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Introduction If your skills, experience, and qualifications match those in this job overview, do not delay your application. Saab in UK is growing rapidly, with over 500 colleagues across eight sites. We bring together Swedish heritage and British expertise to drive innovation in areas such as software engineering, underwater robotics, radars, AI, and armed forces training. Joining Saab in UK means contributing to the security and resilience of society while building a career with real scope for personal and professional growth. The Role: This role is part of Saab BlueBear in Bedfordshire. You will be required to support a mixture of R&D and product development activities and will be keen to get involved in all development areas, and have a good track history / proven track record in both problem solving and quality software development. Your role as a Sensor Fusion Lead will involve architecting, designing, implementing and testing embedded applications primarily focused around sensor suite integration and fusion. You may also lead a small team of other engineers. Tasks will generally involve architecting software systems and features that facilitate our state of the art methods for navigation in a variety of environments using our in-house fleet of UAVs. Key Responsibilities: Primarily, your role will be to maintain, architect and develop our current sensor fusion capabilities and add new features in a structured and maintainable manner under direction of product owner (Head of Digital Systems). Research, Architect, Design and Test Sensor Fusion algorithms using Mathworks products. Technically lead the software development for Sensor Fusion activities to deliver new features and capabilities to our Autonomy and UAV systems. Ensure the Sensor Fusion software considers and implements redundancy, real-time, safety/critical and security objectives. Proactively engage with other engineers, teams and leadership to ensure needs are understood and met. Gain system wide knowledge and become a subject matter expert in the Sensor Fusion field. Ensure Sensor Fusion knowledge transfer through written and other methods to the rest of the team. Gain understanding and technically contribute to the wider software team and software projects. Skills and Experience: Strong working experience of developing embedded C++ applications. Knowledge of state estimation / sensor fusion / navigation tools and techniques e.g. Kalman filters. Knowledge of the principles and characteristics of sensors and sensing processes. Experience in data processing and analysis. Experience in sensor selection, evaluation and modelling. Understanding of flight mechanics. Software Architecture skills for Embedded Systems and/or backend/server-based applications taking into account constraints of performance, security and redundancy Looks to work collaboratively rather than in isolation. Knowledge of GNSS and other positioning technologies (e.g. Visual Navigation). Working knowledge of Linux and/or real time operating systems such as FreeRTOS. Good understanding of development tool chain for debugging and problem solving using e.g. gdb. Knowledge of networking (e.g.TCP/IP). Knowledge of serial interfaces (e.g. RS422/485). Able to use (or even create) CI/CD pipelines using Jenkins or similar. Knowledge of Matlab/Simulink Testing (Unit, Integration) and/or Test automation experience. Experience as a Technical leader. Experience mentoring junior engineers. Understanding of quality, safety and security standards for software (e.g. DO-178). Good communication skills for internal and external technical discussions. xrnqpay Knowledge of any of the following MQTT, DDS and GIS. Existing SC Clearance would be advantageous. By submitting an application to Saab UK you consent to undertaking workforce screening activities that may include but are not limited to: Baseline Personnel Security checks, National Security Vetting, reference checks, verification of working rights and in all circumstances preferred candidates will be placed through a security interview

QA Engineer | £38,000 – £45,000 | Remote/Bedford | EdTech Join a well-established EdTech company building engaging maths-based learning products used by millions of children worldwide. We’re looking for a QA Engineer to become the first dedicated quality hire, helping shape how testing is done across a growing product suite. What You’ll Do Perform manual and exploratory testing across new features and releases Identify, reproduce and document bugs clearly using tools like Sentry and Asana Run regression testing across high-risk areas of the platform Work closely with developers, product managers and designers to ensure quality throughout development Build and maintain automated end-to-end tests (Playwright) for key user journeys Contribute to existing test frameworks (Jest, Vitest, Jasmine) Help developers improve their own testing through collaboration and feedback Support test planning by identifying edge cases and improving testability early What We’re Looking For 3+ years’ experience in QA, Test Engineering or similar Strong manual and exploratory testing skills Experience writing automated tests (Jest, Playwright, Cypress or similar) Comfortable testing modern web applications (Angular, React or similar) Understanding of APIs and backend services Good grasp of the software development lifecycle Clear communicator who can document and explain issues effectively Comfortable working embedded within a cross-functional team Nice to Have Experience testing high-traffic or large-scale applications Familiarity with MySQL or database-level validation Experience with Sentry or similar monitoring tools Exposure to Docker or containerised environments Background in EdTech or mission-driven organisations Experience working in smaller teams with broad responsibilities Tech Stack Angular, React, Node.js (Nest.js), PHP (Yii), MySQL, Redis, Playwright, Jest, Vitest, Jasmine, Docker, Kubernetes, AWS, Sentry, Grafana, CI/CD pipelines Benefits £38,000 – £45,000 salary Remote working with monthly trips to Bedford office Pension Gym membership or private health insurance Free mental health support via Open Up Opportunity to shape QA practices as the first dedicated hire

