Senior Software Engineer
Há 12 horas
About firmly firmly solutions turn moments of product discovery (AI, social, content, ads, messaging, etc.) into instant purchases through its agentic commerce platform — with fast, embedded checkout and a strong focus on security and reliability. If you enjoy building high-performance APIs, working on distributed systems, and shipping cloud-native solutions with real-world scale and constraints, you'll fit right in. What you'll do Build and evolve backend services and APIs in Node.Js/JavaScript for critical e-commerce/checkout flows. Develop edge/serverless systems on Cloudflare Workers (e.G., Workers and related services) focused on low latency, resilience, and scalability. Design and implement partner integrations (APIs, webhooks, event-driven flows) and near real-time data sync (e.G., pricing, inventory, order status). Improve observability (logs/metrics/tracing), incident readiness, and operational excellence ("you build it, you run it"). Strengthen engineering quality through testing, code reviews, CI/CD improvements, and pragmatic architecture decisions. Collaborate cross-functionally (Product, Partnerships, Data) and contribute as a technical leader/mentor within the team. Required skills & experience 6+ years of professional software development experience. Bachelor's degree in Computer Science or Software Engineering. Strong experience as a Senior Software Engineer building production-grade backends with Node.Js/JavaScript. Solid experience designing and operating APIs (REST and/or event-driven systems) with a quality mindset. Hands-on experience with Cloudflare Workers (Workers and other services) OR strong serverless/edge background and willingness to go deep on Cloudflare. Good foundation in data modeling and databases (SQL and/or NoSQL) for transactional systems. Strong understanding of security fundamentals (authN/authZ, secrets management, least privilege, secure-by-default design). Advanced English (spoken and written) — you'll collaborate with a global team and participate in meetings/doc reviews in English. Nice to have Experience with payments, checkout, fraud/risk, or other mission-critical e-commerce systems. Event-driven architectures, async processing, queues/streams. Performance/latency optimization, caching, edge patterns. Infrastructure as Code (Terraform) and Cloudflare Workers tooling (Wrangler); plus modern DevOps practices. Benefits & Career Growth Unimed Nacional health plan (coverage for spouse/partner and children). Meal and food allowance (VR/VA). Life insurance. UniOdonto dental plan. Career growth & advancement opportunities (mentorship, ownership, and room to grow with the team). Clear growth path (regular feedback and performance cycles). Ownership & autonomy (high-impact work, end-to-end responsibility). Learning & development support. How to apply Click Easy Apply on LinkedIn and attach your resume (PDF). Tip: parts of the interview process may be conducted in English.
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