Brendan S.

👋 Quick note before we get into the technical stuff: I took on several long-term, private architecture and systems projects over the last couple of years, which is why my recent Upwork activity looks quiet. I’m now opening availability again for select clients who need senior-level problem solving—not just task execution. —— I specialize in solving complex systems problems where applications, identity, cloud, and data pipelines need to work together reliably. For 10+ years I’ve worked in enterprise and fintech environments where uptime, correctness, and security are mission-critical. Core strengths: • Full-Stack Web Applications (Next.js, React, Node) • Web3 / Blockchain Integration (wallet auth, smart contract workflows, token ecosystems) • Identity & Authorization (SSO, OAuth2, SAML, claims/roles, org-level permission design) • API & Webhook Integrations across SaaS + legacy systems • DevOps, CI/CD, observability, logging, autoscaling, secure deployments (AWS / Azure / GCP) • CMS & Custom Platform Architecture (WordPress, Sitecore, modular CMS systems) I’m particularly good at untangling systems that weren’t designed to integrate—stabilizing pipelines, eliminating duplication issues, implementing idempotency, improving data flow, and simplifying architecture so it’s measurable, predictable, and easy to maintain. You’ll get: • Clear daily or weekly progress updates • No guesswork or disappearing acts • Solutions explained in plain language (not jargon) • Work that is maintainable by your internal team after handoff If you want a reliable senior who can fix the hard stuff and communicate like a human, let’s talk.