Job#: 3028948 Job Description: If you are interested in applying to this opportunity, please send resumes to Rachel Berardino, .
Role 1: Senior GenAI / NLP Architect (Hybrid- Chicago)Role SummaryThe Senior GenAI / NLP Architect will serve as the technical lead for the initiative, responsible for solution architecture, GenAI design decisions, and hands-on delivery of core components. This individual will work closely with Network Planning stakeholders, partner teams (MARS, Cloud Engineering, Security), and provide technical mentorship to the broader team.
Location & Working Model- Chicago-based
- Onsite 2-3 days per week (flexible; approximately 5-6 days per month minimum)
Key Responsibilities- Lead architecture and design of a scalable, multi-agent GenAI solution aligned to United standards.
- Design and implement LLM-based NLP solutions leveraging existing knowledge bases and structured reports.
- Define agent orchestration patterns, prompt strategies, routing logic, and response traceability.
- Collaborate with United's MARS platform team to ensure proper use of approved models, guardrails, and deployment patterns.
- Deliver initial use cases end-to-end into production, including design, build, testing, and release.
- Provide technical guidance and knowledge transfer to Network Planning team members.
- Participate in technical interviews and contribute to evaluating additional GenAI resources as needed.
Required Skills & Experience- Strong experience designing and implementing GenAI / NLP solutions using LLMs.
- Hands-on experience with pre-trained language models and prompt engineering.
- Experience designing cloud-based architectures (AWS preferred).
- Familiarity with multi-agent or agent-orchestrated AI patterns.
- Proficiency in Python; Julia experience strongly preferred (or willingness to ramp quickly).
- Ability to work within enterprise AI governance, security, and compliance constraints.
Nice to Have- Machine Learning background (to support future diagnostic and optimization use cases).
- Experience explaining AI outputs to non-technical stakeholders.
Apex Systems is a world-class IT services company that serves thousands of clients across the globe. When you join Apex, you become part of a team that values innovation, collaboration, and continuous learning. We offer quality career resources, training, certifications, development opportunities, and a comprehensive benefits package. Our commitment to excellence is reflected in many awards, including ClearlyRated's Best of Staffing in Talent Satisfaction in the United States and Great Place to Work in the United Kingdom and Mexico. Apex uses a virtual recruiter as part of the application process. Click for more details.
Apex Benefits Overview: Apex offers a range of supplemental benefits, including medical, dental, vision, life, disability, and other insurance plans that offer an optional layer of financial protection. We offer an ESPP (employee stock purchase program) and a 401K program which allows you to contribute typically within 30 days of starting, with a company match after 12 months of tenure. Apex also offers a HSA (Health Savings Account on the HDHP plan), a SupportLinc Employee Assistance Program (EAP) with up to 8 free counseling sessions, a corporate discount savings program and other discounts. In terms of professional development, Apex hosts an on-demand training program, provides access to certification prep and a library of technical and leadership courses/books/seminars once you have 6+ months of tenure, and certification discounts and other perks to associations that include CompTIA and IIBA. Apex has a dedicated customer service team for our Consultants that can address questions around benefits and other resources, as well as a certified Career Coach. You can access a full list of our benefits, programs, support teams and resources within our 'Welcome Packet' as well, which an Apex team member can provide.
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