Freelance Software Developer (Ruby) - AI Trainer

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!

LINK TO JOB POSTING DOC: https://docs.google.com/document/d/e/2PACX-1vQ2eHIedyLv8bdqmUhvMZsKTb3L-xmmdMtxrG8yd28yhQSX29Q5QA3IbN5befY-zpqFu3rGsq22VIiy/pub -------------------------------------------------------------- CENTRAL OHIO SERVICE & SYSTEMS SPECIALIST – JOB DESCRIPTION POSITION OVERVIEW: We are seeking a highly motivated and experienced Central Ohio Service & Strategy Specialist to serve as BOTH the strategic/organizational leader and on-site project/service leader for the Central Ohio region. This role is the primary standard-bearer for both strategy and on-site delivery, combining leadership responsibilities with hands-on execution. The position requires extensive experience in both leadership/strategy and operational/technical domains. KEY FOCUS AREAS: Develop and execute strategy for client service and internal process improvement Lead and execute projects from scoping to completion Oversee and deliver on-site technology and client-facing service Organize meetings, set agendas, and follow up on action items Design, document, and implement systems and processes Manage internal and external communications, escalations, and planning NECESSARY SOFTWARE KNOWLEDGE: Ticketing & IT Service Management (ConnectWise, ServiceNow, SuperOps, etc.) Documentation & Collaboration (Confluence, SharePoint, Google Workspace, Office 365) Remote Support (TeamViewer, LogMeIn, AnyDesk, Microsoft RDP) Cybersecurity Tools, endpoint protection, MFA, CMMC 2.0 practices a plus Networking & Monitoring (PRTG, SolarWinds, Ubiquiti, Meraki) CRM & Communication (Salesforce, HubSpot, Slack, Teams, Zoom) LOCATION REQUIREMENT: Must be located in Central Ohio Regular on-site client visits throughout Central Ohio; home-based role with travel CORE RESPONSIBILITIES: Design, implement, and maintain operational systems and standardized workflows Develop and document business processes; create process automation where applicable Establish and track metrics/KPIs; lead process improvement (Kaizen, ‘5 Whys’, PSDA, etc.) Initiate regular client updates; create communication schedules and alerts Organize, lead, document, and follow up on meetings and action items Collaborate on escalations; ensure thorough documentation and process follow-through Own project deliverables and tracking from start to finish Provide hands-on technical support during on-site visits (network cabling, equipment moves up to 50+ lbs, etc.) REQUIRED QUALIFICATIONS: Must be based in Central Ohio 5+ years in both leadership/strategy AND operational/technical roles (not entry level) Demonstrated abilities in strategic planning, team leadership, and hands-on delivery Strong understanding of IT systems and business processes Excellent written and verbal communication Able to manage multiple projects, work independently and directly with clients DESIRED QUALIFICATIONS: Experience with process improvement methodologies and project management Technical certifications relevant to IT service delivery Familiarity with automation tools, AI, and operational challenges KEY SUCCESS INDICATORS: Operational systems implemented and maintained successfully Consistent proactive, effective communication Clear meeting outcomes and documentation Reliable completion of projects within timelines High client satisfaction and process ownership OUR COMPANY CULTURE: We lead with kindness, act with honesty, and are committed to always giving our best. Our team thrives on curiosity, creative solutions, and a constant drive to improve – for our clients and each other. COMPENSATION & BENEFITS: $27–$40/hr, part-time (approx. 20-30 hrs/week, 9 a.m. to noon core hours, flexibility required) Full medical, vision, dental 401(k) with 4% company contribution Mileage reimbursement at $0.30/mile for on-site work Growth opportunity in a dynamic, supportive environment HOW TO APPLY: Click link at top to see application info.

