Jobs Java

Job Description

• Strong proficiency in Java (JDK17+) and Spring Framework (2.x–5.x).
• Understanding of REST APIs and JSON-based integrations.
• Solid SQL experience (queries, joins, optimization).
• Proficiency with GitLab, AWS and CI/CD workflows.
• Familiarity with UI frameworks (vue.js).
• Good communication and task management skills.

Job Responsibilities

• Design, develop, and maintain scalable, API-driven backend services.
• Align backend systems with modern data modeling and orchestration standards.
• Collaborate with engineering, product, and design teams to ensure seamless integration across the broader data platform.
• Implement and refine RESTful APIs following established design guidelines.
• Troubleshoot complex technical issues and optimize performance of applications.
• Collaborate closely with cross-functional teams, including Product Manager, FE Engineers, and Product Owners, to gather requirements and deliver high-quality solutions.

Department/Project Description

Client is a leading global Contract Research Organization (CRO) that provides Phase I-IV clinical trial management, market access, and technology solutions with over 30 years of experience.

We are looking for a Middle Backend Engineer to join a product-driven fintech environment focused on building next-generation deposit solutions for European banking partnerships. 

You will become part of a cross-functional team responsible for a core deposit platform that powers both B2C and B2B channels. The platform enables banks to offer competitive deposit products while ensuring a seamless and secure customer experience. The system processes millions of requests daily and plays a critical role in handling deposit orders and maintaining their lifecycle over time. This is a high-load, business-critical domain where precision, reliability, and resilience are non-negotiable.
If you enjoy working on scalable distributed systems, care about data integrity, and want to have real impact in a fintech product — this role is for you.

Responsibilities:

• Designing, developing, and maintaining backend microservices in a modern Java ecosystem;
• Building and supporting complex integrations with third-party CMS tools;
• Ensuring accuracy and consistency of financial and accounting-related data;
• Improving system resilience, scalability, and performance;
• Collaborating closely with cross-functional teams in a product-oriented setup;
• Participating in discovery, refining requirements, and contributing to well-defined user stories.

Requirements: 

• Strong hands-on experience with Java and Spring Boot (modern versions);
• Solid background in microservices and event-driven architectures;
• Experience with Kafka and AWS-based environments;
• Understanding of high-load and distributed systems;
• Strong communication skills and experience working in cross-functional teams;
• Experience participating in discovery and requirements analysis.

Nice to have:

• FinTech or financial domain experience;
• Interest in product thinking and contributing beyond pure engineering.

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

COMPANY OVERVIEW:

IT product company is a leader in providing advanced telecommunications and IoT solutions to enterprises and enterprise customers worldwide. The company's mission is to empower communication, which is why we offer a wide range of communication products that are carefully customized to meet the specific requirements of our customers. Regardless of the industry or size of the organization, we develop optimal solutions to meet your unique needs.


 

POSITION SUMMARY:

As a  Java Developer, you will join our team building cutting-edge telecommunications and IoT solutions. This role is a great opportunity for motivated juniors and final-year technical students to gain hands-on experience with Java, Spring, and modern cloud technologies while working on international projects.

RESPONSIBILITIES:

• Develop and maintain server-side components using Java EE/Jakarta EE (EJB, Servlets, JMS, etc.).
• Participate in the design and implementation of new features for telecommunications and IoT platforms.
• Work with TCP/UDP protocols for real-time communication solutions.
• Debug, troubleshoot, and optimize application performance.
• Collaborate with senior developers, QA, and DevOps engineers in delivering high-quality solutions.
• Write clean, maintainable code and assist in creating automated tests.

REQUIREMENTS:

• Basic knowledge of Java SE/EE (coursework, internship, or project experience).
• Familiarity with Enterprise Java concepts (EJB, Servlets, JMS, Jakarta EE).
• Understanding of network fundamentals with focus on TCP and UDP protocols.
• Experience with SQL/NoSQL databases (e.g., MySQL, PostgreSQL, MongoDB).
• Basic knowledge of REST APIs and socket programming.
• Understanding of version control systems (Git).
• English — Intermediate (documentation and written communication).

