Sr. Backend Developer at systemates – Richardson | Jobyssey

About Systemates Inc.

From our corporate offices in DFW, Systemates is not-so-quietly plotting the construction industry on a course to a more tech-focused future. Our award-winning software, Projectmates, contains all of the functionality needed to unite and streamline complex construction project management processes. Put simply, Projectmates users are more efficient, more cost-effective, and better prepared for the changing construction landscape.

Now, this is where you come in.

We're searching for people who thrive in a small, growth-focused environment. You need to be passionate about helping customers solve problems and focused on self-improvement. Our talented and diverse team is working to take Systemates to the next level.

Help us build something great.

About the Job

The Sr. Backend Developer is a senior individual contributor responsible for designing, building, and maintaining the server-side architecture that powers the Projectmates platform. You will own complex backend systems end-to-end — from database design and API development to performance optimization and cloud infrastructure — while serving as a technical mentor to other developers on the team. This position reports to the Development Manager.

What You'll Be Doing

Design and develop robust, scalable backend systems and RESTful APIs supporting the Projectmates web application
Own database architecture including stored procedures, views, triggers, functions, and schema design in Azure SQL
Lead performance tuning and optimization of backend services and database queries
Collaborate with frontend developers to define and implement API contracts that support a ReactJS-based UI
Participate actively in code reviews, enforcing best practices, security standards, and software craftsmanship
Investigate and resolve complex system faults, identifying root causes and implementing permanent fixes rather than workarounds
Contribute to architectural decisions — evaluating current system design and recommending improvements for scalability, reliability, and maintainability
Support third-party integrations and API connections with external platforms
Write comprehensive unit and integration tests and champion test-driven development practices
Mentor other developers through code reviews and technical guidance
Perform other duties and special projects as assigned

Desired Skills & Experience

5+ years of professional software development experience with a strong backend focus
Expert-level proficiency in C# and the Microsoft .NET technology stack (.NET Core, ASP.NET)
Deep experience with Azure SQL Server — query optimization, indexing strategies, and complex database object development
Proven experience designing and building RESTful APIs consumed by modern frontend frameworks
Solid understanding of Azure cloud services — including App Services, Azure DevOps, and related infrastructure
Experience with JavaScript and familiarity with ReactJS sufficient to collaborate effectively with frontend team members
Strong grasp of software architecture principles — separation of concerns, SOLID principles, design patterns
Experience with third-party API integrations a strong plus
Excellent problem-solving, communication, and collaboration skills
Bachelor's degree in computer science, Software Engineering, or related field preferred; equivalent experience considered

Where You'll Be Working

This is a hybrid full-time role based out of our Richardson, TX office. Tuesday & Thursday in office, Monday, Wednesday & Friday work from home.

EEO Statement

Systemates Inc. is committed to creating a diverse environment and is proud to be an equal opportunity employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, gender, gender identity or expression, sexual orientation, national origin, genetics, disability, age, or veteran status.

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