Senior Software Engineer II

At Forge, we recognize that our team is our most valuable asset. As pioneers in the private market technology sector, our mission is to create a future that offers greater opportunities for all. We embody this mission through our core values of being bold, accountable, and humble. Each day, we witness the impact of our vision as we support the teams behind the most remarkable innovations of our time, spanning from space exploration to artificial intelligence and beyond.Offering liquidity solutions, exclusive data and insights, a custody service, and a dynamic marketplace, Forge aims to establish a state-of-the-art technology infrastructure that enables a global private market that is transparent, accessible, and seamless for companies, their employees, and investors. Through our platform, employees can liquidate their private shares, companies can provide pre-IPO liquidity to their shareholders, and both individual and institutional investors can engage in the growth of private unicorns.Forge's unique global marketplace meets the increasing demand from individual and institutional investors seeking exposure to private company equities, fostering a growing network effect.Our capacity to deliver these impactful financial solutions has sparked significant interest from investors, attracted demand from clients, and created a pressing need to expand our team to serve more companies, teams, and innovators.The Role: As a Senior Software Engineer II specializing in trading engineering, you will be instrumental in delivering a high-performance trading platform that underpins the trading functionalities within the Forge Marketplace. You will identify opportunities to enhance trading products, including the integration of cutting-edge low-latency technologies, and play a key role in shaping the direction and roadmap of trading engineering initiatives.You will work closely with Product, Design, and Engineering teams to ensure smooth integration of trading technologies into products, thereby enhancing user experiences and application performance.Location: This role requires 2-3 days a week in-office in Soho, NY.

Join Atto Trading, a pioneering quantitative trading firm established in 2010, at the forefront of high-frequency trading strategies. We are actively seeking a C++ Software Engineer to enhance our dynamic team in New York.Our diverse and international team comprises experts in trading, statistics, engineering, and technology. Our unique blend of disciplined strategies and swift market feedback enables us to transform innovative ideas into profitable outcomes. Here at Atto, we foster an environment of continuous learning and collaboration, allowing us to tackle some of the most complex challenges in the industry together. As a small firm, we pride ourselves on our agility and commitment to integrity, creativity, and hard work.Position Highlights:As we modernize our trading and research platform to expand our alpha trading operations, you will play a pivotal role in developing a platform that empowers researchers to explore, test, and deploy complex signals, models, and strategies across various asset classes in a fully automated and robust manner, all while adhering to stringent latency targets. Your contributions will be crucial in building, maintaining, and supporting this platform.Responsibilities:Design, develop, and maintain our leading global trading platform using low-latency C/C++ systems specifically for high-frequency trading (HFT), consistently improving its performance, functionality, and stability.Conduct rigorous testing and engage in thorough code reviews to ensure high-quality standards.Integrate advanced networking hardware interfaces (FPGA, kernel-bypassing drivers).Exhibit proactive decision-making and self-direction, while knowing when to seek assistance.Investigate and propose enhancements for platform performance.Requirements:A minimum of 2 years of experience in developing high-frequency trading platforms and trading systems.Proficiency in C/C++, particularly modern C++ within a Linux environment.Expertise in profiling and optimization techniques.Strong understanding of Object-Oriented Programming (OOP), Multithreading, and Inter-Process Communication (IPC).Bachelor's degree or higher in Computer Science, Computer Engineering, or a related field.Meticulous attention to detail, a commitment to maintaining high standards, and a critical mindset.Able to juggle multiple tasks in a fast-paced environment.A proactive attitude towards building, learning, and achieving results.Desirable Qualifications:Familiarity with operating systems, including kernel-level understanding of device support in Linux.Knowledge of financial instruments such as Stocks, ETFs, Futures, and Options.Experience with various market data and order entry protocols (ITCH, OUCH, PITCH, CME MDP).A genuine interest in finance, trading, and contemporary electronic markets.Benefits:Competitive salary packagePerformance-based bonuses401(k) retirement planMental health support initiatives

