Josiah Adenegan is a SysDev Engineer and AWS Certified DevOps Engineer — Professional with nine years of experience building and operating cloud-native systems from code commit to production. He combines hands-on software engineering with SRE practices, using Concourse/Jenkins, Terraform/Ansible and Kubernetes/EC2 to deliver highly available platforms instrumented by Prometheus, Grafana and the ELK stack. His career includes senior SRE and DevOps roles at HelloFresh and GfK and he now applies that expertise at AWS in Berlin. An active contributor to open-source .NET tooling, he helped modernize PdfSharpCore by integrating ImageSharp and improving PDF read/write flows—showing a knack for bridging legacy libraries to modern runtimes. He enjoys learning new tools and building pipelines that make complex deployments repeatable and observable. Collected graduate training in cybersecurity and computer science informs his operational focus on resilience, compliance and secure infrastructure design.
8 years of coding experience
12 years of employment as a software developer
B. Tech Computer Science and Engineering, B. Tech Computer Science and Engineering at Ladoke Akintola University of Technology
Master’s Degree Computer Science, Master’s Degree Computer Science at University of Ibadan
Master of Science - MS Cyber Security, Master of Science - MS Cyber Security at EC-Council University
Port of the PdfSharp library to .NET Core - largely removed GDI+ (only missing GetFontData - which can be replaced with freetype2)
Role in this project:
Full-stack Developer
Contributions:26 commits, 13 PRs, 42 comments in 4 years 9 months
Contributions summary:Josiah primarily contributed to the PdfSharpCore library, focusing on .NET Core compatibility and integration with external libraries. They updated the project to support the ImageSharp library for image handling and also fixed PDF read issues. The user implemented default implementations for ImageSource and FontResolver, and they added pipelines for MigraDoc and PdfSharpCore charting. Additional efforts included updating package descriptions and configuring release settings.
Contributions:80 pushes, 27 branches in 6 years 8 months
dotnetnet-corec-sharpcsharpdotnet-core
Find and Hire Top DevelopersWe’ve analyzed the programming source code of over 60 million software developers on GitHub and scored them by 50,000 skills. Sign-up on Prog,AI to search for software developers.