Job Description
Staff Applied AI/ML Software Engineer
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Also open to senior-level software engineers (5+ years)
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Location: Bellevue, WA | Hybrid: In the office 3 days per week | Employees: 150 | Industry: AdTech
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Responsibilities
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- Own the full software development lifecycle of LLM-powered systems, from requirements through production deployment and operational health
- Design and implement retrieval-augmented generation (RAG) systems, tool-use patterns, and multi-step reasoning workflows
- Integrate LLM-based services into the company’s products, internal tools, and data ecosystem
- Drive architectural decisions balancing capability, cost, latency, and maintainability
- Establish evaluation frameworks and metrics to measure application quality and business impact
- Work with stakeholders to define product capabilities and build new features and integrations
- Champion excellence in coding, testing, and quality across the team and culture
- Mentor engineers on LLM application development patterns and best practices
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Requirements
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- 9+ years of experience in software engineering
- Experience designing and owning systems end-to-end, including 3-tier architectures, data flows, APIs, deployments, operations
- Strong Python programming skills
- Hands-on experience building LLM-powered features in production
- Experience with RAG architectures - vector databases, embedding models, retrieval strategies
- Practical prompt engineering skills, with demonstrated ability to iterate and evaluate quality
- Familiarity with core ML concepts (classification, evaluation metrics, embeddings) and the judgment to know when traditional ML outperforms LLM-based solutions
- Experience with agent frameworks and tool-use patterns (MCP, function calling)
- Familiarity with cloud environments (AWS preferred: EC2, S3, Bedrock)
- Self-starter who is organized, works independently, and is comfortable with ambiguity
- Experience collaborating with engineers and non-technical stakeholders
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Benefits
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- 100% employer-paid health, dental, and vision (including dependents and spouse/domestic partner), long-term disability and life insurance, 401(k) with company match, open PTO plus a birthday day off, 13 holidays, 5 recharge days, professional development reimbursement, cell phone, wellness, and internet reimbursement, fully paid parental leave (up to 22 weeks primary caregiver, 12 weeks secondary), and dog-friendly offices with pet adoption reimbursement
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Compensation
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- $170K - $260K
- Annual bonus and RSU participation
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