Senior Python/FastAPI Engineer

We are seeking an experienced Senior Python/FastAPI Engineer to design, develop, and deploy high-volume, distributed applications within an Agile environment. The ideal candidate has deep technical expertise in backend engineering, event-based architectures, API development, and relational database design.
You will contribute to story refinement, lead development of new features, and collaborate with cross-functional teams to deliver high-quality, scalable solutions.

Responsibilities

• Contribute to story refinement and the definition of technical requirements.
• Perform spikes/proof of concepts to mitigate risk or evaluate new ideas.
• Develop code and unit tests to deliver user stories aligned with acceptance criteria and compliance standards.
• Utilize multiple architectural components (data, application, business) in design and development.
• Assist the team in resolving complex technical challenges.
• Design, develop, and modify architectural components, application interfaces, and solution enablers while maintaining overall architecture integrity.
• Build and maintain automated test suites (integration, regression, performance).

Mandatory Skills

• Extensive experience designing, developing, and deploying multi-tiered, distributed, high-volume transactional applications.
• Deep expertise in Python and FastAPI (or similar frameworks).
• Strong knowledge of PostgreSQL and relational database concepts.
• Strong understanding of Git version control.
• Experience with unit testing frameworks.
• Solid understanding of the Agile methodology and the Software Development Lifecycle (SDLC).
• Proficiency in SQL, data modeling, query optimization, and working with SQL objects.
• Experience with component-based web application frameworks.
• Strong understanding of Object-Oriented Programming and SOLID design principles.
• Excellent verbal and written communication skills, especially with cross-functional technical teams.

Skills

Primary: Python, FastAPI, PostgreSQL, API Development, Agile, Software Development
Additional: .NET, Kafka, Cybersecurity

Top Skills

1. Python
2. FastAPI
3. PostgreSQL
4. Software Development
5. Agile
6. API Development

Desired / Bonus Skills

• Experience designing event-based integration services with Kafka, RabbitMQ, or similar message brokers.
• Familiarity with cyber security workflows, solutions, or implementation.
• Experience with:
  • .NET Core
  • Jenkins
  • MSBuild
  • Ansible
  • XLR
  • Automated testing frameworks

Experience Level

Expert Level

Compensation & Benefits Disclaimer

We reserve the right to pay above or below the posted wage based on factors unrelated to sex, race, or any other protected classification.
Eligibility requirements apply to some benefits and may depend on your job classification and length of employment. Benefits are subject to change and may be subject to specific elections, plan, or program terms. This temporary role may be eligible for the following:

• Medical, dental & vision
• 401(k)/Roth
• Insurance (Basic/Supplemental Life & AD&D)
• Short and long-term disability
• Health & Dependent Care Spending Accounts (HSA & DCFSA)
• Transportation benefits
• Employee Assistance Program
• Time Off/Leave (PTO, Vacation or Sick Leave)

Job Type & Location
This is a Contract position based out of Denver, CO.
Pay and Benefits
The pay range for this position is $68.26 - $68.26/hr.
Eligibility requirements apply to some benefits and may depend on your job classification and length of employment. Benefits are subject to change and may be subject to specific elections, plan, or program terms. If eligible, the benefits available for this temporary role may include the following: Medical, dental & vision Critical Illness, Accident, and Hospital 401(k) Retirement Plan - Pre-tax and Roth post-tax contributions available Life Insurance (Voluntary Life & AD&D for the employee and dependents) Short and long-term disability Health Spending Account (HSA) Transportation benefits Employee Assistance Program Time Off/Leave (PTO, Vacation or Sick Leave)
Workplace Type
This is a fully onsite position in Denver,CO.
Application Deadline
This position is anticipated to close on Jan 28, 2026.
>About TEKsystems:
We're partners in transformation. We help clients activate ideas and solutions to take advantage of a new world of opportunity. We are a team of 80,000 strong, working with over 6,000 clients, including 80% of the Fortune 500, across North America, Europe and Asia. As an industry leader in Full-Stack Technology Services, Talent Services, and real-world application, we work with progressive leaders to drive change. That's the power of true partnership. TEKsystems is an Allegis Group company.

The company is an equal opportunity employer and will consider all applications without regards to race, sex, age, color, religion, national origin, veteran status, disability, sexual orientation, gender identity, genetic information or any characteristic protected by law.

About TEKsystems and TEKsystems Global Services

We're a leading provider of business and technology services. We accelerate business transformation for our customers. Our expertise in strategy, design, execution and operations unlocks business value through a range of solutions. We're a team of 80,000 strong, working with over 6,000 customers, including 80% of the Fortune 500 across North America, Europe and Asia, who partner with us for our scale, full-stack capabilities and speed. We're strategic thinkers, hands-on collaborators, helping customers capitalize on change and master the momentum of technology. We're building tomorrow by delivering business outcomes and making positive impacts in our global communities. TEKsystems and TEKsystems Global Services are Allegis Group companies. Learn more at TEKsystems.com.

The company is an equal opportunity employer and will consider all applications without regard to race, sex, age, color, religion, national origin, veteran status, disability, sexual orientation, gender identity, genetic information or any characteristic protected by law.