Lead Python Developer

Position Title: Lead Python Developer

Duration: 6 months

Location: Onsite in McLean, VA – 5 days a week

Work Authorization: H1B GC

About the Role:

• This role requires strong OOP skills in Python, rather than simple scripting, knowledge od Standard Python libraries such as Pandas, NumPy etc.
• Any Python frameworks such as Flask, FastAPI etc.
• This role focusses on automating data workflows by processing files from upstream systems or users, working with datasets of varying sizes, and ensuring seamless data integration. The candidate will collaborate with business stakeholders to deliver automation solutions, primarily using Python for input and data processing.
• The majority of the development is in Python. The role involves 70% hands on coding and 30% design.
• The candidate will be responsible for:
• Input/data automation (not core engine development)
• Integration with existing Java-based systems
• Working with both large and small datasets
• Collaborating with business stakeholders.

Must Have Qualifications: Candidate must have 5+ years of hands-on experience with Python, along with experience in Git version control, SQL, and unit testing.

Nice to have: Java

Overview:

The Client is currently seeking a Sr. 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 to ensure alignment with software engineering best practices.
• Write clean, robust, high-quality code following best practices, supported by automated unit and integration tests with strong coverage.
• Coordinate with team members across different layers of the stack (data, services, APIs, and infrastructure) to deliver end-to-end solutions.
• Partner with FP&A and other stakeholders to implement new forecasting capabilities, enable scenario analysis, and meet evolving business and regulatory requirements.
• Assist with infrastructure upgrades, platform migrations, and adoption of new technologies to improve reliability, security, and operational efficiency.
• Contribute to design discussions, code reviews, and documentation; demonstrate a commitment to collaborative problem-solving, thoughtful design, and high-quality deliverables.

Qualifications:

• At least 5 years of hands-on software development experience using a modern programming language (e.g., Python, Java).
• 2 – 3 years of experience using Git for source control in a team-based development environment.
• 2 – 3 years of experience with SQL and relational database development.
• 1 – 2 years of experience with containerization and orchestration technologies (e.g., Docker, Podman, Kubernetes).
• Proficiency with shell scripting for automation, troubleshooting, and operational support.
• 2 – 3 years of experience with unit testing frameworks (e.g., Pytest, JUnit) and implementing automated test coverage.
• An understanding of fixed income concepts, including duration, convexity, spread, and option-adjusted spread (OAS).
• Good oral and written communication skills.
• Strong critical thinking, problem-solving skills, business acumen, and familiarity with Agile development processes.

Preferred Skills:

• Graduate degree in a quantitative discipline (e.g., Computer Science, Mathematics, Statistics, or related field).
• Strong understanding of GAAP accounting fundamentals, including revenue/expense recognition and amortization.
• CFA/FRM (or significant progress toward CFA/FRM/CPA).
• Strong oral and written communication skills, with the ability to clearly articulate technical and business concepts.
• Experience engaging with stakeholders to gather requirements, align on priorities, and drive delivery.
• Exposure to product and project management tools (e.g., JIRA) to support planning, tracking, and execution.

Compensation: 75-85/hr on w2, 80-92/hr on c2c. This is the targeted compensation range for this role. Please note that this range is provided as a guideline and the final offer will be based on several factors, including but not limited to, skillset and competencies, level of experience, education, certifications, and location.

Benefits: We offer a benefits package including medical, dental, vision, and 401(k).

Work Authorization: Work sponsorship is not available for this position.

Equal Employment Opportunity: We are an equal opportunity employer. We do not discriminate on the basis of race, color, religion, sex, national origin, age, disability, genetic information, veteran status, sexual orientation, gender identity, or any other characteristic protected by applicable federal, state, or local law.