"backend systems" Jobs

406 open tech roles matching “backend systems”, taken straight from company career pages — not reposted from other job boards. Most in demand right now: Python, TypeScript, React. Every listing is re-checked daily and closed roles are removed.

Showing 20 of 406 results

Fin

Join Fin as a Senior Backend Engineer to design and build core systems for a next-generation payments platform.

Fin New York, NY Published 11 months ago
Flexible on stack
Kalshi

Join Kalshi as a Trading Systems Engineer to build and maintain the infrastructure for trading operations in a fast-growing financial market.

Kalshi New York Office Published 2 months ago
Flexible on stack
Tennr

Join Tennr as a Backend Engineer to architect scalable systems that enhance patient care and streamline healthcare workflows.

Tennr New York City Office Published 9 months ago
Flexible on stack
Rogo

Join Rogo as a Backend Software Engineer to automate internal systems and enhance financial workflows using AI.

Rogo New York City Published 1 month ago
Flexible on stack 70% coding
Method Security

Build and scale core systems for autonomous cybersecurity products in a mission-driven team.

Method Security New York City Office $140k–$190k/yr Published 1 year ago
Flexible on stack
DualEntry

Join DualEntry as a Senior Backend Engineer to design and build critical accounting systems in a fast-paced, high-trust environment.

DualEntry New York City $200k–$350k/yr Published 7 months ago
Flexible on stack AI-first team
Doppel

Join Doppel as a backend engineer to build scalable systems for AI-native social engineering defense.

Doppel New York Published 9 months ago
Ramp

Join Ramp as a Backend Software Engineering Intern to build scalable systems that power financial products.

Ramp New York, NY (HQ) $12.5k–$12.5k/mo Published 6 months ago
Flexible on stack
Kalshi

Join Kalshi as a Software Engineer to build next-generation financial markets with a focus on trading platforms and high-performance systems.

Kalshi New York Office $200k–$280k/yr Published 10 months ago
Tennr

Join Tennr as a Senior Backend Engineer to architect scalable solutions that enhance patient care in the healthcare system.

Tennr New York City Office Published 3 months ago
Flexible on stack
Ornn

Join Ornn as a Senior Engineer to build and operate the infrastructure layer for AI compute in a lean New York team.

Ornn New York, United States Published 2 weeks ago
Flexible on stack
Doppel

Join Doppel as a backend engineer to build scalable systems for social engineering defense.

Doppel San Francisco, New York Published 3 weeks ago
Databento

Join Databento as a Site Reliability Engineer to enhance platform uptime and performance in a remote-first environment.

Databento Remote / San Francisco / New York / Salt Lake City Published 2 years ago
Flexible on stack
Block

Join Block as a Senior Software Engineer to build and operate database and storage platform software for reliable product development.

Block New York, NY, United States of America $217.8k–$326.8k/yr Published 1 month ago
Flexible on stack
UniSwap

Join Uniswap as a Senior Backend Engineer to build the next generation of financial products in a dynamic team.

UniSwap New York $180k–$226k/yr Published 7 months ago
Flexible on stack
Concourse

Join Concourse as a software engineer to build and scale backend systems for AI agents in a fast-growing startup.

Concourse New York City Published 11 months ago
Flexible on stack 70% coding
The Better Money Company

Join a small team to build a stablecoin clearinghouse as a Senior Platform Engineer focused on correctness and efficiency.

The Better Money Company New York City Published 3 months ago
Flexible on stack
Blackbird

Join Blackbird as a Senior Fullstack Engineer to develop a critical payments terminal for restaurants.

Blackbird New York $180k–$220k/yr Published 8 months ago
The Better Money Company

Join a small team to build a stablecoin clearinghouse as a Sr Backend Engineer in New York City.

The Better Money Company New York City Published 3 weeks ago
Flexible on stack
Ornn

Join Ornn as a Software Engineer to build a financial infrastructure platform for AI compute with significant influence over architecture.

Ornn New York, United States Published 2 weeks ago
Flexible on stack