AJ Kopczynski
Austin,TX
Summary
Passionate and knowledgeable Senior Engineer with robust background in designing and implementing high-performance software solutions. Proven track record in leading complex projects and driving innovative approaches that enhance system reliability, resiliency and efficiency. Demonstrated expertise in software and infrastructure architecture and cross-functional team leadership.
Overview
15
15
years of professional experience
Work History
Senior Principal Software Engineer
PNC Bank
Austin, TX
06.2025 - Current
- Led cross-functional teams to design and implement scalable software solutions for myriad needs. Teams consisted of 5 - 10 people.
- Mentored junior and mid-level engineers, fostering skill development and knowledge sharing within the engineering department.
- Designed and implemented 2 critical distributed applications entirely on my own as the sole developer, engineer and operations administrator.
- Served as sole Infrastructure Architect for portfolio of over 30 applications. This includes all new applications as well as modifications to existing applications.
- Performed intake and solutioning to business representatives for new project initiatives.
- Provided cost/time estimates to business for engineering needs.
- Modernized and refactored a legacy monitoring software solution (API and UI).
Technology Engineer Sr
PNC Bank
Austin, TX
06.2019 - 06.2025
- Led the ChatOps and Observability Development and Engineering teams as the Senior Engineer. These teams were responsible for the design, build, and long term support of all software solutions in our group. Including SLDC management, Infrastructure design and maintenance, all CI/CD operations, security and performance.
- Designed and implemented a Python (Django/DRF) integration layer between the chat platform and other internal systems including the CMDB, Monitoring software, and vendor tooling.
- Wrote multiple Golang software packages as plugins to the chat platform, augmenting the chat tools' functionality.
- Managed all Vulnerabilities and Security hardening, including regular OS patching.
- Performed Performance monitoring and tuning for all applications in portfolio.
- Wrote Ansible to encompass an entire Application Re-pavement effort for Resiliency program.
- Defined Disaster Recovery procedure and managed recovery efforts for applications, including simulated events annually.
- Managed vendor relationships. Often times as sole point of contact.
- Wrote VM and container based CI/CD pipelines to maximize resiliency.
- Handled all internal governance and policy adherence for the application. Ensured design is up to date and all design patterns are documented and meeting policy.
Senior Systems Engineer
Endurance International Group Holdings Inc
Austin, TX
01.2012 - 03.2019
- Core contributor to software used to perform hosting platform migrations. Directly wrote/contributed to the account file move process and the DNS switch process. These processes were used by the larger software via a task queue system to execute the migrations in steps.
- Developed automation for regular hardware security scans on thousands of bare metal linux servers, enhancing security compliance.
- Designed and implemented a business reporting system for migration efforts. Consisted of Bash scripts and SQL triggers to export summarized data to a secure, offsite database as well as Grafana to visualize the data and quickly create dashboards.
- Maintained and re-built multiple large-scale (250k+ zones) DNS (Bind) clusters.
- Designed and created a new DNS cluster using Bind/MyDNS for a DNS forwarding setup in conjunction with software I wrote to seamlessly flip what cluster is serving a DNS record without nameserver change.
- Maintained and re-built multiple large-scale (250k+ zones) DNS (Bind) clusters.
- Created a new DNS cluster using Bind/MyDNS for a DNS forwarding setup, enabling seamless transitions between clusters serving DNS records without requiring a nameserver change.
Senior Linux System Administrator
Endurance International Group Holdings Inc.
Austin, TX
12.2016 - 10.2017
- Mentored junior administrators, enhancing their skills in system management and troubleshooting.
- Identified recurring and common customer issues, created bash and Python scripts to automate solution implementation.
- Managed Xen VM Compute platform, migrating and resizing VMs per customer requests while provisioning new IPs and network interfaces.
- Managed system upgrades and migrations, ensuring minimal downtime and disruption to services.
Support Manager
Endurance International Group Holdings Inc.
Austin, TX
06.2015 - 11.2016
- Led support team to enhance customer satisfaction and resolve complex issues efficiently.
- Implemented new support ticketing system, increasing response time and tracking efficiency.
- Analyzed customer feedback to identify trends and drive improvements in service delivery.
- Assisted support team with technical issue resolution.
Senior Support Technician
Endurance International Group Holdings Inc.
Austin, TX
01.2013 - 06.2015
- Managed escalated customer inquiries, ensuring timely and effective resolutions to maintain service quality standards.
- Created automations to resolve common contact causes.
- Created tooling to assist other technicians with identifying and resolving common issues.
- Led troubleshooting efforts for complex technical issues, improving resolution times and customer satisfaction.
- Developed and implemented process improvements, increasing operational efficiency within support workflows.
- Mentored junior technicians, enhancing team skills and knowledge-sharing across support functions.
Education
High School Diploma -
Bastrop High School
Bastrop, TX2012
Skills
- Python/Golang Software Development
- Software Architecture/Design
- Restful API frameworks
- CI/CD pipelines
- Container technologies
- Distributed applications
- Infrastructure architecture
- Server administration
- Configuration management
- Database management
- Unit testing
- Observability platforms
- Scripting
Key Technologies
- FastAPI, Django, Flask
- MySQL, PostgreSQL
- RHEL/CentOS/Debian
- Celery
- Kafka, RabbitMQ, Redis
- Bash, Python, Golang
- Grafana, Prometheus, Thanos
- Docker, Podman, Kubernetes, OCP
Timeline
Senior Principal Software Engineer
PNC Bank
06.2025 - Current
Technology Engineer Sr
PNC Bank
06.2019 - 06.2025
Senior Linux System Administrator
Endurance International Group Holdings Inc.
12.2016 - 10.2017
Support Manager
Endurance International Group Holdings Inc.
06.2015 - 11.2016
Senior Support Technician
Endurance International Group Holdings Inc.
01.2013 - 06.2015
Senior Systems Engineer
Endurance International Group Holdings Inc
01.2012 - 03.2019
High School Diploma -
Bastrop High School