COMPANY OFFERS:

• Employment in according to the Ukrainian labor law (24 days of vacation, sick leave).
• Opportunity to work with advanced telecommunications technologies and gain hands-on experience.
• Exposure to a global clientele and the opportunity to contribute to the development of effective solutions.
• Mentorship from experienced professionals in the telecommunications industry.
• Collaboration and a supportive work environment.
• Competitive compensation package and growth prospects.

N-iX is looking for a Senior Back-end (Java+Python) engineer to join our team. 
 

The Backoffice Support Team (BST) owns the systems and tools used internally by our backoffice teams, including Customer Service and Operations, to manage customers and commercial partners. The team is responsible for the development, maintenance, and continuous improvement of internal support platforms and workflows.

This includes:
● Zendesk is the main ticketing system
● Postbox, the internal customer communication area
● Custom integrations with core systems and other internal services

BST plays a key role in enabling operational efficiency, ensuring that internal users have reliable, scalable, and well-integrated tools to handle customer and partner interactions effectively.

Technical Skills (Must-Haves)

Experience:

• University degree in Computer Science or a related field, or equivalent practical experience
• 5+ years of backend engineering experience, with a strong background in Java and Python development
• Strong expertise in:
  • Java 21, Spring Boot 3
  • Python 3 (FastAPI experience is a plus)
  • MySQL 8, Hibernate
  • Apache Kafka
• Solid experience with AWS (S3, RDS, Lambda, Airflow) and cloud-native development
• Experience with CI/CD pipelines (GitLab, Harness)
• Hands-on experience with Kubernetes
• Experience using AI-assisted development tools
• Familiarity with monitoring tools: Grafana, Datadog
• Strong communication skills, ability to run discovery, gather requirements, and write detailed user stories
• English level: Upper-Intermediate or higher

Nice-to-Haves:

• Experience in financial technologies
• Familiarity with Zendesk administration or JavaScript customizations
• Exposure to TypeScript, React, or React Native (collaboration with frontend teams)

Your Responsibilities

• Develop, optimize, and maintain backend infrastructure supporting internal tools, Zendesk integrations, and custom services.
• Maintain and extend the internal Postbox system, ensuring stable, real-time communication between customers and the business.
• Collaborate closely with Product, Platform, and Frontend teams to deliver end-to-end solutions.
• Ensure the accuracy and reliability of accounting-related data and the overall resilience of internal services.
• Participate in requirements discovery, refine user stories, and contribute to technical design and architecture discussions.
• Take part in an on-call rotation to support mission‑critical systems.
• Own services from concept to production, including development, deployment, monitoring, and continuous improvement.
• Continuously improve team processes, code quality, and technical foundations.

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

About us

RAW is a new studio with a conviction to create something that stands out in the sea of sameness. We develop innovative, easy-to-understand and highly entertaining slot games for the gaming industry. We were founded in March 2021, by well-known industry experts with strong investment backing.

 
At RAW iGaming, we believe in the fundamental principles of equality and diversity. We are committed to fostering an inclusive environment where everyone, regardless of gender, race, age, sexual orientation or beliefs, is respected and valued. This commitment is integral to our culture and drives our efforts to ensure equal opportunities and create a diverse and dynamic workforce.

Role Purpose

• Design and implement scalable, robust and reliable backend systems to support the live casino platform, ensuring they are secure and performant.

• Work closely with cross-functional teams including product owners, software developers, and QA engineers to deliver new features and functionality to the platform.

• Ensure that all backend systems are well-documented and well-tested, and that appropriate monitoring and alerting is in place to detect and resolve issues as they arise.

• Mentor and coach junior developers, helping them to grow their skills and knowledge in backend development, software engineering best practices and casino domain knowledge.

