Ubiminds

Full-stack Engineer

• Design, develop, and deliver scalable multi-tenant SaaS applications using .NET, Angular, SQL Server/PostgreSQL, and AWS.
• Own end-to-end delivery of features, from domain modeling and backend services through frontend implementation, automated testing, deployment, and production support.
• Generate production-ready code using AI-assisted development tools such as GitHub Copilot, Cursor, Claude Code, and Replit-based workflows.
• Collaborate with Architects to define application architecture and validate technical approaches through Proof of Concepts (PoCs).
• Design systems using modern architectural patterns including Domain-Driven Design (DDD), CQRS, Event-Driven Architecture, Backend-for-Frontend (BFF), API Gateway.
• Build modern Angular applications using standalone components, Signals, RxJS, Reactive Forms, and reusable UI architectures.
• Design efficient database models and optimize SQL performance for high-volume SaaS applications.
• Implement scalable integration, messaging, and distributed system patterns.
• Troubleshoot complex production issues, perform root cause analysis, and continuously improve system reliability and performance.
• Mentor engineers through architecture guidance, technical leadership, code reviews, and knowledge sharing.
• Drive engineering best practices around quality, automation, security, observability, and AI-powered software development.

Principal Full Stack Engineer – .NET ecosystem

Operations

• Design and implement predictive models and statistical analyses to support business initiatives.
• Apply supervised and unsupervised machine learning techniques to solve problems such as customer segmentation, churn prediction, and behavioral analysis.
• Partner with business stakeholders to frame analytical problems and translate them into actionable insights.
• Prepare, clean, and transform large datasets to support modeling and advanced analytics.
• Develop and maintain reproducible analytical workflows using Python, R, SQL, or similar tools.
• Build dashboards and analytical reports that help communicate results and support decision-making.
• Evaluate model performance and continuously improve models through experimentation and statistical validation.
• Promote a data-driven culture across the organization by educating stakeholders on analytical methodologies.
• Collaborate in cross-functional teams working in agile environments.

Ad Operations Manager

SDET

• Own the technical onboarding experience for new customers
• Lead hands-on enablement sessions to implement across test frameworks and CI/CD pipelines
• Guide customers through initial use cases that align with their success criteria
• Ensure customers reach meaningful value quickly and confidently
• Drive sustained adoption across teams, projects, and workflows
• Help customers expand test coverage, standardize best practices, and scale usage over time
• Provide expert guidance on test automation strategy, visual testing, and quality maturity
• Identify adoption gaps and proactively recommend technical improvements
• Serve as the primary technical point of contact for assigned accounts
• Troubleshoot and resolve complex technical challenges in coordination with Support team
• Conduct technical health checks, architecture reviews, and optimization sessions
• Lead root cause analysis for escalations and recurring issues
• Proactively identify technical risks that could impact adoption, satisfaction, or renewal
• Partner with CSMs to support renewals and expansions with strong technical validation
• Advocate for customer needs by sharing product feedback, patterns, and gaps with Product and Engineering
• Collaborate closely with Product, Engineering, Support, Sales, and Customer Success
• Contribute to onboarding playbooks, best practices, and enablement materials
• Help improve internal processes that scale technical customer success

Senior Technical Account Manager – Automation Test Engineer

AI Engineer

• Build agentic workflows and AI-powered products.
• Design and deliver production-grade AI solutions from concept to deployment.
• Collaborate closely with Product and Engineering teams to deliver high-quality software.
• Take ownership of ambiguous problems and drive initiatives end-to-end.
• Mentor engineers and help elevate the team's AI capabilities.
• Contribute to the evolution of AI standards, patterns, and engineering practices.
• Develop scalable and maintainable solutions in a polyglot environment.
• Promote strong collaboration and transparent communication across teams.
• Influence the technical direction and AI culture of the organization.

Principal Full Stack Software Engineer – AI-First Development

Backend Engineer

• Build and expand a large-scale healthcare data platform and member management solution.
• Design, develop, and maintain high-performance backend services and APIs.
• Partner closely with Product and Engineering teams to deliver scalable solutions.
• Take ownership of projects from concept through deployment and ongoing operation.
• Contribute to AI-powered initiatives and help design and launch AI-driven products and features.
• Scale infrastructure that connects healthcare insurance carriers and technology partners.
• Improve engineering standards, development practices, and technical processes.
• Mentor junior and mid-level engineers through technical guidance and code reviews.
• Participate in architecture discussions and long-term technical planning.
• Write clean, maintainable, well-tested, and production-ready code.

