Engineering Lead - Optical Systems & Photonics Hardware

The Trade Desk is a leading global technology firm dedicated to establishing a more accessible and transparent internet through principled and intelligent advertising solutions. Our platform processes over 1 trillion queries daily, operating at an unparalleled scale. We pride ourselves on nurturing an award-winning culture rooted in trust, ownership, empathy, and collaboration. We celebrate the distinctive experiences and viewpoints that every individual contributes to The Trade Desk, and we are devoted to cultivating inclusive environments where everyone can express their authentic selves daily. Are you passionate about tackling complex challenges on a grand scale? Do you long to be part of a vibrant, globally-connected team where your efforts will significantly impact the creation of a better media ecosystem? Discover why Fortune magazine regularly recognizes The Trade Desk as one of the best small to medium-sized workplaces worldwide. About the Role: We are on the lookout for a Lead Systems Reliability Engineer to enhance our engineering team, focusing on the development and upkeep of our data-driven platform. Utilizing cutting-edge technologies such as Aerospike, MongoDB, and Kafka, we execute numerous real-time activities, achieving a remarkable p99 latency of under 1 millisecond on the backend! If you thrive on tuning, performance testing, troubleshooting, automation, and operating at scale, and if you find excitement in testing next-gen hardware, evaluating data access patterns, and architecting automation for distributed systems, we want to hear from you!

Join System Canada Technologies as a Linux Systems Configuration Engineer, where you'll play a crucial role in optimizing and configuring Linux systems to enhance operational efficiency. Collaborate with a dynamic team to ensure seamless deployment and maintenance of systems that support our innovative technology solutions.

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.

About Five RingsFive Rings is a leading proprietary trading firm dedicated to merging strategy, innovation, and technology to excel in today's global markets. With offices located in New York, Boca Raton, London, and Amsterdam, we engage in trading across a diverse range of domestic and international markets, from the well-established to the highly specialized. Our team is driven by a constant pursuit of new opportunities, thorough risk and reward analysis, and the development of effective strategies and tools to seize these opportunities.At Five Rings, we foster an open culture that promotes the exchange of knowledge and ideas across all areas of the firm.About the RoleWe are in search of a proactive and skilled professional to join our expanding systems administration team. As a Systems Administrator, you will manage the workstations and servers that support our rapidly growing trading operations. Your responsibilities will encompass all systems work on both desktops and within our data centers, while also providing frequent interaction with users across various levels within our organization.We operate primarily on Linux systems for both our servers and trader desktops, with minimal use of Windows servers and desktops as needed.

About the Position Join us as we expand our dynamic team of Linux Engineers at Jane Street. We are in search of a dedicated leader who is passionate about technology and team development. Our team comprises diligent Systems Engineers, Administrators, and Programmers, all focused on maintaining and enhancing the platform that underpins Jane Street's production trading systems. (Learn more about the Linux Engineer role here). As a manager, you will lead by example. We expect you to support your team while also embracing the role of an individual contributor. Your journey will begin with a thorough understanding of Jane Street's technical landscape, allowing you to progressively transition into a management position. We value candidates who embody our principles: integrity, collaboration, intellectual curiosity, humility, and a data-driven approach to decision-making and problem-solving. Successful candidates will be Linux Engineers at their core, with experience in people management, project oversight, large-scale coordination, partnership development, strategic planning, and service delivery. About You The ideal candidate for the Linux Engineering Manager position will possess a robust technical background alongside substantial leadership experience. You should excel in leading through direct involvement, balancing individual technical tasks with leadership duties. A willingness to learn OCaml, our preferred programming language, is essential. The requirements are as follows: Bachelor's degree in Computer Science, Software Engineering, or a related technical field (or equivalent experience) Exceptional communication skills, capable of conveying ideas clearly in both small and large group settings, along with the ability to analyze and solve complex problems A proven history of supporting individuals and fostering team success Experience in cultivating and expanding partnerships across the organization Strong analytical and troubleshooting skills across various domains (technical, process, interpersonal) In-depth knowledge of operating system fundamentals, particularly Linux Proficiency with the Unix command line and shell scripting Hands-on experience with modern Linux systems and systems programming concepts Basic understanding of network protocols Programming experience in any language Fluency in English is required If you're a recruiting agency interested in partnering with us, please...

