Jobs at Djinni

We are looking for a Senior Java Engineer to join the Segmentation & Audience Platform project full-time. We are building a real-time Audience Segmentation & Engagement Platform that powers communications, personalization, automation, reporting, and customer engagement across the entire ecosystem.

Your responsibilities will include:

• Design and implement core components of the audience segmentation platform
• Design and evolve a flexible segment definition language supporting complex rules and targeting scenarios
• Build a scalable segment evaluation engine for processing large-scale entity and relationship data
• Support complex nested logical expressions, filtering criteria, and rule evaluation workflows
• Implement relationship-based audience resolution across multiple entity types and organizational hierarchies
• Design and optimize incremental segment recomputation to efficiently process continuous data changes
• Build event-driven audience update and hydration pipelines for near real-time segment accuracy
• Implement segment versioning, governance, auditability, and full lifecycle traceability
• Design low-latency audience resolution services operating at high scale
• Develop materialization and caching strategies for dynamic segments and audience snapshots
• Optimize query execution, system performance, scalability, and operational efficiency
• Design and evolve APIs for audience creation, management, and retrieval
• Collaborate with product and engineering teams to define platform capabilities and architecture
• Ensure reliability, observability, maintainability, and operational excellence of the platform
• Contribute to architectural decisions and provide technical leadership within the team

• At least 5 years of backend engineering experience
• Strong Java development expertise
• Experience building distributed systems
• Experience designing query engines, search platforms, rules engines, segmentation platforms, or analytics systems
• Strong understanding of data modeling and domain-driven design principles
• Experience with event-driven architectures
• Experience designing scalable APIs and backend services
• Strong problem-solving and performance optimization skills
• Experience working with cloud-native architectures
• Ability to drive technical decisions and contribute to system architecture
• Upper-Intermediate+ English level

• Experience with recommendation engines
• Experience with Quarkus
• Experience building Customer Data Platforms (CDP)
• Experience with marketing automation systems
• Experience with audience segmentation or personalization platforms
• Experience with graph-based data models and relationship traversal
• Experience with search technologies such as Elasticsearch or OpenSearch
• Experience with stream processing technologies
• Experience with Google Cloud Platform
• Experience with large-scale analytics systems

• Work at a Top-employer company (according to DOU 2025)
• A strong culture built on empathy, trust, openness, and real care for employees
• Competitive compensation with regular reviews
• Medical insurance
• Personal learning budget and access to top HR tools, platforms, and practices
• Team events and regular team-building activities
• Flexible hybrid work model with an office in central Kyiv

About this role At Coreblocks, we create tools that support independent creators, entrepreneurs, and freelancers. In this position, you will drive the technical development of our native Android application, creating fast, seamless, and intuitive mobile features that simplify how users manage fiat, digital assets, and investment portfolios. We grant you complete engineering autonomy, valuing high craftsmanship and zero micromanagement, allowing you to design, build, and deploy secure, beautifully styled mobile experiences end-to-end.

You'll take ownership of:

• Native Application Development: Design, implement, and maintain responsive Android features (including transaction history, account overviews, payment processing, and multi-asset dashboards) maintaining full parity with our web platform.
• Secure API Communication: Work closely with backend teams to consume and protect real-time financial streams over RESTful services.
• Client-Side Security: Build and enforce high-standard security patterns, incorporating biometric logins, secure token storage using Android Keystore, certificate pinning, and smooth multi-factor authentication (MFA) flows.
• Design System & UI Execution: Convert Figma designs into pixel-perfect Material Design layouts using Jetpack Compose, delivering simple user journeys for complex financial operations.
• Code Reliability & App Performance: Write solid unit and integration test suites (JUnit, MockK), conduct thorough code reviews, monitor application memory/resource consumption across various Android devices, and fix production issues rapidly.
• Agile Collaboration & Delivery: Contribute actively to sprint planning, offer reliable technical estimates, and align software roadmaps with Product Leadership by understanding the business drivers behind every task.
• AI-Native Engineering: Leverage modern AI assistants (Cursor, Claude, or GitHub Copilot) in your everyday workflow to speed up UI prototyping, code writing, and unit test coverage.

