Jobs Java

We at Sigma Software are looking for a Senior Java Engineer to join an exciting project in the domain of audience segmentation and engagement. This is a remote role open to candidates from Ukraine and Europe, offering the opportunity to work with cutting-edge technologies and high-scale systems.

You will be part of a team building a real-time platform that powers communications, personalization, automation, and customer engagement across diverse ecosystems. At Sigma Software, we value innovation, collaboration, and technical excellence.

Why join us? You’ll work on challenging tasks, contribute to architectural decisions, and have the freedom to experiment with new technologies while improving data systems at scale.

Customer

Our customer is a leading EdTech company that uses AI and data-driven technologies to personalize learning experiences, optimize user engagement, and improve marketing effectiveness through advanced audience targeting and analytics.

Project

The project is a real-time platform that enables product teams and business stakeholders to define and manage dynamic user groups based on user attributes, relationships, behavioral events, and historical activity.

Requirements

• At least 5 years of commercial software engineering experience
• Strong Java expertise
• Solid understanding of streaming architectures and stateful stream processing using technologies such as Apache Beam, Apache Flink, Kafka Streams, or Spark Structured Streaming
• Strong experience designing and building rule engines, expression evaluators, query engines, or policy/targeting systems
• Hands-on experience with incremental computation and materialized view maintenance
• Experience designing event-driven distributed systems with a strong focus on scalability and reliability
• Strong knowledge of data consistency concepts, including point-in-time snapshots, exactly-once processing, idempotency, bounded staleness, and eventual consistency
• Experience building dependency graphs, composition engines, or DAG-based processing pipelines
• Practical experience with distributed data stores and low-latency data modeling
• Strong knowledge of Java and Google Cloud Platform, including Pub/Sub and Apache Beam
• Experience building correctness-critical systems with a strong focus on testing, validation, and fault tolerance
• Solid understanding of versioning, rollback strategies, anomaly detection, and production safety practices

• Upper-Intermediate English level

   

Will be a plus 

• Experience with AdTech, MarTech, CRM segmentation, audience-building, or campaign targeting platforms
• Experience with query optimization, indexing strategies, and database internals
• Knowledge of graph processing, relationship traversal, or projection-based systems
• Experience with multi-tenant architectures, workload isolation, and cost optimization
• Understanding of GDPR-compliant data deletion and privacy propagation
• Experience working in regulated domains such as Education (K-12), Healthcare, or FinTech
• Experience with Google Cloud Spanner or similar globally distributed databases
• Familiarity with geospatial indexing and location-based querying

Personal Profile

• Proactive and detail-oriented
• Thrives in collaborative environments
• Enjoys solving complex integration challenges
• Comfortable experimenting with new technologies
• Committed to improving data systems

Responsibilities

• Design and implement core components of the audience segmentation platform
• Develop and evolve a flexible segment definition language supporting complex targeting scenarios
• Build scalable evaluation engines for processing large-scale entity and relationship data
• Implement relationship-based audience resolution across multiple entity types
• Optimize incremental recomputation for continuous data changes
• Create event-driven pipelines for real-time segment accuracy
• Ensure governance, auditability, and lifecycle traceability of segments
• Design low-latency resolution services for high-scale operations
• Develop caching strategies for dynamic segments and snapshots
• Optimize system performance, scalability, and operational efficiency
• Collaborate with product and engineering teams to define platform capabilities and architecture
• Provide technical leadership and contribute to architectural decisions

Stellar Logic is a fast-growing team specializing in custom enterprise solutions. We don’t just write code; we build the digital backbone for our clients. We’re looking for a Full-stack Developer (60% Java / 40% React) to join our team and help us build and scale distributed platforms.

If you enjoy working on both sides of the stack, like to understand how things work under the hood, and want to see your code solve real business problems, we’d love to chat!

Responsibilities

• Feature Delivery: Develop new features for microservice-based applications using Java and Spring Boot.
• Frontend Development: Build and improve user interfaces using React, ensuring they are fast and easy to use.
• Database Management: Work with PostgreSQL and MongoDB to store and manage data efficiently.
• Cloud & Deployment: Run and monitor your services in Azure Cloud (using Kubernetes/AKS). We won’t make you a full-time DevOps, but you should know your way around the cloud environment.
• Code Quality: Write clean, testable code and participate in code reviews to keep our codebase healthy.
• Problem Solving: Collaborate with the team to figure out the best way to implement complex requirements.
• Optimization: Help us make the system faster and more reliable as the user base grows.

