Melville Developers/Programmers Job Listings

C++ Market Data Engineer63846019810817120

Workable

C++ Market Data Engineer

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

Stamford, CT, USA

Negotiable Salary

Senior Salesforce Developer63392069017345121

Workable

Senior Salesforce Developer

7+ years of experience on Salesforce platform and implementation experience Primary Skill & Exp: 1. Must have handled a minimum of 8-10 implementations around sales, service cloud for large enterprises that involved significant customizations using the force.com platform. 2. Deep and extensive knowledge, experience of force.com technical platform including apex, triggers, batch Apex, Lightning component framework etc. Knowledge of advanced lightning components, Chatter API etc. 3. Minimum 3.5 years of lightning implementation experience 4. Good knowledge of salesforce recommended best practice around design and development. 5. Must possess at least one developer certification. 6. Extensive experience working in an onsite/offshore model. 7. Solid understanding of Object-Oriented development and design, experience in using design patterns and ability to right clean, well-refactored maintainable code. 8. Experience on Salesforce1, Salesforce mobile will be an added advantage 9. Experience in integrating SFDC with SAP, Oracle, and/or Microsoft Dynamics 10. Experience using GIT and VS CODE in DEV OPS process. Responsibilities: 1. Technical Design and Delivery of Salesforce.com applications. 2. Technical thought leader for the Capgemini salesforce practice 3. In collaboration with the functional team, blueprint the technical design for the salesforce application considering all the functional, technical, non-functional and integration needs of the application. 4. Responsible for code reviews, performance tuning, and troubleshooting during the project process. 5. At the end of the test phase, responsible for delivering a fully working technical solution to the project manager and client.

Stamford, CT, USA

Negotiable Salary

Lead Software Engineer, Trading Systems63499943190017122

Workable

Lead Software Engineer, Trading Systems

About BestEx Research BestEx Research is a financial technology and research firm specializing in building sophisticated execution algorithms and transaction cost modeling tools servicing multiple asset classes. The firm provides its services to performance-demanding hedge funds, CTAs, asset managers, and banks through a traditional electronic broker and in a broker-neutral Software as a Service (SaaS) model. BestEx Research’s mission is to become the leader in automation and measurement of execution across asset classes globally and significantly reduce transaction costs for our clients. Its cloud-based platform, Algo Management System (AMS), is the first end-to-end algorithmic trading solution for equities, futures, and foreign exchange that delivers an entire ecosystem around execution algorithms, including transaction cost analysis (TCA), an algo customization tool called Strategy Studio, a trading dashboard, and pre-trade analytics in a single platform. The platform is currently live for US equity and global futures trading. BestEx Research is disrupting a $100 billion industry by challenging the status quo of stale, black-box solutions from banks and offering next-generation execution algorithms that combine performance improvement with transparency and customization. BestEx Research uses leading-edge technology to support its low-latency, highly scalable research and trading systems with its back end in C++, research libraries in C++/Python and R, and web-based technologies for delivering its front-end platforms. Visit bestexresearch.com for more information about our mission, products, research, and services. Why work at BestEx Research? If you want to help investors reduce their trading costs in an incredibly complex market structure and help create and shape an industry-defining product, then this is an excellent opportunity to join an incredibly talented team of 50+. BestEx Research has almost zero turnover, top notch clients, zero bureaucracy, and a flat organizational structure. It is a true meritocracy, set in a collaborative environment, where every employee is working on extraordinarily interesting projects. Compensation may be in the form of cash compensation or a hybrid cash and equity compensation plan. Employees at BestEx Research receive a lot of autonomy and accountability and have exposure to much more variety in the projects they complete and opportunities for growth than in similar roles at other firms. Location: Stamford, CT/New York, NY Our Stamford, CT is conveniently located in Stamford downtown and walking distance from train station. Free vale parking, Gym and other amenities are available. Some flexibility to work from home is available depending on your location but at least three days a week work from office is a requirement. Primary Job Responsibilities In this role, you will be responsible for architecture, design, and software development of various software components such as our core trading system, algo trading framework, execution algorithms, smart order routers, exchange simulators, market data adaptors and exchange connectivity adaptors. Projects will vary from developing software from scratch (for example implementing a new asset class or a new execution algorithm) to enhancing the current system to support new features or improving performance. Our trading software stack is written in C++ 17. Requirements For this role following are required: ● Expert-level knowledge of C++ and excellent software design skills ● Expert-level knowledge of TCP/IP and multithreading ● Excellent problem solving and analytical skills ● Excellent communication skills and ability to articulate ideas ● An attitude of constant curiosity and growth, as well as the ability and desire to mentor others ● Degree in Computer Science or similar field from a reputable institution The following are not required, but a combination of these skills and experiences is highly desirable: ● Prior experience working with market data, FIX, and other exchange connectivity protocols ● Prior experience developing trading systems or execution algorithms ● Experience with knowledge of relational databases, database optimizations and SQL ● Experience with Python/R, ability to work with large datasets in a research environment Benefits 4 weeks of vacation, healthcare and 401K

