london, south east england, united kingdom Hybrid / WFH Options
Hunter Bond
Job Title: Senior Software Engineer (DistributedSystems & ML Infrastructure) Client: Elite Tech Firm Salary: Up to £220k Base + Industry-Leading Bonus Location: London (Hybrid) Sells: Work on next-gen distributedsystems and ML infrastructure, take ownership of multiple greenfield builds, zero bureaucracy, a genuinely collaborative culture, stunning offices, and dedicated time for personal projects every … Friday! An Elite FinTech firm is expanding its world-class engineering team and looking for exceptional Software Engineers who thrive on solving complex distributed problems at scale. You’ll be joining an elite group of engineers (alumni of NUS/McGill/MIT/Oxford) who have previously built systems at Meta, Twitter, Citadel, Ubisoft, and Jane Street … This environment offers unlimited tech resources , total engineering autonomy, and a culture that genuinely celebrates innovation and curiosity. Role Design and build high-performance, distributedsystems for large-scale ML infrastructure Drive best practices in software architecture, testing, and scalability Lead and collaborate on multiple greenfield initiatives focused on performance, reliability, and scale Skills Open to all experience More ❯
london (city of london), south east england, united kingdom Hybrid / WFH Options
Hunter Bond
Job Title: Senior Software Engineer (DistributedSystems & ML Infrastructure) Client: Elite Tech Firm Salary: Up to £220k Base + Industry-Leading Bonus Location: London (Hybrid) Sells: Work on next-gen distributedsystems and ML infrastructure, take ownership of multiple greenfield builds, zero bureaucracy, a genuinely collaborative culture, stunning offices, and dedicated time for personal projects every … Friday! An Elite FinTech firm is expanding its world-class engineering team and looking for exceptional Software Engineers who thrive on solving complex distributed problems at scale. You’ll be joining an elite group of engineers (alumni of NUS/McGill/MIT/Oxford) who have previously built systems at Meta, Twitter, Citadel, Ubisoft, and Jane Street … This environment offers unlimited tech resources , total engineering autonomy, and a culture that genuinely celebrates innovation and curiosity. Role Design and build high-performance, distributedsystems for large-scale ML infrastructure Drive best practices in software architecture, testing, and scalability Lead and collaborate on multiple greenfield initiatives focused on performance, reliability, and scale Skills Open to all experience More ❯
slough, south east england, united kingdom Hybrid / WFH Options
Hunter Bond
Job Title: Senior Software Engineer (DistributedSystems & ML Infrastructure) Client: Elite Tech Firm Salary: Up to £220k Base + Industry-Leading Bonus Location: London (Hybrid) Sells: Work on next-gen distributedsystems and ML infrastructure, take ownership of multiple greenfield builds, zero bureaucracy, a genuinely collaborative culture, stunning offices, and dedicated time for personal projects every … Friday! An Elite FinTech firm is expanding its world-class engineering team and looking for exceptional Software Engineers who thrive on solving complex distributed problems at scale. You’ll be joining an elite group of engineers (alumni of NUS/McGill/MIT/Oxford) who have previously built systems at Meta, Twitter, Citadel, Ubisoft, and Jane Street … This environment offers unlimited tech resources , total engineering autonomy, and a culture that genuinely celebrates innovation and curiosity. Role Design and build high-performance, distributedsystems for large-scale ML infrastructure Drive best practices in software architecture, testing, and scalability Lead and collaborate on multiple greenfield initiatives focused on performance, reliability, and scale Skills Open to all experience More ❯
Manchester, Lancashire, England, United Kingdom Hybrid / WFH Options
Partnerscale
Engineering Team Lead – DistributedSystems/Data Platforms Location: Manchester (Hybrid) Salary: Up to £75,000 + bonus (15–20%) + travel allowance & benefits Permanent, Full-time We are recruiting for an Engineering Team Lead to join a growing technology business and lead a team working on large-scale distributed data platforms. This is a hands-on … leadership role where you’ll oversee the design, development and delivery of resilient, high-availability systems that handle significant data workloads. You’ll work across a range of technologies including Riak, Cassandra, Couchbase, DynamoDB, Aerospike, Redis and MongoDB. Direct experience with NoSQL datastores is a bonus, but not expected. We’re looking for someone with a strong software engineering … teams through data platform or backend engineering projects. You’ll be responsible for driving best practices, mentoring developers and ensuring smooth delivery across multiple projects. A deep understanding of distributedsystems, data storage and scalable architectures will be key. Key experience required: Proven experience leading a software or data engineering team Strong understanding of distributedsystemsMore ❯
