CrawlJobs Logo

Senior Java Engineer

n-ix.com Logo

N-iX

Location Icon

Location:
Ukraine

Category Icon

Job Type Icon

Contract Type:
Not provided

Salary Icon

Salary:

Not provided

Job Description:

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

Job Responsibility:

  • Develop, maintain, and enhance a large-scale online banking platform
  • Build high-quality solutions with a focus on performance, security, and scalability
  • Integrate external components into existing systems and ensure smooth operation
  • Collaborate with the team to set technical standards and share best practices
  • Perform detailed code reviews and provide constructive feedback
  • Actively manage technical documentation and address technical debt

Requirements:

  • 6+ years of experience in software engineering
  • Proficiency in Java and Spring Boot
  • Strong knowledge of AWS Services, Kubernetes (K8S), and event-driven architecture (Kafka, ActiveMQ)
  • Expertise working with microservices architecture
  • Strong experience with SQL and NoSQL databases
  • Solid understanding of core computer science fundamentals, including object-oriented programming (OOP) principles and SOLID design patterns
  • A bachelor’s or master’s degree in Computer Science, Engineering, or a related field (or equivalent practical experience)
  • English - Upper-Intermediate+
  • Ukrainian language Advanced or higher
What 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

Additional Information:

Job Posted:
January 26, 2026

Work Type:
On-site work
Job Link Share:

Looking for more opportunities? Search for other job offers that match your skills and interests.

Briefcase Icon

Similar Jobs for Senior Java Engineer

Senior Software Engineer - Java Full Stack - Futures Engineering

As a Developer, you will be enhancing and maintaining an enterprise Cleared Deri...
Location
Location
United States , Chicago
Salary
Salary:
185000.00 - 215000.00 USD / Year
clearstreet.io Logo
Clear Street
Expiration Date
Until further notice
Flip Icon
Requirements
Requirements
  • 5+ years of professional experience in back-end development with Java
  • 3+ years of experience within a financial institution, preferably in FCM (Futures Commission Merchant) or Broker-Dealer environments
  • Ability to work under pressure and meet deadlines
  • Experience building microservices
  • Strong understanding of design patterns, multithreading, and performance optimization
  • Strong problem-solving skills and ability to debug complex systems
  • Hands-on experience with Apache Kafka for event streaming and messaging
  • Proficiency in MongoDB or AWS DocumentDB for NoSQL database design and querying
  • Familiarity with Apache Solr for search and indexing, Apache ZooKeeper for distributed system coordination, and HashiCorp Vault for secrets management
  • Experience with Kubernetes for container orchestration and deployment
Job Responsibility
Job Responsibility
  • Working in a project team alongside other developers to architect, develop, and optimize server-side applications, RESTful APIs, and microservices using Java
  • Implement event-driven architectures with Apache Kafka and for real-time data processing
  • Contribute to front-end development using ReactJS, focusing on integrating UI components with back-end services
  • Optimize application performance, security, and reliability
  • Deploy and manage applications in Kubernetes clusters, ensuring high availability and scalability
  • Provide technical support for application
  • Collaborate with cross-functional teams across the organization to architect solutions and deliver robust features
  • Participate in code reviews, unit testing, and CI/CD pipeline maintenance
What we offer
What we offer
  • competitive compensation packages
  • company equity
  • 401k matching
  • gender neutral parental leave
  • full medical, dental and vision insurance
  • lunch stipends
  • fully stocked kitchens
  • happy hours
  • Fulltime
Read More
Arrow Right

Senior Software Engineer (Java)

As a Senior Java Developer in Payments. You'll have the opportunity to: Work in ...
Location
Location
Brazil , Sao Jose dos Campos
Salary
Salary:
Not provided
adyen.com Logo
Adyen
Expiration Date
Until further notice
Flip Icon
Requirements
Requirements
  • High skilled with Java
  • Familiar with complex and high performance platform
  • Able to coach and train other developers
  • Able to communicate in English
Job Responsibility
Job Responsibility
  • Design, implement, test and monitor new features
  • Identify and improve parts of the platform to make it more robust and scalable
  • Collaborate across teams and time zones to make things happen, review code and be open to feedback
  • Communicating with stakeholders and merchants and monitoring the impact of new features
What we offer
What we offer
  • programs to sharpen your English skills if needed
Read More
Arrow Right

