Junior Data Engineer

TransMarket Group; Chicago (IL); On-site; USD 110,000 - 165,000; Full time

Job summary

TransMarket Group in Chicago is seeking a Data Engineer to build and support production-quality data pipelines and tools for our proprietary trading business. You will work closely with developers, traders, operations, and finance to ensure data is accurate, timely, and accessible.

The role offers hands-on learning with Python, SQL, Linux, APIs, data modeling, and finance systems, plus an ownership mindset in a fast-paced, entrepreneurial setting in our on-site office.

Qualifications

• BA/BS/MS in Computer Science, Computer Engineering, or equivalent experience.
• Strong Python skills and proficiency with SQL.
• Experience with Linux environments and RESTful APIs.
• Familiarity with data modeling and high-performance data systems.
• Experience with Git version control; Docker and Airflow are a plus.

Responsibilities

• Work with senior developers to learn data engineering for the trading business.
• Develop, maintain, and support production-grade data pipelines and components.
• Build expertise in Python, SQL, data modeling, and finance systems.
• Collaborate with technology, trading, operations, and finance teams.

Skills

Python

SQL

Linux

RESTful APIs

Data modeling

Education

BA/BS/MS in Computer Science or related field

Tools

Git

Docker

Airflow

Job description

Who We Are

Founded in 1980 as Aardvark Financial, TransMarket Group (TMG) is a privately held global markets proprietary trading firm in Chicago. We use next-generation technology to capture opportunities around the world and manage risk in financial markets. Our mission is to bless others through the services we provide and through the generous stewardship of the wealth we create.

TMG is a well-established and profitable business as a respected member of the global financial system for over 40 years, but also is like a startup because the potential of our group is at least one order of magnitude greater than what we are currently producing. We have an entrepreneurial culture and collaboratively develop our business with patience and discipline; we work hard, learn constantly, and relentlessly improve our expertise.

Description

Our Data Engineering team designs, builds, and supports the data systems that power our proprietary trading business. This smaller, focused team works closely with software developers, traders, operations, and accounting/finance teams to make high-quality data accessible, reliable, and actionable across the firm. You will help develop production-quality pipelines, services, databases, and tools that support trading operations, reporting, research, and automation. The role offers a high degree of ownership and hands‑on learning, with exposure to Python, SQL, Linux, APIs, data modeling, and financial systems. The components you work on will help ensure that critical business and trading data is accurate, timely, and dependable.

Responsibilities

• Work with senior developers to assist in and learn all facets of data engineering and development applied to the business


• Develop, code, maintain, and support production-quality components for global proprietary trading


• Develop expertise in data engineering principles, Python, SQL, and high-performance finance systems


• Collaborate with technology, software, trading, business, and accounting/finance teams

Requirements

• BA/BS/MS in Computer Science, Computer Engineering, or equivalent experience


• Strong Python skills


• Proficiency with SQL and relational database design


• Comfort working in a Linux environment


• Source control with Git


• Knowledge of RESTful API design


• Docker/containerization


• This position requires physical presence and is on‑site (no remote work)

Good to have

• C++


• Workflow orchestration (Airflow)


• Experience integrating LLMs or AI tooling into engineering workflows


• Exposure to financial markets, trading operations, or clearing


• Dashboard design and data visualization

Benefits

We offer one of the most generous profit sharing programs in the industry because we believe our employees should be able to take part in our rapid growth and success. We are proud to offer more world‑class benefits for our full‑time employees and their families.

TransMarket Group is an equal opportunity employer. All qualified applicants will receive consideration for employment without regard to race, color, gender, sexual orientation, gender identity or expression, religion, national origin, marital status, age, disability, veteran status, genetic information, or any other protected status.