Data Scientist

Trexquant is a growing systematic fund at the forefront of quantitative finance, with a core team of highly accomplished researchers and engineers. To keep pace with our expanding global trading operations, we are seeking a C++ Market Data Engineer to design and build ultra-low-latency feed handlers for premier vendor feeds and major exchange multicast feeds. This is a high-impact role that sits at the heart of Trexquant's trading platform; the quality, speed, and reliability of your code directly influence every strategy we run. Responsibilities Design & implement high-performance feed handlers in modern C++ for equities, futures, and options across global venues (e.g., NYSE, CME, Refinitiv RTS, Bloomberg B-PIPE). Optimize for micro- and nanosecond latency using lock-free data structures, cache-friendly memory layouts, and kernel-bypass networking where appropriate. Build reusable libraries for message decoding, normalization, and publication to internal buses shared by research, simulation, and live trading systems. Collaborate with cross-functional teams to tune TCP/UDP multicast stacks, kernel parameters, and NIC settings for deterministic performance. Provide robust failover, gap-recovery, and replay mechanisms to guarantee data integrity under packet loss or venue outages. Instrument code paths with precision timestamping and performance metrics; drive continuous latency regression testing and capacity planning. Partner closely with quantitative researchers to understand downstream data requirements and to fine-tune delivery formats for both simulation and live trading. Produce clear architecture documents, operational run-books, and post-mortems; participate in a 24×7 follow-the-sun support rotation for mission-critical market-data services. Requirements BS/MS/PhD in Computer Science, Electrical Engineering, or related field. 3+ years of professional C++ (14,17,20) development experience focused on low-latency, high-throughput systems. Proven track record building or maintaining real-time market-data feeds (e.g., Refinitiv RTS/TREP, Bloomberg B-PIPE, OPRA, CME MDP, ITCH). Strong grasp of concurrency, lock-free algorithms, memory-model semantics, and compiler optimizations. Familiarity with serialization formats (FAST, SBE, Protocol Buffers) and time-series databases or in-memory caches. Comfort with scripting in Python for prototyping, testing, and ops automation. Excellent problem-solving skills, ownership mindset, and ability to thrive in a fast-paced trading environment. Familiarity with containerization (Docker/K8s) and public-cloud networking (AWS, GCP). Benefits Competitive salary, plus bonus based on individual and company performance. Collaborative, casual, and friendly work environment while solving the hardest problems in the financial markets. PPO Health, dental and vision insurance premiums fully covered for you and your dependents. Pre-Tax Commuter Benefits  Trexquant is an Equal Opportunity Employer

Job Title: Senior System/Network Engineer Location: Novato, CA Job Type: Full-Time About Us: Marin IT, Inc. is a leading Managed Service Provider (MSP) dedicated to delivering exceptional IT support and services to a diverse range of clients. We specialize in providing comprehensive IT solutions, including system and network management, cybersecurity, cloud services, and more. Our team is passionate about technology and committed to delivering top-notch service and support. Position Overview: We are seeking an experienced and highly skilled Senior System/Network Engineer to join our dynamic team. The ideal candidate will have a strong background in managing and optimizing complex IT infrastructures, with a focus on delivering exceptional service to our clients. This role requires a deep understanding of networking, server administration, virtualization, and security. The Senior System/Network Engineer will work closely with our clients to design, implement, and maintain their IT environments, ensuring optimal performance and security. Key Responsibilities: • Design, deploy, and maintain complex network and system infrastructures for our clients. • Manage and support a variety of IT environments, including on-premises, cloud, and hybrid systems. • Troubleshoot and resolve advanced technical issues related to network and system performance, security, and connectivity. • Implement and manage security protocols and best practices to protect client data and systems. • Conduct regular system and network performance monitoring, analysis, and optimization. • Provide expert-level technical support and guidance to clients and internal teams. • Lead projects to upgrade and migrate systems, ensuring minimal disruption to client operations. • Develop and maintain comprehensive documentation of client environments, configurations, and procedures. • Stay up-to-date with emerging technologies and industry trends to provide innovative solutions to clients. • Mentor and support junior engineers, fostering a collaborative and knowledge-sharing environment. Qualifications: • Bachelor’s degree in Computer Science, Information Technology, or a related field (or equivalent experience). • Minimum of 5 years of experience in system and network engineering, preferably in an MSP environment. • Proficiency in managing and troubleshooting Windows and Linux servers, network infrastructure (routers, switches, firewalls), and virtualization technologies (VMware, Hyper-V). • Strong understanding of TCP/IP, DNS, DHCP, VPNs, and other networking protocols and services. • Experience with cloud platforms such as AWS, Azure, or Google Cloud. • In-depth knowledge of cybersecurity best practices, including firewalls, antivirus, IDS/IPS, and data encryption. • Excellent problem-solving skills and the ability to work under pressure to meet deadlines. • Strong communication and interpersonal skills, with the ability to interact effectively with clients and team members. • Relevant certifications such as CCNA, CCNP, MCSA, MCSE, VCP, or equivalent are highly desirable. Benefits: • Competitive salary and performance-based bonuses. • Comprehensive health, dental, and vision insurance. • Retirement savings plan with company match. • Professional development opportunities and reimbursement for certifications. • A supportive and collaborative team environment.