belfast, antrim, united kingdom Hybrid / WFH Options
Magnite
others, and developing software that shapes the future of audience targeting, we'd love to meet you. In this Backend Engineer role, you'll help design, build and optimise systems that process billions of events every day, powering Magnite's Audience Platform. At Magnite, we cultivate an environment of continuous growth and collaboration. Our work impacts what millions of … All of this happens in milliseconds, billions of times a day, across the internet. Pretty nifty. We are looking for a senior backend engineer who loves tackling high volume, distributedsystems and tuning ultra-low-latency services. If you thrive in a collaborative, high-ownership environment and want to shape the future of audience targeting at scale, we … small, experienced team that values clean design, strong fundamentals, and ownership of what we build. You'll work alongside engineers who love to experiment with new tools and deliver systems that run reliably at massive scale. We: Stream, ingest and asynchronously process 2 Billion+ events every day Run sub-20 ms, high-QPS microservices Operationalize Data Science models - from More ❯
london, south east england, united kingdom Hybrid / WFH Options
Quant Capital
Location: London (Hybrid – 4:1) Our client, a leading global trading firm, is seeking a Software Engineer to join its Finance Technology team. This group builds and maintains the systems that power financial control, treasury, and tax functions across the business. The role offers exposure to distributedsystems, data engineering, and high-throughput platforms, with the chance … to work on projects ranging from payments automation and expense management to liquidity modelling and regulatory reporting. Key Responsibilities Design, build, and maintain distributed microservices supporting financial operations Develop high-throughput pipelines for ingesting and enriching large datasets Implement automation for payments, purchase order capture, and expense validation Contribute to modelling and calculation frameworks for liquidity and exposure Deliver … and support What We’re Looking For 3–6 years of professional software engineering experience Strong academic grounding in algorithms and data structures Experience with concurrent programming and asynchronous systems Familiarity with distributedsystems, microservices-based architectures Commitment to clean, disciplined software engineering practices Proficiency in Go, JavaScript, Java, C++ or other similar statically typed languages Why More ❯
slough, south east england, united kingdom Hybrid / WFH Options
Quant Capital
Location: London (Hybrid – 4:1) Our client, a leading global trading firm, is seeking a Software Engineer to join its Finance Technology team. This group builds and maintains the systems that power financial control, treasury, and tax functions across the business. The role offers exposure to distributedsystems, data engineering, and high-throughput platforms, with the chance … to work on projects ranging from payments automation and expense management to liquidity modelling and regulatory reporting. Key Responsibilities Design, build, and maintain distributed microservices supporting financial operations Develop high-throughput pipelines for ingesting and enriching large datasets Implement automation for payments, purchase order capture, and expense validation Contribute to modelling and calculation frameworks for liquidity and exposure Deliver … and support What We’re Looking For 3–6 years of professional software engineering experience Strong academic grounding in algorithms and data structures Experience with concurrent programming and asynchronous systems Familiarity with distributedsystems, microservices-based architectures Commitment to clean, disciplined software engineering practices Proficiency in Go, JavaScript, Java, C++ or other similar statically typed languages Why More ❯
london (city of london), south east england, united kingdom Hybrid / WFH Options
Quant Capital
Location: London (Hybrid – 4:1) Our client, a leading global trading firm, is seeking a Software Engineer to join its Finance Technology team. This group builds and maintains the systems that power financial control, treasury, and tax functions across the business. The role offers exposure to distributedsystems, data engineering, and high-throughput platforms, with the chance … to work on projects ranging from payments automation and expense management to liquidity modelling and regulatory reporting. Key Responsibilities Design, build, and maintain distributed microservices supporting financial operations Develop high-throughput pipelines for ingesting and enriching large datasets Implement automation for payments, purchase order capture, and expense validation Contribute to modelling and calculation frameworks for liquidity and exposure Deliver … and support What We’re Looking For 3–6 years of professional software engineering experience Strong academic grounding in algorithms and data structures Experience with concurrent programming and asynchronous systems Familiarity with distributedsystems, microservices-based architectures Commitment to clean, disciplined software engineering practices Proficiency in Go, JavaScript, Java, C++ or other similar statically typed languages Why More ❯
