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https://github.com/af2b/af2b

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# Andre Borba

**Software Engineer | Functional Programming Specialist | Clojure โ€ข Haskell**



> *"Finding simplicity in complexity through functional programming and clean architecture."*



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## ๐Ÿš€ Currently Building



Focused on backend mastery and evolving towards Tech Leadership:



- **Backend Systems**: High-concurrency services with Clojure, distributed architectures, event-driven design

- **GenAI Engineering**: Production-ready AI backends with Python, LangChain, and RAG

- **Modern Fullstack**: TypeScript/React with strongly-typed contracts

- **Architecture Excellence**: Clean Architecture, DDD, Hexagonal patterns

- **Leadership Growth**: Mentorship, design reviews, cross-team alignment



This journey reflects my commitment to backend mastery and leadershipโ€”where engineering excellence meets pragmatic delivery.



---



## ๐ŸŽ–๏ธ Achievements & Publications



**๐Ÿ“š Technical Writing & Knowledge Sharing**

- [**Clojure Is Awesome Series**](https://dev.to/borba/clojure-is-awesome-5f6k) - *English* | Comprehensive series exploring Clojure's elegance and power - Dev.to, 2025

- [**The Importance of Adhering to RFCs and Best Practices When Building REST APIs**](https://medium.com/beyondlabsey/a-import%C3%A2ncia-da-ader%C3%AAncia-aos-rfcs-e-boas-pr%C3%A1ticas-na-constru%C3%A7%C3%A3o-de-apis-restful-dd5d62411ad9) - *Portuguese* | Deep dive into API design standards - Medium, 2025

- [**The Importance of Code Style: Elevating the Quality of Your Code**](https://medium.com/@andre.borbaaf2b/a-import%C3%A2ncia-do-code-style-elevando-a-qualidade-do-seu-c%C3%B3digo-a3b64000ca8a) - *Portuguese* | Code quality and maintainability practices - Medium, 2024

- [**Surfing with FP Java**](https://dev.to/borba/surfing-with-fp-java-the-beginning-4dj7) - *English* | Deep dive into Functional Interfaces in Java



**๐Ÿ† Professional Impact**

- **Production Systems**: Architected and delivered scalable backend solutions across Insurance, Education, and Finance sectors

- **Open Source Contributions**: Active contributor to functional programming community and educational content



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## ๐Ÿ’ป Tech Stack



### Languages & Frameworks

**Current Focus**: Clojure โ€ข Haskell

**Production Experience**: Java โ€ข Ruby โ€ข Python 

**Deep Research**: Clojure โ€ข Haskell โ€ข Java



### Architecture & Patterns

Clean Architecture โ€ข DDD โ€ข Event-Driven Systems โ€ข Hexagonal Architecture โ€ข Microservices



### Backend & Data

**Databases**: PostgreSQL, MongoDB, Oracle, DB2, BigQuery  

**APIs**: REST (Richardson Level 3), GraphQL  

**Distributed Systems**: Message queues, event streaming, concurrency



### DevOps & Tools

Docker โ€ข CI/CD (GitHub Actions, Jenkins) โ€ข Monitoring & Logging



### ๐ŸŒŒ Active Exploration

**Backend Engineering** | **Distributed Systems** | **Clean Architecture & DDD** | **GenAI Integration**



My current exploration is focused on pushing the boundaries of backend engineering:  

from building highly concurrent systems in Clojure/Python, to integrating GenAI into production backends with Python,  

to exploring modern fullstack experiences with ClojureScript.  



*This path is guiding me toward becoming not just a strong individual contributor, but a **future Tech Lead** who can drive architecture, mentor teams, and deliver business-critical systems at scale.*



### ๐Ÿ—„๏ธ Database Mastery

**Relational**: PostgreSQL, Oracle (PL/SQL), IBM DB2  

**NoSQL**: MongoDB 

**Analytics**: Google BigQuery 

**Performance**: Query optimization, indexing strategies, database design patterns



### โš™๏ธ DevOps & Infrastructure Excellence

**Containerization**: Docker  

**CI/CD**: GitHub Actions, Jenkins, Bamboo, Azure DevOps  

**Monitoring**: Application performance monitoring, logging strategies



### ๐Ÿ” Security & Authentication

**Modern Auth**: JWT, OAuth 2.0  

**Security Patterns**: Zero-trust architecture, API security, encryption at rest/transit



### ๐Ÿ“‹ Engineering Excellence

**Methodologies**: Agile (Scrum, Kanban), DevOps culture, TDD/BDD  

**Collaboration**: Code reviews, pair programming, technical mentoring  

**Tools**: Jira, Azure Boards, Confluence, technical documentation



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## ๐Ÿงฉ Design Patterns Implementation

