Sign up to access all features of our service.
  • Job search
  • Favorites
  • Create a CV
    New
  • Salaries
  • Subscriptions

Senior Software Engineer, Backend

$240k

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 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.

Compensation

$240K • Offers Equity

Vacancy posted more than 2 months ago
Similar jobs that could be interesting for youBased on the Senior Software Engineer, Backend in New York, NY vacancy
  • $150k - $175k

     ...A leading real estate technology firm is seeking a skilled software developer with 8+ years of experience to work on product features, bug fixes, and coding solutions. The role requires expertise in PHP, MySQL, MongoDB, and Docker, alongside strong problem-solving skills... 
    Senior
    Remote work

    SitusAMC Holdings Corporation

    New York, NY
    2 days ago
  •  ...A rapidly growing software company is seeking a Senior Software Developer to enhance existing products and create new innovative solutions. Candidates should have over 5 years of experience and be proficient in various programming languages such as Python or Java. The... 
    Senior
    Remote work

    Grant Street Group

    New York, NY
    2 days ago
  • $170k - $230k

     ...Job Description Job Description Senior Backend Engineer (GenAI / LLM Workflows) Compensation: $170,000–$230,000 base + equity Location...  ...Must-Have Qualifications ~7+ years of professional software engineering experience with deep backend expertise ~ Startup... 
    Senior
    Immediate start
    Remote work
    Flexible hours

    NxT Level

    New York, NY
    4 days ago
  • $160k - $200k

     ...of legal outcomes with merit. We're looking for a Back-End Engineer who's excited to build and scale systems that power intelligent...  ...The Responsibilities ~ Design, build, and maintain Syllo's backend systems and APIs to support our data platform. ~ Collaborate... 
    Senior
    Remote work

    Syllo

    New York, NY
    26 days ago
  •  ...A healthcare technology company in the United States is seeking a Software Engineer to develop innovative solutions for digital healthcare. The ideal candidate will have over 7 years of experience in software development, with strong skills in Ruby or Python and familiarity... 
    Senior
    Remote work

    Omada Health

    New York, NY
    2 days ago
  • $125k - $160k

     ...Centric Software, Inc. is looking for a skilled backend engineer to design and implement services using Java and TypeScript. This role involves developing REST APIs and microservices that support enterprise workflows. You should have over 7 years of experience with Java... 
    Senior
    Remote work

    Centric Software

    Brooklyn, NY
    3 days ago
  •  ...ve recently raised our Series B and are entering our next phase of growth. Key Responsibilities Design, build, and maintain backend services and web applications Work on real-time web applications for audio and SMS communications with users (patients)... 
    Senior
    Remote work

    Flagler Health

    New York, NY
    2 days ago
  •  ...Fragomen, a leading global immigration services provider, is seeking an experienced Senior Software Engineer to join their Application Development team in Pittsburgh. This role involves designing, implementing, and delivering web applications that support global hiring... 
    Senior

    600 Mobility Tech Solutions LLC

    New York, NY
    1 day ago
  • $210k - $300k

     ...Senior Software Engineer - Backend At dYdX you'll have an opportunity to build state-of-the-art decentralized technologies that will redefine global financial markets. By joining us at this stage in our growth, you will help make fundamental decisions that will shape... 
    Senior
    Full time

    dYdX

    New York, NY
    3 days ago
  • $210k - $240k

     ...institutions. Our agents have reached 3M+ patient encounters and are on track to 10x this year. About this role As a Senior Software Engineer (Backend) at Amigo, you'll build the core backend infrastructure that powers our agent platform at scale. You'll develop high-... 
    Senior
    Full time
    Flexible hours

    Amigo

    New York, NY
    2 days ago
  •  ...A technology company in New York is seeking an experienced Software Engineer to own the design and development of product features, and collaborate...  ...engineering experience, ideally with a strong background in backend development and familiarity with TypeScript and React. The... 
    Senior
    Remote work

    algojobs

    New York, NY
    3 days ago
  • $183.1k - $274k

     ...The Trade Desk, Inc. in New York is seeking a Senior Software Engineer to design, build, and operate scalable systems for their advertising platform. The ideal candidate will have over 6 years of experience in distributed systems and technologies like C# and Java. Key... 
    Senior

    The Trade Desk

    New York, NY
    4 days ago
  •  ...ways to accelerate crypto adoption. You'll collaborate with backend Rust engineers, blockchain specialists, and UI developers to build...  ...projects Partner with crypto-native engineers Skills 7+ years of software engineering experience Proficiency in writing network services... 
    Senior
    Remote work

    Blockchain Works

    New York, NY
    4 days ago
  • $250k - $350k

     ...the AI layer for professional services and software implementation. Think of us as the brain behind the best solution engineers, forward-deployed engineers, and onboarding...  ...the decade. Role Overview As a Backend Software Engineer at Auctor, you will own and... 
    Senior

    Auctor AI

    New York, NY
    4 days ago
  •  ...those around them. Join us if you want to set the tone for a fair and equitable internet. The Role. We are looking for a Senior Software Engineer (Backend) who is experienced and brings deep expertise in backend development. You will join a small, talented team and lead... 
    Senior

