Senior Systems Engineer (SFIA4)

Role Overview Zaizi is hiring a Senior Systems Engineer (SFIA4) to help deliver advanced technical solutions for the UK Defence and National Security sector. This position is based in London and focuses on building mission-critical systems that blend Cloud-native architectures, data-driven tools, and Artificial Intelligence within safety-critical settings. W…

Join Alten as a Senior Systems Engineer and be part of a leading technology consultancy that specializes in engineering and IT services. In this critical role, you will drive innovative solutions and enhance system performance across various projects.

Statkraft is looking for a Senior Power Systems Engineer to join the London office. This position centers on creating solutions that address shifts in the energy sector. Role focus The Senior Power Systems Engineer will work on challenges related to the evolving energy landscape. The work involves applying deep knowledge of power systems to develop practical responses to industry changes. What you bring Expertise in power systems engineering Strong interest in shaping the future of energy systems

Join Alten as a Senior Power Systems Engineer and be part of an innovative team dedicated to delivering cutting-edge solutions in the energy sector. In this role, you will leverage your expertise in power systems to design and implement complex engineering projects, ensuring efficiency and effectiveness in energy management.

Role overview Facility Performance Consulting Limited is seeking a Senior Digital Buildings System Engineer based in London. The position centers on designing and delivering advanced digital systems that support building performance and sustainability objectives. What you will do Design digital systems to manage and optimize building operations Implement solutions that contribute to efficiency and sustainable outcomes Collaborate with colleagues to deliver integrated project results Requirements Background working with digital building technologies Interest in sustainability and technical innovation Comfort working collaboratively on complex projects Facility Performance Consulting Limited welcomes candidates motivated by technology and sustainable design.

Join Graphcore, a pioneering company at the forefront of artificial intelligence and machine learning technology, as a Senior Systems Engineer specializing in Performance and Reliability. In this role, you will be instrumental in ensuring that our systems deliver exceptional performance and reliability that sets us apart in the industry.Your expertise will contribute to designing, implementing, and optimizing system architectures that support our cutting-edge technology. You will collaborate closely with cross-functional teams to tackle complex challenges and drive innovation within the organization.

Join Our Innovative Team as a Senior AI Engineer (Agentic Systems)At StarCompliance, we are at the forefront of creating software solutions that address critical compliance needs for our global clientele. As we integrate AI as a fundamental capability throughout our software development lifecycle, we invite you to be part of this transformative journey.We are looking for a Senior AI Engineer to spearhead the practical implementation and expansion of AI-assisted and agentic engineering within our teams. This is a hands-on role where you will engage directly with real codebases, leveraging cutting-edge AI-native development environments (Cursor preferred) to revolutionize the software development process.Your mission will be to evolve AI from a mere tool into a fully embedded system that is repeatable and scalable. You will craft and execute playbooks, establish workflows, and define patterns that allow our teams to harness the power of parallel AI agents, facilitate autonomous code reviews, and create AI-driven delivery pipelines. Additionally, you will play a pivotal role in launching new initiatives, ensuring they are built on the right architecture and AI-enabled engineering practices from the outset.This position is part of our R&D Engineering team and collaborates closely with Platform, QA, and Product Engineering. Here, influence is gained through tangible delivery rather than hierarchy.Our Vision of AIWe view AI not just as an assistant, but as an integral component of our engineering ecosystem. We expect engineers in this role to embrace this perspective and drive our AI initiatives forward.

