Numeus is a diversified digital asset investment firm built to the highest institutional standards, combining synergistic businesses across Alpha Strategies, Trading, and Asset Management. Numeus was founded by successful executives with decades of experience across the finance, blockchain and technology industries, with a shared passion for digital assets. Our values are grounded in an open approach based on connectivity, collaboration, and partnerships across the digital asset ecosystem. People and technology are at the core of everything we do. As a Senior Quantitative Developer on our Crypto Options team, you will design and build the production systems that power our derivatives trading strategies and market making operations. You'll be responsible for developing robust, efficient trading applications that implement sophisticated quantitative models for pricing, risk management, and alpha generation across crypto options markets. This role sits at the intersection of trading strategy implementation and software engineering, requiring both technical expertise and financial markets understanding.

Key Responsibilities:

Develop full-stack production applications to run derivatives strategies and support market making operations for crypto options Implement pricing and risk management models for crypto volatility surfaces and options contracts Create tools for market data analysis, trade execution, and performance evaluation Develop connectivity solutions for crypto derivatives exchanges with error handling and reconnection logic Design trading execution algorithms for crypto options markets Collaborate with quantitative researchers to translate trading strategy concepts into production code Implement monitoring dashboards and real-time risk management tools

Skill Set and Qualifications:

Bachelor's or Master's degree in Computer Science, Mathematics, Engineering, or related quantitative field 3+ years of software development experience in finance or trading Strong programming skills in C++, Rust, Python and knowledge of object-oriented design Experience developing production trading systems or financial applications Working knowledge of database systems and data processing Experience with web technologies and API design Familiarity with options pricing models and volatility surfaces

Are you keen to work in a well-resourced startup environment, where your ideas, experience, and drive to find creative solutions makes a difference? We’d like to hear from you.

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BitGo is the leading infrastructure provider of digital asset solutions, delivering custody, wallets, staking, trading, financing, and settlement services from regulated cold storage. Since our founding in 2013, we have focused on enabling our clients to securely navigate the digital asset space. With a global presence and multiple Trust companies, BitGo serves thousands of institutions, including many of the industry's top brands, exchanges, and platforms, and millions of retail investors worldwide. As the operational backbone of the digital economy, BitGo handles a significant portion of Bitcoin network transactions and is the largest independent digital asset custodian, and staking provider, in the world. For more information, visit www.bitgo.com. Responsibilities

Lead efforts to improve the developer experience for external clients integrating with BitGo’s APIs. Continuously refine and enhance our API documentation portal to be best-in-class, ensuring clarity, completeness, and ease of use (in collaboration with technical writers). Define and maintain a structured process for API change management, ensuring external developers are informed in advance and minimizing disruption. Establish and enforce best practices for API design, versioning, and deprecation strategies. Maintain and extend the system that derives OpenAPI specifications from service implementations, ensuring accuracy and usability. Own and improve the BitGoJS SDK and BitGo Express, ensuring security, usability, and consistency across integrations. Track user journeys as developers integrate with our API, using data and direct client feedback to identify friction points and propose improvements that reduce time to successful integration. Work closely with engineers, product managers, and developer relations teams to drive alignment on API strategy and enhancements. Implement feedback loops and directly engage with clients (engineers integrating with our API) to improve API usability and onboarding. Drive initiatives to improve API discoverability, consistency, and developer tooling.

Required Qualifications

Deep expertise in API design and management, including REST, OpenAPI, and SDK development. Experience managing API change processes that minimize client disruption and ensure smooth transitions. Strong TypeScript and Node.js expertise, particularly in backend service development. Experience maintaining SDKs and API clients, with a focus on security, usability, and developer experience. Excellent communication and collaboration skills, with a high degree of empathy for external developers. Comfortable talking directly to clients (engineering teams integrating with our API) for feedback and insights.

Preferred Qualifications

Experience working on API developer portals and documentation tooling. Familiarity with tools for generating and maintaining OpenAPI specifications. Strong data analysis skills, with experience tracking user journeys and using data to drive continuous improvement. Background in developer relations, API product management, or related areas. Knowledge of versioning strategies, deprecation policies, and backward compatibility principles. Familiarity with CI/CD workflows and automation tools to improve API deployment processes.

Why Join BitGo? Disrupting an industry takes vision, innovation, passion, technical chops, drive to deliver, collaboration, and execution. Join a team of great people who strive for excellence and personify our corporate values of ownership, craftsmanship, and open communication. We are looking for new colleagues who bring innovative ways of thinking and problem solving, and who want risks to be part of the team that changes the world's financial markets. Here are some of the benefits* of working at BitGo:

Competitive base salary, bonus and stock options 100% company paid health insurance for employee, partner and dependents Up to 4% 401k company match Paid parental leave, Paid vacation Free commuter/parking pass Free custom lunches, dinners and snacks  Computer equipment and workplace furniture to suit your needs Great colleagues and inspiring startup environment

Cryptocurrencies are the most disruptive change the financial services industry has seen in years. Join us and you'll be able to look back and say you were part of the team that transformed investing. Pay Transparency Notice: Depending upon your leveling and location, the compensation for this role averages between $165,000 - $210,000 USD base salary. Equity, an annual performance bonus and the benefits outlined above are also a part of this role's package.

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