Founding Backend Engineer
NxT Level
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
$180k - $250k
...signals, and significant ownership upside. Engineers who enjoy solving money-movement problems at scale will thrive here. Our founding team is building production-grade money... ...Do Design, build, and operate core backend services for stablecoin infrastructure: mint...SuggestedImmediate startRelocation package- ...of their healthcare. About Us Founded by experienced leaders from top... ...We’re looking for a seasoned software engineer to help shape and execute our technical... ...: Architect and develop scalable backend services and APIs. Collaborate with cross...SuggestedFull timeWork at officeRemote work
- ...Join SignalFire’s Talent Network for Founding Back-end Software Engineer Roles at VC-Backed Startups This is not an application for a specific job... ...We’re looking to connect with exceptional Founding Backend Engineers who are excited about building scalable, high...SuggestedFull time
- ...product by actually using a browser while it speaks, and follows up until the deal closes. A full AI seller, available 24/7. As a founding engineer in New York, you’ll own the live-call pipeline and the infrastructure behind it, shaping the product from day one. #J-18808-...Suggested
- Ceno is hiring a founding backend engineer to build out the production systems that move customer money across the US-Asia corridor. You will own the trade lifecycle, internal ledger, FX, and market data, and work directly with the CTO to shape architecture from week one...Suggested
- ...runway and are looking to continue growing our engineering team. About the role We’re looking for a founding BE infrastructure engineer to work closely with... ...engineering team, and customers. What you’ll do: Backend or even full-stack development of new platform...Full timeWork at officeFlexible hours
$140k - $160k
...Atomic is the venture studio that co-founds companies by pairing founders with the best... ...We’re seeking a product-driven, founding engineer to join our team. As a core member of our... ...product by working throughout the stack - backend, frontend, and infrastructure, with an emphasis...Full timeWork at officeLocal area3 days per week- ...Founding Fullstack Engineer (3–8 Years Experience) Location: New York, NY (In‑Person) Compensation: Top of Market + Equity + Benefits About... ...and build user‑facing features across frontend + backend Translate complex regulatory workflows into sleek, intuitive...Full time
- ...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...Full timeFor contractorsImmediate start
- ...gold standard and go-to for top-tier quality financial services for the backbone of the American economy. The Role As a Founding Engineer, you'll work directly with the founders to build the AI-native platform that empowers our M&A advisors to be 10x more productive...Full timeWork experience placementCasual workRelocation package
- ...seamless and quick payments. Across the Link Engineering org, we focus on building delightful... ...on our team matching process can be found here. What you'll do We're looking for engineers... ...mindset Interest in working as a backend specialist across varying technologies and...Internship
- ...Backend Engineer | Legal AI Startup | NYC Primis is partnered with a well-funded, early-stage AI startup in NYC building frontier legal infrastructure for private markets. Founded by a former Law partner, the platform extracts, structures, and reconciles corporate...
- ...Chariot's Engineering Hire Chariot's engineering hire will be responsible for taking the... ...will work closely with the CEO and team of founding engineers to build out a product that... ...Responsibilities: Manage and build out the backend server applications and components that...Work experience placementWork at officeWork from homeMonday to FridayMonday to Thursday
- ...Job Title: Founding Frontend Engineer (Mobile, Social, Marketplace) Location: Remote Company: Flocker Position Overview:... ...and attention to interaction details Collaborate with backend and AI engineers for seamless integration with server-side...Remote jobFull time
$110k - $150k
...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 timeWork at officeWork from home$180k - $250k
...Are Lightning AI is the company behind PyTorch Lightning. Founded in 2019, we build an end-to-end platform for developing,... ...our impact. What We're Looking For We're looking for a Backend Engineer to help develop and scale the Lightning AI platform, spanning...Work at officeWork from homeFlexible hours2 days per week- ...Full-Stack Engineer Opportunity At Lume Lume is doing for enterprise data what Facebook... ...the stack: Work on FastAPI/Python backend services, API development, and PostgreSQL... ...happens. High Impact: You will be a founding member and thus inherit the responsibilities...Work at office
- ...Jeeves, and DoorDash. About the Role We’re hiring a Backend software engineer to build and scale the core infrastructure that powers our... ...bureaucracy. You’ll work directly with the founders and founding team, ship impactful work weekly, and play a core role in...Full time
- .... Both founders are technical. Every engineer on the team has experience at early-stage... ...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...Full timeWork at office
- ...market is massive. The Team The founding team spent a combined 40+ years at Palantir... ...AI platform and built the analytics engine behind $100M+ contracts. Our founding engineers... .... You'll own critical infrastructure: backend services that orchestrate AI workflows, data...Full timeWork at office
$140k - $170k
...Title : Founding Full-Stack Engineer Location : New York City (Union Square) In-person Reporting Structure : Reports directly to the Founding Team Company Description Monk is building a Multi-Agent Revenue OS for modern finance teams. They are an early...Immediate start- Ovise is seeking a backend-focused full stack engineer to support the development of AI-driven search and data products. This role offers the opportunity to work closely with the founders, owning production code from day one while joining a growing team. The ideal candidate...
- Our FinTech client is looking for a Staff Backend Software Engineer to join the team responsible for the core calculation infrastructure that powers... ...us apart in the industries we serve. About Solomon Page Founded in 1990, Solomon Page is a specialty niche provider of...Work at office2 days per week3 days per week
- ...Join SignalFire’s Talent Network for Founding Full Stack Software Engineer Roles at VC-Backed Startups This is not an application for a specific job. Instead, this is a way to get on the radar of VC-backed startups that are actively hiring Engineering talent. If you have...Full time
- ...Join SignalFire’s Talent Network for Founding Front-End Engineer Roles at VC-Backed Startups This is not an application for a specific job. Instead... ...responsiveness Collaborate with product designers, backend engineers, and founders to align on vision and execution...Full time
$120k - $180k
Overview Founding Full-Stack Engineer (EMS Experience Required) Join to apply for the Founding Full-Stack Engineer (EMS Experience Required) role... ...full-stack development. Ability to work on both frontend and backend applications as a versatile full-stack developer....Full timeWork at office$130k - $170k
...About the Role The Backend Engineer at iCapital will play an integral role in designing and implementing systems that power the iCapital... ...requirements, reviewing work in progress, and addressing issues found via testing. Our platform sits on top of a micro-services...Full timeWork at officeRemote work$200k - $250k
...Description Job Description Join an elite team as Senior Backend Engineer architecting the AI-driven infrastructure that democratizes access... ...system design. — Proven startup track record ideally as a founding or early engineer at a Seed or Series A company. — Advanced...$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...$150k - $225k
...health insurance company. Clarion was founded by a Stanford/Harvard-trained physician... ...Chairs and Ophelia) and an ex-Amazon Alexa engineer who led AI/ML teams at Salesforce. We’ve... ...and the opportunity to own foundational backend systems at a critical inflection point....
Do you want to receive more vacancies?
Subscribe and receive similar vacancies to Founding Backend Engineer. Be the first to apply!
- java developer backend New York, NY
- backend python developer New York, NY
- senior backend developer New York, NY
- remote back end developer New York, NY
- back-end developer New York, NY
- backend software engineer New York, NY
- backend internship remote New York, NY
- backend intern New York, NY
- backend api developer
- java developer backend



