--- title: 'Senior Software Engineer, Full Stack at Siro' canonical: 'https://feeny.ai/job/senior-software-engineer-full-stack-siro-new-york-ajsv9865vzyx' type: 'job' last_seen: '2026-09-11' --- # Senior Software Engineer, Full Stack at Siro - **Company:** Siro - **Location:** New York, NY - **Compensation:** $240k - **Employment:** full-time - **Work type:** hybrid - **Posted:** 2025-09-22 - **Last confirmed live:** 2026-09-11 - **Apply:** https://jobs.ashbyhq.com/siro/d19f92f2-dc59-4ef9-b5fe-2155579c2ed6/application **Skills:** TypeScript, Node.js, REST API design, Web performance optimization, Mobile performance optimization, React Native, Svelte, Swift, Kotlin, Google Cloud Platform, Git, Datadog, Figma, AI coding tools > Build and enhance full-stack features for an AI-powered sales platform, focusing on frontend development and end-to-end feature ownership. The role involves crafting performant user interfaces, driving technical excellence, and partnering with product teams to deliver intuitive experiences for sales professionals. ## Job description Field sales powers the economy — but most teams are struggling. Reps are buried in admin work, managers are stretched thin, and leaders can’t see what’s really happening in the field. Siro is redefining how field sales teams learn, perform, and win. We started as an AI-powered coaching platform that helped reps improve their outcomes in the field. Today, we’re something much bigger — an intelligent companion that automates sales reps’ tedious admin work, gives managers real-time visibility, and helps executives see around corners. Our platform integrates with systems like Salesforce, analyzing thousands of in-person sales conversations to surface insights, automate workflows, and drive better outcomes across the org. Think Iron Man’s Jarvis for sales — proactive, personalized, and built directly into the tools teams already use. Siro has raised $75M and is backed by world-class investors like Index, Fika, CRV, and SignalFire. We are trusted by leading home-improvement, retail, hospitality, and automotive brands, and powered by a lean team from Meta, McKinsey, Doordash, and Uber. We’re building the future of human-AI collaboration in sales — and we’re just getting started. ## 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 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 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: 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. 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. ## About Siro ## Company Overview - **One-liner**: Siro builds an AI-powered platform that records, transcribes, and analyzes in-person sales conversations to provide coaching, automate admin work, and surface strategic insights for field sales teams. - **Entity Type**: Private (Series B) - **Headquarters**: New York, New York, United States - **Founded**: 2020 - **Founders**: Jake Cronin ## Core Business - **Industry**: Sales Intelligence / AI-powered Conversation Intelligence - **Target Customers**: B2B – field sales teams in home improvement, retail, distribution, hospitality, and automotive sectors - **Mission**: “To make in-person sales the most empowered, data-driven, and coachable aspect of any business” and “rewire the trillion-dollar world of in-person sales by turning every customer conversation into winning insights.” ## Products & Services - **Siro Platform**: An intelligent sales companion (often described as “Iron Man’s Jarvis for sales”) that captures and analyzes in-person conversations via mobile/audio, integrates deeply with Salesforce, automates CRM workflows, and provides real-time coaching, performance dashboards, and trend analysis. Type: AI SaaS with mobile and web applications. ## Market Standing - **Total Funding**: $75M (according to the company’s about page) or $68M (per LinkedIn funding history – conflicting reports) - **Key Metric**: $50M Series B led by SignalFire (June 2025) - **Notable Investors**: Index Ventures, CRV, SignalFire, Fika Ventures, 01A, Stepstone - **Growth Signals**: - Headcount grew 107.5% YoY (86 employees as of mid-2026) - Trusted by ServiceTitan’s Field Pro and leading home-improvement, retail, and automotive brands - Expanding into new verticals (automotive, hospitality) with dedicated GMs (e.g., Grant Shisler – GM Automotive) ## Competitive Advantages - **In-Person Focus**: Unlike most conversation intelligence tools that only capture virtual meetings, Siro solves for the large, untapped market of in-person field sales conversations. - **AI Infrastructure for Unstructured Data**: Builds proprietary pipelines to decode industry-specific conversation data that is not recorded anywhere else. - **Deep Integrations**: Seamless connection with Salesforce and other enterprise tools to automate workflows and provide actionable insights in real time. - **Lean, Experienced Team**: Core team includes alumni from Meta, McKinsey, Doordash, and Uber, enabling fast execution. ## Strategic Focus - **Product Vision**: Evolve from a coaching platform into an “intelligent companion” that automates reps’ admin work, gives managers real-time visibility, and helps executives anticipate trends. - **Vertical Expansion**: Targeting new industries beyond home improvement, such as automotive and hospitality, with dedicated product and go-to-market teams. - **Engineering Investment**: Hiring heavily in backend, full-stack, mobile, and AI/ML roles to scale the platform. ## Why Work Here - **Hybrid Policy**: Employees work from the NYC Flatiron office three days a week (Tuesday–Thursday), with WFH on Mondays and Fridays. - **Benefits**: 100% medical coverage, 75% dental and vision, 401k, unlimited PTO (genuinely encouraged), paid parental leave, gym/wellness stipend, paid lunch on in-office days, and memberships covered. - **Culture**: Described as fast-paced, impact-driven, collaborative (“We before Me”), with a focus on ownership and raising the bar. Egos are discouraged; the best ideas come from anywhere. - **Compensation**: Real equity (meaningful stake) and competitive pay. - **Rating**: 4.6/5 on Built In (27 reviews) – Culture 4.8, Compensation 4.5, Career 4.5. - **Tech Stack**: TypeScript, Node.js, React, React Native, Swift, Redux, BigQuery, Google Cloud, Natural Language Processing. ## Sources 1. [siro.ai](https://www.siro.ai/careers) 2. [siro.ai](https://www.siro.ai/about) 3. [linkedin.com](https://www.linkedin.com/company/siro-ai) 4. [builtin.com](https://builtin.com/company/siro) 5. [pitchbook.com](https://pitchbook.com/profiles/company/467099-38) ## Other roles at Siro - [VP of Marketing](https://feeny.ai/job/vp-of-marketing-siro-new-york-3q2t4z6xfx3a) — New York, NY - [Senior Manager/Director Product Marketing](https://feeny.ai/job/senior-manager-director-product-marketing-siro-new-york-83jmv15a015x) — New York, NY - [Senior Product Manager](https://feeny.ai/job/senior-product-manager-siro-new-york-5mc6zp6p3mdp) — New York, NY - [Commercial Counsel (in-house)](https://feeny.ai/job/commercial-counsel-in-house-siro-new-york-fkxg9hkcsqm6) — New York, NY - [Senior Mobile Engineer](https://feeny.ai/job/senior-mobile-engineer-siro-new-york-v81yeaytwm3w) — New York, NY - [Enterprise Account Executive](https://feeny.ai/job/enterprise-account-executive-siro-new-york-m4mcy3tdv1ym) — New York, NY - [Staff Software Engineer, Full Stack](https://feeny.ai/job/staff-software-engineer-full-stack-siro-new-york-19ctnbj7bbw9) — New York, NY - [Staff Software Engineer, Backend](https://feeny.ai/job/staff-software-engineer-backend-siro-new-york-4aey9qwc8dj8) — New York, NY - [Senior Software Engineer, Backend](https://feeny.ai/job/senior-software-engineer-backend-siro-new-york-1vga3s1ndrqe) — New York, NY - [Senior Software Engineer, Full Stack](https://feeny.ai/job/senior-software-engineer-full-stack-plaid-seattle-ptpqqqy8333m) — Seattle, WA