Requirements

• Experience: 5+ years of professional experience in software development.
• Java Stack: Solid knowledge of Java & Spring Boot (Data, Security). Experience with Hibernate is a must.
• Frontend Stack: Good practical experience with React (Hooks, State Management).
• Databases: Experience with both relational (PostgreSQL) and NoSQL (MongoDB) databases.
• Infrastructure: Proven experience with Azure Cloud, Docker, and how applications run in Kubernetes.
• Ownership: You take responsibility for your tasks from start to finish and care about the result.
• Communication: Strong English skills B2 or higher (we work with international projects, so you’ll need it).

Why Work with Us?

🚀 Tailored Solutions: At Stellar Logic, every project is a fresh challenge. We build custom software from scratch — no templates, just pure logic and innovation.

👨‍💻 Talent with Purpose: Our team of dedicated experts combines skill and creativity, working together to push boundaries and deliver excellence.

⭐️ Commitment to Quality: We care about the “why” behind the code. Every project reflects our dedication to building reliable, innovative systems.

💫 Empowered Teamwork: We value every contribution and prioritize collaboration, creating a culture where great ideas thrive and projects succeed as a team effort.

What We Offer:

• Remote Work: Work from anywhere while contributing to impactful IT projects.
• Growth Opportunities: Be part of a dynamic, expanding team with opportunities for advancement.
• Flexible Hours & Paid Vacation: Manage your own time for a healthy work-life balance.
• Tax & Accounting Support: We handle the paperwork so you can focus on the logic.

Not Meeting Every Skill? If you’re a strong Java dev who’s just starting to get serious with React, or vice-versa, but you’re a quick learner and a solid engineer — apply anyway! We value the right mindset and the ability to get things done.

Join our team and let’s build something great together!

Project Description:

Join our Development Center in Bucharest, and become a member of our open-minded, progressive and professional team. In this role you will be working on projects for one our world famous clients.
You will have a chance to grow your technical and soft skills, and build a thorough expertise of the industry of our client.
On top of attractive salary and benefits package, Luxoft will invest into your professional training, and allow you to grow your professional career.

Responsibilities:

We are seeking a Senior Java Developer responsible for designing, building, and optimizing high-performance, scalable backend systems using modern Java frameworks and established engineering best practices. The role involves contributing to the development of secure, reliable, and cloud-ready enterprise applications, enhancing system architecture, producing clean and testable code, and ensuring efficient integration with APIs, databases, and distributed services that enable critical reporting and analytics across the organization.

Key Responsibilities:

• Design, develop, and maintain backend Java/Spring Boot microservices and full‑stack applications using ReactJS or Angular.
• Produce clean, secure, and efficient code aligned with engineering standards.
• Contribute across all stages of the product lifecycle in close collaboration with cross‑functional engineering teams.
• Work within an Agile, CI/CD‑driven environment and contribute to improving development workflows.
• Apply architectural concepts to ensure secure, scalable, and highly available solutions.
• Write unit, integration, and automated tests and integrate them into the CI/CD pipeline.
• Participate in design discussions, code reviews, and technical decision‑making.
• Mentor junior developers, promote best practices, and support collaborative team culture.
• Work with business analysts, users, and UI/UX designers to build effective and intuitive solutions.

Mandatory Skills Description:

• 5+ years of development experience in a senior engineering role.
• Backend: strong proficiency in Java, Spring Boot, Spring MVC, Spring Data, and common design patterns.
• Frontend: practical experience with React or Angular (component architecture, state management, forms).
• Microservices: hands‑on experience designing and implementing microservice-based architectures.
• Cloud: familiarity with cloud platforms (preferably GCP) and deploying/managing cloud‑native applications.
• Databases: solid understanding of SQL and relational databases (PostgreSQL, Oracle, BigQuery).
• CI/CD: experience with GitHub Actions, Jenkins, and automated build/deploy pipelines.
• Containers: experience with Docker, Kubernetes, Helm charts.
• Strong analytical and communication skills, initiative, autonomy, and a continuous learning mindset.
• Ability to share knowledge, coach others, and contribute to a positive engineering culture.
• Comfortable working in an Agile environment with evolving requirements.
• Proficiency in spoken and written English.

Nice-to-Have Skills Description:

• Kafka, Pub/Sub, or event-driven design
• Terraform, CI/CD as code
• Performance tuning and distributed tracing (Grafana, OpenTelemetry)
• Security best practices (OAuth2, JWT, IAM, etc.)

