Software Development Engineer - .Net or RoR

What You'll Do

Avalara is accelerating delivery of AI-enabled capabilities across our compliance platform to improve customer experience, increase engineering velocity, and scale global operations. As a Senior Software Engineer, you will build reliable, scalable systems that support global transaction growth and help teams use artificial intelligence in practical, secure, and measurable ways.

You'll be part of the team developing Avalara1099 (formerly Track1099), a very popular product line built with Ruby on Rails and a Postgres database. This product's next journey includes expanding its APIs and UI using C# and React. You will join a 15-person Scrum team and report to a Manager of Software Engineering, working remotely, anywhere in Brazil.

In this role, you will write reusable, testable, and efficient code using test-driven development, collaborate with engineering, product, and business teams to ship new features, and address non-functional requirements like security, performance, and load. You will also be expected to raise engineering standards through ownership, technical judgment, mentoring, and the responsible use of AI — we expect every engineer, manager, and leader to actively leverage AI to enhance productivity, quality, innovation, and customer value, as AI is embedded in our workflows, decision-making, and products.

This position is also open to people with disabilities (PcD), in accordance with Law No. 8.213/91
(Esta vaga também é destinada a pessoas com deficiência (PcD), conforme Lei nº 8.213/91).

*Only CVs in EN will be considered*

#LI-remote

What Your Responsibilities Will Be

• Exposure of a software development role, shipping complex applications to large scale production environments. 

• Basic Understanding of Relational Databases (Postgres). 

• Good object-oriented programming technique and debugging skills. 

• Experience with data structures and algorithm.

• Experience working in an Agile team. 

• Someone who loves to write optimized code.

• Experience approaching a problem from different angles, analyzing pros and cons of different solutions.

• Motivated, persistent and "Never Give Up" attitude.

• Experience with innovation and adaptability to a lean start-up culture.

• Creativity, enthusiasm, and flexibility.

What You’ll Need To Be Successful

• Experience communicating updates and resolutions to customers and other partners. 

• Bachelor's degree or higher in computer science or engineering is required.

• 8+ years of experience in Ruby on Rails or C#.

• Experience publishing and consuming Rest APIs.

• Knowledge of building CI/CD pipelines (GitLab, Terraform).

• Familiar with containerization technologies (Docker, Kubernetes, ECS).

• Experience to Cloud technologies (AWS, Azure, Google Cloud).

• Experience with Docker containers and Kubernetes (K8s), Docker Swarm as an orchestrator platform.

• Experience securing web applications.

• Understanding of scalable systems and low latency APIs.

• Understanding of engineering for available and fault tolerant systems.

• It is a position with international interaction teams, only resumes sent in English will be considered.

• Raise standards for technical troubleshooting, root cause analysis, and resolution quality.

• Improve team capability through mentorship, knowledge sharing, and clear documentation.

• Reduce repeat issues by driving systemic fixes and improving diagnostic approaches.

• Strengthen cross-functional execution by improving clarity and collaboration with Engineering and Product.

• Identify opportunities to improve processes, tools, and workflows that increase scalability and efficiency.

• Leave systems, documentation, and team capability stronger than they found them.

• Use AI tools to accelerate development, root cause analysis, summarize case histories, and generate high-quality knowledge base content.

• Identify automation opportunities that reduce manual troubleshooting effort.

• Quantify and demonstrate measurable improvements enabled by AI (e.g., reduced resolution time, improved documentation quality).

• Share AI best practices with peers and contribute to raising AI capability across the team.

Avalara is an AI-first Company

AI is embedded in our workflows, decision-making, and products.  Success here requires embracing AI as an essential capability.

• You’ll bring experience using AI and AI-related technologies, ready to thrive here.

• You’ll apply AI every day to business challenges - improving efficiency, contributing solutions, and driving results for your team, our company, and our customers.

• You’ll grow with AI by staying curious about new trends and best practices, and by sharing what you learn so others can benefit too.

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.