129 jobs found

Senior Software Engineer / Developer (LLM TypeScript Node API) London / WFH to £100k Are you a senior technologist with experience of productionising LLMs? You could be joining a scaling tech company that has developed a digital distribution platform transforming electronic trading in the institutional FX options market via a central marketplace where institutions can place, discover and match optio click apply for full job details

Backend Software Engineer / Developer (C++ Rust Low Latency Trading) London / WFH to £180k+ Opportunity to join a hugely profitable High Frequency Trading firm that specialise in crypto markets and earning substantial bonuses in a senior, hands-on Backend Software Engineer role, working with Rust. As a Backend Software Engineer you will design and develop high throughput backend services for microse click apply for full job details

Want to work on a large Defence site supporting highly secure accounts? Were growing our team of DevOps Automation Engineers and looking for people with a range of skills to help automate key elements of service. Youll combine software engineering and operations expertise to automate tasks, monitor system health and optimise infrastructure click apply for full job details

Full-time, Permanent, On Site Are you looking to work at a company built by Developers for Developers? Are you looking to work in a genuinely Lean Agile way, where there is no enforced overtime or crunch? Do you want to work in a high-quality environment where you can choose your tools and equipment? Would you like to collaborate with a team of experienced developers and grow your skills while work click apply for full job details

Senior Frontend Developer - £55,000-£65,000 - Warrington/Remote Over the past fifteen years, Talos360 has firmly established itself as a market leader in talent software solutions and online recruitment media with our innovations in the HR software space, Talos ATS & Talos Engage, Appraisd by Talos solving todays talent and performance challenges click apply for full job details

Software development in C++ and Rust for low latency transactions This company creates ultra-high-speed FPGA-based hardware and highly optimised software for specialised applications requiring maximum performance. Due to continued growth, they are seeking an experienced C++ software engineer to join their Cambridge-based development team. In this senior engineering role, you will help shape the software component of their system. Written in C++ and increasingly in Rust, this code runs in a Linux environment, and is responsible for control functionality and oversight of the hardware. You would be contributing to its design, development, test, and deployment throughout the software development lifecycle. Aspects you might typically be involved in include concurrency, threaded programming, communications protocols, and maximising performance by leveraging CPU and memory architectures. You may well also be called upon to impart your knowledge to less experienced engineers and to collaborate with colleagues and stakeholders, including from non-engineering specialisms. You will need: A good degree in computer science or related discipline from a well-respected university. Demonstrably excellent software design and implementation skills, including strong skills in C++ and at least an interest in using Rust. A good understanding of DevOps techniques. Good communication and team-working skills and an analytical approach to problem solving. Full, existing, and unrestricted UK work permission. This is a great opportunity for an accomplished Senior C++ Developer with a penchant for thinking outside the box to push the limits of highly optimised code. Whilst highly profitable, this company was founded primarily with altruistic aims in mind - a philosophy that includes taking good care of their employees and providing a friendly and supportive workplace culture. They offer a competitive compensation package including performance-based bonuses. Hybrid working is available for up to two day per week with the remainder being based at their Cambridge offices. Another top job from ECM, the high-tech recruitment experts. Even if this job's not quite right, do contact us now - we may well have the ideal job for you. To discuss your requirements call (phone number removed) or email your CV. We will always ask before forwarding your CV. Please apply (quoting ref: CV27571 ) only if you are eligible to live and work in the UK. By submitting your details you certify that the information you provide is accurate.

Are you a Senior / Lead .NET Software Developer who is keen to work for a Certified B Corp? Are you keen to use your Full Stack Development skills to create bespoke lending solutions that help UK homeowners build long-term financial wellbeing? We re looking for a Lead Software Engineer to help shape the future of our technology platform. You will lead and inspire a talented team while remaining hands-on with architecture and delivery. You ll play a pivotal role in designing, building and evolving resilient, high-performance systems using the Microsoft stack, working across C#, .NET, SQL, Azure and modern front-end technologies such as React, JavaScript and TypeScript. If you have a passion for emerging technologies, DevOps, cloud platforms, this is the role for you Role: Lead Software Developer, Senior .NET Developer, Senior Software Engineer, Lead Software Engineer, Senior Full Stack Developer, Full Stack Developer, Senior Developer Location: Manchester Hybrid working is in place Salary: up to £70k base salary + awesome benefits Benefits include 25 days annual leave plus bank holidays, your birthday off every year, a healthcare cash plan, pension contributions matched up to 5%, life assurance, long service awards and a cycle to work scheme. Sound like something you are keen to be a part of? CLICK APPLY and send through a copy of a CV.

