Senior Python Software Engineer

<p>Synthflow AI is a <strong>no-code platform for deploying voice AI agents </strong>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. </p><p>Our agents have already delivered measurable impact:</p><ul><li><p>Over <strong>5 million hours</strong> of contact center operations saved</p></li><li><p><strong>35% more calls </strong>answered compared to non-AI operators</p></li><li><p>45 million calls handled with a <strong>99.9% uptime</strong></p></li></ul><p>Backed by <strong>Accel, Atlantic Labs, and Singular</strong> and trusted by over 1,000 customers, our growth leads an industry shift toward sophisticated and accessible conversational AI.</p><h1><strong>About the role</strong></h1><p>We’re looking for a Senior Python Engineer to craft reliable, production-ready software for AI tools.</p><p></p><h2><strong>Your responsibilities will include:</strong></h2><ul><li><p><strong>Develop and maintain our backend infrastructure</strong>, focusing on scalability, performance, and reliability.</p></li><li><p><strong>Implement new features</strong> in collaboration with our engineering team.</p></li><li><p><strong>Participate in the entire software development lifecycle</strong>, including requirements analysis, design, implementation, testing, and deployment.</p></li><li><p><strong>Apply Test-Driven Development (TDD) practices</strong> to ensure robust and reliable code.</p></li><li><p><strong>Engage in Pair Programming</strong> to enhance code quality and foster team collaboration.</p></li><li><p><strong>Implement and maintain Continuous Integration/Continuous Deployment (CI/CD) pipelines</strong> to streamline development and deployment processes.</p></li><li><p><strong>Conduct code reviews</strong>, providing constructive feedback to maintain high standards of code quality and best practices.</p></li><li><p><strong>Stay updated with the latest trends in software development</strong>, sharing knowledge and contributing to continuous improvement.</p></li></ul><p></p><h1><strong>You have:</strong></h1><ul><li><p>A <strong>minimum of 5 years of experience</strong> as a Python developer.</p></li><li><p>Strong experience in <strong>building scalable and extensible data infrastructure</strong>.</p></li><li><p>Proficiency in <strong>infrastructure containerization, DevOps &amp; MLOps</strong> (preferably GCP or AWS).</p></li><li><p>Experience in <strong>building and maintaining enterprise-grade APIs</strong> (e.g., with FastAPI).</p></li><li><p>Demonstrated experience with <strong>TDD, pair programming, and CI/CD practices</strong>.</p></li></ul><p></p><h1><strong>Beyond the basics:</strong></h1><ul><li><p>Familiarity with <strong>voice technologies</strong> like WebRTC and Twilio.</p></li><li><p>Knowledge of <strong>AI</strong>, particularly Large Language Models (LLMs), Speech To Text and Voice Synthesis models.</p></li><li><p>Experience in <strong>AI-related fields</strong> like low-latency audio stream processing or building applications with LLMs.</p></li><li><p>Familiarity with <strong>AI frameworks</strong> such as LangChain, LlamaIndex, etc.</p></li><li><p>Experience with <strong>large-scale distributed computing and cloud infrastructure</strong>.</p></li></ul><h3></h3><h1><strong>What we offer:</strong></h1><ul><li><p><strong>Autonomy at speed: </strong>High-ownership roles in a fast-moving startup.</p></li><li><p><strong>Cutting-edge technology:</strong> Work on what interests you most.</p></li><li><p><strong>Career growth: </strong>Scale your impact as the company grows.</p></li><li><p><strong>Rewarding package: </strong>Competitive pay, equity options, and comprehensive benefits that reflect your skills and experience. </p></li></ul><p>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 <strong>enterprises easily create, deploy and scale</strong> natural-sounding, cost-effective voice agents tailored to their business needs.</p>