Simpli.fi
Overview
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.NET Developer
role at
Simpli.fi Simpli.fi is the leading advertising success platform, providing programmatic advertising solutions and workflow software to over 2,000 media teams, agencies, and brands. Simpli.fi empowers advertisers to maximize relevance in what they do, in the connections made, and in the results delivered across CTV, mobile, display, and other media types. Our platform delivers performance on budgets of all sizes, executing over 140,000 campaigns for 30,000 advertisers in a typical month. Simpli.fi’s investors include leading private equity firms Blackstone and GTCR.
What We’re Looking For Simpli.fi is looking for a
.NET Developer
to join our team and help us achieve higher levels of quality and customer satisfaction through pragmatic and thoughtful consideration of technical hurdles and product functionality. You’ll focus on building new products, legacy systems rewrites and sunsets, and improving quality via automated test coverage. We’re looking for engineers who not only bring strong technical skills, but also demonstrate emotional intelligence, collaboration, and a commitment to contributing positively to our company culture.
What You’ll Be Doing
Take responsibility for product quality and results. Engineers see software features through to delivery to the customer.
Build and enhance features with C#, .NET, Entity Framework, Vue 3, TypeScript, and SQL Server.
Own the data component of the product, working with other Developers, QA, and Product Managers to arrive at performant solutions which are maintainable and designed with care for the user.
Deliver seamless user experiences with NUXT, Element Plus, and other modern UI libraries.
Write and maintain unit/integration tests with xUnit, applying TDD practices where possible.
Incrementally modernize legacy systems by identifying seams in VB.NET code and improving test coverage and logging. This is actively being rewritten in C#.
Participate in decomposition, sprint planning, code reviews, and retrospectives to ensure high-quality, maintainable software.
Collaborate closely across teams—including Product, QA, UX/UI, Documentation, and Infrastructure—to deliver solutions end-to-end.
You’ll Have The Following To Succeed In This Role
3–6 years of professional software development experience.
Strong knowledge of C# and the .NET ecosystem.
Frontend expertise with Vue 3, TypeScript, JavaScript, and modern UI frameworks.
Solid SQL Server experience (queries, stored procedures, performance optimization).
Familiarity with xUnit (or similar testing frameworks) and a TDD mindset.
Ability to navigate and improve legacy codebases while contributing to modernization.
A Team-First Mindset—You elevate others, collaborate openly, and believe in shared success. You understand the importance of building relationships both on and outside the team.
A Growth Mindset—You are curious, adaptable, and willing to learn from both successes and failures.
A Quality Mindset—You take responsibility for product quality and results. Our engineers see software features through to delivery to the customer.
Pragmatism and Flexibility—You understand there is often more than one right way to solve a problem.
Working With Us Has Its Rewards Awesome company environment and benefits with a great management team. Competitive pay based on experience, 17 PTO days, 401K match, long-term incentive plan and employer sponsored healthcare options. Hybrid work schedule. Company is focused on developing and mentoring employees.
Candidates must be authorized to work in the United States. We are unable to provide visa sponsorship at this time.
Job locations and additional postings: Irving, TX; Fort Worth, TX; Dallas-Fort Worth Metroplex. Salary ranges shown are examples for context.
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Join to apply for the
.NET Developer
role at
Simpli.fi Simpli.fi is the leading advertising success platform, providing programmatic advertising solutions and workflow software to over 2,000 media teams, agencies, and brands. Simpli.fi empowers advertisers to maximize relevance in what they do, in the connections made, and in the results delivered across CTV, mobile, display, and other media types. Our platform delivers performance on budgets of all sizes, executing over 140,000 campaigns for 30,000 advertisers in a typical month. Simpli.fi’s investors include leading private equity firms Blackstone and GTCR.
What We’re Looking For Simpli.fi is looking for a
.NET Developer
to join our team and help us achieve higher levels of quality and customer satisfaction through pragmatic and thoughtful consideration of technical hurdles and product functionality. You’ll focus on building new products, legacy systems rewrites and sunsets, and improving quality via automated test coverage. We’re looking for engineers who not only bring strong technical skills, but also demonstrate emotional intelligence, collaboration, and a commitment to contributing positively to our company culture.
What You’ll Be Doing
Take responsibility for product quality and results. Engineers see software features through to delivery to the customer.
Build and enhance features with C#, .NET, Entity Framework, Vue 3, TypeScript, and SQL Server.
Own the data component of the product, working with other Developers, QA, and Product Managers to arrive at performant solutions which are maintainable and designed with care for the user.
Deliver seamless user experiences with NUXT, Element Plus, and other modern UI libraries.
Write and maintain unit/integration tests with xUnit, applying TDD practices where possible.
Incrementally modernize legacy systems by identifying seams in VB.NET code and improving test coverage and logging. This is actively being rewritten in C#.
Participate in decomposition, sprint planning, code reviews, and retrospectives to ensure high-quality, maintainable software.
Collaborate closely across teams—including Product, QA, UX/UI, Documentation, and Infrastructure—to deliver solutions end-to-end.
You’ll Have The Following To Succeed In This Role
3–6 years of professional software development experience.
Strong knowledge of C# and the .NET ecosystem.
Frontend expertise with Vue 3, TypeScript, JavaScript, and modern UI frameworks.
Solid SQL Server experience (queries, stored procedures, performance optimization).
Familiarity with xUnit (or similar testing frameworks) and a TDD mindset.
Ability to navigate and improve legacy codebases while contributing to modernization.
A Team-First Mindset—You elevate others, collaborate openly, and believe in shared success. You understand the importance of building relationships both on and outside the team.
A Growth Mindset—You are curious, adaptable, and willing to learn from both successes and failures.
A Quality Mindset—You take responsibility for product quality and results. Our engineers see software features through to delivery to the customer.
Pragmatism and Flexibility—You understand there is often more than one right way to solve a problem.
Working With Us Has Its Rewards Awesome company environment and benefits with a great management team. Competitive pay based on experience, 17 PTO days, 401K match, long-term incentive plan and employer sponsored healthcare options. Hybrid work schedule. Company is focused on developing and mentoring employees.
Candidates must be authorized to work in the United States. We are unable to provide visa sponsorship at this time.
Job locations and additional postings: Irving, TX; Fort Worth, TX; Dallas-Fort Worth Metroplex. Salary ranges shown are examples for context.
#J-18808-Ljbffr