About the Position

We are looking for an experienced Data Centre Engineer who can help our team keep Jane Street’s data safe and accessible around the clock, which will involve a mix of hands-on work in our data and colocation centres, process thinking and project management. 

Your work will mostly involve designing, building, scaling and performing daily upkeep in our regional data and colocation centres. You’ll also get to collaborate with really talented people from all different areas of expertise across Jane Street to optimise our data environments and prevent major problems before they happen. 

You will join an interdisciplinary team made up of several groups across Jane Street, including our Network, Server, Facilities Engineering, Market Data and Trading teams, along with some external data centre operators, colocation and smart hands service providers, and cabling, hardware and telco vendors. Together, you will:

• Design plans for new equipment deployments using data centre best practices
• Coordinate logistical tasks across locations, including procurement, shipping, moving and keeping inventory of our equipment, cabling and parts
• Install and configure server OS in a PXE environment (fundamental Linux knowledge is required to deploy our network equipment)
• Install, cable, configure and troubleshoot different types of network and server equipment
• Ensure that all our data centres uphold the highest standards in terms of security, organisation, documentation, safety, cleanliness and supply management

This role provides on-location services that are crucial to our daily operations in Mumbai, as well as impact the operations of our remote locations across Asia. 

About You

While there’s no fixed set of skills required for this role (we can teach you what you need to know), here are some of the things we’re looking for:

• Ideally 5+ years of experience working in a data centre environment with a strong understanding of data centre best practices, cabling methodology and managing vendors
• A self-starter mindset; someone who takes initiative, gets the job done and is always on the lookout for ways we can do things better
• Clear communication and excellent people and project management skills
• Knowledge of networking fundamentals; including how to switch and routing protocols and troubleshoot Layer 2 and 3 connectivity issues
• Proficiency in a Linux environment (Scripting skills in Bash or Python are a plus)
• Experience deploying a variety of server and network hardware (e.g., Dell, Cisco, Arista, Ciena, Corning products)
• Ability to design, deploy, test and troubleshoot both copper and fibre cabling
• Willingness to travel and work evenings/weekends
• Fluency in English is required

If you're a recruiting agency and want to partner with us, please reach out to agency-partnerships@janestreet.com

Job description

This role does require travel to colocation facilities in the area. We are seeking a dedicated and experienced Data Center Engineer to join our Mumbai team. This role requires hands-on work with our physical servers, network infrastructure, and IT components across various colocation facilities. You'll be responsible for the physical setup, maintenance, and troubleshooting of server and network hardware, as well as ensuring smooth operations and efficient documentation practices. The ideal candidate is energized by working in a cutting-edge datacenter environment that enables IMC to continue to be at the forefront of the evolving global financial markets.

Your Core Responsibilities: 

• Oversee the lifecycle of physical servers, network devices, and other IT infrastructure components
• Perform installation, configuration, and upkeep of server and network components in our datacenters
• Plan and implement efficient rack layouts, cabling schemes, and patching schedules to optimize data center operations
• Diagnose hardware issues, coordinate with vendors for repairs or replacements (RMA process), and ensure timely resolution
• Handle incoming and outgoing shipments, maintain accurate hardware inventory, and manage stock levels of IT components
• Develop and maintain comprehensive documentation of physical infrastructure, cabling layouts, rack configurations, and associated processes
• Build and maintain strong working relationships with hardware vendors, colocation partners, and remote hands teams to ensure efficient operations
• Maintain office IT infrastructure, including hardware and network systems. The position requires a willingness to work outside regular business hours.

