Jobs Java

About the Role

We are looking for a Full-Stack Developer to join an active GIS product team building geospatial data solutions. You will work across the entire stack — from server-side logic and API development to building rich, interactive map-based interfaces with cutting-edge GIS visualization libraries. The product is an MVP already in production, and you will be a core contributor to its ongoing development. This role is ideal for someone who enjoys working across the full technology spectrum, from database queries to 3D map rendering.
 

Duration

3–6 months (with potential extension)

Key Responsibilities

• Design, develop, and maintain backend services and REST APIs using Spring Boot and Java
• Build and maintain interactive geospatial UI components using OpenLayers, Potree, and three.js
• Work with PostgreSQL + PostGIS for geospatial data storage, querying, and optimization
• Implement and maintain authentication/authorization flows using Keycloak (OIDC)
• Integrate with Apache-based services and manage Cargo-related tooling
• Develop responsive, performant frontend interfaces consuming REST APIs
• Implement GUI features and user workflows for GIS data exploration and analysis
• Collaborate with DevOps, the Product Owner, and the wider team in daily stand-ups
• Participate in sprint planning, retrospectives, and code reviews
• Contribute to technical documentation and onboarding materials

Required Skills & Experience

• 3+ years of hands-on full-stack development experience
• Strong backend skills with Java and Spring Boot
• Solid frontend skills with JavaScript (ES6+)
• Experience with at least one of: OpenLayers, Potree, or three.js
• Working knowledge of PostgreSQL with PostGIS extension
• Experience with REST API design, development, and consumption
• Experience with Keycloak, OIDC, or similar identity management solutions
• Familiarity with Docker and containerized deployments
• Comfortable working with Git-based version control (GitHub/GitLab/Bitbucket)
• Good communication skills in English

Tech Stack

• Java, Spring Boot (backend)
• JavaScript / ES6+ (frontend)
• OpenLayers, Potree, three.js
• PostgreSQL + PostGIS
• REST APIs
• Keycloak / OIDC
• Docker
• Apache / Cargo
• Git (GitHub / GitLab / Bitbucket)

Nice to Have

• Experience in GIS / geospatial domain or data-intensive applications
• Knowledge of WebGL or 3D rendering concepts
• Experience with Apache-based server configurations
• Knowledge of Cargo (Rust tooling) for ancillary services
• Experience with TypeScript
• Experience working in outstaffing / staff augmentation engagements

Project Description:

The SEM product is embedded within the Geosciences Suite of Applications. This application has multiple views consisting of both 2D and 3D visualizations. The current data visualization is not sufficient for what we would like it to be. This role is expected to work with the lead and the product owner to understand the current shortcomings, investigate and research potential solutions, propose these solutions to the teams, and then work on the implementation of the agreed upon work. To get to this stage, the developers will also need to learn the inner workings of the visualization framework within Geoscience.

Responsibilities:

• Design, develop, and maintain graphics-intensive modules within the Geoscience platform using Java and OpenGL.
• Implement advanced 2D and 3D visualization features for seismic, geological, and geospatial data.
• Optimize rendering performance and ensure cross-platform compatibility, particularly in Linux environments.
• Collaborate with geoscientists and software engineers to translate domain-specific requirements into technical solutions.
• Participate in code reviews, testing, and documentation to maintain high-quality software standards.
• Stay updated with the latest developments in graphics technologies and geoscience applications.

Mandatory Skills:

Java

Linux

OpenGL (Open Graphics Library)

Mandatory Skills Description:

• Bachelor's or Master's degree in Computer Science, Geoscience, or a related field.
• 5+ years of professional experience in Java OR C++ development with a focus on graphics programming.
• Proficiency in OpenGL and related graphics libraries for rendering complex datasets.
• Strong experience working in Linux environments, including shell scripting and system optimization.
• Excellent problem-solving skills and the ability to work collaboratively in a multidisciplinary team.

Nice-to-Have Skills Description:

• Experience with geoscience software platforms.
• Familiarity with geoscience data formats and visualization techniques.
• Knowledge of additional programming languages such as Python, Java.
• Understanding of GIS technologies and spatial data analysis.
• Experience with agile development methodologies and version control systems like Git

Languages:

English: B2 Upper Intermediate

Dripify is a pioneering remote-first IT product company specializing in the development of outreach automation products. We empower businesses by enhancing the efficiency and organization of their hiring, sales, and marketing communication processes. Our innovative solutions redefine the way companies approach outreach, making interactions more effective and seamless.

