Performance Engineering Jobs in the UK

176 to 200 of 252 Performance Engineering Jobs in the UK

Machine Learning Performance Engineer- World-Leading Prop Trading Fund | London, UK

London, England, United Kingdom
Oxford Knight
Machine Learning Performance Engineer - World-Leading Prop Trading Fund Summary: An exciting opportunity to work at a tech-centric proprietary trading fund that trades a wide range of financial products, with offices across the globe. We are seeking an experienced engineer with expertise in low-level systems programming and optimization to join our growing ML team. Machine learning is … central to our operations. Your focus will be to optimize the performance of our models, including training and inference. This involves efficient large-scale training, low-latency real-time inference, and high-throughput research inference. The role requires a holistic approach, including improvements in CUDA, storage systems, networking, and host- and GPU-level considerations. The ideal candidate is a … strong desire to learn new skills. Requirements: Understanding of modern ML techniques and tools, with a focus on performance. Systems knowledge and experience to debug end-to-end training performance issues. Low-level GPU knowledge, including CUDA or similar GPU programming (PTX, SASS, warps, cooperative groups, Tensor Cores, memory hierarchy). Experience with debugging and optimization tools such as More ❯
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Senior / Staff Software Engineer (AI / Compiler)

Portsmouth, England, United Kingdom
JR United Kingdom
now scaling our operations in London. Our work environment rewards innovation, speed, and bold thinking. The role We’re hiring Senior and Staff Software Engineers to build the high-performance computing infrastructure that powers our OTPUs. This role involves rethinking how AI workloads are executed at speed and scale, focusing on designing and implementing software systems for distributed, low … latency inference across clusters. Responsibilities Design and build high-performance systems for running AI/ML workloads across distributed compute clusters Optimize for ultra-low latency and real-time inference at scale—profiling, tuning, and rewriting critical systems as needed Identify and resolve performance bottlenecks across the stack, from model execution and scheduling to hardware-level constraints Collaborate … LLVM or MLIR Work with hardware teams to ensure the software stack fully leverages the capabilities of our OTPU architecture Extend ML frameworks (e.g., PyTorch, ONNX, OpenXLA) to support performance-critical inference paths Lead design reviews, mentor engineers, and promote best practices in HPC and performance engineering Stay updated with new developments in AI infrastructure, compute systems More ❯
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Senior / Staff Software Engineer (AI / Compiler)

Hounslow, England, United Kingdom
JR United Kingdom
now scaling our operations in London. Our work environment rewards innovation, speed, and bold thinking. The role We’re hiring Senior and Staff Software Engineers to build the high-performance computing infrastructure that powers our Optical Tensor Processing Units (OTPUs). This isn’t just about scaling models—it’s about rethinking how AI workloads are executed at speed … and execution to data movement and scheduling. Whether it’s through compiler techniques, systems-level tuning, or custom runtime design, you’ll play a critical role in shaping the performance layer of our AI platform. This is a role for engineers who think in microseconds, not just model accuracy. If you’ve worked in HFT, large-scale scientific compute … or AI infrastructure at serious scale, we’d love to talk. Responsibilities Design and build high-performance systems for running AI/ML workloads across distributed compute clusters Optimise for ultra-low latency and real-time inference at scale—profiling, tuning, and rewriting critical systems as needed Identify and resolve performance bottlenecks across the stack, from model execution More ❯
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Senior / Staff Software Engineer (AI / Compiler)

London, England, United Kingdom
Flux Computing
now scaling our operations in London. Our work environment rewards innovation, speed, and bold thinking. The role We’re hiring Senior and Staff Software Engineers to build the high-performance computing infrastructure that powers our Optical Tensor Processing Units (OTPUs). This isn’t just about scaling models—it’s about rethinking how AI workloads are executed at speed … and execution to data movement and scheduling. Whether it’s through compiler techniques, systems-level tuning, or custom runtime design, you’ll play a critical role in shaping the performance layer of our AI platform. This is a role for engineers who think in microseconds, not just model accuracy. If you’ve worked in HFT, large-scale scientific compute … or AI infrastructure at serious scale, we’d love to talk. Responsibilities Design and build high-performance systems for running AI/ML workloads across distributed compute clusters Optimise for ultra-low latency and real-time inference at scale—profiling, tuning, and rewriting critical systems as needed Identify and resolve performance bottlenecks across the stack, from model execution More ❯
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Senior / Staff Software Engineer