Belvedere Trading is a premier proprietary trading firm with a robust presence in Chicago, New York, Boulder, and Singapore. Our dedicated traders excel in providing market liquidity through their adept market-making activities, mastering a broad spectrum of commodities, interest rates, exchange-traded funds (ETFs), and equity index options. From our inception, we have consistently invested in cutting-edge proprietary technology, building our systems from the ground up. Our trading models and software systems undergo continuous re-engineering and optimization to maintain our competitive edge within the industry. We thrive in a collaborative team environment where we challenge each other to consistently deliver value and share in the collective success of the firm.We are seeking a Senior Trading Software Engineer to innovate and enhance our trading platform. In this role, you will collaborate closely with traders and quantitative researchers to design and evolve the infrastructure behind our automated options trading systems. Our core platform is developed in Java, with an expansion into modern C++ to propel our strategies into new markets. You will be involved in all aspects, from trading logic and system performance to FPGA integrations. Our daily operations emphasize rigorous code reviews, automated testing, and scalable best practices. If you are passionate about optimizing every microsecond, tackling real-time challenges, and building robust, scalable systems, this position will keep you engaged and motivated every day.

Atto Trading is a leading quantitative trading firm that employs a portfolio of signal-driven high-frequency trading strategies across cash equities and futures markets.We are currently seeking a dedicated Trading Operations Engineer to enhance our team. As we embark on expanding into new markets, it is an exhilarating time to join our diverse group of professionals specializing in trading, statistics, engineering, and technology. Our methodical approach, paired with rapid market feedback, enables us to transform innovative ideas into profitable outcomes swiftly. We foster a collaborative and educational environment where we tackle some of the most challenging problems in the industry together.As a compact firm, we maintain agility and uphold the highest standards of integrity, creativity, and diligence.Our Trading Activities:We execute trades on nearly all US exchanges, including NASDAQ, NYSE, ARCA, Cboe, CME, CFE, and more.Key Responsibilities:Oversee and manage Atto Trading’s automated trading systems to ensure seamless operations.Conduct proactive analyses and enhancements of trading pipelines by developing scripts to automate and optimize daily trading processes and reporting mechanisms.Collaborate with traders, engineers, brokers, and exchanges to address and resolve intraday issues in real time.Engage directly with exchanges and clearing members to investigate and resolve live trading discrepancies.Partner with software engineering teams to refine and sustain trading infrastructure and internal monitoring systems.Automate and enhance trading support workflows and pipelines utilizing Python and Bash scripting.Support daily risk operations through report generation and execution of established risk protocols.Document production incidents while maintaining thorough logs and monitoring protocols.Manage and oversee enterprise systems related to pipeline scheduling, software releases, and operational monitoring.Assist in new market deployments by working closely with internal teams on infrastructure and connectivity.

Join Our Team as a Software Engineer in Portfolio EngineeringAt Talos, we are revolutionizing the digital asset market by providing cutting-edge trading technology designed specifically for institutions. Since our inception in 2018, we have been dedicated to promoting the widespread adoption of digital assets by effectively linking institutions to the digital ecosystem.Our culture is built on kindness, respect, and the celebration of diverse perspectives, fostering an inclusive environment where every team member's contributions are valued. We believe that collaboration drives our progress, and we strive to cultivate a workplace grounded in trust, integrity, and mutual growth.As a part of our globally distributed team, you'll collaborate with highly skilled engineers and business leaders from hubs around the world, including New York, London, Singapore, and Cyprus. Whether working remotely or in-person, you will be empowered to leverage your unique skills to contribute to our mission.Your Role as a Software Engineer in Portfolio EngineeringWe are looking for a passionate Software Engineer to join our Portfolio Engineering team, responsible for developing systems that facilitate institutional portfolio construction, optimization, risk modeling, and systematic strategy deployment within digital assets.You will engage with our Portfolio Engineering platform that integrates seamlessly with Talos OEMS, allowing clients to design, validate, and implement investment strategies in a robust production environment. Your contributions will be vital in ensuring the correctness, performance, and scalability of our core systems.