Compensation: Competitive, based on location and experience .Location: UK or Turkey (Hybrid – Office & Remote).Keepnet is an AI-driven SaaS platform experiencing strong, sustained growth in the UK with growing global momentum, helping organisations manage human cyber risk at scale.Keepnet runs

We’re hiring a senior backend engineer to join a disciplined, senior team responsible for the platform behind Eequ, where engineers have real ownership and operate with high autonomy. Build and operate the backend platform that powers a real marketplace handling bookings, payments, and reporting f

Our backend tech stack is Spring Boot with Java/Kotlin/Groovy, MySQL and Opensearch, hosted on AWS. Our frontend is React with Typescript, and you will be expected to contribute small features to the frontend (though the role is at least 95% backend). You're an experienced engineer with multiple ye

We are looking for a Senior Backend Engineer to join our new Quantitative Sports team. As a Senior Engineer you will play a critical role in the development and maintenance of the backend aspects of the pricing system for our sportsbook and work alongside our quantitative analysts to deliver our in-

The role involves the design and development of backend services and infrastructure for Machine Learning workloads.

Senior Backend Engineer | Python, FastAPI & Scaling | Security SaaS. Senior Backend Engineer – High-Scale Systems | Python & FastAPI | Security SaaS. Senior Backend Engineer – High-Scale Systems | Python & FastAPI | Security SaaS.

Backend Developer Romsey, Hampshire (Hybrid - 3 days office / 2 remote, flexible)£45,000 - £50,000 + BenefitsOOP, PHP, LaravelMy client build innovative SaaS solutions that help organisations monitor, manage, and optimise critical infrastructure.

Software Architect Java - BackEnd, Back End Google Cloud (GCP).

A well-funded cybersecurity intelligence firm in London is seeking a Senior Lead Software Engineer to design and build scalable backend services and influence architectural decisions.

A pioneering AI research organization is seeking a Backend Software Engineer to develop innovative tools for frontier AGI safety research, focusing on internal tooling and automated evaluation pipelines.

We are looking for an exceptional Software Engineer, to join our Backend Engineering squad.

The role involves leading backend development using advanced Python skills and collaborating with product and design teams.

A leading tech company is seeking a MongoDB Developer to lead database delivery, including schema design and performance tuning.The ideal candidate will have 6-10 years of experience in software development focused on MongoDB, strong analytical skills, and a collaborative approach.Responsibilities i

A leading AI company in Greater London is seeking a Senior Software Engineer to lead backend and edge/IoT engineering for high-impact projects.

A leading fintech company is looking for a Senior Backend Developer to own the infrastructure for data pipelines, APIs, and databases. The role requires 5+ years of backend experience, particularly in TypeScript, and familiarity with real-time systems such as WebSockets.

A leading game development firm in the United Kingdom is seeking a Principal Backend Engineer to lead the delivery and deployment of backend services for game projects.

This hybrid role requires expertise in Java and microservices architecture, with responsibilities including developing new features and maintaining backend services.

Senior Software Engineer I - Backend (Java) - Business Accounting Integrations and Reporting. Strong proficiency in backend programming languages like Java, Python or Go.

A leading sportswear company is seeking a Backend Software Engineer to develop and maintain cloud-native applications using TypeScript and microservice architectures. Candidates should have at least 3 years of backend experience and a strong collaborative mindset.

A leading global investment firm is seeking a Senior Java Developer to design and develop scalable applications that support trading operations.This role involves collaboration with multi-functional teams, optimizing high-performance APIs, and mentoring junior engineers.The ideal candidate will have

A cutting-edge AI company in Greater London seeks a Lead Software Engineer to spearhead backend and edge/IoT engineering for Defence projects.