london, south east england, united kingdom Hybrid / WFH Options
CipherTek Recruitment
Software Engineer to join a flagship team delivering a next-generation, high-performance derivatives risk platform . This is a mission-critical front-office role working on real-time distributedsystems with exceptional technical standards. You’ll be part of a high-calibre team solving complex engineering challenges and shaping the future of risk technology across capital markets. … languages: C#, Python, Rust Front end: JavaScript/TypeScript/Angular/RX JS Infrastructure: Kubernetes, containers, DevOps, CI/CD Emerging tech: WebAssembly, AI integration, and AI frameworks Systems: Cross-platform, distributed, scalable real-time environments This is a genuine technologist’s role — building critical software that combines engineering precision, scalability, and innovation. What We’re Looking … For Very strong expertise in one of C#, Python or Java , ideally with working knowledge of another. Rust very desirable Proven experience designing and developing complex, distributed, real-time systems . Deep understanding of software architecture, concurrency, performance optimisation , and system reliability . Demonstrable front-end engineering experience using JavaScript, TypeScript, Angular or React Familiarity with containerisation (Kubernetes More ❯
slough, south east england, united kingdom Hybrid / WFH Options
CipherTek Recruitment
Software Engineer to join a flagship team delivering a next-generation, high-performance derivatives risk platform . This is a mission-critical front-office role working on real-time distributedsystems with exceptional technical standards. You’ll be part of a high-calibre team solving complex engineering challenges and shaping the future of risk technology across capital markets. … languages: C#, Python, Rust Front end: JavaScript/TypeScript/Angular/RX JS Infrastructure: Kubernetes, containers, DevOps, CI/CD Emerging tech: WebAssembly, AI integration, and AI frameworks Systems: Cross-platform, distributed, scalable real-time environments This is a genuine technologist’s role — building critical software that combines engineering precision, scalability, and innovation. What We’re Looking … For Very strong expertise in one of C#, Python or Java , ideally with working knowledge of another. Rust very desirable Proven experience designing and developing complex, distributed, real-time systems . Deep understanding of software architecture, concurrency, performance optimisation , and system reliability . Demonstrable front-end engineering experience using JavaScript, TypeScript, Angular or React Familiarity with containerisation (Kubernetes More ❯
london (city of london), south east england, united kingdom Hybrid / WFH Options
CipherTek Recruitment
Software Engineer to join a flagship team delivering a next-generation, high-performance derivatives risk platform . This is a mission-critical front-office role working on real-time distributedsystems with exceptional technical standards. You’ll be part of a high-calibre team solving complex engineering challenges and shaping the future of risk technology across capital markets. … languages: C#, Python, Rust Front end: JavaScript/TypeScript/Angular/RX JS Infrastructure: Kubernetes, containers, DevOps, CI/CD Emerging tech: WebAssembly, AI integration, and AI frameworks Systems: Cross-platform, distributed, scalable real-time environments This is a genuine technologist’s role — building critical software that combines engineering precision, scalability, and innovation. What We’re Looking … For Very strong expertise in one of C#, Python or Java , ideally with working knowledge of another. Rust very desirable Proven experience designing and developing complex, distributed, real-time systems . Deep understanding of software architecture, concurrency, performance optimisation , and system reliability . Demonstrable front-end engineering experience using JavaScript, TypeScript, Angular or React Familiarity with containerisation (Kubernetes More ❯
london, south east england, united kingdom Hybrid / WFH Options
Harnham