Tipalti Solutions seeks a Senior ERP Systems Software Engineer based in London. This role centers on designing and building ERP solutions that align with both customer needs and company objectives. Collaboration across departments is key, as the position involves working closely with other teams to refine and expand the ERP software. Main responsibilities Lead the architecture and development of ERP systems Work with cross-functional groups to enhance software features Drive updates and improvements to existing ERP products Use deep ERP knowledge to address complex technical issues Requirements Significant experience working with ERP systems Strong foundation in software engineering and solution design Proven ability to collaborate with multiple teams Focus on delivering dependable, high-quality solutions

Join our dynamic engineering team at Hypersonica Productions Ltd. as a Senior Systems Engineer. In this pivotal role, you will lead the design and implementation of innovative systems that drive our cutting-edge projects. Collaborate with a talented group of engineers to enhance our systems architecture, ensuring optimal performance and reliability.Your expertise will contribute to the development of scalable solutions while mentoring junior engineers and fostering a culture of continuous improvement. If you are looking for a challenging opportunity to make a significant impact in a forward-thinking company, we want to hear from you!

Join our dynamic team at Egis Group as a Senior Systems Integration Engineer specializing in rail systems. In this pivotal role, you will be responsible for integrating complex systems that enhance the efficiency and safety of rail operations. Your expertise will contribute significantly to the evolution of rail transport, ensuring seamless integration of technologies within our projects.As part of a collaborative environment, you will work closely with cross-functional teams to design, implement, and optimize systems, leveraging your technical skills while also engaging in problem-solving and project management. Your contributions will be vital in delivering high-quality solutions that meet the needs of our clients.

Join our innovative team at Graphcore as a Senior Systems Engineer, where your expertise in performance and reliability analysis will play a crucial role in shaping the future of our cutting-edge technology. This position offers you the opportunity to work with a talented group of engineers and researchers dedicated to advancing AI capabilities.Your responsibilities will encompass analyzing and optimizing system performance, ensuring reliability, and collaborating with cross-functional teams to implement best practices. You will leverage your technical knowledge to identify bottlenecks and propose solutions that enhance system efficiency.

Join Longshot Systems, a pioneering company dedicated to developing cutting-edge platforms for sports betting analytics and trading.We are in search of a Senior Software Engineer to become a vital member of our trading platform team. As a small but highly focused organization, we seek an individual who can effectively architect and implement solutions to achieve our upcoming product, performance, and stability objectives. This role involves ownership of our technical standards, coding guidelines, CI/CD processes, observability, and security measures. If you are passionate about delivering features and enhancing the overall technical excellence of our team and platform, we want to hear from you.Our trading platform is responsible for integrating with numerous bookmakers and exchanges globally, normalizing and consolidating global odds data across various sports for internal trading strategies. We manage thousands of odds updates and trades per second, maintaining stringent standards for latency, correctness, and feed quality. You will be at the forefront, integrating additional trading venues, optimizing key platform components, and enhancing the safety and speed of trading. Our team also oversees a large historical data repository, supporting the company's broader trading and research initiatives.Our key platform systems are primarily built using Golang, featuring message buses and databases at the core of our architecture. While fluency in Golang is advantageous, it's not a prerequisite, as we have a team full of experts ready to assist you in learning.We embrace a hybrid work model, with Thursdays in our London office (Farringdon) and flexible arrangements for the rest of the week. Our standard working hours are 10 AM to 6 PM UK time, Monday through Friday, with support for flexible schedules to help our team achieve their objectives.

About FreshaFresha is the premier marketplace platform for beauty and wellness, trusted by millions of consumers and businesses globally. With over 130,000 businesses and more than 450,000 stylists using our platform, we have successfully facilitated over 1 billion appointments to date.Headquartered in London, United Kingdom, Fresha operates 15 global offices across North America, EMEA, and APAC.Our platform empowers consumers to discover, book, and pay for beauty and wellness appointments with local businesses. Simultaneously, beauty and wellness professionals utilize our comprehensive platform to manage their operations with intuitive business software and cutting-edge financial technology solutions.Fresha’s ecosystem equips merchants with everything they need to run their businesses smoothly, including appointment bookings, point-of-sale systems, customer record management, marketing automation, loyalty programs, beauty product inventory, and team management.Our consumer marketplace unlocks revenue potential for partner businesses by harnessing the power of online bookings and automated marketing through mobile applications and advanced integrations with major technology brands like Instagram, Facebook, and Google.Role OverviewAs we embark on our exciting growth journey, we are in search of an outstanding Senior Front-End Engineer to join our global team.In this role, you will report directly to the Team Lead and collaborate within a cross-functional product team. You will be responsible for designing and developing applications while coordinating with the team working on various layers of Fresha's infrastructure.This position is ideal for individuals who thrive in a fast-paced and dynamic environment, prefer working autonomously, relish challenges, and enjoy contributing to innovative solutions.

