Java
https://github.com/lzyzsd/Awesome-RxJava - Awesome-RxJava
Blog
https://github.com/kilimchoi/engineering-blogs - A curated list of engineering blogs
Architecture
https://github.com/heynickc/awesome-ddd - A curated list of Domain-Driven Design (DDD), Command Query Responsibility Segregation (CQRS), Event Sourcing, and Event Storming resources
https://github.com/binhnguyennus/awesome-scalability - The Patterns of Scalable, Reliable, and Performant Large-Scale Systems
Management
https://github.com/LappleApple/awesome-leading-and-managing - Awesome List of resources on leading people and being a manager. Geared toward tech, but potentially useful to anyone
Cryptography
https://github.com/wilsonfreitas/awesome-quant - A curated list of insanely awesome libraries, packages and resources for Quants (Quantitative Finance)
Others
https://github.com/terkelg/awesome-creative-coding - Creative Coding: Generative Art, Data visualization, Interaction Design, Resources