Senior Software Engineer/Senior AI Developer (Node.js, Typescript)

Sorry, this job was removed at 04:16 p.m. (CST) on Tuesday, Apr 14, 2026
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Warsaw, Warszawa, Mazowieckie, POL
In-Office
29K-33K Annually
Cloud • Software
The Role

About Us:

Sauce Labs is the world’s largest full-lifecycle, test automation platform, and the company behind Selenium. Trusted by 80% of the world’s top ten largest financial institutions and over 300,000 enterprise users, Sauce Labs provides the only AI platform capable of turning business intent into autonomous testing and quality assurance. With a proprietary dataset of 8.7 billion test runs, Sauce Labs empowers the Fortune 2000 to bridge the gap between AI-driven code generation and enterprise-grade software quality. Learn more at saucelabs.com.

The Role:

The Integrations Team is expanding and seeking a Senior AI Developer to focus on managing and building high-level integrations across our platform. This role involves working at the intersection of core product functionality and advanced AI services, specifically focusing on integrating cutting-edge AI features into our existing product ecosystem.Responsibilities:

  • Maintain applications written in high-level programming languages such as NodeJS in TypeScript
  • Strive for constant improvement and contribute to the power of our agile development culture
  • Collaborate with other teams on building our platform
  • Participate in on-call rotations to help teams troubleshoot urgent customer-facing problems and other engineering issues

Required Skills:

  • Advanced TypeScript knowledge and proven NodeJS experience
  • Proven experience with CI/CD and Docker
  • Proven experience with relational and non-relational databases
  • Experience with observability and monitoring

Nice to Have:

  • Experience with Rust or Python
  • Data Integration: Snowflake/SQL, Text2SQL tools
  • Experience working in both high volatility (startup) and bigger organization environments
  • AI System Observability: Debugging non-deterministic behavior, agent tracing
  • LLM Orchestration: Tool/API integration, streaming responses
  • LLM Agent Development: LangChain/similar frameworks + tool development (MCP, function calling)
  • Agent Communication Protocols: MCP and/or A2A patterns
  • Prompt Engineering: System prompt design, optimization, output validation
  • Managed LLM Services: GCP Vertex AI, AWS Bedrock, or Azure OpenAI

Please note our privacy terms when applying for a job at Sauce Labs.

Sauce Labs is proud to be an Equal Opportunity employee and values diversity at our company. We do not discriminate on the basis of race, religion, color, national origin, gender identity/expression/status, sexual orientation, age, marital status, veteran status or disability status.

Security responsibilities at Sauce

At Sauce, we will commit to supporting the health and safety of employees and properties, partnering with internal stakeholders to learn and act on ever-evolving security protocols and procedures. You’ll be expected to fully comply with all policies and procedures related to security at the department and org wide level and exercise a ‘security first’ approach to how we design, build & run our products and services.

The compensation range provided below represents the base salary only for a Full-time Employment contract (umowa o pracę) and excludes fringe benefits, potential bonuses, or stock-based compensation (equity). Your individual offer will be determined based on factors such as skills, education, professional experience, and internal equity (alignment with similarly situated team members at Sauce Labs).
Benefits and Perks that we offer include but are not limited to: wellness benefit, commuter benefit, WFH stipend, professional development budget, pension Program (PPK). There is no collective agreement in force at the workplace.  To see more about benefits and perks at Sauce Labs, please check out our careers page at saucelabs.com/company/careers.

Poland Compensation Range
28 500 zł32 800 zł PLN

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The Company
HQ: San Francisco, CA
444 Employees
Year Founded: 2008

What We Do

Sauce Labs is the company enterprises trust to deliver digital confidence. More than 3 billion tests have been run on the Sauce Labs Continuous Testing Cloud, the most comprehensive and trusted testing platform in the world. Sauce Labs delivers a 360-degree view of a customer’s application experience, helping businesses improve the quality of their user experience by ensuring that web and mobile applications look, function, and perform exactly as they should on every browser, OS, and device, every single time. Sauce Labs enables organizations to increase revenue and grow their digital business by creating new routes to market, protecting their brand from the risks of a poor user experience, and delivering better products to market, faster.

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