Senior Full Stack Software EngineerLocation: Remote — Brazil/US time zones (EST ±3h) - Contract: International contractor, $35/hour - Language:English (fluent) - Reports to: CTO, Engineering and Product team.About the roleVolatus is hiring a Senior Fullstack Engineer to own critical product work on a next‐generation platform for fertility clinics and their patients. You will join as a founding engineer, shaping both the product and the technical direction in a category where better software directly improves patient outcomes.Tech contextYou will work in a modern, greenfield stack centered on:- Frontend: Next.Js/React, Typescript, Tailwind CSS- Backend: Node.Js/TypeScript with a PostgreSQL core (schema design, authN,authZ, performance, transactions, triggers).- Data & integrations: Third-party API integrations;
performance profiling (e.G., Lighthouse).- Quality: Unit, integration, and end-to-end tests;
CI/CD.- Collaboration: Work closely with our Head of Engineering, Principal Engineer, Product Designer, and CEO.What you will do- Build and ship end‐to‐end features across the Next.Js frontend and Node/TypeScript backend.- Model and tune Postgres schemas;
ensure secure authN/authZ and strong performance.- Integrate external APIs and improve app reliability and speed (including Lighthouse‐driven improvements).- Write reliable tests (unit/integration/e2e) and contribute to CI/CD workflows.- Make pragmatic early‐stage architectural decisions and raise the engineering bar.What you will bring- Proficiency with AI tools to accelerate development and quality.- Strong production experience with Next.Js/React, Node.Js, and TypeScript.- Tailwind & CSS mastery;
responsive, accessible UI.- PostgreSQL expertise (modeling, security/auth, performance, transactions, triggers).- Integrations experience (third‐party APIs) and solid testing practice (unit/integration/e2e).- Portfolio or links to shipped projects/code.90-day outcomesIn your first 90 days, you will:- Lead at least one significant feature from design to production, used by real clinics or internal teams.- Improve a key part of the frontend experience (e.G., performance, usability, or design consistency) and document the standards for others.- Own part of the backend or data model, including at least one meaningful performance or reliability improvement.- Help define or refine testing and deployment practices so the team can ship faster and with more confidence.Nice to have- Experience building voice‐controlled components / speech‐to‐text.- Experience interacting with AI models from the web app.How we work- Remote within EST ±3 hours preferred;
open to other time zones if you can collaborate on US‐friendly hours.- Small, senior team with a strong bias toward action and ownership;
- Product-led culture: engineers are closely involved in discovery, tradeoff discussions, and shaping the roadmap.Hiring process- Coderpad Challenge (60 min)- Intro chat (45 min) – mutual fit and role context.- Technical deep‐dive & Live testing – discuss systems you've built;
pair on a focused problem (no whiteboard trivia).- Team conversation – meet engineering + product leadership.- References & offer.Volatus is an equal opportunity employer committed to building a diverse and inclusive team.