Dorset, England, United Kingdom Hybrid / WFH Options
Hays Specialist Recruitment Limited
end-to-end infrastructure solutions across compute, storage, and networking Producing detailed technical documentation: hardware specs, data centre layouts, cabling, power and cooling Installing and tuning Linux-based operating systems and configuring SLURM job schedulers Optimising high-speed networking technologies (Infiniband, RoCE) Automating deployments and maintenance using Ansible, Terraform, Bash, and Python Troubleshooting complex distributedsystems and … engineers This is a rare opportunity to lead infrastructure projects that directly support cutting-edge AI research and development. If you thrive in technically challenging environments and enjoy building systems that scale, this role is for you. What you'll need to succeed Proven experience designing and scaling large HPC clusters (hundreds to thousands of nodes) Strong SLURM configuration … skills - partitions, priorities, resource management Advanced Linux administration and performance tuning Expertise in high-performance networking (Infiniband, RoCE, RDMA) Experience with distributed file systems (Lustre, Ceph, WEKA, VAST) Proficiency in automation and scripting (Ansible, Terraform, Bash, Python) A solid understanding of monitoring, resilience, and security compliance Excellent documentation skills and a passion for mentoring and knowledge sharing Desirable More ❯
Oxfordshire, Milton Hill, United Kingdom Hybrid / WFH Options
Mars Recruitment
with tools such as CMake, GIT (or other source code control system), a bug or issue tracking system, and debuggers Experience of developing complex software applications Experience developing control systems Python Distributedsystems Database interaction/SQL queries Cloud infrastructure (e.g. Azure/AWS) Our client is offering a hybrid working arrangement with 3 days in their More ❯
Product-Focused Backend Engineer Functional Programming & DistributedSystems London (Hybrid) | £120,000£160,000 + Equity At Ncounter, were partnering with a cutting-edge AI company on a mission to redefine how professionals in highly regulated industries interact with complex, multi-modal data. Their platform empowers users to deploy custom no-code AI agents that produce verifiable outputs … high-calibre engineering function where every member contributes to planning, testing, analysis, and execution. What Youll Be Doing: Building and evolving APIs that serve as the backbone for internal systems and customer-facing applications Scaling the platform to support heavy, multi-tenant usage patterns and high-throughput AI workloads Applying foundation models (GPT-4.1, Claude 4, Gemini 1.5 and … on experience with functional programming (Elixir is a plus, but other languages like Scala, Haskell, Clojure, Go, Node.js, or F# are welcome) Proven track record of building and scaling distributed backend systems Solid understanding of infrastructure-as-code and cloud orchestration (AWS, Terraform, Docker) Familiarity with queue management, observability tooling, and shipping in fast-paced environments Awareness of More ❯
You will have the opportunity to delight millions of TV streamers worldwide while gaining meaningful experience across a variety of disciplines. Are you passionate about building scalable, high-performance systems that process massive amounts of data? Do you thrive on designing and implementing innovative solutions to empower engineering teams with actionable insights? Are you excited to advance open-source … s observability platform, which operates at an impressive scale by ingesting terabytes of data daily and managing hundreds of millions of active series. We focus on building scalable, performant systems to meet Roku's unique needs. By leveraging open-source tools, CNCF-supported projects, and custom solutions, we enable engineering teams across Roku to monitor, debug, and optimise their … fast iteration, and we emphasise solving meaningful engineering problems, collaboration, and continuous improvement of how we work as a team. About the Role You will work on core observability systems (metrics, logs, traces) while also developing robust data pipelines and storage solutions optimized for high throughput, performance, and cost. You'll leverage technologies such as time-series databases, columnar More ❯
Product-Focused Backend Engineer – Functional Programming & DistributedSystems London (Hybrid) | £120,000–£160,000 + Equity At Ncounter, we’re partnering with a cutting-edge AI company on a mission to redefine how professionals in highly regulated industries interact with complex, multi-modal data. Their platform empowers users to deploy custom no-code AI agents that produce verifiable … calibre engineering function where every member contributes to planning, testing, analysis, and execution. What You’ll Be Doing: Building and evolving APIs that serve as the backbone for internal systems and customer-facing applications Scaling the platform to support heavy, multi-tenant usage patterns and high-throughput AI workloads Applying foundation models (GPT-4.1, Claude 4, Gemini 1.5 and … on experience with functional programming (Elixir is a plus, but other languages like Scala, Haskell, Clojure, Go, Node.js, or F# are welcome) Proven track record of building and scaling distributed backend systems Solid understanding of infrastructure-as-code and cloud orchestration (AWS, Terraform, Docker) Familiarity with queue management, observability tooling, and shipping in fast-paced environments Awareness of More ❯
