Description The Back-End Developer will join a team responsible for exploring new ideas, validating feasibility, and rapidly producing prototypes. This role is focused on building backend services, APIs, and integration layers that connect application prototypes to LLMs, cloud services, and internal data. The engineer will work closely with front-end developers and business SMEs to create functional prototypes that test new concepts in diet formulation, feed management, agentic AI workflows, and other innovative areas. This role emphasizes modularity, speed, and lightweight architecture, not production-scale engineering. Skills 1\\. LLM Integration Experience (Must Have) o Experience calling, orchestrating, or integrating with LLM APIs o Understanding of how LLMs operate at a functional level 2. Strong C# Backend Engineering o Experience building modular APIs, libraries, and backend services o Strong grasp of cloud level API design and Web era patterns 3. Modern Software Engineering Principles o 12 factor app mindset o Modular architecture, event/message passing o API-first backend design 4. API Integration & Data Connectivity o Proven experience building backend layers that connect apps to data sources 5. POC Focused Engineering o Ability to rapidly build lightweight architectures for fast validation, MCP (Model Context Protocol) experience, Exposure to machine learning concepts, Experience in innovation labs, AI discovery teams, or rapid prototyping groups, Familiarity with Foundry or agentic AI workflows Top Skills Details 1\\. LLM Integration Experience (Must Have) o Experience calling, orchestrating, or integrating with LLM APIs o Understanding of how LLMs operate at a functional level 2. Strong C# Backend Engineering o Experience building modular APIs, libraries, and back Experience Level Intermediate Level Job Type & Location This is a Contract position based out of Wayzata, MN. Pay and Benefits The pay range for this position is $60.00 - $90.00/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 hybrid position in Wayzata,MN. Application Deadline This position is anticipated to close on Mar 30, 2026. h4>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 Were 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. Were 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. Were strategic thinkers, hands-on collaborators, helping customers capitalize on change and master the momentum of technology. Were 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.

The role requires LLM Integration Experience, including calling, orchestrating, or integrating with LLM APIs and understanding how LLMs operate at a functional level. Strong C# Backend Engineering is necessary, with experience building modular APIs, libraries, and backend services, along with a strong grasp of cloud-level API design and web era patterns. Modern Software Engineering Principles, such as a 12-factor app mindset, modular architecture, event/message passing, and API-first backend design, are also required. Proven experience building backend layers that connect applications to data sources is essential. The position emphasizes POC Focused Engineering, with the ability to rapidly build lightweight architectures for fast validation.