Founded in 2016 in Silicon Valley, Pony.ai has quickly become a global leader in autonomous mobility and is a pioneer in extending autonomous mobility technologies and services at a rapidly expanding footprint of sites around the world. Operating Robotaxi, Robotruck and Personally Owned Vehicles (POV) business units, Pony.ai is an industry leader in the commercialization of autonomous driving and is committed to developing the safest autonomous driving capabilities on a global scale. Pony.ai’s leading position has been recognized, with CNBC ranking Pony.ai #10 on its CNBC Disruptor list of the 50 most innovative and disruptive tech companies of 2022. In June 2023, Pony.ai was recognized on the XPRIZE and Bessemer Venture Partners inaugural “XB100” 2023 list of the world’s top 100 private deep tech companies, ranking #12 globally. As of August 2023, Pony.ai has accumulated nearly 21 million miles of autonomous driving globally. Pony.ai went public at NASDAQ in Nov. 2024. Responsibility The ML Infrastructure team at Pony.ai provides a set of tools to support and automate the lifecycle of the AI workflow, including model development, evaluation, optimization, deployment, and monitoring. As a Machine Learning Engineer in ML Runtime & Optimization, you will be developing technologies to accelerate the training and inferences of the AI models in autonomous driving systems. This includes: Identifying key applications for current and future autonomous driving problems and performing in-depth analysis and optimization to ensure the best possible performance on current and next-generation compute architectures. Collaborating closely with diverse groups in Pony.ai including both hardware and software to optimize and craft core parallel algorithms as well as to influence the next-generation compute platform architecture design and software infrastructure. Apply model optimization and efficient deep learning techniques to models and optimized ML operator libraries. Work across the entire ML framework/compiler stack (e.g.Torch, CUDA and TensorRT), and system-efficient deep learning models. Requirements BS/MS or Ph.D in computer science, electrical engineering or a related discipline. Strong programming skills in C/C++ or Python. Experience on model optimization, quantization or other efficient deep learning techniques Good understanding of hardware performance, regarding CPU or GPU execution model, threads, registers, cache, cost/performance trade-off, etc. Experience with profiling, benchmarking and validating performance for complex computing architectures. Experience in optimizing the utilization of compute resources, identifying and resolving compute and data flow bottlenecks. Strong communication skills and ability to work cross-functionally between software and hardware teams Preferred Qualifications: One or more of the following fields are preferred Experience with parallel programming, ideally CUDA, OpenCL or OpenACC. Experience in computer vision, machine learning and deep learning. Strong knowledge of software design, programming techniques and algorithms. Good knowledge of common deep learning frameworks and libraries. Deep knowledge on system performance, GPU optimization or ML compiler. Compensation and Benefits Base Salary Range: $140,000 - $250,000 Annually Compensation may vary outside of this range depending on many factors, including the candidate’s qualifications, skills, competencies, experience, and location. Base pay is one part of the Total Compensation and this role may be eligible for bonuses/incentives and restricted stock units. Also, we provide the following benefits to the eligible employees: Health Care Plan (Medical, Dental & Vision) Retirement Plan (Traditional and Roth 401k) Life Insurance (Basic, Voluntary & AD&D) Paid Time Off (Vacation & Public Holidays) Family Leave (Maternity, Paternity) Short Term & Long Term Disability Free Food & Snacks

SUMMARY Responsible for following both ChemStation food safety and food hygiene practices and rules, the Service Technician gains access to the customer’s facility to inspect, perform equipment installation and maintenance, and at times safely dispense cleaning agents and processing aids that were ordered while following agreed upon practices from the customer. PRIMARY DUTIES & RESPONSIBILITIES This list of duties and responsibilities is not all inclusive and may be expanded to include other duties and responsibilities as management may deem from time to time. *Food safety or quality responsibilities within job. All staff are responsible for reporting food safety and quality issues to those that can initiate action. • Inspects all customer installed lines and bulk containment units for any damage, tampering or potential safety issues • Calibrates Customer dispensing systems on a periodic basis • Ensures all Telemetry units are functioning properly • Ensures tank materials are correctly dispensed at time of service • Provides Customer with system and area improvements, when required • All staff are responsible for reporting food safety and quality issues to those that can initiate action. • Perform other duties as assigned. ** MECHANICAL APPTITUDE NEEDED

