Sr .Net Developer
3B Staffing LLC
Senior Software Engineer (Full-Stack, Backend-Leaning 70/30) Overview
We are seeking a Senior Software Engineer with a strong backend focus (70%) and solid frontend capabilities (30%) to help build and scale our Student Management platform.
This role is ideal for an engineer who excels in API design, data architecture, and system scalability , while also contributing to user-facing features when needed. You will play a key role in driving technical excellence , shaping architecture, and leveraging AI-assisted development tools to improve productivity, code quality, and delivery speed. Key Responsibilities Backend (Primary Focus - ~70%)
We are seeking a Senior Software Engineer with a strong backend focus (70%) and solid frontend capabilities (30%) to help build and scale our Student Management platform.
This role is ideal for an engineer who excels in API design, data architecture, and system scalability , while also contributing to user-facing features when needed. You will play a key role in driving technical excellence , shaping architecture, and leveraging AI-assisted development tools to improve productivity, code quality, and delivery speed. Key Responsibilities Backend (Primary Focus - ~70%)
- Design, build, and maintain scalable RESTful APIs and event-driven services using .NET / C#
- Own backend architecture, including system design, scalability, reliability, and performance
- Design and optimize MSSQL / Azure SQL databases (data modeling, indexing, performance tuning)
- Implement secure, maintainable, and efficient data access patterns
- Contribute to event-driven and distributed system design
- Build observability into services (logging, monitoring, alerting)
- Develop and enhance responsive web UI components using modern JavaScript frameworks (Svelte, React, or similar)
- Integrate frontend applications with backend APIs
- Ensure usability, performance, and accessibility standards are met
- Translate business requirements into scalable technical solutions
- Lead design and implementation of complex features
- Write and maintain automated tests (unit, integration, end-to-end)
- Conduct code reviews and enforce engineering best practices
- Mentor engineers and contribute to team growth
- Collaborate with product, UX, and other stakeholders
- Actively leverage AI-assisted development tools (e.g., code generation, test generation, documentation support)
- Use AI to accelerate development workflows, debugging, and refactoring
- Apply critical thinking to validate AI-generated outputs for quality and security
- Identify opportunities to integrate AI capabilities into the product where applicable
- Promote best practices for responsible and effective AI usage within the team
- 5+ years of software engineering experience (backend-leaning)
- Strong expertise in .NET / C# and Web API development
- Deep experience with MSSQL / Azure SQL
- Solid experience with JavaScript, HTML, CSS , and modern frontend frameworks
- Strong understanding of API design, microservices, and event-driven architecture
- Experience with cloud platforms (Azure preferred, AWS acceptable)
- Hands-on experience with CI/CD pipelines (GitHub Actions or similar)
- Strong understanding of software design patterns (MVC, SOLID, DDD)
- Experience working in Agile environments
- Experience with Svelte or modern frontend frameworks
- Familiarity with Terraform or infrastructure as code
- Experience with Docker and Kubernetes
- Knowledge of authentication/authorization (Auth0, OAuth, SSO)
- Experience with Cypress or similar testing tools
- Familiarity with GitHub Advanced Security / DevSecOps practices
- Experience with event streaming or messaging systems
- Strong ownership mindset with the ability to lead complex initiatives
- Balance of deep backend expertise and pragmatic frontend skills
- Curiosity and adaptability, especially in leveraging AI to improve engineering outcomes
- Ability to mentor others and elevate team standards
- Scalable, reliable backend services powering core platform workflows
- Clean, well-integrated frontend experiences supporting key user journeys
- Increased team velocity through effective use of AI-assisted development
- High-quality, maintainable code with strong test coverage
- Flexible / Remote
- Minimal travel (0-10%)
Vacancy posted 2 days ago
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