Required Skills

Concepts

• Strong knowledge of:
• Test-Driven Development (TDD)
• Clean Code and SOLID principles
• GoF Design Patterns
• Software architecture concepts: Coupling, Cohesion, Modularity, Encapsulation, Abstraction, Responsibility Segregation
• Code review practices
• Software architectures:
• Layered Architecture
• Hexagonal Architecture
• Modular Monolith
• Microservices
• Package organization (by feature, by layer)
• System Design & API Development
• Observability, Resilience, Scalability, Logging
• CI/CD best practices
• Functional and Non-Functional Testing
• Deployment strategies
• Linux, Containers (Docker, Kubernetes)
• Security fundamentals
• Networking & Protocols
• SLA/SLO/SLI concepts
• DORA metrics and Root Cause Analysis

Testing

• Deep understanding of:
• Testing Pyramid, Testing Trophy
• Unit testing schools:
• London School (Mockist)
• Classical School (Detroit/Chicago)

Databases

• Strong understanding of:
• RDBMS (PostgreSQL)
• NoSQL (DynamoDB, DocumentDB)
• Transactions, ACID vs. BASE
• Data consistency, sharding, replication

Technology

• Java 17 / Java 21
• Spring Boot 3.x, Maven
• JPA/Hibernate
• PostgreSQL
• AWS (EKS, EC2, ECR, ECS, Lambda, SAM, S3, Aurora, RDS, DynamoDB, DocumentDB, VPC, Load Balancers, Route 53, SQS, SNS, Secrets Manager, ACM, CloudWatch, CloudTrail)
• DevOps/SRE tools & practices:
• Jenkins (Groovy)
• Terraform
• Kubernetes
• Docker
• Basic frontend knowledge: JavaScript, React, NPM, Webpack, Babel

Technical Leadership

• Documents technical decisions (e.g., ADRs, EDRs)
• Familiar with at least one decision-making framework (e.g., RAPID)
• Leads with questions, promotes consensus, and supports autonomy with accountability
• Builds trust-based, high-performing team cultures
• Removes blockers and enables team success without micromanaging
• Familiar with different SDLC models
• Goal- and OKR-oriented
• Delegates and prioritizes effectively
• Drives process automation and continuous improvement

Qualifications

• 5+ years of experience in backend software engineering
• Proven track record of delivering complex, scalable software systems
• Excellent communication skills and ability to collaborate with diverse stakeholders
• Strong orientation towards results and experience in improving DORA metrics