# Chad Koslovsky
Product Engineer - Enterprise · product engineering for trusted APIs
Loveland, Colorado · chad@koslovsky.xyz

## Target
Product Engineer - Enterprise at WorkOS, Inc. · Remote, USA & Canada

## Profile
I design and ship product systems where permissions, data boundaries, and developer experience have to work together. I bring full-stack implementation, API and workflow judgment, and first-hand ownership of the production details that make infrastructure usable and trustworthy.

## Relevant strengths
- Full-stack product engineering
- Technical leadership and collaboration
- Platform engineering and operations
- Data systems and reliability
- Applied AI and automation

## Relevant experience
- **End-to-end product platform:** Designed and built a Next.js, TypeScript, PostgreSQL, and containerized platform spanning CRM, support, scheduling, meetings, billing, analytics, infrastructure telemetry, and AI-assisted workflows.
- **Founder-led product delivery:** Earned Upwork's Top Rated badge and ranked among its top 10% of freelancers before building a referral-based practice. Usually served as the only engineer or lead engineer, helping teams ship products and fundraising systems used in raises totaling millions of dollars and managing smart contracts that held millions in value.
- **Acquired Amazon reseller SaaS:** Designed, built, and operated an Amazon reseller SaaS product with marketplace ingestion, repricing automation, analytics, account workflows, and support built directly into the application.
- **Datacenter and platform operations:** Led end-to-end technical readiness and infrastructure remediation for annual SOC 1 and SOC 2 audits under SSAE 18 at a 30,000-square-foot commercial data center in Fort Collins serving enterprise clients, maintaining compliance. Served as the primary technical point of contact for external auditors, translating infrastructure architecture, access controls, and failover protocols into audit artifacts. Owned disaster recovery and backup verification protocols, including automated testing schedules, and drafted and enforced engineering SOPs aligned with audit control objectives; the organization passed every year I led the process. Led the NOC team and served as the primary on-call engineer for escalations while designing and managing monitoring systems. Modernized workloads into Docker, Swarm, and Kubernetes platforms and codified deployment with Terraform, Ansible, and CI/CD. Migrated legacy monitoring from Nagios to Zabbix through a multi-step cutover that included a severely unhealthy legacy database environment costing roughly $10,000 per month in AWS charges.

## Focus for this application
The relevant thread is building high-leverage primitives that make complex systems easier for other developers and customers to use correctly.

## Links
- Resume: https://chad.koslovsky.xyz/resume/chad-koslovsky-resume.pdf
- LinkedIn: https://www.linkedin.com/in/chadkoslovsky
- GitHub: https://github.com/Ravonus