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.Net/ (T-)SQL Developer for Finance/Billing/Controlling Systems - 90% REMOTE

Original title: .Net/ (T-)SQL Entwickler für Finanz-/Abrechnungs-/Controlling-Systeme - (m/w/d) - 90% REMOTE

iSAX Consulting GmbH · Frankfurt a.M., Deutschland, Germany · Hybrid · Senior

  • Frankfurt a.M., Deutschland, Germany · Hybrid
  • 8 Monate
  • German

Indexed (today) · refreshed constantly

Start
2026-12
Duration
8 Monate
Work mode
Hybrid
Contract
Freelance / B2B
Seniority
Senior
Reference
3068634

Required skills

Nice to have:System IntegrationInterface DevelopmentDatabase Performance OptimizationSoftware Architecture

Languages: German

Job description

We are seeking a .Net/ (T-)SQL Developer with extensive experience in financial, billing, or controlling systems to join a project starting in December 2026. The role is full-time with a duration of at least 8 months and is 90% remote.

Project overview

.Net/ (T-)SQL Developer for Finance/Billing/Controlling Systems

Responsibilities

  • Writing clean, efficient, and fully documented code in accordance with customer software development practices and standards
  • Participation in the planning, design, and implementation of the software project
  • Testing and debugging the software to ensure it meets specified quality standards
  • Participation in relevant technical meetings and providing regular information updates
  • Participation in code reviews and providing constructive feedback to other developers

Requirements

Do you have the required knowledge? Then we look forward to your application!

Please include information on your exact availability, CV, and your all-in hourly rate.

Thank you in advance.

Reference number: 13087

  • More than 5 years of extensive and current knowledge in programming with Microsoft .Net
  • More than 5 years of extensive and current knowledge in development with Microsoft SQL Server and T-SQL
  • Experience in designing data models and database architectures (5 project references)
  • More than 3 years of extensive and current knowledge in developing web applications with ASP.net
  • Experience in developing or further developing financial, billing, or controlling systems (5 project references)
  • More than 5 years of experience as a software developer at a railway transport company (EVU)
  • More than 3 years of experience with interface development and system integration
  • Participation in projects with a duration of at least 12 months (3 project references)
  • Knowledge of software architecture (3 project references)
  • Experience in database performance optimization (3 project references)

Project details

90% Remote - 10% Frankfurt a.M.

December 2026

8 project months ++ plus option for extension

Utilization: Full-time

Project Language: German

  • Start: 2026-12
  • Duration: 8 Monate
  • Remote: hybrid
  • Location: Frankfurt a.M., Deutschland, DE
  • Languages: German

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