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Software Development Engineer

Avalara

Avalara

Software Engineering
Durham, NC, USA · Mangum, OK, USA · Durham, NC, USA · United States
Posted on Aug 5, 2025

Job Description

What You'll Do

You'll join the AvaTax engineering team responsible for a globally distributed, high-throughput tax compliance platform that processes billions of transactions across multi-cloud infrastructure. Our systems are performance-critical, fault-tolerant, and designed to scale — supporting complex tax rules and content from over 190 countries.

We're building the future of tax automation where AI is not a side project — it's at the core of everything we deliver, from intelligent APIs to self-healing systems. You'll help architect, scale, and improve services that must be fast and integrated with AI-powered capabilities. You will report to a Senior Manager in Software Engineering.

This is a hybrid opportunity out of the Durham, NC area. #LI-Hybrid.

This role is not eligible for visa sponsorship.


What Your Responsibilities Will Be

  • You will develop high-scale backend services that power our globally distributed AvaTax platform, processing millions of transactions daily across a multi-cloud architecture.
  • AI is embedded in everything we build — from intelligent decisioning and anomaly detection to content enrichment and developer workflows — and you'll integrate AI-first thinking into all aspects of your work. Using C#, .NET, Kubernetes, SQL, and modern DevOps practices, you'll contribute to the next generation of performant and observable services.
  • You'll work with engineers, product managers, and data scientists to ship impactful features, improve existing systems, and evolve a platform built for scale and intelligence.

What You'll Need to be Successful

  • Minimum of 3 years of experience developing backend software using C# or similar object-oriented language
  • Hands-on experience with REST APIs, microservices, and relational databases such as SQL Server or PostgreSQL
  • Exposure to AI/ML technologies or projects, including prompt engineering, data processing, or integrating LLM APIs
  • Experience working with CI/CD pipelines and version control tools like GitLab or GitHub
  • You enjoy working on scoped tasks while collaborating with team members across departments
  • You excel in documenting solutions and participating in team discussions

How We'll Take Care of You

Total Rewards

In addition to a great compensation package, paid time off, and paid parental leave, many Avalara employees are eligible for bonuses.

Health & Wellness
Benefits vary by location but generally include private medical, life, and disability insurance.

Inclusive culture and diversity
Avalara strongly supports diversity, equity, and inclusion, and is committed to integrating them into our business practices and our organizational culture. We also have a total of 8 employee-run resource groups, each with senior leadership and exec sponsorship.


What You Need To Know About Avalara

We’re defining the relationship between tax and tech.

We’ve already built an industry-leading cloud compliance platform, processing over 54 billion customer API calls and over 6.6 million tax returns a year. Our growth is real - we're a billion dollar business - and we’re not slowing down until we’ve achieved our mission - to be part of every transaction in the world.

We’re bright, innovative, and disruptive, like the orange we love to wear. It captures our quirky spirit and optimistic mindset. It shows off the culture we’ve designed, that empowers our people to win. We’ve been different from day one. Join us, and your career will be too.

We’re An Equal Opportunity Employer

Supporting diversity and inclusion is a cornerstone of our company — we don’t want people to fit into our culture, but to enrich it. All qualified candidates will receive consideration for employment without regard to race, color, creed, religion, age, gender, national orientation, disability, sexual orientation, US Veteran status, or any other factor protected by law. If you require any reasonable adjustments during the recruitment process, please let us know.