Senior DevOps Engineer & Tech Lead Remote (Latin America) · Contract : with path to expanded engagement About the Role We are a design-turned full stack development studio expanding our team with a Senior DevOps Engineer who will also serve as the technical lead over our existing frontend and backend developers. This is a contract engagement on a current client project : a React Native mobile app for iOS and Android : with strong potential to grow into a long-term role across additional projects. You will not just set up pipelines : you will be the senior technical voice on the team: reviewing architecture decisions, guiding the developers, unblocking issues, and making sure the team ships clean, production-ready code on schedule. About the Current Project The active project is a React Native mobile app being built for a client : targeting both iOS and Android, with weekly development sprints and a firm delivery deadline. The app involves real-time features including live location sharing, push notifications, group chat, and Google Maps integration. You would be leading a team of two developers (one frontend, one backend) already in place. Tech Stack Mobile • React Native (JavaScript) • Expo / EAS for builds and distribution • Google Maps SDK + Google Places API • Firebase Cloud Messaging (push notifications) • Firebase Crashlytics (crash reporting) Backend • NestJS (JavaScript) • Prisma ORM + PostgreSQL • REST API architecture • WebSockets (planned for live location + chat) • SendGrid (email OTP) + Twilio (SMS OTP) Infrastructure & Deployment • Render (backend hosting : staging + production environments) • GitHub Actions (CI/CD pipelines) • TestFlight (iOS beta distribution) • Google Play Internal / Closed Testing (Android beta distribution) • Apple App Store Connect + Google Play Console • Passwordless auth: Email OTP, SMS OTP, Apple Sign In, Google Sign In What You'll Do • Own and maintain CI/CD pipelines for both mobile and backend (GitHub Actions, EAS, Render deploys) • Manage staging and production environments : separation, secrets management, environment configs • Set up and maintain monitoring, logging, and alerting (Crashlytics, server side logging, optional Sentry) • Review architectural decisions made by the development team and guide them toward clean, scalable solutions • Conduct code reviews with a focus on security, privacy (especially location/ETA data handling), and reliability • Ensure all database migrations are versioned, reproducible, and tested on staging before production • Advise on WebSocket vs polling trade-offs for real-time features (live location, chat) • Help the team meet Apple App Store and Google Play Store compliance requirements • Proactively flag technical risks before they become blockers • Be available to unblock developers during active sprint work : a few hours per week minimum, more during crunch What We're Looking For Must-Have • 5+ years of experience in DevOps, infrastructure, or senior full stack engineering • Hands-on experience with CI/CD for mobile apps (React Native or similar) and Node.js backends • Experience deploying and managing Node.js / NestJS applications in production • PostgreSQL database management : migrations, performance, backup strategy • Strong understanding of environment separation, secrets management, and deployment pipelines • Experience with iOS (App Store Connect, TestFlight) and Android (Google Play Console) release pipelines • Comfortable acting as a technical lead : guiding junior/mid developers, not just doing infrastructure work • Proactive by nature : you flag issues, suggest improvements, and take ownership without waiting to be asked Nice to Have • Experience with Expo / EAS build system • Familiarity with Google Maps SDK or Places API integrations • Experience with WebSocket architecture for real-time features • Experience with Firebase (FCM, Crashlytics) • Background in mobile app store submissions and compliance Engagement Details • Type: Contract (freelance), with potential to grow into a longer-term engagement across multiple projects • Location: Remote : Latin America preferred (timezone alignment with our team) • Availability: Flexible hours, but consistent availability during sprint weeks is required How to Apply Send us a brief note (in English or Spanish) covering: • Your experience with mobile CI/CD and backend infrastructure • One example of a technical decision you caught or corrected on a team you worked with • Your availability and general rate expectations We move quickly : if your profile is a fit we will schedule a short technical call within a few days. Job Type: Contract Contract length: 2 months Application Question(s): • Have you led developers before? How many and in what capacity? • Have you worked with React Native projects end to end, including App Store and Play Store submissions? • Are you comfortable doing code reviews and flagging architectural issues, not just infrastructure work? • What is your availability and rate? • Share a link to your LinkedIn or portfolio. • Where do you live? Work Location: Remote