elite investors, this small team is already delivering to paying enterprise clients — and scaling fast. 🧩 The Role As a Senior Backend Engineer , you’ll take ownership of core backend systems powering an advanced AI platform that integrates production-ready LLMs and agentic systems. You’ll architect scalable backend services, build RAG pipelines, and integrate AI components into distributedsystems that enable real-world, production-scale AI deployment . 🔧 What You’ll Do Architect and develop backend systems (Python, FastAPI, Flask, NodeJS) Design and implement RAG pipelines (LangChain, Qdrant, embeddings) Build ETL & CI/CD workflows (Airflow, dbt, MLFlow) Integrate AI/LLM components into backend services Ensure reliability, scalability, and maintainability across systems Collaborate … with a small, elite team of engineers and AI researchers 💼 About You 4+ years of backend experience (Python, distributedsystems, async APIs) Proven experience integrating AI or LLM systems (LangChain, vector DBs, etc.) Hands-on with some of Airflow, dbt, MLFlow, ETL, and CI/CD workflows Experience in early-stage startup environments — self-starter mindset Excited More ❯
london (city of london), south east england, united kingdom Hybrid / WFH Options
Harnham
elite investors, this small team is already delivering to paying enterprise clients — and scaling fast. 🧩 The Role As a Senior Backend Engineer , you’ll take ownership of core backend systems powering an advanced AI platform that integrates production-ready LLMs and agentic systems. You’ll architect scalable backend services, build RAG pipelines, and integrate AI components into distributedsystems that enable real-world, production-scale AI deployment . 🔧 What You’ll Do Architect and develop backend systems (Python, FastAPI, Flask, NodeJS) Design and implement RAG pipelines (LangChain, Qdrant, embeddings) Build ETL & CI/CD workflows (Airflow, dbt, MLFlow) Integrate AI/LLM components into backend services Ensure reliability, scalability, and maintainability across systems Collaborate … with a small, elite team of engineers and AI researchers 💼 About You 4+ years of backend experience (Python, distributedsystems, async APIs) Proven experience integrating AI or LLM systems (LangChain, vector DBs, etc.) Hands-on with some of Airflow, dbt, MLFlow, ETL, and CI/CD workflows Experience in early-stage startup environments — self-starter mindset Excited More ❯
slough, south east england, united kingdom Hybrid / WFH Options
Harnham
elite investors, this small team is already delivering to paying enterprise clients — and scaling fast. 🧩 The Role As a Senior Backend Engineer , you’ll take ownership of core backend systems powering an advanced AI platform that integrates production-ready LLMs and agentic systems. You’ll architect scalable backend services, build RAG pipelines, and integrate AI components into distributedsystems that enable real-world, production-scale AI deployment . 🔧 What You’ll Do Architect and develop backend systems (Python, FastAPI, Flask, NodeJS) Design and implement RAG pipelines (LangChain, Qdrant, embeddings) Build ETL & CI/CD workflows (Airflow, dbt, MLFlow) Integrate AI/LLM components into backend services Ensure reliability, scalability, and maintainability across systems Collaborate … with a small, elite team of engineers and AI researchers 💼 About You 4+ years of backend experience (Python, distributedsystems, async APIs) Proven experience integrating AI or LLM systems (LangChain, vector DBs, etc.) Hands-on with some of Airflow, dbt, MLFlow, ETL, and CI/CD workflows Experience in early-stage startup environments — self-starter mindset Excited More ❯
hertfordshire, east anglia, united kingdom Hybrid / WFH Options
Rightmove
to consumers, our partners and all our stakeholders across the UK property market. You'll be at the heart of a greenfield opportunity - building, deploying, and operating machine learning systems that leverage Rightmove's data at large scale. You'll have the opportunity to shape best practices, own and grow the ML Ops discipline, and help us move from … Engineer might involve; Designing, building, and maintaining ML pipelines for training, deployment, monitoring, and retraining at scale. Working with data scientists to take models from development to production-grade systems, ensuring scalability, reproducibility, and robustness. Automating feature engineering and data pipeline processes, ensuring reproducibility and auditability. Implementing monitoring and observability to detect drift, bias, and performance degradation, and setting … production and automating retraining as needed. Sharing knowledge across the data and AI community at Rightmove. We're looking for someone who; Has impactful experience deploying and maintaining ML systems in production, ideally in larger, mature organizations or teams operating at significant scale (e.g., web-scale, distributedsystems, cloud-native environments). Brings expertise in MLOps: CI More ❯
london, south east england, united kingdom Hybrid / WFH Options
Rightmove
