# Aleš Plšek

> Resilience and Chaos Engineering at Netflix

Location: San Francisco Bay Area, United States
Profile: https://flows.cv/ale

Building highly scalable distributed systems and cloud infrastructures, performance analysis and concurrent-programming.
		
Extensive programming expertise in Golang, Java, Real-time Java, C.


Howto pronounce Aleš : [alesh]

## Work Experience
### Staff Software Engineer @ Netflix
Jan 2026 – Present

### Senior Software Engineer @ Netflix
Jan 2019 – Jan 2026 | Los Gatos
Leading Netflix's innovation in the space of Resilience Engineering and Chaos Engineering.

Revolutionizing rapid and safe delivery of software to production.

### Principal Software Engineer @ Apple
Jan 2018 – Jan 2019 | Cupertino, CA
Cloud Infrastructure

### Principal Software Engineer @ Upthere
Jan 2014 – Jan 2018 | Palo Alto, CA
Building the cloud infrastructure. Backend team.

Startup acquired by Western Digital.

### OSG SOA Release Manager @ Standard Performance Evaluation Corporation
Jan 2012 – Jan 2014 | Redwood Shores, CA
OSG SOA Release Manager and Representative for Oracle.

Contributed to Oracle’s SPECJavaEnterprise world record results.

Further involved in SPEC Java Enterprise development and SPEC-Cloud.

### Senior Member of Technical Staff @ Oracle
Jan 2011 – Jan 2014 | Redwood Shores, CA
FullStack performance of core products (JVM/GC, Appservers, OS, DB, Network), Java profiling and tuning, heap analysis, internal and SPEC benchmarks development.

Developing benchmarks and extreme workloads driving each product and the full stack to its edge, identifying and resolving perf. and concurrency bottlenecks. Extensive track record of optimizations and scalability improvements.

Extreme JVM and GC tuning, profilers, perf tools, scripting to obtain/analyze all the possible characteristics of the system. Cooperating with the product teams on performance patches. 
Thread/heap dumps analysis; source code analysis across product boundaries; OS, DB and Network; various platforms (Linux, Solaris, ExaData, ExaLogic, commodity servers).

### Postdoctoral Researcher @ Purdue University
Jan 2009 – Jan 2011 | West Lafayette, IN
In charge of Safety-Critical Java (SCJ) project, we provided first open-source implementation of SCJ - including SCJ VM, TCK and benchmarks. 

Lead a team of 3 graduate students implementing a new safety-critical Java standard. Supervised the work but also actively contributed to the development of the VM, TCK, benchmarks, and additional tool support based on Java 7 annotations. After joining the project, we optimized the VM and achieved 30% performance improvement and deployed the system both on x86 and SPARC-based embedded platforms. We regularly compared the performance of our VM with RT GC-based VMs, RTSJ VMs, vanilla VMs. Responsible for communication with the Expert Group developing the standard. 

See the oSCJ project webpage: http://www.ovmj.net/oscj/


## Education
### PhD in Computer Science
University of Lille 1 Sciences and Technology

### M.S. in Computer Science
Charles University


## Contact & Social
- LinkedIn: https://linkedin.com/in/plsek
- Portfolio: http://aplsek.github.io/
- Portfolio: http://rtjava.blogspot.com
- Portfolio: http://www.czechschoolofcalifornia.com

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Source: https://flows.cv/ale
JSON Resume: https://flows.cv/ale/resume.json
Last updated: 2026-04-12