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

Founding Backend Engineer

NxT Level

Job Description

Job Description

Founding Senior Backend Engineer (Data Platform / Integrations)

Location: New York City — In-Person

The Opportunity

Our client is hiring a Founding Senior Backend Engineer to own the data platform end-to-end and build the team around it. This is a true founding role: you will define canonical data models, ship the event backbone, enable analytics/experimentation, and create the integration architecture that makes adding EMR #5 configuration—not months of bespoke engineering.

If you're energized by unglamorous but high-leverage infrastructure (data modeling, pipelines, events, integrations), this is a rare seat.

What You'll Own

1) Outcome Data Layer (Instrumentation + Measurement)

Build the instrumentation layer that ties every agent decision to customer-level business metrics—e.g., client retention, caregiver satisfaction, authorization utilization, hours erosion. This becomes the foundation for experimentation, ROI claims, ML improvements, and product strategy.

2) Real-Time Event Backbone

Design an event-driven architecture where visit status changes, clock-ins, call-outs, ranking decisions, and workflow outcomes flow in real time—so internal systems (and future products) can consume events without constant EMR polling or rate-limit band-aids.

3) Integration Platform + Canonical Models

Create canonical data models across WellSky, HHAeXchange, AlayaCare, and Axxess so adding the next EMR is configuration-driven. This also unlocks revenue-cycle automation by enabling unified authorization and billing models.

4) Analytics & Experimentation Tooling

Build the warehouse + tooling so engineers can answer: “Did this change improve customer outcomes?” quickly and consistently—without writing one-off queries every time.

What Our Client Is Looking For

You're likely a fit if you are:

  • Systems-minded and data-opinionated: you treat data modeling as a craft and can explain why entities should relate a certain way
  • Comfortable with messy reality: you're excited by pipelines, joins, ETL/ELT, and cleaning inconsistent third-party data
  • Event-driven by default: you've built (or deeply understand) real-time architectures, streaming/event backbones, and durable systems
  • Integration-savvy: you've shipped platforms that unify multiple external systems into clean internal abstractions
  • AI-native and curious: you naturally look for leverage (LLMs for parsing/structuring, automation for data QA, agent-based extraction when APIs don't exist)

Bonus signals

  • Experience with healthcare workflows, EMRs/EHRs, home health, or revenue-cycle concepts (authorization, billing, reimbursement)
  • Familiarity with healthcare data modeling standards (e.g., FHIR-style entity thinking)
  • Experience building experimentation frameworks or measurement systems tied to business outcomes
  • Background in data platform teams (data engineering + backend/platform) at high-growth startups

What Success Looks Like (The Arc)

Q2: Ship the outcome data layer + real-time event backbone. Make experimentation and measurable ROI a default.
Q3: Deliver the integration abstraction + canonical models. EMR #5 becomes configuration. RCM roadmap becomes real.
Year-end: You've built and are leading a 3–5 person data platform team (integration, data engineering, analytics). You're operating as the Head of Data Platform.

Why This Role

  • Founding-level ownership on a platform that directly drives revenue outcomes
  • Complex, high-impact systems work: data, events, integrations, measurement, experimentation
  • Clear path to technical leadership and building a team
  • Real customers, real workflows, and real-world leverage—your architecture decisions compound fast
Vacancy posted 21 days ago
Similar jobs that could be interesting for youBased on the Founding Backend Engineer in New York, NY vacancy
  • $160k - $200k

    *Founding Backend Engineer* *Company Overview* Client is a fast-growing social shopping platform co-founded by Phoebe Gates and Sophia Kianni. The platform currently serves over 350,000 users and boasts a 90% retention rate. Phia combines community, personalization, and... 
    Suggested
    Full time
    H1b
    Relocation
    Visa sponsorship
    Relocation package
    Night shift

    Fuku

    New York, NY
    19 hours ago
  • $180k - $230k

    Open Systems Technologies is seeking a Backend Founding Engineer to join a fast-growing startup in New York City. The role requires 4 days onsite in NYC and a track record of startup experience. Compensation is $180-230k plus equity, with a strong emphasis on independent... 
    Suggested

    Open Systems Technologies

    New York, NY
    2 days ago
  • Closai is seeking a Founding Engineer in New York, NY, hybrid. You will own the technical architecture end-to-end, architect, code, and ship...  ...intelligence alongside the founder and CEO. You’ll drive the core backend, data pipelines, and enterprise integrations while shaping... 
    Suggested