Languages:

English: B2 Upper Intermediate

Are you passionate about building secure, high-performance platforms? We are looking for a Senior Java Developer to join our team and work on a cutting-edge security platform. This is a remote role open to candidates across Europe and Ukraine.
At Sigma Software, we create innovative solutions for complex ecosystems, ensuring security, scalability, and compliance at every step. You will be part of a talented engineering group designing the unified access layer for distributed services.
Why join us? You will work on a mission-critical project with advanced security architecture, collaborate with skilled professionals, and contribute to a platform that supports global-scale operations.

CUSTOMER

Our customer is a leading EdTech company that uses AI and data-driven technologies to personalize learning experiences, optimize user engagement, and improve marketing effectiveness through advanced audience targeting and analytics.

PROJECT

The project focuses on developing a centralized platform access layer that combines API gateway capabilities, service orchestration, data composition, and fine-grained authorization mechanisms. The platform provides a secure foundation for governance across the ecosystem, supporting complex organizational hierarchies, regional compliance requirements, and consistent policy enforcement.

JOB DESCRIPTION 

• Design and evolve the platform access architecture for a large-scale distributed ecosystem
• Build and maintain a unified API layer over multiple distributed services
• Implement fine-grained ABAC authorization at scale, supporting complex hierarchies and relationships
• Develop fail-closed security architectures with strict enforcement guarantees
• Manage regional compliance, data residency, and routing requirements
• Ensure consistent data visibility rules across all products and services
• Design high-performance authorization evaluation systems and policy engines
• Maintain auditability, traceability, and security transparency mechanisms
• Collaborate with platform and product teams on API and access design
• Contribute to architectural decisions and security standards

QUALIFICATION

• At least 5 years of commercial software engineering experience
• Strong expertise in Java development
• Strong proficiency in Java 21+ and modern Java features, including virtual threads, NIO, and concurrent programming
• Hands-on experience building high-performance backend systems with a strong focus on scalability and low latency
• Experience working with GraalVM Native Image and optimizing Java applications for native execution
• Solid understanding of HTTP protocol internals, connection management, streaming, and API performance optimization
• Experience processing large volumes of JSON using streaming APIs and memory-efficient techniques
• Strong knowledge of performance tuning, profiling, benchmarking, and JVM optimization
• Experience designing and implementing caching strategies and cache invalidation mechanisms
• Solid understanding of authentication, authorization, and security best practices in distributed systems
• Experience building or maintaining API gateways, proxies, load balancers, service mesh components, or other infrastructure-level services
• Strong understanding of event-driven architectures and distributed systems design
• Experience writing comprehensive automated tests for performance-critical and protocol-level components
• Upper-Intermediate or higher English proficiency

WILL BE A PLUS

• Experience with Netty and high-performance networking applications
• Experience with service mesh technologies such as Istio, Envoy, or Dapr
• Hands-on experience with authorization frameworks such as OPA, Cedar, Zanzibar, or Oso
• Experience with Google Cloud Platform, including Pub/Sub, BigQuery, Memorystore, or Redis
• Experience deploying and operating applications on Kubernetes
• Familiarity with gRPC, Protocol Buffers, and HTTP/2
• Experience working in regulated domains such as Healthcare, Education, or FinTech
• Knowledge of jlink, AppCDS, CRaC, or other JVM optimization technologies

PERSONAL PROFILE

• Proactive and detail-oriented
• Thrives in collaborative environments
• Enjoys solving complex integration challenges
• Comfortable experimenting with new technologies
• Committed to improving data systems

• A next-generation cross-asset data management platform to provide globally consistent data and innovative tools to support business strategy for trade/sales clients, which is built on big data architecture, highly scalable, and cloud-ready. The platform enables industry-leading analytics, client reporting, regulatory compliance, surveillance, supervisory reporting, and data science solutions (data flame). The project tech stack: Java, Scala, Spring, SQL, Kafka, Hadoop.
  
  We are looking for a strong Senior BigData Java Developer capable of being able to work within the team, being a mentor for team members, communicating with stakeholders, and being accountable for the outcomes of activities that are assigned.
  
