David Kalina

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Full Stack Developer

davidkalina@proton.me385-225-6102Provo, UT

Full Stack Developer blending strong design instincts with deep technical acumen. Over 4 years turning ambitious product ideas into scalable, polished software—from AI-backed QA systems to real-time dashboards. I thrive in fast-moving teams where I can own end-to-end delivery and build tools that make users' lives easier. Passionate about bridging user empathy with engineering excellence to ship impactful products.

Key Strengths

Eye for Design
Strong Problem Solver
Team Player
Intuitive Thinker
Clear Communicator

Technical Skills

frontend

React
Vue
Next.js
React Native
CSS
HTML

backend

Node.js
SQL
Supabase
Firebase
Docker
API Design

tools & platforms

TypeScript
AWS
Twilio
D3.js
WordPress

Experience

Full Stack Developer

Spontigo | Vineyard, UT

Mar 2025 - Present
  • Developed an Al-powered QA system using natural language processing to flag risky client interactions in real time.
  • Built dynamic, schema-driven form builder in Vue for concierge itineraries, enhancing data accuracy and productivity.
  • Created responsive marketing pages and custom dashboards with Vue + React.
  • Wrote global middleware to track API route health via AWS CloudWatch.
  • Built a lead generation script installed on client sites (e.g., Hotel Park City).

Full Stack Developer

K-Optional Software | Brooklyn, NY

May 2022 - Jun 2024
  • Translated complex UI/UX designs into scalable React components.
  • Built a Notification Center using Firebase and TypeScript to increase engagement.
  • Integrated Twilio for secure phone provisioning; maintained robust API reliability.
  • Led development of white-label review platform (Alfaphox/Revive Ratings).
  • Mentored junior devs and conducted technical interviews to grow the team.
  • Delivered a cross-platform PWA for operational efficiency at Maxwell Pipeline Services.

Full Stack Developer

Samba Scientific | Longmont, CO

Mar 2020 - Mar 2021
  • Automated cold-email flows using SendGrid API, streamlining marketing efforts.
  • Built Python-based system to manage job board postings across platforms.
  • Launched multiple landing pages and data-driven D3.js visualizations for clients.

Projects

MapMoji

A mobile-first event discovery platform that allows users to scan real-world flyers and instantly turn them into live map pins. Built with React Native and Expo, it leverages AI to extract event data from images using OpenAI-powered LLMs, and geolocates events with Google Maps and Mapbox APIs.

  • Designed a scalable, containerized backend with PostgreSQL, Redis, and a multi-service architecture using Docker Compose.
  • Implemented real-time WebSocket updates for map interactions and event publishing.
  • Used text embeddings to enable intelligent search and filtering across thousands of events.
  • Created a gamified leveling system to encourage user engagement, built with modular microservices.
  • Developed custom image parsing logic and integrated cloud storage with DigitalOcean Spaces for fast, reliable event flyer handling.

Education

Software Engineering Immersive

General Assembly | Denver, CO

Nov 2020 - Feb 2021

Completed 500+ hours of hands-on training in full stack web development. Built real-world applications using modern technologies and agile workflows.