    Closai

    New York, NY
    4 days ago
  • $140k - $210k

     ...At the SDF, a small team of roughly 8 engineers is incubating a novel distributed systems...  ...to be. About the Role: We need a Backend/Systems Engineer who owns the critical layer...  ...real time creating real world utility. Founded in 2014, the Stellar Development... 
    Suggested
    Temporary work
    Work at office
    Local area
    Worldwide
    Flexible hours

    Stellar Development Foundation

    New York, NY
    19 hours ago
  •  ...Founding Engineer Opportunity As our founding engineer, you'll be at the forefront of building a revolutionary platform to address the global...  ...impressive independent applications. Deep expertise in backend development with Python, C, and C++, coupled with the ability... 
    Suggested

    Manifest

    New York, NY
    4 days ago
  •  ...Found Software Engineer | New York, NY (2 Days In Office Per Week) About the Role We're partnering with a well-funded, venture-backed startup...  ...with full-stack and AI development (modern web frameworks, backend languages, cloud infrastructure, LLMs, RAG, agent... 
    Full time
    Work at office
    Immediate start
    2 days per week

    Plug Consulting

    New York, NY
    11 days ago
  • $190k - $230k

     ...Founding Full-Stack Engineer Location: New York City Company Stage of Funding: Venture-Backed Pre-Seed AI Infrastructure Startup Office...  ...in production. Develop full-stack applications across backend infrastructure, APIs, data systems, and customer-facing interfaces... 
    Work at office

    Recruiting from Scratch

    New York, NY
    2 days ago
  •  ...Founding Fullstack Engineer (3–8 Years Experience) New York City (5 days on-site) · Top of market + equity + benefits TL;DR: Build the product...  ...contracts to pixel-perfect UI. Think 60% frontend / 40% backend with the autonomy to make technical decisions and the accountability... 
    For contractors
    Immediate start

    Everstar Inc

    New York, NY
    4 days ago
  • $250k

    A fast-growing tech company in New York is seeking a Founding Engineer to build and ship assessment tools that simulate technical interviews. This role offers the chance to take ownership of projects in a collaborative environment and significantly impact how staffing firms... 

    MLabs

    New York, NY
    2 days ago
  • $125k - $175k

    A mental health startup is seeking a Founding Full-Stack Engineer to lead the development of AI-powered systems aimed at improving mental health care for older adults. This is a unique opportunity to shape core software from architecture to launch while working alongside... 
    Remote job

    Sailor Health

    New York, NY
    1 day ago
  • $176k - $242k

     ...Job Description Job Description Senior Backend Software Engineer Company: Atoms (Picnic) Location: New York, NY (in office 5 days per...  ...and restaurants. The role is listed by Atoms, the company founded by Travis Kalanick after Uber, which brings Physical AI to... 
    Full time
    H1b
    Work at office
    Local area
    Visa sponsorship

    Transparent Search Group

    New York, NY
    3 days ago
  • $140k - $170k

    Founding Full-Stack EngineerMonk is building a Multi-Agent Revenue OS for modern finance teams. They are an early-stage startup building...  ...demand, and they are now hiring a small number of exceptional engineers to help shape both the product and the company from the ground... 
    Immediate start

    Higher People

    New York, NY
    2 days ago
  • $160k - $240k

     ...Backend Engineer Nitra's mission is to build a more efficient healthcare system and the technology that makes it possible. Our goal is...  ...organizational skills. The desire to be mentored by a unicorn founding CTO and engineers with experience at top notch companies like... 
    Full time
    Work at office
    Work from home

    nitra

    New York, NY
    3 days ago
  •  ...Senior Backend Engineer New York, NY or Remote About Us Health is the most important thing in life, and the American healthcare system...  ...to deliver insurance-covered care across all 50 states. Founded four years ago, we've completed millions of appointments, tripled... 
    Full time
    Work at office
    Remote work

    Nourish Inc

    New York, NY
    19 hours ago
  •  ...reporting, and payroll for growing companies. JOB SUMMARY As a Founding Product Engineer, you will take full ownership of critical customer problems...  .... - Design and build full-stack solutions across frontend, backend, AI, data, and external integrations. - Develop AI finance... 
    Full time
    Remote work

    Truelogic

    New York, NY
    17 days ago
  • Job Description Job Title: Founding Frontend Engineer (Mobile, Social) Location: Remote Company: Flocker Position Overview: We've spent two...  ...and attention to interaction details Collaborate with backend and AI engineers for seamless integration with server-side... 
    Remote job

    Flocker

    New York, NY
    1 day ago
  •  ...day of school whilst pursuing their MBAs at Stanford and co-founded Tetrix in the Summer of 23. Who You Are You're proactive...  ...others. You're experienced and thoughtful – 10+ YOE in backend engineering using Python. You have strong technical leadership experience... 
    Summer work
    Work at office