  The role of the involves working with strong development teams (2 Senior Java Developers), the opportunity to work with big data, improving knowledge in this domain, and utilizing the resources of an international bank.
•  

• Responsibilities:

  • Design and build frameworks for ingesting/modeling the complex Risk data
  • Develop Low latency caching to service Front office risk systems
  • Setup monitoring and management for services
  • Provide SME support for development of automated QA scripts

   

• Mandatory Skills Description:

  • Strong knowledge of Big Data technologies: Hadoop Ecosystem (HDFS, Impala, HIVE, HBASE, etc.) and Apache Spark.
  • At least 5 years of experience in software development, including professional backend software development experience;
  • Strong Knowledge of Java programming languages
  • Should be familiar with algorithms and design patterns
  • Familiarity with Linux environment, including scripting skills
  • Designing and building APIs (Java);
  • Java Server-side or Back-end development;
  • Core Java;
  • Java collections and multithreading;
  • Java Memory Management;
  • Database and SQL (writing stored procedures, designing table schemas).
  • Understanding of distributed systems.
  • Understanding of CI/CD workflow.
  
  • Ability to multi-task and work under pressure.
  • Ability to pick up new concepts and apply the knowledge.
  • Demonstrated problem-solving skills.
  • Enthusiastic and proactive approach with a willingness to learn.
  • The candidate is expected to be dynamic and flexible with a high energy level as this is a demanding and rapidly changing environment

   

• Nice-to-Have Skills Description:

  • Experience In-memory databases and caching
  • Job Orchestration tools like Autosys or Airflow
  • Apache Spark
  • Financial background (where possible)

   

• Languages:
  • English: C1 Advanced

About Us

Smart Capital Center is an end-to-end, AI-powered platform for Commercial Real Estate (CRE) investment and financial management. We power real-time underwriting, asset management, and portfolio analytics through a combination of live data, workflow automation, and AI-driven insights.

Operating at the intersection of Generative AI, finance, and real estate, we are building systems that digitize and simplify complex financial workflows.

Our clients include leading institutions such as JLL, Pacific Life Insurance Company, and KeyBank. We are a lean, high-performance team building category-defining technology in a $17 trillion industry.

To learn more about our platform and vision, please visit our website.

The Role

We are looking for a Backend Software Engineer with strong experience in building scalable systems and a deep interest in AI-powered applications.

This is a high-impact, hands-on role where you will design and build backend services, integrate AI capabilities, and develop intelligent, agent-driven workflows used in real-world production environments.

You will work closely with product, AI, and engineering teams to deliver reliable, high-performance systems and automation features.

What You Will Do

Backend Development

• Design, build, and maintain backend services using Java (Spring Boot) and Python
• Develop scalable APIs and microservices for data-intensive applications
• Optimize system performance, reliability, and scalability
• Design efficient data models and handle complex integrations

AI & Intelligent Systems

• Implement and integrate AI-powered features into core products
• Design and build agent-based workflows for automation and decision-making
• Apply prompt engineering techniques to improve LLM outputs and behavior
• Work with modern AI frameworks to productionize intelligent systems

Cloud & Infrastructure

• Develop and deploy backend systems on AWS (EC2, S3, RDS, Lambda, etc.)
• Build resilient, scalable cloud-native services
• Contribute to system monitoring, logging, and reliability

System Design & Engineering Excellence

• Contribute to architecture, service boundaries, and system design decisions
• Write clean, maintainable, and well-documented code
• Ensure security, performance, and operational stability
• Continuously improve engineering quality and development practices

Collaboration

• Work closely with frontend, product, and AI teams
• Contribute to end-to-end feature delivery
• Participate in Agile development processes

Requirements

• 5+ years of backend software development experience
• Strong experience building and scaling backend systems in production

Core Technical Skills

• Strong experience with Java and Spring Boot
• Solid experience with Python
• Strong knowledge of SQL and database design (PostgreSQL preferred)
• Experience building REST APIs, microservices, and distributed systems
• Hands-on experience with AWS (EC2, S3, RDS, Lambda, etc.)
• Proficiency with Git and modern development workflows

AI & Modern Development Experience

• Experience with prompt engineering for LLM-based systems
• Practical experience building AI agent workflows in production
• Familiarity with frameworks/tools such as:
  • LangGraph
  • LangChain
  • LangSmith
  • or similar ecosystems
• Experience using AI-assisted development tools, such as:
  • Claude Code
  • Codex
  • OpenCode
  • or similar

Nice to Have

• Experience with vector databases or semantic search (e.g., Milvus)
• Knowledge of RAG (Retrieval-Augmented Generation) architectures
• Experience with CI/CD pipelines and DevOps practices
• Familiarity with event-driven architecture

• Experience with data processing pipelines or document AI systems

   

Why Join Us

• Work on cutting-edge AI-powered systems in a $17T industry
• Build real-world applications using LLMs, agents, and automation
• High ownership and autonomy with meaningful technical impact
• Opportunity to influence system design and engineering direction
• Fast-moving, execution-focused team with minimal bureaucracy
• Competitive compensation and flexible work environment

PLEASE NOTE that we are searching for candidates who are located in Lviv and are able to visit office in Lviv.