We're a startup in the automated decisioning space - and the backend is where the hard problems live. We're looking for a Senior Backend Engineer to join our engineering teams. Build and operate backend services in Python on AWS - Lambda functions, DynamoDB, Aurora, and event-driven pipelines that h

You will have a leading role in designing, developing and maintaining the backend system that powers our cybersecurity platform – the platform we use to identify vulnerabilities in large enterprises.

Architecting, developing, and maintaining high-performance, scalable backend services that underpin our operational data and AI systems. Different backend languages, including Java, Rust, Python and Go. Experience in designing and developing features and improvements, as well as supporting and maint

As a Backend Engineer on Spotify's Core Infrastructure team, you'll build and maintain the platform foundations that power Spotify for 600M+ users globally.

A leading online gaming company is seeking a skilled developer for backend programming in Go as part of a hybrid role.

A growing AI startup in London seeks a Staff/Senior Backend Engineer to build robust systems for their AI platform.

A leading tech company in Greater London is looking for a Backend Engineer to build and maintain the platform foundations for their services used by over 600M users globally.

A leading infrastructure company in Greater London is seeking a Software Engineer to architect and develop its cloud platform.The ideal candidate will have extensive experience with Go and Kubernetes, and a strong focus on security and performance.This role offers the opportunity to collaborate with

Ensure reliability and continuous evolution of your focus area, whether frontend, backend, or infrastructure. Note: if you are more specialized in one over the other (backend vs infrastructure), please still apply!. We’re hiring a Member of Technical Staff (Backend/Infra) at Ona.

Backend Engineer with 5+ years of experience specialising in Java and Spring Boot-based microservices. Designed and developed scalable backend services using Java and Spring Boot, supporting a high-availability microservices architecture. Backend Development: Java, Spring Boot, Microservices Archite

As a Security & Backend Engineer, you will own core pieces of our Scala + Python backend while raising the bar on how we protect data, systems, and customers. You will design and build backend services, shape secure‑by‑default patterns, and lead practical security work across authentication, aut

A leading secondhand fashion company in London is seeking a Senior Backend Engineer to join their product engineering team focused on digitizing the supply chain. You will design and build backend systems for their marketplace, integrating AI for seamless inventory workflows.

A leading technology firm in Greater London is seeking a Security & Backend Engineer to enhance its core data solutions. The ideal candidate will own backend services and ensure data and system security, balancing feature delivery with long-term hardening. You should have over 5 years of experience

This role involves developing and maintaining high-performance backend systems, integrating RESTful microservices, and leveraging big data tools like Spark and Kafka.

This remote position focuses on backend and API testing, ensuring quality across their services.

We are looking for a Backend Engineer who will help build our Receive platform. Strong proficiency in backend programming languages like Java, Python or Go.

Backend Development: 4+ years of experience in backend development, ideally with expertise in both PHP (Symfony) and JavaScript (Node. Technology Evaluation and Enhancement: Conduct thorough assessments of our current PHP (Symfony) & NodeJS based backend applications and infrastructure to pinpoint i

A leading decision-making software company is seeking a Senior Backend Engineer to build and operate backend services using Python on AWS. The role involves tackling complex backend challenges and making key architectural decisions.

As a Backend Software Engineer you will design and develop data centric backend services for the core platform with a focus on Python coding and building FastAPIs within an Azure environment with Databricks. Backend Software Engineer / Developer (Python FastAPI SQL IaC) London to £95k. Are you a da

A full-service product and engineering agency is seeking a Mid/Senior Software Engineer in London with a backend development focus.

You’ll dive into Electroverse Backend, the logic that drives the Electric Vehicle (EV) charging experience at Octopus Energy, and work toward deploying backend features to our global user base. You will learn the key skills and architectural patterns (Git, Python, CI/CD and network interfaces) req

Experience in backend development, with a focus on cloud-based solutions. SurrealDB is looking for a highly skilled and experienced Senior Backend Engineer to join our dynamic engineering team. Based in London, the ideal candidate will have a strong background in cloud technologies, building scalabl

Design, develop, and maintain backend services that support model training, inference, and experimentation.

A leading identity verification firm in Greater London is searching for a Manager, Software Engineering to lead the design of scalable, high-performance backend systems.

A recruitment agency is seeking a Senior Technical Lead to guide the delivery of scalable backend systems. This position balances leadership, architecture, and hands-on coding, with a focus on delivering impactful backend solutions.