Synthflow AI is a no-code platform for deploying voice AI agents that automate phone calls across contact center operations and business process outsourcing (BPO) at scale. We help mid-market and enterprise companies manage routine calls to save teams time and resources.
Our agents have already delivered measurable impact:
Over 5 million hours of contact center operations saved
35% more calls answered compared to non-AI operators
45 million calls handled with a 99.9% uptime
Backed by Accel, Atlantic Labs, and Singular and trusted by over 1,000 customers, our growth leads an industry shift toward sophisticated and accessible conversational AI.
About Synthflow
At Synthflow we’re building the easiest way for businesses to create AI-powered phone agents. No coding, no fuss—just smarter automation. We’re passionate about delivering the future of voice technology with lightning-fast, scalable solutions. It’s an exciting time at Synthflow: we’re early, fast-growing, and laser-focused on impact. Join us to do the best work of your career while helping businesses thrive.
About the Role
As a Senior Software Engineer in Test, you will lead the development and execution of our automated test infrastructure for REST APIs, UIs, and voice agents. You’ll work closely with developers to triage issues, expand test coverage, and ensure the reliability of our AI-driven voice products. This is a high-impact role with the opportunity to shape a new automation function from the ground up.
What You'll Do:
Develop and run automated tests (REST, UI, Voice) in Python and JavaScript.
Analyze results, proactively triage issues, and collaborate with devs.
Grow the test suite for new features and client use cases.
Who You Are:
2–3 years in automated testing; 1–2 years in manual.
Developer background is a big plus.
Familiar with Playwright/Cypress + Jest/Postman (JS) or Selenium/FastAPI (Python).
Knowledge of Github Actions and CI/CD, Sonarqube
No audio expertise needed (we have in-house tools).
What We Offer:
A chance to be at the forefront of technological innovation in a fast-growing startup.
A dynamic and supportive work environment where teamwork and creativity are encouraged.
Competitive salary, comprehensive health benefits, and equity options.
Flexible work arrangements, including remote work opportunities.
Founded in Berlin in 2023 by serial entrepreneurs Albert Astabatsyan, Hakob Astabatsyan, and Sassun Mirzakhan-Saky, Synthflow AI democratizes access to advanced voice AI with a no-code platform that lets enterprises easily create, deploy and scale natural-sounding, cost-effective voice agents tailored to their business needs.