### [๐Ÿ” Explore Complete Repository](https://github.com/AF2B/DesignPattern)



*A comprehensive collection of design patterns implemented with clean code principles and extensive documentation.*



| **Behavioral Patterns** | **Creational Patterns** | **Structural Patterns** |

|--------------------------|--------------------------|--------------------------|

| ๐Ÿ **Chain Of Responsibility** - *Complete* | ๐ŸŒฐ **Abstract Factory** - *In Progress* | ๐Ÿ”Œ **Adapter** - *In Progress* |

| ๐Ÿ‘ซ **Command** - *In Progress* | ๐Ÿ‘ท **Builder** - *Complete* | ๐ŸŒ‰ **Bridge** - *In Progress* |

| ๐ŸŽถ **Interpreter** - *In Progress* | ๐Ÿญ **Factory Method** - *Complete* | ๐ŸŒฟ **Composite** - *In Progress* |

| ๐Ÿซ **Iterator** - *In Progress* | ๐Ÿ”‚ **Monostate** - *Complete* | ๐Ÿง **Decorator** - *Complete* |

| ๐Ÿ’ **Mediator** - *In Progress* | ๐Ÿƒ **Prototype** - *In Progress* | ๐ŸŽ **Facade** - *Complete* |

| ๐Ÿ’พ **Memento** - *In Progress* | ๐Ÿ’ **Singleton** - *Complete* | ๐Ÿƒ **Flyweight** - *In Progress* |

| ๐Ÿ‘“ **Observer** - *Complete* |  | โ˜” **Protection Proxy** - *In Progress* |

| ๐Ÿ‰ **State** - *Complete* |  | ๐Ÿฌ **Virtual Proxy** - *In Progress* |

| ๐Ÿ’ก **Strategy** - *In Progress* |  |  |

| ๐Ÿƒ **Visitor** - *In Progress* |  |  |

| ๐Ÿ“ **Template Method** - *In Progress* |  |  |



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## ๐Ÿ› ๏ธ Data Structures Mastery

### [๐Ÿ” Explore Complete Repository](https://github.com/AF2B/DataStructure)



*Advanced data structure implementations with algorithmic complexity analysis and real-world use cases.*



| **Linear Structures** | **Hierarchical Structures** | **Graph-Based Structures** |

|-----------------------|------------------------------|----------------------------|

| ๐Ÿ“„ **Array** - *Complete* | ๐ŸŒฒ **Tree** - *Complete* | ๐Ÿ”— **Graph** - *In Progress* |

| ๐Ÿ“‘ **Linked List** - *Complete* | ๐ŸŒณ **Binary Tree** - *In Progress* | ๐Ÿ”€ **Directed Graph** - *In Progress* |

| ๐Ÿ“‹ **Stack** - *Complete* | ๐ŸŒฒ **AVL Tree** - *In Progress* | ๐ŸŒ **Undirected Graph** - *In Progress* |

| ๐Ÿ“œ **Queue** - *Complete* | ๐ŸŒด **Red-Black Tree** - *In Progress* | ๐Ÿ“‰ **Weighted Graph** - *In Progress* |

| ๐Ÿ“„ **Deque** - *In Progress* | ๐ŸŒฟ **B-Tree** - *In Progress* | ๐Ÿ”„ **Cyclic Graph** - *In Progress* |

| ๐Ÿ“‘ **Circular Buffer** - *In Progress* | ๐Ÿ“‹ **Priority Queue** - *In Progress* | ๐Ÿšฆ **Acyclic Graph** - *In Progress* |

| ๐Ÿ“œ **Sparse Matrix** - *In Progress* |  |  |



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## ๐Ÿงฉ Functional Programming Patterns

### [๐Ÿ” Explore Complete Repository](#)



*A comprehensive exploration of functional programming concepts, patterns, and advanced techniquesโ€”from foundational principles to cutting-edge functional design.*



| **Foundational Concepts** | **Type Theory & Abstractions** | **Advanced Patterns** | **Design Principles** |

|---------------------------|--------------------------------|-----------------------|-----------------------|

| ๐Ÿ”ท **Algebraic Data Types (ADTs)** - *In Progress* | ๐Ÿ”ฎ **Functor** - *In Progress* | ๐ŸŒ€ **Free Monad** - *In Progress* | ๐Ÿ—๏ธ **Functional Core, Imperative Shell** - *In Progress* |

| ๐ŸŽฏ **Pattern Matching** - *In Progress* | โœจ **Applicative** - *In Progress* | ๐Ÿ”„ **Recursion Schemes** - *In Progress* | ๐Ÿ›ก๏ธ **Smart Constructor** - *In Progress* |

| ๐ŸŽช **Higher-Order Functions (HOFs)** - *Complete* | ๐ŸŒŠ **Monad** - *In Progress* | ๐Ÿท๏ธ **Tagless Final** - *In Progress* | โš ๏ธ **Make Illegal States Unrepresentative** - *In Progress* |

