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1 Contract API job in Burton End (CO9) + 20 miles
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Location: Bishops Stortford - Salary: Up to £50k - Do you have two years software development experience? Do you have a strong foundation in C# development? Would you enjoy working on projects that involve data integrations, security systems, and enterprise-scale solutions? This role is ideal for someone with around 2 years experience, looking to build on their skills with mentoring from senior engineers. The Company - Our client is a fast-growing technology business that designs and delivers bespoke software solutions, data integrations, and consultancy services. Since their launch in 2020, they have built a strong reputation for developing custom integrations between third-party systems and access control/security platforms, supporting sectors including higher education, commercial real estate, healthcare, and defence.
Location: Bishops Stortford - Salary: Up to £50k - Do you have two years software development experience? Do you have a strong foundation in C# development? Would you enjoy working on projects that involve data integrations, security systems, and enterprise-scale solutions? This role is ideal for someone with around 2 years experience, looking to build on their skills with mentoring from senior engineers. The Company - Our client is a fast-growing technology business that designs and delivers bespoke software solutions, data integrations, and consultancy services. Since their launch in 2020, they have built a strong reputation for developing custom integrations between third-party systems and access control/security platforms, supporting sectors including higher education, commercial real estate, healthcare, and defence.
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Our client, a growing company based in London is seeking an experienced Lead Software Engineer to take ownership of the technology stack and guide the engineering team through this next phase of growth. As Lead, you will act as a player-coach: shipping critical code yourself while mentoring engineers, driving technical strategy, and ensuring the platform scales with rapid international growth. * Lead end-to-end development and delivery of core features across mobile, backend, and internal tooling. * Mentor engineers through code reviews, pairing, and establishing strong engineering practices. * 5+ years of software engineering experience, ideally in a fast-moving startup or product-led environment. This is a hands-on leadership role, combining technical delivery with
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The RoleAs a Senior Software Development Engineer, you will support development activities across a range of technology areas including Radio Frequency/Optical communications, RADAR/Electronic Warfare, Global Navigation Satellite Systems, Cyber/Crypto-Security and Joint, Air, Land and Maritime Domains with projects spanning all levels of technical maturity from proof-of-concept demonstrators to full production systems. Join us as a Senior Software Development Engineer at our Malvern site, where you will have the opportunity to work with cutting-edge technology in partnership with some of the most brilliant minds. * Support the delivery of cutting edge projects, shaping how delivery is executed and applying your development skills across a range of activities across the full software <
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Shadwell, East London (E1), E1 1EW
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City of London (EC2A)
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Role - .Net Engineer We are working in partnership with a leading defence systems integrator to recruit a .Net Engineer for a major long-term programme of work. As a .Net Engineer, you’ll have a key role in the full software development lifecycle, from design and coding through to testing, integration, and delivery. We’re looking for an enthusiastic and self-driven Software Engineer who enjoys solving complex problems and working within a high-performing technical team. Location - Hybrid, Home and twice a month onsite (multiple locations) Contract - Initial 3 months, high probability of extension to 2027 - Rate - £475 to £525 per day - Start - ASAP - This role has been deemed Inside IR35. You must hold active SC Clearance to be eligible for this role. The Opportunity - This is an exciting opportunity
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Meta is seeking talented principal engineers to join our teams in building cutting-edge products that connect billions of people around the world. If you're interested in leading a world-class team of engineers and researchers to work on exciting projects that have significant impact, we encourage you to apply. * Experience mentoring/influencing experienced engineers across organizations - As a member of our team, you will manage complex technical problems, build new features, and improve existing products across various platforms, including mobile devices and web applications. Our teams are constantly pushing the boundaries of user experience, and we're looking for passionate individuals who can help us advance the way people connect globally. * Drive the team's goals and technical direction to pursue opportunities t
