Senior Java And Kotlin Engineer

TL;DR

Senior Java And Kotlin Engineer (Backend): Building a unified, scalable ads platform using modern Java and Kotlin with an accent on modular monolith architecture, hexagonal design, and domain-driven design. Focus on refactoring legacy code, creating clean and testable services, and collaborating on API contracts within a cloud environment.

Location: Fully Remote, based in Czech Republic

Company

hirify.global is a global software development company providing a full spectrum of services including business and tech advisory, enterprise solutions, product development, and managed services.

What you will do

• Develop and maintain backend services using modern Java (17+) and Kotlin
• Refactor legacy code focusing on quality and maintainability
• Write clean, testable code following SOLID and Clean Code principles
• Create and maintain unit and integration tests
• Collaborate with frontend team to define API contracts
• Share knowledge and take ownership within a team of backend developers

Requirements

• Location: Must be based in Czech Republic or fluent in Czech/Slovak
• English: C1 level required
• Strong experience with modern Java and Kotlin
• Expertise in REST APIs and authentication workflows (key-based, OAuth)
• Knowledge of PostgreSQL and MongoDB databases
• Cloud development skills, preferably GCP

Nice to have

• Experience with Docker and Kubernetes
• Familiarity with ETL processes, large data volumes, and streaming technologies like Kafka
• Experience integrating with Meta and TikTok platforms
• AdTech industry experience

Culture & Benefits

• Pleasant working environment with a stable background in a large global software company
• Opportunities for independent and creative work with learning and development support
• High-quality hardware and access to latest technologies
• Language skill improvement opportunities and internal/external training courses
• Benefits including life insurance, pension contribution, language lessons, MultiSport card, sick days, meal allowance, company events, and hybrid remote work options

Hiring process

• Application review with curiosity and care
• Talent acquisition interview to discuss goals and company support
• Technical interview focusing on expertise and problem-solving
• Customer interview for client-aligned roles
• Job offer and onboarding support