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Principal Engineer, C#​/.NET

Job in Boston, Suffolk County, Massachusetts, 02298, USA
Listing for: Motion Recruitment
Full Time position
Listed on 2025-12-01
Job specializations:
  • Software Development
    Software Engineer, Cloud Engineer - Software, Full Stack Developer, Backend Developer
Job Description & How to Apply Below
Position: Principal Engineer, C#/ .NET

Senior Software Engineer

We’re working with a growing SaaS company that is building workforce‑enablement tools used by large operational teams nationwide. They are hiring a Senior Software Engineer to help design and ship new platform capabilities using C#, .NET Core, SQL Server, and modern cloud technologies. This is a full‑time role offering strong engineering ownership and the chance to expand into architecture‑level work.

This is a great opportunity for someone who wants to take on meaningful technical challenges in a product‑first environment. You’ll help shape a scalable multi‑tenant platform, collaborate closely with product leadership, and work on new integrations that directly impact customer workflows. If you want a role where you can influence design decisions, build long‑term systems, and join a supportive and collaborative engineering culture, this is the place to do it.

Required

Skills & Experience
  • 8+ years of professional software engineering experience
  • Strong background in C# and .NET (Core or Framework)
  • Experience building and consuming RESTful APIs
  • Solid understanding of relational databases (SQL Server preferred)
  • Strong grounding in software engineering fundamentals (OOP, SOLID, design patterns)
  • Experience working in cloud environments (Azure or AWS)
  • Hands‑on experience with Git and CI/CD practices
  • Ability to work cross‑functionally with product and engineering teams
Desired Skills & Experience
  • Experience with message brokers like Kafka, Rabbit

    MQ, or ActiveMQ
  • Exposure to No

    SQL databases such as Mongo

    DB or Elasticsearch
  • Familiarity with containerization (Docker) and/or Kubernetes
  • Experience working in a SaaS multi‑tenant environment
  • Knowledge of API security and versioning best practices
  • Strong problem‑solving and communication abilities
What You Will Be Doing (Tech Breakdown)
  • 60% .NET backend
  • 30% SQL & data modeling
  • 10% Cloud & messaging technologies
Daily Responsibilities
  • 80% Hands‑on engineering
  • 10% Collaboration and design discussions
  • 10% Supporting integrations and platform improvements
The Offer
  • Bonus eligible
  • Medical, Dental, and Vision Insurance
  • Vacation Time
  • Stock Options

Applicants must be currently authorized to work in the US on a full‑time basis now and in the future.

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