Sr. AI Software Engineer

About the role

At Sembix, we're building a championship team of engineers and innovators who push each other to improve every week. If you've been using LLMs daily since January 2023 — not just to experiment, but to build and automate real products — this is your chance to help shape and build AI-powered systems at scale.

Responsibilities

• Design and build GenAI-powered features and sophisticated agent workflows
• Lead technical direction on modernization efforts, embedding AI capabilities into core systems
• Collaborate closely with product, engineering, and customer teams to plan, develop, and ship new features iteratively
• Mentor and support junior and mid-level engineers on AI patterns, prompt design, and best practices
• Design and optimize prompt chains, retrieval-augmented generation (RAG), and hybrid AI architectures
• Support technical demos and contribute to shaping feature roadmaps

Requirements

• Daily use of LLMs and GenAI tools since January 2023 — using models for product development, automation, and advanced problem-solving
• 5+ years in software engineering or intelligent system development, with at least 2 years in AI/ML-focused roles
• Strong proficiency in Python and TypeScript; expertise with API-first, event-driven, and serverless architectures
• Experience building and delivering AI-embedded or GenAI-powered features
• Experience with CI/CD pipelines, containerization, and infrastructure-as-code
• AWS Certified (Associate or Professional level)

Preferred Skills

• Tools: AWS Bedrock, LangChain, vector databases, Claude, OpenAI, Pinecone
• AI practices: prompt engineering, few-shot learning, RAG, agent orchestration

Benefits

• 401(k) Match: 100% match up to 4% of base salary, fully vested immediately
• Paid Time Off: 20 days per year
• Medical: 100% employee coverage, 50% for family
• Holidays: 10 paid holidays annually

Pay

Base Salary: $125,000 – $150,000 per year, based on experience

Schedule

Full-time