About you:

• Commercial Android Experience: 3+ years of professional experience developing native Android applications, with high proficiency in Kotlin and hands-on familiarity with Kotlin Multiplatform (KMP).
• Modern Android Stack: Thorough understanding of modern architectural patterns (MVVM/MVI, Clean Architecture) and Jetpack components (ViewModel, Coroutines Flow, Navigation).
• Declarative UI & Concurrency: Strong hands-on experience using Jetpack Compose (or extensive background with traditional XML Layouts) alongside Kotlin Coroutines and Flow for managing reactive data streams.
• Mobile Security Practice: Practical knowledge of securing sensitive data in mobile apps, including Keystore integration, code obfuscation (ProGuard/R8), and encrypted local storage.
• Testing & Quality Assurance: Proven track record of writing unit tests (JUnit, Mockito/MockK), exceptional debugging skills, and a strong focus on mobile app performance and crash-free rates.
• Self-Driven Accountability: Ability to manage your own tasks independently, taking full responsibility for features from initial setup to Google Play release without needing constant oversight.
• Open Communication: Professional English skills (spoken and written), strong team spirit, willingness to share knowledge across engineering teams, and a commitment to a respectful working culture.

We are looking for an experienced Senior Full Stack Engineer with Java, Python and React experience to join our development team and contribute to the development of a customized AI-driven platform.

Our customer – integrated Shipping Services has set itself apart as an independent carrier with a fresh, unique approach. His strategy as a global niche carrier offers distinctive advantages to customers worldwide. We have created a smart, efficient network that ensures stable, reliable services; and we have made it our mission to focus on the needs of our customers, which stand at the heart of all our decisions. The main idea of our product operates in select trades, where it has a competitive advantage and where it can provide superior service. We maintain a flexible partnership approach with other major carriers, and our new line structure is a much-needed alternative to customers concerned about the current alliance-dominated market.

Responsibilities:

• Hand-On full stack development of innovative applications.
• Owning the entire development cycle, including design, architecture, development, and DevOps.
• Working in Extreme Programming methodology with remote pairing.

Requirements:

• BSc in Software Engineering or BS degree in Computer Science.
• 6+ years of experience in the following technologies: Java (must have), Spring.
• 2+ years of experience with Python (must have).
• 2+ years of experience in FE, mainly React (must have), and other modern JavaScript Framework/libraries.
• Experience with LLMs/AI/Prompt Engineering/MCP.
• Experience with Claude.code
• Experience with Data Analytics – big advantage.
• Experience in development in Kotlin – big advantage.
• Experience with Functional Programming and Java Streams.
• Experience with developing a reactive UI (Reactive JS).
• 2+ years of experience in TDD/BDD development in the following frameworks: Junit, Jasmin, Mockito, Protractor/Selenium
• 3+ years of experience in micro-services-based architecture and tools (Spring Boot/Cloud)
• Experience in DevOps development and Jenkins.
• Experience in designing, developing, and deploying cloud/hybrid-based solutions.
• Experience in developing and deploying in Container based environments (Kubernetes, Cloud foundry).
• Familiarity with the following design concepts: micro-services, service discovery, circuit breaker.
• Self-starter with the ability to appropriately priorities and plan complex work in a rapidly changing environment.
• Versatility and capability to switch easily between different tasks and technologies.
• Experience in assessing a broad range of information solutions and products.
• Strong critical thinker with problem solving aptitude.
• Good English - verbal and written.

Hi there! We’re excited to introduce you to Softsich — a young, ambitious, and fast-growing company that creates innovative digital products and confidently expands its presence in global markets.We are looking for a Help Desk Specialist in Warsaw office.

Responsibilities:

• Providing technical support to users via Help Desk (1st and 2nd line): handling incidents and service requests
• Supporting and configuring workstations on Windows/macOS/Linux
• Preparation, configuration, and formatting of new devices (laptops, PCs, peripherals)
• Equipment accounting: issuance, receipt, preparation for reuse
• Support for users in solving basic and intermediate IT problems (hardware/software)
• Consulting on software use and configuration
• Employee onboarding/offboarding (configuring access, equipment, work environment)
• Registering and configuring devices in MDM (enrollment, compliance check)
• Checking devices for basic vulnerabilities and compliance with security policies
• Proficiency in Ukrainian at the B2 level.