About us:

EveryMatrix is a leading B2B SaaS provider delivering iGaming software, content and services. We provide casino, sports betting, platform and payments, and affiliate management to 200 customers worldwide.

But that's not all! We're not just about numbers, we're about people. With a team of over 1000 passionate individuals spread across twelve countries in Europe, Asia, and the US, we're all united by our love for innovation and teamwork.

EveryMatrix is a member of the World Lottery Association (WLA) and European Lotteries Association. In September 2023 it became the first iGaming supplier to receive WLA Safer Gambling Certification. EveryMatrix is proud of its commitment to safer gambling and player protection whilst producing market leading gaming solutions.

Join us on this exciting journey as we continue to redefine the iGaming landscape, one groundbreaking solution at a time.

We are looking for a passionate and dedicated Strong Junior Java Developer to join our team in Lviv!

About the job:
It is a part of EveryMatrix platform that is responsible for collecting, storing, processing and utilizing hundreds of millions of transactions from the whole platform every single day. We develop Business Intelligent solutions, reports, 3rd party integrations, data streaming and other products for both external and internal use. The team consists of 35 people and is located in Lviv. We are looking for motivated, proactive developers willing to learn modern technologies, working in a challenging and fast-paced environment. You will be working in small cross-functional Agile teams responsible for the end-to-end development and component support using the You Build It, You Run It principle.

What You'll get to do:

• Extend and optimize the Rules Engine.
• Collaborate with cross-functional teams to deliver innovative solutions.
• Participate in code reviews and contribute to team knowledge sharing.
• Troubleshoot, debug, and resolve software defects and issues.
• Assist in designing and implementing new features.
• Develop unit and integration tests to ensure software quality.
• Document code, processes, and technical specifications.
• Stay up-to-date with Java best practices and emerging technologies.
• Support deployment and maintenance of applications in development and production environments.
• Participate in Agile ceremonies and contribute to sprint planning and retrospectives.

What You need to know:

• Java Core: Deep understanding of collections, performance tuning, type systems, garbage collection, and exception handling.
• Multithreading & Concurrency: Expertise in managing asynchronous computations and ensuring thread safety.
• HTTP & RESTful Services: Strong experience in developing and consuming RESTful services.
• RDBMS & SQL: Proficiency in writing complex SQL queries and a solid understanding of RDBMS theory.
• Spring Boot: Practical experience with the Spring ecosystem, including a strong theoretical foundation.
• Apache Kafka: Proven experience with Kafka, including both practical application and theoretical knowledge.
• Unit/Integration Testing: Demonstrated ability to write testable code with adequate coverage.

Nice to Have:

• Experience with Docker & Kubernetes.
• Experience with the Google Cloud platform.
• Knowledge of Online Casino/Sports Systems.

Here's what we offer:

• Start with 22 days of annual leave, with 2 additional days added each year, up to 32 days by your fifth year with us.
• 3 sick leave days per year, no doctor's note required; 30 medical leave days with medical allowance
• Hybrid work schedule is available after the first three months of employment with 80/20 office/home format until the end of 2026. Starting from 2027, the policy will transition to primarily office-based work, with up to 10 work-from-home days per year with manager approval.
• Benefit from two Free Fridays each year, limited to one per quarter.
• Daily catered lunch or monthly lunch allowance. 
• Private Medical Subscription. 
• Access online learning platforms like Udemy for Business, LinkedIn Learning or O’Reilly, and a budget for external training.
• Gym allowance.
• Corporate English lessons.
• Support for New Parents:
• 21 weeks of paid maternity leave, with the flexibility to work from home full-time until your child turns 1 year old.
• 4 weeks of paternity leave, plus the flexibility to work from home full-time until your child is 13 weeks old.

Our office perks include on-site massages and frequent team-building activities in various locations.

At EveryMatrix, we're committed to creating a supportive and inclusive workplace where you can thrive both personally and professionally. Come join us and experience the difference!