About the Role:Brook Green Supply is an innovative energy provider located in the heart of London, operating a fully independent Microsoft 365 and Azure infrastructure. Our IT department is a dynamic, ownership-driven team responsible for managing the complete technology stack, encompassing everything from end-user support to cloud identity, device management, security, and ongoing infrastructure initiatives.As a Senior IT Systems Engineer (Level 2), you will serve as the primary technical resource within our team, taking charge of complex issues and directly overseeing platform administration across Azure/Entra ID, Exchange Online, Microsoft Intune, Defender, SharePoint, and Cloudflare DNS. You will play a pivotal role in mentoring our Level 1 analysts, spearheading automation improvements, and contributing to the continuous advancement of BGS's independent IT environment.This position is ideal for a technically adept engineer with substantial hands-on experience in M365 and Azure who thrives in an environment that values initiative and offers a broad scope of impact.

Who are we?At Cohere, our mission is to harness the power of artificial intelligence to enhance human capabilities. We are pioneers in developing and deploying advanced language models for developers and enterprises, enabling them to create transformative experiences such as content generation, semantic search, retrieval-augmented generation (RAG), and intelligent agents. We are committed to driving the widespread adoption of AI technologies.We take pride in our craftsmanship. Each team member plays a vital role in enhancing our models’ capabilities and delivering exceptional value to our clients. We thrive in a fast-paced environment where our focus is on what is best for our customers.Cohere is made up of a diverse group of researchers, engineers, designers, and other professionals, all dedicated to their craft. We believe that a variety of perspectives is essential for creating remarkable products.Join us on our journey and help shape the future of AI!We are seeking a seasoned engineer to contribute to the design, maintenance, and evolution of the training framework that underpins our state-of-the-art language models. This role is positioned at the crossroads of large-scale training, distributed systems, and high-performance computing (HPC) infrastructure. You will be responsible for architecting and managing core components that facilitate rapid, reliable, and scalable model training, as well as developing tools that connect innovative research ideas to thousands of GPUs.If you have a passion for working across the entire machine learning systems stack, this role offers you the opportunity and autonomy to make a substantial impact.What You’ll Work OnOwn and enhance the training framework for large-scale LLM training.Design distributed training abstractions including data/tensor/pipeline parallelism, FSDP/ZeRO strategies, memory management, and checkpointing.Optimize training throughput and stability on multi-node clusters (e.g., GB200/300, AMD, H200/100).Develop and maintain tools for monitoring, logging, debugging, and improving developer experience.Collaborate with infrastructure teams to ensure our clusters, container environments, and hardware configurations are optimized for high-performance training.Analyze and troubleshoot performance bottlenecks throughout the machine learning systems stack.Create robust systems that guarantee reproducible, debuggable, and large-scale training runs.You Might Be a Great Fit If You HaveExtensive engineering experience in large-scale distributed training or HPC systems.Deep familiarity with Java, Python, and/or C++ programming languages.Experience with cloud platforms and container orchestration tools.Strong problem-solving skills and a collaborative mindset.

Join Arondite as a Deployed Systems Engineer, where you will play a pivotal role in the deployment and management of advanced systems solutions. This position offers an exciting opportunity for technical professionals to showcase their expertise in a dynamic environment.

