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Senior Back-End Software Engineer

Stem IT
Full Timesenior
Alexandria, Virginia, US$175k – $235kPosted February 25, 2026

Salary Context

This role offers $175k–$235k. The median for Senior-level frontend roles is $108k–$207k (based on 91 listings). 30% above median.

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PythonTypeScriptGoScalaNode.jsGitHubAPI

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Job Description

Venture backed startup that provides a data matching platform to commercial and federal clients, is looking to hire a senior back-end software engineer in Alexandria, Virginia. This person will be heavily involved with system design, shaping and owning features from soup to nuts, crafting robust API’s, and developing AI/ML solutions. This is an excellent opportunity to get on the ground floor with a growing organization that’s hired some of the top talent in the space.

Required Skills & Experience

· 5+ years of professional software engineering

· BE experience with Node.js, Go, Scala, Python or Typescript (open to polyglots)

· Experience with system architecture and feature design

· Background shipping products from scratch

· Experience building out custom Restful API’s

· Bachelor’s in computer science or related field

Desired Skills & Experience

· Master’s in computer science or a related field

· Experience integrating data pipelines and API’s with front-end systems.

· Experience with data orchestration and data warehousing tools

· Background developing AI/ML solutions

· Open source contributions and active on github

Package

Up to 235K+ for right candidate

Equity

Flexible work schedule

Flexible time off

Competitive healthcare & medical plan

Yearly bonuses and perks

401K with employer matching

Much more

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