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Senior Software Engineer - (Go) Real-Time Engine
SynthflowWebsite
Full-time
Senior
Remote
Worldwide (remote)
Posted 5 months ago
Job Description
Synthflow AI is an enterprise AI agent platform that unifies customer operations across voice, chat, and messaging. Our agents handle routine interactions at scale so teams can focus on high-value work.
- Over 20M hours of operations automated
- 60% more calls answered vs. non-AI operators
- 150M interactions handled, 99.99% uptime
Backed by Accel, Atlantic Labs, and Singular. Trusted by 1,000+ customers. Recognized as one of the most promising companies in Germany.
ABOUT SYNTHFLOW
At Synthflow http://synthflow.ai/ 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
We’re looking for a Senior Go Software Engineer to build real-time voice AI systems that set the standard.
YOUR RESPONSIBILITIES WILL INCLUDE:
- Design and enhance backend infrastructure focusing on scalability, performance, and reliability. Implement features and maintain the systems that power our next-generation products.
- Expertly manage concurrency and parallelism in Go using goroutines, channels, and synchronization primitives like mutexes and wait groups.
- Develop robust networking and streaming capabilities, including experience with network programming, sockets, and protocols like WebSockets and WebRTC.
- Lead performance optimization initiatives by profiling Go code, reducing latency, and efficiently managing memory and garbage collection.
- Build fault-tolerant systems with strong recovery mechanisms and failover strategies to maintain service continuity.
- Implement comprehensive logging and tracing using tools such as zap, klog, OpenTelemetry, and Jaeger to enhance monitoring and troubleshooting.
- Apply Test-Driven Development (TDD) and engage in Pair Programming to ensure high code quality and promote team collaboration.
- Participate actively in code reviews, offering constructive feedback to uphold code quality and adhere to best practices.
- Stay informed on the latest in software development and contribute to the team's continuous learning and improvement.
YOU HAVE:
- At least 5 years of professional experience with Go, along with a track record of developing scalable and extensible systems.
- Additional proficiency in Python and familiarity with infrastructure containerization, DevOps (preferably GCP or AWS).
- Extensive experience in creating and maintaining robust APIs and implementing advanced CI/CD pipelines.
- A strong foundation in software engineering principles and a commitment to leading-edge practices including TDD, pair programming, and continuous integration.
BEYOND THE BASICS:
- Exposure to real-time infrastructure or latency critical systems
- Nice to have: A background in AI, particularly around Large Language Models, Speech to Text, and Voice Synthesis applications.
- Knowledge of distributed computing and cloud infrastructure at scale.
WHAT WE OFFER:
- Autonomy at speed: High-ownership roles in a fast-moving startup.
- Remote-first flexibility: Contribute from anywhere, on your schedule.
- Cutting-edge technology: Work on what interests you most.
- Career growth: Scale your impact as the company grows.
- Rewarding package: Competitive pay, equity options, and comprehensive benefits that reflect your skills and experience.
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.
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