Senior Java Engineer

KAYAK is seeking a Senior Java Engineer to join our Reviews & SEO Backend team. ...
Location
Location
Lithuania , Kaunas
Salary
Salary:
3260.00 - 5166.00 EUR / Month
https://www.kayak.com/ Logo
KAYAK
Expiration Date
Until further notice
Flip Icon
Requirements
Requirements
  • 4+ years Java experience
  • Strong programming fundamentals
  • Solid understanding of software design principles
  • Experience with asynchronous and non-blocking systems and reactive programming using Reactor Core
  • Spring framework knowledge
  • Experience with storage/query systems like MySQL, Elasticsearch
  • Excellent problem-solving skills and ability to work both independently and collaboratively
  • Strong English communication skills for effective articulation of technical concepts
  • Ability to thrive in a hybrid working model, working at least three office days per week
Job Responsibility
Job Responsibility
  • Design, develop, and maintain scalable and high-performance backend services for user reviews, SEO product, and AI-driven projects
  • Collaborate with stakeholders across engineering and product teams to translate requirements into efficient technical solutions
  • Work with various data storage and query systems like MySQL, Elasticsearch, etc
  • Identify and resolve complex software problems to meet product and business requirements
  • Participate in code reviews and knowledge sharing to foster team learning and growth
What we offer
What we offer
  • Work from (almost) anywhere for up to 20 days per year
  • Funds for your career growth
  • Access to thousands of on-demand e-learnings
  • Generous additional Health Insurance
  • Flexible sick time off
  • Additional financial support for your sick leave
  • Additional day off on your birthday
  • Company-wide vacation week once a year (winter holidays)
  • Additional financial support during parental leave
  • Free lunch twice a week and daily snacks at the office
  • Fulltime
Read More
Arrow Right

Senior Java Engineer

Senior Java Engineer position in Tokyo with a focus on developing and operating ...
Location
Location
Japan , Tokyo
Salary
Salary:
6000000.00 - 9000000.00 JPY / Year
https://www.randstad.com Logo
Randstad
Expiration Date
February 28, 2026
Flip Icon
Requirements
Requirements
  • Java development experience with Springboot (7 + years)
  • Knowledge and experience of database and system infrastructure (e.g. MySQL, Cassandra, Couchbase, Docker)
  • Experience in designing and implementing Restful API
  • Active experience in application development in java
  • Experience in actively taking responsibility on designing phase (Based on requirements from business Unit, you can think how those can be implemented based on current system by yourself)
  • Experience in CI/CD
  • Experience in building and managing application with async processing (message brokers)
  • Experience in developing and operating large-scale, high-capacity system
  • Experience in production alert handling and troubleshooting
  • Knowledge of alerting tools and monitoring tools
Job Responsibility
Job Responsibility
  • English only OK!
  • Three times meals in the office
What we offer
What we offer
  • 健康保険
  • 厚生年金保険
  • 雇用保険
  • Fulltime
Read More
Arrow Right

Senior Java Engineer

ArkCase is looking for a Senior Java Engineer to join our team and help moderniz...
Location
Location
Macedonia, Republic of , Skopje
Salary
Salary:
Not provided
armedia.com Logo
Armedia
Expiration Date
Until further notice
Flip Icon
Requirements
Requirements
  • Java (core language)
  • Spring Framework
  • Kubernetes, managed via Rancher
  • ActiveMQ (event-based architecture)
  • Solr (search)
  • S3 / MinIO (document storage)
  • Pentaho (reporting)
  • PDFTron (document viewing & redaction)
  • Samba (centralized user management)
  • Node.js / Angular / AngularJS (web UIs)
Job Responsibility
Job Responsibility
  • Transition containerized applications from in-pod logging to centralized log aggregation (e.g., syslog)
  • Significantly reduce Java/Spring application startup time
  • Refactor synchronous operations (e.g., page counting, file detection) to asynchronous flows
  • Analyze memory and performance bottlenecks
  • replace inefficient libraries (e.g., PDFBox)
  • Identify and modularize monolithic components into microservices (e.g., PDF rendering, audit history, uploads)
  • Convert our Spring modulith into a distributed service architecture (message or gRPC-based)
  • Enforce strict plugin architecture with runtime plugin loading
  • Implement constant-time request handling with async side-effect processing
  • Enable OAuth and JWT-based authentication to replace Spring Context - based mechanisms
  • Fulltime
Read More
Arrow Right

