Middle Java Engineer

N-iX is seeking a Middle Java Engineer to join our vibrant team.

About the project:

Our client is a global marketplace for savings and investments, providing savers with effortless access to high-yield savings accounts and investment options from over 400 partner banks worldwide. It eliminates geographic limitations, ensuring transparency, convenience, and competitive rates. For banks, it offers cost-efficient deposit funding and innovative Banking-as-a-Service solutions.

Responsibilities

The team specializes in developing and maintaining robust backend services that support the customer's tech platform, which handles the full lifecycle of payment management for millions of active deposit accounts. The team’s primary responsibilities are:

Ensure the accurate, reliable, and efficient payment execution and reporting to our partners.
guarantee compliance with regulatory requirements and ensure the integrity of financial records.

Currently, the team consists of five experienced Senior Software Engineers, working collaboratively in an agile environment.

Must-Have Skills & Technologies

Experience:

Minimum 4 years as a Java Software Engineer, with experience in managing software projects through the full lifecycle — from design to runtime support.

Technical Stack:

Languages & Frameworks: Java 17 (migrating to Java 21), Spring Boot 3
Databases: MySQL 8, SQL, and NoSQL solutions
Architecture & Infrastructure: Microservices architecture, event-driven systems using Kafka and ActiveMQ
Cloud & DevOps: AWS Services, Kubernetes (K8s), CI/CD pipelines
Versioning & Documentation: Strong code review skills, technical documentation ownership, and technical debt management

Software Engineering Practices:

Strong knowledge of OOP and SOLID principles
Familiarity with modern software development practices and standards
Proactive involvement in standard-setting, guidelines creation, and best practices within the team

Ownership & Collaboration:

Experience of End-to-end responsibility for project delivery
Willingness to replace legacy services and improve technical foundations
Comfortable with architecture discussions and proposing alternative solutions

Soft Skills:

Strong problem-solving and critical-thinking abilities
Excellent communication and collaboration skills in an international team
Respectful, constructive feedback during code reviews
Ownership mindset, quality-driven development
Fluent in English (Upper-Intermediate or higher)
Ukrainian language, Advanced or higher.

Responsibilities:

Develop, maintain, and enhance a large-scale online banking platform.
Perform the software engineer tasks with great attention to quality, and support other engineers in your team to do the same.
Collaborate with the team to set technical standards and share best practices.
Perform detailed code reviews, ensuring not only best practices and business rules, but also performance, security, impact on other features or projects, and always with respectful and constructive communication.
Research and shape multiple alternative technical solutions when possible.
End-to-end ownership of the team project's delivery.
Actively manage technical documentation and address technical debt.

We offer*:

Flexible working format - remote, office-based or flexible
A competitive salary and good compensation package
Personalized career growth
Professional development tools (mentorship program, tech talks and trainings, centers of excellence, and more)
Active tech communities with regular knowledge sharing
Education reimbursement
Memorable anniversary presents
Corporate events and team buildings
Other location-specific benefits
not applicable for freelancers

Middle Java Engineer

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