We are seeking a dedicated Senior Java Engineer to join our team at Dripify, a leading B2B SaaS product company.

Project — dripify.com

Sales automation platform designed for marketers, business owners, and sales teams that allows automating cold-emailing and lead generation on LinkedIn.

Here is some of what you will do:

• Build modular, maintainable backend systems using Java 21+ and Spring Boot (MVC, REST, Security, Data, Messaging).
• Design and integrate performant, concurrent services using REST APIs and asynchronous messaging via SNS/SQS.
• Write tested, reliable code with a strong emphasis on unit and integration testing and CI/CD automation.
• Apply secure coding practices

• Collaborate on architecture and system design, taking full ownership of deliverables from implementation to deployment.

   

Requirements:

• 5+ years of hands-on Java development, with production experience in Java 21+
• Deep practical experience with Spring Boot modules
• Strong understanding of modular architectural principles and backend service decomposition
• Solid knowledge of Java concurrency and multithreaded environments
• Experience working with SQL databases (PostgreSQL preferred)
• Proficiency in RESTful API design and asynchronous messaging using SNS/SQS
• Familiarity with CI/CD pipelines and common quality gates (test coverage, static analysis, security scanning)
• Strong foundation in unit and integration testing
• Competence in Docker, Linux, and system-level debugging
• Understanding of logging and monitoring tools (e.g., ELK, Prometheus, Grafana)
• Commitment to secure development practices, including authentication, authorization, data validation, and least-privilege access

• Working knowledge of AWS services, including IAM, EC2, RDS, S3, CloudWatch, and Secrets Manager

   

Would be a plus:

• Experience with microservices architecture — including service decomposition, data ownership, and inter-service communication patterns
• Kubernetes (EKS or self-managed)
• Infrastructure-as-Code using Terraform
• AWS Certifications (e.g., Developer Associate, Solutions Architect)
• Bachelor’s or Master’s degree in Computer Science or a related field

Here is what we offer:

— 100% remote position, providing flexibility and work-life balance.
— Competitive salary reflecting your skills and expertise.
— 24 days of paid vacation per year to recharge and relax.
— 10 days of paid sick leave.
— Educational opportunities.
— Compensation budget for medical and hobby/sport expenses.
— Generous budget for birthdays and anniversaries.
— Online and offline team events.
— A collaborative and innovative work environment with passionate team members.

Hiring process:
✅Interview with Recruiter (45min) — ✅ Tech interview with Engineering Manager (1 hour) — Tech interview with Team Leader (1.5 hour) — ✅Reference check — ✅Offer

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 Senior Full-Stack developer (Java+React/Angular) to join our team. 

About the Role
Our client is looking for a Java Full‑Stack Developer to help accelerate product development for their flagship workforce management solution, HotSchedules Labor. You’ll work in a collaborative, international team with developers and QA engineers from Ukraine, Latin America, and the US. This role offers a great opportunity to strengthen your English skills, as many team meetings are held in English.

The team actively uses AI coding agents to speed up development and improve code quality. Candidates must be comfortable working with AI tools as part of their daily workflow.

Most engineers on the team are full‑stack developers, but current priorities lean more toward backend tasks. A solid background in backend development combined with practical front‑end experience (React 18, Redux) is required.

Responsibilities

• Develop new features based on the product backlog
• Build REST services for high-volume, low-latency web and mobile applications
• Design and implement database schema changes (MS SQL Server) and maintain Flyway migrations
• Maintain and refactor existing codebases, including legacy Backbone.js modules
• Troubleshoot and resolve production issues
• Collaborate with cross-functional teams to define, design, and deliver new features
• Leverage AI coding agents to accelerate development and enhance code quality
• Participate in code reviews and contribute to engineering best practices

Requirements

• Minimum 5 years of hands-on experience with Java
• At least 6 months of daily experience using AI coding agents (e.g., Claude Code, GitHub Copilot, Cursor) 
• Strong proficiency in the Spring Framework (Spring MVC, Spring Security, Spring JDBC)
• Experience with MS SQL Server and Flyway database migrations
• Practical experience with React 18/Angular, including Redux and component libraries (Material UI or similar)
• Experience with the Gradle build system
• Experience with AWS (S3, SQS, DynamoDB, Lambda) and Azure (Service Bus, Blob Storage) is a plus
• Working knowledge of Docker and Kubernetes is a nice-to-have
• Upper‑intermediate English or higher

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

N-iX is looking for Senior Java Engineer (with React/Angular experience) with AI to join our team. 