| ๐Ÿ” **Closures** - *Complete* | ๐Ÿงฌ **Semigroup** - *In Progress* | ๐Ÿ’พ **Hash-Consing** - *In Progress* | โœ… **Errors as Values** - *In Progress* |

| ๐Ÿ”’ **Immutability** - *Complete* | ๐ŸŽญ **Monoid** - *In Progress* | ๐Ÿ”ข **De Bruijn Index** - *In Progress* | ๐Ÿ” **Parse, Don't Validate** - *In Progress* |

| โœ”๏ธ **Totality** - *In Progress* | ๐Ÿ“ **Parametric vs Ad-hoc Polymorphism** - *In Progress* | ๐Ÿงฉ **Expression Problem** - *In Progress* |  |

| ๐ŸŒŠ **Streams** - *In Progress* | ๐Ÿ”Ž **Type Inference** - *In Progress* | ๐Ÿงฎ **Lambda Calculus** - *In Progress* |  |

| ๐Ÿ’ค **Lazy Streams** - *In Progress* | ๐Ÿ”„ **Endomorphism** - *In Progress* |  |  |

| โšก **Stream Fusion** - *In Progress* | โ†”๏ธ **Isomorphism** - *In Progress* |  |  |

| ๐ŸŒฒ **Deforestation** - *In Progress* | โฌ…๏ธ **Contravariant** - *In Progress* |  |  |

| ๐Ÿ” **Recursion** - *Complete* | ๐ŸŽฏ **Profunctor** - *In Progress* |  |  |

| ๐Ÿ“ฆ **fold** - *Complete* | ๐Ÿ”ฌ **Lens** - *In Progress* |  |  |

| ๐Ÿšถ **traverse** - *In Progress* | ๐Ÿ’Ž **Prism** - *In Progress* |  |  |

|  | ๐Ÿงช **Parser Combinators** - *In Progress* |  |  |

|  | โœ”๏ธ **Applicative Validation** - *In Progress* |  |  |



---



## ๐Ÿ“‘ Engineering Standards & Best Practices

*My commitment to software craftsmanship through established guidelines and documented practices:*



## ๐Ÿ“š Technical Writing & Standards



**Published Articles:**

- [Clojure Is Awesome Series](https://dev.to/borba/clojure-is-awesome-5f6k) - Exploring Clojure's elegance

- [REST API Best Practices & RFCs](https://medium.com/beyondlabsey/...) - API design standards

- [Code Style Excellence](https://medium.com/@andre.borbaaf2b/...) - Quality practices

- [Functional Programming in Java](https://dev.to/borba/surfing-with-fp-java-the-beginning-4dj7)



**Engineering Practices:**  

Git Workflow โ€ข Documentation โ€ข Testing (TDD/BDD) โ€ข Logging Strategies โ€ข API Design



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## ๐ŸŽ“ Education



**Blockchain Development & Smart Contracts** | Anhanguera | 2027-2029  

*Focus: Distributed ledger technologies, cryptographic protocols, smart contract security, decentralized applications (DApps), and blockchain architecture*



**Planned Specialization (2029-2030)**  

Blockchain โ€ข Software Engineering & Smart Contracts



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## ๐Ÿ’ฌ Let's Connect



I'm always open to discussing:

- Functional programming and clean architecture

- Backend engineering challenges

- Tech leadership and mentorship

- Open source collaborations



Feel free to reach out or explore my projects below! ๐Ÿ‘‡



## ๐ŸŒ Professional Network & Portfolio



**Professional Presence**

- ๐Ÿ’ผ **LinkedIn**: [andrefilipefonsecaborba](https://www.linkedin.com/in/andrefilipefonsecaborba/) - *Professional networking and industry insights*

- ๐Ÿš€ **GitHub**: [AF2B](https://github.com/AF2B) - *Open source contributions and technical projects*

- ๐Ÿš€ **GitHub Corp**: [BSCE](https://github.com/Borba-Sovereign-Computing-Enterprise) - *Open source contributions and technical projects*

- ๐Ÿง  **LeetCode**: [andreborba](https://leetcode.com/u/andreborba/) - *Algorithmic problem solving and competitive programming*



**Technical Writing & Knowledge Sharing**

- โœ๏ธ **Medium**: [@andre.borbaaf2b](https://medium.com/@andre.borbaaf2b) - *In-depth technical articles and software engineering insights*

- ๐Ÿ‘จโ€๐Ÿ’ป **DEV Community**: [borba](https://dev.to/borba) - *Community engagement and technical tutorials*

- ๐ŸŒŽ **Personal Website**: *Coming Soon* - *Technical blog and portfolio showcase*

- ๐Ÿ“„ **Professional Resume**: *PDF Version In Progress*



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**ALT**: ะะะ”ะ ะ• ะ‘ะžะ ะ‘ะ 

**ALT**: **Clojure** Nerd



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*"Code is poetry written for machines to execute and humans to understand. I strive to make both audiences appreciate the craft."*