About WintermuteWintermute is a leading algorithmic trading firm specializing in digital assets. We are at the forefront of providing liquidity across all major cryptocurrency exchanges and trading platforms, along with a wide range of OTC trading solutions. Our partnerships with high-profile blockchain projects and traditional financial institutions transitioning into the crypto space position us as a pivotal player in the digital asset markets. We don’t just trade; we actively contribute to the blockchain ecosystem through strategic investments, collaborations, and project incubation. For more details, please visit here.Why Join Wintermute?As a global company with offices in London and Singapore, we opened our US office in early 2025, anticipating significant growth in the coming years. This presents a unique opportunity for you to be part of the rapid expansion of Wintermute Americas. Role OverviewWe are looking for a DevOps Engineer to join our Liquidity Integration team in New York. The Liquidity team is integral to supporting Wintermute’s flagship OTC platform, which facilitates trading for thousands of counterparties via API and the Wintermute NODE platform. Your responsibilities will include designing efficient counterparty-centric integration and support processes, as well as providing operational support throughout the counterparty lifecycle.Your role will focus on global integrations and support, particularly during US business hours and for US counterparties. Collaboration with business development, product teams, traders, engineers, and our global DevOps teams in London and Singapore will be essential in ensuring counterparty technical integration, platform stability, performance, and resilience.

Join the Institutional Fabric of the Digital Asset MarketFounded in 2018, Talos Trading is at the forefront of providing institutional-grade trading technology for the global digital asset market, empowering leading entities within the crypto ecosystem. Our mission is to facilitate the widespread adoption of digital assets by effectively connecting institutions to the digital asset landscape. We are dedicated to creating the most innovative and reliable platform globally, supporting every aspect of the trading lifecycle.At Talos, we cultivate an environment that promotes kindness, respect, and inclusivity. We value diverse perspectives and believe that each team member contributes unique insights that propel Talos forward. Our culture is built on trust, integrity, collaboration, and collective growth.Our team is a close-knit, globally distributed group of seasoned engineers and business leaders, with offices in New York, London, Singapore, and Cyprus. In our hybrid-friendly setting, whether working from the office or remotely, your individual skills and insights will be essential in building something exceptional.Client Services Engineer RoleWe are seeking a seasoned client-facing engineer who will play a pivotal role in supporting our customers within a dynamic, 24/7 global digital asset trading environment. This essential position will contribute significantly to client success and the overall stability of our trading systems.

Join the Digital Asset Revolution as a Software EngineerFounded in 2018, Talos is at the forefront of institutional trading technology for the digital asset market, supporting the leading entities within the crypto ecosystem.Our mission at Talos is to propel the widespread adoption of digital assets by effectively bridging institutions with the digital asset landscape. We are dedicated to creating the most innovative and reliable platform globally, encompassing the full trading lifecycle.At Talos, we cultivate a workplace that prioritizes kindness and respect, values diverse perspectives, and champions inclusivity. Every team member contributes unique insights and abilities that drive our mission forward. In our quest for excellence, we maintain a culture of trust, integrity, collaboration, and shared growth. Together, we are ambitiously crafting something remarkable. Your distinct skills and insights will be integral to our collective success.We are a close-knit yet decentralized team of seasoned engineers and business professionals. Our hybrid work model offers flexibility, with physical hubs located in New York, London, Singapore, Sweden, and Cyprus.Position Overview: Software EngineerOperating at the intersection of cryptocurrency and capital markets, Talos is building high-performance systems tailored for the dynamic digital asset arena. As a Software Engineer, you will work alongside our talented team to enhance the backend platform that empowers institutional crypto trading.You will engage in critical tasks such as order routing, market data connectivity, position management, and risk systems. We seek engineers who are eager to take ownership of their projects and engage throughout the development lifecycle, from design and implementation to testing and deployment.At Talos, we value engineers who thrive on solving intricate problems, excel in fast-paced environments, and are keen to learn from experienced colleagues. While prior experience in finance or crypto is advantageous, we prioritize your coding proficiency, critical thinking, and collaborative spirit.Curious about Talos’s engineering culture? Explore Sonic, our inaugural open-source project that enables Talos to achieve microsecond network stack latency in Go: https://github.com/talostrading/sonic

