Engineering \& Development \| Middle Middle Colombia El Salvador Brazil \| Colombia El Salvador Brazil \| Remote October 10, 2025 ### **About the company** First Line Software works with some of the world's top businesses and organisations in industries like healthcare, real estate, *data engineering*, warehouse automation, retail digitalisation, mobile app development, and e\-commerce. Our projects are as varied as our people, and our people are as talented as they come. We prefer working as a transparent and supportive team, who shares our knowledge as well as our success. Let's see what we can create together! ‍ ### **The project and your role** We are seeking a versatile and proactive **.NET Developer** to join our team, focusing on high\-impact projects within **complex, mission critical enterprise systems**. You will primarily contribute to two critical software initiatives: * **Legacy Automation Platform:** Maintenance and extension of a high volume document workflow system running on **.NET Framework 4\.8**, built on a COTS solution. * **Modern Forms Portal:** Greenfield CRUD web application development running on **.NET 8** for managing a large, user friendly system of enterprise forms. The ideal candidate will balance supporting the immediate needs of the legacy system with driving the forward development of the modern application. #### **Key Responsibilities** * Lead the development and maintenance of the **Modern Forms Management Portal** backend (.NET 8\). * Actively participate in the planning, design, and initial stages of upcoming .NET projects. * Contribute to the implementation of new features and provide essential support for the legacy document automation platform. * Collaborate with cross\-functional teams to define requirements, estimate tasks, and ensure timely delivery. * *Optional:* Support and extend the development infrastructure within **Azure** environments. * *Optional:* Development and maintenance of the existing **Angular frontend**, as well as development of the frontend for upcoming .NET projects. ‍ ### **Your skills** **Essential Qualifications:** * Proven experience in building and maintaining modern C\# applications, specifically **.NET 8**. * Strong expertise in database development, querying, and schema design using **SQL Server \& EF (Entity Framework)**. * Proficiency in version control and collaborative development workflows using **Git**. **Desired Skills \& Knowledge (Nice to Have):** * Experience with **.NET Framework 4\.8**, ASP.NET MVC, ASPX, and troubleshooting older systems (Legacy .NET). * Hands\-on experience with **Angular**, JavaScript (JS), and jQuery (Frontend Technologies). * Familiarity with **Azure** cloud services and **IIS** web server configuration/management (DevOps \& Infrastructure). ‍ ### **What we can offer** **The FLS difference** * Our modern stack projects are the right mix of exciting and challenging * Gain access to our diverse range of **training programs**, courses, and certifications; * Choose your work style \- **remote, on\-site or hybrid** in one of our stunning offices. We offer the **freedom of flexible working hours**. * Enhance your language skills with our corporate English classes * Work from anywhere and explore the world with our Workation program ### **Language Proficiency** No items found. Our Hiring Process**Getting started with us** --------------------------- Here's what you can expect when you send us your application### **Step 0** ### **Tech Talent Hunt** Be scouted or apply for your role### **Step 1** ### **Meeting \& Connecting** Our first step to building lasting relationships ### **Step 2** ### **Uncovering Potential** Your HR interview ### **Step 3** ### **The Code Challenge or Technical Interview** It's time to show what you can do best! ### **Step 4** ### **Client’s Interview** Demonstrating expertise to our future partners ### **Final** ### **The Last Piece of the Puzzle** Job offer to finalize our tech team **Join our team of innovative thinkers** ======================================== **Let’s talk!** --------------- Have any questions? Fill out the form and our team will be in touch!