    Tetrix

    New York, NY
    2 days ago
  •  ...their products. We are building a commercial engine that allows pharmaceutical marketers to...  ...for a Front-end/UX engineer to join our founding team and help architect and deliver the...  ...collaborative workflows. Working closely with backend and AI engineers to ensure seamless data... 
    H1b
    Visa sponsorship
    Relocation package
    Night shift

    Solstice Health

    New York, NY
    2 days ago
  •  ...Experience: 3-10 years Stage: Seed → Series B Role Type: Early hire / founding engineer Why This Role Exists You’ll design and build the systems that...  ...working directly with the founders. What You’ll Do Architect backend services and distributed systems Build scalable APIs and... 
    Weekday work

    Weekday

    New York, NY
    19 hours ago
  •  ...Staff Software Engineer Vendelux is building the category-defining platform for event...  ...and maximize every event interaction. Founded in 2021, Vendelux is a Series B SaaS company...  ..., React, MUI/Shadcn, Node.js Backend: Python, Django, Typescript, Node.js, MySQL... 
    Full time
    Work at office

    Vendelux

    New York, NY
    1 day ago
  • $185k - $235k

     ...problems day to day, wherever you sit in the company. Founded in 2021, Fora has grown to a team of 250+ full-time...  ...About The Role We're looking for a seasoned Senior/Staff Backend Engineer to join us as we continue to build Fora's products and infrastructure... 
    Full time
    Part time
    Work at office
    Work from home

    Fora

    New York, NY
    2 days ago
  • $95k - $115k

     ...industry-leading proprietary software. Founded by leaders from Google, Facebook, and Yahoo...  ...than 20 years of digital advertising, engineering, and marketing experience, we build tools...  ...The Role We're looking for a Backend Developer with 1–3 years of experience to... 
    Full time
    Summer work
    Work at office
    3 days per week

    Eulerity

    New York, NY
    4 days ago
  •  ...culture. Both founders are technical. Every engineer on the team has experience at early-...  ...from zero to scale, and one previously founded a YC-backed company. We care deeply about...  ...decisions, and ship. Role: Senior Backend Software Engineer We're a tiny engineering... 
    Full time
    Work at office

    Alpaca Health

    New York, NY
    19 hours ago
  • $140k - $190k

     ...forward, the support to navigate challenges, and the opportunity to shape the future of cybersecurity. Role Overview As a Backend Engineer at Method Security, you will build and scale the core systems that power our autonomous cybersecurity products. This role... 
    Shift work

    Method Security

    New York, NY
    3 days ago
  •  ...Backend Engineer Our client is a next-gen trading app and registered investment advisor (RIA) making professional-style investing accessible to everyone. Backed by notable venture investors, the company is ranked among the Top 30 Most Downloaded Finance Apps and is... 

    Oxenham Group

    New York, NY
    19 hours ago
  • $500 per month

     ...superintelligence.To achieve this, we need more great engineers. The work affects millions of people...  ...because we have brilliant founders, have found commercial success, and see a clear path...  ...shape the technical direction of our backend systems. You'll lead complex projects,... 
    Immediate start

    Giga AI Inc

    New York, NY
    19 hours ago
  •  ...As we scale, we're investing deeply in engineering leadership to evolve our architecture, expand...  ...You'll work alongside a mission-driven founding team (including two female YC alumni),...  ...supply chain. Our Tech Landscape Backend: Python / Django Infrastructure: AWS (Lambda... 
    Remote work
    Flexible hours

    BlueCargo Inc

    New York, NY
    19 hours ago
  • Success Matcher Recruitment is seeking a Founding Engineer to architect the core systems of an AI agent platform for e‑commerce and fintech....  ...engineering culture as the company scales. You will design scalable backend systems, drive low-latency performance, and influence hiring... 

    Success Matcher Recruitment

    New York, NY
    2 days ago
  • Blockchain Engineer Opportunity At Superstate Tired of the inefficiencies and complexities of traditional finance? We are too. At Superstate...  ..., creeds, genders, age, veteran status and sexuality to apply. Founded in 2023, Superstate is backed by leading investors including... 
    Flexible hours

    Superstate

    New York, NY
    19 hours ago
  •  ...growing 10x last year 60+ people across the company 23-person engineering team, growing to 40+ this year Core stack: TypeScript, Next...  ...of demanding, paying customers. Role Description As a Backend Engineer, you'll help build and scale the systems that power... 
    Summer work
    Work at office
    Immediate start

    Junior Company

    New York, NY
    2 days ago

Do you want to receive more vacancies?

Subscribe and receive similar vacancies to Founding Backend Engineer. Be the first to apply!