Join Gauntlet, a pioneer in quantitative research and optimization of decentralized finance (DeFi) economics. We specialize in managing market risk, optimizing growth, and ensuring the economic integrity of protocols that facilitate the majority of spot trading, borrowing, and lending activities within the DeFi space. Our commitment is to protect and enhance the largest protocols and networks, building institutional-grade vaults that provide risk-adjusted on-chain yields for capital at scale, crafted by some of the sharpest quantitative minds in the crypto industry, guided by extensive research.As of November 2025, we proudly manage over $2 billion in total value locked (TVL) across our vaults and optimize risk and incentives for over $42 billion in customer TVL. Our cutting-edge research continuously shapes our risk models, alerts, and analysis, making us one of the most cited institutions in the realm of DeFi, including among academic circles. Operating as a Series B company, we are home to approximately 75 talented employees, embracing a remote-first approach with a primary base in New York City.At Gauntlet, we harness automated risk models and off-chain intelligence to create institutional-grade vaults that deliver scalable, risk-adjusted DeFi yields. Our curated strategies span platforms such as Morpho, Drift, Symbiotic, and Aera, with a robust portfolio of Prime, Core, and Frontier vaults.Our mission is to foster understanding and adoption of future financial systems. We operate with the discipline of seasoned traders and the skepticism of risk managers: sizing trades carefully, applying rigorous stress testing, and executing decisions decisively. We believe that transparency is key: the label, package, and contents must align perfectly, ensuring no surprises—only dependable, predictable vaults.As a Senior Software Engineer on our derivatives trading team, you will play a pivotal role in developing the core infrastructure that powers our product offerings and trading systems. Collaborating with a team rich in experience across technology and finance, you will help build the backbone of our high-performance derivatives trading strategies. This role places you close to trading operations, allowing you to take ownership of critical infrastructure from end to end and to deploy systems that manage real capital in active crypto markets.

Stellar Health focuses on improving patient outcomes in the US healthcare system by moving away from traditional fee-for-service models. The company’s platform connects technology, people, and analytics to support primary care providers in delivering high-quality care. Through the Stellar App, practices can access real-time patient data and actionable insights, helping them streamline daily workflows and reduce costs for payors. Role overview The Senior Software Engineer II will play a key part in building core features for Stellar Health’s platform. This position is part of a collaborative engineering team where every member’s contributions shape the product’s direction. The team emphasizes writing clean, scalable code and values quick iteration to reach impactful results. What you will do Develop and enhance core functionalities within the Stellar Health platform. Collaborate with the Autoprogression team to improve the provider experience in the Stellar application. Transform and manage data to ensure accuracy and reliability. Contribute to building an intuitive frontend interface for healthcare providers.

About KalshiKalshi is pioneering a groundbreaking sector in finance: prediction markets. Our platform empowers individuals to trade on the outcomes of various events, transforming any future question into a financial opportunity. After years of advocacy, we successfully legalized prediction markets in the U.S., establishing ourselves as the fastest-growing financial market in the nation, with thousands of markets spanning politics, economics, finance, weather, technology, AI, culture, and beyond.We envision a world where prediction markets become the largest financial marketplace globally, enabling anyone to engage and invest in the future.Our vision: To construct the largest financial market on Earth.Our mission: To bring greater truth to the world through the power of markets.At Kalshi, our culture revolves around hiring exceptional talent, fostering hard work, and enjoying the journey together. We seek ambitious and remarkable individuals to join our compact team and help build the next generation of financial markets.Your RoleAs a vital member of Kalshi, you will be instrumental in crafting a next-generation financial ecosystem—akin to the NYSE or CME—starting from the ground up. You will engage with various platforms, including core exchange systems, clearinghouses, API infrastructure, and broker connectivity. In our agile team environment, your responsibilities will scale quickly, making your contributions significant and visible.Key ResponsibilitiesDevelop order matching and trade execution algorithms and data structures.Create high-performance data feeds and trading APIs for clients.Design robust clearing systems with high availability, including margining and collateral management.Lead integration efforts with external market makers, brokers, and hedge funds.Conduct stress tests on large-scale systems to ensure their durability and maintainability.Optimize database access patterns and service algorithms for enhanced performance.Innovate new market structures, including non-binary markets and futures.Maintain close contact with customers to define features, launch products, and iterate based on feedback.Deliver rapid and quality deployments, ensuring high standards in your work.

