Senior FPGA Engineer at OLIX | London

About OLIXAt OLIX, we are at the forefront of revolutionizing technology. As the demand for artificial intelligence accelerates, we face an unprecedented infrastructure challenge. Traditional hardware approaches are becoming obsolete, and the industry stands on the brink of a transformative paradigm shift. Our flagship innovation, the Optical Tensor Processi…

About OLIXAt OLIX, we are at the forefront of the AI revolution, addressing the rapidly growing demand for advanced infrastructure in a world where traditional hardware is no longer sufficient. Our innovative Optical Tensor Processing Unit (OTPU) is set to redefine performance and energy efficiency, paving the way for the next generation of technology that will drive the economy for the next century.Role OverviewJoin our team as a Senior Mechanical Engineer, where you will play a pivotal role in designing cutting-edge hardware that harnesses the power of light. You will be responsible for the mechanical architecture of photonic subassemblies, ensuring precision and reliability in our advanced optical interconnect assemblies.Key ResponsibilitiesDesign and develop opto-mechanical assemblies such as waveguide coupling structures and precision alignment fixtures.Conduct tolerance chain analysis to maintain optical alignment budgets, considering thermal variations and long-term stability.Select and evaluate optical-grade materials, ensuring compatibility with thermal and manufacturing processes.Lead the thermal-mechanical co-design for photonic subassemblies, focusing on heatsink designs for high-performance components.Create and maintain GD&T drawings and engineering specifications for optical-grade components.Collaborate closely with optical, process, and reliability engineers to achieve optimal mechanical and optical outcomes.

About OLIXAs artificial intelligence evolves at an unprecedented pace, the demand for advanced computing solutions has surged, revealing a critical infrastructure gap in the industry. Traditional hardware designs, which have remained unchanged for over a decade, can no longer meet the escalating needs of AI applications. At OLIX, we are pioneering the next generation of computing technology with our Optical Tensor Processing Unit (OTPU), designed to deliver unmatched performance and energy efficiency that surpasses existing chip technologies.The RoleWe are on the lookout for a seasoned Senior Electronics Engineer to join our team and play a vital role in developing high-speed, mixed-signal, and power-dense electronics that will be integral to OLIX's optical computing platforms. In this position, you will collaborate with diverse teams, including ASIC, FPGA, Optical, Mechanical, Firmware, and Systems, to create robust and energy-efficient hardware accelerators, including advanced PCIe-based platforms and systems capable of operating at speeds exceeding 25–56Gb/s.You will report to the Electronics Engineering Manager and be involved in both practical execution and strategic technical direction across board-level and subsystem design.ResponsibilitiesDesign and develop high-speed multilayer PCBs that support serial interfaces operating at 25–56Gb/s+ (e.g., PCIe Gen4/Gen5, SERDES-based links).Implement and validate high-current, low-voltage power delivery networks for ASICs and FPGAs.Conduct signal integrity (SI) and power integrity (PI) analysis during schematic and layout phases.Contribute to PCB stack-ups, routing constraints, impedance control strategies, and return path methodologies.Engage in lab-based board bring-up, debugging, and high-speed compliance validation.Assist in the integration of analog front-ends, clock architectures, and mixed-signal subsystems.Collaborate across teams to ensure optimal system performance, manufacturability, and reliability.Support EVT/DVT/PVT builds and transition to production while producing thorough design documentation and validation reports.

