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DUSTIN VANKRIMPEN
SOFTWARE ENGINEER / FULLSTACK & MICROSERVICES
Grand Rapids, MI // (616) 633-3458 // me@dustinvk.com
dustinvk.com // github.com/dustinvk // linkedin.com/in/dustin-vankrimpen
Summary

Full-stack engineer with 5 years building enterprise applications in Java / Kotlin, Spring, and React — strongest in backend architecture and distributed systems. Currently helping drive a multi-tenant SaaS modernization and building its high-precision pricing engine and AI-driven booking validation.

Technical Skills
/LanguagesKotlin, Java, Go, TypeScript, SQL (PostgreSQL / MySQL), GraphQL
/FrameworksSpring Boot, Spring Security, React, Node.js
/Cloud & DevOpsAWS (Lambda, S3, RDS, SQS), SST, Terraform, Neon, Flyway, Docker, GitHub Actions, Azure Pipelines
/ArchitectureMulti-Tenant SaaS, OAuth2 / JWT, Redis Caching, RESTful & Event-Driven Design
Professional Experience
Software Developer — UFP Industries
Nov 2023 – Present · Grand Rapids, MI
  • SaaS Modernization: Core engineer on the team migrating a legacy international marketplace to a multi-tenant SaaS 2.0 platform; contribute to design reviews and build the tenant-isolation model (PostgreSQL RLS).
  • Real-Time Pricing Engine: Designed and shipped a high-precision pricing engine that factors live logistics rates, import/export duties, and transaction fees into per-order quotes, eliminating manual price-correction work for trading reps.
  • AI Validation Pipeline: Built a near-real-time validation service that uses AI models to verify logistics bookings against shipping rules, reducing manual entry errors on international orders by an estimated ~35% per the logistics team's review tracking.
  • Security & Auth: Hardened platform auth with a custom OAuth2/JWT flow on Spring Security using HTTP-only cookies, replacing a brittle session approach and closing several CSRF/XSS exposure points.
  • Production Ownership: Owned the 1.0 environment and AWS infrastructure end-to-end (Lambda, S3, RDS, SQS); on-call for production incidents and primary point of contact for platform reliability.
Technical Consultant & Mentor — AD Solutions
May 2024 – Aug 2025 · Remote
Part-time contract, concurrent with current role
  • Customer Billing Portal: Set the architecture and technical direction for a Spring Boot + React billing portal, mentoring student developers through design and code reviews.
  • Infrastructure & Delivery: Provisioned and configured the on-prem Ubuntu VM servers hosting the application, and built GitHub Actions pipelines for automated build, test, and deploy — replacing manual multi-step releases with single-PR pushes.
Java Developer — BeyondSOA Solutions (Subcontracted to SAIC)
May 2022 – Nov 2023 · Remote
  • Performance Tuning: Cut response times 25–50% on the slowest endpoints of an enterprise U.S. Patent & Trademark Office application through asynchronous processing and MySQL query and index optimization.
  • Reliability: Resolved long-standing production defects affecting examiner workflows and added regression tests to prevent recurrence.
Software Engineer Intern — Virgin Pulse
Jun 2021 – May 2022 · Remote
Part-time on the software architecture team through summer; moved to full-time product engineering Sep 2021 – May 2022.
  • API Performance at Scale: Profiled and optimized high-traffic REST endpoints on a wellness platform operating at 75B+ API calls/year, cutting response times ~80% on targeted endpoints via missing-index fixes, query simplification, and caching of stable hot paths.
Student Researcher — Ferris State University
Jun 2021 – May 2022 · Remote
Part-time research role, concurrent with Virgin Pulse internship
  • HealthTech Research: Built the backend for a pharmacy MVP scoped directly with independent pharmacies, integrating Epic's FHIR APIs via a custom OAuth2 / MyChart login for patient-record access.
Education
B.S. Digital Media Software Engineering — Ferris State University
2022 · GPA 4.0
Summa Cum Laude