London, England, United Kingdom
Flux Computing
now scaling our operations in London. Our work environment rewards innovation, speed, and bold thinking. The role We’re hiring Senior and Staff Software Engineers to build the high-performance computing infrastructure that powers our Optical Tensor Processing Units (OTPUs). This isn’t just about scaling models—it’s about rethinking how AI workloads are executed at speed … and execution to data movement and scheduling. Whether it’s through compiler techniques, systems-level tuning, or custom runtime design, you’ll play a critical role in shaping the performance layer of our AI platform. This is a role for engineers who think in microseconds, not just model accuracy. If you’ve worked in HFT, large-scale scientific compute … or AI infrastructure at serious scale, we’d love to talk. Responsibilities Design and build high-performance systems for running AI/ML workloads across distributed compute clusters Optimise for ultra-low latency and real-time inference at scale—profiling, tuning, and rewriting critical systems as needed Identify and resolve performance bottlenecks across the stack, from model execution More ❯
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Senior / Staff Software Engineer

South East London, England, United Kingdom
Flux Computing
now scaling our operations in London. Our work environment rewards innovation, speed, and bold thinking. The role We’re hiring Senior and Staff Software Engineers to build the high-performance computing infrastructure that powers our Optical Tensor Processing Units (OTPUs). This isn’t just about scaling models—it’s about rethinking how AI workloads are executed at speed … and execution to data movement and scheduling. Whether it’s through compiler techniques, systems-level tuning, or custom runtime design, you’ll play a critical role in shaping the performance layer of our AI platform. This is a role for engineers who think in microseconds, not just model accuracy. If you’ve worked in HFT, large-scale scientific compute … or AI infrastructure at serious scale, we’d love to talk. Responsibilities Design and build high-performance systems for running AI/ML workloads across distributed compute clusters Optimise for ultra-low latency and real-time inference at scale—profiling, tuning, and rewriting critical systems as needed Identify and resolve performance bottlenecks across the stack, from model execution More ❯
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Automation Engineer

Wales, United Kingdom
iO Associates
CNCs, industrial robots, and cobots Define requirements for new machinery and develop innovative automated assembly processes Manage automation projects from concept through to implementation Provide technical support on machine performance, cutter/drill/router usage, and process improvement Skills & Experience Required: Degree in Engineering or equivalent experience Strong background in automation and/or robotics Understanding of … stakeholder management skills This is a fantastic opportunity to play a key role in driving innovation and efficiency in aerospace manufacturing. Apply now to be part of a high-performance engineering team. More ❯
Employment Type: Permanent
Salary: GBP Annual
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Senior / Staff Software Engineer (AI / Compiler)

Southampton, England, United Kingdom
JR United Kingdom
now scaling our operations in London. Our work environment rewards innovation, speed, and bold thinking. The role We’re hiring Senior and Staff Software Engineers to build the high-performance computing infrastructure that powers our Optical Tensor Processing Units (OTPUs). This isn’t just about scaling models—it’s about rethinking how AI workloads are executed at speed … and execution to data movement and scheduling. Whether it’s through compiler techniques, systems-level tuning, or custom runtime design, you’ll play a critical role in shaping the performance layer of our AI platform. This is a role for engineers who think in microseconds, not just model accuracy. If you’ve worked in HFT, large-scale scientific compute … or AI infrastructure at serious scale, we’d love to talk. Responsibilities Design and build high-performance systems for running AI/ML workloads across distributed compute clusters Optimise for ultra-low latency and real-time inference at scale—profiling, tuning, and rewriting critical systems as needed Identify and resolve performance bottlenecks across the stack, from model execution More ❯
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Automation Engineer

