Assistant Python Jobs in Manassas, VA (NOW HIRING)

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Please find the job details below:

Job Title: Senior Full-Stack Python Developer
Location: McLean, VA

Must Have Qualifications:

• At least 5 years of hands-on software development experience using a modern programming language (e.g., Python, Java, or C#).

• Experience with Git version control, SQL, Pandas, and Unit Testing.

• Preferred: Shell scripting, financial domain experience with fixed income knowledge.

• Graduate degree in Computer Science or related STEM discipline preferred.

• Certifications such as CFA, FRM, or CPA are a plus.

Schedule: Standard

Shortlisting Deadline: 06/26

Interview Information:

• Rounds: 2 Rounds

• Duration:

  • Round 1: 120 Minutes

  • Round 2: 30 Minutes

• Interview Type:

  • Round 1: Onsite

  • Round 2: TBD

Interview Schedule:

• Targeting onsite interviews during the week of 07/01 and 07/02.

Interview Debrief:

• 07/06 @ 4:30 PM (No suppliers)

Supplier Vetting Questions:

1. How do you handle challenges or difficult situations? Please provide an example.

2. How do you set goals? Please provide an example of a goal you've reached recently.

Financial Engineering: Senior Software Developer (Specializing Financial Accounting Applications) - CW

Position Overview

Freddie Mac’s Investments & Capital Markets division is currently seeking a Senior Software Developer who can contribute to the firm’s enterprise forecasting platform that supports long-term financial projections, enabling strategic planning and decision-making.

The developer will be involved in developing and enhancing core features of the forecasting engines to improve model accuracy, performance, and scalability, as well as providing support for critical quarterly/yearly production runs used in financial reporting to ensure the integrity, accuracy, and timeliness of outputs. The developer will also collaborate closely with FP&A and other stakeholders to implement new forecasting capabilities, support scenario analysis, and meet evolving business and regulatory requirements.

Responsibilities

• Refactor and modernize existing components of the financial accounting and forecasting application to improve maintainability, performance, and scalability.

• Develop and enhance core forecasting engine features to improve model accuracy, runtime efficiency, and enterprise readiness.

• Support critical quarterly production runs for financial reporting by monitoring execution, troubleshooting issues, and ensuring integrity, accuracy, and timeliness of outputs.

• Diagnose and resolve defects, reduce technical debt, and drive continuous improvements aligned with software engineering best practices.

• Write clean, robust, high-quality code supported by automated unit and integration testing.

• Coordinate with team members across data, services, APIs, and infrastructure layers to deliver end-to-end solutions.

• Partner with FP&A and stakeholders to implement forecasting capabilities, scenario analysis, and regulatory requirements.

• Assist with infrastructure upgrades, platform migrations, and adoption of new technologies.

• Participate in design discussions, code reviews, and documentation efforts.

Qualifications

• 5+ years of hands-on software development experience using Python, Java, or similar modern programming languages.

• 2–3 years of Git source control experience in a collaborative team 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, troubleshooting, 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, critical thinking, and problem-solving skills.

• Familiarity with Agile development methodologies.

Preferred Skills

• Graduate degree in Computer Science, Mathematics, Statistics, or related quantitative discipline.

• Strong understanding of GAAP accounting fundamentals including revenue/expense recognition and amortization.

• CFA, FRM, CPA certification, or significant progress toward certification.

• Experience working with business stakeholders to gather requirements and drive delivery.

• Exposure to project management and Agile tools such as JIRA.