# Backend Developer Competency Evaluation System – Semi-senior Advanced Level This evaluation system is based on a points model: - **Basic:** 1 point - **Intermediate:** 3 points - **Advanced:** 5 points - **Expert:** 7 points To advance from **Semi-senior Advanced** to **Senior**, candidates must: 1. Demonstrate at least the minimum required level in each **Core** skill. 2. Achieve a minimum overall score across all evaluated skills. --- ## Semi-senior Advanced Level: Skill Classification & Minimum Levels At the Semi-senior Advanced level, candidates are expected to have deep, expert-level knowledge in core technical areas while also demonstrating strong competencies in complementary skills. ### Core Skills (Mandatory for Advancement) - **SQL:** - **Required Level:** Expert (7 points) *Expertise in complex queries, performance optimization, and data modeling at scale.* - **OOP & Programming:** - **Required Level:** Expert (7 points) *Mastery of object-oriented design, advanced programming techniques, and problem solving.* - **Java:** - **Required Level:** Expert (7 points) *In-depth knowledge of Java language features, frameworks, and ecosystem best practices.* - **REST Services:** - **Required Level:** Expert (7 points) *Ability to design and implement scalable, secure, and high-performance RESTful services.* - **Persistence Frameworks:** - **Required Level:** Expert (7 points) *Expert-level proficiency in ORM (e.g., JPA) for managing complex data relationships and transactions.* - **Spring:** - **Required Level:** Expert (7 points) *Deep understanding of the Spring framework, including dependency injection, aspect-oriented programming, and microservices integration.* - **Transactions:** - **Required Level:** Expert (7 points) *Expert management of transaction boundaries and consistency in distributed systems.* - **CI/CD:** - **Required Level:** Expert (7 points) *Extensive experience designing, implementing, and troubleshooting continuous integration and deployment pipelines.* - **Design Patterns:** - **Required Level:** Expert (7 points) *Fluent in a wide range of design patterns with the ability to tailor and apply them to solve complex design challenges.* - **Git:** - **Required Level:** Expert (7 points) *Expert-level version control skills, including managing advanced workflows and conflict resolution in large teams.* - **Test:** - **Required Level:** Expert (7 points) *Deep knowledge of testing methodologies, including unit, integration, and automated testing, along with Test-Driven Development (TDD).* - **Architecture:** - **Required Level:** Expert (7 points) *Ability to design and evaluate complex system architectures, ensuring scalability, reliability, and maintainability.* - **Microservices:** - **Required Level:** Expert (7 points) *Expert-level understanding of microservices architecture, including service decomposition, communication, and resilience.* - **Security:** - **Required Level:** Expert (7 points) *Thorough knowledge of security principles, including secure coding practices, vulnerability assessment, and compliance standards.* - **AWS:** - **Required Level:** Expert (7 points) *Advanced proficiency in AWS services and cloud architecture, including cost optimization, high availability, and security best practices.* *Total Core Skills:* 15 skills × 7 points each = **105 points** ### Secondary Skills (Complementary) - **Soft Skills:** - **Required Level:** Expert (7 points) *Exceptional communication, leadership, and teamwork skills, with the ability to mentor and drive collaboration.* - **Workstation:** - **Required Level:** Basic (1 point) *Properly configured and optimized development environment.* - **Web:** - **Required Level:** Basic (1 point) *Basic familiarity with front-end technologies to support integration tasks.* - **Algorithms & Data Structures:** - **Required Level:** Expert (7 points) *Expert-level understanding of algorithms and data structures, with the ability to optimize performance and solve complex problems.* - **Scrum:** - **Required Level:** Intermediate (3 points) *Solid understanding of agile methodologies and Scrum practices.* - **Logging:** - **Required Level:** Intermediate (3 points) *Proficient in implementing and managing logging solutions for effective debugging and monitoring.* - **Building/Packaging:** - **Required Level:** Intermediate (3 points) *Experience with advanced build tools and packaging solutions.