Mid-Level Full Stack Engineer

Position:
Mid-Level Full Stack Engineer .NET + Angular

Company:
Ubiminds

Location:
Remote

Employment type:
Full-time

Short Summary:
Drive security remediation and application hardening across full-stack applications, working directly with production codebases to fix vulnerabilities and ensure system integrity.

Responsibilities:
- Remediate security findings across the stack — dependency upgrades (NuGet, npm), code-level fixes (authorization, XSS, path traversal, SQL injection, weak cryptography), credential rotation, and container/Kubernetes hardening.
- Write tests for every fix — unit tests proving the vulnerability is closed, plus functional verification that the feature still works.
- Own upgrades end to end — diagnose build or behavior issues when major version bumps occur and see them through.
- Document what you learn — produce written analysis of upgrades to prevent team repetition.
- Collaborate across teams — partner with owning teams for context and reviews across multiple repositories.
- Coordinate credential rotations — sequence safe rollouts with DevOps across all secret consumers.
- Raise judgment calls — identify and reason through false positives or unsuitable fixes for the architecture.
- Help make it stick — implement automation to keep routine dependency updates out of the backlog.

Requirement:
- 3–5 years of professional software engineering experience.
- Solid C# / .NET background, comfortable working in ASP.NET Core web applications.
- Solid TypeScript experience with modern frontend frameworks (Angular preferred; React or Vue transfers well).
- Working SQL knowledge (writing queries, understanding parameterization, using ORMs/data access layers).
- Habitual test-writing practice (unit tests and integration/E2E experience).
- Git fluency (branching, rebasing, clean commits, useful pull requests).
- Comfort reading and navigating unfamiliar codebases.
- Clear written and spoken English for daily cross-team collaboration.
- Genuine interest in application security.

Benefits:
- 💻 Equipment provided — none of that "bring your own device" stuff here
- 🛡️ Full back-office support — Legal, Accounting, HR Business Partner, and Delivery team
- 🧭 Career and cultural mentoring — how to show up, stand out, and navigate US work culture
- 🗣️ Free English lessons with a native speaker
- 🏖️ Florianópolis HQ always open — 100% remote, but the office is there whenever you want it.