DUSTIN VANKRIMPEN
Software Engineer - Fullstack and 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

Languages: Kotlin, Java, Go, TypeScript, SQL (PostgreSQL, MySQL), GraphQL
Frameworks: Spring Boot, Spring Security, React, Node.js
Cloud and DevOps: AWS (Lambda, S3, RDS, SQS), SST, Terraform, Neon, Flyway, Docker, GitHub Actions, Azure Pipelines
Architecture: Multi-Tenant SaaS, OAuth2/JWT, Redis Caching, RESTful and Event-Driven Design


PROFESSIONAL EXPERIENCE

Software Developer, UFP Industries
Grand Rapids, MI | Nov 2023 - Present
- 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 and 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 and Mentor, AD Solutions
Remote | May 2024 - Aug 2025
Part-time contract, concurrent with current role.
- Customer Billing Portal: Set the architecture and technical direction for a Spring Boot and React billing portal, mentoring student developers through design and code reviews.
- Infrastructure and 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)
Remote | May 2022 - Nov 2023
- Performance Tuning: Cut response times 25-50% on the slowest endpoints of an enterprise U.S. Patent and 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
Remote | Jun 2021 - May 2022
Part-time on the software architecture team through summer; moved to full-time product engineering Sep 2021 to May 2022.
- API Performance at Scale: Profiled and optimized high-traffic REST endpoints on a wellness platform operating at 75B+ API calls per year, cutting response times approximately 80% on targeted endpoints via missing-index fixes, query simplification, and caching of stable hot paths.

Student Researcher, Ferris State University
Remote | Jun 2021 - May 2022
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. in Digital Media Software Engineering, Ferris State University
Graduated 2022 | GPA 4.0 | Summa Cum Laude