Senior Backend Software Engineer .NET / AWS (483)

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.

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.

- 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.

- 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).

- 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.

- 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.

- 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.

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

- 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!

- Candidate Referral bonus (promote Ubi to your tech friends, and get paid for it!)

- Miss working in the office? Our cool Florianópolis headquarters is available, whenever you want, with weekly quick massages & tasty snacks, soft drinks, and games

1. Interview with Tech Recruiter (chat about the job opening and your experiences)

2. Technical Assessment

3. Client Interview

4. Offer (yay)