Your Skills and Experience: 

• 5+ years of hands-on experience in data center engineering
• Strong understanding and basic troubleshooting of server hardware, network devices, and datastorage systems
• Knowledge of network cabling, fiber optics, and optical transceivers
• Experience with fiber and optic testing 
• Basic knowledge of Linux operating systems and networking protocols
• CCNA certification is a plus
• Proven experience in racking, cabling, and working with data center facilities management tools (power, cooling, etc.)
• Familiarity with basic scripting in Bash and Python within a Linux environment is a plus
• Strong ability to manage time effectively, prioritize tasks in a fast-paced environment, and adapt to changing requirements
• A collaborative mindset, with the ability to work both independently and as part of a team, often with minimal supervision
• Ability to safely lift and move equipment weighing up to 60 pounds
• Willingness to work flexible hours, including evenings and weekends, as required
• A valid driver’s license is required for travel between facilities

Qube Research & Technologies (QRT) is a global quantitative and systematic investment manager, operating in all liquid asset classes across the world. We are a technology- and data-driven group implementing a scientific approach to investing. Combining data, research, technology, and trading expertise has shaped our collaborative mindset, which enables us to solve the most complex challenges. QRT’s culture of innovation continuously drives our ambition to deliver high-quality returns for our investors.

You will join the Core Trading Platform team, which is responsible for the design and operation of QRT’s global electronic trading infrastructure. This team builds and maintains the ultra-low latency systems that underpin real-time trading, managing performance-critical workflows across global markets. You will work closely with developers, traders, and operations to optimise system behaviour, reduce latency, and ensure platform reliability at scale.

Your future role within QRT

• Design and implement low-latency trading systems on Linux, focused on throughput, reliability, and determinism
• Engineer scalable, high-performance distributed systems that support global real-time trading workflows
• Analyse system behaviour using low-level tools such as packet captures, core dumps, and runtime profilers
• Apply deep expertise in TCP, UDP, and multicast to understanding trade-offs in short-haul vs long-haul networks
• Continuously profile, benchmark, and optimise code to reduce latency and increase throughput
• Engage across the full software lifecycle: from architecture to debugging in live trading environments

Your present skillset

• 7+ years of professional C++/C development experience on Linux, including modern C++ and multithreading
• Strong expertise in TCP, UDP, multicast, and performance trade-offs in low-latency networks
• Experience building and operating high-throughput distributed systems in production
• Familiarity with scalable I/O models (e.g., epoll, io_uring), lock-free structures, and concurrent programming
• Deep attention to detail with a rigorous approach to performance troubleshooting and optimisation
• Proficiency in system-level tools (e.g., gdb, perf, tcpdump, valgrind, wireshark)
• Comfortable working autonomously and taking ownership from problem to solution
• Scripting experience (e.g., Python, Bash) and exposure to CI/CD or observability tooling is a plus
• Prior exposure to electronic trading or exchange-facing systems is advantageous

QRT is an equal opportunity employer. We welcome diversity as essential to our success. QRT empowers employees to work openly and respectfully to achieve collective success. In addition to professional achievement, we are offering initiatives and programs to enable employees achieve a healthy work-life balance.

We are seeking a dedicated and experienced Software Developer to join our Mumbai team. The ideal candidate is energised by working in a cutting-edge environment that enables IMC to continue to be at the forefront of the evolving global financial markets.

Core Responsibilities

• Architect, develop and deploy our Big Data environment (Kafka, Hadoop, Dremio, etc.)
• Build, deploy, and monitor our data processing pipelines (Java, Python, Spark, Flink)
• Collaborate with development teams on data modeling, data ingestion, and capacity planning
• Work with users to ensure data integrity and availability
• Act as a Big Data SME and consult on a variety of data-related questions from users and developers

Skills and Experience

• 5+ years' experience working in a mature data engineering environment
• 3+ years of experience building Kafka streaming applications and/or maintaining Kafka clusters
• 2+ years of experience building applications/pipelines with Big Data backends (S3, HDFS, Databricks, Iceberg, etc)
• Experience with Apache Spark, Apache Flink or similar tools
• Strong Java, Python, and SQL development skills
• Experience with common data-science toolkits, especially python-based
• Hands-on experience with Kubernetes and Docker
• Experience with monitoring tools such as Prometheus/Grafana, Alert Manager, Alerta and OpsGenie
• Strong statistical analysis skills
• Demonstrated ability to troubleshoot and conduct root-cause analysis
• Unix scripting experience (bash, python, etc.)

We’re seeking a Linux Engineer with deep systems expertise and Python/scripting experience to join our growing global team. You will be responsible for engineering and operating Linux at scale across our mission[1]critical environment, while also improving automation and self-service tools that enhance our ability to manage IMC’s servers.

