# Trevor Vossberg

> Ex Senior Software Engineer at CLEAR (clearme.com)

Location: Austin, Texas Metropolitan Area, United States
Profile: https://flows.cv/trevorvossberg

As a Senior Software Engineer at CLEAR, my expertise in REST API development and microservices integration has been pivotal in deploying robust, scalable solutions for biometric COVID monitoring. By leading the Project Usher, I have honed a deep understanding of Java and Python within a FedRAMP environment, ensuring secure and efficient service delivery to our customers.

In collaboration with cross-functional teams, we successfully interconnected microservices utilizing technologies such as Kafka, Redis, and AWS Lambda. My mentoring of junior engineers has both fortified the team's capabilities and reinforced my commitment to fostering a knowledge-sharing culture. This experience, coupled with my proficiency in SQL and communication, underscores my dedication to developing systems that are not just performant but also fault-tolerant and user-centric.

## Work Experience
### Senior Software Engineer @ CLEAR (clearme.com)
Jan 2019 – Jan 2022 | Austin, Texas, United States
Project Usher - As lead backend developer, designed, architected, monitored, and deployed extensible HATEOAS inspired-REST backend for COVID monitoring using biometric facial recognition

• Close integration work with the frontend team across multiple customers
• Interconnected Java microservices using PostgreSQL, Kafka, Redis, Amazon Simple Workflow Service (SWF), and AWS Lambda in FedRAMP environment
• Mentored and onboarded junior engineers to AWS SWF and Lambda Functions
• Python end to end tests
• Designed terraform to interconnect and deploy AWS Lambda Functions with SWF microservices
• Modified Jenkins pipelines as needed to enable deployments

### Senior Software Developer @ project44
Jan 2018 – Jan 2019 | Chicago
Logistics Industry, AWS cloud, Java, Spring, Microservices, PostgreSQL

• Installed Sleuth tracing framework to trace HTTP requests throughout dozens of microservices
• Implemented Graphana alerts to monitor services
• Implemented PostgreSQL-backed microservice on AWS to store and encrypt customer credentials
• Created Java microservice to poll for shipment updates and write them to a Kafka topic

### Software Developer @ IBM
Jan 2016 – Jan 2018
Packed Storage- Updated disk storage solution improving performance via multiple objects per file
• Implemented unclean shutdown and corruption detection regression tests in Python
• Corrected clean and unclean shutdown handling and memory management issues
• Led effort to handle data integrity issues on a more granular layer improving storage reliability
• Developed throttling of background disk compaction activity to mitigate performance variability
• Created metrics to allow for proactive monitoring of compaction activity by support
Fanout- Optimized storage of multiple copies of objects and minimize network usage
Designed, led, and completed majority of implementation
• Handled impacts at all layers of the stack
• Used gathering writes and batching to improve performance
• Gained experience with changing requirements
• Took initiative to work with the support team to diagnose problems and prioritize and design solutions
Disk Lifecycle Management v2–Updated notification interface for new set of DLM events
• Consumed new HTTP and RabbitMQ API to communicate disk state changes between processes
• Adapted Python regression tests for new API

### Software Developer @ Cleversafe
Jan 2013 – Jan 2016 | Chicago


## Education
### Bachelor's degree in Applied Mathematics
Illinois Institute of Technology


## Contact & Social
- LinkedIn: https://linkedin.com/in/trevor-vossberg-730040152

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Source: https://flows.cv/trevorvossberg
JSON Resume: https://flows.cv/trevorvossberg/resume.json
Last updated: 2026-03-29