Stamford, CT, USA

Negotiable Salary

Workable

Dot Net developer

Job Description Dot Net developer with 5-7 years of hands-on development experience . Role involves working directly with clients to understand business requirements and deliver solutions. Collaborating closely with business stakeholders and offshore teams to ensure seamless communication and successful project execution. Requirements: 5-7 years of hands-on experience in DotNet development, with profiency in C#, VB.Net. Strong understanding of the .NET framework, including ASP.NET, ASP.NET Core, and related technologies. Proficiency in database design and SQL, with experience in SQL Server or other database technologies. Experience with web development technologies, including ASP.NET, MVC, APIs, and potentially front-end technologies like HTML, CSS, JavaScript Experience in client-facing roles, with the ability to translate business requirements into technical solutions. Collaborating with business and offshore teams to deliver successful projects. Troubleshoot and resolve complex technical issues in a timely manner. Participate in code reviews, ensuring high standards of quality, performance, and security. Contribute to the architecture and design of software solutions in line with industry best practices. Strong knowledge of software development life cycle, Agile methodologies, and version control systems (e.g., Git). Excellent problem-solving skills and attention to detail. Strong communication skills, with the ability to engage with both technical and non-technical stakeholders. Preferred Skills: Experience with microservices architecture. Knowledge of cloud platforms like AWS, Azure, or Google Cloud. Familiarity with DevOps practices and CI/CD pipelines.

Englewood Cliffs, NJ 07632, USA

Negotiable Salary

Workable

Data Engineer (USA)

Trexquant is a growing systematic fund manager with a core team of highly accomplished technologists. We apply a wide variety of statistical and machine learning techniques to build investment portfolios and trade our client assets in global equity and futures markets. With locations in the US, China and India, our global team in excess of 50 employees is comprised primarily of research professionals with advanced science, math and technology degrees who explore the universe of quantitative methods for opportunities to enhance and adapt our platform and profit in an exciting and dynamic environment. We are seeking a dedicated and detail-oriented Data Engineer to join our team. The primary goal of this team is to assist researchers in writing, downloading and reading scripts, effectively translating their ideas into data variables for trading purposes. The ideal candidate will have a strong background in data engineering, excellent scripting skills, and a keen understanding of financial data and trading strategies. Responsibilities Collaborate with researchers to understand their data requirements and trading strategies. Develop and maintain scripts for downloading, reading, and processing data from various sources. Ensure data accuracy, consistency, and reliability by implementing quality control measures. Optimize data retrieval processes for efficiency and performance. Assist in the integration of new data sources and formats into the existing data infrastructure. Provide technical support and troubleshooting for data-related issues. Document data workflows, processes, and scripts for future reference and knowledge sharing. Stay updated with industry trends and advancements in data engineering and financial data. Requirements A degree in a technical discipline (computer science, mathematics, statistics, physics, etc.) 1+ years of experience in Python as used in data capacity Experience in financial services and working with financial data providers is a plus Ability to work independently and take projects to completion, quickly learn new systems, think creatively and pay attention to details Benefits Competitive salary plus bonus bonus based on individual and company performance Collaborative, Casual, and friendly work environment PPO Health, dental and vision insurance premiums fully covered for you and your dependents Pre-tax commuter benefits Weekly company meals Trexquant is an Equal Opportunity Employer

