Jobs Java

Summary

We are a fast-growing U.S. healthtech company specializing in AI-powered optimization software for hospitals. Our platform helps healthcare providers predict patient outcomes, optimize staffing and operating room utilization, reduce length of stay, and prevent adverse events. We are currently deployed in multiple hospital systems and expanding rapidly.
 

We are looking for a Senior Java Integration Engineer to play a critical role in connecting our AI models with real-world clinical data from hospital Electronic Medical Record (EMR) systems.

Location: Remote (US Time Zone Preferred) Type: Full-time

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Role Summary

We are seeking an experienced Senior Java Engineer with a strong healthcare integration background to build and maintain the integration layer between hospital Electronic Medical Record (EMR/EHR) systems and our predictive analytics platform.

You will design and implement robust, reusable integrations with major EMR vendors - starting with Epic, followed by Cerner, Allscripts, and others - using modern standards like FHIR and HL7 v2. This role is central to enabling our AI solutions to deliver measurable impact in live hospital environments.
 

What You’ll Work On

• Design, build, and maintain a Java + Spring Boot microservices layer that securely mediates between EMR systems and our downstream AI and optimization modules.
• Implement inbound integrations to pull structured clinical data (demographics, labs, vitals, medications, surgical records, notes, etc.) from EMRs using FHIR R4 APIs and HL7 v2 messaging protocols.
• Develop outbound integrations to push our predictions and recommendations back into the EMR, including support for SMART on FHIR embedded applications.
• Lead the migration from current file-based (CSV) integrations to fully automated, real-time API-driven integrations.
• Design a highly reusable integration framework that can be deployed across multiple hospital systems and EMR vendors with minimal customization.
• Collaborate closely with AI/ML, optimization, and product teams to ensure seamless data flow for key clinical modules.
• Ensure all integrations meet HIPAA, HITECH, and other healthcare compliance and security standards.
   

Tech Stack

• Backend: Java 25, Spring Boot 4.x
• Integration: FHIR R4, SMART on FHIR, HL7 v2
• Architecture: Microservices, REST APIs, Message-driven patterns
• Cloud: AWS
• Other: OAuth2, security best practices for PHI handling
   

Must-Have Qualifications

• 7+ years of backend software development, with at least 4+ years of recent hands-on experience using Java 17+ and Spring Boot 3.x/4.x.
• Strong, demonstrable experience integrating with healthcare EMR/EHR systems - particularly Epic, Cerner, Allscripts, MEDITECH, or similar platforms.
• Hands-on working knowledge of FHIR (R4 preferred) and HL7 v2 messaging standards.
• Proven ability to design and implement secure, scalable integration layers handling sensitive clinical data (demographics, labs, vitals, surgical data, etc.).
• Strong understanding of healthcare data privacy and compliance (HIPAA, PHI handling).
• Experience working in a small, senior engineering team with end-to-end ownership.
   

Nice-to-Haves (Big Plus)

• Experience developing SMART on FHIR applications.
• Deep familiarity with the Epic ecosystem (Bridges, App Orchard, MyChart, Interconnect, etc.).
• Previous work with other clinical systems, health information exchanges (HIEs), or medical device integration platforms.
• Exposure to regulated environments outside of healthcare (finance, insurance, government) with strict data security and compliance requirements.
• AWS cloud experience (EKS, IAM, security services).
• Full-stack mindset or basic front-end experience - a plus but not required.
• Passion for healthcare technology and improving patient outcomes.

We strongly encourage candidates with relevant healthcare integration experience - even if not perfectly matched to Epic/Cerner - to apply and highlight their background.

We’re looking for a Senior Java Backend Engineer to help our client enable seamless integration between AI-driven hospital optimization tools and major EMR/EHR systems, improving real-time clinical and operational decision-making.

Join a healthcare integration team building the backend layer that connects AI-powered hospital optimization tools with EMR/EHR systems like Epic and Cerner. The work enables real-time clinical data exchange and directly supports better hospital operations, staffing, and patient flow across US healthcare systems.

Beetroot partners with our client to extend their engineering capacity and scale their healthcare platform across multiple hospital networks in the US.

You will work on a high-impact integration layer that sits at the core of clinical data flow, helping translate complex hospital data into actionable insights and ensuring that AI-driven recommendations are reliably delivered back into daily clinical workflows.

What you'll do in this role  

• Own and maintain Java + Spring Boot microservices for EMR/EHR integration
• Build integrations with Epic first, then Cerner, Allscripts, and other vendors
• Implement inbound data flows via FHIR APIs and HL7 v2 (labs, vitals, demographics, surgical data)
• Support outbound flows delivering AI predictions back into hospital systems
• Contribute to migration from file-based (CSV) to API-driven architecture
• Design reusable integration patterns across multiple hospital deployments

We're looking for

• 5+ years of Java backend development experience with strong skills in Java 17+ and Spring Boot (3.x / 4.x)
• Hands-on experience integrating with healthcare systems (Epic, Cerner, Allscripts, MEDITECH, etc.) — healthcare integration experience is a must-have and especially important for this role
• Good understanding of HL7 v2 and FHIR (R4 preferred)
• Experience with microservices and REST API design
• System integration & API design
• Solid understanding of microservice architecture
• Ability to work independently in a senior-level engineering team
• Strong interest and proven experience in healthcare technology and complex system integration in the healthcare domain
• Motivation to work on high-impact, real-world systems

How to knock our socks off

• Experience with SMART on FHIR
• Knowledge of Epic ecosystem (Bridges, App Orchard, MyChart)
• AWS familiarity
• Full-stack exposure
• Understanding of HIPAA / PHI requirements
• Ability to name five or more dishes that include beetroot besides borshch 😉

✔ Not checking every box?

