Sr. Fullstack Engineer (.Net)

Pyyne
Buenos Aires Province, Brazil
Remote

Who this role is best for

Geared toward experienced .NET developers comfortable with client-side collaboration and agile processes, based in Brazil with a focus on SaaS solutions and global teamwork.

Best fit for

  • Experienced .NET developers with a track record of working in agile environments and cross-functional teams.
    — “collaborating effectively within dynamic Scrum teams to ensure organizational success”
  • Candidates who have worked on large-scale SaaS applications and can adapt to client-facing roles.
    — “expand our collaboration with one of our fastest growing North American SaaS clients”
  • Individuals capable of mentoring and supporting junior developers with strong technical fundamentals.
    — “Mentor and support junior and mid level developers on the team”

Things to consider

  • Fluent English is a non-negotiable requirement for daily global team collaboration.
    — “The only non-negotiable for us is fluent English, as you'll be collaborating daily with global teams.”
  • The role demands a strong understanding of both backend and frontend development practices.
    — “Develop, test, and deploy high-quality web applications and services using the .NET stack”

How to stand out

  • Emphasize your experience with .NET 8+ and .NET Framework 4.8 in your resume and interview.
    — “2+ years of experience with C#/.NET 8+”
  • Highlight your ability to manage stakeholder expectations and risks during project delivery.
    — “proactively manage risks, dependencies, and stakeholder expectations across the team”
  • Showcase your experience with SOLID principles and clean code practices in your portfolio or code samples.
    — “Write clean, scalable, and maintainable code following best practices and design patterns”
  • Demonstrate your experience with Azure and SQL Server through specific project examples.
    — “Experience with Azure cloud”
  • Include examples of technical documentation you've created for features or systems.
    — “Contribute to technical documentation for new and existing features”
Pace · Fast PacedCollaboration · HighAutonomy · MediumDecision Impact · Team

Derived from job-description analysis by Serendipath's career intelligence engine.

What success looks like

  • Developed and deployed high-quality web applications and services using the .NET stack
Typical background
5+ years of professional experience as a software engineer

Skills & requirements

Required

C#/.netTypeScriptAzure CloudSQL ServerOOP Knowledge

Preferred

Angular

Stack & domain

C#/.netTypeScriptAzure CloudSQL ServerRelational DatabasesOOPCollaborationProblem-solvingCommunicationSoftware EngineeringCloudData & Ai

About the role

Original posting from Pyyne via Ashby

ABOUT PYYNE

Pyyne is a modern technology consultancy engineering the next generation of digital products and services.

At Pyyne, we believe in using technology to unlock business potential, create sustainable growth, and drive forward digital excellence. Our solutions range from advanced Software Engineering, Cloud, and Data & AI solutions.

JOB SUMMARY

Pyyne is seeking a Senior Full Stack Engineer with experience with C#/.NET and frontend TypeScript to work as a consultant out of our South American Office. This is a high-impact role for Pyyne as we expand our collaboration with one of our fastest growing North American SaaS clients.

A successful candidate in this role is capable of writing rock solid code, as well as collaborating effectively within dynamic Scrum teams to ensure organizational success.

KEY RESPONSIBILITIES

  • Embed within existing client development team and maintain high standards of code quality and development best practices
  • Develop, test, and deploy high-quality web applications and services using the .NET stack
  • Partner with business analysts to align on requirements, define technical scope, and drive project delivery — proactively manage risks, dependencies, and stakeholder expectations across the team
  • Write clean, scalable, and maintainable code following best practices and design patterns (e.g., SOLID principles, Dependency Injection)
  • Participate in all phases of the agile development lifecycle, including sprint planning, daily stand-ups, code reviews, and retrospectives
  • Troubleshoot, debug, and upgrade existing software to ensure optimal performance and security
  • Contribute to technical documentation for new and existing features
  • Mentor and support junior and mid level developers on the team

Must Have Skills:

  • 5+ years of professional experience as a software engineer
  • 2+ years of experience with C#/.NET 8+
  • Experience with .NET Framework 4.8
  • Experience with Azure cloud
  • Experience with SQL Server and Relational Databases
  • Experience with TypeScript and frontend web frameworks like Angular
  • Strong OOP knowledge

Benefits:

  • Flexible remote working environment.
  • Career development opportunities in a fast-growing company.

Don’t meet every single requirement? Apply anyway! At our core, we value growth, adaptability, and passion just as much as a checklist of skills. If you are excited about this role and your experience doesn't align perfectly with every tech requirement, we still encourage you to apply. The only non-negotiable for us is fluent English, as you'll be collaborating daily with global teams. If you’ve got the language skills and the drive to learn, you might be exactly who we are looking for to bring a fresh perspective to our team!

Source: Pyyne careers (Ashby)

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