Chester, Cheshire, North West, United Kingdom
IO Associates
CNCs, industrial robots, and cobots Define requirements for new machinery and develop innovative automated assembly processes Manage automation projects from concept through to implementation Provide technical support on machine performance, cutter/drill/router usage, and process improvement Skills & Experience Required: Degree in Engineering or equivalent experience Strong background in automation and/or robotics Understanding of … stakeholder management skills This is a fantastic opportunity to play a key role in driving innovation and efficiency in aerospace manufacturing. Apply now to be part of a high-performance engineering team. More ❯
Employment Type: Contract
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Senior / Staff Software Engineer (AI / Compiler)

Watford, England, United Kingdom
JR United Kingdom
now scaling our operations in London. Our work environment rewards innovation, speed, and bold thinking. The role We’re hiring Senior and Staff Software Engineers to build the high-performance computing infrastructure that powers our Optical Tensor Processing Units (OTPUs). This isn’t just about scaling models—it’s about rethinking how AI workloads are executed at speed … and execution to data movement and scheduling. Whether it’s through compiler techniques, systems-level tuning, or custom runtime design, you’ll play a critical role in shaping the performance layer of our AI platform. This is a role for engineers who think in microseconds, not just model accuracy. If you’ve worked in HFT, large-scale scientific compute … or AI infrastructure at serious scale, we’d love to talk. Responsibilities Design and build high-performance systems for running AI/ML workloads across distributed compute clusters Optimise for ultra-low latency and real-time inference at scale—profiling, tuning, and rewriting critical systems as needed Identify and resolve performance bottlenecks across the stack, from model execution More ❯
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Senior / Staff Software Engineer (AI / Compiler)

London, England, United Kingdom
JR United Kingdom
now scaling our operations in London. Our work environment rewards innovation, speed, and bold thinking. The role We’re hiring Senior and Staff Software Engineers to build the high-performance computing infrastructure that powers our Optical Tensor Processing Units (OTPUs). This isn’t just about scaling models—it’s about rethinking how AI workloads are executed at speed … and execution to data movement and scheduling. Whether it’s through compiler techniques, systems-level tuning, or custom runtime design, you’ll play a critical role in shaping the performance layer of our AI platform. This is a role for engineers who think in microseconds, not just model accuracy. If you’ve worked in HFT, large-scale scientific compute … or AI infrastructure at serious scale, we’d love to talk. Responsibilities Design and build high-performance systems for running AI/ML workloads across distributed compute clusters Optimise for ultra-low latency and real-time inference at scale—profiling, tuning, and rewriting critical systems as needed Identify and resolve performance bottlenecks across the stack, from model execution More ❯
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Chief Technology Officer

London Area, United Kingdom
Wellesley
the technical vision and execution of this critical infrastructure. This role offers a rare opportunity to build from the ground up — in a regulated environment — while applying cutting-edge engineering principles to meet the demands of some of the world’s most sophisticated trading participants. Key Responsibilities Build and scale a high-performance engineering team across infrastructure … compromising latency or throughput. Drive integration with third-party clearing services and custodians, enabling real-time netting, margining, and settlement. Ensure compliance with regulatory standards while retaining HFT-ready performance (e.g., MiFID II, RTS 6/25). Champion secure-by-design principles across all layers — application, infrastructure, and data. Serve as a key technical spokesperson to investors, regulators … and strategic partners. Ideal Candidate Profile 15+ years of engineering leadership experience, including CTO/Head of Engineering roles in trading, exchange, or HFT environments. Deep technical understanding of trading system designs — from C++ matching engines to kernel bypass networking, PTP, NUMA, DPDK, etc. Proven experience architecting and scaling trading systems capable of handling millions of messages per More ❯
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Chief Technology Officer

City of London, London, United Kingdom
Wellesley
the technical vision and execution of this critical infrastructure. This role offers a rare opportunity to build from the ground up — in a regulated environment — while applying cutting-edge engineering principles to meet the demands of some of the world’s most sophisticated trading participants. Key Responsibilities Build and scale a high-performance engineering team across infrastructure … compromising latency or throughput. Drive integration with third-party clearing services and custodians, enabling real-time netting, margining, and settlement. Ensure compliance with regulatory standards while retaining HFT-ready performance (e.g., MiFID II, RTS 6/25). Champion secure-by-design principles across all layers — application, infrastructure, and data. Serve as a key technical spokesperson to investors, regulators … and strategic partners. Ideal Candidate Profile 15+ years of engineering leadership experience, including CTO/Head of Engineering roles in trading, exchange, or HFT environments. Deep technical understanding of trading system designs — from C++ matching engines to kernel bypass networking, PTP, NUMA, DPDK, etc. Proven experience architecting and scaling trading systems capable of handling millions of messages per More ❯
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Chief Technology Officer

