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Principal Engineer – Back-End
Location
United States
Posted
5 days ago
Salary
$213K - $273K / year
Seniority
Lead
Job Description
Principal Engineer – Back-End
Horizon3.ai
• Own the end-to-end technical vision for the RBVM and its supporting services • Partner with stakeholders to translate product goals into technical strategy and execution plans • Contribute production code and set design quality standards • Lead architectural decisions for scalable backend systems • Drive execution across multiple projects, identifying risks and dependencies • Communicate complex technical concepts clearly to stakeholders • Mentor and develop engineers on the team • Support hiring of strong engineering talent
Job Requirements
- Bachelor’s degree in Computer Science or related field, or equivalent practical experience.
- 1–4 years of professional software engineering experience.
- Experience building backend services using at least one modern language, such as Python, Go, Java, TypeScript, or similar.
- Experience working with SQL and at least one relational database in production.
- Experience building backend services on a cloud platform (AWS, GCP, or Azure).
- Familiarity with Docker and containerized applications.
Benefits
- Health, vision & dental insurance for you and your family
- Flexible vacation policy
- Generous parental leave
- Equity package in the form of stock options
- Inclusive Team promoting diversity
- Growth opportunities in a dynamic team
- Collaborative and innovative culture
- Competitive compensation
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.NET Developer
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• Collaborate with engineers, product owners, and stakeholders to design end-to-end solutions using ASP.NET Core, React, and Azure. • Translate user requirements into scalable solutions, following Agile/SCRUM and the full SDLC. • Build rich client-side experiences with React (Hooks, Redux/Context API, TypeScript). • Develop RESTful and GraphQL APIs with C#, ASP.NET Core Web API, and EF Core. • Implement cloud-native solutions on Azure (App Service, Functions, SQL Database, Blob Storage, Key Vault, DevOps pipelines). • Design and optimize SQL Server databases (SQL Server 2019/2022, Azure SQL). • Write unit/integration tests (xUnit, NUnit, Jest) and automate releases via Azure DevOps/GitHub Actions. • Participate in code reviews, pair programming, and technical design discussions. • Continuously update knowledge on .NET, React, Azure, and best practices.
• Design and implement multi-file coding tasks across bug fixing, feature development, refactoring, and testing • Write clear natural-language specifications and reference implementations • Develop and extend unit and integration test suites • Review peer-generated tasks for correctness, clarity, and realism • Identify edge cases, ambiguities, and potential failure modes • Ensure alignment between specifications, code, and expected outputs
• Design and implement multi-file coding tasks across bug fixing, feature development, refactoring, and testing • Write clear natural-language specifications and reference implementations • Develop and extend unit and integration test suites • Review peer-generated tasks for correctness, clarity, and realism • Identify edge cases, ambiguities, and potential failure modes • Ensure alignment between specifications, code, and expected outputs
