Backend Developer

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 Strong experience in full stack development (bonus: Python, TypeScript, JavaScript, Ember.Js, React, Angular, or similar) 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 careers@thinkdirtyapp.com 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) Plum.Io profile (optional) 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.