The product we are working on is one of TOP-3 navigation systems, complex web-services and other solutions related to it. The web and mobile apps handle information at massive scale and extend well beyond the search giving people and companies a lot of new useful options.

Requirements:

• Location in Warsaw (Office-based role in Warsaw).
• 6+ years of software development experience in Java.
• Advanced knowledge in Object-Oriented Design and programming concepts.
• Strong problem-solving skills.
• Good spoken and written English level - Upper-Intermediate or higher

Nice to have:

• Master’s degree in Engineering, Computer Science, or another technical related field.
• Experience with building cloud (SaaS) applications.
• Familiarity with Agile software development methodologies.
• Experience with technologies and standards such as: Tomcat, Jetty, NginX, Node.js, Jersey, Cassandra, PostgreSQL.
• Strong database design and SQL skills.
• Interest and ability to learn other coding languages as needed.

Responsibilities:

• Develop, test, maintain, and improve backend services and applications, primarily using Java.
• Contribute to the implementation of scalable and robust backend solutions meant primarily for internal tooling.
• Analyze functional requirements.
• Focus on creating solutions that provide value to internal users.

We offer:

• Opportunities to develop in various areas;
• Compensation package (20 paid vacation days, paid sick leaves);
• Flexible working hours;
• Medical Insurance;
• English courses with a native speaker, yoga (zoom);
• Paid tech training and other activities for professional growth;
• Hybrid work mode (∼3 days in the office);
• International business trips

• Comfortable office.

   

If your qualifications and experience match the requirements of the position, our recruitment team will reach out to you in a week maximum. Please rest assured that we carefully consider each candidate, but due to the amount of applications the review and further processing of your candidacy may take some time.

• We are developing a platform that receives securities and price data from multiple providers, enriches and validates it, and distributes the consolidated data to internal bank systems. Our team manages various web and desktop applications, web services, and Linux environments that enable visualization of securities and execution of related workflows.
  
  Our components are built using Java 8-11, JavaScript/TypeScript, Oracle, and Spring 4-5, including Spring Boot.

   

• Responsibilities:

  - Develop back-end systems using Java with well-tested code.
  - Support the development environment, primarily through automation using Jenkins CI and Bash.
  - Evaluate and implement new development tools, libraries, and methodologies to enhance quality.
  - Conduct peer code reviews for changes in the project codebase.
  - Collaborate effectively with a global team across multiple time zones, demonstrating strong verbal and written communication skills.
  - Provide constructive suggestions and alternative solutions to team members to identify the most efficient and optimized approaches.

   

• Mandatory Skills Description:

  The role requires extensive expertise in Java SE and Java EE with over a decade of professional experience, emphasizing strong proficiency in the Spring framework, including Boot, IoC, MVC, AOP, Security, Data, JDBC, and testing components. The candidate must be skilled in SQL and relational databases, specifically Oracle, and have a solid understanding of Servlets, servlet containers such as Tomcat, and application servers like Weblogic. Familiarity with CI/CD processes and tools, notably TeamCity and Jenkins, is also essential.
  
  Hard skills include:
  - Advanced Java SE and Java EE development
  - Comprehensive Spring framework application
  - SQL query writing and database management using Oracle
  - Knowledge of Servlets, Tomcat, and Weblogic server environments
  - Experience with CI/CD pipelines using TeamCity and Jenkins
  - Practical Linux system navigation, file and permission management, user and group administration, process and service handling, security keys and certificates, and basic Bash scripting
  
  Soft skills focus on:
  - Analytical problem-solving to identify and implement effective, maintainable solutions
  - Collaborative discussion and consensus-building within the team to select optimal approaches

   

• Nice-to-Have Skills Description:

  - Proficiency in Angular or similar frameworks (React, Vue), including Angular Material and RxJs, demonstrating capability in modern front-end development.
  - Ability to design and implement visually appealing and functional HTML/CSS layouts.
  - Strong expertise in Oracle database management and operations.
  - Familiarity with ELK stack for logging, monitoring, and data analysis.
  - Experience working with Spring Cloud modules and developing microservice architectures.

   

• Languages:
  • English: B2 Upper Intermediate

• A next-generation cross-asset data management platform to provide globally consistent data and innovative tools to support business strategy for trade/sales clients that is built on big data architecture, highly scalable, and cloud-ready. The platform enables industry-leading analytics, client reporting, regulatory compliance, surveillance, supervisory reporting, and data science solutions (data flame). The project tech stack: Apache Spark, Hive, Java, Scala, Spring, SQL, Kafka, Hadoop.
  
