Summary: Trinetix seeks a skilled Full-Stack Developer to design and develop backend services, contribute across the stack, take ownership of technical decisions, and leverage modern tools in an autonomous environment. Highlights: 1. High degree of autonomy and ownership of technical decisions 2. Continuous learning and adaptation to new technologies 3. Opportunities for continuous learning and career growth **Trinetix** is looking for a skilled **Full\-Stack Developer**. **What You’ll Do** You will be part of a team driving new initiatives, often with evolving requirements and a high degree of autonomy. * Design and develop backend services and APIs using .NET (C\#) * Contribute across the stack when needed, collaborating on frontend solutions where required * Take ownership of technical decisions and solution design * Work in environments where requirements are not always fully defined from day one * Collaborate closely with stakeholders while maintaining a strong engineering perspective * Leverage modern tools (including AI\-assisted development tools) to improve productivity * Continuously learn and adapt to new technologies and project needs **Requirements** * Strong experience in .NET / C\# development * Experience building RESTful APIs * Solid understanding of software design principles (OOP, clean code, etc.) * Full\-stack experience OR strong backend profile with willingness to work across the stack * Ability to work independently and take ownership of tasks * Strong problem\-solving skills * Good communication skills (English required) **Nice\-to\-haves** * Experience with modern frontend frameworks (React, Angular, etc.) * Experience working in environments with evolving or undefined requirements * Familiarity with cloud platforms (Azure, AWS, or GCP) * Exposure to AI tools and modern development workflows * Understanding of microservices or distributed systems **Core Responsibilities** * Build and maintain RESTful APIs using .NET / ASP.NET Core * Design scalable and maintainable solutions with a strong focus on code quality * Work with relational databases and write efficient queries * Participate in architectural discussions and contribute to technical decisions * Ensure code is testable, maintainable, and well\-structured * Troubleshoot issues and improve system performance * Use AI\-assisted tools (e.g., Cursor, Claude, Copilot) as part of the development workflow **Expected Qualifications** * Take full ownership of complex project components Be responsible for delivering high\-quality work on time, making sure it fits the project’s goals and technical requirements. * Solve complex technical challenges and guide architectural choices Make sound technical decisions independently and contribute to discussions that shape how systems are designed and built. * Drive improvements in how the team works Introduce new tools, workflows, or practices that make development faster, cleaner, and more collaborative. **What we offer** * Continuous learning and career growth opportunities * Professional training and English/Spanish language classes * Comprehensive medical insurance * Mental health support * Specialized benefits program with compensation for fitness activities, hobbies, pet care, and more * Flexible working hours * Inclusive and supportive culture **About Us** Established in 2011, Trinetix is a dynamic tech service provider supporting enterprise clients around the world. Headquartered in Nashville, Tennessee, we have a global team of over 1,000 professionals and delivery centers across Europe, the United States, and Argentina. We partner with leading global brands, delivering innovative digital solutions across Fintech, Professional Services, Logistics, Healthcare, and Agriculture. Our operations are driven by a strong business vision, a people\-first culture, and a commitment to responsible growth. We actively give back to the community through various CSR activities and adhere to international principles for sustainable development and business ethics. To learn more about how we collect, process, and store your personal data, please review our Privacy Notice: https://www.trinetix.com/corporate\-policies/privacy\-notice **Requirements**