The Linux Engineering team is responsible for the provisioning, configuration, performance, and reliability of a large-scale Linux infrastructure that supports a diverse set of workloads. These include ultra-low latency systems critical to high-frequency trading, as well as high-throughput environments that run research workflows and a wide variety of Kubernetes-based applications. This role requires strong Linux fundamentals applied at scale, with automation as a key enabler for consistency and efficiency across the fleet. Your initiative, collaborative attitude, problem-solving skills, and focus on continuous improvement will help ensure IMC stays competitive by bringing the latest technologies and practices into production.

Your Core Responsibilities: 

• Apply deep Linux engineering expertise to troubleshoot and resolve complex issues on enterprise systems, ensuring stability and performance
• Enhance configuration management code and processes that we use to manage over 10,000 bare-metal Linux systems globally
• Develop and maintain Python/Bash tools to support large-scale Linux systems management
• Improve provisioning workflows to seamlessly build bare servers into production-ready platforms
• Extend Linux-focused metrics, logging, monitoring, and alerting integrations for full fleet visibility
• Communicate updates and status clearly and frequently with peers and stakeholders through meetings, tracking tickets, code reviews, chats, and merge requests

Your Skills and Experience: 

• Hands-on Linux systems engineering, administration, and provisioning expertise applied at scale, preferably on bare-metal systems
• Configuration management at scale, preferably on bare-metal servers with Puppet and Hiera
• Python development for automation, APIs, design, testing, and debugging
• Ansible playbook authorship and complex task automation
• RPM design, build, publishing, and in-house repository management
• CI/CD pipelines, Git version control, branching and merging best practices
• Strong system and network troubleshooting with tools such as EBPF, tcpdump, strace, systemd, ntp/ptp, lsof, and nc
• Networking fundamentals: routing, DNS, TCP/UDP/multicast
• Experience building and publishing Docker images
• Working familiarity with Kubernetes
• Exposure to monitoring stacks such as Prometheus, Grafana, and AlertManager, with a focus on Linux telemetry and exporter development
• Bachelor’s degree in Computer Engineering or a related field, or equivalent professional experience

Join our forward-thinking team as a Network Engineer, where you will play a key role in designing, implementing, and supporting high-performance, low-latency network infrastructure.
At IMC, the Trading Infrastructure team is responsible for the WAN, LANs, and all low-latency connectivity to trading venues. You will work closely with Systems Engineers, internal teams, and external partners to deliver best-in-class solutions that support our trading business and help evolve our infrastructure to meet the demands of a dynamic industry.

Your Core Responsibilities:

• Design, implement and support the networking infrastructure. Key areas include Low-latency networking, Unicast and Multicast routing, OSPF, BGP, PIM SM, as well as things like QoS, STP, NAT, protocol tuning, etc.
• Monitor, guard and analyze the proper functioning of our network infrastructure. Take adaptive, retentive and corrective measures and perform structural maintenance.
• Proactively improve our infrastructure by contributing scripts and code to our automation efforts (e.g. Bash, Python).
• Accurately create and maintain documentation detailing the implemented network components, as well as relevant procedures and other documentation.
• Responsibility for our IT security related platforms. Key areas include Palo Alto firewalls, VPNs, Security policies, etc.
• Work flexible hours. We are proud of the uptime of the trading environment, so every now and then you will be working outside of regular business hours to apply critical changes. This could be from your desk, your couch at home or also inside of one of our datacenters abroad.
• Liaise with external vendors, exchanges and providers to explore new technology solutions, implement new services or troubleshoot problems.

Your Skills and Experience:

• 5+ years of experience as a Network Engineer, with a passion for all aspects of networking
• Proven ability to design, implement, and support high-performance networks
• Strong appetite for accuracy and willingness to go beyond standard textbook networking concepts
• Collaborative mindset with experience working closely across cross-functional teams
• Ability to motivate and encourage peers while maintaining a high technical standard
• Excellent verbal and written communication skills, including the ability to explain technical topics to both technical and non-technical stakeholders