Senior Backend/Fullstack Developer

Quick Facts

• Role: Senior Backend/Fullstack Developer
• Focus: Large-scale enterprise application for municipalities managing waste collection and environmental services
• Tech stack: C# and .NET, ASP.NET, PostgreSQL, REST APIs

Description

You will develop and maintain a large-scale enterprise application, improve existing functionality, and tackle complex production issues. The role emphasizes refactoring for maintainability, performance optimization, and building backend services and REST APIs. You’ll also write well-tested code and contribute to architecture discussions within Scrum.

Responsibilities

• Develop and maintain an enterprise application built with C# and .NET
• Troubleshoot and resolve complex production issues across the platform
• Analyze existing solutions and improve maintainability through refactoring
• Improve application performance and optimize database queries
• Develop backend services and REST APIs
• Work with PostgreSQL using raw SQL and Entity Framework
• Participate in architecture discussions and technical decision-making
• Write clean, maintainable, and well-tested code
• Implement unit tests and integration tests
• Participate in Scrum ceremonies, refinement sessions, and technical discussions
• Contribute to continuous improvement initiatives across the development lifecycle
• Identify opportunities to leverage AI-assisted software development tools

Requirements

• 8+ years of professional software development experience
• Strong experience with C# and .NET (both .NET Framework and modern .NET)
• Solid understanding of enterprise backend development
• Extensive experience debugging complex production systems
• Experience working with legacy and monolithic applications
• Strong SQL skills, including writing, analyzing, and optimizing raw SQL queries
• Experience with PostgreSQL or other relational databases
• Experience using Entity Framework or similar ORM technologies
• Experience designing and consuming REST APIs
• Experience with Git, GitHub, and CI/CD pipelines
• Experience writing unit tests and integration tests
• Good understanding of Agile methodologies (Scrum)
• Ability to work independently and proactively
• Excellent English communication skills

Benefits

• Initial onboarding: in the first three months you will learn the RenoWeb platform, work independently on bug fixes, and deliver small tasks, with expectations of becoming largely autonomous by the end of onboarding.