london, south east england, united kingdom Hybrid / WFH Options
Paradigm Talent
pushing the boundaries of computational biology, combining machine learning, cloud infrastructure, and scientific research to accelerate discoveries in life sciences. As a Staff Backend Engineer , you’ll build the distributedsystems and data infrastructure that power the lab’s next-generation biology platform. From model serving to real-time data processing, your work will form the backbone of … Collaborate across disciplines , working with ML engineers, biologists, and platform teams to ensure seamless integration between computation, data, and science. You should have Deep experience building and scaling backend systems and distributed applications . Strong coding skills in Python , with an understanding of performance tuning and concurrency. Hands-on experience with Kubernetes , AWS , and modern cloud infrastructure . … systems. Knowledge of scientific or biological computing environments . This is a rare opportunity to join a deep-tech AI lab where backend engineering meets scientific discovery, building the systems that let machine learning models and experimental biology evolve together. If you want to design the infrastructure behind a platform that could change how we understand life itself, we More ❯
slough, south east england, united kingdom Hybrid / WFH Options
Paradigm Talent
pushing the boundaries of computational biology, combining machine learning, cloud infrastructure, and scientific research to accelerate discoveries in life sciences. As a Staff Backend Engineer , you’ll build the distributedsystems and data infrastructure that power the lab’s next-generation biology platform. From model serving to real-time data processing, your work will form the backbone of … Collaborate across disciplines , working with ML engineers, biologists, and platform teams to ensure seamless integration between computation, data, and science. You should have Deep experience building and scaling backend systems and distributed applications . Strong coding skills in Python , with an understanding of performance tuning and concurrency. Hands-on experience with Kubernetes , AWS , and modern cloud infrastructure . … systems. Knowledge of scientific or biological computing environments . This is a rare opportunity to join a deep-tech AI lab where backend engineering meets scientific discovery, building the systems that let machine learning models and experimental biology evolve together. If you want to design the infrastructure behind a platform that could change how we understand life itself, we More ❯
london (city of london), south east england, united kingdom Hybrid / WFH Options
Paradigm Talent
pushing the boundaries of computational biology, combining machine learning, cloud infrastructure, and scientific research to accelerate discoveries in life sciences. As a Staff Backend Engineer , you’ll build the distributedsystems and data infrastructure that power the lab’s next-generation biology platform. From model serving to real-time data processing, your work will form the backbone of … Collaborate across disciplines , working with ML engineers, biologists, and platform teams to ensure seamless integration between computation, data, and science. You should have Deep experience building and scaling backend systems and distributed applications . Strong coding skills in Python , with an understanding of performance tuning and concurrency. Hands-on experience with Kubernetes , AWS , and modern cloud infrastructure . … systems. Knowledge of scientific or biological computing environments . This is a rare opportunity to join a deep-tech AI lab where backend engineering meets scientific discovery, building the systems that let machine learning models and experimental biology evolve together. If you want to design the infrastructure behind a platform that could change how we understand life itself, we More ❯
engineering alongside driving best practice and projects. What You'll Do Working primarily in Java (Spring Boot, Hibernate, etc.) Drive design and architecture decisions for scalable, secure, and performant systems Collaborate cross-functionally with Product, Design, and DevOps to deliver high-impact features Conduct code reviews, establish coding standards, and promote engineering best practices Help with the hiring process … team workflows and development processes Stay hands-on with coding when necessary, especially in system-critical components What They're Looking For Strong expertise in Java and JVM-based systems (8+ years coding experience preferred) Solid background in system design, distributedsystems, and cloud architectures (AWS/Azure/GCP) Passion for clean code, testing, and performance More ❯
/day (Inside IR35) – Hybrid (2x a week - London) – 6 month contract Our client is seeking a Senior Java Developer who is passionate about clean code, cloud-native systems, and building technology that makes a real impact. This is a unique opportunity to work in an agile, high-ownership engineering culture. What You'll Be Doing: Build and scale … design, and infrastructure Troubleshoot complex issues and help ensure system reliability and performance What You’ll Bring: Strong backend engineering experience, especially in Java and Spring Deep understanding of distributedsystems and microservices Hands-on experience with AWS , Kubernetes , Docker , and Terraform Familiarity with CI/CD pipelines and testing best practices Solid SQL and relational database skills More ❯