• Stay up-to-date with the latest trends, technologies and best practices in backend development, and actively apply them to improve the platform.

Accountabilities include, but not limited to

• Computer Science

• Software Development

• Programming

Knowledge, Skills & Experience

• At least 5 years of professional experience in backend development with a focus on high-availability, high-performance, scalable and secure systems.

• Knowledge and experience of the Live Casino Game Shows, or from a similar broadcasting application (dealing with streaming, camera switching, tally lights and similar) is highly considered.

• Proficiency in at least one backend programming language such as Java, Python or Go.

• Experience with databases such as PostgreSQL or MySQL, and caching systems such as Redis or Memcached.

• Experience with cloud infrastructure such as AWS or GCP, and containerization technologies such as Docker or Kubernetes.

• Strong understanding of software engineering principles, including design patterns, algorithms, and data structures.

• Excellent written and verbal communication skills, with the ability to collaborate effectively with cross-functional teams.

• A passion for software development and a desire to continuously learn and improve.

The budget for this role is 3000 - 3500 eur gross.

Benefits:

• 25 days paid vacation days
• paid public holidays
• Private health insurance (for candidates residing in Ukraine) 
• Additional marriage leave
• Additional paternity leave
• 5 days of paid sick leave
• Professional development support
• Department team building activities
• HR support

N-iX is a global software development company founded in 2002, connecting over 2,400+ tech professionals across 40+ countries. We deliver innovative technology solutions in cloud computing, data analytics, AI, embedded software, IoT, and more to global industry leaders and Fortune 500 companies. Join us to create technology that drives real change for businesses and people across the world.

We are looking for experienced Senior Java Software Engineer to join our team. Our client is one of the world's largest fashion retailers selling in 215 markets through its online platform or its 6,477 stores in 95 markets. By working closely together as a single company globally focused on the key elements of fashion production – design, manufacture, distribution, and retail. All the production is founded on three pillars - flexibility, digital integration, and sustainability.

Responsibilities:

• Participate actively and constantly in the design and development of APIs
• Ensure the availability and resilience of its services that help the development of the company’s business
• Ensure the quality of development and code cleanliness (Clean Code)
• Automatic and manual exploratory execution during the development to verify that the acceptance criteria are covered
• Maintain and evolve automated test cases with QA
• Work in close contact with the Product Owner and support in the technical definition of product backlog items
• Guarantee continuous deployment, write qualitative, maintainable code with extensive test coverage in a fast-paced professional software engineering environment
• Suggest technical and functional improvements to add value to the product

Requirements:

• 5+ years of software development experience
• 4+ years of extensive Java development experience, Maven
• 2-3 years of Spring framework and building Spring web applications
• Understanding and experience developing and deploying microservices
• Experience developing REST interfaces, OpenApi
• Excellent design, coding, and debugging skills
• OOP, OOD, DDD. Design Patterns proficient
• Working knowledge of relational databases, NoSQL technologies – Mongo DB
• Working knowledge of Kafka, Kafka streaming (can be optional)
• Experience with different clouds – AWS, Azure
• Working knowledge of OpenShift, Kubernetes
• Familiar with GrayLog, Grafana
• Working experience in an Agile environment, a clear understanding of Agile methodologies mindset, and development practices applicable to them
• Excellent communication, organizational, and facilitation skills, product-oriented mindset, focus on team results, willingness to continuous personal and team improvements, leadership qualities, and resilience
• Upper-Intermediate/Advanced English level (there will be a lot of communication with the client)
•  

Nice-to-have:

• ES6, React, Redux, Redux-saga TypeScript, CSS, RESTful APIs
• Frontend testing and performance optimization

• CSS3/SCSS/HTML5, modern responsive design techniques

   

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

🚀 Who we are:

Adaptiq is a technology hub specializing in building, scaling, and supporting R&D teams for high-end, fast-growing product companies in a wide range of industries.

