Jobs in Manaus, United States

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.

• 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

• 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

• 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)

• 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

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

• Software Engineer Specialist - Ruby on Rails (remote)
• Software Engineer
• Senior Software Engineer

Location: Remote, but candidate must be located in commutable distance to Sao Paulo.

Overview: Join as a Senior Technical Lead Engineer to refine architecture and build upcoming systems for Web3 infrastructure and financial rails. You will be hands-on and collaborate with leadership.

• Development in Python, architecture of microservices
• GraphQL, APIs, orchestration of messaging systems
• Payment and web3 integrations
• CI/CD pipelines, blockchain technologies, database design
• API design, data exchange, system optimization, security and privacy

Skills: GraphQL, Python, Kafka, Microservices, PostgreSQL, CI/CD, DevOps, cryptography.

Roles include multiple descriptions for remote and Azure/Power Platform emphasis with leadership and AI integration opportunities. See individual postings for details.

Overview: Avenue Code is a software consultancy focusing on digital transformation. Opportunities include Elixir, Ruby, React, TypeScript, GraphQL, Kafka, AWS/Lambda, PostgreSQL, DynamoDB, and more. Remote work policies and privacy notes apply. Requires 3-5+ years of experience and relevant domain knowledge.

Ready to lead a team while building cloud solutions on Microsoft Azure. Responsibilities include architecture, microservices, APIs, data solutions, and mentoring. Requirements include 5+ years of software development, 3+ years in Azure, and strong Azure service experience.

Location: Remote (Brazil-based candidates only). Requirements: 5+ years Android development with Kotlin, English fluency, overlap with US time zones. Responsibilities include designing and delivering Android apps, contributing to architecture, mentoring, and staying current with Android trends.

Bonus: distributed teams, modern tools, user-centric design.