AI Engineer

Job Description

Antares Capital is seeking an AI Engineer to join our Data & Analytics Technology team. In this hands-on role, you will design, build, and operate production-grade AI capabilities that power decision-making across the firm—with a focus on Retrieval-Augmented Generation (RAG), vector database–backed retrieval, and the orchestration of multiple Large Language Models (LLMs). You will help shape our AI architecture to be agile, flexible, and built to last—emphasizing modularity, reliability, and secure-by-design practices appropriate for financial services. The ideal candidate brings 3+ years of experience delivering AI/ML solutions (including 2+ years with LLM-based systems), a strong engineering and architecture mindset, and a passion for responsible innovation in a regulated environment.

Responsibilities

• Design and implement robust RAG pipelines integrating domain datasets, embeddings, and retrieval strategies to deliver accurate, auditable responses.
• Lead the evaluation and integration of vector databases (e.g., FAISS, Pinecone, Milvus) and tune indexing/embedding strategies for performance and relevance.
• Architect and orchestrate combinations of LLMs and tools (routing, ensemble prompts, function-calling, guardrails) to optimize quality, latency, and cost.
• Drive an ontology-driven approach: model and map enterprise data to real-world business concepts (e.g., customers, counterparties, facilities, equipment) rather than siloed technical tables; steward canonical vocabularies, taxonomies, and knowledge graphs.
• Partner with data and platform teams to establish and evolve a semantic layer that aligns data products with business entities, definitions, and policies; ensure traceability from ontology to physical data stores.
• Contribute to and extend the AI reference architecture emphasizing modular services, clear interfaces, observability, and change-tolerant design.
• Develop secure data access patterns (role-based permissions, PII minimization) and implement content filtering, redaction, and safety controls.
• Build evaluation frameworks (automated tests, offline/online metrics, human-in-the-loop review) and maintain datasets for regression benchmarking.
• Implement CI/CD and containerization for AI services; instrument telemetry, tracing, and feature flags for safe progressive delivery.
• Collaborate with product, data, risk, and security teams to translate business needs into pragmatic AI solutions aligned to industry compliance and model risk management.
• Troubleshoot production issues, conduct post-incident reviews, and drive reliability improvements (SLOs, error budgets, resilience testing).
• Mentor engineers, review designs/code, and champion engineering excellence and documentation across the AI platform.

Qualifications

• 5+ years of industry experience building and deploying AI/ML applications, including 2+ years with LLM-based systems (preferably in financial services).
• Hands-on expertise with RAG: embedding generation, retrievers, prompt construction, context management, and hallucination mitigation.
• Deep understanding of vector databases and embedding frameworks; ability to tune similarity search (cosine, dot-product) and index parameters.
• Proven experience with ontology-driven data modeling (business entities, taxonomies, knowledge graphs, semantic modeling) and mapping from physical schemas to conceptual models. Any experience with 3rd party platform (eg: Palantir/Foundry) implementations is a plus. 
• Fluency in Python and production-grade services (microservices, REST/GraphQL, event-driven patterns); strong software engineering fundamentals.
• Proficiency with big data and machine learning platforms such as Databricks (Spark, Delta Lake, Unity Catalog) and experience operating at scale.
• Experience with large-scale cloud data/AI solutions, including Microsoft Fabric (OneLake, Lakehouse, semantic models, pipelines) or equivalent enterprise data/AI fabric, and common cloud services (Azure preferred).
• Grounding LLMs with curated, versioned knowledge sources; experience with data pipelines and ETL/ELT concepts.
• Strong grasp of evaluation, observability, and MLOps for LLMs (dataset management, A/B testing, drift/quality monitoring, prompt/version governance).
• Practical experience with CI/CD, Docker/containers, and infrastructure-as-code (Terraform or equivalent).
• Awareness of financial-industry considerations: data privacy, model risk/governance, auditability, and secure development practices.
• Excellent communication skills and the ability to influence and collaborate across product, platform, data, and risk/security teams.

The Fine Print

• Must have unrestricted authorization to work in the United States.
• Must be willing to comply with pre-employment screening, including but not limited to drug testing, reference verification, and background check.
• Role may be hybrid/onsite at an Antares office; occasional travel as necessary.

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A reasonable estimate of the current base salary range at the time of posting is below. Base salary does not include other forms of compensation or benefits. Actual base salary within the specified range is comprised of several components, including but not limited to applicant's skill, prior relevant experience, specific degrees and certifications, job responsibilities, market considerations and the location of the position.

This role is eligible for a discretionary annual bonus (based on company, business unit and individual performance).

Our benefit offerings include medical, dental and vision coverage, employer paid short & long-term disability and life insurance, 401(k), profit sharing, paid time off, Maven family & fertility benefit, parental leave (including adoption, surrogacy, and foster placement), as well as other voluntary benefits.

Base Salary Range

$175,000 - $240,000

To learn more, visit www.antares.com. Antares is an Equal Opportunity Employer. Employment decisions are made without regard to race, color, religion, national or ethnic origin, sex, sexual orientation, gender identity or expression, age, disability, protected veteran status or other characteristics protected by law.