South East London, England, United Kingdom
Wellesley
the technical vision and execution of this critical infrastructure. This role offers a rare opportunity to build from the ground up — in a regulated environment — while applying cutting-edge engineering principles to meet the demands of some of the world’s most sophisticated trading participants. Key Responsibilities Build and scale a high-performance engineering team across infrastructure … compromising latency or throughput. Drive integration with third-party clearing services and custodians, enabling real-time netting, margining, and settlement. Ensure compliance with regulatory standards while retaining HFT-ready performance (e.g., MiFID II, RTS 6/25). Champion secure-by-design principles across all layers — application, infrastructure, and data. Serve as a key technical spokesperson to investors, regulators … and strategic partners. Ideal Candidate Profile 15+ years of engineering leadership experience, including CTO/Head of Engineering roles in trading, exchange, or HFT environments. Deep technical understanding of trading system designs — from C++ matching engines to kernel bypass networking, PTP, NUMA, DPDK, etc. Proven experience architecting and scaling trading systems capable of handling millions of messages per More ❯
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Lead Golang Software Engineer, Commercial Systems

London, England, United Kingdom
Hybrid / WFH Options
Canonical
source software and operating systems for global enterprise and technology markets. Our platform, Ubuntu, is very widely used in breakthrough enterprise initiatives such as public cloud, data science, AI, engineering innovation and IoT. Our customers include the world's leading public cloud and silicon providers, and industry leaders in many sectors. The company is a pioneer of global distributed … on strategy and execution. The company is founder led, profitable and growing. We are hiring a Lead Golang Software Engineer at any seniority level, who strives for the highest engineering quality, seeks improvements, continuously develops their skills, and applies them at work. This is an exciting opportunity to work with many popular software systems, integrations technologies, and exciting open … source solutions. The Commercial Systems unit is conceived as seven engineering teams that closely collaborate with other engineering and business teams at Canonical. Services designed, developed, and operated by the Commercial Systems unit are at the heart of Canonical business and Golang plays an integral role in it. We are looking for software engineers for these teams: The More ❯
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Head of Development

Bournemouth, England, United Kingdom
JR United Kingdom
to login/join with: A rapidly growing B2B SaaS company at the forefront of AI innovation is seeking a Head of Development to lead and scale its global engineering function. This is a high-impact leadership role for someone who thrives in fast-paced environments, knows how to build high-performing teams, and is passionate about using AI … quality delivery of features across multiple product lines Oversee cloud infrastructure (AWS/Google) and third-party SaaS integrations Collaborate cross-functionally with Product, Data, and Design to align engineering priorities with business goals Mentor senior engineers and foster a high-performance team culture Who You Are Proven experience leading development teams in a B2B SaaS environment (ideally … or platform strategy Bonus: Experience with PE-backed companies or tech due diligence environments What Success Looks Like (12 Months) Roadmaps delivered on time and on budget A high-performance engineering team, well-aligned with business priorities AI capabilities integrated seamlessly into the product Platform scalability and reliability improved to support growth What’s On Offer ?️ Greenfield Projects More ❯
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Head of Development

Plymouth, England, United Kingdom
JR United Kingdom
to login/join with: A rapidly growing B2B SaaS company at the forefront of AI innovation is seeking a Head of Development to lead and scale its global engineering function. This is a high-impact leadership role for someone who thrives in fast-paced environments, knows how to build high-performing teams, and is passionate about using AI … quality delivery of features across multiple product lines Oversee cloud infrastructure (AWS/Google) and third-party SaaS integrations Collaborate cross-functionally with Product, Data, and Design to align engineering priorities with business goals Mentor senior engineers and foster a high-performance team culture Who You Are Proven experience leading development teams in a B2B SaaS environment (ideally … or platform strategy Bonus: Experience with PE-backed companies or tech due diligence environments What Success Looks Like (12 Months) Roadmaps delivered on time and on budget A high-performance engineering team, well-aligned with business priorities AI capabilities integrated seamlessly into the product Platform scalability and reliability improved to support growth What’s On Offer ?️ Greenfield Projects More ❯
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Head of Development

