Developer-Full Stack Senior

Title: Python Full Stack Developer
Location: McLean, VA (Full-Time Onsite, Monday-Friday)
Duration: Contract Only till Dec 31 ^st , 2026

Required Qualifications

• 5+ years of hands-on software development experience using a modern programming language (Python, Java, or C#).
• Experience with Git version control, SQL, Pandas, and unit testing.

Preferred Qualifications

• Shell scripting
• Financial services domain experience with fixed income knowledge
• Graduate degree in Computer Science, STEM, or related quantitative discipline
• CFA, FRM, or CPA certifications

Supplier Vetting Questions

1. How do you handle challenges or difficult situations? Please provide a recent example.
2. How do you set goals? Please provide an example of a goal you have achieved recently.

Senior Software Developer (Financial Accounting Applications) - Contract
Position Overview
Freddie Mac's Investments & Capital Markets division is seeking a Senior Software Developer to support its enterprise forecasting platform used for long-term financial projections, strategic planning, and decision-making. This role focuses on enhancing forecasting engines, improving model accuracy and scalability, supporting critical financial reporting cycles, and partnering with FP&A and business stakeholders to deliver new forecasting capabilities and meet evolving regulatory requirements.
Key Responsibilities

• Refactor and modernize financial accounting and forecasting application components to improve maintainability, performance, and scalability.
• Develop and enhance forecasting engine capabilities to improve model accuracy, efficiency, and enterprise readiness.
• Support quarterly and annual production runs for financial reporting, ensuring accuracy, integrity, and timely delivery.
• Troubleshoot defects, reduce technical debt, and drive continuous improvement initiatives.
• Develop high-quality, testable code with strong automated unit and integration test coverage.
• Collaborate across data, services, APIs, and infrastructure layers to deliver end-to-end solutions.
• Partner with FP&A and business stakeholders to implement forecasting enhancements and scenario analysis capabilities.
• Support infrastructure upgrades, platform migrations, and technology modernization efforts.
• Participate in design discussions, code reviews, documentation, and technical decision-making.

Required Qualifications

• 5+ years of software development experience using Python, Java, or similar modern programming languages.
• 2-3 years of Git source control experience in a collaborative development environment.
• 2-3 years of SQL and relational database development experience.
• 1-2 years of experience with containerization and orchestration technologies such as Docker, Podman, or Kubernetes.
• Proficiency in shell scripting for automation and operational support.
• 2-3 years of experience with unit testing frameworks such as Pytest or JUnit.
• Understanding of fixed income concepts including duration, convexity, spread, and option-adjusted spread (OAS).
• Strong communication, analytical, and problem-solving skills.
• Experience working in Agile environments.

Preferred Qualifications

• Graduate degree in Computer Science, Mathematics, Statistics, or related quantitative field.
• Knowledge of GAAP accounting principles, including revenue recognition, expense recognition, and amortization.
• CFA, FRM, CPA, or significant progress toward certification.
• Experience working directly with business stakeholders and gathering requirements.
• Exposure to project management and tracking tools such as JIRA.
• Strong written and verbal communication skills.