Senior Python Engineer: ETF Analytics & Front-Office Tools

KTek Resourcing LLC; Downers Grove (IL); On-site; USD 120,000 - 180,000; Full time

Job summary

KTek Resourcing LLC is assisting a client in Downers Grove, IL to hire a Senior Python Engineer for 2–3 days/week on-site at the client office in the Chicago area. The role focuses on building production-grade Python applications and modernizing legacy tools used by portfolio managers and front-office staff.

You will join a small engineering team led by a Lead Python Engineer, collaborating directly with business stakeholders, PMs and traders.

Qualifications

• 5+ years of hands-on, production Python development.
• ETF or investment front-office experience with portfolio managers or traders.
• Experience modernizing legacy or business-built applications.
• Strong SQL and experience with cloud platforms (AWS preferred).
• API design and integration, automated testing, CI/CD, Git.
• Ability to gather requirements directly from business users and communicate with non-technical stakeholders.
• Willing to work on-site in Downers Grove 2-3 days/week.

Responsibilities

• Design, develop and maintain production-grade Python applications and APIs.
• Refactor and modernize Python/Excel tools built by business teams; add tests, structure, security and observability.
• Work directly with portfolio managers and front-office users to clarify requirements and validate results.
• Build data-intensive features on SQL and cloud data platforms.
• Contribute to CI/CD, automated testing and code reviews.
• Apply AI-assisted development practices where they improve speed and quality.

Skills

Python programming

ETF front-office experience

SQL

AWS

API design

CI/CD

Git

Tools

Snowflake

Redshift

Databricks

BigQuery

Job description

KTek Resourcing LLC is assisting a client in Downers Grove, IL to hire a Senior Python Engineer for 2–3 days/week on-site at the client office in the Chicago area. The role focuses on building production-grade Python applications and modernizing legacy tools used by portfolio managers and front-office staff.

You will join a small engineering team led by a Lead Python Engineer, collaborating directly with business stakeholders, PMs and traders.