to consumers, our partners and all our stakeholders across the UK property market. You'll be at the heart of a greenfield opportunity - building, deploying, and operating machine learning systems that leverage Rightmove's data at large scale. You'll have the opportunity to shape best practices, own and grow the ML Ops discipline, and help us move from … Engineer might involve; Designing, building, and maintaining ML pipelines for training, deployment, monitoring, and retraining at scale. Working with data scientists to take models from development to production-grade systems, ensuring scalability, reproducibility, and robustness. Automating feature engineering and data pipeline processes, ensuring reproducibility and auditability. Implementing monitoring and observability to detect drift, bias, and performance degradation, and setting … production and automating retraining as needed. Sharing knowledge across the data and AI community at Rightmove. We're looking for someone who; Has impactful experience deploying and maintaining ML systems in production, ideally in larger, mature organizations or teams operating at significant scale (e.g., web-scale, distributedsystems, cloud-native environments). Brings expertise in MLOps: CI More ❯
buckinghamshire, south east england, united kingdom Hybrid / WFH Options
Rightmove
to consumers, our partners and all our stakeholders across the UK property market. You'll be at the heart of a greenfield opportunity - building, deploying, and operating machine learning systems that leverage Rightmove's data at large scale. You'll have the opportunity to shape best practices, own and grow the ML Ops discipline, and help us move from … Engineer might involve; Designing, building, and maintaining ML pipelines for training, deployment, monitoring, and retraining at scale. Working with data scientists to take models from development to production-grade systems, ensuring scalability, reproducibility, and robustness. Automating feature engineering and data pipeline processes, ensuring reproducibility and auditability. Implementing monitoring and observability to detect drift, bias, and performance degradation, and setting … production and automating retraining as needed. Sharing knowledge across the data and AI community at Rightmove. We're looking for someone who; Has impactful experience deploying and maintaining ML systems in production, ideally in larger, mature organizations or teams operating at significant scale (e.g., web-scale, distributedsystems, cloud-native environments). Brings expertise in MLOps: CI More ❯
london, south east england, united kingdom Hybrid / WFH Options
Investa
we’re now looking for an extremely strong Senior Software Engineer to strengthen our engineering team as we scale. You will have extensive commercial experience designing, building and maintaining systems used in critical services or those handling significant volumes of activity. You will play a crucial role in building key parts of our platform and apps, ensuring the robustness … per week in our central London office, offering the opportunity to build a new options trading platform. What the role involves Designing, building, and maintaining robust, scalable, and secure systems for critical services Continually improving system performance, reliability, and security Collaborating with cross-functional teams to build a class-leading product Mentoring and guiding engineers, fostering a culture of … Go and others Highly driven by technology with experience across multiple platforms Familiarity with serverless technologies (AWS, Azure or GCP) Strong understanding of system architecture, event-driven design and distributedsystems Product-minded and able to work to solutions that are tightly aligned with the product goals Driven and committed to helping grow the organisation Your background Proven More ❯
slough, south east england, united kingdom Hybrid / WFH Options
Investa
we’re now looking for an extremely strong Senior Software Engineer to strengthen our engineering team as we scale. You will have extensive commercial experience designing, building and maintaining systems used in critical services or those handling significant volumes of activity. You will play a crucial role in building key parts of our platform and apps, ensuring the robustness … per week in our central London office, offering the opportunity to build a new options trading platform. What the role involves Designing, building, and maintaining robust, scalable, and secure systems for critical services Continually improving system performance, reliability, and security Collaborating with cross-functional teams to build a class-leading product Mentoring and guiding engineers, fostering a culture of … Go and others Highly driven by technology with experience across multiple platforms Familiarity with serverless technologies (AWS, Azure or GCP) Strong understanding of system architecture, event-driven design and distributedsystems Product-minded and able to work to solutions that are tightly aligned with the product goals Driven and committed to helping grow the organisation Your background Proven More ❯
