Senior Backend Engineer
- Java
- Microservices
- Spring Boot
- CI/CD
- OpenAPI
- OAuth2
- JWT
- Apache Kafka
- JVM
- SQL
- AWS
- AWS Lambda
- API Gateway
- Step Functions
- Python
- Node.js
- AI
- REST API
- OWASP
- Vulnerability Management
- JPA
- Swagger
- PostgreSQL
- Redis
- Devops
- Docker
- GitLab CI
- IAM
- Secrets Management
- JUnit
- Mockito
- Prometheus
- Grafana
- OpenTelemetry
- Agile
- Scrum
- Health insurance
Job Purpose
Designs, builds, and operates production-grade Java microservices on Spring Boot. Owns the full delivery lifecycle: API design, data modelling, messaging, observability, CI/CD, and on-call support. Collaborates closely with Product, QA, and SRE teams to deliver reliable, scalable services. Provides architectural guidance, makes key technical decisions, and mentors other developers. The role involves ensuring best practices, optimizing performance, and aligning technical solutions with business goals while building secure, high-performing distributed systems.
Roles and Responsibilities
ยทย ย ย ย Design and implement high-performance, scalable microservices using Java 17+ and Spring Boot
ยทย ย ย ย Own end-to-end API design including versioning, idempotency, error contracts, and OpenAPI specifications
ยทย ย ย ย Architect microservices following bounded contexts, saga patterns, and proper service decomposition
ยทย ย ย ย Enforce security best practices including OAuth2, JWT, secure coding, and vulnerability remediation
ยทย ย ย ย Integrate and manage event-driven systems using Apache Kafka
ยทย ย ย ย Optimize application performance through JVM tuning, caching strategies, profiling, and latency reduction
ยทย ย ย ย Optimize database/SQL performance through indexing strategies, query tuning, and EXPLAIN plan analysis
ยทย ย ย ย Manage and optimize scalable distributed systems in the cloud (AWS)
ยทย ย ย ย Design and implement serverless solutions (AWS Lambda, API Gateway, Step Functions)
ยทย ย ย ย Utilize scripting languages (Python, Node.js) for tooling, automation, and auxiliary services
ยทย ย ย ย Participate in on-call rotations and production incident resolution
ยทย ย ย ย Conduct code reviews and mentor less-experienced engineers
ยทย ย ย ย Communicate regularly with the engineering manager, QA teams, and other developers regarding progress on the technology roadmap
ยทย ย ย ย Leverage AI-assisted development tools to accelerate coding, debugging, testing, and documentation workflows
ยทย ย ย ย Drive automation using AI across the software lifecycle โ design, development, testing, support, log analysis, and ticket summarization
ยทย ย ย ย Produce quality code, raising the bar for team performance and speed
ยทย ย ย ย Write code and tests, build prototypes, resolve issues, and profile and analyze bottlenecks
Required Skills and Qualifications
ยทย ย ย ย Advanced proficiency in Java 17+ with modern features (records, sealed types, streams, var)
ยทย ย ย ย Expert-level Spring Boot knowledge (auto-configuration, profiles, configuration properties)
ยทย ย ย ย Advanced REST API design skills (versioning, idempotency, error contracts, HATEOAS)
ยทย ย ย ย Strong microservices architecture experience (bounded contexts, sagas, decomposition)
ยทย ย ย ย Advanced security expertise (OAuth2, JWT, OWASP, secure coding, vulnerability management)
ยทย ย ย ย Solid understanding of concurrency and threading (Executors, CompletableFuture, locking)
ยทย ย ย ย Experience with event-driven architectures using Apache Kafka
ยทย ย ย ย Performance optimization skills (JVM tuning, caching, profiling, latency reduction)
ยทย ย ย ย Experience with AI security and governance (data privacy, prompt injection awareness, safe AI usage)
ยทย ย ย ย Growth mindset that challenges the status quo and focuses on continuous improvement
Technical Competencies/Skills
ยทย ย ย ย Core: Java 17+, Spring Boot, Spring Data JPA, Spring Security
ยทย ย ย ย API: RESTful APIs, OpenAPI/Swagger, API versioning and integration patterns
ยทย ย ย ย Messaging: Apache Kafka (producers, consumers, schema registry)
ยทย ย ย ย Data: PostgreSQL, SQL (indexing, EXPLAIN plans, migrations)
ยทย ย ย ย Caching: Redis (cache-aside, TTL, invalidation) โ nice to have
ยทย ย ย ย Resilience: Resilience4j, circuit breakers, retries, fallbacks, bulkheads
ยทย ย ย ย DevOps: Docker (multi-stage builds)
ยทย ย ย ย CI/CD: GitLab CI (pipeline-as-code, security scans)
ยทย ย ย ย Cloud: AWS or other cloud platforms (compute, IAM, networking, secrets management)
ยทย ย ย ย Testing: JUnit 5, Mockito (unit tests, slice tests, parameterized tests)
ยทย ย ย ย Observability: Prometheus, Grafana, OpenTelemetry, structured logging
ยทย ย ย ย AI Tools: GitHub Copilot, Amazon Q, prompt engineering, LLM API integration, AI-augmented testing
ยทย ย ย ย Strong analytical and problem-solving aptitude
Education
ยทย ย ย ย BS in Engineering or Computer Science
Experience
ยทย ย ย ย At least 5+ years of professional experience building backend services in Java
ยทย ย ย ย Proven track record designing and operating production microservices at scale
ยทย ย ย ย Experience with distributed systems, eventual consistency, and fault tolerance
ยทย ย ย ย Experience with Agile/Scrum practices (sprint planning, estimation, retrospectives)
Licenses and Certifications
ยทย ย ย ย AWS or cloud platform certification (preferred, not mandatory)
- Social insurance
- Health insurance for employee and family
- The company will contribute up to EUR 25 per month towards staff perks
- Benefit from ourperformance-based bonus scheme, in line with company policy.
- EUR equivalent salaries paid in EGP
Senior Backend Engineer ยท Mondia Group