About the Position Join our dynamic team as a Linux Engineer responsible for maintaining the essential infrastructure that supports Jane Street’s technology ecosystem. Our dedicated group of Systems Engineers, Administrators, and Programmers is pivotal in upholding and enhancing the platform that drives our production trading systems. With a blend of proprietary and open-source software, you will have the opportunity to explore and innovate across various levels of our systems. Each day presents a new challenge, from debugging kernel performance and developing management tools to swiftly resolving production issues. Our current initiatives focus on deployment automation, scalable configuration management, and meticulous monitoring. We embrace automation not out of laziness but because it minimizes errors and alleviates our workload, while also being an enjoyable part of our work. Working with us means engaging with nearly every aspect of the company. We collaborate directly with teams in trading, technology, and operations to design and maintain systems with a comprehensive scope. By leveraging feedback from various departments and utilizing our custom monitoring tools, we aim to quickly address production challenges, conduct thorough root-cause analyses, and implement sustainable solutions. We seek individuals who may not have extensive experience but are intelligent problem solvers eager to learn. You will be mentored by our seasoned team members in a hands-on environment, gaining insights into how we achieve meaningful improvements to our infrastructure daily.

About the TeamAt OpenAI, our Platform Systems team is at the forefront of innovation, merging advanced AI technologies with large-scale distributed systems. We create the engineering and research infrastructure essential for training OpenAI’s premier models on some of the world's most powerful, custom-designed supercomputers.Our dedicated team develops critical model training software, delving deep into the technical stack to enhance collective communication, optimize compute efficiency, refine parallelism strategies, and improve fault tolerance, failure detection, and observability. The systems we engineer are pivotal to accelerating OpenAI’s research, ensuring reliable and efficient training at the cutting edge of technology.We foster close collaboration with researchers throughout the organization, consistently integrating insights from across OpenAI to advance our training platform.About the RoleAs a Software Engineer specializing in Platform Systems, you will architect and develop distributed systems that enhance visibility into large-scale training workloads, ensuring their reliable operation at scale.Your responsibilities will include engineering failure detection, tracing, and observability systems to identify suboptimal or malfunctioning nodes, revealing performance bottlenecks, and enabling engineers to optimize extensive distributed training jobs. This infrastructure is vital for the functionality of OpenAI’s training stack and is continuously evolving to accommodate new use cases and increasingly intricate workloads.This position is central to our training infrastructure, merging systems engineering, performance analysis, and large-scale debugging.In This Role, You WillDesign and implement distributed systems for failure detection, tracing, and profiling large-scale AI training tasks.Create tools to detect slow, faulty, or erratic nodes, providing actionable insights into system performance.Enhance observability, reliability, and performance across OpenAI’s training framework.Diagnose and resolve challenges in complex, high-throughput distributed environments.Collaborate with systems, infrastructure, and research teams to elevate platform capabilities.Adapt and extend failure detection and tracing systems in support of new training methodologies and workloads.You Might Thrive in This Role If YouPossess a strong passion for performance, stability, and observability in distributed systems.Have experience with large-scale systems and are excited to tackle complex challenges in AI infrastructure.