About OLIXAt OLIX, we are at the forefront of the AI revolution, tackling the unprecedented demand for advanced computational capabilities. As the industry faces a significant infrastructure gap, we are redefining the hardware landscape with our revolutionary Optical Tensor Processing Unit (OTPU). This innovative technology promises unmatched performance and energy efficiency, setting the stage for the economic opportunities of the next century.Role OverviewJoin us as a Staff Engineer in Hardware Integration, where you will be the leading technical authority in your team, specializing in hardware-software integration across a critical segment of the OTPU stack. Your expertise will guide projects from pre-silicon design to post-silicon validation and sustainment engineering.We seek an experienced engineer who can set the technical vision for the team and tackle the most challenging engineering issues. Collaborating with the Engineering Manager, you will translate strategic priorities into actionable plans, drive technical decisions, and ensure the creation of reliable, maintainable solutions. Your hands-on expertise, sound engineering judgment, and influence through high-quality work will be pivotal to our success.Key ResponsibilitiesLead Technical Direction. Collaborate with the Engineering Manager to establish the technical focus for your team and take ownership of architectural decisions that influence the team's development and operational processes.Translate Priorities into Action. Partner with the Engineering Manager to decompose complex technical challenges into specific, implementable plans, ensuring the team is aligned on building effective solutions.Uphold Technical Excellence. Define the principles, interface agreements, and standards for the team—be it in firmware interfaces, ASIC validation methods, or interconnect fabric integration—ensuring consistent application across projects.Make Informed Technical Decisions. Own critical decision-making within your domain, which may include BSP and firmware architecture, ASIC validation approaches, or BMC platform design.Foster Team Alignment. Cultivate a shared understanding among engineers by ensuring clarity and rigor in technical discussions, facilitating well-reasoned decisions.

About OLIXAt OLIX, we are at the forefront of a technological revolution as we redefine the future of artificial intelligence. The rapid growth of AI has unveiled a significant gap in infrastructure; the pace at which we can develop chips and power stations is no longer sufficient. The industry is still reliant on outdated hardware architectures that have reached their limits. We are pioneering a new paradigm that promises unparalleled speed and efficiency, representing the most significant economic opportunity of the next century. Our innovative Optical Tensor Processing Unit (OTPU) delivers performance and energy efficiency that existing chips cannot match.The Role:We are looking for a highly skilled Senior Staff FPGA Engineer to spearhead the architecture, design, and technical direction of FPGA-based systems within our OTPU platform. This senior individual contributor role is focused on system-level ownership, cross-functional technical leadership, and architectural decision-making. You will define high-performance FPGA subsystems, including high-speed interfaces, precision timing and synchronization, transceivers, and signal processing pipelines. Close collaboration with ASIC, hardware, optical, and software teams will be essential in driving coherent system design, mitigating risks in silicon development, and delivering production-grade solutions.ResponsibilitiesDefine and take ownership of FPGA architecture for high-performance, high-bandwidth systems.Lead the design and optimization of high-speed interface subsystems (PCIe Gen4, multi-lane transceivers operating at >25 Gb/s NRZ).Architect deterministic timing and synchronization strategies across complex multi-device systems.Drive FPGA-based prototyping efforts to support silicon development and system validation.Establish design methodologies, coding standards, and verification strategies, guiding the implementation of robust error detection and correction mechanisms (ECC, including SECDED).Collaborate with software teams to define hardware-software interfaces and system control models.Lead system-level debugging of complex hardware-software interactions.Mentor engineers and provide technical leadership across FPGA development efforts.Identify performance bottlenecks and advocate for architectural improvements.Maintain a deep awareness of advancements in FPGA architectures and high-speed digital design.

About OLIXAt OLIX, we recognize that artificial intelligence is advancing at an unprecedented pace, far surpassing any technology evolution witnessed before. This rapid growth has unveiled a significant infrastructure deficit, making it increasingly challenging to produce chips or energy facilities swiftly enough to meet demand. Presently, the industry continues to utilize a decade-old hardware framework that has reached its peak efficiency. A revolutionary, more rapid, and efficient paradigm is poised to become the foremost economic opportunity of the coming century, giving rise to the most pivotal company of the next ten years. OLIX is at the forefront of this transformation, developing the Optical Tensor Processing Unit (OTPU) that delivers unmatched performance and energy efficiency, surpassing anything currently available.RoleWe are seeking an experienced Senior Assembly Manufacturing Engineer to oversee our front-end packaging processes as we transition from prototype to large-scale production. This pivotal role is about bringing concepts to life. You will be responsible for defining and managing substrate-level assembly processes, including flip-chip bonding, underfill, reflow, and inspection, while serving as the engineering liaison with contract manufacturers responsible for our hardware production. Setting high standards, you will drive Design for Manufacturing/Assembly (DFM/DFA) with our engineering teams, ensuring that every process is meticulously documented and prepared for volume production. With a proven track record in building and scaling front-end packaging processes, you will focus on yield improvement, knowing that the distinction between successful and flawed processes lies in the details. You thrive on tackling complex challenges on the factory floor, rather than merely documenting them.ResponsibilitiesAssembly Process Engineering & New Product Introduction (NPI)You will define and manage assembly processes for intricate electro-mechanical and opto-electronic module hardware, guiding these from initial prototypes through to production. Responsibilities include creating and maintaining manufacturing documentation such as assembly instructions, work standards, process flows, and build records. You will lead DFM/DFA reviews with the engineering teams to ensure that designs are feasible, repeatable, and cost-efficient. Additionally, you will oversee the assembly processes for substrate-level flip-chip bonding (FCB), ensuring stability and yield from the prototype stage to full production. You will also develop and enhance tooling, fixtures, jigs, and build aids to ensure consistent, high-quality assembly, establish readiness criteria for builds, and facilitate organized transitions from engineering to manufacturing. Your support will extend to NPI builds and pilot production, capturing insights and implementing improvements back into design and process definitions.Production Support & RampYou will assist in production ramp planning and execution, ensuring efficient scaling and operational success.

