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Rio de Janeiro, Rio de Janeiro, Brasil
Onsite
About the role:
We are looking for a talented and passionate Senior Full Stack Developer with a specialized focus on delivering exceptional customer value through AI enablement and a rigorous approach to engineering. This role is designed for an engineer who thrives on building clean, high-quality software with a customer-first mindset, pushing the boundaries of technology through AI enablement to create superior user experiences and greater efficiency.
About the team:
You will join a fast-paced, motivated team of engineers, designers, and product managers dedicated to "shifting quality and security to the left" and relentlessly focusing on customer outcomes. We are looking for a developer who embraces Spec Driven Development (SDD) as a foundation for excellence and possesses a relentless mindset for automation. You must be able to leverage technology and AI tools to eliminate manual toil and internal friction, while maintaining absolute assurance in system reliability, security, and performance to ultimately serve our customers better and faster.
Responsibilities:
Architectural Excellence: Utilize Spec Driven Development (SDD) to ensure all features are well-architected, scalable, and documented before execution.
Product Development: Design, build, ship, and maintain the Fulcrum platform, collaborating with the team to deliver high-quality product features and exceptional UI/UX.
Intelligent Automation: Proactively identify opportunities to automate manual processes across the engineering lifecycle, using AI and custom tooling to increase velocity without compromising system integrity.
Teamwork: Constantly collaborate with team members across product, design, and engineering to ship quality features and maintain the Fulcrum platform. Actively provide feedback and opinions during problem definition and solutioning.
Scalable Architecture & Maintenance: Drive long-term platform growth by designing modular, extensible architectures while maintaining high code quality through rigorous peer reviews, proactively addressing security vulnerabilities, and optimizing for performance.
Continuous Growth: Raise your own and the team’s technical capabilities every day by staying at the forefront of AI, machine learning, and full-stack trends.
Qualifications:
Full Stack Expertise: 5+ years of experience as a full-stack engineer delivering software products, with at least 3 years focused on full-time web development.
Design & Documentation: Proven ability to utilize Spec Driven Development (SDD), translating complex requirements into clear technical blueprints.
Automation Mindset: Demonstrated experience in automating workflows, testing, or deployments, with a focus on maintaining high-assurance environments.
Technical Proficiency: Experience building and shipping high quality web applications through the whole Software Development Life Cycle.
Cloud & Infrastructure: Experience working with cloud platforms (AWS), containerization (Docker), and orchestration (Kubernetes), Vertex AI(Google).
Communication: Outstanding written and verbal communication skills with the ability to facilitate workshops and guide cross-functional sessions.
Technologies
Languages & Frameworks: Ruby on Rails, NodeJS, React, TypeScript, JavaScript
Testing: RSpec, Jest, Cypress
SDD Tools: Openspec
Coding Assistants: AI coding agents, Model Context Protocol (MCP), AGENTS.md
Data & Ops: PostgreSQL, Docker, Kubernetes, and various data processing tools
CI/CD: Tekton, Github Actions
Qualities We’re Looking For
Assurance-Focused Automation: A mindset that seeks to automate everything but understands that automation is only as good as the guardrails and quality checks surrounding it.
Results-Driven (GTD): A "Get Things Done" attitude. You identify next actions, communicate intent, and execute quickly in a fast-paced environment.
Ownership Thinking: The ability to take initiative, make informed decisions, and own a project from conception to delivery without being micromanaged.
Product-Oriented: A passion for building innovative customer focused technical solutions that solve real-world, painful data and workflow challenges for customers.