Staff Backend Engineer – Rust

Senior Software Engineer – AI Agentic Engineer

• Design and implement new features in a React/TypeScript codebase;
• Manage routes and server-side rendering with React Router;
• Build responsive, accessible UIs using Tailwind CSS and modular CSS;
• Integrate with backend services via Axios (or similar) and maintain a clean API client layer;
• Define and maintain TypeScript interfaces/models for data and service contracts;
• Enforce code quality with ESLint, Prettier, lint-staged and Husky pre-commit hooks;
• Write unit/integration tests (Jest, React Testing Library or equivalent);
• Collaborate with product and design teams to translate requirements into polished UI;
• Troubleshoot bugs, optimize performance, and participate in code reviews

Database Engineer

• Info on the Senior Automation Engineer - C# / Java 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.
• Ubiminds is assisting a company that is building an exciting new product suite for Public Safety.
• Challenge
• We’re looking for a Senior Automation Engineer with strong experience in #C or Java to help build modern, scalable, and maintainable applications.
• This role is ideal for someone who enjoys working across the full stack — from crafting intuitive, responsive user interfaces to designing robust APIs and cloud-ready backend services — while applying clean architecture principles and modern engineering practices.
• Responsibilities:
• - Write and maintain automated unit and integration tests (frontend + backend)
• - Review existing codebases to improve test coverage and identify gaps
• - Use company-provided AI tools (e.g., Claude, Copilot) to speed up test creation and refactoring
• - Debug test failures across application, infrastructure, and data layers
• - Reduce test flakiness and noise in CI pipelines
• Mandatory Skills:
• Software Engineering
• - Strong programming skills in C# or Java, and experience with Playwright
• - Comfortable working in large, existing codebases
• - Able to understand and navigate unfamiliar systems
• - Solid understanding of testing fundamentals (unit vs. integration, mocking, isolation, etc.)
• Test Automation
• - Hands-on experience writing and maintaining unit and integration tests
• - Familiar with frameworks like xUnit, JUnit, Jest, Karate, or similar
• - Able to troubleshoot test failures across multiple layers of the stack
• Engineering Practices
• - Strong debugging and problem-solving skills
• - Committed to writing high-quality, maintainable test code
• - Comfortable in a Shift Left development environment
• - Self-driven and able to collaborate effectively with cross-functional teams
• - Clear and simple English communication (written and verbal)
• AI & Modern Development
• - Excited to use AI-powered tools (Claude, Copilot, etc.) in your daily work
• - Willing to experiment with AI for test generation, refactoring, and coverage analysis
• - Basic understanding of AI concepts like LLMs, or a strong interest in learning
• Nice to Have:
• - Strong experience writing tests based on product use cases or specs
• - Hands-on experience writing tests using Claude Code or similar AI tools
• - Experience writing end-to-end tests using Playwright
• Team & Environment:
• - Collaborative environment working closely with PMs, QA, and designers.
• - Engineers are fully responsible for testing and code quality (shift-left development culture).
• - Balanced workload of new feature development and ongoing system maintenance.
• - Encourages ownership, accountability, and continuous improvement.
• 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.
• Perks and Benefits
• As a Senior Automation Engineer - C#/ Java @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
• How our process works
• 1. Interview with Tech Recruiter (chat about the job opening and your experiences)
• 2. Technical Assessment
• 3. Client Interview
• 4. Offer (yay)

Senior Test Automation Engineer – C# / Java

• Design, implement, and maintain robust .NET Core services and APIs within a microservices architecture.
• Build responsive and accessible front-end experiences using React and TypeScript.
• Write clean, testable, and scalable code, following modern engineering best practices.
• Support automated test coverage for high-quality releases.
• Participate in design reviews, code reviews, and technical planning.
• Help identify and reduce technical debt across the platform.

Senior Full Stack Software Engineer – .NET, React

DevOps Engineer

• Analyze and assess legacy CI/CD pipelines, identifying inefficiencies, bottlenecks, and manual processes.
• Design and implement modern CI/CD pipelines with automated testing, security checks, and optimized deployments.
• Migrate existing infrastructure and build processes to Infrastructure as Code (IaC) using AWS CloudFormation.
• Define and standardize “golden paths” for build and deployment workflows across environments.
• Improve pipeline observability through logging, monitoring, and alerting to ensure fast and actionable feedback.
• Collaborate closely with engineering teams to improve build reliability and deployment confidence.
• Own CI/CD improvements end-to-end, from design through production rollout.
• Proactively contribute to improving DevOps practices, tooling, and engineering efficiency.