Senior Engineer, AI & Agentic Development

Stavtar • Southlake, TX

19h

About The Position

We are hiring a Senior Engineer to build AI-powered and agentic features across StavPay. You will work closely with the Staff Engineer who leads AI technical direction, and take ownership of designing, building, and shipping features that bring intelligent automation to financial operations workflows. This is a hands-on building role. You will write production code daily—prompt chains, agent workflows, RAG pipelines, API integrations, and frontend components—while also contributing to architectural decisions, evaluation frameworks, and engineering standards for AI features. You will work across the full stack: Python and C#/.NET on the backend, Angular on the frontend, and LLM orchestration in between. You should be comfortable moving between these layers and making pragmatic decisions about where and how AI fits into existing product workflows. You will work across the following stack. You don’t need deep expertise in every layer, but you should be comfortable working in a polyglot codebase and building features that span multiple technologies.

Requirements

• 5+ years of professional software engineering experience building production systems.
• 2+ years of hands-on experience building AI/ML-powered product features that shipped to real users.
• Solid experience with LLM integration: prompt engineering, function/tool calling, RAG architectures, and agent workflows.
• Strong software engineering fundamentals: API design, data modeling, testing, and production operations.
• Experience with at least one modern AI/agent framework (LangChain, LlamaIndex, Anthropic tool use, OpenAI Assistants, CrewAI, or similar).
• Proficiency in Python. Working knowledge of TypeScript and SQL.
• Clear written and verbal communication. Ability to document technical decisions and explain trade-offs.
• Comfort with ambiguity—able to take loosely defined requirements and ship iteratively toward a working solution.

Nice To Haves

• Experience building MCP servers or integrations, or familiarity with the Model Context Protocol ecosystem.
• Domain experience in FinTech, payments, accounting automation, fund administration, or financial operations.
• Experience with C# / .NET in addition to Python.
• Experience with AI-assisted development tools (Claude Code, Cursor, Copilot) and opinions on how they change engineering workflows.
• Familiarity with trust and safety patterns for AI: output validation, content filtering, human-in-the-loop controls, and audit logging.
• Experience with Azure cloud services, SQL Server, or Azure DevOps.
• Familiarity with financial data formats: NACHA, ISO 20022, SWIFT, or accounting system APIs (QuickBooks, NetSuite, Sage).

Responsibilities

• Build AI-powered product features end-to-end: from prompt engineering and model integration through API development, data handling, and frontend delivery.
• Develop and iterate on prompt chains, RAG pipelines, and multi-step agent workflows for financial operations use cases such as invoice processing, approval routing, anomaly detection, and natural-language queries.
• Implement and maintain the integration layer between LLM providers (Anthropic, OpenAI, etc.) and StavPay’s backend—handling model calls, error recovery, cost tracking, and latency optimization.
• Build evaluation and testing infrastructure for AI outputs: automated quality scoring, regression detection, and production monitoring.
• Build and maintain MCP (Model Context Protocol) servers that expose StavPay’s capabilities as tools for AI agents and external platforms.
• Implement agent orchestration patterns: tool selection, context management, memory, and guardrails for autonomous financial workflows.
• Build human-in-the-loop controls, approval gates, and escalation paths that make agentic workflows safe for production financial operations.
• Develop reusable components and libraries that accelerate AI feature development across the team.
• Write clean, well-tested, production-grade code. Maintain high standards for reliability, observability, and security in AI-driven features.
• Contribute to technical design discussions, RFCs, and architectural decisions for AI systems.
• Participate in code reviews with a focus on AI-specific concerns: prompt quality, model output handling, safety, and cost efficiency.
• Collaborate with product, design, and the implementation team to translate client workflows and pain points into well-scoped AI features.
• Work with security and compliance to ensure AI features meet regulatory requirements for financial data handling and auditability.

Benefits

• Build the core AI features that define StavPay’s next chapter
• Ship production systems that fundamentally change how financial operations teams work
• Grow into a technical leader in agentic development

What This Job Offers

• Job Type: Full-time
• Career Level: Senior
• Education Level: No Education Listed