William Sargent
Rochdale,MA
Summary
Software development professional prepared for high-impact roles within technology-driven environments. Extensive background in designing and optimizing software solutions, with commitment to delivering high-quality results. Known for effective teamwork and adaptability, with key skills in coding and system architecture.
Overview
50
50
years of professional experience
1
1
Certification
Work History
Senior Quantitative Software Engineer
Fidelity Investments
Boston, MA
01.2010 - Current
- Designed and implemented proprietary quantitative trading algorithms using Python, C++, and MATLAB, resulting in optimized portfolio management systems that handled $500B+ in assets under management.
- Led development of risk assessment models incorporating stochastic processes and Monte Carlo simulations, reducing computational time by 40% through parallel processing optimizations.
- Collaborated with data scientists to integrate machine learning frameworks (TensorFlow, PyTorch) into financial forecasting tools, enhancing predictive accuracy by 25%.
- Mentored junior engineers on applied mathematics applications in software, including numerical methods for partial differential equations in derivative pricing.
- Contributed to AI-driven analytics projects, evaluating model outputs for bias and reliability in high-stakes financial environments.
- Part-time Consultant since 2020
- Led software development projects, enhancing system efficiency and user experience.
- Mentored junior developers, fostering skill growth and knowledge sharing within team.
Principal Applied Mathematician & Software Architect
Raytheon Technologies
Waltham, MA
01.1995 - 01.2010
- Architected simulation software for aerospace defense systems, utilizing Fortran and C++ to model fluid dynamics and trajectory optimizations, supporting multimillion-dollar government contracts.
- Developed real-time computational algorithms for radar signal processing, applying Fourier transforms and linear algebra to improve detection accuracy by 30%.
- Oversaw a team of 15 engineers in building scalable software platforms for predictive modeling, incorporating finite element analysis for structural integrity simulations.
- Integrated early AI techniques, such as neural networks, into decision-support systems for mission planning, predating modern ML frameworks.
- Published internal whitepapers on numerical stability in large-scale simulations, influencing company-wide best practices.
Quantitative Analyst & Software Developer
State Street Global Advisors
Boston, MA
01.1985 - 01.1995
- Built quantitative models for asset allocation and risk management using applied probability and optimization techniques, managing models for $100B+ portfolios.
- Programmed custom software tools in C and assembly language for high-frequency data analysis, pioneering early database integrations with SQL.
- Conducted research on econometric models, implementing time-series analysis (ARIMA, GARCH) to forecast market volatility.
- Collaborated with academic partners at MIT to refine algorithms, resulting in patented software for multi-asset class optimization.
Research Mathematician
MIT Lincoln Laboratory
Lexington, MA
01.1978 - 01.1985
- Developed mathematical models and software for signal processing in national security projects, focusing on cryptography and error-correcting codes.
- Created simulation environments using early programming languages (Fortran, Lisp) to test algorithmic efficiency in resource-constrained systems.
- Contributed to publications on graph theory applications in network optimization, cited in over 50 academic papers.
Junior Software Engineer
Digital Equipment Corporation (DEC)
Maynard, MA
01.1976 - 01.1978
- Assisted in developing operating system components for minicomputers, gaining foundational experience in low-level programming and system architecture.
- Optimized code for performance in scientific computing applications, applying linear algebra and numerical methods.
Education
Ph.D. - Applied Mathematics
Massachusetts Institute of Technology (MIT)
Cambridge, MA01-1980
M.S. - Mathematics
Harvard University
Cambridge, MA01-1976
B.S. - Mathematics
Boston University
Boston, MA01-1974
Skills
- Programming Languages: Python (expert, including NumPy, SciPy, Pandas), C (expert), MATLAB, Fortran, Java, R, SQL
- Machine Learning & AI: TensorFlow, PyTorch, Scikit-learn; experience in model evaluation, prompt engineering, and LLM fine-tuning
- Applied Mathematics: Stochastic Processes, Numerical Analysis, Optimization, Partial Differential Equations, Graph Theory, Probability & Statistics
- Tools & Frameworks: Git, Docker, AWS, High-Performance Computing (HPC), Monte Carlo Simulations, Finite Element Methods
- Soft Skills: Team Leadership, Mentorship, Technical Writing, Cross-Disciplinary Collaboration
- Domains: Quantitative Finance, Aerospace Simulations, Signal Processing, AI Research Support
- Proficient in JavaScript
- Object-oriented programming
Accomplishments
- Mentored 10+ new employees to bring them up to speed on projects, resulting in quicker overall completion milestones.
- Retooled the shopping cart system which boosted the checkout process by 13%.
Certification
- Certified Scrum Master (CSM), Scrum Alliance, 2015
- Fellow, Society for Industrial and Applied Mathematics (SIAM), 2005
- Outstanding Contribution Award, Raytheon Technologies, 2008
- Patent Holder: "Algorithm for Multi-Asset Optimization" (US Patent #5,123,456, 1992)
Languages
English
Publications & Presentations (Selected)
- "Advancements in Stochastic Modeling for Risk Assessment," Journal of Computational Finance, 2012
- "Numerical Stability in Large-Scale Simulations," SIAM Journal on Scientific Computing, 2000
- Presented at International Conference on Quantitative Finance, New York, NY, 2015
Timeline
Senior Quantitative Software Engineer
Fidelity Investments
01.2010 - Current
Principal Applied Mathematician & Software Architect
Raytheon Technologies
01.1995 - 01.2010
Quantitative Analyst & Software Developer
State Street Global Advisors
01.1985 - 01.1995
Research Mathematician
MIT Lincoln Laboratory
01.1978 - 01.1985
Junior Software Engineer
Digital Equipment Corporation (DEC)
01.1976 - 01.1978
M.S. - Mathematics
Harvard University
B.S. - Mathematics
Boston University
Ph.D. - Applied Mathematics
Massachusetts Institute of Technology (MIT)