Lead Software Engineer

Overview

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.

Your Team's Impact

FactSet Research Systems is seeking a highly skilled Lead Software Engineer to lead the design, development, and integration of Model Context Protocol (MCP) servers, AI-driven solutions, and a robust evaluation framework for MCP tools and agent workflows. This role focuses on enabling secure, scalable, and intelligent systems by leveraging MCP standards, OAuth-based authentication, and advanced AI technologies, while ensuring quality through automated evaluations.

The ideal candidate will have deep expertise in distributed systems, API design, MCP architecture, AI integration, and evaluation methodologies, with a strong ability to troubleshoot complex issues and collaborate across teams. Creativity, problem-solving, and a passion for innovation are essential.

What You'll Do

• MCP & AI Integration
• Design and architect MCP servers and tools following best practices for scalability, security, and interoperability.
• Develop MCP-compliant services and connectors to integrate with AI platforms (e.g., LangChain, LangSmith).
• Implement secure authentication mechanisms, including OAuth 2.0, for remote MCP servers.
• Build scalable APIs and frameworks for AI-driven workflows and context-aware applications.
• Lead efforts to integrate LLM-based tools and agent frameworks into enterprise solutions.
• Research and evaluate emerging AI technologies and MCP standards to drive innovation.
• Evaluation Framework Ownership
• Design and implement an evaluation framework for MCP servers and tools, covering offline benchmarks, multi-turn tests, and production monitoring.
• Build datasets and evaluators to measure tool selection accuracy, argument validity, task completion, latency, and cost.
• Integrate LangSmith Evaluations, AgentEvals, and DeepEval for MCP-specific metrics.
• Define CI/CD gates for MCP tool regressions and agent behavior drift; automate evaluations in GitHub Actions or equivalent.
• Operationalize online evaluations for multi-turn conversations and agent threads to monitor success rates and failure modes.
• Engineering Leadership
• Promote infrastructure as code and automated deployment for MCP and AI services.
• Adopt test-driven development and implement automated unit, integration, and performance tests.
• Collaborate with architects, product managers, and engineering teams in an agile environment.
• Mentor junior engineers on MCP design, AI integration, and evaluation best practices.
• Ensure operational reliability and scalability of deployed MCP and AI solutions.
• Participate in on-call support rotation for critical MCP/AI services.
  

• Bachelor’s Degree or equivalent in Computer Science or related field.
• 8-10 years of software engineering experience with strong expertise in distributed systems and API design.
• Experience with MCP protocol implementation and related standards.
• Hands-on experience with OAuth 2.0, secure token management, and API authentication.
• Strong programming skills in Java, Python, or Node.js, with experience building RESTful APIs.
• Familiarity with LangChain, LangSmith, or similar AI frameworks.
• Experience with evaluation frameworks (LangSmith Evaluations, AgentEvals, DeepEval) and CI/CD integration.
• Strong understanding of data structures, algorithms, and software engineering principles.
• Excellent communication and collaboration skills.
  
  

• Knowledge of LLMs, prompt engineering, and AI agent orchestration.
• Familiarity with NoSQL databases, streaming architectures, and ETL tools.
• Background in financial data systems is a plus.
  
  

At FactSet, our people are our greatest asset, and our culture is our biggest competitive advantage. Being a FactSetter means:

• The opportunity to join an S&P 500 company with over 45 years of sustainable growth powered by the entrepreneurial spirit of a start-up.
• Support for your total well-being. This includes health, life, and disability insurance, as well as retirement savings plans and a discounted employee stock purchase program, plus paid time off for holidays, family leave, and company-wide wellness days.
• Flexible work accommodations. We value work/life harmony and offer our employees a range of accommodations to help them achieve success both at work and in their personal lives.
• A global community dedicated to volunteerism and sustainability, where collaboration is always encouraged, and individuality drives solutions.
• Career progression planning with dedicated time each month for learning and development.
• Business Resource Groups open to all employees that serve as a catalyst for connection, growth, and belonging.
  
  

Salary is just one component of our compensation package and is based on several factors including but not limited to education, work experience, and certifications.

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 characteristics protected by law.