london (city of london), south east england, united kingdom
Arrows
/day (Inside IR35) – Hybrid (2x a week - London) – 6 month contract Our client is seeking a Senior Java Developer who is passionate about clean code, cloud-native systems, and building technology that makes a real impact. This is a unique opportunity to work in an agile, high-ownership engineering culture. What You'll Be Doing: Build and scale … design, and infrastructure Troubleshoot complex issues and help ensure system reliability and performance What You’ll Bring: Strong backend engineering experience, especially in Java and Spring Deep understanding of distributedsystems and microservices Hands-on experience with AWS , Kubernetes , Docker , and Terraform Familiarity with CI/CD pipelines and testing best practices Solid SQL and relational database skills More ❯
/day (Inside IR35) – Hybrid (2x a week - London) – 6 month contract Our client is seeking a Senior Java Developer who is passionate about clean code, cloud-native systems, and building technology that makes a real impact. This is a unique opportunity to work in an agile, high-ownership engineering culture. What You'll Be Doing: Build and scale … design, and infrastructure Troubleshoot complex issues and help ensure system reliability and performance What You’ll Bring: Strong backend engineering experience, especially in Java and Spring Deep understanding of distributedsystems and microservices Hands-on experience with AWS , Kubernetes , Docker , and Terraform Familiarity with CI/CD pipelines and testing best practices Solid SQL and relational database skills More ❯
london, south east england, united kingdom Hybrid / WFH Options
NonStop Consulting
On-site) Location: London, UK Type: Full-time | Permanent Salary: Competitive + equity + benefits Are you a seasoned Rust Engineer with a passion for building high-performance, reliable systems? We’re looking for an experienced Senior Rust Engineer to join our London team and take ownership of critical backend components that power our next-generation platform. What You … ll Do Architect, design, and implement core systems in Rust Lead by example — write clean, efficient, and idiomatic Rust code Mentor junior and mid-level engineers, sharing best practices in systems design and Rust development Collaborate with cross-functional teams to deliver scalable, secure, and fault-tolerant applications Drive performance tuning, code reviews, and architectural improvements across the … stack What We’re Looking For 5–8+ years of professional software engineering experience 3–5+ years of hands-on experience with Rust in production environments Strong understanding of systems programming , concurrency , networking , and low-level performance optimisation Experience with microservices , distributedsystems , or blockchain technologies is highly desirable Familiarity with Linux systems , CI/CD More ❯
slough, south east england, united kingdom Hybrid / WFH Options
NonStop Consulting
On-site) Location: London, UK Type: Full-time | Permanent Salary: Competitive + equity + benefits Are you a seasoned Rust Engineer with a passion for building high-performance, reliable systems? We’re looking for an experienced Senior Rust Engineer to join our London team and take ownership of critical backend components that power our next-generation platform. What You … ll Do Architect, design, and implement core systems in Rust Lead by example — write clean, efficient, and idiomatic Rust code Mentor junior and mid-level engineers, sharing best practices in systems design and Rust development Collaborate with cross-functional teams to deliver scalable, secure, and fault-tolerant applications Drive performance tuning, code reviews, and architectural improvements across the … stack What We’re Looking For 5–8+ years of professional software engineering experience 3–5+ years of hands-on experience with Rust in production environments Strong understanding of systems programming , concurrency , networking , and low-level performance optimisation Experience with microservices , distributedsystems , or blockchain technologies is highly desirable Familiarity with Linux systems , CI/CD More ❯
london (city of london), south east england, united kingdom Hybrid / WFH Options
NonStop Consulting
On-site) Location: London, UK Type: Full-time | Permanent Salary: Competitive + equity + benefits Are you a seasoned Rust Engineer with a passion for building high-performance, reliable systems? We’re looking for an experienced Senior Rust Engineer to join our London team and take ownership of critical backend components that power our next-generation platform. What You … ll Do Architect, design, and implement core systems in Rust Lead by example — write clean, efficient, and idiomatic Rust code Mentor junior and mid-level engineers, sharing best practices in systems design and Rust development Collaborate with cross-functional teams to deliver scalable, secure, and fault-tolerant applications Drive performance tuning, code reviews, and architectural improvements across the … stack What We’re Looking For 5–8+ years of professional software engineering experience 3–5+ years of hands-on experience with Rust in production environments Strong understanding of systems programming , concurrency , networking , and low-level performance optimisation Experience with microservices , distributedsystems , or blockchain technologies is highly desirable Familiarity with Linux systems , CI/CD More ❯