    Solana Foundation

    New York, NY
    1 day ago
  •  ...dictated by data quality. The Role We are hiring a Senior Backend Engineer to build the systems that ingest, process, store, and...  ...You Are Required Background ~7+ years of backend/software engineering experience (or equivalent impact). ~ Strong system... 
    Senior

    Mecka AI

    New York, NY
    4 days ago
  • $132k - $150k

     ...across the United States and operates real-world systems in demanding industrial environments. Role Overview As a Senior Software Engineer - Backend & AI Infra focus, you will play a critical role in evolving CVector’s core backend platform. You will work on time-... 
    Senior
    Work experience placement
    Live in
    Work at office
    Visa sponsorship
    Flexible hours

    CVector - Industrial AI

    New York, NY
    15 days ago
  •  ...step at a time. To those who see AI as a driver of progress, come build the future together. The Crown Is Yours As a Senior Backend Software Engineer, you’ll be part of one of our multidisciplinary teams where you’ll work closely with designers, product managers, data... 
    Senior
    Immediate start

    DraftKings

    New York, NY
    4 days ago
  •  ...credit cards. You can view public analytics on Dune for Cash and Stake. Position overview: We're looking for a senior full backend software engineer to own core backend architecture, card transaction processing and high availability. You will belong to a key... 
    Senior

    Etherfi

    New York, NY
    1 day ago
  • $182.8k - $247.3k

     ...Observability team builds infrastructure and tools that give engineers confidence and clarity at Duolingo scale. We create...  ...reliability. You will... Collaborate on software projects with product design and backend aspects Develop, release, and maintain backend... 
    Senior
    Work experience placement

    Colorwave Inc

    New York, NY
    3 days ago
  •  ...Senior Software Engineer (Backend-Leaning Full Stack) PulseRise Technologies | Posted Mar 11 Full-time New York Negotiable Unknown We are hiring Senior Software Engineer to help shape and scale a mission-critical fintech platform serving millions of consumers. Rather than... 
    Senior
    Full time
    Immediate start

    PulseRise Technologies

    New York, NY
    3 days ago
  • $185k

     ...come into the office on a hybrid basis, three times a week (Tuesday, Wednesday, Thursday).* Fubo is looking for a Senior Backend Software Engineer to join our product development team. In this role, you'll design and build the scalable APIs that power Fubo's backend... 
    Senior
    Work at office

    Fubo

    New York, NY
    1 day ago
  • $135.96k - $203.94k

    ## Senior Software Engineer - BackendApplyremote type: Remotelocations: United States - Remotetime type: Full timeposted on: Posted Todayjob requisition...  ...motivated and experienced Senior Software Engineer - Backend to join the fully remote Engineering team at Feedonomics.... 
    Senior
    Local area
    Remote work

    BigCommerce

    New York, NY
    2 days ago
  •  ...Backend Engineer who builds and scales 0→1 products with a distributed architecture and high performance Aurasell is pioneering the world'...  ...record is purpose-built for the new agentic era in business software. Founded in the post-2022 AI era, Aurasell eliminates the need... 
    Senior
    Immediate start
    Remote work

    Aurasell Inc.

    New York, NY
    2 days ago
  •  ...Senior Backend Engineer We are seeking a talented, driven, and experienced Senior Backend Engineer to join us in defining the future of AI...  ...maintaining and up-leveling operational excellence across software organizations Our Tech Stack Our backend platform is... 
    Senior
    Remote work

    Counsel Health

    New York, NY
    2 days ago
  •  ...of data-driven dealmaking. Our proprietary Deal Reasoning Engine transforms a firm's goldmine of complex documents into...  ...us on LinkedIn. About the Role We are hiring a Senior Software Engineer, Backend to join our product team. You'll be a key player in designing... 
    Senior
    Work at office
    Flexible hours

    Centari

    New York, NY
    2 days ago
  • $168k - $280k

     ...AI-first products and experiences that will become core to how our customers manage and grow their businesses. As a Senior Fullstack Software Engineer, you'll be one of the early members helping define the architecture, systems, and product experience. You'll work closely... 
    Senior
    Work at office
    Shift work
    3 days per week

    Rippling

    New York, NY
    2 days ago
  •  ...system performance and reliability Drive engineering excellence through best practices in...  ...'ll Bring to the Team ~5+ years of software engineering experience ~ Experience architecting...  ...of scaling complex, data-intensive backend systems through rapid growth (ideally in... 
    Senior
    Local area
    Flexible hours

    Modern Fertility

    New York, NY
    1 day ago
  • $193.4k - $290k

     ...outcomes. We stay close to our customers — from leadership to engineers — and work together to solve real problems with urgency and...  ...today — and we’re just getting started. Role Overview As a Backend Software Engineer on the Product Engineering team at Harvey, you will... 
    Senior
    Relocation package

    Harvey

    New York, NY
    4 days ago
  • $158.4k - $207.9k

     ...Senior Software Engineer, Backend New York, New York, United States Hi, we're Oscar. We're hiring a Senior Software Engineer, Backend to join our Engineering team. Oscar is the first health insurance company built around a full stack technology platform and a... 
    Senior
    Full time
    Work at office
    Flexible hours

    Oscar Health

    New York, NY
    16 hours ago

Do you want to receive more vacancies?

Subscribe and receive similar vacancies to Senior Software Engineer, Backend. Be the first to apply!