  We are looking for a strong Senior Java Developer with Big Data experience (Hadoop, Spark) capable of build the design and establish the framework in order to expose and distribute the Risk data to wide variety of consumers including Finance, Front office Risk Systems, Trading Systems, Back office and Account systems. This should cover low latency access and Streaming, Push / Pull mechanisms depending on the type of consumers.
  
  The role of the Senior Java Developer involves working with strong development teams (3 Senior Java Developers), the opportunity to work with big data improving knowledge in this domain utilizing the resources of an international bank.

   

• Responsibilities:

  • Design and build frameworks for ingesting/modeling the complex Risk data
  • Develop Low latency caching to service Front office risk systems

• Mandatory Skills Description:

  • At least 7 years of experience in software development, including professional backend software development experience;
  • Strong Knowledge of the Java programming languages
  • Understanding Java dependency injection frameworks, preferably Spring
  • Strong SQL skills
  • 2+ year of Big data development with extensive hands-on experience with Spark programming
  • Strong knowledge of big data technologies like Hadoop (Hive) and Spark
  • Understanding Data governance
  • Should be familiar with algorithms and design patterns
  • Understanding of distributed systems.
  • Understanding of CI/CD workflow.
  • Familiarity with the Linux environment, including scripting skills

   

• Nice-to-Have Skills Description:

  • Databricks and cloud services, preferably aws/gcp
  • Experience with in-memory databases and caching
  • Data modeling: fact, dimension tables, SCD
  • Understanding of open table formats: iceberg, delta lake, hudi
  • Understanding of open file formats: parquet, orc
  • Job Orchestration tools like Autosys or Airflow
  • Financial background (where possible)

   

• Languages:
  • English: B2 Upper Intermediate

👨‍💻We invite a Junior/Middle Java or Kotlin Developer to join our team for long-term cooperation. Gransoft develop an international health insurance portal. Our project has become especially important at this time.

▪️Office Location: Uzhhorod or Gdansk

Requirements:

— Strong and confident knowledge of Java or Kotlin, Hibernate, Spring, MySQL

— Experience with any software development 1-5 years

— Experience with Java/Kotlin provides a significant advantage

— An intermediate-level proficiency in English: reading, writing and speaking

— Responsible attitude to the tasks and deadlines

— Work from office only

We offer:

— Interesting and challenging project

— Creative and friendly atmosphere

— Our company policy is to welcome your ideas and suggestions

— An international team of experienced Java/Kotlin developers

— Paid vacations and days off during national holidays

— Flexible work schedule

— 8-hour workday

— Office in Uzhhorod or Gdansk

— Paid English language courses

— The company provides relocation support and, if needed, assists with the moving process and finding accommodation

More details could be given during an interview.

Please include your Telegram username in CV.

👨‍💻We invite a Junior/Middle Java or Kotlin Developer to join our team for long-term cooperation. Gransoft develop an international health insurance portal. Our project has become especially important at this time.

Office Location: Uzhhorod or Gdańsk.
Please note: This is an on-site position only!
Hybrid and remote work arrangements are not available.

Requirements:

— Strong and confident knowledge of Java or Kotlin, Hibernate, Spring, MySQL

— Experience with any software development 1-5 years

— Experience with Java/Kotlin provides a significant advantage

— An intermediate-level proficiency in English: reading, writing and speaking

— Responsible attitude to the tasks and deadlines

— Work from office only

We offer:

— Interesting and challenging project

— Creative and friendly atmosphere

— Our company policy is to welcome your ideas and suggestions

— An international team of experienced Java/Kotlin developers

— Paid vacations and days off during national holidays

— Flexible work schedule

— 8-hour workday

— Office in Uzhhorod or Gdansk

— Paid English language courses

— The company provides relocation support and, if needed, assists with the moving process and finding accommodation

More details could be given during an interview.

Please include your Telegram username in CV.

