Amigoscode

πŸš€ The 2026 Junior-to-Senior Developer Roadmap is here

The gap between junior and senior developers has never been bigger and it’s not because of talent.

It’s because of clarity.

Senior engineers know exactly what to learn, why it matters, and how the pieces fit together.

Juniors often just jump from tutorial to tutorial without a long-term plan.

That’s why I created the 2026 Junior-to-Senior Roadmap. A clear, structured path covering:

πŸ”Ή Programming languages that matter in 2026
πŸ”Ή Web services, APIs, and security
πŸ”Ή Relational + NoSQL databases
πŸ”Ή Cloud, CI/CD, and testing
πŸ”Ή System design fundamentals
πŸ”Ή AI tools every modern developer must master


It’s the same framework I use when training engineering teams around the world.

If you want to stay ahead in 2026 and grow with new insights, tutorials, and deep-dives on topics from this roadmap…

πŸ‘‰ Join the blog for free: join-newsletter.amigoscode.com/

Level up your skills. Stay sharp. Keep learning.

2026 belongs to the developers who prepare now

#programming #coding #systemdesign

2 weeks ago | [YT] | 543

Amigoscode

What is the output?

String s1 = "Hello";
String s2 = new String("Hello");
System.out.println(s1 == s2);
System.out.println(s1.equals(s2));

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1 month ago | [YT] | 64

Amigoscode

The best code is no code at all.

It has no bugs, requires no maintenance, and is infinitely scalable. Before you write, ask if you can avoid it.

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1 month ago | [YT] | 209

Amigoscode

Stop talking about the Gang of Four. Their book was published in 1994. Software has changed. Here are 10 modern design patterns you actually need to know.

While Singleton and Factory are still useful, the challenges of distributed systems, cloud computing, and massive datasets have given rise to a new set of patterns.

β†’ 1. The Strangler Fig Pattern

- Incrementally migrate a legacy system by gradually replacing pieces with new applications and services.

- When to use it: Large monolithic apps that are too risky to replace all at once.

β†’ 2. The Sidecar Pattern

- Deploy a helper container alongside your main application container for logging, monitoring, or proxying.

- When to use it: In microservices or containerized environments (like Kubernetes) to add functionality without touching code.

β†’ 3. CQRS (Command Query Responsibility Segregation)

- Separate models for reading data (queries) and writing data (commands).

- When to use it: Complex domains where read and write patterns differ significantly.

β†’ 4. Event Sourcing

- Store a sequence of state-changing events instead of current state. Current state is derived by replaying events.

- When to use it: When you need a full audit trail or support complex temporal queries.

β†’ 5. The Saga Pattern

- Manage long-running transactions in distributed systems without two-phase commit. Each transaction has a compensating transaction.

- When to use it: For managing data consistency across microservices.

β†’ 6. The Backends for Frontends (BFF) Pattern

- Create a separate backend service for each frontend type (web, mobile). Aggregates and formats data specifically for that frontend.

- When to use it: Multiple frontends with different UI requirements.

β†’ 7. The Circuit Breaker Pattern

- Monitor failures when calling a remote service. If failures exceed a threshold, trips and fails immediately without contacting the service.

- When to use it: To prevent cascading failures throughout your system.

β†’ 8. The Leader Election Pattern

- Elect one instance as the "leader" to perform a specific task in a distributed system with multiple instances.

- When to use it: When only one instance should perform a particular action at a time.

β†’ 9. The Publisher/Subscriber (Pub/Sub) Pattern

- Publishers send messages to a topic; subscribers receive messages without publishers knowing who they are.

- When to use it: To decouple services and enable asynchronous communication.

β†’ 10. The Throttling Pattern

- Control service consumption by limiting the rate of requests to prevent overload.

- When to use it: To protect your APIs from abuse or overload.

Which of these are you using in your projects? What other modern patterns should be on this list? Comment below!


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1 month ago | [YT] | 105

Amigoscode

Coding is the easiest part remember.

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1 month ago | [YT] | 395

Amigoscode

Is your dream job turning into a nightmare? The code is the easy part. It's the culture that burns you out. Watch out for these 8 red flags of a toxic tech team.

No amount of free snacks or ping pong tables can make up for a toxic work environment. Here's how to spot one before it's too late.

β†’ 1. The Blame Game
- When something goes wrong, the first question is "Who did this?" not "How do we fix it and prevent it from happening again?"
- This creates a culture of fear where no one wants to take risks or admit mistakes.

β†’ 2. The Hero Culture
- The same one or two people are always "saving the day," working late, and fixing all the problems.
- This is not sustainable. It's a sign of poor planning, knowledge silos, and a team that is constantly firefighting.

β†’ 3. Constant Urgency
- Everything is a top priority, everything is due yesterday. There's no time for planning, refactoring, or paying down technical debt.
- This leads to burnout and low-quality work.

β†’ 4. Information Silos
- Knowledge is power, and some people hoard it. It's hard to get a straight answer, and documentation is non-existent.
- This makes it impossible for new team members to be effective and creates dependencies on a few key people.

β†’ 5. No Psychological Safety
- You're afraid to ask "stupid" questions, challenge a senior developer's opinion, or propose a new idea.
- Innovation dies in an environment where people are afraid to speak up.

β†’ 6. Meetings After Meetings
- Your calendar is packed with meetings, but nothing ever seems to get decided.
- This is a sign of a lack of trust and an inability to empower individuals to make decisions.

β†’ 7. The "That's Not My Job" Mentality
- Team members are unwilling to help each other out or take on tasks that are outside of their narrow job description.
- This creates a lack of ownership and a "not my problem" attitude.

β†’ 8. High Turnover
- People are constantly leaving the team or the company. This is the biggest red flag of all.
- Good people don't leave good jobs.

Have you experienced any of these? What's your advice for someone stuck in a toxic team? Share your thoughts in the comments.

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1 month ago | [YT] | 113

Amigoscode

Ever feel like your code is a simple, elegant cat behind the wheel…

…until you look at the dependencies holding it all together? πŸ±πŸ“¦

This meme hits a little too close to home.

We often think our projects are lightweight, but every package, framework, and library adds complexity (and risk).

πŸ‘‰ A few reminders for all developers:
- Audit dependencies regularly.
- Don’t install a package for a one-liner you can write yourself.
- Keep things simple where possible. Future you will thank you.

At the end of the day, the less baggage your code has, the smoother the ride πŸš€

How do you keep dependency bloat under control?

3 months ago | [YT] | 82

Amigoscode

Will AI take our jobs like Mark said?

5 months ago | [YT] | 33

Amigoscode

What manages the lifecycle of Spring Beans?

5 months ago | [YT] | 131

Amigoscode

1. What does it mean when we say Java is 'pass-by-value'?

5 months ago | [YT] | 88