Belvedere Trading is a proprietary trading firm with offices in New York, Chicago, Boulder, and Singapore. The company specializes in trading commodities, interest rates, ETFs, and equity index options. Belvedere is known for its focus on technology and ongoing system improvements to stay ahead in the markets. As part of Riverside Capital Markets (RCM), Belvedere collaborates closely with founding partners to drive Market Making and Quantitative Trading efforts. Teams operate from multiple locations, including New York, and use both in-house and third-party software solutions to support trading activities. Role overview This Software Engineer position centers on designing, building, and maintaining high-performance trading systems. The role is well-suited for early-career engineers who want to take ownership of technical projects, solve challenging problems, and work directly with quantitative traders and experienced engineers. What you will do Participate in the full software development lifecycle, from design to deployment and ongoing support Develop reliable and efficient systems that align with business goals Collaborate with team members across engineering and trading functions Requirements Motivation to learn and grow as an engineer Interest in tackling complex technical challenges Intellectual curiosity and a commitment to continuous development

Trexquant Investment LP is on the lookout for a talented and experienced Software Engineer with advanced proficiency in C++ and practical experience within high-frequency trading environments. In this pivotal role, you will be responsible for designing, implementing, and optimizing high-performance short-term trading signals that directly enhance trading performance. You’ll work closely with innovative researchers and technologists while also demonstrating the ability to operate independently in building systems that yield measurable results.Key ResponsibilitiesCreate, construct, and optimize high-performance short-term trading signals.Enhance and support independent trading workflows to ensure robust, scalable, and low-latency performance.Write clean, maintainable, and thoroughly tested C++ code for real-time trading systems.Profile and enhance system performance across software and Linux environments.Collaborate with researchers and technologists to transform ideas into production-ready implementations while effectively working with minimal supervision.QualificationsExpert-level proficiency in C++ and Linux, with a strong background in developing high-performance, latency-sensitive systems.A minimum of 2 years of quantitative development experience in high-frequency trading or similar real-time environments.Bachelor’s, Master’s, or PhD in Computer Science or a related STEM field.Strong analytical and problem-solving abilities.Demonstrated capability to work collaboratively and independently with minimal supervision.

Cresilon® is a pioneering biotechnology firm located in Brooklyn, New York. We specialize in the development, manufacturing, and marketing of innovative hemostatic medical devices, leveraging our proprietary hydrogel technology. Our groundbreaking, plant-based solutions have transformed the way traumatic and surgical bleeds are managed, achieving swift hemostasis without the necessity for prolonged manual pressure. Our diverse product lines cater to veterinary, human trauma, and surgical applications, embodying our mission to save lives. Discover more about us at www.cresilon.com.Job Overview:We are seeking an experienced Senior Process Engineer or Process Engineer II to join our manufacturing team. This position is critical in spearheading the development and optimization of manufacturing processes for our medical device products. You will collaborate with cross-functional teams—Quality, R&D, Regulatory, and Production—to ensure that our manufacturing processes adhere to the highest standards of quality, compliance, and performance. Your role will involve hands-on engagement with the production team, training operators on new processes, troubleshooting equipment issues, and executing qualifications and validations.This is a full-time, on-site role based in Brooklyn, New York, in a dynamic and collaborative environment that demands creativity and focused execution to enhance production efficiency and establish robust manufacturing processes.Key Responsibilities:Design, develop, and optimize manufacturing processes for both new and existing medical devices.Lead process development for new product introductions (NPI), guiding projects from concept through validation and launch.Refine manufacturing processes to minimize variability, enhance yield, improve cycle times, and lower costs.Assess and implement automation technologies to boost process consistency and throughput.Collaborate with external vendors and suppliers to specify equipment and troubleshoot product issues.Analyze production data to uncover trends, root causes, and opportunities for increased efficiency.Maintain and update validation documentation as part of lifecycle management.Ensure compliance with regulatory requirements and internal quality standards.Lead investigations into root causes (CAPA, NCRs, SCARs) and implement corrective actions.Create process documentation, including standard operating procedures (SOPs), work instructions, pFMEAs, and equipment qualifications.Partner with R&D during the design transfer phase to ensure manufacturability.

