SAP Payroll Technical

Job Title: Senior Full Stack Java Developer  Location: Washington, DC  Employment Type: Contract About Us:  DMV IT Service LLC is a trusted IT consulting firm, established in 2020. We specialize in optimizing IT infrastructure, providing expert guidance, and supporting workforce needs with top-tier staffing services. Our expertise spans system administration, cybersecurity, networking, and IT operations. We empower our clients to achieve their technology goals with a client-focused approach that includes online training and job placements, fostering long-term IT success. Job Purpose: As a Senior Full Stack Developer, you will play a vital role in developing cloud-native applications, building scalable APIs, and creating engaging user interfaces. You’ll work closely with cross-functional teams including Product Owners, Architects, and DevOps to deliver robust, high-performance solutions that support business objectives. Requirements Key Responsibilities Architect, develop, and sustain end-to-end web applications using Java, Spring Framework, Angular, and AWS technologies. Deliver high-quality, optimized code across both front-end and back-end components. Implement and manage Kafka for real-time data processing and event-driven systems. Design and maintain complex data models and perform advanced SQL queries to uphold data consistency. Collaborate with Product Owners to break down business requirements into actionable technical tasks. Conduct code reviews, provide mentorship to junior developers, and foster a culture of clean coding practices. Work within an Agile/Scrum environment, integrating CI/CD pipelines with tools like Git, Jenkins, and JIRA. Partner with architects and technical leads to ensure solutions align with architectural standards. Keep abreast of new technologies and provide insights on improving application performance, scalability, and reliability. Required Skills & Experience Proven expertise in Java and Spring Framework for backend development. Hands-on experience with Angular or similar JavaScript frameworks for front-end development. Strong knowledge of AWS cloud services and building cloud-native applications. Proficiency with Kafka for event streaming and data pipelines. Solid experience with complex SQL and data modeling. Familiarity with CI/CD tools such as Git, Jenkins, and project tracking with JIRA. Experience working in an Agile development setting. Excellent problem-solving abilities and collaboration skills. Strong communication skills to work effectively with cross-functional teams.

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

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!

This opportunity is only for candidates currently residing in the specified country. Your location may affect eligibility and rates. At Mindrift, innovation meets opportunity. We believe in using the power of collective intelligence to ethically shape the future of AI. What we do The Mindrift platform connects specialists with AI projects from major tech innovators. Our mission is to unlock the potential of Generative AI by tapping into real-world expertise from across the globe. About the Role GenAI models are improving very quickly, and one of our goals is to make them capable of addressing specialized questions and achieving complex reasoning skills. If you join the platform as an AI Tutor in Coding, you’ll have the opportunity to collaborate on these projects.  Although every project is unique, you might typically: Generate prompts that challenge AI. Define comprehensive scoring criteria to evaluate the accuracy of the AI’s answers. Correct the model’s responses based on your domain-specific knowledge. How to get started Simply apply to this post, qualify, and get the chance to contribute to projects aligned with your skills, on your own schedule. From creating training prompts to refining model responses, you’ll help shape the future of AI while ensuring technology benefits everyone. Requirements You have a Bachelor's or Master’s degree in Software Development, Computer Science, or other related fields.  You have at least 3 years of professional experience with Ruby. Code review experience is a must. Experience with AI projects is a plus. Your level of English is advanced (C1) or above. You are ready to learn new methods, able to switch between tasks and topics quickly and sometimes work with challenging, complex guidelines. Our freelance role is fully remote so, you just need a laptop, internet connection, time available and enthusiasm to take on a challenge. Benefits Why this freelance opportunity might be a great fit for you? Get paid for your expertise, with rates that can go up to $50/hour depending on your skills, experience, and project needs. Take part in a part-time, remote, freelance project that fits around your primary professional or academic commitments. Work on advanced AI projects and gain valuable experience that enhances your portfolio. Influence how future AI models understand and communicate in your field of expertise.

This opportunity is only for candidates currently residing in the specified country. Your location may affect eligibility and rates. At Mindrift, innovation meets opportunity. We believe in using the power of collective intelligence to ethically shape the future of AI. What we do The Mindrift platform connects specialists with AI projects from major tech innovators. Our mission is to unlock the potential of Generative AI by tapping into real-world expertise from across the globe. About the Role GenAI models are improving very quickly, and one of our goals is to make them capable of addressing specialized questions and achieving complex reasoning skills. If you join the platform as an AI Tutor in Coding, you’ll have the opportunity to collaborate on these projects.  Although every project is unique, you might typically: Generate prompts that challenge AI. Define comprehensive scoring criteria to evaluate the accuracy of the AI’s answers. Correct the model’s responses based on your domain-specific knowledge. How to get started Simply apply to this post, qualify, and get the chance to contribute to projects aligned with your skills, on your own schedule. From creating training prompts to refining model responses, you’ll help shape the future of AI while ensuring technology benefits everyone. Requirements You have a Bachelor's or Master’s degree in Software Development, Computer Science, or other related fields.  You have at least 3 years of professional experience with Rust. Code review experience is a must. Experience with AI projects is a plus. Your level of English is advanced (C1) or above. You are ready to learn new methods, able to switch between tasks and topics quickly and sometimes work with challenging, complex guidelines. Our freelance role is fully remote so, you just need a laptop, internet connection, time available and enthusiasm to take on a challenge. Benefits Why this freelance opportunity might be a great fit for you? Get paid for your expertise, with rates that can go up to $50/hour depending on your skills, experience, and project needs. Take part in a part-time, remote, freelance project that fits around your primary professional or academic commitments. Work on advanced AI projects and gain valuable experience that enhances your portfolio. Influence how future AI models understand and communicate in your field of expertise.

