Senior Software Engineer, Backend

Key Responsibilities

• Build platform and backend systems at Siro, across recording, integrations, AI agents, and more!
• Own the end-to-end development of key features, from architectural decisions through implementation, deployment, and support
• Design and build scalable backend services that handle real-time processing of sales conversations
• Drive technical excellence through thoughtful code reviews, documentation, and engineering best practices
• Partner closely with product and design teams to transform customer needs into elegant technical solutions
• Own the health of our systems and products, and make data-driven decisions
• Help evolve our development practices and tooling to enable sustainable scaling while maintaining velocity

Requirements

• We expect 6+ years of professional software engineering experience.
• You are excited to work in our NYC office 3+ days a week with the rest of the team.
• You have strong proficiency in modern programming languages, databases, API frameworks, and cloud platforms (like GCP).
• You are a strong problem solver, with the ability to think critically and approach challenges with a first-principles mindset.
• You have strong communication skills, able to articulate complex technical concepts to both technical and non-technical stakeholders.

Tech Stack

• Frontend: Next.js, React Native, TypeScript
• Mobile: Swift, Kotlin
• Backend: Node.js, Typescript, serverless functions
• Cloud: Google Cloud Platform (GCP)
• Other tools: Git, Datadog, Figma

Why Join Siro?

• Growth: Join a rapidly scaling Series B startup with proven product-market fit
• Technology: Work with cutting-edge AI technologies and a modern tech stack
• Team: Collaborate with an experienced CEO (previously built a successful sales tool used by 100,000+ reps) and top-tier team
• Ownership: Take end-to-end ownership of features that directly impact our users
• Learning: Work across the full stack and grow your technical breadth
• Impact: Help democratize sales success and create opportunities for millions of sales professionals

What Sets You Apart

• You're a collaborative team player with a "we before me" mindset, always ready to support and elevate your colleagues.
• You have high standards for excellence and aren't afraid to voice your opinion to push for quality.
• You think strategically beyond code, considering business and design implications in your work.
• You actively leverage AI coding tools to assist you during development.
• You thrive in an agile environment with low management overhead.
• You're creative and can think outside the box to solve complex problems in innovative ways.
• You continuously look to grow your skills and your impact.