Full stack software engineer (react/.net)

We are Builders FirstSource, America’s largest supplier of building materials, value-added components and building services to the professional market. You’ll feel proud of the work you do here every day to transform the future of home building and help make the dream of home ownership more achievable. At BFS, we believe building a successful career is not solely defined by a degree. Your experience, skills, and passion are just as important, if not more so. As such, we are committed to creating a diverse and inclusive workplace that welcomes candidates from all backgrounds and experience levels.

PURPOSE

The Senior Full Stack Engineer will play a key role in designing, developing, and supporting enterprise applications that enable critical business capabilities across Builders FirstSource. This position participates in all phases of the Software Development Life Cycle (SDLC), including solution design, development, testing, deployment, monitoring, and ongoing support. The role serves as a senior technical contributor, providing architecture guidance, mentoring engineers, promoting engineering best practices, and delivering scalable, secure, and maintainable software solutions.

Primary technologies include .NET / ASP.NET Core, React, REST APIs, Azure cloud services, SQL Server, and modern DevOps practices, with strategic adoption of Next.js and modern front-end architecture patterns.

ESSENTIAL DUTIES AND RESPONSIBILITIES

• Design, develop, test, deploy, and support enterprise-scale web applications and services.
• Build and maintain full-stack solutions using .NET, ASP.NET Core, React, SQL Server, and Azure cloud technologies.
• Lead technical design and architectural decisions for complex features and initiatives.
• Partner with Product Managers, Business Analysts, Architects, UX Designers, QA Engineers, and business stakeholders to deliver business value.
• Analyze business requirements and translate them into scalable technical solutions.
• Develop and maintain RESTful APIs, service integrations, and distributed application components.
• Create reusable, maintainable, and high-quality front-end components and user experiences.
• Implement automated testing strategies, code quality standards, and secure coding practices.
• Perform code reviews and provide technical mentorship to engineers across the team.
• Identify and resolve performance, reliability, scalability, and security concerns.
• Contribute to cloud-native application development and modernization initiatives.
• Participate in CI/CD implementation, deployment automation, and DevOps best practices.
• Support application monitoring, observability, troubleshooting, and production issue resolution.
• Collaborate with cross-functional teams to improve software engineering standards, development processes, and Agile delivery practices.
• Evaluate emerging technologies and recommend solutions that improve efficiency, maintainability, and business outcomes.
• Contribute to the adoption of Next.js and modern front-end architectural approaches as part of the platform roadmap.

SUPERVISORY RESPONSIBILITIES

This job has no direct supervisory responsibilities. The position provides technical leadership, mentoring, and guidance through influence and expertise.

MINIMUM REQUIREMENTS

To perform this job successfully, an individual must be able to perform each essential duty satisfactorily.

• Bachelor’s degree from an accredited college/university or equivalent experience.
• 7+ years of professional software engineering experience.
• Extensive experience developing full-stack applications using C# and .NET technologies.
• Strong experience with ASP.NET Core and REST API development.
• Strong experience building modern single-page applications using React.
• Understanding of Next.js concepts and modern front-end development patterns preferred.
• Strong understanding of object-oriented design principles and software architecture.
• Experience implementing design patterns, dependency injection, and scalable application architectures.
• Strong SQL Server experience including T-SQL development, performance tuning, stored procedures, views, and indexing strategies.
• Experience with Azure cloud services and cloud-native application development.
• Experience with source control systems such as Git.
• Familiarity with Azure DevOps, CI/CD pipelines, and Agile development practices.
• Experience with automated testing frameworks and quality assurance practices.
• Knowledge of application security principles and remediation of vulnerabilities.
• Experience with container technologies, microservices, and distributed systems is preferred.
• Strong analytical, problem-solving, communication, and collaboration skills.

COMPETENCIES

• Evaluates Problems: Analyzes complex technical and business challenges and develops effective solutions.
• Technical Communication and Presentation: Clearly communicates technical concepts to both technical and non-technical audiences.
• Adjusting and Driving Change: Embraces innovation and drives continuous improvement.
• Focuses on Customers: Develops solutions that improve customer and business outcomes.
• Demonstrates Business Acumen: Understands how technology decisions support business objectives.
• Agile Best Practices: Applies Agile principles and engineering excellence throughout the delivery lifecycle.
• Bias for Action: Demonstrates ownership, urgency, and accountability.
• Technical Leadership: Influences engineering direction through expertise, collaboration, mentoring, and code quality.
• Continuous Learning: Actively evaluates emerging technologies and expands technical knowledge.

BFS COMPETENCIES

• Business and Financial Acumen
• Results Driven
• Strategic Thinking and Decision Making
• Servant Leadership
• Emotional Intelligence
• Develops and Leads Others through mentoring and knowledge sharing
• Growth Mindset
• Innovation
• Integrity

WORK ENVIRONMENT / PHYSICAL ACTIVITY

The physical demands described here are representative of those that must be met by an employee to successfully perform the essential functions of this job. Reasonable accommodations may be made to enable individuals with disabilities to perform the essential functions.

Subject to both typical office environment and outside locations with temperature and weather variations.

Must be able to lift and carry up to 25 pounds.

Occasional travel may be required.

This position was posted on July 24, 2026 and we anticipate it will be open for a minimum of five days, though it may be open for a longer period. We encourage your prompt application.

Successful, innovative, and fulfilling careers are built here, and your professional development is a high priority. We invest in your future through the latest training, tools, and technologies. Highly collaborative, we work together to solve problems and find better ways to continually grow our business and careers every day. You’ll be empowered to try new things, gain new experiences, and build a career with unlimited horizons. The scale and depth of resources that being the #1 building materials distributor in the nation provides a variety of opportunities for you to explore – all in a friendly, people-first environment. Join us to be more, do more, and build more, together at BFS.

In addition to the base wage listed, this position is also eligible to earn an annual bonus subject to changes in plan design and documents and in accordance with applicable law. Eligibility and the amount of the bonus varies based on overall company success, thresholds met and other terms and conditions of the Company’s active bonus policy for the respective year.

At Builders FirstSource, we offer competitive, affordable benefits designed to make life better for you and the people you love. Our goal is simple — provide great plans that help you and your family to live happier, healthier and more secure lives. This role is eligible for medical, dental, vision, and disability insurance plans, 401(k) retirement savings plan, PTO (including paid sick time), and 8 paid holidays per year (for salaried and hourly team members). Details about Builders FirstSource’s benefits offerings are available here www.bldrbenefits.com.

Builders FirstSource is an Equal Opportunity/Affirmative Action Employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, national origin, protected veteran status or status as an individual with a disability.

In compliance with the ADA Amendments Act (ADAAA), if you have a disability and would like to request an accommodation in order to apply for a position with Builders FirstSource, please call (214) 765-3990 or email: ADA.Accommodation@bldr.com. Please do not send resumes to this email address - it is intended only to request an accommodation in submitting an application for a job opening.

If there's legally required pay transparency information missing from our job posting, it's not intentional and we'd like to know. To let us know, please email the job title and location to JobPostings@bldr.com. Please do not send resumes to this email address - it is intended only be used to provide a notice of non-compliance.

Please note that due to the volume of applications received, we are unable to respond to individual inquiries about the status of your application.