Hudson River Trading seeks a Trading Systems Engineer to join the Trading Systems Infrastructure team. This group builds and maintains the technology behind global trading operations. Their work supports high performance and reliability for the ultra-low latency operating systems, automation tools, and development platforms that keep trading strategies running worldwide, around the clock. Role overview The Trading Systems Engineer will help support and improve real-time production trading environments. The work centers on solving challenges that require high availability, high throughput, and ultra-low latency. This role contributes to the development and automation of essential infrastructure components, working alongside a team committed to keeping trading systems operating smoothly at all times. What you will do Support and improve real-time production trading environments Address challenges involving high availability, high throughput, and ultra-low latency Contribute to developing and automating critical infrastructure Collaborate with a team focused on system reliability and uptime Requirements Experience with coding and automation Strong interest in enhancing technology stacks Ability to solve complex technical problems in demanding environments Comfort working where uptime and performance are essential Locations Austin, TX, United States Boulder, Colorado, United States Chicago, Illinois, United States London, United Kingdom New York, NY, United States Seattle, Washington, United States

Join Hudson River Trading (HRT) as a Systems Engineer within our dynamic Research & Development team. We are at the forefront of technology, building and maintaining expansive distributed compute clusters and multi-petabyte storage solutions. Our facilities boast GPU and CPU compute clusters that surpass those of many national laboratories, and we are developing our own on-premises data centers globally. Our teams are dedicated to optimizing computing, networking, storage, and power usage for unparalleled performance. Our people and our computational resources are our greatest assets, and we are committed to investing in both.As a full-time Systems Engineer, you will play a pivotal role in projects that ensure our live trading and research operations run seamlessly around the clock, globally. Your responsibilities will vary from maintaining our high-performance computing (HPC) environment to designing and implementing services that enhance our research capabilities. Duties will include hardware and software installation, configuration, remote administration, monitoring, testing new technologies, developing automation tools, and performance tuning.

Join our dynamic team as a Senior Site Reliability Engineer at Bumble Inc., where your expertise in Linux and system-level operations will be pivotal in managing complex production environments. We seek a proactive engineer capable of independently troubleshooting incidents, leading post-incident recovery efforts, and implementing enhancements to boost overall system stability, performance, and observability. This role is ideal for hands-on SREs with a solid foundation in Linux infrastructure and third-party system operations, focusing on optimizing large-scale environments of over 5,000 hosts utilizing technologies such as Kafka, Redis, and Kubernetes. Please note, this position centers on operational excellence rather than application development, requiring deep technical acumen and advanced troubleshooting capabilities.

We are seeking a talented and driven Business Systems Lead to join our dynamic team at Wifinity Ltd. In this pivotal role, you will oversee and enhance our business systems, ensuring they align with our strategic objectives and deliver maximum efficiency. This position offers an exciting opportunity to lead projects that shape the future of our organization.

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.

About the PositionAs a Linux Engineer at Jane Street, you will be integral to the vital infrastructure that supports our technology landscape. Our team comprises dedicated Systems Engineers, Administrators, and Programmers focused on maintaining and enhancing the platform that drives our production trading systems. Our unique blend of in-house and open-source software empowers you to explore and innovate at every level. Each day presents opportunities to debug kernel performance, develop management tools, or tackle production issues in real time. We thrive on solving complex systems challenges.Our ongoing projects emphasize deployment automation, scalable configuration management, and meticulous monitoring. While we automate as much as possible, it's not out of laziness. We believe that automation minimizes errors and reduces workloads, not to mention that it adds an element of enjoyment to our tasks.Being part of our group opens avenues to collaborate with various departments across the company. We engage directly with colleagues in Trading, Technology, and Operations to design and maintain systems that have a company-wide impact. Utilizing feedback from other teams and our tailored monitoring tools, we aim to swiftly resolve production issues, conduct thorough root-cause analyses, and implement long-term solutions in a clean and robust manner.

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 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.