About the Role
Our client is looking for a Java Full Stack Engineer with AI to help accelerate product development for their flagship workforce management solution, HotSchedules Labor. You’ll work in a collaborative, international team with developers and QA engineers from Ukraine, Latin America, and the US. This role offers a great opportunity to strengthen your English skills, as many team meetings are held in English.

The team actively uses AI coding agents to speed up development and improve code quality. Candidates must be comfortable working with AI tools as part of their daily workflow.

Most engineers on the team are full‑stack developers, but current priorities lean more toward backend tasks. A solid background in backend development combined with practical front‑end experience (React 18, Redux) is required.

Responsibilities

• Develop new features based on the product backlog
• Build REST services for high-volume, low-latency web and mobile applications
• Design and implement database schema changes (MS SQL Server) and maintain Flyway migrations
• Maintain and refactor existing codebases, including legacy Backbone.js modules
• Troubleshoot and resolve production issues
• Collaborate with cross-functional teams to define, design, and deliver new features
• Leverage AI coding agents to accelerate development and enhance code quality
• Participate in code reviews and contribute to engineering best practices

Requirements

• Minimum 5 years of hands-on experience with Java
• At least 6 months of daily experience using AI coding agents (e.g., Claude Code, GitHub Copilot, Cursor) 
• Strong proficiency in the Spring Framework (Spring MVC, Spring Security, Spring JDBC)
• Experience with MS SQL Server and Flyway database migrations
• Practical experience with React 18, including Redux and component libraries (Material UI or similar)
• Experience with the Gradle build system
• Experience with AWS (S3, SQS, DynamoDB, Lambda) and Azure (Service Bus, Blob Storage) is a plus
• Working knowledge of Docker and Kubernetes is a nice-to-have
• Upper‑intermediate English or higher

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

Required Skills:

— At least 3 years of experience developing using the Java language.

— Experience with Spring Framework and application design patterns (Core, MVC, Security, Data).

— Experience with RDBMS and ORM.

— Experience with Docker, Jenkins, Maven, Tomcat.

— Experience with development and maintenance of REST API.

— Experience with frontend technologies (JavaScript, HTML, CSS).

— Experience with GIT and version control.

— Ability to work independently or collaboratively as needed.

— Effective English and communication skills.

— Excellent analytical and problem-solving skills.

— Well organized, self-motivated, quick learner and curious about how systems work and how they fail.

As a Plus:

— Experience with microservices (Spring Cloud)

— Great potential and willing to learn

— Passionate about software development;

— Eager to learn new things constantly.

We Offer:

— Possibility to propose solutions on a project;

— Dynamic and challenging tasks;

— Team of professionals;

— Competitive salary;

— Low bureaucracy;

— Continuous self-improvement;

— Long-term employment with paid vacation and other social benefits.

Responsibilities:

As member of our Software Engineering Group, you will responsible for detailed design, coding, testing, implementing, maintaining and supporting applications software in their technical area and toolset.

Analyze production issues as necessary to determine the cause of the issue and determine the necessary course of action for resolution. Implement data exchange integrations with our systems and participate in daily standup calls with leads and architects. Supports live systems to ensure business continuity.

About the Project:

We are building a web-based platform to manage IP telephony systems and their users. The platform connects different features like call analytics, call recordings, faxes, voicemails, billing systems, voice recognition, and number provisioning. Our solution helps manage IP telephony in one place, making it easier to handle communication and related tasks.

Delasport — Implementing Technological Solutions Here and Now.
Delasport is an iGaming Software company providing Sports Betting & Online Casino software, and turnkey B2B solutions. Established in 2010, Delasport delivers a one-stop-shop solution of Sports Betting and Online Casino from a White-Label, with a full range of management services to a Plug&Play iFrame and a complete Turnkey. We are looking for the top talents to join our team in R&D centre in Kyiv.
 