Coventry, England, United Kingdom
JR United Kingdom
to login/join with: A rapidly growing B2B SaaS company at the forefront of AI innovation is seeking a Head of Development to lead and scale its global engineering function. This is a high-impact leadership role for someone who thrives in fast-paced environments, knows how to build high-performing teams, and is passionate about using AI … quality delivery of features across multiple product lines Oversee cloud infrastructure (AWS/Google) and third-party SaaS integrations Collaborate cross-functionally with Product, Data, and Design to align engineering priorities with business goals Mentor senior engineers and foster a high-performance team culture Who You Are Proven experience leading development teams in a B2B SaaS environment (ideally … or platform strategy Bonus: Experience with PE-backed companies or tech due diligence environments What Success Looks Like (12 Months) Roadmaps delivered on time and on budget A high-performance engineering team, well-aligned with business priorities AI capabilities integrated seamlessly into the product Platform scalability and reliability improved to support growth What’s On Offer ?️ Greenfield Projects More ❯
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Head of Development

Peterborough, England, United Kingdom
JR United Kingdom
to login/join with: A rapidly growing B2B SaaS company at the forefront of AI innovation is seeking a Head of Development to lead and scale its global engineering function. This is a high-impact leadership role for someone who thrives in fast-paced environments, knows how to build high-performing teams, and is passionate about using AI … quality delivery of features across multiple product lines Oversee cloud infrastructure (AWS/Google) and third-party SaaS integrations Collaborate cross-functionally with Product, Data, and Design to align engineering priorities with business goals Mentor senior engineers and foster a high-performance team culture Who You Are Proven experience leading development teams in a B2B SaaS environment (ideally … or platform strategy Bonus: Experience with PE-backed companies or tech due diligence environments What Success Looks Like (12 Months) Roadmaps delivered on time and on budget A high-performance engineering team, well-aligned with business priorities AI capabilities integrated seamlessly into the product Platform scalability and reliability improved to support growth What’s On Offer ?️ Greenfield Projects More ❯
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Head of Development

Edinburgh, Scotland, United Kingdom
JR United Kingdom
to login/join with: A rapidly growing B2B SaaS company at the forefront of AI innovation is seeking a Head of Development to lead and scale its global engineering function. This is a high-impact leadership role for someone who thrives in fast-paced environments, knows how to build high-performing teams, and is passionate about using AI … quality delivery of features across multiple product lines Oversee cloud infrastructure (AWS/Google) and third-party SaaS integrations Collaborate cross-functionally with Product, Data, and Design to align engineering priorities with business goals Mentor senior engineers and foster a high-performance team culture Who You Are Proven experience leading development teams in a B2B SaaS environment (ideally … or platform strategy Bonus: Experience with PE-backed companies or tech due diligence environments What Success Looks Like (12 Months) Roadmaps delivered on time and on budget A high-performance engineering team, well-aligned with business priorities AI capabilities integrated seamlessly into the product Platform scalability and reliability improved to support growth What’s On Offer ?️ Greenfield Projects More ❯
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Head of Development

Cardiff, Wales, United Kingdom
JR United Kingdom
to login/join with: A rapidly growing B2B SaaS company at the forefront of AI innovation is seeking a Head of Development to lead and scale its global engineering function. This is a high-impact leadership role for someone who thrives in fast-paced environments, knows how to build high-performing teams, and is passionate about using AI … quality delivery of features across multiple product lines Oversee cloud infrastructure (AWS/Google) and third-party SaaS integrations Collaborate cross-functionally with Product, Data, and Design to align engineering priorities with business goals Mentor senior engineers and foster a high-performance team culture Who You Are Proven experience leading development teams in a B2B SaaS environment (ideally … or platform strategy Bonus: Experience with PE-backed companies or tech due diligence environments What Success Looks Like (12 Months) Roadmaps delivered on time and on budget A high-performance engineering team, well-aligned with business priorities AI capabilities integrated seamlessly into the product Platform scalability and reliability improved to support growth What’s On Offer ?️ Greenfield Projects More ❯
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React Native Engineer