📍About the Product:
Over the past few years Coro has received $275M in funding and is one of the fastest growing Cybersecurity companies in the world. The funding is primarily being used to enhance the Coro Cybersecurity SaaS platform and for additional headcount growth, as Coro continues to expand globally.   

Coro started in Tel-Aviv, Israel and is also headquartered in Chicago, IL with additional offices in New York, London, and remotely across the globe. As a global organization, Coro gives you the ability to work with people and teammates from around the world. 

Coro’s AI enabled Modular Cybersecurity Platform is the only one in the industry specifically designed to provide Mid-Market customers with scalable and affordable “enterprise grade” protection for all of their priority threat vectors. 

About the Role:
This is a hands-on leadership role for a Backend Team Lead who will guide a team of backend engineers while staying directly involved in coding, architecture, and delivery. You will work on core backend systems behind Coro’s cybersecurity platform, building and scaling high-load services that process large volumes of security and telemetry data in real time.

These systems are responsible for collecting, processing, and analyzing data from multiple sources, including endpoints, cloud environments, and product integrations. They support critical product capabilities such as threat detection, security analytics, anomaly identification, and automated response workflows, making this a mission-critical leadership role at the core of Coro’s product.
 

If you are looking for a role where you can combine leadership with technical ownership, shape team culture, and build highly scalable backend services for a fast-growing global cybersecurity platform, this is the role for you

📍Key Responsibilities:

• Lead a team of highly skilled and passionate developers
• Partner with the Product Manager to build the road-map for the team
• Understand the team objectives and key results and make sure that the team are on the path to achieving them
• Participate in making decisions on the architecture and technologies
• Conduct the team ceremonies: Daily stand-ups, sprint planning and retro meetings
• Help create and enforce strong engineering standards, code quality, and best Engineering practices
• Take an active part in the implementation (hands-on) of the team’s various services and features
• Help your team members grow by mentoring them, building their growth plan with them and enable them opportunities to implement it

📍Required Competence and Skills:

• 6+ years of backend/server-side development with Java
• 2+ years of proven experience leading an engineering team 
• Strong hands-on experience with Spring Framework and MongoDB
• Deep understanding of multithreading and concurrency
• Solid knowledge of OOP concepts and design patterns
• Proven experience with microservices architecture
• Experience working with high-load backend systems
• Proficiency in cloud-native environments (preferably AWS)

Nice to have:

• Experience with Redis and RabbitMQ
• Experience with Elasticsearch/OpenSearch 
• Familiarity with Docker / Kubernetes
• Experience in Cybersecurity domain 

Why Us?

We provide 20 days of vacation leave per calendar year (plus official national holidays of a country you are based in).

We provide full accounting and legal support in all countries we operate.

We utilize a fully remote work model with a powerful workstation and co-working space in case you need it.

We offer a highly competitive package with yearly performance and compensation reviews.

For our client we are looking for a Kafka Engineer / Architect (1 FTE)

Responsibilities

• Setting up a central Kafka instance
• Configuring and managing message brokers (Kafka)
• Operating and scaling Kafka-based systems
• Security hardening and performance optimization

Core Skills

• Deep, multi-year hands-on Kafka experience
• Strong background in configuring Kafka environments
• Experience managing message broker services
• Security, scaling & operational expertise
• Optional: Experience in AWS Cloud operations

Project Details

Start: ASAP

Workload: Full-time

Duration: 5–6 months

Location: Remote

Project Language: English

About Us: InnovatelU is a dynamic tech company delivering cutting-edge solutions. We're looking for a passionate Java Developer to join our team. If you have a solid Java foundation, are eager to grow, and learn quickly, we want to hear from you! 