Join Longshot Systems Ltd, where we create cutting-edge platforms for sports betting, analytics, and trading. We are seeking a Senior DevOps Engineer to enhance our platform team.You will manage a medium-sized deployment that connects with global sports betting platforms and supports multiple internal teams with diverse infrastructure needs. Your role will involve overseeing critical systems from backtesting to real-time trading and long-running backend services.Our infrastructure is hosted on AWS, and we are undergoing an evolution focused on automation and repeatability to drive our growth. Our core systems process thousands of trading signals per second, requiring minimal latency, presenting similar challenges to high-frequency trading environments but in the sports betting sector.As a Senior DevOps Engineer, you will collaborate closely with the CTO and development team to maintain our production and development trading infrastructure. You will take the lead on developing new infrastructure and troubleshooting performance and stability issues across applications, networks, and operating systems. You should be adept at analyzing metrics, packet dumps, and logs to identify and resolve issues, followed by implementing automation to prevent future occurrences.The ideal candidate is autonomous and innovative, thriving on generating new solutions and suggesting improvements to current methodologies. We offer you flexibility and the freedom to explore effective solutions.We embrace a hybrid work model, requiring in-office attendance on Thursdays at our London (Farringdon) office, with flexible arrangements for the remainder of the week. Our standard working hours are 10 AM to 6 PM UK time, Monday to Friday, with support for flexible schedules to achieve your goals.Regarding on-call responsibilities, while we do not maintain a 24/7 rota, we have a compensated on-call system based on best efforts, which will involve sharing responsibilities within the platform team.Interview Process:Introductory call (30 mins) – discuss your background and interests.First technical interview (30 mins) – live systems management and code review.Second technical interview (60 mins) – in-depth technical questions.Full assessment day (10:30 AM – 5 PM) – a practical systems engineering exercise reflecting actual team work. Meet the team, tour the office, and enjoy a complimentary lunch.

Are you ready to embrace a new challenge as a System Engineer? Join us in taking charge of the design, maintenance, and optimization of cutting-edge IT systems and infrastructure. If you have a passion for ensuring reliability, security, and scalability across the environments that power Aidence's global operations, we want to hear from you! Your drive for continuous improvement, coupled with your ability to streamline processes and collaborate with cross-functional teams, will be vital in delivering efficient, compliant, and high-performing systems.

Join the Vanguard of InnovationAt Palantir, we are at the forefront of developing advanced software for data-driven decision-making and operational excellence. Our platforms empower organizations to harness data for transformative outcomes—be it in developing lifesaving pharmaceuticals, anticipating supply chain disruptions, or locating missing persons.Your ContributionAs a Systems Engineer within Palantir’s Technical Operations team, you will play a pivotal role in optimizing our core business processes and workflows. Your responsibilities will encompass designing, constructing, and sustaining the infrastructure that underpins our vital business functions, including financial reporting, sales operations, and personnel management. Collaborating with both internal teams and external partners, you will adapt industry tools to meet the dynamic needs of Palantir, while enhancing our utilization of Palantir Foundry and AIP for internal projects.In this capacity, you will provide strategic technical guidance to key stakeholders. A typical day may involve assessing new technological solutions, aligning tech initiatives with business objectives, resolving high-priority system challenges, and engaging in cross-functional collaboration to drive system enhancements. Success in this role requires adeptness in managing multiple business systems while demonstrating flexibility and adaptability to evolving requirements and challenges.

Hudson River Trading (HRT) is seeking a talented Senior GPU Systems Engineer to join our dynamic Research and Development team. In this pivotal role, you will play a crucial part in scaling and advancing our sophisticated HPC/AI research infrastructure. Collaborating with a diverse team of experts, you will ensure our trading and research operations run seamlessly 24/7 across the globe. Your responsibilities will include the design and optimization of extensive GPU compute clusters, identifying and resolving performance bottlenecks, and automating system deployment and monitoring across thousands of nodes. This is a high-impact opportunity that requires innovative thinking and technical expertise in a fast-paced environment.