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, Spring Boot 3.5, Kafka, PostgreSQL, MongoDB, Docker, Kubernetes, GCP
 

RESPONSIBILITIES

• Taking an active part in product development from scratch (hands-on functionality development ~50% of the time) and developing functional documentation
• Leading a development team
• Ensuring the highest standards of the team’s performance are reachable
• Planning, prioritizing, estimating, and executing tasks
• Collaborating with business leads across the company to define milestones and deliveries for new functionality to be added to the product
• Taking part in team extension (interviewing, providing feedback, participating in interview post-briefs)

REQUIREMENTS

• 7+ years of commercial development experience using Java-related technologies
• 5+ years of working experience with API development
• Experience in managing development teams
• Ability to work independently with defined problems on a middle-senior level in certain areas of technical or business expertise
• Proactive and result-oriented mindset
• Strong problem-solving skills
• At least Upper-Intermediate English level

NICE TO HAVE

• Knowledge of JavaScript/React

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

Project Description:

A next-generation cross-asset data management platform to provide globally consistent data and innovative tools to support business strategy for trade/sales clients that is built on big data architecture, highly scalable, and cloud-ready. The platform enables industry-leading analytics, client reporting, regulatory compliance, surveillance, supervisory reporting, and data science solutions (data flame). The project tech stack: Apache Spark, Hive, Java, Scala, Spring, SQL, Kafka, Hadoop.

We are looking for a strong Senior Java Developer with Big Data experience (Hadoop, Spark) capable of build the design and establish the framework in order to expose and distribute the Risk data to wide variety of consumers including Finance, Front office Risk Systems, Trading Systems, Back office and Account systems. This should cover low latency access and Streaming, Push / Pull mechanisms depending on the type of consumers.

The role of the Senior Java Developer involves working with strong development teams (3 Senior Java Developers), the opportunity to work with big data improving knowledge in this domain utilizing the resources of an international bank.

Responsibilities:

• Design and build frameworks for ingesting/modeling the complex Risk data
• Develop Low latency caching to service Front office risk systems

Mandatory Skills Description:

• At least 5 years of experience in software development, including professional backend software development experience;
• Strong Knowledge of Java programming languages
• 1+ year of Big data development with extensive hands-on experience with Spark programming
• Strong knowledge of big data technologies like Hadoop (Hive) and Spark
• Should be familiar with algorithms and design patterns
• Understanding of distributed systems.
• Understanding of CI/CD workflow.
• Familiarity with Linux environment including scripting skills

Nice-to-Have Skills Description:

• Experience In-memory databases and caching
• Job Orchestration tools like Autosys or Airflow
• Financial background (where possible)

Languages:

English: B2 Upper Intermediate

Please provide your CV and LinkedIn profile. We demand your LinkedIn profile with actual working experience to move forward with your application!

Fundomate is looking for a Senior Java Back-End Developer to join our team. Fundomate is an innovative fintech company operating in the alternative lending space and providing both direct-to-business and white-label turnkey solutions.

You will be good match if:

- You have history of solving non trivial problems in one of your previous projects

- You have wide technology background (backend, frontend, devops, ops, mobile development, etc), so you will understand the connections between technologies and expand this knowledge with domain and business needs. 

- You have experience working in US fintech domain 

We will be good match if:

- You want to solve (or learn to solve) complex business problems

- You want to experiment with processes/development technics/tools

- You are interested in continuous improvement and automation of product and working process

Requirements:

- 6+ years of experience developing web applications

- 3+ years of experience in any IoC & DI framework (Spring, Quarkus, Micronaut, etc.)

- TDD experience in production is a must have

- Experienced in pair programming

- Good knowledge of MicroServices (Kubernetes knowledge is a plus)

- Experience working with tools like Git, Gradle, Jenkins or similar CI/CD

- Working experience in Industry Standard protocols related API Security including OAuth (KeyCloak is a plus)

- Working experience with RDBMs like Postgres/MySQL or any similar

- Understanding of asynchronous message-based communication like Kafka, GCP Pub/Sub, AWS SNS/SQS, etc. (Kafka as an advantage)

- Strong Agile/Scrum/Kanban development experience

- Experience in third party systems integration (XML or JSON api)

- Knowledge of any cloud provider (AWS as an advantage)

Our technical Stack:

- Java 25

- Microservices (Quarkus)

- Postgresql/MySQL

- Kafka

- Keycloak

- Kubernetes & Docker

- AWS (EKS, MSK, RDS, etc.)

- Gradle

- Bitbucket pipelines, gitops approach

- Lombok, MapStruct, Flyway

We offer:

- Innovative product with modern technology stack

- Competitive salary (paid in $)

- Social package (paid vacations, sick leaves and etc)

- PE accounting and support

- WFH and remote working mode possibility, Ukrainian working hours

- No bureaucracy, micromanagement and time-tracking