London, South East, England, United Kingdom Hybrid / WFH Options
Client Server Ltd
quality, high-impact releases. You'll be working with a modern, cloud native tech stack using Java, Spring Boot, AWS, Kafka and CI/CD to build highly scalable, distributedsystems with 24/7 availability. Location/WFH: There's a hybrid model with two days a week work from home, when you are in the office … range of facilities including roof terrace, restaurant and break out areas. About you: You have strong technical and people leadership skills You have advanced experience of building cloud-native, distributedsystems using Java and Spring Boot You have a strong knowledge of AWS including Amazon EKS You have experience with Kafka and event driven architectures You're collaborative More ❯
slough, south east england, united kingdom Hybrid / WFH Options
Client Server
quality, high-impact releases. You'll be working with a modern, cloud native tech stack using Java, Spring Boot, AWS, Kafka and CI/CD to build highly scalable, distributedsystems with 24/7 availability. Location/WFH: There's a hybrid model with two days a week work from home, when you are in the office … range of facilities including roof terrace, restaurant and break out areas. About you: You have strong technical and people leadership skills You have advanced experience of building cloud-native, distributedsystems using Java and Spring Boot You have a strong knowledge of AWS including Amazon EKS You have experience with Kafka and event driven architectures You're collaborative More ❯
London, South East, England, United Kingdom Hybrid / WFH Options
Client Server Ltd
quality, high-impact releases. You'll be working with a modern, cloud native tech stack using Java, Spring Boot, AWS, Kafka and CI/CD to build highly scalable, distributedsystems with 24/7 availability. Location/WFH: There's a hybrid model with two days a week work from home, when you are in the office … range of facilities including roof terrace, restaurant and break out areas. About you: You have strong technical and people leadership skills You have advanced experience of building cloud-native, distributedsystems using Java and Spring Boot You have a strong knowledge of AWS including Amazon EKS You have experience with Kafka and event driven architectures You're collaborative More ❯
Cardiff, Wales, United Kingdom Hybrid / WFH Options
Sadler Recruitment
through decision-making, problem-solving, and hands-on contribution. The role involves Re-architecting an AWS environment that has grown inconsistently, addressing security, governance, and scalability. Designing and implementing distributedsystems and data pipelines, with a focus on reliability and resilience. Working directly on code and infrastructure as code (around 50% of your time). Running proofs of … or Java (currently use serverless architecture using Node.js and React). Understand SQL at a solid level, with broader experience across NoSQL and data pipeline design. Have experience with distributedsystems or progressive web applications. Think carefully about problems, explore alternatives, and can explain the reasoning behind their choices. This role may suit someone currently working as Lead More ❯
newport, wales, united kingdom Hybrid / WFH Options
Sadler Recruitment
through decision-making, problem-solving, and hands-on contribution. The role involves Re-architecting an AWS environment that has grown inconsistently, addressing security, governance, and scalability. Designing and implementing distributedsystems and data pipelines, with a focus on reliability and resilience. Working directly on code and infrastructure as code (around 50% of your time). Running proofs of … or Java (currently use serverless architecture using Node.js and React). Understand SQL at a solid level, with broader experience across NoSQL and data pipeline design. Have experience with distributedsystems or progressive web applications. Think carefully about problems, explore alternatives, and can explain the reasoning behind their choices. This role may suit someone currently working as Lead More ❯
Cardiff, Glamorgan, United Kingdom Hybrid / WFH Options
through decision-making, problem-solving, and hands-on contribution. The role involves Re-architecting an AWS environment that has grown inconsistently, addressing security, governance, and scalability. Designing and implementing distributedsystems and data pipelines, with a focus on reliability and resilience. Working directly on code and infrastructure as code (around 50% of your time). Running proofs of … or Java (currently use serverless architecture using Node.js and React). Understand SQL at a solid level, with broader experience across NoSQL and data pipeline design. Have experience with distributedsystems or progressive web applications. Think carefully about problems, explore alternatives, and can explain the reasoning behind their choices. This role may suit someone currently working as Lead More ❯