Back End Developer

Crossing Hurdles

New York (NY)

Hybrid

USD 140,000 - 230,000

Full time

14 days+

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Job summary

A leading financial technology firm in New York is seeking a Backend Engineer with expertise in FinTech Payments to join their early team. The ideal candidate will build core infrastructure for payroll and compliance automation. Strong tech fundamentals, experience with fintech products, and an entrepreneurial drive are essential. This position offers hybrid work flexibility and a rare chance to make a significant impact on company growth.

Qualifications

1-6 years of back-end engineering experience.
Proven experience in fintech/payments (ACH, card networks, etc.).
Strong backend expertise with ability to work full-stack.

Responsibilities

Build performant, reliable systems for processing payments.
Scale systems to handle increased load.
Collaborate with CTO and CEO.

Skills

FinTech Payments experience

Backend engineering fundamentals

APIs integration

AI tools familiarity

Ability to thrive in fast-paced environments

Tools

Python

Node.js

Java

Postgres

Job description

Overview

This range is provided by Crossing Hurdles. Your actual pay will be based on your skills and experience — talk with your recruiter to learn more.

Base pay range

$140,000.00/yr - $230,000.00/yr

Direct message the job poster from Crossing Hurdles

About our client

Our client is an automated back-office platform for startups. We let founders set up HR, payroll, and tax compliance for their teams in just 10 minutes. Using AI Agents, we automate state tax registrations, filings, and compliance monitoring across hundreds of jurisdictions — ensuring founders never waste time on HR ops again.

Backed by Y Combinator and investors including Elad Gil, Drew Houston (CEO, Dropbox), Arash Ferdowsi (Co-founder, Dropbox), Kyle Vogt (CEO, Cruise), Balaji Srinivasan, and SV Angel, we’ve raised $24M to reinvent back-office infrastructure for startups. We’re a small, fast-moving team.

About this role

We’re looking for a Backend Engineer with strong FinTech Payments experience to join our early team. You’ll be a key contributor in building the core infrastructure powering payroll, payments, and compliance automation. This is a rare opportunity to join an early-stage, high-growth startup, work directly with the founding team, and have an outsized impact on the product and company trajectory.

Location: New York (Hybrid, 4 Days work from office)

What You\'ll Do

Build performant, reliable, and fault-tolerant systems capable of processing billions of dollars globally from the ground up
Help us scale 10x in the next year
Have ownership as we redesign our tech stack
Collaborate directly with the CTO and CEO

Requirements for this role:

1-6 Years or Back-end engineering experience with strong technical fundamentals (data structures, algorithms, distributed systems, databases, APIs).
Proven experience in fintech/payments, such as ACH, card networks, payroll, compliance, or tax infrastructure.
Demonstrated track record of building and shipping fintech/payments products — should be able to detail your contributions.
Strong backend expertise, with the flexibility to work full-stack when needed.
Experience integrating with payments, payroll, or tax APIs and building secure, reliable financial systems.
Comfortable with AI tools and able to leverage them in daily development.
Prior experience in a high-growth startup (or strong entrepreneurial drive).
Ability to thrive in ambiguous, fast-moving environments — scrappy, hungry, and execution-focused.
Familiarity with compliance-heavy systems (KYC/AML, tax filings, regulatory frameworks). Exposure to management or mentorship responsibilities.
Familiarity with compliance-heavy systems (KYC/AML, tax filings, regulatory frameworks).
Hands-on experience with modern backend stacks (Go, Python, Node.js, Java, Postgres, cloud infrastructure).