Requirements: 
- Strong knowledge of Java 
- Knowledge of Spring (Spring Core, Spring AOP, Spring MVC, Spring Security, Spring Boot) 
- Familiarity with REST APIs, web services 
- Proficiency in version control tools (Git) 
- Experience with build tools like Maven and Gradle 
- Experience with relational databases (PostgreSQL) 
- Expertise in containerization (Docker) 

- Experience in unit and integration testing 
- Strong communication skills and teamwork ability 
- English level: Intermediate or higher 

Will Be a Plus: 

- Solid understanding of design patterns 

- Experience with NoSQL databases like MongoDB and Redis 

- Familiarity with messaging systems like Kafka and RabbitMQ 

- Experience with microservices architecture 

Responsibilities: 

- Collaborate with senior developers and project managers 

- Assist in designing, coding, and testing applications 

- Write well-designed, efficient, and testable code 

- Participate in code reviews 

- Debug and resolve technical issues 

- Contribute to application documentation 

Interview Stages: 

1. Test Task: 1 hour 

2. HR Interview: 30 minutes 

3. Technical Interview: 1 hour 

We Offer: 

- Full Remote 

- Constant support and mentoring 

- Paid 5 working days of sickness per a year; 

- Paid all official Ukrainian holidays; 

- 18 working days of vacation per a year; 

- Opportunity for professional growth and career development 

If this sounds interesting to you, let's talk!

Ajax Systems is an international technological company and Europe’s largest security system manufacturer. In addition, the company offers solutions for video surveillance, smart homes, fire detection, and flood prevention. The product portfolio includes 280 wireless and wired devices for security and automation. Today, Ajax protects over 4.5 million users in 187 countries worldwide. 

We are looking for a smart, experienced, and technically proficient Senior Java Developer to join our team in Kyiv office.

Required Experience:

- Java: 5+ years of professional backend development in enterprise environment
- Kotlin: Knowledge and practical work experience
- Java Concurrency: Strong understanding and practical application experience

Architecture & Design
- Understanding of SOA, microservice, and event-driven architecture
- Cloud development principles with practical AWS experience
- Ability to scale and ensure high availability of loaded systems

Technologies & Tools

Required:

- Kafka, MongoDB, NATS
- Enterprise-grade stack (messaging brokers, in-memory storages, NoSQL, key-value databases)
- Docker and Kubernetes (containerized applications)
- Git, Gradle, Jenkins
 

Nice to Have:
- Redis, Netty, Akka, gRPC, Project Reactor
 

We offer:
- The opportunity to share and implement your own ideas that could impact products and production
- Work with a motivated team and an environment with a zero-bullshit culture
- Competitive salary
- Medical insurance
- Corporate English classes

About Flamingo

Flamingo is revolutionizing the Managed Service Provider (MSP) industry with an AI-driven, open-source platform for IT and security. Our goal is to empower MSPs with automation, optimization, and scalability tools to enhance their operations. 

Role Overview

As a Senior Back-end Engineer (Java) at Flamingo, you will design and develop scalable, high-performance back-end services and APIs using Java and Spring Boot. You will be responsible for implementing event-driven microservices, optimizing system performance, and ensuring high availability as we scale our platform. Your expertise in processing high-volume logs and integrating multiple data sources will be critical to building a robust and efficient system.

Key Responsibilities

• Design and develop scalable backend services and APIs using Java (Spring Boot).
• Architect and implement event-driven microservices with Kafka and RabbitMQ.
• Process and analyze high-volume logs efficiently to ensure scalability and real-time insights.
• Integrate and manage multiple data sources, including SQL, NoSQL, and streaming data.
• Optimize database performance using PostgreSQL, Redis, and Elasticsearch.
• Implement authentication and authorization mechanisms with OAuth, JWT, and Keycloak.
• Collaborate with front-end and DevOps teams to build a seamless and resilient system.
• Ensure code quality through automated testing, CI/CD pipelines, and best engineering practices.

Qualifications

Must-Have:

• 5+ years of experience in backend development with Java and Spring Boot.
• Experience in microservices architecture, including event-driven systems (Kafka, RabbitMQ).
• Strong knowledge of RESTful APIs, GraphQL, and WebSockets.
• Experience processing high-volume logs and working with log management tools (ELK stack, Loki, Fluentd, OpenTelemetry).
• Experience working with multiple data sources, including relational (PostgreSQL) and non-relational (Redis, Elasticsearch) databases
• Experience with containerization (Docker, Kubernetes) and cloud platforms (AWS/GCP).
• Understanding of security best practices in backend development.