About the Position Jane Street is seeking a talented FPGA Engineer with a strong foundation in both software and hardware design to join our innovative team. In this role, you will play a pivotal part in developing our cutting-edge FPGA-based applications. We are passionate about leveraging tools to enhance programming efficiency, enjoyment, and reliability. We apply these principles within our FPGA Engineering endeavors, and we invite individuals who are keen on utilizing programming language technology to elevate the design, testing, and validation of hardware designs. Our development environment heavily incorporates Hardcaml, an OCaml library designed for succinct hardware description in RTL. Familiarity with Hardcaml is not a prerequisite. As an FPGA Engineer, you will engage in designing and implementing new FPGA applications from the ground up, as well as improving our internal high-level design and testing tools. Your daily responsibilities will primarily involve working with OCaml and Hardcaml for RTL design and testing/integration, while also occasionally utilizing Verilog and C. While prior experience with OCaml is not necessary, a solid understanding of typed programming languages will be beneficial. If you're interested in learning more about our interview process, feel free to explore our interview guide, meet some of our newest hires, or check out our OCaml All The Way Down talk as well as the Programmable Hardware podcast.

ABOUT THE COMPANY: Maven is a leading proprietary trading firm, strategically allocating internal capital across a spectrum of discretionary, systematic, and market-making strategies. Our diverse team of traders, engineers, and technologists is united by a shared commitment to enhancing our capabilities as a premier liquidity provider in global derivatives markets. We utilize cutting-edge execution and pricing technologies to redefine the operational landscape of financial markets. Overview: At the intersection of technology and trading, the Maven FPGA team is at the forefront of hardware innovation, developing proprietary designs that maintain our competitive edge in an evolving landscape. With offices in London, New York, Hong Kong, and Chicago, we engineer solutions to support global trading operations across various exchanges, asset classes, and trading strategies. Our small, agile teams are dedicated to growth, investing in people, tools, and platforms to solidify our leadership in the industry. The Role: As a key member of our team, you will collaborate with traders and technologists to identify and leverage opportunities that enhance our competitive advantage through FPGA systems. By optimizing latencies, maximizing throughput, and improving system robustness, you will play a pivotal role in boosting the efficiency of existing strategies and unlocking new trading opportunities. We have several greenfield projects on the horizon, and proactive, self-motivated candidates will have the opportunity to ascend into leadership roles as the firm continues to evolve. While financial experience is advantageous, your engineering skills, problem-solving capabilities, and readiness to tackle new challenges are of paramount importance to us.

