and requires significant experience in avionics systems and proficiency in CAD software like Creo Parametric. The ideal candidate will lead mech ...

Senior Lead Engineer Cloud, Security & Public Sector

Join ByDesign Secure Systems Ltd as a Senior Lead Engineer and help shape solutions for a landmark IT transformation. You will lead engineering activities, mentor teams, and ensure secure, efficient delivery of software solutions. This hybrid role in London combines hands-on engineering expertise with leaders ...

Senior Structural Engineer Seismic for Defence/Nuclear

AECOM in Plymouth is seeking a Senior Structural Engineer to lead the design and analysis of complex projects in the defence, research, and nuclear sectors. This role involves delivering safe, technically robust solutions while collaborating with multidisciplinary teams. The ideal candidate will have a ...

Principal Platform Engineer Cloud, DevOps & CI/CD

Raytheon Systems is seeking a Principal Platform Engineer based in Manchester. The role involves deploying applications and software to cloud or on-prem environments for various business needs. Candidates should be willing to obtain SC and eDV clearance. This position requires experience in Agile/SCRUM ...

Senior Observability Engineer for TRAX Platform

Bloomberg L.P. is seeking a Senior Software Engineer for their TRAX Observability team in London. This role focuses on enhancing system performance metrics and ensuring reliability across trading systems, affecting client experience directly. The ideal candidate has experience in high-level programming ...

Senior Drainage Design Engineer Major Projects Lead

Balfour Beatty plc is seeking a Senior Drainage Design Engineer to join our Major Projects team in Canary Wharf. The role involves leading technical delivery and management for complex water infrastructure projects. The ideal candidate should have over 5 years of experience in drainage engineering and ...

Senior AI Engineer Python, LLM, MLOps (Remote/WFH)

Client Server Ltd. is on the lookout for a Senior AI Engineer specializing in Python LLM MLOps, based in London. This role includes designing autonomous AI systems and deploying large language models, working closely with clients in finance technology. The ideal candidate possesses a strong background ...

Applied AI Engineer III ML & GenAI in Production

A leading global bank seeks a Software Engineer III to develop advanced AI and machine learning solutions. This role involves collaborating in a diverse team environment to deliver innovative banking experiences. Candidates should possess a strong background in AI/ML, coding proficiency in Python, and experience ...

Pre Silicon Modelling Engineer — AI Accelerator Systems

Fractile is seeking a Hardware Modelling Engineer to develop pre-silicon models for AI acceleration hardware. This role focuses on crucial architectural and performance modeling aspects, enabling collaborative efforts with hardware, software, and ML teams. Ideal candidates will have depth of knowledge ...

Senior Radar Systems Engineer: Phased Array & DSP Leader

Expert Employment is seeking a Senior Radar Systems Engineer to join their team in developing advanced radar systems. The role involves modeling, designing, and analyzing radar systems, while also supporting hardware and software development and creating digital signal processing algorithms. The ideal ...

Principal Cybersecurity Engineer — Hands on at Scale

A global financial services organisation is seeking a Principal Cybersecurity Engineer to help build the next generation of data-driven security capabilities. This senior (Director grade) position requires deep cyber expertise and elite software engineering abilities. The role involves working on compl ...

Junior Automation Test Engineer — Grow with CI/CD & Modern QA

IntaPeople Limited is seeking a Junior Automation Test Engineer to support testing and quality assurance for a contemporary software platform. This role is perfect for individuals early in their career who wish to gain hands-on experience with automation frameworks and CI/CD environments. Key responsib ...

Senior Optimization Engineer – Semiconductors (Hybrid)

Flexciton is seeking a Software Engineer in Greater London to join our team focusing on optimising semiconductor production. You will develop advanced algorithms and decision-making models essential for automating factory processes, serving leading companies like Seagate. Applicants should have a unive ...

Senior PCB Layout Engineer — High Speed RF & Flex PCBs

Harris Geospatial Solutions is seeking a Senior PCB Layout Engineer to develop sophisticated PCB designs for products in Electronic Warfare and Data Encryption. The role involves collaborating with diverse teams to ensure that designs meet stringent specifications. Applicants must demonstrate expertise ...

Principal Platform Engineer: Enablement & AI

United States Digital Space LLC is looking for a Principal Software Engineer to provide technical leadership and architectural vision for the Field Platform. This role focuses on evolving and scaling the platform, ensuring a secure and resilient experience for field colleagues. The candidate will drive ...

Lead Routing Engineer — Optimisation & Planning

HIVED Ltd, based in London, is seeking a Lead Engineer to drive the technical direction of the Routing Squad, focusing on supply-demand matching and routing optimisation. In this role, you'll lead engineers to deliver innovative solutions that enhance parcel distribution efficiency. Ideal candidates will have ov ...

Aviation eOps Engineer: Onboard Ground Systems Integrator

British Airways PLC is hiring a Technical Engineer for eOps to improve the integration of aircraft systems with groundIT infrastructure. This role ensures efficient data flows and reliability in aircraft operations. You'll support various technical aspects including Field Loadable Software management and Airc ...

Senior Electrical Engineer, Building & Sustainability

Wearemapp is seeking a Senior Electrical Engineer to join our Building Consultancy team based in London. The candidate will lead the design and co-ordination of electrical services, underscoring our commitment to innovative solutions. With a competitive salary between £55,000 and £65,000, the position ...

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    Full Stack Software Engineer Javascript React Elixir Jobs in United Kingdom Job Search Guide, Trends and Insights