TECHNOLOGY STACK

Microservice architecture, Java 21, Java 25, Spring Boot 3.5+, JPA, JDBC, PostgreSQL, Kafka, Google Cloud Platform, Kubernetes, Docker, Testcontainers, Gradle
 

RESPONSIBILITIES

• Development of new business initiatives, an extension of existing ones
• Taking an active part in improvements and optimizations to the systems
• Resolve technical problems, critical thinking on the development approach
• Be part of a cross-functional team with end-to-end responsibility for the result
   

REQUIREMENTS

• 3+ years of commercial development experience using Java-related technologies
• 1+ years of working experience with API development
• Hands-on experience with microservice architecture
• Ambition to write high-quality code covered with integration tests
• Solid debugging and troubleshooting skills
• Proactive and result-oriented mindset
• Strong problem-solving skills
• Good level of English
   

WHAT WE CAN OFFER YOU

• Modern office in Podil with an uninterruptible power supply and the Internet
• Personal time off (21 business days of paid vacation, paid days on special occasions, sick leaves, emergency days off)
• Public holidays
• Health and life insurance with our broker, available starting from the month following the employee’s start date with the company
• Modern technical equipment
• English courses with native speakers
• Ukraine-based educational programs
• Sports activities reimbursement
• Corporate entertainments
• Happy hours on Fridays
• Gig contract support

We are looking for talented Senior Java Engineer to to join our AI project in Europe.

Our California-based customer is an American global e-commerce leader, one of the most popular and successful websites on the Internet. It provides platform services by connecting millions of sellers and buyers in more than 190 markets around the world. 

Responsibilities:

• Design and develop a robust and extensible Kotlin framework and platform for configuring and managing AI agents
• Write clean, maintainable, and efficient code that complies with our coding standards
• Ensure the performance, quality, and responsiveness of the framework/platform
• Identify and correct bottlenecks and errors
• Help to maintain code quality, organization, and automatization.

• Create and maintain technical documentation for the framework/platform

   

Requirements:

• At least 5 years of proficiency in Kotlin or Java
• Deep experience with the Spring Framework 
• Reactive tools experience (Project Reactor)
• Knowledge of different communication protocols such as REST, GraphQL, gRPC
• Experience with distributed systems
• Familiarity with tracing, metrics and monitoring best practices
• Experience of creating frameworks and platform for other developers 
• Proficiency in Maven or similar tools 
• Familiarity with NoSQL databases 

• Very good spoken and written knowledge of English language (C1)

   

Nice to have:

• Familiarity with GenAI, AI agents, machine learning, and natural language processing concepts is a plus
• Experience with MCP, A2A, RAG is a big plus
• Experience with event-driven architecture
• Experience with Docker and Kubernetes
• Python experience is nice to have
• BSc or MSc in Computer Science, Engineering or relevant field

Overview:
We are looking for a Senior Backend Engineer to lead the development of core backend services within a modern microservice infrastructure that powers mobile and embedded clients. This is a senior, hands-on role with architectural ownership, ideal for an engineer who enjoys building scalable distributed systems, designing secure and reliable APIs, and mentoring other developers. You will drive technical decisions and collaborate closely with architects, frontend engineers, and product teams to deliver future-proof backend solutions.

Responsibilities:

• Lead the design and development of backend services using Java in a Docker/Kubernetes-based environment;
• Drive architectural improvements and establish backend best practices across the platform;
• Design, implement, and optimize event-driven systems based on Kafka;
• Build secure, scalable RESTful APIs for internal and external consumers;
• Design and query complex data models using PostgreSQL, with strong focus on performance and reliability;
• Collaborate closely with frontend and product teams to deliver features end-to-end, from concept to production;
• Ensure system reliability and observability through logging, tracing, and monitoring;
• Enable integrations with data pipelines and ML-powered services as part of data-driven and AI initiatives;
• Mentor junior engineers, conduct code reviews, and support team-wide technical growth.

Requirements:

• 5+ years of professional experience in backend development within microservice and cloud-native environments;
• Strong production experience with Java (e.g., Spring Boot or similar frameworks);
• Python experience is a plus, especially for data pipelines, ML integration, or scripting tasks;
• Deep understanding of:
  • Kafka and event-driven architectures;
  • PostgreSQL, including advanced schema design and query optimization;
  • Secure API design and implementation (OAuth2, HTTPS, mTLS).
• Hands-on experience with Docker, Kubernetes, and CI/CD pipelines in production;
• Proven ability to lead cross-functional technical initiatives and make architectural decisions;
• Demonstrated experience mentoring or guiding less experienced engineers;
• Exposure to video streaming backends or media platforms is a plus;
• Strong interest or background in ML- or data-driven applications;
• Bonus: Experience with observability stacks (e.g., Prometheus, Grafana) or real-time analytics systems.

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

• Project Description:

  The role is based in Krakow, where you will join an established team already working there, collaborating with colleagues across the globe.

• Responsibilities:

  As a Java Developer at UBS, you will play a key role in designing, developing, and maintaining high-quality software applications. You will collaborate closely with cross-functional teams to understand project requirements, implement solutions, and ensure the successful delivery of projects.
  
