FactSet creates flexible, open data and software solutions for over 200,000 investment professionals worldwide, providing instant access to financial data and analytics that investors use to make crucial decisions.
At FactSet, our values are the foundation of everything we do. They express how we act and operate, serve as a compass in our decision-making, and play a big role in how we treat each other, our clients, and our communities. We believe that the best ideas can come from anyone, anywhere, at any time, and that curiosity is the key to anticipating our clients’ needs and exceeding their expectations.
We are seeking an accomplished Principal Software Engineer to join the core team responsible for our mission-critical Investment Book of Record (IBOR). This platform is the definitive source of truth for all positions, transactions, and cash. You will be a key technical contributor, responsible for designing, building, and enhancing the services and interfaces that make our IBOR reliable, scalable, and performant.
Key Responsibilities:
Hands-On Development: Design, develop, and maintain robust backend services and APIs using C# (.NET Core), focusing on high throughput and low latency.
Data & Analytics Tooling: Build data processing pipelines, reconciliation tools, and analytical scripts using Python, leveraging libraries like Pandas and NumPy.
System Architecture: Contribute to architectural and design decisions, ensuring our solutions are scalable, resilient, and maintainable. Participate in code reviews to maintain high standards of quality.
Database Management: Work with our database systems (MongoDB and MySQL) to ensure data integrity and performance.
Collaboration: Work closely with Product Managers to understand requirements.
Mentorship: Guide and mentor junior engineers.
Required Qualifications & Experience:
Minimum Requirements:
10+ years of professional software engineering experience.
Critical Skills:
Expert-level proficiency in C# and the .NET Core ecosystem for building enterprise-grade backend systems.
Strong professional experience with Python for data analysis, scripting, or backend services.
Significant experience in the financial services industry, with a strong grasp of the trade lifecycle, financial instruments (equities, fixed income, derivatives), and position management concepts.
Experience building and consuming RESTful APIs and a solid understanding of software design patterns.
Preferred Qualifications:
Direct experience working on an IBOR or Portfolio Management System
Experience with cloud platforms (AWS) and containerisation technologies (Docker/ ECS).
Experience working with ServiceStack
Education:
Bachelor's degree in Computer Science, Engineering, Mathematics, or a related field.
The budgeted salary range for this position in the states of Connecticut and New York is $165,000.00 - 215,000.00
Company Overview:
FactSet (NYSE:FDS | NASDAQ:FDS) helps the financial community to see more, think bigger, and work better. Our digital platform and enterprise solutions deliver financial data, analytics, and open technology to more than 8,200 global clients, including over 200,000 individual users. Clients across the buy-side and sell-side, as well as wealth managers, private equity firms, and corporations, achieve more every day with our comprehensive and connected content, flexible next-generation workflow solutions, and client-centric specialized support. As a member of the S&P 500, we are committed to sustainable growth and have been recognized among the Best Places to Work in 2023 by Glassdoor as a Glassdoor Employees’ Choice Award winner. Learn more at www.factset.com and follow us on X and LinkedIn.
At FactSet, we celebrate difference of thought, experience, and perspective. Qualified applicants will be considered for employment without regard to race, color, religion, national origin, sex, sexual orientation, gender identity, disability, protected veteran status or other characteristics protected by law. FactSet participates in E-Verify
Skills Required
- 10+ years of professional software engineering experience
- Expert-level proficiency in C# and the .NET Core ecosystem
- Strong professional experience with Python for data analysis, scripting, or backend services
- Significant financial services industry experience
- Understanding of trade lifecycle, financial instruments, and position management concepts
- Experience building and consuming RESTful APIs
- Understanding of software design patterns
- Experience with IBOR or Portfolio Management Systems
- Experience with AWS
- Experience with Docker and ECS
- Experience with ServiceStack
- Bachelor's degree in Computer Science, Engineering, Mathematics, or a related field
Factset Compensation & Benefits Highlights
The following summarizes recurring compensation and benefits themes identified from responses generated by popular LLMs to common candidate questions about Factset and has not been reviewed or approved by Factset.
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Healthcare Strength — Healthcare coverage is positioned as comprehensive, spanning medical, dental/vision in some descriptions, and life and disability insurance. Company-wide wellness days and region-specific add-ons (e.g., Vitality PMI, Bupa dental, Health Shield cashback) further reinforce a strong health-and-wellbeing offering.
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Retirement Support — Retirement savings support is consistently included as part of the core package through retirement savings plans. The presence of these programs is framed as a meaningful component of total rewards beyond base salary.
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Equity Value & Accessibility — An employee stock purchase program is highlighted as a standard part of the total rewards package. This provides a pathway to share ownership alongside cash compensation.
Factset Insights
What We Do
FactSet creates flexible, open data and software solutions for tens of thousands of investment professionals around the world, providing instant access to financial data and analytics that investors use to make crucial decisions. For 40 years, through market changes and technological progress, our focus has always been to provide exceptional client service. From more than 60 offices in 23 countries, we’re all working together toward the goal of creating value for our clients, and we’re proud that 95% of asset managers who use FactSet continue to use FactSet, year after year. As big as we grow, as far as we reach, and as successful as we become, we stay connected to our clients and to each other.