ABOUT US Do you have a passion for higher education? Do you want to make a positive impact on the college admissions process? Our staff help to remove barriers and encourage students to forge their path to a better future. Common App is a national not-for-profit organization dedicated to the pursuit of access, equity, and integrity in the college admission process. Each year we support more than 1 million students, one-third of whom are first-generation, as they apply to our nearly 1100 diverse member colleges & universities using the Common App's free online application.  If you have 5-8 years of experience in software development and want to be part of a mission-driven non-profit that uses innovative technology to advance the college admission process, Common App may be a great match for you. Common App is currently searching for a Senior Software Developer.  RESPONSIBILITIES Our senior software developer position reports to our Director of Software Development and is part of a team of developers designing and developing both web-based and mobile software products for Common App. Our Developers work in a team environment to assist in software architecture design and to implement high-quality software products that meet the needs of the Common App community. This position plans, develops, modifies, and tests software components using .NET technologies within an Amazon Web Service and Agile development environment to create new products and enhance existing software systems. Our software developers also assist in managing the production system to ensure quality in support of the end-user experience and may serve as mentors or provide direct guidance to other Software Developers. Requirements QUALIFICATIONS This role requires: Candidates must live in the United States. Bachelor’s degree in computer science or relevant field, or an equivalent combination of education and experience. 5-8 years of experience in software development Proficient in Angular.js 2+, Typescript, Microsoft .Net Core 2.0+, C#, Visual Studio IDE, ORM, HTML5, and CSS3, Micro Service Oriented Architecture using Web API. Proficient in managing state in Angular 2+ Applications. Proficient in SQL queries and stored procedures. Proficient in all components of the development process, including Code repository (GitHub) and branching strategy, Code review, Coding standards, Code deployment. Expected to evaluate and make recommendations based on complex Proof of Concepts. Understanding of OWASP Top 10 security vulnerabilities and secure coding practices. Strong communication (verbal and written) and team collaboration skills. Demonstrate a commitment to diversity, equity, and inclusion through continuous development, modeling inclusive behaviors, and proactively managing bias In partnership with leadership and HR, ensuring equitable practices and experiences to strengthening inclusion acumen, and promote a culture of inclusivity and belonging that embraces the contributions of all team members Actively participate in cross-organizational working groups and activities to support the development and maintenance of Common App culture. The ideal candidate will possess: AWS Cloud Services like DynamoDB, Elastic Cache, S3, Lambda. Proficient in managing state in Angular 2+ Applications using NGRX. Mobile hybrid frameworks like Ionic. CI/CD automation cloud experience. NET or AWS certification A passion for higher education is a plus.  PAY RANGE $115,000-$117,380 Benefits Common App is a virtual first environment. We value our employees’ time and efforts. Our commitment to your success is enhanced by our competitive salary and an extensive benefits package including:  Paid time off Vacation Leave (starting at 10 days per year) Sick Leave (15 days per year) Paid Holidays (New Year’s Day, Martin Luther King Jr. Day, Memorial Day, Juneteenth, July 4th, Labor Day, and Thanksgiving Day) Floating Holidays (9 days to be used at employee’s discretion) Mental Health Days (12 per year) Healthcare Medical (2 plan options with Cigna including an option for 100% employee coverage) Health Savings Account (HSA) with annual employer contribution starting at $1,500 or Flexible Spending Account (FSA), depending on plan election Dental (plan with MetLife offering 100% employee coverage) Vision benefits (plan with Cigna offering 100% employee coverage) Short + Long Term Disability (100% employer paid) Life + AD&D (100% employer paid) Additional Voluntary Life + AD&D insurance available Employee Assistance Program (EAP) Added compensation 403(b) Retirement Plan with 5% employer contribution + additional 5% employer match Stipends (virtual office set up and monthly remote work support) Future growth opportunities within the organization We work to maintain the best possible environment for our staff, where people can learn and grow. We strive to provide a diverse, collaborative, team-oriented, creative environment where each person feels encouraged to contribute to our processes, decisions, planning, and culture. HOW DO I APPLY To apply for this opportunity, send your resume and cover letter with salary expectations. PROTECTING YOUR PERSONAL INFORMATION: During the recruiting process, please note that Common App will never: Provide a job offer without an interview Ask for payment to process documents, purchase equipment or for any other reason Request banking or credit card information Direct you to third-party services to obtain visas or other documentation As we work alongside you through our recruitment process, please remain alert and never provide financial information or payment to anyone claiming to offer a job opportunity. If you believe you’re a victim of a job scam, report it to the Federal Trade Commission (FTC) or your state attorney general. To learn more about job scams, read the FBI’s public service announcement or visit the FTC site.