Senior Software Engineer

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!

Desktop Support Technician level I/II (temporary) needed for approximately 4 – 8 weeks. The work is to begin on or around September 29, 2025, and would include visiting various sites for our client, in and around the greater Sacramento, CA area. Mileage will be reimbursed at the federal rate. We are seeking a Desktop Support Technician on a temporary basis (for approximately 4 – 8 weeks) to complete Windows 11 upgrades and perform reimaging on laptops and desktops. This would include setting up users and some end user training as needed as well as possibly replacing hard drives. The hours would primarily be Monday – Friday 8:00 to 5:00 but might require afterhours work but would be rare if any. The candidates selected must have pervious Desktop Support experience in a business environment including: upgrading desktops and laptops to Windows 11, reimaging and end user training. This is an onsite position, and the person selected MUST have reliable personal transportation, be punctual and dependable with excellent professional customer service skills. They must also have a clean state and federal background check. This temporary position (for approximately 4 - 8 weeks) would begin on or about September 29, 2025. The hourly pay rate is $25 – $27 per hour. Candidates who meet the above criteria should attach a resume along with their current availability and desired hourly pay rate.

LDAP Software Engineer Location: Peru, IN Duration: Permanent role Responsibilities: * Work with upstream data source and downstream clients to resolve data related issues. * Assist in designing, developing, and implementing Data as A Service (DaaS) and support for microservices. * Perform data and log analysis. * Assist in designing, developing, and implementing flexible LDAP architecture for PaaS and SaaS applications. * Performance periodic maintenance as/when required. Requirements: * Performance periodic maintenance as/when required. * Assist in designing, developing, and implementing flexible LDAP architecture for PaaS and SaaS applications. * Work with upstream data source and downstream clients to resolve data related issues. * Assist in designing, developing, and implementing Data as A Service (DaaS) and support for microservices. * Perform data and log analysis. * Advanced knowledge of LDAP directories based on OpenDJ, Oracle (sun) or ForgeRock directories. * Expert in maintaining, troubleshooting issues in production environment. * Experience in installing and configuring Oracle DSEE 11g & OpenDJ, ForgeRock DS. Required Software Skills: * Directory Services (LDAP, MS Active Directory, MS Entra ID), including Group Policy, DNS, and DHCP Exchange / M365 * VMware vSphere/vCenter * Server and PC operating systems including Windows OS's and Linux * Citrix DaaS, and related components * Microsoft SQL Server and/or Oracle SQL along with database management utilities Recommended Working Knowledge * PowerShell * Git (GitHub / Gitlab) * TCP/IP * Networking OSI mode

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A Software Engineer designs, develops, enhances, verifies, and releases high-quality User interfaces for wireless network applications which, upon release, satisfy critically important national mission requirements. Specific duties include: Git-based distributed version control Agile-based project development Analyze operational requirements and foundational platform integration requirements to design and derive capability functional and quality requirements Low-level debugging of software and system defects Design and implement software solutions within the Flutter Framework C++ and Python based back-end development Experience with designing and consuming backend APIs Write or review software and system documentation Implementation of Test-driven methodologies and participation developing and executing test procedures Clearly communicating in a team environment with fellow engineers, stakeholders, and customers Requirements Bachelor’s degree in computer science or related discipline from an accredited college or university is required, and at least fourteen (14) years of experience as a Software Engineer, in programs and projects of similar scope, type, and complexity is required, with 2+ years’ experience in User Interface development, preferably in Flutter/Dart Four (4) years of additional SWE experience on projects with similar software processes may be substituted for a bachelor’s degree. Familiarity with Wifi standards and protocols, commercial Wifi cards, Digital Signal Processing (DSP), and Software Defined Radios a plus Clearance: Active TS/SCI with an appropriate current polygraph is required to be considered for this role; Ability to receive privileged access rights. Benefits Eligibility requirements apply. Employer-Paid Health Care Plan (Medical, Dental & Vision) Retirement Plan (401k, IRA) with a generous matching program Life Insurance (Basic, Voluntary & AD&D) Paid Time Off (Vacation, Sick & Public Holidays) Short Term & Long Term Disability Training & Development Employee Assistance Program

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