About OLIXAt OLIX, we are at the forefront of revolutionizing AI technology. As the demand for AI continues to skyrocket, the existing infrastructure is struggling to keep pace. Our innovative Optical Tensor Processing Unit (OTPU) is set to redefine performance and energy efficiency, paving the way for groundbreaking advancements in AI hardware.The RoleWe are seeking experienced Senior Compiler Engineers to join our dynamic team focused on developing the machine learning backend (compiler, runtime, and debugger) for our state-of-the-art OPTUs. You will play a crucial role in integrating major ML frameworks such as PyTorch, TensorFlow, JAX, and MXNet with our custom low-level kernel drivers. Your mission will be to ensure optimum performance for a diverse ecosystem of large AI models, collaborating closely with hardware and modeling teams to navigate device trade-offs.Key ResponsibilitiesProject Ownership: Take charge of and deliver projects within your team's roadmap that are critical to achieving impactful technical and business objectives for OLIX.Architect & Build: Design and implement the compiler, runtime, and debugger for PyTorch, TensorFlow, JAX, and MXNet tailored for our custom hardware.Optimize Performance: Utilize advanced optimization techniques (layout, fusion, scheduling, tiling) to eliminate bottlenecks and elevate throughput.Mentor & Uphold Standards: Conduct code reviews, guide peers, and promote best practices in ML backend and performance engineering within your team.Guide Team Direction: Stay ahead of emerging trends in GPU, AI accelerators, and optical computing; propose and prototype innovative solutions.QualificationsA minimum of 5 years of experience in software engineering, predominantly in C/C++ programming.In-depth knowledge of ML framework internals, compiler design, low-level programming, and optimization strategies.Extensive experience optimizing deep learning models using TensorFlow, PyTorch, or JAX.Proficiency in multiple tools and methodologies for compiler development and performance enhancement.

Convergent Research is seeking a Staff Engineer specializing in FPGA Engineering to join the team in London. This position centers on FPGA design and development for technology projects that drive ongoing research and engineering work. Role overview This role contributes to shaping technical solutions that advance the organization's research initiatives. The Staff Engineer will work closely with other engineers and researchers to address complex challenges in FPGA systems. What you will do Design and develop FPGA-based systems for a variety of research-focused projects Use advanced knowledge in FPGA engineering to tackle technical problems Collaborate with cross-functional teams of engineers and researchers Work environment The team emphasizes open communication and values creative approaches to problem solving. Collaboration and a focus on technical progress are central to the group’s work style.

About OLIXAt OLIX, we are at the forefront of an AI revolution, addressing the rapid growth and demand that has outpaced current infrastructure capabilities. The existing hardware frameworks are reaching their limits, and we are innovating a new paradigm to redefine efficiency and performance in computing. Our groundbreaking Optical Tensor Processing Unit (OTPU) sets a new standard for energy efficiency and performance, positioning OLIX to become a leader in the technology of the future.The Role:As the Engineering Manager for Performance Modelling, you will spearhead a dynamic team of six engineers focused on the architecture specifications of the OTPU. Your role involves validating these specifications through rigorous performance modelling techniques including roofline, functional, cycle-accurate, and power modelling. Collaborating closely with compiler, ASIC, product, and business development teams, you will ensure that architectural decisions align with customer needs and business objectives.We seek a seasoned engineering manager who can inspire a talented team to achieve impactful results for our clients and the business. Your deep technical expertise and proven ability to foster a collaborative and high-performing team culture will be crucial to navigating the complexities of hardware/software co-design.

About OLIXAt OLIX, we are at the forefront of a revolutionary transformation in AI technology. As demand for AI capabilities surges, the necessity for advanced infrastructure has never been more critical. The existing hardware frameworks are outdated, and we are committed to pioneering a new era of performance and efficiency. Our flagship product, the Optical Tensor Processing Unit (OTPU), is designed to surpass the limitations of current chip technology, delivering unmatched performance and energy efficiency.The Role:We are on the lookout for a talented Senior Laser Engineer with extensive expertise in VCSEL technology. This pivotal position involves leading the design and development of cutting-edge production-grade laser devices for our OTPU systems. You will engage in a comprehensive range of tasks including epitaxial design, device architecture, fabrication transfer, characterization, packaging interaction, and reliability assessment.Your role will encompass the entire process, leveraging first-principles physics to create manufacturable arrays that function at high speeds and densities. Collaboration with cross-functional teams in electronics, optics, packaging, and system architecture is essential to ensure that VCSEL performance aligns with our ambitious system-level goals for bandwidth, power, and reliability.