Job Title: Java Developer Location: Glasgow/Bournemouth - fully onsite Salary/Rate: 409 INSIDE IR35 Job Type: Contract Company Introduction The Java developer will be responsible for designing, developing, and maintaining software applications using AWS, SQL, Spring Boot, Java, Spring MVC, JavaScript, and MySQL. Job Responsibilities/Objectives Develop high-quality software design and architecture using AWS, SQL, Spring Boot, Java, Spring MVC, JavaScript, and MySQL. Collaborate with cross-functional teams to define, design, and ship new features. Some hands on knowledge on React JS, Redux, HTML5, CSS3 Some exposure to frontend testing tools like Jest Ensure the performance, quality, and responsiveness of applications. Identify and correct bottlenecks and fix bugs. Maintain code quality, organization, and automation. Implement security and data protection measures. Conduct software analysis, programming, testing, and debugging. Oversee the development of documentation throughout the software development life cycle. Provide technical guidance and support to team members. Stay up-to-date with emerging technologies and industry trends. Optimize applications for maximum speed and scalability. Participate in code reviews to maintain high code quality standards. Contribute to continuous improvement by investigating alternatives and technologies. If you are interested in this opportunity, please apply now with your updated CV in Microsoft Word/PDF format. Disclaimer Notwithstanding any guidelines given to level of experience sought, we will consider candidates from outside this range if they can demonstrate the necessary competencies. Square One is acting as both an employment agency and an employment business, and is an equal opportunities recruitment business. Square One embraces diversity and will treat everyone equally. Please see our website for our full diversity statement.

Front End / JavaScript Developer Salary: Up to £40,000, depending on experience Location: Fully Remote Industry: iGaming Provider Overview: We are looking for a motivated Remote Front-End / JavaScript Developer to join a team and support the development of high-quality web and mobile games. This role offers a great opportunity to work within the iGaming sector, collaborating with cross-functional teams to enhance game development processes. Key Responsibilities: Assist in developing and maintaining mobile and web-based games using JavaScript and Pixi.js Work closely with designers, artists, project managers, and testers to deliver engaging and well-optimised games Write clean, efficient, and maintainable code Support the implementation of Unit Tests to ensure code quality Debug and troubleshoot technical issues with guidance from senior developers Participate in regular code reviews and learn best coding practices Work within agreed timeframes and accurately log time spent on tasks Stay up to date with industry trends and best practices in front-end development Required Skills and Experience: Some experience with JavaScript (including ES6+ features like Classes and Promises) Understanding of HTML5, CSS, and JSON Ideally experience with game engines such as Pixi.js or Phaser Familiarity with version control systems (preferably Git) Strong problem-solving skills and attention to detail Ability to plan and prioritise workload effectively Good communication skills and ability to work as part of a team Desirable Experience: Previous experience or strong interest in the iGaming industry Familiarity with Node.js Exposure to Unit Testing and Automated Testing in JavaScript Understanding of Agile development methodologies A relevant degree in Computer Science, Software Engineering, or a related field Benefits: Salary £35k-£40k (depending on experience) Holidays 25 days + bank holidays (pro-rated) Plus your birthday off Pension Competitive plan via Standard Life Life Cover 2x salary from day one Shares Access to employee share schemes Salary Sacrifice Childcare, cycling & pensions Wellbeing Healthcare savings & support services Discounts Save on shopping, travel, days out & more This is an exciting opportunity for a Front End developer to work on innovative projects in a supportive and collaborative environment. Interested? Please apply to

Senior Agentic AI Developer Python, LangGraph, RAG, Knowledge Graphs A high-growth, technology-led scale-up (backed by a global leading organisation) is expanding its engineering capability following a highly successful 2025. As part of significant continued investment, they are hiring a Senior Agentic AI Developer to lead the design and development of next-generation AI products and services across Finance, supporting both internal operations and external platforms. This is an opportunity to work in a modern, cloud-native engineering environment, building intelligent agentic AI systems that can reason, plan and act autonomously. You will take ownership of solutions end-to-end from design and architecture, through development and deployment, to optimisation and continuous improvement. You ll work closely with engineering, product and platform teams to embed Agentic AI and LLM-driven workflows into real-world products, contributing to architectural decisions, engineering standards and best practices. Location: Leeds / Bradford (Hybrid 2 days per week) or Remote Salary: £90,000 £110,000 + 15% Bonus + Excellent Benefits To be considered Strong experience as an AI Engineer / ML Engineer / Software Engineer with applied AI exposure. Hands-on Python development experience delivering production-grade systems. Practical experience building agentic AI workflows (LangGraph / LangChain or similar frameworks). Exposure to Knowledge Graphs (Neo4j / RDF / graph-based enrichment or retrieval). Experience integrating LLM APIs (OpenAI or similar), with prompt design and orchestration. This is an excellent opportunity for a senior developer to build impactful Agentic AI systems, influence technical direction, and work within an organisation that is actively investing in AI as a core capability.