engineering alongside driving best practice and projects. What You'll Do Working primarily in Java (Spring Boot, Hibernate, etc.) Drive design and architecture decisions for scalable, secure, and performant systems Collaborate cross-functionally with Product, Design, and DevOps to deliver high-impact features Conduct code reviews, establish coding standards, and promote engineering best practices Continuously improve team workflows and … development processes What They're Looking For Good expertise in Java and JVM-based systems (3+ years coding experience preferred) Solid background in system design, distributedsystems, and cloud architectures (AWS/Azure/GCP) Passion for clean code, testing, and performance optimization Excellent communication, leadership, and decision-making skills A mindset for innovation, problem-solving, and More ❯
to-end ownership + product influence 🌍 Flexible location (London/Athens hubs) Key Responsibilities Architect and implement the backend platform for data processing, search, and advanced reasoning Design scalable systems and APIs for data-intensive, low-latency workflows Optimize database interactions for high-speed visual search and reasoning Manage cloud infrastructure (compute, networking, storage, security, observability) Set up CI … first approach: asking “why,” not just “how” What You’ll Need Essential Skills Startup Mindset: Bias for action, ownership, comfort with ambiguity Backend Development: Python (FastAPI, Flask) + microservices DistributedSystems: Scaling high-volume data systems Cloud: AWS/GCP/Azure (ECS/EKS, S3, Lambda, IAM or similar) Databases: PostgreSQL + strong data modeling Containers … Vector search (Pinecone, pgvector, Weaviate, Qdrant etc.) Video ingestion pipelines & codecs 💡Don’t worry if you haven’t used these exact tools. If you’ve built and scaled similar systems, we’d love to hear from you. Next Steps Apply here or email us at jobs@inferity.ai with your CV, GitHub, or just a note on why this role More ❯
to-end ownership + product influence 🌍 Flexible location (London/Athens hubs) Key Responsibilities Architect and implement the backend platform for data processing, search, and advanced reasoning Design scalable systems and APIs for data-intensive, low-latency workflows Optimize database interactions for high-speed visual search and reasoning Manage cloud infrastructure (compute, networking, storage, security, observability) Set up CI … first approach: asking “why,” not just “how” What You’ll Need Essential Skills Startup Mindset: Bias for action, ownership, comfort with ambiguity Backend Development: Python (FastAPI, Flask) + microservices DistributedSystems: Scaling high-volume data systems Cloud: AWS/GCP/Azure (ECS/EKS, S3, Lambda, IAM or similar) Databases: PostgreSQL + strong data modeling Containers … Vector search (Pinecone, pgvector, Weaviate, Qdrant etc.) Video ingestion pipelines & codecs 💡Don’t worry if you haven’t used these exact tools. If you’ve built and scaled similar systems, we’d love to hear from you. Next Steps Apply here or email us at jobs@inferity.ai with your CV, GitHub, or just a note on why this role More ❯
london (city of london), south east england, united kingdom
Inferity AI
to-end ownership + product influence 🌍 Flexible location (London/Athens hubs) Key Responsibilities Architect and implement the backend platform for data processing, search, and advanced reasoning Design scalable systems and APIs for data-intensive, low-latency workflows Optimize database interactions for high-speed visual search and reasoning Manage cloud infrastructure (compute, networking, storage, security, observability) Set up CI … first approach: asking “why,” not just “how” What You’ll Need Essential Skills Startup Mindset: Bias for action, ownership, comfort with ambiguity Backend Development: Python (FastAPI, Flask) + microservices DistributedSystems: Scaling high-volume data systems Cloud: AWS/GCP/Azure (ECS/EKS, S3, Lambda, IAM or similar) Databases: PostgreSQL + strong data modeling Containers … Vector search (Pinecone, pgvector, Weaviate, Qdrant etc.) Video ingestion pipelines & codecs 💡Don’t worry if you haven’t used these exact tools. If you’ve built and scaled similar systems, we’d love to hear from you. Next Steps Apply here or email us at jobs@inferity.ai with your CV, GitHub, or just a note on why this role More ❯
London, South East, England, United Kingdom Hybrid / WFH Options
Computappoint
Shape the Future of Data? My client is a leading UK-based IT services and consulting company seeking an experienced Senior Data Engineer who thrives on building robust, scalable systems that unlock the true potential of enterprise data. What You'll Be Doing: Build & Optimise : Take ownership of Starburst (Trino) and Dell Data Lakehouse deployments, turning complex data ecosystems … Container Orchestration : Proven track record with Kubernetes/OpenShift in production environments Big Data Ecosystem : Strong background in Hadoop, Hive, Spark, and cloud platforms (AWS/Azure/GCP) Systems Architecture : Understanding of distributedsystems, high availability, and fault-tolerant design Security Protocols : Experience with LDAP, Active Directory, OAuth2, and Kerberos authentication Unix/Linux Proficiency : Advanced More ❯
