Ascen

EOR for the staffing industry

Senior Full Stack Software Engineer (100% Remote)

$90K - $110K
Location
BR / AR / UY / Remote (BR; AR; UY)
Job Type
Full-time
Experience
6+ years
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Francis Larson
Francis Larson
Founder

About the role

Senior Full-Stack Software Engineer

100% Remote | Must have at least 4 hours of overlap with US Eastern Time (EST)

About Ascen

Ascen (ascen.com) is a Y Combinator-funded back-office platform built exclusively for staffing companies. We empower staffing firms to focus on their clients and candidates by providing a robust suite of back-office services—including contractor onboarding, timesheets, payroll, invoicing, funding, and employer of record—within a sleek, white-label, all-in-one platform.

We’re profitable, experiencing rapid growth, and backed by leading investors, including Y Combinator. Now, we’re seeking an experienced Senior Full-Stack Software Engineer to join our remote team and help drive our next phase of innovation.

Role Overview

In this role, you will be a crucial contributor to our platform, designing and implementing features across the tech stack, optimizing performance, and ensuring the highest security standards. You’ll have a chance to build impactful solutions that streamline staffing operations for our clients.

Ideal Qualifications

  • 7+ years of experience in Python.
  • 7+ years of experience building web applications (FastAPI, Django, or Flask).
  • 2+ years of experience with JavaScript frameworks (React or Vue).
  • Comfortable independently developing full-stack features, from backend to frontend.
  • Extensive knowledge of cybersecurity best practices.
  • Experience with payments or fintech is preferred.
  • Must be able to work with at least 4 hours of overlap with US Eastern Time (EST).

Interview Process

  • Introductory Call – 15-30 minutes
  • Meet with a member of our team for a brief conversation about your background and the role.
  • Technical Deep Dive – 45-60 minutes
  • Walk us through a feature or project you’ve built, focusing on code review, design decisions, improvements, and lessons learned. This is an opportunity to showcase your technical expertise and problem-solving approach.

About the interview

  • Introductory Call – 15-30 minutes
  • Meet with a member of our team for a brief conversation about your background and the role.
  • Technical Deep Dive – 45-60 minutes
  • Walk us through a feature or project you’ve built, focusing on code review, design decisions, improvements, and lessons learned. This is an opportunity to showcase your technical expertise and problem-solving approach.

About Ascen

EOR for the staffing industry

Ascen
Founded:2018
Team Size:17
Location:Boston
Founders
Francis Larson
Francis Larson
Founder