KTek Resourcing
Python Developer
Downers Grove, Illinois, US
Role snapshot
KTek Resourcing is hiring a Python Developer on a full-time basis. This is an on-site role based in Downers Grove, Illinois, US.
- Company
- KTek Resourcing
- Location
- Downers Grove, Illinois, US
- Work mode
- On-site
- Job type
- Full-time
- Posted
- Nov 5, 2026
Who this role suits
The listing does not state a required experience level here. Read the requirements in the description below and apply if they match your background.
How to prepare your application
- Match your résumé to the requirements in the description, using the same wording where it is honest to do so.
- Prepare a short example for each requirement you meet, and be ready to explain any you only partly meet.
- Read what KTek Resourcing publishes about its product or team, so you can say clearly why this role and this company.
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About the role
Position :: Senior Python Engineer
Location :: Downers Grove, IL (Chicago area) On-site at the client’s office
3 days/week – Work from client office
Mandatory- Investment Platform (ETF) either investment or ETF knowledge is a MUST- USA
A leading global investment management organization is modernizing business-critical ETF and investment analytics applications. Many of these tools were originally built by business teams in Python and Excel. The work is to turn them into resilient, production-grade applications, in close collaboration with portfolio managers and front-office users.
Team
A small, hands-on engineering team led by a Lead Python Engineer. You will work alongside the client’s internal engineering team and directly with business stakeholders. There is limited BA support.
Position overview
A Senior Python Engineer who writes production code every day. You will build new components and refactor business-built tools into well-engineered applications. You will work directly with portfolio managers to understand how the tools are used and what must not break. This is a 100% hands-on role, not advisory or architectural.
Requirements
- 5+ years of hands-on, production Python development. Python is the main language in your current role.
- ETF or investment front-office experience (asset management, investment banking, capital markets). At minimum, you have worked directly 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.
- You gather requirements directly from business users and communicate clearly with non-technical stakeholders.
- Willing to work on-site in Downers Grove 2-3 days/week.
Nice to have
- Fixed income ETFs, portfolio management or investment analytics.
- Aladdin, BNY or comparable investment platforms.
- Snowflake, Redshift, Databricks or BigQuery.
- AI-enabled development, agentic workflows, AI-assisted SDLC.
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 and analytics 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.