Overview We are looking for a Software Architects to drive forward the Defence sector within Electrical and Embedded Systems. This is an exciting opportunity to make a real difference to the client projects that you are involved in. Further details on the roles can be found below: Software Architect - Due to business growth and increased demand, an additional Software Architect is required to support the business in delivering the current and next generation of Mine Counter Measures capabilities. Responsibilities Due to business growth and increased demand, an additional Software Architect is required to support the business in delivering the current and next generation of Mine Counter Measures capabilities. The successful applicant will be involved in a wide range of activities from defining/updating the technical solution, contributing to system requirements, meeting with customers and key stakeholders, guiding and advising the development team, and supporting the entire project team from start to end. In this particular instance (due to the small scale of the team), the SW Architect will be expected to participate in some of the SW development activities. Training and mentoring will be provided, however this is a senior role and the individual is expected to be self-driven and able to drive others rather than be told what to do. This role will involve bids, architecture and design, development, and support. Occasional travel to sister company and client sites is expected, as projects demand. Qualifications Member of a professional body Engineering Degree or equivalent Essential skills Self-driven problem solver (Taking ownership as needed and calling on other expertise and network contacts so you can act as an unblocker for others and providing steerage) Demonstrable experience with software architecture of large systems or development of large complex systems Confident and commercially aware when presenting to senior management and senior customers Able to adjust the level of technical detail being conversed to suite the audience; you'll be expected to work closely with developers, engineering delivery managers, other architects, product line architects, & customers Confidence and ability using modelling tools such as Enterprise Architect - training in the actual tool used will be provided if necessary Ability to show strategic awareness and make balanced, thought through, defendable decisions. Confidence to challenge others and open to be challenged Must be able to consider the whole system and understand the impact of software outside of the software system i.e. System level requirements and behaviour and Hardware requirements and behaviour Able to describe and hold detailed conversations at every level from development, component interaction and architecture, hardware interaction, system interaction, and business strategy. Able to balance the short term goals of the project with the longer term goals of the product roadmap C++, Java, Python (Detailed knowledge of C++, with an appreciation of Java and Python) Networking (routing, firewalls, switch config) Linux (ideally Red Hat) Hardware (Basic knowledge of the components, connectors and hardware architecture of a solution) SW development and Architecting of real time systems Desired skills Containerisation (podman / kubernetes) Security (SELinux, STIG / CIS lockdown, cryptographic principles, TPM) Software build process (Make, CMake, Maven, Gradle, Jenkins, git, artifactory) Embedded SW Development Rhapsody or Enterprise Architect Experience in the Defence, Telecommunications or other Engineering industry Experience of Radio Communication systems What do I need before I apply Some travel to client sites may be required. Therefore, flexibility to travel and work at other locations is desirable. Benefits Collaborative working environment - we stand shoulder to shoulder with our clients and our peers through good times and challenges We empower all passionate technology loving professionals by allowing them to expand their skills and take part in inspiring projects Expleo Academy - enables you to acquire and develop the right skills by delivering a suite of accredited training courses Competitive company benefits Always working as one team, our people are not afraid to think big and challenge the status quo As a Disability Confident Committed Employer we have committed to: Ensure our recruitment process is inclusive and accessible Communicating and promoting vacancies Offering an interview to disabled people who meet the minimum criteria for the job Anticipating and providing reasonable adjustments as required Supporting any existing employee who acquires a disability or long term health condition, enabling them to stay in work at least one activity that will make a difference for disabled people "We are an equal opportunities employer and welcome applications from all suitably qualified persons regardless of their race, sex, disability, religion/belief, sexual orientation or age". We treat everyone fairly and equitably across the organisation, including providing any additional support and adjustments needed for everyone to thrive

The software engineering department is scaling rapidly, and the platform maturity needs to keep pace. This is a new senior hire , joining an existing SRE team of two as part of a planned expansion. The focus is on building a robust, secure, and repeatable platform that enables developers to ship with confidence as the organisation grows. You will have meaningful influence over how reliability, security, and operational standards are defined and implemented. Up to 80,000 Southampton Hybrid (2 days onsite) What you will be responsible for You will take a senior, hands-on role in shaping the platform and guiding technical direction, while still remaining close to the work. Key areas of responsibility include: Designing and evolving cloud infrastructure using Terraform as a first-class practice Improving platform reliability, scalability, and security posture Working closely with development teams to enable safe, efficient delivery Leading by example on observability, incident analysis, and operational discipline Helping define and embed SRE best practices as the team grows There is no on-call expectation. The emphasis is on building resilient systems , not reacting to constant failure. What we are looking for Essential Strong, hands-on Terraform experience in production environments Proven experience operating and improving cloud-based platforms Confidence making architectural and operational decisions Ability to mentor others and raise the technical bar of the team Useful, but not required Deep experience with container platforms or managed Kubernetes Observability platforms such as Datadog GitOps practices and strong documentation habits This role suits someone who enjoys ownership, values thoughtful engineering, and wants to help build a platform function the right way rather than inheriting chaos. Apply now or contact Chris Lynes at Spectrum IT Recruitment for more information Spectrum IT Recruitment (South) Limited is acting as an Employment Agency in relation to this vacancy.