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John Jensen

John Jensen

Senior Full-Stack Engineer

Seattle, WA · Open to remote

Rails · JavaScript · REST APIs · Linux deploys

[email protected]LinkedInGitHub

Full-stack engineer who ships products end-to-end—Ruby on Rails, JavaScript, REST APIs, and Linux deployments. Founder-operator with a track record of 0→1 MVPs, high-traffic media, and migrations that improved speed, SEO, and revenue. Building Cybinly; open to remote senior roles.

Skills

Languages & Frameworks

  • Ruby on Rails
  • JavaScript · TypeScript
  • HTML/CSS
  • Tailwind / Bootstrap
  • Astro / Gatsby.js
  • WordPress · Shopify (Liquid) · Ghost CMS

Backend & Data

  • RESTful APIs
  • PostgreSQL · SQLite
  • Authentication
  • MVC · ActiveRecord ORM

DevOps & Delivery

  • Git
  • Linux Servers
  • Deployments (AWS, DigitalOcean, Heroku, Linode, Cloudflare Pages)
  • Docker
  • Performance Optimization (Monitoring & Tuning)

Product & Growth

  • SEO
  • Google Analytics
  • Agile Workflows · Code Reviews · Testing
  • AI-Augmented Development (GPT, Claude, Grok for agentic coding and prototyping)

Leadership & Ops

  • Project Management · Team Leadership
  • B2B Sales Pipelines
  • Regulatory / compliance-minded operations
  • Iterative optimization in fast-paced environments

Experience

Founder | Cybinly.com

Seattle, Wa | October 2023 - Present

  • Developed Ruby on Rails platform to address untapped psychedelic space akin to Leafly or WeedMaps; built data-driven MVP from ideation to deployment, fostering informed wellness journeys for emerging users.
  • Engineered 3 interactive features including Dosage Calculator, Printable Experience Checklist, and real-time store locator API; enhanced user safety and accessibility through informed decision-making.
  • Authored guides on psychedelic science, safety, and legality; promoted evidence-based practices to build community.

Full-Stack Engineer | Northgate Chiropractic

Seattle, Wa | 2026

  • Built production marketing site for a North Seattle chiropractic clinic—local SEO, accessibility-conscious UX, and patient conversion on Astro + TypeScript + Tailwind, deployed on Cloudflare Pages.
  • Implemented LocalBusiness / Chiropractor structured data, sitemap, and permanent redirects from the legacy domain to northgatechiro.com.
  • Shipped multi-step digital new-patient intake and secure contact/intake email via Paubox; clear CTAs for auto accident and work injury care paths.
  • Performance-focused static build with minimal React islands, WCAG-oriented healthcare UX, and automatic dark mode from system preference.

Visit northgatechiro.com →

Technical Executive Assistant | Steam Seattle & Blue Magic

Seattle, Wa | December 2020 - September 2023

  • Supported technical operations for auto detailing and manufacturing businesses.
  • Migrated website from WordPress to Gatsby.js; enhanced speed by 75% and SEO, leading to 30% traffic increase.
  • Deployed booking system; increased slot availability and doubled revenue.
  • Directed development for kratom and mushroom product lines; managed formulation and packaging.
  • Oversaw nationwide sales and marketing; coordinated with distributors and trade shows.
  • Managed operations including task delegation, labor scheduling, and troubleshooting.

Co-Founder | Artisan Clouds

Seattle, Wa | January 2015 - November 2019

  • Co-founded e-liquid brands; scaled to co-packing for third-party clients, diversifying revenue.
  • Led R&D for e-liquid formulations; collaborated with chemists to meet client specs.
  • Implemented FDA compliance systems including testing and audits; minimized risks.
  • Scaled marketing, sales, and production; built B2B pipelines and automated lines for efficiency.
  • Built internal Ruby on Rails apps for batch tracking and inventory; enabled traceability.
  • Developed consignment system; reduced delinquency below 3% and boosted adoption.

Co-Founder & CTO | OnlyTheBeat.com

Seattle, Wa | January 2012 - May 2015

  • Co-founded EDM news platform; grew to second-largest global source for music insights.
  • Launched site with WordPress, rebuilt in Ruby on Rails; improved performance and scalability.
  • Recruited 45+ writers with VIP incentives; enabled high-volume content at low costs.
  • Engineered SEO and sharing tools; drove millions of monthly visits and optimized revenue.
  • Negotiated partnership with Complex Media; expanded distribution and audience reach.
  • Oversaw enhancements in responsive design and analytics dashboards; ensured agile scalability.

Web Design & Marketing | USC Events

Seattle, Wa | February 2011 - October 2013

  • Developed event websites, email systems, and administered Linux servers.
  • Applied data analytics and resolved performance issues.
  • Integrated ticketing APIs and updated apps with responsive design.

Education

Full-Stack Ruby on Rails Developer Certificate | Code Fellows

Seattle, Wa | 2014

  • Completed 12-week bootcamp in Ruby on Rails full-stack development; mastered MVC, ActiveRecord ORM, RESTful APIs, and scalable app building from concept to deployment.
  • Built projects integrating HTML/CSS/JavaScript front-ends with Ruby backends; included authentication, database management, Heroku deployment, agile workflows, and code reviews using Git.

Back-End Web Development with Ruby on Rails Certificate | General Assembly

Santa Monica, CA | 2013

  • Completed part-time course in Ruby on Rails back-end development; built skills in MVC, ActiveRecord ORM, RESTful APIs, and databases like PostgreSQL/SQLite.
  • Developed projects with authentication and CRUD operations; focused on code reviews, pair programming, Git version control, and scalable apps.

Contact

Open to remote senior full-stack roles. Email is best; LinkedIn and GitHub work too.