Senior Backend Software Engineer .NET / AWS

Ubiminds: You, International.

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IT Services and IT Consulting 👥 51 employees 📍 Florianópolis, Santa Catarina, BR Est. 2017

We connect people and companies who shape the world through software. NorthAm + LatAm. Brains + Hearts. \\FOR COMPANIES // Leading software companies partner up with Ubiminds to gain foresigh…

Job Overview

Ready to take the next step in your international career? We can support you!

Ubiminds is a GPTW-certified, people-first company that partners with American software product companies to scale their global teams. We curate top LATAM talent and connect professionals with long-term, high-impact opportunities while providing full employer-of-record support.

In this opportunity, you’ll join a global product engineering team building and evolving a high-volume, AI-powered SaaS platform used by thousands of companies worldwide.

Challenge

We’re looking for a Senior Backend Software Engineer (7+ years) to design, build, and maintain scalable, cloud-native microservices in a business-critical SaaS environment.

This role goes beyond implementation — you’ll act as a hands-on technical leader, contributing to architecture decisions, mentoring engineers, solving complex distributed system challenges, and strengthening engineering standards across a globally distributed team.

The platform operates at massive scale, requiring strong focus on performance, reliability, security, and cost efficiency.

Key Responsibilities

• Design and implement scalable microservices in a cloud-first environment (AWS).


• Translate product requirements into robust technical designs and architectural decisions.


• Develop secure, resilient backend services using C# and .NET Core.


• Ensure strong automated testing practices aligned with the test pyramid.


• Review peers’ code and mentor engineers to elevate engineering standards.


• Lead research and technical planning for complex initiatives.


• Troubleshoot and resolve complex production issues across distributed systems.


• Promote best practices balancing performance, scalability, cost, and delivery timelines.


• Collaborate cross-functionally with Product Managers, UX Designers, and UI Engineers.

Required Qualifications

• 7+ years of professional software engineering experience.


• Strong expertise in C# and .NET Core.


• Deep understanding of microservices architecture and service-oriented design.


• Solid AWS experience and strong cloud best practices knowledge.


• Hands-on experience with Docker and Kubernetes.


• Strong SQL knowledge and relational database design (MSSQL, PostgreSQL, Aurora).


• Familiarity with DynamoDB.


• Experience designing scalable, secure, cost-effective cloud applications.


• Strong understanding of secure coding practices.


• Experience working in distributed, global teams.


• Strong English communication skills (written and verbal).

Nice to Have

• Experience working on high-complexity, high-volume SaaS platforms.


• Experience mentoring engineers and defining engineering standards.


• Deep operational monitoring and observability expertise.


• Experience promoting architectural patterns and engineering best practices.


• Background in AI-driven SaaS, enterprise B2B platforms, or HR Tech.


• Openness to learning additional tools and cloud optimization strategies.

Team & Environment

Cross-functional, globally distributed product team.

Strong collaboration across Backend, Product, UX, and Frontend.

Engineering culture focused on ownership, accountability, and continuous improvement.

High-impact environment where architectural decisions influence millions of end users.

About Ubiminds

Our Culture

- People First. We are all about people!

- Challenge yourself. There’s always room for improvement and continuous improvement is in our essence.

- Make it happen. Be ready to take challenges as they come. It’s all about attitude and commitment.

- We’re in this together. We work as a team, thrive as a team, and evolve as a team.

- Averaging on awesome. We work hard to deliver high-quality services and look forward to exceeding expectations.

- Keep it real. We promise you honesty, transparency, and openness, regardless of the situation.

Benefits

As a Senior Backend Engineer - NET / AWS @Ubiminds, you:

• Are placed in a product-based company, with the same treatment as their full-time employees.


• Have our full back-office support, from career guidance to HR and concierge services.


• Enjoy our remote-first policy – we are a distributed team, after all.


• Get your own MacBook (none of that "bring your own device" stuff here).


• Have access to growth opportunities with other amazing technology professionals, through tech talks, chapter meetings, and even remote happy hours for tons of fun!


• Improve your English through free lessons with a native English speaker - get to the next level on your communication skills!