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Senior Software Engineer Java Full Stack
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£65000 - £80000 per annum + bonus + benefits
Senior Software Engineer / Developer (Java Full Stack) Guildford / WFH to £80k - Apply now to find out more about this Senior Software Engineer / Developer (Java Full Stack) opportunity. As a Senior Software Engineer you will design and develop client based features and enhancements, working across the full technology stack on confidential projects. Do you have strong Java skills combined with full stack development experience? You could be progressing your career in a senior, hands-on role at a scaling technology com
Senior Software Engineer / Developer (Java Full Stack) Guildford / WFH to £80k - Apply now to find out more about this Senior Software Engineer / Developer (Java Full Stack) opportunity. As a Senior Software Engineer you will design and develop client based features and enhancements, working across the full technology stack on confidential projects. Do you have strong Java skills combined with full stack development experience? You could be progressing your career in a senior, hands-on role at a scaling technology com
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Fully Remote Senior C#. NET IOT Developer (Outside IR35)
Fully Remote Senior C#. NET IOT Developer (Outside IR35)
CodeFirst
Republic of Ireland
From £400 to £450 per day
We have a rare opportunity for a long-term, remote-working senior C# developer contract that falls outside of IR35. We are seeking a Senior .NET Software Engineer with proven, production-grade experience in C# .NET to lead and deliver critical software components across simulation, IoT integration, and industrial-facing services. * Experience with IoT platforms, device integration, or industrial communication protocols. * The opportunity to build software used alongside real industrial equipment and IoT devices. * Training and support to learn the industrial-automation and IOT domains. About the Role - You will operate as a hands-on engineer with ownership over architecture, reliability, and long-term technical direction. Required Ski
We have a rare opportunity for a long-term, remote-working senior C# developer contract that falls outside of IR35. We are seeking a Senior .NET Software Engineer with proven, production-grade experience in C# .NET to lead and deliver critical software components across simulation, IoT integration, and industrial-facing services. * Experience with IoT platforms, device integration, or industrial communication protocols. * The opportunity to build software used alongside real industrial equipment and IoT devices. * Training and support to learn the industrial-automation and IOT domains. About the Role - You will operate as a hands-on engineer with ownership over architecture, reliability, and long-term technical direction. Required Ski
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A well-established R&D organisation who are also a market leader, are looking to rapidly expand their engineering team and as such are seeking an Embedded Software Engineer to join their development team near Leicestershire. As an Embedded Software Engineer you will have a background in Digital Signal Processing and a working knowledge of communications systems engineering. To successful candidate for the Embedded Software Engineer job will have a mixture of embedded/bare metal experience alongside an understanding of implementing communication signal processing algorithms such as DDCs, filters, FFTs. This is a great chance for a Embedded Software Engineer to join a consistently growing technology company offering great training and c
A well-established R&D organisation who are also a market leader, are looking to rapidly expand their engineering team and as such are seeking an Embedded Software Engineer to join their development team near Leicestershire. As an Embedded Software Engineer you will have a background in Digital Signal Processing and a working knowledge of communications systems engineering. To successful candidate for the Embedded Software Engineer job will have a mixture of embedded/bare metal experience alongside an understanding of implementing communication signal processing algorithms such as DDCs, filters, FFTs. This is a great chance for a Embedded Software Engineer to join a consistently growing technology company offering great training and c
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Job Role: Senior Full Stack Engineer As a Senior Full Stack Engineer, you'll design, build, and maintain high-quality features across backend and frontend systems. Are you a passionate full-stack engineer who thrives in high-growth, fast-paced environments? * Build, enhance, and maintain full-stack features across backend and frontend systems. You'll work closely with designers, product managers, and fellow engineers to translate vision and requirements into scalable, elegant solutions. Working Model: Permanent - Location: Remote - Salary: Up to £85,000 - Do you love building across both frontend and backend systems, solving complex engineering challenges, and shaping seamless user experiences? This is an exciting opportunity to join