Nice-to-Have:

• Experience with functional programming in Java or Scala.
• Familiarity with distributed tracing (e.g., Jaeger, Zipkin) for microservices.
• Knowledge of cloud-native architectures and serverless frameworks.
• Exposure to message queues and event sourcing.

Why Join Flamingo?

• High-impact role: As a back-end engineer, your contributions will directly shape Flamingo’s product and technology.
• Ownership & Equity: Competitive compensation, including significant equity in an early-stage, high-growth startup.
• Innovative Tech Stack: Work with cutting-edge open-source technologies in AI, automation, and security.
• Remote-first Culture: Flexibility to work from anywhere while collaborating with a top-tier team.
• Mission-Driven Company: Join a team passionate about disrupting the MSP industry and making enterprise-grade security and IT automation accessible to all.

Ajax Systems is an international technological company and Europe’s largest security system manufacturer. In addition, the company offers solutions for video surveillance, smart homes, fire detection, and flood prevention. The product portfolio includes 280 wireless and wired devices for security and automation. Today, Ajax protects over 4.5 million users in 187 countries worldwide.

We are looking for a smart, experienced, and technically proficient Java Developer to join our team in Kyiv office.


Required experience:

— 3+ years of backend or full-stack development
— Java: solid understanding, ability to read and extend existing services
— Experience building integrations with third-party APIs (Google Workspace, Atlassian, GitHub, etc.)
— Familiarity with webhook-based and event-driven integration patterns
— Understanding of CI/CD pipelines and release management concepts

 

Nice to Have:

— Python: strong practical experience (scripting, REST APIs, automation)
— Google Chat API or similar messaging platform bot development
— Confluence / Jira API integrations
— iOS / Swift basics for lightweight internal mobile tools
— Grafana, Prometheus or similar for internal dashboards
— PostgreSQL / SQLite for lightweight persistence
— Familiarity with release automation tools (e.g. Jenkins, GitHub Actions, ArgoCD)

We offer:

— The opportunity to share and implement your own ideas that could impact products and production
— Work with a motivated team and an environment with a zero-bullshit culture
— Competitive salary
— Medical insurance
— Corporate English classes

This vacancy requires office attendance in Kyiv

Responsibilities

• Work in SCRUM team 
• Design and develop high-load microservices
• Write high-quality code covered with different levels of tests
• Maintain services on production and assure their stability and performance
• Provide code review for teammates 
• Contribute to the Company’s development processes and practices 

Requirements

• Writing code in a clean and maintainable manner.
• Solid experience with Java 8+ 
• Experience with SQL/NoSQL databases
• Understand microservice architecture patterns.
• Good at Spring framework.
• Experience with REST, messaging systems.
• Ability to cover code by different types of tests.
• Understanding of SOLID principles
• Experience with Git 
• Excellent troubleshooting skills.
• Good communication skills.
• Intermediate+ English

Would be great to have:

• Experience with Kafka, MySQL, Redis, Aerospike.
• Experience with Spring Boot, Spring Cloud
• Experience with Docker, Kubernetes
• Experience in high-load

What we offer:

• International company with several offices in different locations : Tel-Aviv, Kyiv, Warsaw, Limassol.
• Granting an Option;
• A professional environment with great people to work with;
• Competitive salary, performance review;
• Flexible working hours, no one here tracks your work time because our culture is built on trust and cooperation;
• Social and welfare packages;
• 20 working days paid vacation and 100% sick leaves coverage;
• Opportunities to make a difference, to develop and grow;
• Regular corporate celebrations, team buildings and fun activities;
• Comfortable office close to the metro station. Our Kyiv office is open 24/7 with all safety and health measures in place.