Eagle Seven is seeking a Senior Software Developer focused on exchange connectivity and market data.  The individual will be responsible for analyzing exchange protocols, proposing design solutions, and implementing connectivity to trading venues across the world. The role be a part of the platform development team and will provide the individual with exposure to traders and strategy developers. The successful candidate will be a self-starter, have strong sense of ownership and be driven to provide technical and intellectual solutions to business problems.    Primary Responsibilities include: Architecting and implementing low-latency market access solutions Understanding, interpreting, and interfacing with global exchanges and their protocols Designing, developing, and supporting market data feed handlers and exchange order routers Diagnosing latency issues and resolving with appropriate tuning and optimizations Working with traders to source, evaluate and facilitate access to new data sources Working with extended team to capture, house, and provide historical access to market data Liaise with vendors on data and technical issues as needed to deliver rapid solutions to the business Requirements Skills and Experience: Bachelor’s degree in Computer Science or related field Proven track record of understanding and working with global exchange protocols Experience with writing parsers for exchange protocols such as FIX and ITCH, etc. Strong background in C++ and C++ Template metaprogramming with demonstrated experience using C++14/C++20 Expertise with TCP/IP, UDP multicast, sockets, network protocols, particularly on Linux/Unix systems Experience using network tools such as Wireshark and TCPDump to monitor and debug behavior Ability to work in a collaborative environment Excellent written and verbal communication skills Benefits Eagle Seven offers a competitive and comprehensive benefits package to all full-time employees. Medical PPO and HMO coverage through BlueCross BlueShield Company Contributions to a Health Savings Account (with enrollment into a High Deductible Health Plan) Dental coverage through Principal Vision coverage through VSP 401k Retirement Savings Plan with Employer Match Company Paid Life Insurance Company Paid Disability Insurance Paid Time Off Flexible Spending Account Pre-tax Transit Benefits Complimentary Lunch and Beverages The minimum base salary for this role starts at $150,000. This role is eligible for a discretionary performance bonus as part of the total compensation package, in addition to the benefits listed above. Exact compensation offered may vary based on factors including, but not limited to, the candidate's experience, qualifications, and skill set.

Management of a transportation repair facility, both retail and fleet.

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

HOW TO APPLY PLEASE CLICK HERE TO APPLY We maintain a rigorous hiring process to help ensure we only hire the best and most dedicated professionals. Please note that you will not be considered for this position if you fail to follow the instructions when applying. WHY YOU SHOULD APPLY Coalition Technologies is devoted to delivering clients the highest quality work while providing our team a fun, thriving, and innovative environment. Along with the opportunity for tremendous career growth and rapid advancement, CT offers: The most competitive profit-sharing bonus plan in the industry, paying up to 50% of company profits to full-time employees each month! A highly competitive Paid Time Off plan, promoting quality work-life balance. Subsidized gym memberships to help team members feel their best. Medical, dental, vision, and life insurance packages for all US-based team members. International Health Insurance Reimbursement Program for all international team members, a benefit unique to Coalition. Device upgrade and learning reimbursement programs. Motivating career development plans with clearly defined goals and rewards. Additional job-specific incentives and bonuses. Plus, 100% of our team works remotely with the support of time tracking software. Our company culture specializes in supporting remote team members, and we’ve been doing so for more than a decade. CT welcomes your application, wherever in the world it's coming from! YOU SHOULD HAVE: An expertise in HTML5, CSS3, and jQuery. A thorough understanding of cross-browser compatibility issues. Experience with media queries. A knowledge of CSS platforms such as Twitter’s Bootstrap. An ability to multi-task on multiple projects and tasks at the same time. Great attention to detail and a highly organized work style. A positive and upbeat attitude with the ability to learn quickly. Proficiency in PHP/MYSQL and AJAX (preferred). Experience with WordPress, BigCommerce, Magento, and Shopify (preferred). Excellent written and spoken English. The availability to work 40 hours per week from 9:00 am to 6:00 pm PST. The ability to adapt to a diverse and multicultural environment. The passion to build a startup. A reliable workstation with a fast computer, microphone, and speakers, reliable internet and power if working remotely. YOUR DUTIES AND TASKS: Transforming complex layout PSDs into pixel-perfect presentation-layer HTML5/CSS3 templates. Creating responsive website designs. Building websites with WordPress, extending and developing plugins and themes. Working with Photoshop, Illustrator, and Fireworks to create images optimized for the web. Working with version control systems such as GIT / SVN. Working under tight deadlines. Handling multiple projects at the same time. Producing high quality of work with a strong focus on detail. MORE INFORMATION Our search engine optimization (SEO) team is a group of highly specialized experts who know how to drive traffic and revenue online. We work with Google Ads, Bing AdCenter, organic search, PPC, SEM, conversion optimization, online marketing, digital marketing, social media management, email marketing, etc. This position will include skills and roles project management, process management, supervisor, project coordinator, project manager, trainer, engagement manager, and more. HOW TO APPLY PLEASE CLICK HERE TO APPLY California, New York, Washington, and Colorado: starting base pay for this position ranges between $15 - $35 per hour. Compensation may vary based on factors such as experience, qualifications, skills test performance, geographic location, and seniority of the position offered. Outside of California, New York, Washington, and Colorado compensation may fall outside the above ranges.