* - **Documentation:** - **Required Level:** Intermediate (3 points) *Ability to produce clear, comprehensive documentation for complex systems.* - **Spring Ecosystem:** - **Required Level:** Expert (7 points) *In-depth knowledge of additional Spring projects (e.g., Spring Boot, Spring Security) and their integration within enterprise solutions.* - **Cryptography:** - **Required Level:** Expert (7 points) *Expert understanding of cryptographic principles and practices for data protection and secure communications.* - **IaaC (Infrastructure as Code):** - **Required Level:** Basic (1 point) *Fundamental knowledge of using IaC tools for environment provisioning and management.* - **NoSQL:** - **Required Level:** Advanced (5 points) *Proficiency in NoSQL databases, including data modeling, performance tuning, and consistency patterns.* *Total Secondary Skills:* Soft Skills (7) + Workstation (1) + Web (1) + Algorithms & Data Structures (7) + Scrum (3) + Logging (3) + Building/Packaging (3) + Documentation (3) + Spring Ecosystem (7) + Cryptography (7) + IaaC (1) + NoSQL (5) = **48 points** --- ## Scoring Tables ### Core Skills | Skill | Current Level (Semi-senior Advanced) | Required for Advancement to Senior | Minimum Points Required | |-----------------------------|--------------------------------------|--------------------------------------|-------------------------| | **SQL** | Advanced (5) | Expert (7) | 7 | | **OOP & Programming** | Advanced (5) | Expert (7) | 7 | | **Java** | Advanced (5) | Expert (7) | 7 | | **REST Services** | Advanced (5) | Expert (7) | 7 | | **Persistence Frameworks**| Advanced (5) | Expert (7) | 7 | | **Spring** | Advanced (5) | Expert (7) | 7 | | **Transactions** | Advanced (5) | Expert (7) | 7 | | **CI/CD** | Advanced (5) | Expert (7) | 7 | | **Design Patterns** | Advanced (5) | Expert (7) | 7 | | **Git** | Advanced (5) | Expert (7) | 7 | | **Test** | Advanced (5) | Expert (7) | 7 | | **Architecture** | Advanced (5) | Expert (7) | 7 | | **Microservices** | Advanced (5) | Expert (7) | 7 | | **Security** | Advanced (5) | Expert (7) | 7 | | **AWS** | Advanced (5) | Expert (7) | 7 | *Core Skills Total:* 15 skills × 7 points each = **105 points** ### Secondary Skills | Skill | Current Level (Semi-senior Advanced) | Required for Advancement to Senior | Minimum Points Required | |-----------------------------------|--------------------------------------|--------------------------------------|-------------------------| | **Soft Skills** | Advanced (5) | Expert (7) | 7 | | **Workstation** | Basic (1) | Basic (1) | 1 | | **Web** | Basic (1) | Basic (1) | 1 | | **Algorithms & Data Structures** | Advanced (5) | Expert (7) | 7 | | **Scrum** | Intermediate (3) | Intermediate (3) | 3 | | **Logging** | Intermediate (3) | Intermediate (3) | 3 | | **Building/Packaging** | Intermediate (3) | Intermediate (3) | 3 | | **Documentation** | Intermediate (3) | Intermediate (3) | 3 | | **Spring Ecosystem** | Advanced (5) | Expert (7) | 7 | | **Cryptography** | Advanced (5) | Expert (7) | 7 | | **IaaC** | Basic (1) | Basic (1) | 1 | | **NoSQL** | Advanced (5) | Advanced (5) | 5 | *Secondary Skills Total:* 7 + 1 + 1 + 7 + 3 + 3 + 3 + 3 + 7 + 7 + 1 + 5 = **48 points** --- ### Total Minimum Points Calculation - **Core Skills Total:** 105 points - **Secondary Skills Total:** 48 points - **Overall Total Minimum Required:** 105 + 48 = **153 points** --- ## Validation Process for Advancement To be eligible for advancement from **Semi-senior Advanced** to **Senior**, a candidate must satisfy both conditions: 1. **Core Skills Requirement:** The candidate must demonstrate at or above the required proficiency in each Core skill: - **SQL, OOP & Programming, Java, REST Services, Persistence Frameworks, Spring, Transactions, CI/CD, Design Patterns, Git, Test, Architecture, Microservices, Security, and AWS** must each be at **Expert (7 points)**. *If any one of these core skills is below Expert, the candidate cannot advance regardless of the overall score.* 2. **Total Points Requirement:** The candidate’s overall score—calculated by summing the points from all evaluated skills—must be **at least 153 points**. *For example, if a candidate’s total score is 152 points, they do not meet the threshold to advance.* A candidate can only advance from Semi-senior Advanced to Senior if both conditions are met. --- [Back to Main Backend Page](../backend.md)