We're seeking a Software Java Engineer with 5+ years of experience to help build and scale the backend services that power our content discovery, licensing, and delivery platforms across all of our content libraries. You'll join a team that's passionate about clean architecture, performance, and solving complex challenges at scale. If you thrive in a collaborative environment and love building robust APIs, data-driven systems, and data modeling we'd love to hear from you.

What You'll Do:

• Design, implement, and maintain backend services using Java, Spring Boot, and the broader Spring ecosystem.
• Build and evolve RESTful APIs that power content metadata, search, recommendation, and licensing workflows.
• Work with Kafka to build event-driven and real-time processing systems.
• Use SQL and work with relational databases to support structured content metadata.
• Partner with data and analytics teams to model data in data warehouses, supporting reporting and analytics use cases.
• Build and maintain DBT models to transform raw data into clean, usable datasets.
• Leverage the AWS ecosystem for service deployment, data storage, and pipeline orchestration.
• Contribute to technical discussions, system design, and code reviews.

Requirements:

• 5+ years of professional backend development experience.
• Strong proficiency in Java, with experience using Spring Boot and Spring Framework.
• Experience designing and consuming REST APIs.
• Familiarity with Kafka or other message streaming platforms.
• Solid understanding of relational databases and writing optimized SQL.
• Comfortable working with GraphQL.
• Exposure to Python or willingness to learn.
• A collaborative mindset with strong communication skills.
• A passion for clean code, scalable systems, and continuous learning.

Nice-to-Have:

• Practical experience working with data warehouses and DBT for data transformation and modeling.
• Hands-on experience working with the AWS ecosystem (especially Aurora/Dynamo DB).
• Experience working with Node.js and/or Typescript.
• Knowledge of containerization and orchestration (Docker, Kubernetes).
• Experience with Databricks/Snowflake.
• Background in building systems for search, metadata enrichment, or digital asset management.

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

We are looking for an experienced Backend Engineer to join a well-established development team working on large-scale event-driven systems.

Our client is an integrated shipping services company that has established itself as an independent carrier with a fresh and innovative approach to global logistics. The company operates a smart and efficient worldwide network, delivering reliable shipping services and ensuring stable operations for customers across the globe.

In this role, you will design and build event-driven solutions using Kafka and related technologies, focusing on stream processing applications, data pipelines, and monitoring solutions built with the ELK stack.

Responsibilities:

• Design and develop event-driven architectures using Apache Kafka and Kafka Streams;
• Build and maintain stream processing applications and data pipelines;
• Design and implement ELK pipelines, indexes, dashboards, and alerts;
• Lead architecture discussions and contribute to the design of Kafka-based event streaming systems;
• Configure Kafka connectors and manage Kafka topics;
• Develop scalable event-based processing applications according to architecture and design specifications;
• Support development and QA teams throughout the software development lifecycle;

• Contribute to monitoring, observability, and reliability of streaming platforms.

   

Requirements:

• 4+ years of experience building Kafka-based applications;
  • Strong experience with Kafka ecosystem components:
  • Kafka Streams (including Processor API)
  • Kafka Connect
  • Schema Registry
• 4+ years of experience with Java and Spring, implementing Kafka Streams applications;
• Hands-on experience with the ELK stack (Elasticsearch, Logstash, Kibana) for monitoring and observability;
• Experience with Logstash Configuration Language (LCL) for configuring pipelines (inputs, filters, outputs);
• Solid knowledge of SQL and Oracle PL/SQL, including query optimization;
• Experience working with REST APIs;
• Experience using Kafka CLI tools and REST APIs for managing Kafka resources;
• Experience working in Linux/Unix environments;
• Experience with IntelliJ IDEA;

• Experience contributing to DevOps processes for Kafka and ELK.

   

Nice to Have:

• Experience managing and maintaining ELK servers;
• Experience with Confluent Kafka Cloud;
• Experience with Python;

• Exposure to AI/ML-related projects.

   

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