  We are looking for someone who can:
  
  • be a good team member who can deliver business value through software
  • enthusiastic about programming, willing to strive for the best, and have a good sense of clean code
  • pick up new knowledge and new technologies, and be able to work independently
  • implement and deliver high-quality software solutions
  • work in an Agile/Scrum development process environment and practice test-driven development (TDD)

• Mandatory Skills Description:

  • A degree in Computer Science, Engineering, or related field.
  • Proven experience as a Java Developer with proficiency in Java programming language, Spring framework and Hibernate.
  • Exposure to cloud technologies, preferably Microsoft Azure, and willingness to gain experience in cloud-based solutions.
  • Experience with messaging systems such as EMS and Kafka for distributed communication and event-driven architectures.
  • Strong understanding of software development principles, design patterns, and best practices.
  • Basic knowledge of Unix systems for troubleshooting and maintenance tasks.
  • Experience writing automated tests using JUnit for functional and integration testing.
  • Proficiency in Git version control system. Good knowledge of git plugins for IDEs, preferably IntelliJ IDEA
  • Excellent communication and collaboration skills.
  • Ability to work effectively in a team environment and independently when required.

• Nice-to-Have Skills Description:

  • Previous work in the financial services or banking industry is considered an asset.

• Languages:
  • English: C1 Advanced

About the role
We are looking for a Middle Java Backend Engineer to join our team and work on developing and supporting backend services.

You will be involved in building REST APIs, working with databases, and integrating with external systems.

Responsibilities

• Develop and maintain backend services using Java and Spring Boot
• Build and support REST APIs
• Work with PostgreSQL (schema design, query optimization, transactions)
• Integrate with external services via HTTP APIs
• Implement authentication and authorization (JWT, role-based access)
• Work with file storage (S3 / MinIO)
• Write tests and support existing functionality

Requirements

• Experience in backend development with Java and Spring Boot
• Experience building and supporting REST APIs
• Good knowledge of Spring Web, Spring Data JPA, Hibernate, Spring Validation
• Practical experience with Spring Security, OAuth2 Resource Server, JWT, role-based access
• Solid experience with PostgreSQL (schema design, query optimization, transactions)
• Experience managing database migrations with Flyway
• Experience integrating external services via HTTP APIs
• Experience working with S3 / MinIO or similar storage
• Experience with testing: JUnit 5, Spring Boot Test, integration tests
• Experience with Gradle, Docker, Git

Nice to have

• Experience with Testcontainers
• Experience with Keycloak or similar IAM / SSO solutions

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.
• 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

Senior Java Engineer (high-load product) 

Are you a Java Developer looking for new challenges? 
What about working with a high-profile client with millions of QPS? 
If you have experience developing high-performance distributed systems, this is the perfect opportunity to work on a new digital marketing management platform with a world-renowned client.
 
Project tech stack: 
Concurrency -  a high-load, low-latency system.
Cache: Aerospike, Memcached
Cloud: AWS, GCP
DB: PostgreSQL, Superset
Streams: Kafka, Kinesis
Data formats: Avro, Protobuf
Languages: Java, Scala, Python
 
About the project:
Our client is a leading streaming service based in the United States. With millions of users worldwide, its devices provide easy access to free TV, live news, sports, movies, etc. The client has an advertising business and also licenses its hardware and software to other companies.
 
Location:
Ukraine remote
 
Skills & Experience:
- 4 - 8 years of experience building large-scale and low-latency distributed systems
- B.S. or M.S. degree in Computer Science, Engineering, or equivalent 
- Command of Java or C++
- Solid understanding of algorithms, data structures, performance optimization techniques, object-oriented programming, multi-threading, and real-time programming 
-Self-motivated individual with a high level of accountability and ownership
- Critical thinking and practical decision making
- Can do, results-oriented mindset
 
Will be a plus: 
- Experience with distributed caching, SQL/NoSQL, and other databases is a plus 
- Experience with Big Data and cloud services such as AWS/GCP is a plus
Experience in the advertising domain is a big plus 

 Responsibilities
- Work alongside a highly skilled engineering team to design, develop, and maintain large-scale, highly performing, real-time applications
- Own building features, driving directly with product and other engineering teams 
- Demonstrate excellent communication skills in working with technical and non-technical audiences 
- Be an evangelist for best practices across all functions – developers, QA, and infrastructure/ops 
- Be an evangelist for platform innovation and reuse 
- Deliver top-quality software in a timely fashion