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Job Title: Bazel Backend Developer Senior Engineer Bazel Backend Engineer Do you love creating seamless developer experiences and enabling others to work in flow? Were looking for a collaborative and curious Engineer to help shape the next generation of developer infrastructure and tooling. * Drive the evolution of backend engineering by leveraging your expertise in Bazel and large-scale monorepos. * Lead migration efforts and maintain Bazel along with abstractions that enhance developer experience. * Passionate about developer productivity and experience. Are you passionate about making build systems fast, integrated, automated, and insightful? Youll play a key role in building a unified, scalable monorepo ecosystem that empowers engineers to innovat
Job Title: Bazel Backend Developer Senior Engineer Bazel Backend Engineer Do you love creating seamless developer experiences and enabling others to work in flow? Were looking for a collaborative and curious Engineer to help shape the next generation of developer infrastructure and tooling. * Drive the evolution of backend engineering by leveraging your expertise in Bazel and large-scale monorepos. * Lead migration efforts and maintain Bazel along with abstractions that enhance developer experience. * Passionate about developer productivity and experience. Are you passionate about making build systems fast, integrated, automated, and insightful? Youll play a key role in building a unified, scalable monorepo ecosystem that empowers engineers to innovat
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I am currently working with a London-based Financial Services client who are actively seeking 3 software engineers to work on the development of a cutting-edge platform with a range of new technologies including AI. * Strong software development experience with modern programming languages such as Rust, Golang, Haskell etc. * Good experience with React, Next.JS, Typescript, Javascript. * Experience working in a fintech/start-up environment on SaaS, B2B or B2C products - nice to have. * Active interest or experience in artificial intelligence and/or cybersecurity. * Personal projects to share with the hiring team. * Up to £700pd Umbrella depending on experience. * London-based hybrid working. * Initial 6-month contract with extensions. If you're interested in this role, click 'apply now' to forward an up-to-date copy of your CV, or cal
I am currently working with a London-based Financial Services client who are actively seeking 3 software engineers to work on the development of a cutting-edge platform with a range of new technologies including AI. * Strong software development experience with modern programming languages such as Rust, Golang, Haskell etc. * Good experience with React, Next.JS, Typescript, Javascript. * Experience working in a fintech/start-up environment on SaaS, B2B or B2C products - nice to have. * Active interest or experience in artificial intelligence and/or cybersecurity. * Personal projects to share with the hiring team. * Up to £700pd Umbrella depending on experience. * London-based hybrid working. * Initial 6-month contract with extensions. If you're interested in this role, click 'apply now' to forward an up-to-date copy of your CV, or cal
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Now, due to continued growth, they are searching for an Android Developer to join their highly skilled engineering team and play a key role in shaping the next generation of their native Android application. Role: Android Developer, Permanent, Remote (Based Anywhere in Ireland) As an Android Developer, you will lead the development, maintenance, and optimisation of a modern Kotlin-based mobile app used across multiple industries and device types. This is a chance for an Android Developer who loves clean code, problem-solving, and mobile innovation to join a home-grown Northern Ireland success story with a strong culture of flexibility, autonomy, and technical excellence. You'll collaborate closely with talented developers, product specialists, and QA engineers to impl
Now, due to continued growth, they are searching for an Android Developer to join their highly skilled engineering team and play a key role in shaping the next generation of their native Android application. Role: Android Developer, Permanent, Remote (Based Anywhere in Ireland) As an Android Developer, you will lead the development, maintenance, and optimisation of a modern Kotlin-based mobile app used across multiple industries and device types. This is a chance for an Android Developer who loves clean code, problem-solving, and mobile innovation to join a home-grown Northern Ireland success story with a strong culture of flexibility, autonomy, and technical excellence. You'll collaborate closely with talented developers, product specialists, and QA engineers to impl
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Senior/Lead Full Stack Developer (React / Python) AI Start up!
Senior/Lead Full Stack Developer (React / Python) AI Start up!