Stamford, CT, USA

Negotiable Salary

Document Specialist (SQL, C#)63499817556481125

Workable

Document Specialist (SQL, C#)

WeSuite is seeking a full-time Document Engineer as part of its White Plains, NY based team. Job Responsibilities include: Use of WeSuite’s Document Editor to create and program client proposal and contract documents. Creation and programming of client custom documents for use within WeSuite software. Direct interaction with WeSuite clients during new system deployment and for changes post deployment to: confirm and complete the scope of work provide guidance to clients by answering questions and providing the best solutions to meet their needs within the software load and test documents with and for clients complete projects through client approval Assist the WeSuite Client Deployment and Support teams as needed for resolution of client reported issues related to their proposal, contract, and report documents Work with clients via remote connected sessions, phone, and email. Troubleshooting: review/resolve reported issues, analyze ‘bugs’ to find root cause and resolve or detail for correction by development team. Documentation: utilize Monday.com and other company tools to document project tasks, update, and monitor projects, through completion, including documentation of use by clients. Communication: coordinate and conduct project meetings with clients, provide technical expertise, document all follow-up, next steps, and completion. Be an excellent communicator, both written and verbal communications, throughout the project. Collaboration: Build rapport by working with clients and other WeSuite team members to create and maintain excellent relationships. Work with Clients to create, program, deploy, and test Client documents within the software application. Daily Interaction with: Account Executives, Clients, Project Management, Client Support, Quality Assurance, and Development team members. Technical Skills: SQL database, C#, HTML skills required to program automation of data, formulas, etc. specific to client documents (proposals, contracts, custom reports) within the WeSuite applications. Write articles and documentation to publish in the WeSuite Knowledge Base to assist clients in learning about WeSuite Document feature sets and use of the software. Become an expert in the configuration and use of WeSuite software, tools and systems to provide the highest quality of work possible. Requirements Relevant Experience & Required Skillsets: · SQL Server and database · Writing SQL queries · Use of Crystal Reports to create and program documents · C# · HTML · Microsoft Windows environment · Monday.com, Zen Desk, Excel, Word · 3 years plus direct enterprise software application support Additional Skillsets Required: · Technical troubleshooting and resolution of issues · Excellent communication skills, both written and verbal · Project management, project leadership skills and experience · Active support and interaction with clients at all levels

White Plains, NY, USA

Negotiable Salary

Freelance Software Developer (Rust) - Quality Assurance (AI Trainer)63393513679619126

Workable

Freelance Software Developer (Rust) - Quality Assurance (AI Trainer)

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: Code generation and code review Prompt evaluation and complex data annotation Training and evaluation of large language models Benchmarking and agent-based code execution in sandboxed environments Working across multiple programming languages (Python, JavaScript/TypeScript, Rust, SQL, etc.) Adapting guidelines for new domains and use cases Following project-specific rubrics and requirements Collaborating with project leads, solution engineers, and supply managers on complex or experimental projects 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 degree in Computer Science, Software Engineering, or related field. You have at least 3 years of professional experience with Rust and hands-on experience with Rust testing tools (e.g., cargo test, property-based testing with quickcheck). Familiarity with Rust tooling (Cargo, Clippy, rustfmt), module and crate management. Experience with code review, quality analysis, and identifying/fixing code smells and type issues⁠ Familiar with test integration in CI/CD environments. Experience using, integrating, or tutoring others with AI solutions or LLMs in Rust/test automation contexts. 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.

N 1st St, Brooklyn, NY, USA

$50