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Stably AI

Senior Full-stack Engineer

Sorry, this job was removed at 02:10 a.m. (PST) on Thursday, Feb 26, 2026
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About Us

Stably AI is redefining QA testing through cutting-edge AI, enabling teams to build exceptional software faster than ever. Founded by industry experts who built testing infrastructure at Google and developed ML systems at Uber, our AI platform analyzes any web application, automatically generates comprehensive test scripts, and adapts to changes in real time—boosting testing efficiency by up to 10x.


About the role

We’re looking for an exceptional Back-End Engineer with at least 3 years of experience to join our fast-growing team. You will design, develop, and maintain high-quality, scalable software applications—particularly the core AI agent and the infrastructure that powers our AI agents.


You Will Have The Exciting Opportunity To

  • Build and Optimize AI Infrastructure: Architect, develop, and maintain the scalable systems where our AI agents run, ensuring smooth and efficient performance.

  • Drive Product Strategy: Work closely with leadership on feature prioritization and strategic roadmap decisions.

  • Prototype and Iterate Rapidly: Translate customer feedback into product enhancements, delivering quick prototypes under tight deadlines.

Required Qualifications

  • 3+ Years of Back-End Experience: Strong background in designing, building, and maintaining robust and scalable applications.

  • DevOps Expertise: Proficient with AWS, Docker, and Kubernetes, with a track record of managing distributed systems.

  • Web Crawling or Mobile: Familiarity with web crawling or mobile development is a huge plus.

  • Rapid Prototyping: Ability to quickly build and iterate on solutions under tight deadlines.

Preferred Qualifications

  • AI/ML Experience: Exposure to LLMs or other AI models.

  • TypeScript Familiarity: Experienced with TypeScript or another strongly typed language

Why Join Stably?

  • Impact: Contribute to technology that's reshaping software development and propelling human progress.

  • Team: Join a founding team with both deep technical expertise and experience mentoring engineers. We'll work with our hires to craft it to their interests, skill set, and long-term career goals.

  • Growth: Join at an inflection point - shape our technical foundation and culture while taking ownership of important projects.

  • Technology: Work with cutting-edge AI tech, including advanced language models, voice AI, and knowledge graphs. Learn and build with the latest web, cloud, and generative AI stack.

If you’re ready to be a part of a hyper-focused, fast-paced, and talented team and work on the latest AI technology, we'd love to hear from you!

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Key Facts About Seattle Tech

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