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# Staff Software Engineer, AI Insights

- **Company:** AXION
- **Location:** New York, United States
- **Experience:** Expert
- **Contract:** Permanent contract
- **Skills:** Application Programming Interfaces (APIs), Amazon Web Services, Microsoft Azure, Data Warehousing, Distributed Systems, Performance Tuning, Data Processing, Cloud Platform System, Large Language Models, Backend, Serverless Computing
- **Published:** October 7, 2026
- **Apply:** https://startup.jobs/senior-staff-software-engineer-ai-insights-axion-9977564

## About the Role

* 5+ years building and operating production backend or data-intensive systems
 * Production experience with LLM systems, including multi-step, tool-using, or agentic workflows
 * Experience measuring and improving model quality, through evals, prompting, fine-tuning, or a mix
 * Experience designing distributed systems, asynchronous workflows, and reliable data-processing services
 * Working knowledge of data warehousing, ideally applied to versioned datasets, lineage, or feedback capture
 * Experience running containerized applications on a major cloud platform ([AWS/GCP/Azure])

Bonus Points

 * Fine-tuning or distillation experience (SFT, LoRA, or provider tuning APIs)
 * Experience with LLM observability and cost/latency optimization

Who You Are:

You're a builder and operator who thrives in fast-moving, high-accountability environments. You take pride in getting things done - thoughtfully, efficiently, and without drama. You're energized by ambiguity, skilled at bringing clarity, and comfortable flexing between strategy and execution.

You value feedback - giving it, receiving it, and acting on it - and you see collaboration as a competitive advantage, not a burden. You're low-ego but high-agency: you care about winning as a team more than being right individually. You move quickly, communicate directly, and make decisions grounded in impact and data.

You don't need constant direction - you create momentum. You take ownership for outcomes, and you expect the same from those around you.

## Description

We're hiring for a Senior or Staff Software Engineer to help lead our agile, fast-moving backend teams. In this role, you'll design and build scalable agentic systems, backend services and data-processing workflows that transform complex, unstructured customer data into reliable, structured outputs. . You'll help shape the architecture of our APIs, databases, cloud infrastructure, and LLM-powered and agentic systems while improving their reliability, observability, and performance. Working closely with engineering, product, and customer-facing teams, you'll translate ambiguous business needs into clear technical direction and lead foundational decisions that scale with the company. This is a high-impact opportunity to shape the company's technical strategy and make foundational decisions that will scale with us, * Architect and operate multi-step, tool-using agentic pipelines that convert unstructured data into reliable structured output

 * Build evaluation frameworks, golden datasets, and feedback loops that measure quality and catch regressions
 * Improve model performance through prompt and pipeline optimization, model selection, and fine-tuning where it pays off
 * Own the reliability of cloud-native services: deployment, observability, scalability, and on-call support
 * Mentor engineers and lead cross-team technical initiatives from design through production