Jobs and Careers
SI

Staff Software Engineer, Full Stack

Siro
New York City, United Statesfull_timeVerifiedPosted 22 Sept 2025
💰 $325,000/yr($284,000/yr – $325,000/yr)

About the role

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 and enhance features (especially frontend) for Siro's direct consumers, creating intuitive user experiences for our AI-powered sales platform

  • Own the end-to-end development of key features, from architectural decisions through implementation, deployment, and support

  • Craft intuitive, performant user interfaces that make complex AI insights accessible to our users

  • 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

  • Help evolve our development practices and tooling to enable sustainable scaling while maintaining velocity

  • Own the health of our systems and products, and make data-driven decisions

Requirements

  • We expect 10+ 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 demonstrate strong proficiency in TypeScript frameworks

  • You have experience with Node.js and REST API design

  • You have demonstrated skill in mobile and/or web performance optimization

  • 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.

Apply for this role

Generate a tailored application kit with a matched cover letter, interview prep, and CV highlights — in under 60 seconds.

Apply Now →Generate Application Kit

Free account required — sign up in 30s

Company

Siro

View company profile →