Role title: Senior C# Developer – Internal Tools, Data & Automation

Location: India (Remote)

Work Hours: 2:00 PM – 11:00 PM IST (UK Shift)

ET Overlap: Minimum 4 hours daily

Engagement: Contractor – Project Based (4+ months)

Need Immediate Joiners

We are looking for a Senior C# Developer with strong expertise in C#, .NET, SQL Server, data engineering, automation, and Healthcare domain experience.

MANDATORY REQUIREMENTS

✅ 5+ years of C# / .NET development experience

✅ 5+ years of hands-on MS SQL Server development

✅ Strong expertise in Advanced T-SQL, Stored Procedures, Functions, CTEs & Window Functions

✅ Solid experience with SQL Performance Tuning, Execution Plans, Indexing, Blocking & Deadlocks

✅ Experience with ETL / Data Integration – SSIS, Azure Data Factory or equivalent

✅ Experience with Relational Data Modelling and large, multi-source datasets

✅ Experience with Data Cleansing, Validation & Reconciliation

✅ Experience building C# tools, Web APIs, Services, Azure Functions or Scheduled Jobs





✅ Strong Code Review experience

✅ Experience owning solutions from requirements through production

✅ Strong Git experience

✅ Excellent English communication skills

✅ Healthcare domain experience is MANDATORY

✅ Hands-on production experience with Claude Code is MANDATORY

CLAUDE CODE – HARD REQUIREMENT

Candidates must have real-world production experience using Claude Code for:

• Feature planning

• Implementation

• Debugging

• Test generation

• Code review

• PR preparation

GitHub Copilot, Cursor, or other autocomplete-style AI tools alone will NOT be considered equivalent.

Good to Have

• Azure Functions / Blob Storage / Application Insights

• Windows Services & Scheduled Tasks

• SSRS / Power BI

• REST APIs – JSON/XML

• DACPAC / Flyway / EF Migrations

• Serverless Architecture

• Database Change Management

📌 Senior C# Developer – Internal Tools, Data (Kolkata)
🏢 e-Solutions
📍 Kolkata