Wolverhampton, England, United Kingdom
Hybrid / WFH Options
JR United Kingdom
looking for a skilled React Native Engineer to help build and scale mobile applications that serve thousands of users daily. This is an opportunity to contribute to a high-performance engineering team focused on creating seamless, reliable, and scalable solutions that make a tangible difference. What You'll Be Doing: Developing and maintaining cross-platform mobile apps using … React Native Collaborating with product, design, and backend teams to build intuitive features and improve performance Writing clean, well-documented, and testable code Participating in code reviews, architecture discussions, and planning sessions Contributing to a culture of continuous improvement and innovation What We’re Looking For: 4+ years of professional experience working with React Native Experience integrating RESTful APIs … and autonomy A mission-driven team with strong product-market fit Clear pathways for growth and impact If you're ready to take the next step in your mobile engineering career and work on products that matter, I’d love to hear from you. If you have any further questions on the role, please feel free to reach out More ❯
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React Native Engineer

Dartford, England, United Kingdom
Hybrid / WFH Options
JR United Kingdom
looking for a skilled React Native Engineer to help build and scale mobile applications that serve thousands of users daily. This is an opportunity to contribute to a high-performance engineering team focused on creating seamless, reliable, and scalable solutions that make a tangible difference. What You'll Be Doing: Developing and maintaining cross-platform mobile apps using … React Native Collaborating with product, design, and backend teams to build intuitive features and improve performance Writing clean, well-documented, and testable code Participating in code reviews, architecture discussions, and planning sessions Contributing to a culture of continuous improvement and innovation What We’re Looking For: 4+ years of professional experience working with React Native Experience integrating RESTful APIs … and autonomy A mission-driven team with strong product-market fit Clear pathways for growth and impact If you're ready to take the next step in your mobile engineering career and work on products that matter, I’d love to hear from you. If you have any further questions on the role, please feel free to reach out More ❯
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React Native Engineer

Brighton, England, United Kingdom
Hybrid / WFH Options
JR United Kingdom
looking for a skilled React Native Engineer to help build and scale mobile applications that serve thousands of users daily. This is an opportunity to contribute to a high-performance engineering team focused on creating seamless, reliable, and scalable solutions that make a tangible difference. What You'll Be Doing: Developing and maintaining cross-platform mobile apps using … React Native Collaborating with product, design, and backend teams to build intuitive features and improve performance Writing clean, well-documented, and testable code Participating in code reviews, architecture discussions, and planning sessions Contributing to a culture of continuous improvement and innovation What We’re Looking For: 4+ years of professional experience working with React Native Experience integrating RESTful APIs … and autonomy A mission-driven team with strong product-market fit Clear pathways for growth and impact If you're ready to take the next step in your mobile engineering career and work on products that matter, I’d love to hear from you. If you have any further questions on the role, please feel free to reach out More ❯
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Head of Development

Luton, England, United Kingdom
JR United Kingdom
Kingdom Type: Full-Time | Permanent | A rapidly growing B2B SaaS company at the forefront of AI innovation is seeking a Head of Development to lead and scale its global engineering function. This is a high-impact leadership role for someone who thrives in fast-paced environments, knows how to build high-performing teams, and is passionate about using AI … quality delivery of features across multiple product lines Oversee cloud infrastructure (AWS/Google) and third-party SaaS integrations Collaborate cross-functionally with Product, Data, and Design to align engineering priorities with business goals Mentor senior engineers and foster a high-performance team culture Who You Are Proven experience leading development teams in a B2B SaaS environment (ideally … or platform strategy Bonus: Experience with PE-backed companies or tech due diligence environments What Success Looks Like (12 Months) Roadmaps delivered on time and on budget A high-performance engineering team, well-aligned with business priorities AI capabilities integrated seamlessly into the product Platform scalability and reliability improved to support growth What’s On Offer ?️ Greenfield Projects More ❯
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Performance Engineering
10th Percentile
£38,900
25th Percentile
£46,486
Median
£85,000
75th Percentile
£146,300