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Zachary Johnson

Senior Full-Stack Engineer specializing in FinTech and cloud-backed web platforms

KinguinUniversity of OregonPhiladelphia, PA8 Years ExperienceSenior Level

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About

Full-stack engineer with strong AI systems and B2B SaaS experience across BrightOps, Zapier, Nordstrom, and Calendly. They’ve owned architecture for an AI-powered tutoring platform, improved retrieval quality with a hybrid vector-plus-keyword approach, and built Go services processing over 1 million student events per day. Particularly compelling for teams building data-intensive, reliability-critical products with LLM, workflow automation, or compliance-oriented use cases.

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Key Strengths

  • Full-stack engineering across frontend, backend, infrastructure, and product
  • Architected and implemented major parts of an AI-powered tutoring platform
  • Deep retrieval systems expertise including vector search and hybrid retrieval
  • Hands-on TypeScript/React/Node.js development in recent production work
  • Go microservices experience for high-volume event processing
  • Built systems handling over 1 million student events per day
  • Strong LLM/RAG evaluation and tooling experience
  • B2B SaaS platform experience shaped by accuracy, explainability, and response-time requirements
  • Reliability-focused backend design with idempotent processing and audit trails
  • Cross-functional ownership in a 15-20 engineer startup environment

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Experience

Full Stack Software EngineerKinguin · Nov 2024 – Apr 2026
Full Stack DeveloperNordstrom · Aug 2023 – Sep 2024
Full Stack DeveloperAlly Financial · May 2022 – Jun 2023
Software EngineerRamp · Oct 2019 – Feb 2022
Frontend Web DeveloperWorkday · Sep 2018 – Aug 2019

Education

University of Oregonbachelor, Computer Science (2018)

Languages

English

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Connect with Zachary

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Typically responds within 24 hours

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Zachary JohnsonSenior Full-Stack Engineer specializing in FinTech and cloud-backed web platforms