Atto Trading, a dynamic quantitative trading firm founded in 2010 and leading in global high-frequency strategies, is looking for a Low-Latency Developer to join our team. We are expanding an international, diverse team, with experts in trading, statistics, engineering, and technology. Our disciplined approach combined with rapid market feedback allows us to quickly turn ideas into profit. Our environment of learning and collaboration allows us to solve some of the world’s hardest problems, together. As a small firm, we remain nimble and hold ourselves to the highest standards of integrity, ingenuity, and effort.  Position Highlights: We are modernizing our trading and research platform to scale our alpha trading business. This platform will enable researchers to explore, test, and deploy sophisticated signals, models, and strategies across asset classes in a robust, fully automated manner while maintaining competitive latency targets. As a Low-Latency Developer, you will be responsible for designing, optimizing, and maintaining high-performance trading systems to minimize latency. Your Mission and Goals: Analyze and optimize the performance of low-latency trading systems by identifying bottlenecks and inefficiencies in the code, and implementing effective solutions.  Develop and adapt the platform to support the demands of a fast-paced trading environment, while effectively managing technical debt. Requirements Over 5 years of experience as a low-latency developer with a focus on performance optimization in a high-frequency trading (HFT) environment. Experience with multiple components of an HFT platform or system, particularly those on the critical path. Experience working at an HFT firm during its startup phase and/or on a trading team is a significant plus. Technical Skills: Deep knowledge of HFT platforms: networking, kernel bypass, market data, order entry, threading, inter-process communication, and strategy APIs. Proven low-latency development and performance optimization in HFT. Strong proficiency in C++. Excellent understanding of CPU caches and cache efficiency. Experience with multithreaded and multi-process synchronization. Good understanding of networking protocols. Skilled in performance profiling and optimization tools. Advanced knowledge of Linux operating systems, including kernel-level device mechanisms. About You: Practical decision-making skills. Excellent communication skills. Strong analytical and problem-solving skills. Passion for trading. Ability to work independently and as part of a team. Benefits Competitive rates of pay. Paid time off (5 weeks). Coverage of health insurance costs. Office lunches. Discretionary bonus system.  Annual base salary range of $150,000 to $300,000. Pay (base and bonus) may vary depending on job-related skills and experience. Our motivation: We are a company committed to staying at the forefront of technology. Our team is passionate about continual learning and improvement. With no external investors or customers, we are the primary users of the products we create, giving you the opportunity to make a real impact on our company's growth. Ready to advance your career? Join our innovative team and help shape the future of trading on a global scale. Apply now and let's create the future together!

**************************UPDATE NOW HIRING*********************** Virginia North preferred moving company (All My Sons Moving & Storage) is hiring. Looking for candidates with a strong work ethic. We are hiring drivers and helpers. Are you tired of sitting at a desk all day? Do you have a strong work ethic and a knack for lifting heavy objects? All My Sons Moving & Storage is looking for drivers and helpers to join our team in Springfield! We have immediate start dates available, so don't delay—text Jason at 571-545-3832 to schedule an interview today. As Springfield preferred moving company, we offer competitive pay with monthly bonuses. Drivers/Foremen can earn $20-$24 per hour, with additional bonuses, and tips while Helpers can earn $19-$23 per hour, plus tips. So, if you're ready to get moving (literally), text now and start earning that sweet, sweet cash! Text Jason at 469-816-7458 Come join the family! COME ON TO THE OFFICE TO APPLY OR CALL JASON OR JORDAN AT (469) 816-7458 or OFFICE (804) 455-7387 7642 DYNATECH COURT SPRINGFEILD, VA 22153 PAY: WEEKLY/PLUS WEEKLY TIPS Driver- $20-$24 (Monthly/weekly bonuses) Helpers- $19-$23 (Monthly/weekly bonuses) -Full time (5 days a week) -Must work their schedule consistently for 30 days (no unexcused absences, on time, and still have to be employed/working) -No accidents -Must maintain positive driver score of 900+ and be compliant with HOS/ELD Benefits- Medical Benefits (Health, Dental, Vision, Life Insurance) after 1050 hours. 401K after 60 days employment. Weekly and monthly bonuses. CONTRATANDO CONDUCTORES Y AYUDANTES AHORA! APLICAR HOY! CON MUCHO TRABAJO! VEN Y UNETE A NUESTRO EQUIPO ENVIA UN MENSAJE DE TEXTO AL NUMERO DE JASON A (469) 816-7458 O OFFICINA 804-455-7387 PARA PROGRAMAR UNA ENTREVISTA. AYUDANTES $19-$23 MAS PROPINAS CONDUCTORES $20-$24 APARTE PROPINAS 7642 DYNATECH COURT SPRINGFIELD, VA 22153 PASA POR LA OFFICINA CUALQUIER DIA ENTRE LAS HORAS 10AM-4PM!! ESPERAMOS A VERLOS PRONTO!!