Software Engineer, Backend

Join to apply for the Software Engineer, Backend role at Siro

Join to apply for the Software Engineer, Backend role at Siro

We're transforming the trillion-dollar world of in-person sales by capturing and analyzing a never-before-digitized dataset: face-to-face conversations. While the tech world obsesses over digital interactions, most of our economy still runs on millions of in-person sales and service conversations happening daily across the U.S. Unlike Zoom calls, these conversations weren't historically recorded – leaving petabytes of rich data untapped. Until now.

Companies in hundreds of industries rely on frontline sales forces working in-person, yet they've operated with zero visibility into these critical customer interactions. Meanwhile, sales productivity follows a stark Pareto distribution – the vast majority of commissions accumulate to a small percentage of top performers, leaving millions of salespeople struggling to achieve financial freedom.

With Siro, we're democratizing sales excellence. Our customers see their reps closing up to 40% more deals, all while gaining unprecedented insights from field conversations.

We've built an intelligence platform that captures, processes, and derives actionable insights from in-person sales and service conversations. Our customers span diverse industries – home improvement, home services (HVAC, plumbing), retail, B2B distribution, insurance, hospitality, and more.

With over $75M in backing from world-class investors, we're on a mission to make field sales the most accessible path to financial freedom.

Our product is already making waves - 4.8 stars on the App Store (700+ ratings), 5.0 stars on G2 (25 reviews), and partnerships with industry leaders like Service Titan (NASDAQ: TTAN).

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

• We expect 3+ 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.

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

• 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

• 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,…