Job Description & Details
With digital transformation accelerating, seasoned .NET developers are in high demand to build robust enterprise solutions. This Senior Dot Net Developer role in Lansing offers a hybrid schedule and the chance to work with both legacy .NET Framework and cutting‑edge .NET Core/8 technologies. Joining this team provides a platform to showcase your 9+ years of expertise while driving critical data integrations with SQL Server and SSIS.
Job Summary
We are seeking a Senior .NET Developer to design, develop, and maintain enterprise‑grade applications using C# and the .NET ecosystem (Framework 4.8, .NET Core, .NET 8/10). The role involves deep SQL Server work, including SSIS package creation, complex queries, stored procedures, and performance tuning. The candidate will work onsite two days a week in Lansing and collaborate virtually with the broader development team.
Top 3 Critical Skills Table
| Skill | Why it's critical | Mastery Level |
|---|---|---|
| .NET Development (C#, .NET Framework & .NET Core) | Core language and platform for building all application layers | Senior |
| SQL Server & SSIS | Enables data integration, ETL, and high‑performance data access essential for enterprise apps | Senior |
| Modern .NET Versions (e.g., .NET 8/10) | Future‑proofs solutions and leverages performance improvements | Senior |
Interview Preparation
- Explain the differences between .NET Framework 4.8 and .NET 8/10.
What the interviewer is looking for: Understanding of runtime changes, cross‑platform support, performance gains, and migration considerations. - Describe how you would design an SSIS package to handle incremental data loads.
What the interviewer is looking for: Knowledge of Change Data Capture, package configurations, error handling, and performance optimization. - Walk through a complex stored procedure you wrote to improve query performance.
What the interviewer is looking for: Ability to use indexing, execution plans, set‑based operations, and troubleshooting techniques. - How do you manage dependency injection and service lifetimes in a large .NET Core application?
What the interviewer is looking for: Familiarity with built‑in DI container, scoped vs. singleton services, and best practices for testability. - What strategies do you use for migrating a legacy .NET Framework app to .NET Core/8?
What the interviewer is looking for: Planning steps, compatibility assessment, code refactoring, and handling third‑party libraries.
Resume Optimization
- Senior .NET Developer
- C#
- .NET Framework 4.8
- .NET Core / .NET 8
- SQL Server 2019
- SSIS
- Stored Procedures
- Performance Optimization
- Enterprise Application Development
- Hybrid On‑site/Remote
Application Strategy
When reaching out to the recruiter, send a concise email that opens with a friendly greeting, attaches your updated resume, and clearly highlights your top relevant skills. Make sure to mention related skills you possess, such as C#/.NET development, SQL Server/SSIS expertise, and experience with modern .NET versions. Reference a recent project where you delivered enterprise‑scale functionality or optimized data pipelines, and explain how those achievements align with the responsibilities in this role.
Career Roadmap
| Current Role | Typical Experience | Core Focus | Next Position |
|---|---|---|---|
| Senior .NET Developer | 8‑10 years | Enterprise app architecture, performance tuning, data integration | Lead .NET Engineer / Technical Architect |