• Support and enhance existing legacy applications built on .NET Framework 4.8 (MVC) while ensuring stability and performance. • Lead initiatives to port modules and functionalities from legacy frameworks to .NET 8+ , utilizing EF Core. • Write, analyze, and optimize complex T-SQL scripts, stored procedures, and triggers for performance in high-transaction environments. • Build responsive and user-friendly interfaces using Bootstrap 5 , utilizing jQuery for DOM manipulation in legacy views and modern vanilla JS/Blazor for new components. • Guide junior developers on best practices for both ORMs ( EF6 and EF Core ) and conduct code reviews to ensure clean, maintainable architecture.

• Design and develop scalable, distributed, server-side applications and microservices using Go • Build and optimize mission-critical backend software, with a strong focus on system programming, concurrency, and performance tuning • Design and implement robust peer-to-peer (P2P) communication systems (P2P experience is mandatory) • Contribute to or build systems using libp2p or similar P2P frameworks • Ensure cross-platform compatibility and consistent application behavior across environments • Collaborate within an Agile/Scrum team, contributing to backlog refinement, risk identification, and dependency management • Produce clean, maintainable, and reusable code, following strong engineering standards • Optimize backend systems for performance, reliability, security, and fault tolerance • Establish and enhance backend infrastructure, including deployment pipelines, observability, and monitoring tooling • Work across multi-cloud environments (AWS, Azure, GCP) and collaborate closely with infrastructure teams • Participate actively in the full application lifecycle, from design to production operations • Engage with product and design teams to deeply understand end-user and platform requirements • Conduct thorough code reviews, mentor other engineers, and raise overall backend engineering quality • Champion best engineering practices and a culture of high-quality software craftsmanship

• Design and develop scalable, distributed, server-side applications and microservices using Go. • Build and optimize mission-critical backend software, with a strong focus on system programming, concurrency, and performance tuning. • Design and implement robust peer-to-peer (P2P) communication systems (P2P experience is mandatory). • Contribute to or build systems using libp2p or similar P2P frameworks. • Ensure cross-platform compatibility and consistent application behavior across environments. • Collaborate within an Agile/Scrum team, contributing to backlog refinement, risk identification, and dependency management. • Produce clean, maintainable, and reusable code, following strong engineering standards. • Optimize backend systems for performance, reliability, security, and fault tolerance. • Establish and enhance backend infrastructure, including deployment pipelines, observability, and monitoring tooling. • Work across multi-cloud environments (AWS, Azure, GCP) and collaborate closely with infrastructure teams. • Participate actively in the full application lifecycle, from design to production operations. • Engage with product and design teams to deeply understand end-user and platform requirements. • Conduct thorough code reviews, mentor other engineers, and raise overall backend engineering quality. • Champion best engineering practices and a culture of high-quality software craftsmanship.

• Design and develop scalable, distributed, server-side applications and microservices using Go. • Build and optimize mission-critical backend software, with a strong focus on system programming, concurrency, and performance tuning. • Design and implement robust peer-to-peer (P2P) communication systems (P2P experience is mandatory). • Contribute to or build systems using libp2p or similar P2P frameworks. • Ensure cross-platform compatibility and consistent application behavior across environments. • Collaborate within an Agile/Scrum team, contributing to backlog refinement, risk identification, and dependency management. • Produce clean, maintainable, and reusable code, following strong engineering standards. • Optimize backend systems for performance, reliability, security, and fault tolerance. • Establish and enhance backend infrastructure, including deployment pipelines, observability, and monitoring tooling. • Work across multi-cloud environments (AWS, Azure, GCP) and collaborate closely with infrastructure teams. • Participate actively in the full application lifecycle, from design to production operations. • Engage with product and design teams to deeply understand end-user and platform requirements. • Conduct thorough code reviews, mentor other engineers, and raise overall backend engineering quality. • Champion best engineering practices and a culture of high-quality software craftsmanship.