Senior Full Stack Software Engineer – .NET, C# / React
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Job Description
Senior Full Stack Software Engineer joining Ubiminds' team working on core systems and evolving platform capabilities. Develop features across front-end and back-end systems within a people-first culture.
Responsibilities:
- Develop and maintain features across front-end (React) and back-end (.NET/C#) systems.
- Work with messaging systems (SMS, WhatsApp, email) via providers such as Twilio.
- Design and evolve solutions for scheduling, calendar integrations, and event-driven workflows.
- Contribute to a multi-repository codebase using technologies such as C#, Python, and React.
- Support the evolution toward microservices architecture, Kubernetes, and continuous deployment pipelines.
- Participate in architectural and cross-team technical discussions.
- Experiment with and adopt AI-driven development practices across the software development lifecycle.
- Write clean, maintainable, and testable code.
- Actively share knowledge and collaborate across teams.
Requirements:
- Strong experience with .NET (C#) in production environments.
- Solid experience building modern front-end applications with React.
- Experience with relational databases such as MS SQL.
- Experience working in complex, existing systems (not only greenfield projects).
- Familiarity with:
- Microservices architecture
- CI/CD pipelines
- Containerized environments (e.g., Kubernetes)
- Ability to work across multiple technologies and codebases.
- Experience working in distributed teams.
- Strong communication skills in English (C1 level — written and verbal).
Benefits:
- You will be placed in a product-based company and receive the same treatment as their full-time employees.
- Full back-office support, from career guidance to HR and concierge services.
- Enjoy our remote-first policy — we are a distributed team.
- Company-provided MacBook (no "bring your own device" required).
- Access growth opportunities with other technology professionals through tech talks, chapter meetings, and remote social events.
- Free English lessons with a native English speaker to improve your communication skills.
- Candidate referral bonus (recommend colleagues and get rewarded).
- If you miss the office, our Florianópolis headquarters is available whenever you want, with weekly quick massages, tasty snacks, soft drinks, and games.
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