Cavin

Software Engineer | @getpostman Student Leader #APIs

[Cavin @devcavin]

From Endpoints to Intelligence: APIs in the Age of Autonomous Agents #Postman #API

[Cavin @devcavin]

@gozkybrain4u Because good is usually built on intention, discipline, and a guided framework, while harmful behavior often emerges when structure breaks down and impulse takes over

[Harshit Anand @devbyharshit]

@themishra4402 Bro has a 9-5 job, a side hustle, AND a life? Nah. This man only pulls up to GitHub when he’s drunk on a Friday night, pushes 47 commits at 2AM, then spends the weekend praying nothing breaks.
Absolute chaos goblin energy. Respect. 🫡

[Cavin @devcavin]

@gozkybrain4u @drharveee I prefer milk

[Cavin @devcavin]

@lxmwaniky Another day to grind harder 💪

[Cavin @devcavin]

@gozkybrain4u I agree to disagree;

[Cavin @devcavin]

I use Java & Kotlin btw

[Jakub Chrzanowski 🥑 @hszanowski]

I use Kotlin btw

[Christine @christine_12_me]

https://t.co/Jf3IJJBcL0

[Cavin @devcavin]

@christine_12_me @StanleyMasinde_ Checkout my GitHub repos, dropping blogs soon https://t.co/R1pK49nMOz

[Cavin @devcavin]

I have hit production on a Friday: guys include me in your prayers 🙏

[Cavin @devcavin]

After long attempts and failures 😭 the web service is finally live 🤗

[John Doe @StanleyMasinde_]

When you realise that companies are still hiring junior and midlevel engineers.

[Cavin @devcavin]

@_devJNS 😂😂 robbery with no violence

[Cavin @devcavin]

I gave this one my all, but it didn’t go through. Still grateful for the opportunity and the learning that came with it.

Back at it again. I’m open to roles in React, Spring Boot, or Network Technician. Connections and referrals are appreciated.

#OpenToWork

[Ayaan 🐧 @twtayaan]

When you're new to DevOps 😭

[Java @java]

The new VDC 2025 Survey confirms Java tops enterprise use, cloud-native builds, and AI developer productivity with 73 billion active JVMs and counting. 📈

Check out the VDC Research report to learn more: https://t.co/OP7a2ShCrz

[SumitM @SumitM_X]

As a Java developer,

Please learn:

1. Core Java Mastery
- OOP principles (SOLID, DRY, KISS)
- Generics, Lambda expressions, Functional interfaces
- Java Streams API (map/reduce, collectors)
- Java Collections framework
- Java Reflection API
- Exception handling

2. Multithreading & Concurrency
- Thread synchronization, Executors, Locks
- Fork/Join framework
- Understanding of race conditions, deadlocks, and thread pools
- Concurrency utilities (java.util.concurrent)

3. Design Patterns & Architecture
- Common design patterns (Singleton, Factory, Builder)
- Architectural patterns (MVC, - Microservices, Event-Driven Architecture)
- Dependency Injection (DI), Inversion of Control (IoC)

4. Java Memory Management
- Garbage Collection (G1, CMS, ZGC)
- JVM heap and stack management
- Profiling tools (JProfiler, VisualVM)
- Analyzing memory leaks, thread dumps, and heap dumps

5. Classloaders and Reflection
- Custom class loaders
- Dynamic class loading
- Reflection for runtime behavior manipulation

6. Spring Framework & Spring Boot
- Spring Core (Dependency Injection, AOP)
- Spring Boot (Auto-configuration, Microservices support)
- Spring Security (OAuth2, JWT)
- Spring Data (JPA, Hibernate integration)
- Spring Cloud (Netflix OSS, Circuit Breakers)

7. Microservices Architecture
- Service discovery (Eureka, Consul)
- Load balancing, distributed tracing, and circuit breaking
- API Gateway (Zuul, NGINX)
- Asynchronous communication with Kafka, RabbitMQ

8. RESTful Web Services
- REST principles, building APIs
- JSON/XML handling
- API versioning, OpenAPI/Swagger documentation

9. Java I/O and NIO
- Blocking vs non-blocking I/O (NIO)
- Asynchronous I/O, channels, selectors
- File handling, serialization and deserialization

10. Reactive Programming
- Project Reactor, RxJava
- Event-driven architecture, backpressure
- Reactive streams, non-blocking IO

11. JPA/Hibernate
- ORM principles, entity relationships
- Lazy vs eager loading
- Caching strategies, query optimization

12. Database Optimization
- SQL optimization, indexing, and transactions
- NoSQL databases (MongoDB, Cassandra)
- ACID principles, CAP theorem

13. Distributed Systems
- Consistency, availability, partitioning (CAP)
- Event sourcing, CQRS (Command Query Responsibility Segregation)
- Distributed caching (Redis, Hazelcast)
- Tools: Apache ZooKeeper, Consul, etcd

14. Testing & TDD/BDD
- Unit testing (JUnit, Mockito)
- Integration and functional testing
- Behavior-driven development (Cucumber)

15. CI/CD & DevOps
- Continuous integration (Jenkins, CircleCI)
- Containerization with Docker
- Orchestration with Kubernetes
- Source control (Git), versioning, branching strategies

16. Performance Tuning & Optimization
- JVM tuning, garbage collection optimization
- Caching strategies, load balancing
-Tools for profiling and monitoring (Prometheus, Grafana)

17. Security
- Authentication/authorization (OAuth2, JWT)
- Secure coding (OWASP guidelines)
- Encryption (TLS/SSL), CSRF/XSS prevention

18. Cloud Platforms & API Gateways
- AWS, Azure, GCP deployment
-API Gateway (Zuul, NGINX) for rate-limiting and routing
- Cloud-native microservices tools

19. Logging & Monitoring
- Centralized logging (ELK Stack, Graylog)
- Distributed tracing (Jaeger, Zipkin)
- Application Performance Monitoring (APM)

20. Caching Mechanisms
- In-memory caching (Ehcache, Caffeine)
- Distributed caching (Redis, Memcached)
- Cache invalidation strategies (LRU, LFU)

21. Build Tools
- Maven and Gradle for dependency management
- Multi-module project handling
- Continuous delivery pipelines

22. Message Queuing Systems
- Kafka, RabbitMQ for event-driven microservices
- Pub/Sub models, distributed message brokers

[Java Guides @GuidesJava]

Choose the right collection:

[Matt🍫 @jbmillenial]

So, I’m building an app and I’m locked out because I forgot the admin credentials😂😂😂

[Cavin @devcavin]

@Tech_girlll COBOL is learnable. But the real challenge is earning trust to work on critical systems that can't afford mistakes

[Cavin @devcavin]

@hey_its_ashu @hiarun02 I knew I was belonging to the category of those who aren't sure of their life. Damn! 🙈