Principal Open Source Engineer — .NET/TS + Angular/React

Motion Recruitment

Boston (MA)

On-site

USD 170,000 - 210,000

Full time

11 hours ago
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Benefits offered by this job

Bonus OR Commission eligible
Medical Insurance
Dental Benefits
Vision Benefits
PTO
401(k) including match

Job summary

Motion Recruitment seeks a Principal Open Source Software Engineer in Boston to lead strategic technical direction across multiple open source projects. You'll combine hands-on software development with architectural ownership, guiding platform strategy and engineering excellence.

The role emphasizes .NET/C#, Angular/React, TypeScript, REST APIs, and scalable cloud-native solutions. You will mentor senior engineers, drive API and architecture decisions, and collaborate with stakeholders and the

Qualifications

  • 10+ years of software engineering with .NET/C# and related tech.
  • Deep expertise in Angular/React and front-end design.
  • Strong REST API, SQL, and EF proficiency.
  • Experience guiding large engineering initiatives in Agile setups.
  • Open source leadership and collaboration across teams.

Responsibilities

  • Drive hands-on development across open source products and platforms.
  • Design scalable solutions using .NET and C#.
  • Provide technical direction for front-end via Angular/React.
  • Define API strategy, development, and integration initiatives.
  • Lead architecture reviews and critical decisions.
  • Establish engineering best practices and mentor engineers.
  • Support cloud-native development and modernization efforts.
  • Evaluate community contributions and proposals.
  • Partner with leadership to shape roadmaps and platform strategy

Skills

NET/C# expertise
Angular
React
TypeScript/JavaScript
REST API development
SQL/Database design
Entity Framework
Agile leadership
Open source leadership

Tools

Azure
AWS
Kubernetes
Docker
CI/CD pipelines

Job description

Motion Recruitment seeks a Principal Open Source Software Engineer in Boston to lead strategic technical direction across multiple open source projects. You'll combine hands-on software development with architectural ownership, guiding platform strategy and engineering excellence.

The role emphasizes .NET/C#, Angular/React, TypeScript, REST APIs, and scalable cloud-native solutions. You will mentor senior engineers, drive API and architecture decisions, and collaborate with stakeholders and the

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