Jobs at Old Mission

Design, build, and maintain data pipelines, datasets, APIs, storage systems, and research infrastructure supporting quantitative trading. Develop big data tooling for cluster and high-throughput computing, improve scalability and performance, manage data transmission between C++ and Python, and support releases, debugging, maintenance, and storage expansion. The role also involves leading technical projects and mentoring junior engineers.

Deploys, operates, monitors, and troubleshoots latency-sensitive trading applications and infrastructure. Automates management tasks in Python, resolves live incidents, develops monitoring and alerting, supports system and exchange rollouts, performs user acceptance testing, and identifies recurring incidents for continuous improvement. The role requires strong Linux-based Python programming, troubleshooting, collaboration, and performance optimization in an on-site trading environment.

Conduct economic, event-driven, company-specific, quantitative, and qualitative research for an options trading team. Analyze financial information, market events, datasets, and securities to identify trading opportunities and assess impacts on underlying options. Serve as a research contact for traders, support market-data analysis and strategy testing, and communicate insights in a fast-paced, time-sensitive environment across domestic and international markets.

Sources and engages candidates, primarily for technical roles, while building talent pipelines and supporting recruiting strategies. Evaluates and pitches candidates, provides a strong candidate experience, compiles pipeline and market intelligence reports, and maintains data integrity. The role offers exposure to full-cycle recruiting, including screening and interview coordination, while partnering with recruiters, hiring managers, and business leaders.

Build and maintain reliable, scalable post-trade systems supporting global trading across asset classes. Coordinate solutions across varied inputs, outputs, and latency requirements using Python and C++ within distributed systems. Apply Linux performance tuning and networking expertise, work with relational databases, and integrate FIX capabilities including execution management, market data, and drop copy. Collaborate effectively, communicate clearly, and own projects in a fast-paced trading environment.

Join the options trading quant team to design, implement, and improve derivative pricing models (variance swaps, VIX, volatility swaps). Evaluate and stabilize calibrations and Greeks, develop Python research libraries and market-data filters, analyze microstructure for trading ideas, and collaborate with traders to build tools and generate options research.

The Fundamental Research Analyst will conduct research and monitor global news to identify investment opportunities, supporting traders in making informed decisions.

The Software Engineer will enhance trading systems and applications, collaborating with teams to improve adaptability and scalability in a fast-paced environment.

The position involves building and optimizing automated trading infrastructure, developing trading algorithms, and creating scalable applications in a team environment.

Old Mission is a global trading firm seeking passionate professionals for future opportunities in quantitative finance. They value collaboration, results, and continuous learning.

The Quantitative Researcher will develop and enhance pricing models for volatility-based derivatives, analyze market data, and collaborate with traders to generate trading ideas.

Hands-on tax manager responsible for U.S. international tax compliance (GILTI, Subpart F, FTC, BEAT), federal/state/local filings, transfer pricing support, tax research and authority responses, process improvements, tax calendar ownership, and cross-functional coordination. Uses advanced Excel and AI tools to prepare and review workpapers, support external advisors, and advise on transactions and structure.

The Quantitative Researcher will analyze pricing models, evaluate trades, and collaborate on model improvements in the equities trading group.

Support an international trading desk by monitoring global news and macro events, producing research reports, identifying trading opportunities, and collaborating with traders to analyze data and develop tools.

Summer law internship providing junior-attorney-level work in a financial services legal team: review and manage commercial contracts, support entity formation and governance, conduct legal and regulatory research, draft corporate documents and policies, assist compliance, and maintain regulatory reference materials and contract lifecycle systems.

Summer internship building and supporting C++ trading applications and tools. Work hands-on on projects with engineers and traders, learn electronic trading systems, receive mentorship, and contribute to daily firm activities.

Join a graduate software engineering program to develop and support C++-based trading applications and tools. Work on systems programming, data structures, and algorithms in a Linux environment, contributing immediately to electronic trading initiatives while learning and collaborating with experienced engineers.

The Junior Quantitative Researcher will develop and enhance pricing models for volatility-based derivatives, analyze market data, and collaborate with traders in a fast-paced environment.