the messaging service. Required Skills & Qualifications: 3+ years of experience administering Solace PubSub+ messaging systems. Strong background in production support , preferably in a 24x7 enterprise environment. Experience working with distributedsystems over WAN , with an understanding of networking, latency, and failover strategies. Solid experience with Prometheus and Grafana for system monitoring and alerting. Proficiency in troubleshooting message delivery … persistence, and topic routing. Experience with capacity management , performance tuning, and system scaling. Familiarity with Linux/Unix systems and scripting (Bash, Python, etc.). Strong analytical and problem-solving skills, with attention to detail. Excellent communication and collaboration skills. Nice to Have: Experience with containerized environments (Docker/Kubernetes). Exposure to other messaging platforms (Kafka, RabbitMQ, MQ … critical applications. Exciting opportunity to work with a wide array of technologies. Chance to further develop your programming skills while administering and supporting one of the most advanced messaging systems available in the market. More ❯
the messaging service. Required Skills & Qualifications: 3+ years of experience administering Solace PubSub+ messaging systems. Strong background in production support , preferably in a 24x7 enterprise environment. Experience working with distributedsystems over WAN , with an understanding of networking, latency, and failover strategies. Solid experience with Prometheus and Grafana for system monitoring and alerting. Proficiency in troubleshooting message delivery … persistence, and topic routing. Experience with capacity management , performance tuning, and system scaling. Familiarity with Linux/Unix systems and scripting (Bash, Python, etc.). Strong analytical and problem-solving skills, with attention to detail. Excellent communication and collaboration skills. Nice to Have: Experience with containerized environments (Docker/Kubernetes). Exposure to other messaging platforms (Kafka, RabbitMQ, MQ … critical applications. Exciting opportunity to work with a wide array of technologies. Chance to further develop your programming skills while administering and supporting one of the most advanced messaging systems available in the market. More ❯
london (city of london), south east england, united kingdom
BGC Group
the messaging service. Required Skills & Qualifications: 3+ years of experience administering Solace PubSub+ messaging systems. Strong background in production support , preferably in a 24x7 enterprise environment. Experience working with distributedsystems over WAN , with an understanding of networking, latency, and failover strategies. Solid experience with Prometheus and Grafana for system monitoring and alerting. Proficiency in troubleshooting message delivery … persistence, and topic routing. Experience with capacity management , performance tuning, and system scaling. Familiarity with Linux/Unix systems and scripting (Bash, Python, etc.). Strong analytical and problem-solving skills, with attention to detail. Excellent communication and collaboration skills. Nice to Have: Experience with containerized environments (Docker/Kubernetes). Exposure to other messaging platforms (Kafka, RabbitMQ, MQ … critical applications. Exciting opportunity to work with a wide array of technologies. Chance to further develop your programming skills while administering and supporting one of the most advanced messaging systems available in the market. More ❯
london, south east england, united kingdom Hybrid / WFH Options
WeDo
scale. As a Senior Software Engineer, you’ll be part of a collaborative, engineering-led culture where quality, scalability, and problem-solving come first. You’ll design and build distributed, microservices-led systems that handle complex data workflows and power decisions for global clients. What You’ll Do: - Design, build, and maintain scalable backend systems using C# … and support other engineers within a high-performing environment What You’ll Bring: - Strong experience with C#/.NET and Azure cloud services - Proven background in building microservices or distributedsystems - Solid understanding of system design, APIs, and data-driven platforms - A collaborative mindset with a passion for clean, scalable architecture Why Apply? - Competitive base salary up to More ❯
london (city of london), south east england, united kingdom Hybrid / WFH Options
WeDo
scale. As a Senior Software Engineer, you’ll be part of a collaborative, engineering-led culture where quality, scalability, and problem-solving come first. You’ll design and build distributed, microservices-led systems that handle complex data workflows and power decisions for global clients. What You’ll Do: - Design, build, and maintain scalable backend systems using C# … and support other engineers within a high-performing environment What You’ll Bring: - Strong experience with C#/.NET and Azure cloud services - Proven background in building microservices or distributedsystems - Solid understanding of system design, APIs, and data-driven platforms - A collaborative mindset with a passion for clean, scalable architecture Why Apply? - Competitive base salary up to More ❯