Temporary Prompt Engineer Jobs in Illinois (NOW HIRING)

Description
A large enterprise insurance company is seeking to add an AI/ML Engineer who can bridge modern AI technologies with legacy insurance platforms. This individual will play a critical role in transforming legacy Micro Focus COBOL and underwriting systems into modern, scalable AI-enabled solutions while serving as a technical lead, mentor, and modernization strategist.
The ideal candidate combines hands-on AI/ML development experience with a strong understanding of legacy environments, particularly mainframe and Micro Focus COBOL ecosystems. They will support and enhance existing AI-driven document summarization capabilities while helping define the next generation of underwriting and policy administration solutions.
They have very recently developed AI/ML workflows. Some of the APIs provide data and this side of AWS plus the prompt engineering side of it. Lambdas, Terraform code, API on data science side invoke the LLM. The LLM process joined with the prompts creates a summary of 2 pages and puts that back into the Java APIs.
This person will be mentoring and training on the AI strategy in this area for all of Life Underwriting
Machine Learning Engineer with proven experience in legacy transformations (mainframe, Micro Focus COBOL, Linux)
Experience working with or integrating AI/ML tools, APIs, or platforms (e.g., OpenAI API, Azure AI, AWS Bedrock, or similar)
Experience with prompt engineering and fine-tuning techniques
Solid understanding of legacy software development and deployment practices
Strong proficiency in Linux, Java, Spring, Python, REST API development
Solid understanding of modern software development workflows including CI/CD, version control (Git), and code review practices
Familiarity with IDE ecosystems and developer tooling (e.g., VS Code extensions, CLI tools)
Strong problem-solving skills and ability to work independently as well as collaboratively
Skills
Java, aws, terraform, artificial intelligence, machine learning, large language model, cobol
Additional Skills & Qualifications
Experience with Cobol and mainframe legacy applications / familiarity when modernizing platforms
Experience Level
Intermediate Level
Job Type & Location
This is a Contract position based out of Bloomington, IL.
Pay and Benefits
The pay range for this position is $50.00 - $70.00/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 remote position.
Application Deadline
This position is anticipated to close on Aug 20, 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.
San Francisco Fair Chance Ordinance: Pursuant to the San Francisco Fair Chance Ordinance, for all positions located in the city and county of San Francisco, we will consider for employment qualified applicants with arrest and conviction records.
Massachusetts Lie Detector: It is unlawful in Massachusetts to require or administer a lie detector test as a condition of employment or continued employment. An employer who violates this law shall be subject to criminal penalties and civil liability.
Use of Artificial Intelligence (AI): We may use Artificial Intelligence (AI) to support parts of our hiring process, including sourcing, screening, and evaluating candidates. AI helps assess applications and qualifications, but final decisions are made by our hiring team. By applying, you acknowledge and agree that your application may be reviewed using AI tools.