Desenvolvedor Java Ee Backend Sênior

Backend Developer (Ruby on Rails/Python)

Think Dirty is seeking a highly skilled and product-minded full stack developer to enhance, scale, and evolve the backend and user-facing layers of our mobile app. This role is ideal for someone who thrives in a fast-moving environment, is passionate about clean code, and is excited to explore the integration of AI tools into modern product development.

You’ll collaborate with a cross-functional team of engineers, designers, and product leaders to build scalable infrastructure, optimize data pipelines, and drive innovation using emerging AI technologies.

Key Responsibilities

• Design, build, and maintain efficient, reusable, and reliable Ruby on Rails code across backend and full-stack systems
• Build and maintain robust APIs (GraphQL/OpenAPI) to support our mobile and web applications
• Explore and integrate AI tools (e.g., LLMs, vector search, embeddings, or GitHub Copilot) to accelerate product features and development workflow
• Collaborate on architecture decisions, scaling infrastructure, and ensuring security best practices
• Identify and eliminate performance bottlenecks, bugs, and inefficiencies
• Contribute to mobile development support for native iOS and Android
• Partner with front-end and product teams to ship clean, AI-augmented features users love
• Participate in the entire development cycle from ideation to deployment
• Log hours and tasks to support SR&ED compliance and project visibility

Qualifications

• 5+ years of experience in backend API development using Ruby on Rails
• Proficiency with GraphQL, OpenAPI, and RESTful architectures
• Advanced knowledge of Ruby 3, Rails 7, and PostgreSQL/MySQL
• Experience deploying and maintaining apps on Heroku (or AWS/GCP equivalents)
• Solid grasp of object-oriented programming, MVC, and ORM frameworks
• Familiarity with AI APIs or tools (e.g., OpenAI, LangChain, Hugging Face) or a strong interest in learning
• Working knowledge of DevOps, CI/CD pipelines, and cloud architecture
• Strong experience in debugging, testing, and performance tuning
• Comfort with code review, documentation, and collaborative engineering practices
• Familiarity with Agile/Scrum workflows
• Ability to communicate clearly with technical and non-technical stakeholders
• Self-starter with a growth mindset and product ownership mentality

Bonus Points For

• Previous experience integrating AI/ML models into consumer-facing products
• Contributions to open-source projects or developer communities
• Experience with microservices architecture or serverless patterns
• Familiarity with SOC2, GDPR, or other compliance frameworks
• Mobile development (native or hybrid frameworks)

Who You Are

• You believe code should be clean, readable, and purposeful
• You’re a curious builder who sees AI not as a threat but as a tool to amplify great engineering
• You love collaborating with product, design, and marketing to create impact
• You thrive in fast-paced startup environments and take initiative
• You’re eager to experiment, ship fast, and iterate even faster

To Apply

Please email your application to with the subject line:

“AI-Augmented Full Stack Developer Application – (Your Name)”

Include the following:

• First & Last Name
• Email
• Location (City)
• Resume/CV
• LinkedIn Profile
• GitHub Profile (if available)
• One sentence describing who you are
• 50 words on why you want to work at Think Dirty
• Desired Salary
• Confirmation of legal work authorization

We look forward to building the future of clean beauty tech with you.

Senior Backend Developer - Golang/Node

Think Dirty is seeking a senior backend developer with Golang/Node expertise to lead backend initiatives, scale infrastructure, and mentor teammates. This role emphasizes product-minded development, clean code, and AI tool integration.

Key Responsibilities

• Design, build, and maintain scalable backend services using Golang and Node.js
• Architect and implement robust APIs (GraphQL/OpenAPI/REST) to support mobile and web apps
• Integrate AI tools to accelerate product features and development workflows
• Lead reliability, security, and performance improvements across services
• Collaborate with cross-functional teams to ship AI-augmented features

Qualifications

• 5+ years of backend development experience with Golang/Node
• Experience with GraphQL, OpenAPI, RESTful APIs
• Strong knowledge of databases (PostgreSQL/MySQL) and cloud environments
• Familiarity with DevOps, CI/CD pipelines, and monitoring
• Experience with microservices or serverless patterns is a plus

Bonus Points For

• AI/ML model integration experience
• Open-source contributions
• SOC2, GDPR, or other compliance familiarity
• Mobile development experience

Who You Are

• Curious, proactive, and excited by AI-augmented engineering
• Strong collaborator and effective communicator
• Comfort in fast-paced startup environments

To Apply

Follow the same application process as above.

Senior Backend Developer - Golang/Node

Think Dirty is seeking a senior backend developer with Golang/Node expertise to lead backend initiatives, scale infrastructure, and mentor teammates. This role emphasizes product-minded development, clean code, and AI tool integration.

Key Responsibilities

• Design, build, and maintain scalable backend services using Golang and Node.js
• Architect and implement robust APIs (GraphQL/OpenAPI/REST) to support mobile and web apps
• Integrate AI tools to accelerate product features and development workflows
• Lead reliability, security, and performance improvements across services
• Collaborate with cross-functional teams to ship AI-augmented features

Qualifications

• 5+ years of backend development experience with Golang/Node
• Experience with GraphQL, OpenAPI, RESTful APIs
• Strong knowledge of databases (PostgreSQL/MySQL) and cloud environments
• Familiarity with DevOps, CI/CD pipelines, and monitoring
• Experience with microservices or serverless patterns is a plus

Bonus Points For

• AI/ML model integration experience
• Open-source contributions
• SOC2, GDPR, or other compliance familiarity
• Mobile development experience

Who You Are

• Curious, proactive, and excited by AI-augmented engineering
• Strong collaborator and effective communicator
• Comfort in fast-paced startup environments

To Apply

Follow the same application process as above.

Senior Backend Developer - Golang/Node

Think Dirty seeks a senior backend developer with Golang/Node, focused on building scalable, secure systems for our AI-enabled platform.

Who You Are

• Product-minded, detail-oriented, and collaborative
• Strong communications and ownership mindset

To Apply

Apply via the standard process above.

Backend Developer (Ruby on Rails/Python) - Think Dirty Focus

Think Dirty is seeking a highly skilled and product-minded full stack developer to enhance, scale, and evolve the backend and user-facing layers of our mobile app. This role emphasizes clean code and AI tool integration.

Key Responsibilities

• Design, build, and maintain Ruby on Rails backend and APIs
• APIs (GraphQL/OpenAPI) for mobile and web apps
• AI tool integration to accelerate product features
• Collaborate on architecture, security, and performance
• Support mobile development and implement AI-augmented features

Qualifications

• 5+ years Ruby on Rails development
• GraphQL/OpenAPI/REST experience
• Ruby, Rails, and database proficiency

Bonuses

• AI/ML model integration
• Open-source contributions
• Mobile development experience

Who You Are

• Product-minded, proactive, and collaborative

To Apply

Same application process as above.

We look forward to building the future of clean beauty tech with you.

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