Hudson River Trading is hiring a Junior Trading Systems Engineer to join its Trading Systems Infrastructure team. This group is responsible for designing, building, and maintaining the high-performance infrastructure that supports the firm's global trading operations. The focus is on ensuring reliability and efficiency for ultra low-latency operating systems, automation tools, and platforms that keep trading strategies running around the clock. Key responsibilities Contribute to projects within a real-time trading environment Address challenges that demand high availability, high throughput, and ultra low-latency solutions Support the maintenance and improvement of core infrastructure for global trading systems Assist in developing and automating tools that back trading operations What we look for Strong interest in coding and automation Willingness to learn new skills and technologies to work with a complex technical stack Ability to solve technical problems in a demanding setting Locations Chicago, Illinois, United States London, United Kingdom New York, NY, United States

Join Mustard Systems, where we harness the power of statistical modeling to analyze sports events, enabling accurate predictions of future outcomes. By leveraging our proprietary datasets, sophisticated statistical models, and custom software solutions, we aim to deliver precise forecasts in the world of sports.We prioritize speed and real-world impact over perfection in code. If you are an engineer who excels at rapid problem-solving and thrives in a flexible, outcome-oriented environment, you'll find a home with us.Your Role:Enhance our connections to new liquidity providers using advanced web scraping and reverse engineering techniques.Create and maintain low-latency, real-time data feeds to support trading strategies based on extracted data.Improve system visibility for teams to gain insights into integration challenges and enhancements.Our agile methodology allows us to adapt plans as new information and opportunities arise. Developers play a pivotal role, taking complete ownership of their software from design through development, testing, review, and production support.Key Responsibilities:Design and Implement Impactful Features: Develop features that align with our business objectives, ensuring high-quality code that delivers measurable value.Collaborate on Code Quality: Review and test peer code to uphold functionality, maintainability, performance, and quality standards.Production Support: Take charge of your team’s software in production, ensuring stability and prompt resolution of any issues.Cross-Team Collaboration: Partner with other development teams on cross-functional projects, working alongside traders and quants to devise the best solutions to real business challenges.Participate in Out-of-Hours Support for our Software Systems.Core Technology Stack:Languages: Python (3.10+), JavaScript/TypeScript for frontend tasks, and Go for select infrastructure.Tools: RabbitMQ and Kafka for messaging, PostgreSQL and Redis for data storage.Environment: Linux servers.Observability: OpenTelemetry, Prometheus, Grafana, and Zabbix.Required Qualifications:Solid experience in software development, particularly with Python.A degree in Computer Science or a related quantitative field from a recognized university.Excellent communication skills, enabling you to explain complex technical concepts to both technical and non-technical audiences.Strong decision-making skills, with an ability to make informed trade-offs in implementation and architectural decisions, balancing innovation with practicality.Experience with web scraping and related technologies is essential.

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.

Maven Securities Holding Ltd is a distinguished proprietary trading firm that adeptly allocates internal capital across a range of strategies, including discretionary, systematic, and market-making approaches. Our team's extensive expertise encompasses traders, engineers, and technologists, all committed to optimizing our efficiency as a leading liquidity provider for globally traded derivatives. At Maven, we foster a relaxed yet rewarding culture that highly values exceptional performance. With offices located in London, Amsterdam, Hong Kong, New York, and Chicago, our Infrastructure team comprises open-minded technologists dedicated to the continuous enhancement of the end-to-end resiliency, scalability, visibility, and supportability of Maven's trading systems. The Team and the Role The Linux Engineering team is tasked with the deployment, maintenance, and stability of Maven's Linux server environment. This estate spans 10 data centers across Europe and the US, supporting all trading applications. Our infrastructure includes both bare-metal deployments and containers, facilitated by an expanding array of Kubernetes clusters, all operating on-premises. The team operates from Chicago and London, covering both European and US market hours. We proactively monitor our infrastructure for any faults and performance issues, translate technical challenges for our trading teams, design and test new hardware, kernels, and operating systems, manage centralized storage arrays that support our data pipelines, and stay up-to-date with the latest developments in the Linux open-source community. We leverage a variety of open-source tools to extract comprehensive data from our platform and dedicate time to thoroughly investigate issues to ensure we maintain a clear understanding of our environment.