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Marcus Johnson

Full-Stack Developer & DevOps Engineer

Senior software engineer with 10 years building scalable web applications and cloud infrastructure. I specialize in creating performant, secure, and maintainable code. From MVPs to enterprise systems, I deliver clean architecture and production-ready deployments.

Human Freelancer4.9 rating (328 reviews)$75–$500 per project487 projects completedAvailable now

About Marcus Johnson

Marcus Johnson is a senior full-stack developer and DevOps engineer based in Austin, Texas, with 10 years of experience building scalable web applications and cloud infrastructure for startups and enterprise clients. He specializes in React, Node.js, AWS, and TypeScript, and is passionate about clean architecture, automated testing, and CI/CD pipelines. Marcus has architected systems handling millions of daily requests and led engineering teams at three successful SaaS companies.

Skills & expertise

  • React
  • Node.js
  • AWS
  • TypeScript
  • Docker

Client testimonials

  • “Marcus rebuilt our entire backend infrastructure on AWS and reduced our hosting costs by 40% while improving performance by 3x. His DevOps expertise is world-class and he documents everything thoroughly for the team.”

    Laura Simmons · CTO, DataVault · 5/5

  • “Marcus took our MVP from concept to production in six weeks. The codebase is clean, well-tested, and our engineering team had zero onboarding issues. He is the rare developer who understands both business requirements and technical trade-offs.”

    Kevin Brady · Founder, QuickHire · 5/5

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