Skills & Qualifications:

• Solid knowledge of Windows, macOS, and Linux operating systems
• Experience with Google Workspace
• Understanding of software installation, configuration, and optimization principles
• Practical experience in formatting and preparing equipment for use
• Understanding of IT support processes and working with users
• Experience with MDM/endpoint management is a plus
• Ability to work with ticket systems (Jira, Service Desk, similar)
• Understanding of ITSM processes (Incident, Request, Change — at a practical level)
• Skills in working with scripts/automation (PowerShell/Bash — a plus)
• Knowledge of networks: TCP/IP, DNS, DHCP, VPN (user-level troubleshooting)
• Ability to maintain technical documentation and user instructions
• Understanding of SSO/MFA/Conditional Access principles (at the level of use and basic settings)
• Experience with corporate SaaS services (password managers, collaboration tools)

What We Offer:

• Flexible schedule and freedom to choose: work from our office in Warsaw.
• 24 paid vacation days, sick leave, and medical insurance (currently in Ukraine, other countries — in progress).
• A friendly, open-minded team where it’s easy to ask questions, learn, and be yourself.
• Coverage for professional events and training.
• Birthday gifts, team buildings, and genuine team connection.
• Zero energy or business ties with the aggressor country — and we’re proud of that.

🚀 Ready to join a team?Then welcome on board — let’s grow smarter together!

Creatio is an AI CRM and workflow platform where people and AI agents work together — with no limits on users,  agents, or scale. We help midsize and large organizations run customer workflows in the AI era. Headquartered in  Boston, MA, with a global team and a large ecosystem of partners, Creatio serves thousands of customers in over 100  countries and automates tens of millions of workflows daily. Genuine care for our clients and partners is at the heart of our DNA. 

We’re proud to be recognized by top industry analysts as a Leader and Strong Performer in multiple Gartner and Forrester reports. 

In 2025, Creatio was named to Inc.’s Best Workplaces list, recognizing our commitment to employee wellbeing and a strong workplace culture.

Who We’re Looking For:

We are looking for a proactive and technically curious DevOps Engineer who is passionate about building reliable internal infrastructure and improving engineering workflows through automation. In this role, you will contribute to the development and maintenance of CI/CD pipelines, enhance internal tools, and help ensure stable and efficient services for engineering, security, and other internal teams. 

We value people who enjoy solving complex technical challenges, continuously improving processes, and collaborating across teams to deliver impactful solutions.

The role is based in Ukraine.

Team composition:

1 Product owner, 1 Technical Lead, 4 DevOps Engineers.

Tech Stack:

• Monitoring: Zabbix, Grafana, Graylog
• Operating Systems: Unix-like (CentOS/Debian/Ubuntu), Windows Server
• Languages: Ready to work with Python, SQL, optional: Groovy, PowerShell
• Containers: Docker (and similar container runtimes)
• Orchestration & Service Mesh: Kubernetes, Istio
• CI/CD Systems: Jenkins, TeamCity
• Cloud services: Azure/AWS (optional)

• Others: Git, Terraform, Ansible, IIS, SVN

   

Responsibilities:

• Design, develop, and optimize automation for CI/CD pipelines (builds, quality checks, deployments, e2e testing, performance testing, etc), enabling faster and safer releases for R&D teams.
• Develop and maintain tools and services for development teams, security teams, and other stakeholders.
• Build and maintain advanced monitoring, alerting, and fault-tolerance systems, ensuring proactive detection and resolution of issues.

• Partner with developers, QA engineers, and architects to implement best practices in DevOps and automation.

   

What you should expect from us:

• Growth & Development: Clear career paths, mentorship opportunities, and access to continuous learning to help you reach your full potential.
• Flexibility & Well-Being: We provide flexible work arrangements and initiatives that empower you to manage your schedule effectively, stay productive, and thrive both personally and professionally.
• Recognition & Impact: A culture that celebrates achievements, values your ideas, and empowers you to make real contributions from day one.
• Innovative Culture: Be part of a company that embraces new ideas, modern technologies, and bold thinking to stay ahead of the curve.
• Benefits & Rewards Package: We provide competitive compensation and benefits designed to support you and your family. Our rewards approach goes beyond salary, recognizing your contributions and commitment. The exact package may vary depending on your country of residence and employment type