Senior Java Engineer

Yopeso has been developing a diverse range of software products, from large-scal...
Location
Location
Moldova , Chisinau
Salary
Salary:
Not provided
yopeso.com Logo
Yopeso
Expiration Date
Until further notice
Flip Icon
Requirements
Requirements
  • Strong experience in Java development (Java 11/17)
  • Proficient with the Spring framework (Spring Boot, Spring MVC, Spring Data)
  • Hands-on experience with AWS services (RDS, SQS, Athena, Glue, EMR, Iceberg)
  • Solid experience with PostgreSQL databases
  • Familiarity with messaging and event-driven systems (Kafka)
  • Experience in developing SOAP web services
  • Excellent problem-solving skills with attention to detail and ability to debug complex systems
  • Strong communication and collaboration skills
Job Responsibility
Job Responsibility
  • Design, develop, and maintain robust Java applications using the Spring framework (Spring Boot, Spring MVC)
  • Build scalable cloud solutions leveraging AWS services, including RDS, SQS, Iceberg, Athena, Glue, and EMR
  • Design and optimize PostgreSQL database schemas and queries for performance and reliability
  • Develop and manage data flows and pipelines, ensuring efficient and reliable processing
  • Work with messaging systems such as Kafka to handle high-volume data streams
  • Develop and maintain SOAP web services where required
  • Collaborate with cross-functional teams, including Data Engineers, DevOps, and Product Owners, to define, design, and deliver new features
  • Troubleshoot, debug, and optimize applications and data processes for performance, scalability, and reliability
  • Maintain high standards of code quality, automation, and best practices
What we offer
What we offer
  • Competitive remuneration
  • Sports/leisure benefit
  • 20 sick leave days paid at 100%
  • 32 calendar days of vacation
  • Team events, online, at the office or outside
  • Professional development plan with guidance and mentorship
  • Training and development opportunities with allocated budget
  • Professional Certifications
  • Optional medical insurance
Read More
Arrow Right

Senior Java Engineer

Yopeso has been developing a diverse range of software products, from large-scal...
Location
Location
Salary
Salary:
Not provided
yopeso.com Logo
Yopeso
Expiration Date
Until further notice
Flip Icon
Requirements
Requirements
  • Strong experience in Java development (Java 11/17)
  • Proficient with the Spring framework (Spring Boot, Spring MVC, Spring Data)
  • Hands-on experience with AWS services (RDS, SQS, Athena, Glue, EMR, Iceberg)
  • Solid experience with PostgreSQL databases
  • Familiarity with messaging and event-driven systems (Kafka)
  • Experience in developing SOAP web services
  • Excellent problem-solving skills with attention to detail and ability to debug complex systems
  • Strong communication and collaboration skills
Job Responsibility
Job Responsibility
  • Design, develop, and maintain robust Java applications using the Spring framework (Spring Boot, Spring MVC)
  • Build scalable cloud solutions leveraging AWS services, including RDS, SQS, Iceberg, Athena, Glue, and EMR
  • Design and optimize PostgreSQL database schemas and queries for performance and reliability
  • Develop and manage data flows and pipelines, ensuring efficient and reliable processing
  • Work with messaging systems such as Kafka to handle high-volume data streams
  • Develop and maintain SOAP web services where required
  • Collaborate with cross-functional teams, including Data Engineers, DevOps, and Product Owners, to define, design, and deliver new features
  • Troubleshoot, debug, and optimize applications and data processes for performance, scalability, and reliability
  • Maintain high standards of code quality, automation, and best practices
What we offer
What we offer
  • Competitive remuneration
  • Remote work
  • 24 days off per year and floating days
  • Private clinic health services Regina Maria Medical Insurance
  • Flexible benefits through Up multibenefits platform
  • Referral bonus scheme
  • Team events, online or at the office
  • Training and development opportunities with allocated budget
  • Professional Certifications
  • Knowledge sharing context
Read More
Arrow Right

Senior Engineer - Java Spring Boot

Sopra Steria is seeking a Senior Software Engineer with expertise in Java Spring...
Location
Location
India , Noida
Salary
Salary:
Not provided
https://www.soprasteria.com Logo
Sopra Steria
Expiration Date
Until further notice
Flip Icon
Requirements
Requirements
  • Java Spring boot
  • SOAP based Webservice
  • REST full Webservice
  • Basic SQL, PL/SQL
  • JBoss 4.x
  • Unix shell scripting
  • Experience of Software Engineering Process
  • Understanding Design & awareness of J2EE Design Patterns
  • Unit Testing
  • Best practices
What we offer
What we offer
  • Inclusive and respectful work environment
  • Open to people with disabilities
Read More
Arrow Right