Senior Software Engineer (.NET)

We are seeking a strong Software Engineer with 5 to 15 years of experience building modern software applications in the Microsoft software engineering ecosystem. This role is for an engineer who combines solid technical ability with good judgment, strong communication, analytical thinking, and a team-first mindset. The ideal candidate has hands-on experience with .NET 8 and above, object-oriented design, SOLID principles, API development, database design, and distributed systems. This person should be comfortable designing and building scalable, maintainable software, collaborating across teams, and using modern AI-assisted development tools to improve productivity and quality. This is more than a coding role. We are looking for engineers who can contribute to technical discussions, solve problems thoughtfully, communicate clearly, and help strengthen engineering standards across the team.

Location: LATAM 100% Remote. Working hours are based on the US Central-Eastern Time Zone.

About Us:

Abstra is a fast-growing, Nearshore Tech Talent services company, providing top Latin American tech talent to U.S. companies and beyond. Founded by U.S.-bred engineers with over 15 years of experience, Abstra specializes in sourcing skilled professionals across a wide range of technologies to meet our clients’ needs, driving innovation and efficiency.

Key Responsibilities

• Design, develop, and maintain modern applications and services using C# and .NET 8+.
• Build and enhance REST APIs and backend services with a focus on scalability, maintainability, and performance.
• Contribute to the design and implementation of distributed systems and service-oriented architectures.
• Apply SOLID principles and sound object-oriented design practices to produce clean, extensible, and testable code.
• Work with relational and non-relational databases, including schema design, query tuning, and efficient data access patterns.
• Collaborate with engineers, architects, and business stakeholders to translate requirements into practical technical solutions.
• Participate in code reviews, design discussions, and technical problem-solving to improve code quality and team effectiveness.
• Use modern AI development tools responsibly to accelerate delivery and improve engineering workflows.
• Contribute to cloud-based application development (AWS experience is preferred but not required).
• Troubleshoot production issues, identify root causes, and implement durable solutions.
• Document technical designs, architectural decisions, and implementation details as needed.
• Continuously learn and adapt to new tools, frameworks, and practices.

Required Qualifications

• 5 to 15 years of professional experience as a software developer.
• Strong experience with C# and .NET 8 or above.
• Strong written and verbal communication skills.
• Strong understanding of object-oriented programming principles.
• Strong understanding and practical application of SOLID principles.
• Good knowledge of AI tools and the ability to use them effectively to accelerate development.
• Experience building REST APIs and backend services.
• Experience developing distributed systems, microservices, or event-driven systems.
• Strong database skills across both relational and non-relational technologies.
• Good analytical and problem-solving skills.
• Strong teamwork mentality and ability to collaborate effectively with others.
• Familiarity with AI tools for software development.
• Familiarity with Microsoft technologies and development platforms.
• Enthusiasm for learning new technologies and growing as an engineer.
• Bachelor’s degree from an accredited four-year college or university in Computer Science, Software Engineering, Computer Engineering, or a related technical field.

Preferred Qualifications

• Experience with  AWS, Azure or GCP is a plus!
• Experience with ASP.NET Core and modern API development patterns.
• Experience with Docker and container-based development.
• Experience with messaging, asynchronous processing, or event-driven architectures.
• Experience with observability, logging, and monitoring practices.
• Experience modernizing legacy systems.
• Familiarity with CI/CD pipelines and modern DevOps practices.
• Experience working in agile delivery environments.

What We Offer:

• Flexible working hours and remote work options.
• Opportunities for professional growth and development.
• A collaborative and inclusive work environment.
• The chance to work on impactful projects with a talented team.
• Excellent compensation in USD.
• Hardware and software setup (mandatory).