Senior Software Engineer, AIML
Chicago, IL - USA
Job Summary
You have a clear vision of where your career can go. And we have the leadership to help you get there.At CNA we strive to create a culture in which people know they matter and are part of something important ensuring the abilities of all employees are used to their fullest potential.
We are looking for a highly skilled Senior Python AI Developer with deep expertise in building intelligent agents using Google Vertex AI particularly with Gemini or OpenAI models. The ideal candidate has a strong foundation in Large Language Models and understands how they work under the hood combined with experience in evaluating model performance through structured testing methodologies. This role requires proficiency in the technical aspects of agent development while adhering to best practices in prompt engineering context filtering and security-aware prompting. The candidate should also have hands-on experience with modern agent frameworks and observability tools ensuring robust scalable and reliable AI solutions.JOB DESCRIPTION:
Essential Duties & Responsibilities:
Performs a combination of dutiesin accordance withdepartmental guidelines:
Evaluates defined client area requirements and processes (e.g. new enhancements or maintenance) and detailed designs and develops moderate to complex application program solutions.
Ensures quality of application solutions by performing code review with peers creating documentation implementing code verifying program logic performing defect root cause analysis and completing unit and integration testing. Participates in systems testing with other IT staff.
Assists with thehigh leveldesign of solutions. Consults with the client area to analyze system requirements and capabilitiesidentifyassociated risks and resolve problems. May act as a liaison between clients and applications area.
Researches andevaluatesnew and/or alternativesolutions andrecommends the most efficient andcost effectivesolution for the systems/program design anddevelopssystem specifications and procedures. May include integrating vendor applications and consulting resources into existing applications and resources.
In conjunction with operations area technical staff supports the implementation of the application into production and testing environments. May confer with technical personnel toidentifyand resolve issues.
Reporting Relationship:Typically Manager or above
SkillsKnowledgeand Abilities
Key Required Skills & Experience:
Senior-levelproficiencyin Python with experience in AI/ML development
Strong understanding of Large Language Models (LLMs) and their operational mechanics
Experience developing AI Agents on Google Vertex AI using Gemini or OpenAI
Expertisein Prompt Engineering Best Practices
Hands-on experience with:
Google Agent Development Kit
LangChainandLangGraph
Knowledge of Context Filtering and Prompting Security Best Practices
Familiarity with observability and debugging tools:
LangSmith
LangFuse
Phoenix orArize
Experience with Eval AI Testing and model evaluation workflows
Education and Experience
1.Bachelors degree in Computer Science or related discipline or equivalent work experience.
2.Typicallyaminimumfour years of application program development experience.
3. Applicable certificates preferred.
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In certain jurisdictions CNA is legally required to include a reasonable estimate of the compensation for this District of Columbia California Colorado Connecticut Illinois Maryland Massachusetts New York and Washington the national base pay range for this job level is $72000 to $141000 determinations are based on various factors including but not limited to relevant work experience skills certifications and location. CNA offers a comprehensive and competitive benefits package to help our employees and their family members achieve their physical financial emotional and social wellbeing goals. For a detailed look at CNAs benefits please visit.
CNAutilizesAI-enabled technology during the recruiting process. For more information please visitourcareers page.
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Required Experience:
Senior IC