Senior Software Developer - Python React (Costa Rica)

📋 Description

• • Shape the future of scalable web applications as a Senior Software Developer at JBS Dev, where you will own the full lifecycle of products that serve thousands of users across Latin America and beyond. You will architect robust backend services in Python, craft pixel-perfect React interfaces, and continuously push the boundaries of performance and user experience.
• • Design and implement clean, maintainable RESTful APIs in Python that power everything from real-time dashboards to complex data pipelines. You will apply SOLID principles, write extensive unit and integration tests, and ensure every endpoint is documented, versioned, and observable for seamless consumption by frontend and third-party clients.
• • Build responsive, accessible, and lightning-fast user interfaces with React, TypeScript, and Next.js. You will leverage hooks, context, and modern state-management patterns to deliver dynamic experiences that work flawlessly on desktop, tablet, and mobile, while collaborating with UX designers to translate Figma prototypes into production-ready components.
• • Own the data layer by modeling efficient PostgreSQL schemas, writing performant queries, and tuning indexes to keep latency under 50 ms at the 95th percentile. You will also craft migration scripts, set up read replicas, and implement caching strategies with Redis to ensure high availability under peak load.
• • Automate infrastructure end-to-end using AWS CDK in TypeScript. You will spin up VPCs, ECS Fargate services, Lambda functions, RDS clusters, and CloudFront distributions as code, enabling one-command deployments and reproducible environments across dev, staging, and production.
• • Establish and evangelize CI/CD best practices in GitHub Actions. You will write workflows that lint, test, build, and deploy every pull request in under 10 minutes, enforce branch protection rules, and integrate security scanning so releases are both rapid and bulletproof.
• • Collaborate daily with product managers, QA engineers, and DevOps in agile squads. You will refine user stories, estimate complexity, demo features every sprint, and use Slack, Jira, and Notion to keep stakeholders informed and engaged from ideation to post-launch monitoring.
• • Champion observability and reliability by instrumenting code with structured logging, distributed tracing, and custom CloudWatch dashboards. You will define SLIs/SLOs, participate in blameless post-mortems, and rotate on-call duties to ensure 99.9 % uptime for mission-critical services.
• • Mentor mid-level and junior developers through pair programming, code reviews, and brown-bag sessions. You will create internal style guides, promote TDD, and foster a culture where constructive feedback accelerates both individual growth and overall team velocity.
• • Stay ahead of the curve by evaluating new tools, running proof-of-concepts, and presenting findings to the guild. Whether it’s experimenting with serverless edge functions, adopting GraphQL, or exploring Rust for performance hotspots, your curiosity will directly influence the technical roadmap.
• • Contribute to open-source initiatives and internal libraries that the entire JBS Dev community can reuse. You will write clear READMEs, semantic versioning, and automated changelogs so that every package you release becomes a force multiplier for teams across the company.
• • Enjoy the freedom of 100 % remote work while maintaining deep human connections. You will join virtual coffee chats, quarterly in-person meetups in Costa Rica, and collaborative hackathons that celebrate wins, share knowledge, and keep our culture vibrant and inclusive.