Full Stack Engineer

**Before you apply** * Remote from Brazil * CVs must be submitted in English * Fluent spoken English is required **About** We are looking for a Senior Full Stack Software Engineer to join a high\-performing software development team building and evolving a commercial SaaS platform. This is not a ticket\-taker role. You will operate as a key contributor in an Agile environment, working across the full stack and helping shape architecture, quality standards, and technical direction. **What We're Looking For** * 5\+ years of experience building and maintaining commercial SaaS applications * Strong experience with object\-oriented programming and core computer science fundamentals * Deep understanding of data structures * Solid knowledge of modern software design patterns * Strong grasp of SOLID principles * Experience working within Agile environments (Scrum, Kanban) * Excellent debugging and problem\-solving abilities * Experience collaborating with UX designers in a user\-centric development process * Strong communication skills in English * Ability to work from functional and technical specifications **Advanced SQL expertise, including:** * Complex query writing * Schema design and architecture * Query optimisation * Performance tuning **Strong quality mindset, with hands\-on experience writing:** * Unit tests * Integration tests * End\-to\-end tests **What You'll Be Doing** * Contribute across the full lifecycle of a complex web application * Develop across the full stack: front end, back end, and database * Collaborate closely with Product to refine features, estimate effort, and shape the roadmap * Partner with DevOps on infrastructure planning and deployment strategies * Propose creative, scalable solutions to complex technical challenges * Take ownership of issue identification, root cause analysis, and resolution * Monitor system health and performance * Build scalable, high\-quality, maintainable software * Work within a highly efficient, globally distributed team **Core Tech Stack** * C\#.NET Framework * SQL Server * Entity Framework * Razor * TypeScript * jQuery **Nice to Have** * Experience with Kendo UI * Experience with Microsoft Identity * Experience with AWS or other cloud providers * Background in construction, project controls, or cost management * Certifications in technology, Agile, product management, or project management **What Techifide Offers** * Competitive compensation in USD. Reliable monthly payments made within the first days of each month. * 100% Remote * Work from anywhere in Brazil. We require 6 to 8 working hours overlapping with US time zones. * Modern Technology Environment * Work on meaningful challenges using a modern tech stack in a commercial SaaS product. * People First Culture * We care about long\-term partnerships. We support work\-life balance and provide real human support when you need it. **Community \& Engagement** * Access to virtual and in\-person workshops, team\-building activities, and community initiatives designed to keep you connected and growing. * If you're a senior engineer who enjoys ownership, quality, and building scalable SaaS systems that matter, we'd like to meet you.