Senior Software Engineer, Backend

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 salesforces 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 ServiceTitan (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

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.

Our Tech Stack

In case you’re curious, we use the following technologies (and more), but proficiency in any specific technology is not required.

Frontend : React Native, Svelte, 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.

At Siro, we are committed to creating a diverse and inclusive environment where all people feel that they are equally respected and valued, whether they are applying for an open position or working at the company. We provide equal employment opportunities to all applicants without regard to race, religion, color, national origin, gender, sexual orientation, age, marital status, veteran status, or disability status.