Senior AI Engineer — Chat & Agent Systems Architect

Building Ventures, Inc.; Indianapolis (IN); On-site; USD 120,000 - 160,000; Full time

Job summary

Building Ventures, Inc. in Indianapolis seeks a strong AI engineer with 4–5 years of software experience to lead chat-team initiatives and shape the technical direction.

You will own the technical design of day-to-day projects, write production Python, and help drive higher quality through thoughtful code reviews. You will mentor junior developers, design clear abstractions, and improve observability, latency, and cost of agentic chat systems, while collaborating across teams to deliver reliable

Qualifications

• 4–5 years of professional software engineering experience.
• Proficient Python with typed, maintainable production code.
• Experience designing and operating production systems.
• Experience mentoring juniors.
• Experience with agentic coding workflows.

Responsibilities

• Own the technical design and delivery of chat-team projects.
• Shape engineering priorities, standards, and day-to-day decisions.
• Translate product requirements into simple, maintainable system designs.
• Write production Python and oversee implementation.
• Review PRs for correctness, maintainability, test coverage.
• Mentor junior engineers in agentic coding workflows.
• Diagnose production issues across code, prompts, models, data, and infra.
• Improve reliability, observability, latency, and cost of chat systems.
• Lead initiatives to make the team more AI-native.
• Lead code reviews and ensure sound architectural decisions.

Skills

Python

API design

Testing with pytest

Code reviews

Mentoring

Agentic coding

System design

Observability

Production systems

Communication

Tools

LangGraph

LangSmith

Langfuse

Job description

Building Ventures, Inc. in Indianapolis seeks a strong AI engineer with 4–5 years of software experience to lead chat-team initiatives and shape the technical direction.

You will own the technical design of day-to-day projects, write production Python, and help drive higher quality through thoughtful code reviews. You will mentor junior developers, design clear abstractions, and improve observability, latency, and cost of agentic chat systems, while collaborating across teams to deliver reliable