Senior full-stack engineer

Jake Johnson

I build durable, humane web applications for people doing real work. I have more than a decade of experience across greenfield and legacy systems, startups and enterprise teams.

I am product-minded, customer-focused, and especially enjoy taking an ambiguous workflow and making it reliable, understandable, and safe. My recent work spans Rails, React, TypeScript, PostgreSQL, payments, integrations, and internal tools.

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Selected client work

Recent Rails applications

These are private client products, so the case studies focus on the work and the systems rather than client data or source code.

01 Private client work
Zero Nexxus sign-in screen
Zero Nexxus sign-in experience

Zero Nexxus

Client operations platform

A Rails and Inertia application for managing a sensitive client-service workflow. I built and extended superadmin tools for client profiles, onboarding, documents, tasks, scheduling, and internal operations.

  • Role-aware client and administrative workflows
  • Calendly-backed call scheduling and completion history
  • Stripe, MFA, email, and document-management integrations
RailsReactTypeScriptPostgreSQL
02 Private client work
123CEU Portal superadmin view for scheduling and managing live webinars
Live webinar management for administrators

123CEU Portal

Education and webinar platform

A full-stack training portal supporting course enrollment, live webinars, payments, evaluations, and certificates. My work has focused on reliable customer flows and high-risk boundaries such as authorization, billing, and private webinar activity.

  • MediaMTX-backed live webinar workflows and producer–instructor collaboration
  • Post-webinar evaluations and certificate delivery
  • Frontend webinar reliability debugging, checkout safeguards, and CI gates
RailsReactInertiaMediaMTXStripe
03 Independent product · in development
TruthSeek research library showing ranked paper results, review priorities, sources, and publication-year filters
Research discovery with transparent ranking controls

TruthSeek

Research discovery SaaS

I’m building TruthSeek to help people search, evaluate, and organize research papers with clearer controls over sources, date ranges, and ranking criteria.

  • Research-paper search with source and date filters
  • Transparent controls for relevance, rigor, novelty, and transparency
  • Private-paper workflows with access and usage boundaries
Next.jsReactTypeScriptPostgreSQL

Experience

TruthSeekAI

Founder & Senior Software Engineer · Remote · Jul 2024–Present

Designed, built, and deployed a research-triage SaaS with secure private-document workflows, subscription billing, search, background jobs, and cloud infrastructure. I own the product end to end, including its architecture, security boundaries, billing, deployment, operations, and user-facing design.


Calforce LLC and confidential client engagements

Freelance Full-Stack Developer · Remote · Ongoing contract

Contracted with Calforce LLC to build and extend Rails applications for client operations and continuing-education webinar workflows. Delivered role-aware administrative workflows, scheduling, documents, payment flows, MediaMTX-backed webinars, evaluations, and certificates. Diagnosed frontend webinar failures and strengthened focused system coverage around authorization, billing, and privacy.


MDLive/Cigna

Senior Software Engineer · Remote · Oct 2022–Nov 2023

Contributed to a Patient Care Plan microservice designed to support HIPAA and ADA requirements, using Ruby on Rails and React. Integrated third-party APIs and delivered portal and backend features through test-driven development and production-quality review.


Stord

Senior Software Engineer · Remote · Feb 2019–Apr 2021

Helped modernize a supply-chain logistics platform from a Rails monolith to React and Phoenix while shaping the Phoenix backend architecture and relational data model.


SmartBIM

Lead Frontend Engineer · Remote · Nov 2017–Dec 2018

Led frontend redevelopment of a BIM monetization platform from Rails to a greenfield React and Express application, maintaining feature parity and establishing near-complete Jest coverage.


Springbot

Senior Full-Stack Engineer · Atlanta, GA · Feb 2016–Jul 2017

Built complex email-segmentation and high-volume CSV workflows, and delivered Rails and AngularJS features for calendar and marketing-service integrations.


Tapjoy

Full-Stack Engineer · Atlanta, GA · Apr 2014–Dec 2015

Built advertiser-dashboard features with Rails, JavaScript, React, and Backbone, and contributed to the public API.


Scoutmob

Frontend Engineer

Worked as a frontend developer on the Scoutmob Shoppe and Local applications.