Robert Half
City of London (EC1)
Negotiable
Senior/Lead Hands on Full Stack Developer - React / Python Looking for a Full Stack developer who loves working across the stack - React on the front end, Python on the back end. * Strong React & Python skills £110,000+ Equity | Full-Time | Start-up * Build responsive UIs in React * Develop APIs & services in Python (either Django/Flask/FastAPI) * Help shape our tech stack London | Hybrid (3days in the office and 2 days from home) We're a high-growth start-up building a leading healthcare! * Own features end-to-end * API & database experience * A proa
Senior/Lead Hands on Full Stack Developer - React / Python Looking for a Full Stack developer who loves working across the stack - React on the front end, Python on the back end. * Strong React & Python skills £110,000+ Equity | Full-Time | Start-up * Build responsive UIs in React * Develop APIs & services in Python (either Django/Flask/FastAPI) * Help shape our tech stack London | Hybrid (3days in the office and 2 days from home) We're a high-growth start-up building a leading healthcare! * Own features end-to-end * API & database experience * A proa
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Founding Full Stack Engineer (Python/TypeScript) – London - £180K
Founding Full Stack Engineer (Python/TypeScript) – London - £180K
Halian Technology Limited
London
Up to £185,000 per annum High founding member equity and Shares
Python + TypeScript/Node.js (in equal measure) You ship fast, iterate quickly, and take full responsibility for your domain. Flexibility: Comfortable with a constantly evolving stack and shifting priorities. Experience: 35 years as a software engineer in high-growth startups. Halian is currently working with a stealth-stage AI startup is hiring its first technical team member. If you want to build core AI systems from the ground up and move faster than a typical tech organisation ever allows, this might be for you. What youll be doing - Architect core infrastructure and data pipelines - Build integrations with external APIs and providers - Develop internal tooling and contribute directly to product roadmap decisions - Work across backend, frontend, data, and cloud systems - Solve high-impact problems
Python + TypeScript/Node.js (in equal measure) You ship fast, iterate quickly, and take full responsibility for your domain. Flexibility: Comfortable with a constantly evolving stack and shifting priorities. Experience: 35 years as a software engineer in high-growth startups. Halian is currently working with a stealth-stage AI startup is hiring its first technical team member. If you want to build core AI systems from the ground up and move faster than a typical tech organisation ever allows, this might be for you. What youll be doing - Architect core infrastructure and data pipelines - Build integrations with external APIs and providers - Develop internal tooling and contribute directly to product roadmap decisions - Work across backend, frontend, data, and cloud systems - Solve high-impact problems
Meta is seeking talented principal engineers to join our teams in building cutting-edge products that connect billions of people around the world. If you're interested in leading a world-class team of engineers and researchers to work on exciting projects that have significant impact, we encourage you to apply. * Experience mentoring/influencing experienced engineers across organizations * Experience building large-scale infrastructure applications or similar experience - As a member of our team, you will manage complex technical problems, build new features, and improve existing products across various platforms, including mobile devices and web applications. Our teams are constantly pushing the boundaries of user experience, and we're looking for passionate individuals who can help us advance the wa
Meta is seeking talented principal engineers to join our teams in building cutting-edge products that connect billions of people around the world. If you're interested in leading a world-class team of engineers and researchers to work on exciting projects that have significant impact, we encourage you to apply. * Experience mentoring/influencing experienced engineers across organizations * Experience building large-scale infrastructure applications or similar experience - As a member of our team, you will manage complex technical problems, build new features, and improve existing products across various platforms, including mobile devices and web applications. Our teams are constantly pushing the boundaries of user experience, and we're looking for passionate individuals who can help us advance the wa
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We're looking for a full-stack Senior Software Engineer to work in our Customer Development team on our ground-breaking Frontier platform. We're actively seeking a senior full-stack engineer to deliver our cutting-edge product, Frontier, to new clients. As a Senior Full Stack Engineer in the Customer Development team, youll lead the technical delivery of customer-facing projects, working as part of small, cross-functional teams. With more than a decade of experience, we provide over 350 global customers with software, bespoke AI consultancy, and Fellows from our award winning Fellowship programme. * Serve as a strong technical contributor within a cross-functional Delivery Squad, working alongside Engineers, Product Designers, Data Scientists, and a D
We're looking for a full-stack Senior Software Engineer to work in our Customer Development team on our ground-breaking Frontier platform. We're actively seeking a senior full-stack engineer to deliver our cutting-edge product, Frontier, to new clients. As a Senior Full Stack Engineer in the Customer Development team, youll lead the technical delivery of customer-facing projects, working as part of small, cross-functional teams. With more than a decade of experience, we provide over 350 global customers with software, bespoke AI consultancy, and Fellows from our award winning Fellowship programme. * Serve as a strong technical contributor within a cross-functional Delivery Squad, working alongside Engineers, Product Designers, Data Scientists, and a D