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Mid-Senior Fullstack Engineer (515)

Ubiminds

Florianópolis, SC Remote permanent

Posted: April 30, 2026

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Quick Summary

We're looking for a Mid-Senior Fullstack Engineer to join our team in Florianópolis, Brazil. The ideal candidate should have experience in building scalable and secure software applications, with expertise in front-end development, back-end development, and testing.

Job Description

Info on the Mid-Senior Fullstack Engineer role

Want to get to 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 development footprint. Ubi custom-curates Brazilian top 5% talent for their LATAM strategy, offering a unique combo of staff augmentation and employer-of-record services.

We're assisting a FinTech company that demystifies the commercial loan application process for business owners: a platform that allows applicants to complete loan applications digitally, streamlining the process for both applicants and lenders.

What you’ll do as a Mid-Senior Fullstack Engineer

- Work closely on a remote cross-functional team, where you’ll be responsible for assisting in designing and implementing new features, tackling technical debt, and more.

- You’ll contribute to product advancement with suggestions and insights.

- Write tests and documentation while deploying software in collaboration with the team.

Challenges

Develop high-performance, highly scalable, and accessible cloud-based loan origination software: an intuitive, mobile-friendly, application platform. Contribute to key features, being responsible for proactive insights.

In order to succeed in this position, you will need

Mandatory skills

- Advanced/fluent English skills – Excellent written and verbal communication skills

- Experience developing .NET (building features, scalability, refining the development process, deploying, and running the product).

- Experience with database design and optimization - SQL Server.

- Experience with unit and integration tests.

- Experience with Typescript and developing React-based web applications.

- Experience building B2B SaaS, or other cloud-based software - Azure cloud services.

Nice to have

- Previous experience working with Entity Framework Core (and migrations).

- Previous experience with containerization and CI/CD pipelines using GitHub Actions.

- Experience integrating with external systems via HTTP APIs, webhooks, and ETL.

- Experience implementing performant and secure GraphQL APIs in a .NET context

Non-technical skills

- Start-up environment with smaller teams: ability to work independently, while communicating often and transparently, and asking for help/information quickly, is essential.

- Looking beyond your own work to spot opportunities and issues within the application.

About Ubiminds

Cultural Values

- People First

- Average on Awesome

- Challenge Yourself

- Make it Happen

- We're in this Together

Perks and Benefits

As a Mid-Senior Fullstack Engineer at Ubiminds, you:

- Be 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 of 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.

How our process works

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

2. Client process (this may vary)

3. Offer (yay)

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