{"id":3919902,"url":"https://alion.io/job/adfinis-ag-senior-java-backend-developer-mwd","title":"Senior Java Backend Developer (mwd)","company":{"id":4523177,"name":"Adfinis AG","domain":null,"url":"https://alion.io/company/adfinis-ag","size_band":null,"is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":null,"truth_index":null},"role":"Backend","role_family":"Backend","seniority":"senior","employment_type":"full_time","work_mode":"remote","remote_scope":"stated_countries","remote_scope_basis":"board_field","remote_working_hours":null,"hiring_geo_confidence":"inferred","locations":["Cairo, Egypt"],"countries":["EG"],"hiring_countries":["EG"],"hiring_countries_total":1,"salary":null,"salary_estimate":null,"experience_years_min":null,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"Agile","optional":false},{"name":"Amazon ECS","optional":false},{"name":"Amazon S3","optional":false},{"name":"Apache Kafka","optional":false},{"name":"AWS","optional":false},{"name":"AWS Lambda","optional":false},{"name":"Azure","optional":false},{"name":"CI/CD","optional":false},{"name":"Clean Architecture","optional":false},{"name":"Docker","optional":false},{"name":"GCP","optional":false},{"name":"GitLab","optional":false},{"name":"Helm","optional":false},{"name":"Hibernate","optional":false},{"name":"Java","optional":false},{"name":"Jira","optional":false},{"name":"JUnit","optional":false},{"name":"Kubernetes","optional":false},{"name":"MySQL","optional":false},{"name":"PostgreSQL","optional":false},{"name":"RabbitMQ","optional":false},{"name":"Redis","optional":false},{"name":"Rest API","optional":false},{"name":"Scrum","optional":false},{"name":"SOAP","optional":false},{"name":"Spring Boot","optional":false},{"name":"Spring Cloud","optional":false},{"name":"Spring Security","optional":false},{"name":"SQL","optional":false},{"name":"Testcontainers","optional":false},{"name":"ArgoCD","optional":true},{"name":"GitLab CI","optional":true},{"name":"Jenkins","optional":true},{"name":"Keycloak","optional":true}],"status":"live","first_seen_at":"2026-10-30T00:00:00Z","employer_posted_date":null,"last_verified_at":"2026-10-30T00:00:00Z","board_verified":false,"closed_at":null,"days_open":8,"trust":{"level":"not_scored","repost_count":null,"flags":[],"days_open":8},"description":"About Adfinis\nAt Adfinis were not just another software company were an Open Source powerhouse with a passion for clean reliable and scalable technology.\nWith roots in Switzerland and teams across Germany the Netherlands Australia and Egypt we build solutions that empower organizations to move fast stay secure and scale sustainably.\nAs a Senior Java Backend Developer youll play a key role in designing and building high-performance microservices that form the backbone of our clients infrastructure. Youll work closely with global teams to deliver modern cloud-native systems that make an impact while staying true to our Open Source values.\nTasks What Youll Do\nBe a key member of the Backend Engineering Team designing and maintaining scalable high-performance Java microservices\n\nDevelop and optimize RESTful APIs that connect front-end data and external systems via API Gateways\n\nBuild cloud-native microservices deployed on AWS Azure or GCP environments\n\nWrite clean testable and maintainable code following SOLID DDD and Clean Code principles\n\nContribute to the architecture and design of distributed systems and domain models\n\nCollaborate closely with Frontend Developers DevOps Engineers and Product Owners in Agile/Scrum teams\n\nParticipate in code reviews pair programming and drive continuous improvement initiatives\n\nEnsure system reliability security and observability using modern monitoring and logging practices\n\nSupport CI/CD pipelines containerization and deployment automation with Docker and Kubernetes\n\nRequirements What Were Looking For\nBachelors degree in Computer Science Software Engineering or equivalent\n\n5 years of experience in Java/Spring backend development\n\nStrong knowledge of Java 17 Spring Boot Spring Security Spring Cloud\n\nDeep understanding of OOP Design Patterns and Microservices Architecture\n\nProven experience building REST APIs SOAP Web Services and writing clean maintainable code\n\nProficient with JPA/Hibernate SQL and NoSQL databases (PostgreSQL MySQL MongoDB Redis)\n\nFamiliar with cloud services and API Gateways (Spring Cloud Gateway AWS Lambda ECS S3 Azure/GCP equivalents)\n\nExperience with event-driven systems and message brokers (Kafka RabbitMQ)\n\nSolid understanding of Clean Architecture testing (JUnit Testcontainers) and automation\n\nUsed to working in Agile environments with GitLab Jira and Confluence\n\nKnowledge of containerization and cloud deployments (Docker Kubernetes Helm)\n\nPassionate about performance optimization and robust software design\n\nStrong communicator with a solution-oriented mindset and focus on delivery excellence\n\n Bonus Points\nExperience with Keycloak OAuth 2.0 or JWT authentication\n\nFamiliarity with CI/CD tools (GitLab CI Jenkins ArgoCD)\n\nHands-on with Reactive Programming (WebFlux Reactor)\n\nContributions to Open Source projects or mentoring experience in dev teams\n\nBenefits Why Youll Love Working Here\n Remote-First setup with flexibility and autonomy\n Collaborate with international Open Source experts across time zones\n Work on modern cloud-native systems with cutting-edge technologies\n Continuous learning certifications conferences & mentoring included\n A culture that celebrates team spirit ownership and engineering excellence\n Ready to Build What Matters\nJoin Adfinis LLC and bring your Java mastery to a team thats shaping the future of Open Source infrastructure.\nIf you thrive on clean code collaboration and crafting systems that just work we cant wait to meet you. \nAdfinis LLC Open Source. 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