About UsThe Farmer's Dog is on a mission to revolutionize pet health by providing dogs and their owners with honest, smart, and straightforward care. We are transforming the $90 billion pet food industry by offering a personalized subscription service that delivers complete, balanced, freshly-made dog food directly to our customers' doors. Our ultimate aim is to innovate and enhance every aspect of pet care, and we believe our direct-to-consumer model, holistic growth strategy, and vibrant company culture uniquely equip us to lead this industry into the future.To date, we have delivered over 1 billion meals nationwide and secured more than $150M in funding to build a company as healthy as the dogs we serve. Join us in our journey to bring peace of mind to our customers and health to their beloved companions.Our Values and Your RoleAt The Farmer's Dog, we believe that an exceptional customer experience stems from owning the technology that powers it. We design, build, and operate our systems in-house, from subscription and e-commerce to fulfillment and delivery, ensuring every dog and owner receives the right experience consistently.As a Senior Software Engineer II, you will tackle significant challenges, enhancing systems to accommodate rapid growth, building adaptable platforms that cater to diverse customer needs, and creating innovative product experiences. You'll collaborate with a talented team of engineers and managers who are dedicated to building reliable, scalable systems while fostering a supportive work environment.If you are eager to make a substantial impact on technology, customers, and the lives of dogs everywhere, this is the perfect opportunity for you.Team Collaboration: We don't limit ourselves to titles like 'Acquisition Marketers', 'Engineers', or 'Product Managers'. We prioritize aligning with the goals we aim to achieve, ensuring we have the necessary expertise to drive impactful results. Together, we focus on solving customer problems by bringing the right people and context into collaborative spaces.Continuous Improvement: We maintain a skeptical mindset and value ideas from all sources. We actively seek to challenge assumptions and embrace innovation.

Compass builds a platform that supports residential real estate agents as they guide buyers and sellers through property transactions. Since 2012, the company has focused on tools that help people find their place in the world. Role overview Senior Software Engineer II roles at Compass involve building and enhancing essential parts of the platform. Teams contribute to features such as search, authorization, and transaction management. This position is based in New York City. What you will do Design and implement services within a microservices-based architecture. Create products that influence the experience for buyers, sellers, and agents. Work on projects that help maintain and scale the brokerage platform. Shape the daily interactions users have with Compass. Growth and impact This role offers opportunities to advance your career while making a direct contribution to Compass’s platform and the experience of its customers.

Trexquant is a systematic fund in New York specializing in quantitative finance. The firm’s team brings together researchers and engineers who focus on advancing its quantitative platform and trading operations. Role overview The C++ Trading and Simulation Engineer will be part of Trexquant’s technology group. This role centers on building and enhancing trading systems and analytics platforms that underpin the firm’s algorithmic strategies. What you will do Collaborate with quantitative researchers and traders to design, implement, and optimize high-performance systems for algorithmic trading. Develop and maintain infrastructure for trading simulations, including data pipelines and low-latency execution platforms. Contribute to the ongoing development and improvement of tools supporting trading and research. Requirements Extensive experience with C++ development. Background in building scalable, low-latency, high-throughput systems. Demonstrated ability to develop and maintain complex infrastructure for trading or related applications. Location This position is based in New York, NY.

Role overview The Trade Desk seeks a Senior Software Engineer in High Performance Computing to join the Rates & Fees Team in New York. The focus is on designing and building software that sharpens pricing models and boosts system performance for the digital advertising platform. What you will do Create software solutions that enable scalable and efficient pricing models. Apply advanced technologies to improve system performance and reliability. Work closely with data scientists and product managers to solve complex technical problems. Take part in projects that shape the company's standing in the digital advertising space. Team and collaboration This role sits within a team that emphasizes teamwork and open communication. Engineers, data scientists, and product managers partner to deliver software that addresses business needs and drives measurable outcomes.

Role overview DV Trading is looking for a Senior Cloud Engineer to help shape and support the cloud infrastructure behind their trading operations. This role offers flexibility in location, with options to work from Chicago, London, New York, or remotely. What you will do Design and build scalable cloud solutions that power trading systems Maintain and refine existing cloud infrastructure to ensure stability and performance Collaborate with teams across the company to deliver reliable, efficient systems Use cloud technology expertise to support and enhance trading strategies Locations Chicago London New York Remote