Join Olix as the Director of Technical Program Management, where you will spearhead strategic initiatives and lead cross-functional teams to deliver innovative technology solutions. Your expertise will be crucial in driving projects from conception to completion, ensuring alignment with organizational goals and industry standards.

Senior FPGA Engineer – DV EquitiesAbout Us:With over 15 years of experience and headquartered in Chicago, DV Trading has evolved into a leading independent proprietary trading firm. Our team of over 450 professionals offers innovative trading strategies and risk management solutions, providing essential liquidity in global financial markets. Our expansive portfolio includes broker dealers, a cryptocurrency market-making firm, and an emerging investment adviser, allowing us to deliver unparalleled hedging opportunities to commodity producers and users.Role Overview:We are seeking a talented Senior FPGA Engineer to join our semi-systematic equities team. In this pivotal role, you will design and implement cutting-edge FPGA trading systems that enhance our competitive advantage across global equity and futures exchanges. This is an exciting opportunity to lead, innovate, and maximize hardware performance in a dynamic trading environment.Key Responsibilities:Provide technical leadership and mentorship to a team of FPGA engineers focused on developing advanced hardware solutions for market making.Architect and optimize ultra-low-latency trading systems tailored for global equity and futures markets.Define and execute the strategic vision and roadmap for FPGA-based trading infrastructure.Collaborate closely with quantitative researchers, software developers, and network engineers to create integrated, high-performance trading platforms.System Development:Design and implement high-throughput FPGA firmware for efficient market data feed management and order execution.

About Us Welcome to Zopa! Since our inception in 2005, we have pioneered the peer-to-peer lending landscape, and in 2020, we proudly launched Zopa Bank. Our mission is to revolutionize the banking experience by actively listening to our customers and addressing their financial concerns. We are committed to creating a banking ecosystem that prioritizes our customers’ needs, enabling them to reach their financial aspirations. Discover more about our innovative services at Zopa.com!Our accolades speak volumes; we not only receive industry awards but have also been recognized as one of the top three Most Loved Workplaces in the UK.If you are passionate about tackling unconventional challenges, thinking outside the box, and making a significant impact in the financial space, Zopa is the place for you. Join us and be part of something remarkable! Follow our journey on Instagram @zopalife.Your Engineering ChallengeAs a Senior Software Engineer, you won't just be writing code; you'll be tackling real financial challenges faced by millions. You will design and implement distributed systems that handle thousands of transactions each day, develop robust services to manage financial data, and simplify complex financial products to enhance user experience.

About UsNALA is on a mission to revolutionize payments for the next billion users. Our commitment to faster, smarter, and fairer money transfers has led us to grow exponentially since our inception in 2022, expanding our team from just 9 to over 150 talented individuals. We've successfully raised over $50 million from prestigious investors and have been proudly recognized in the Forbes Fintech 50 list for both 2025 and 2026.We operate two primary products:NALA, our consumer application designed to facilitate affordable and efficient cross-border payments for the global diaspora, enabling users to transfer funds from the UK, US, and EU to Africa and Asia.Rafiki, our B2B payment infrastructure that powers global transactions.Our diverse team comprises former professionals from leading companies such as Wise, Stripe, Monzo, Revolut, and CashApp. We prioritize urgency, deep thinking, and a customer-first approach in everything we do.At NALA, we believe this is more than just a job; it’s an opportunity for ownership, impact, and a chance to transform global payments forever.Join us in our journey to create Payments for the Next Billion! Your MissionJoin our Collections & Treasury squad, tasked with developing a new collections product that serves as the financial backbone for various segments of our business.Your responsibilities will include:Establishing the infrastructure to dynamically create virtual IBANsDesigning customer-friendly APIs that enable diverse payment collection strategiesAddressing the real-world complexities of collections across the African continent, going beyond traditional credit card solutions, including STK.This is not just another product team; we are laying the foundation that all other functions will build upon.We are seeking a strong Senior/Lead Engineer, ideally with experience in financial systems, who can take charge of developing a scalable and resilient Collections & Treasury framework. Your Responsibilities in this RoleLead key architectural and implementation decisions for the collections and treasury foundationOversee design processes (RFCs, diagrams, API and system specifications) to ensure alignment on solutions before developmentCollaborate with product managers and stakeholders to translate business objectives into technical requirementsDesign and create both customer-facing and internal APIs to facilitate collections and payment strategiesEnsure the reliability and scalability of our collections infrastructure as we grow.

