Job Description
Johnson Service Group (JSG) is currently looking for an Agentic AI / Machine Learning Engineer with production ML, large language model, and tool-calling agent development experience. This is a contract opportunity with a financial services client seeking an experienced engineer to build and deploy secure, reliable agentic AI systems that support production diagnostics, automation, and remediation. (Hybrid- Dallas or NY)
Must Have skills
- 5+ years of software development experience in one or more languages, including Python, C/C++, Go, or Java.
- 3+ years designing, architecting, testing, and launching production ML systems, including model deployment and serving, evaluation, monitoring, data processing pipelines, and fine-tuning workflows.
- Practical LLM experience covering API integration, prompt engineering, fine-tuning or adaptation, and applications using retrieval-augmented generation (RAG) and tool-using agents.
- Experience with vector retrieval, function calling, and secure tool execution.
- Understanding of commercial and open-source LLMs and their capabilities, including OpenAI, Gemini, Llama, Qwen, and Claude.
- Solid understanding of applied statistics, core ML concepts, algorithms, and data structures.
- Strong analytical problem-solving skills, ownership, and urgency, with a focus on measurable business impact.
- Ability to communicate complex ideas clearly and collaborate effectively across global teams.
Nice to Have skills
- Strong hands-on experience building and maintaining large-scale Python applications.
- Proficiency building and operating cloud infrastructure, ideally AWS.
- Experience with containerized services using ECS/EKS, serverless computing using Lambda, and data services including S3, DynamoDB, and Redshift.
- Experience with Step Functions, SageMaker, and Infrastructure as Code using Terraform or CloudFormation.
Responsibilities
- Design and implement tool-calling agents that combine retrieval, structured reasoning, and secure action execution using Model Context Protocol (MCP).
- Implement function calling, change orchestration, policy enforcement, and least-privilege access controls.
- Build evaluation frameworks for open-source and foundation LLMs, including prompt synthesis, response validation, and self-correction loops.
- Integrate agents with observability, incident management, and deployment systems to support automated diagnostics, runbook execution, remediation, and post-incident summaries with full traceability.
- Partner with production engineers and application teams to define agentic AI roadmaps and measurable objectives tied to reliability, risk reduction, and cost.
- Implement validator models, adversarial prompts, policy checks, deterministic fallbacks, circuit breakers, and rollback strategies.
- Build RAG pipelines, curate domain knowledge, validate data quality, and establish feedback loops and milestones to maintain knowledge freshness.
Johnson Service Group (JSG) is an Equal Opportunity Employer. JSG provides equal employment opportunities to all applicants and employees without regard to race, color, religion, sex, age, sexual orientation, gender identity, national origin, disability, marital status, protected veteran status, or any other characteristic protected by law.
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Numbers & Facts
| Location | New York, NY |
| Industry | Staffing/Employment Agencies |
| Salary | $65–$80 Per Hour |
| Company Size | 1,000 to 1,499 employees |
| Year Founded | 1984 |
| Website | https://www.jsginc.com/ |
About Company
At JSG, We Understand People
It is our mission to empower people, help our clients reach their goals, and hire motivated individuals.
Since our start in 1984, we’ve worked hard to establish our present position as the most effective cross-industry staffing and consulting solution available.
Headquartered in Chicago, IL with local offices throughout the United States and Canada, JSG proudly serves a diverse range of industries with the right solutions to help clients reach their company goals. Our client-centric approach enables us to create personalized solutions for businesses in need of top-tier talent. Our dedication doesn’t stop at our clients. We strive to connect candidates with opportunities that match their skills and goals. More than just a go-between, we are a dependable bridge, uniting top talent with suitable opportunities, facilitating shared opportunities and growth.
Skills
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