Role overview DV Trading is hiring a Senior Cloud Engineer to strengthen its cloud infrastructure in support of trading operations. The position is based in London and centers on both improvement and ongoing maintenance of cloud systems critical to the business. What you will do Develop and implement cloud solutions aimed at increasing reliability and scalability. Enhance the performance of trading platforms through targeted system improvements. Collaborate with teams across the company to design and refine cloud strategies. Use technical expertise to streamline processes and improve efficiency within the technology stack. Location This role is located in London.

About H Company H Company pursues advances in superintelligence with a focus on agentic AI. The team works to automate complex, multi-step tasks that typically require human involvement, aiming to expand what people can achieve. H Company values curiosity, responsibility, and a commitment to safety in AI. The culture emphasizes openness, ongoing learning, and collaboration, with each person’s input recognized and appreciated. Infrastructure Team Overview The Infrastructure team provides researchers and engineers with the resources they need to do their best work. This group maintains the core infrastructure behind H’s public services, building systems that are reliable, scalable, and ready for growth. Team members shape everything from foundational models to agent systems and public-facing services.

About UsAt Mytos, we are revolutionizing the biotech industry. Join our mission to empower scientists, expedite their research efforts, and facilitate quicker access to life-saving treatments.We have engineered cutting-edge machines to fully automate human cell production—previously one of the most labor-intensive tasks in biotechnology. Our cells play a crucial role in the discovery and development of new pharmaceuticals, contributing to breakthroughs in treating conditions such as Parkinson’s disease and age-related blindness. Mytos is set to transform the landscape of cure development.Currently operational in multibillion-dollar biotech firms across both coasts of the United States, we have successfully secured $19 million in funding to expedite our market entry and boost product development. Next year, neurons cultivated using our machines will be introduced into the brains of Parkinson's patients.Our team comprises top-tier professionals, including former engineers from Dyson and scientists published in prestigious journals such as Nature. To learn more about your potential Mytos colleagues, click here.Mytos is proudly supported by Y Combinator, the leading startup accelerator responsible for nurturing successful companies like Airbnb, Dropbox, and Ginkgo Bioworks.

Senior Software EngineerBecome a key player in our mission to revolutionize the shopping and dining experience, where innovation, impact, and growth are at the forefront of everything we pursue. Our Engineering teams tackle intricate technical challenges across a global, three-sided marketplace, constructing and scaling systems that cater to millions of customers, riders, and partners daily.From real-time logistics to robust infrastructure and marketplace optimization, we design, build, and operate technology that fuels Deliveroo’s expansive growth.We seek a Senior Software Engineer to join our London (Hybrid - 3 days from the office) team. In this pivotal role, you will enhance code structure and architecture while leading project planning to maximize efficiency and reliability across our production systems.Familiarize yourself with our Engineering team — discover what motivates us, our work culture, and what you can anticipate.Your ResponsibilitiesHere’s what your day-to-day might encompass:Pursue Technical Excellence: Refine code structure and architecture within your team’s domain, conducting impactful code reviews to ensure quality and scalability.Steer Project Planning: Anticipate dependencies and risks, collaborating closely with Product and Design to ensure seamless delivery of complex features.Enhance Operations: Streamline the maintenance and operation of production systems, fostering visibility, health, and operational readiness.Collaborate & Influence: Cultivate relationships across engineering teams to uncover collaboration opportunities and influence the broader technical roadmap.Mentor & Recruit: Facilitate the personal development of your colleagues through technical mentorship and actively participate in engineering interviews to expand our team.Desired QualificationsOur ideal candidate will bring robust expertise in several of these areas and a willingness to grow in others:Solid Engineering Principles: A strong commitment to crafting readable, well-designed, and thoroughly tested software.Backend Proficiency: Extensive experience in developing web-based applications (we utilize Go, Ruby/Rails, Python, Scala, and Rust).Data Proficiency: Familiarity with data handling and optimization techniques.