This job looks very exciting, but you hesitate to apply because of the confidence gap? Reach out to us anyway! Beetroot is an inclusive workplace that considers all applicants. We’re committed to openness — promoting equality and fostering an environment where different backgrounds, ideas, and experiences are not just accepted, but embraced. So let’s discover together whether we could be an excellent fit for each other.

Please send us your CV in English, and we'll be happy to discuss your application further.

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 Middle 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 up to 50 days of work from home per year.
• 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! 
 

Our client is one of the leading companies on the market which provides Big Data, Data Integration, Data Preparation and Enterprise Application Integration software and services. Its products allow to build data integration process, migrate data safely, process big amount of data, cleanse data and check its quality.

Connector is a core element of the products, which allows to connect, extract data from a data source, transform data according to business needs and load data back to some storage. It is used in traditional software such as Studio for Data Integration as well as in the modern Cloud services.

Continuous emerging of new technologies and data repositories lead to demand growth of creating new connectors and adapting the existing ones.

For this reason, we are looking for a Java developer to join the team to address the demand and provide our client with the best quality service.
 

Requirements:

• Good knowledge of Java Core 8
• Some experience with SQL (knowledge of JDBC is a huge plus)
• Understanding and some experience in testing techniques (JUnit)
• English (both spoken and written) at least at Intermediate level that allows communicating with an international team on a daily basis

 Optional but desirable:

• Pet projects on Java Core
• Knowledge of JSON, XML
• Knowledge or experience with development and CI tools: Git/GitHub, Maven, Docker

Job responsibilities:

• Design and implement Talend Connectors (see below)
• Unit and Integration testing
• Respond to feature requests, bug reports, performance issues and ad-hoc questions

Advantages:

• Smooth onboarding process
• Working under the supervision of a skilled teammate
• Chance to work with a great variety of technologies and DBs (both SQL and non-SQL such as Snowflake, PostgreSQL, Mongo, Cassandra, DynamoDB, Neo4j)
• Work collaboratively in a distributed international team (France, Germany, China)

We are a U.S.-based fintech startup operating in the investment and financial services space. Our distributed teams work across Poland, the United States, and Ireland, collaborating on technology-driven solutions related to stocks and investments.

Security, compliance, and the responsible handling of sensitive financial data are central to how we operate, as we build scalable products in a regulated environment.

Responsibilities

- Develop high-quality Java microservices using Spring Boot.
- Build Kafka producers, consumers, and stream-processing apps.
- Design event-driven architectures with reliability and performance.
- Implement service resiliency patterns such as retries and circuit breakers. - Collaborate on distributed system design and integration.

• Ensure logging, tracing, and monitoring of backend services.

• Support performance tuning and root cause analysis.

   

• Skills
  - Strong in Java, Spring Boot, microservices patterns.
  - Hands-on Kafka development—streams, partitions, consumer groups. - Knowledge of distributed systems architecture.
  - Familiarity with Docker, cloud-native packaging.
  - Experience in REST APIs, schema evolution, and contracts.
  - Understanding of observability (logs, metrics, traces).
  - Good debugging and performance optimization skills.

For this role the client requires the candidate to have been based in Poland for 2+ years

Hourly rate: 25-35 usd/hour gross

Contract duration: 1 year with prolongation 

Vacation covered - no

IBFD (International Bureau of Fiscal Documentation) is the world's foremost authority on cross-border taxation, established in 1938. Tax practitioners from all over the world rely on IBFD for high-quality and independent tax knowledge and research. As a non-profit foundation, IBFD delivers tax knowledge through publications, training, research, and data. Around 250 employees work in four offices on three continents, from 40 countries, with 700+ external authors and correspondents worldwide.

Our team 
We work in Agile teams with a service-oriented architecture and a strong DevOps culture. Applications are being migrated to a Kubernetes cluster. The Tech & Data department includes ~30 full-time employees and external developers in near-shore and offshore arrangements.

Our сurrent Tech Stack:
 Java, Git — XML, XSL, XQuery — DTD, Schema, Schematron — REST, OpenAPI, Docker, Kubernetes — RDF, OWL, SPARQL — HTML, CSS, JSON, JavaScript

Requirements 

• 5+ years of experience in Java application development, Git, and IDEs 
• Experience with microservices, REST, OpenAPI, Docker, and Kubernetes
•  5+ years of experience in XML content development, including enrichment processes
• Significant experience in transforming XML for online presentation: HTML, CSS, DOM, JSON, JavaScript
• Strong background in XML content modelling (DTD, Schema) and validation methodologies (Schematron)
• Experience with knowledge graphs (RDF, OWL, SPARQL, and related semantic web technologies)
• Proficient in developing applications for XML editing tools (XMetaL), conversion processes (XSL, XQuery), ML-based enrichment strategies, and prototyping
• Experience working in Agile environments and collaborating with product, development, UX, and research teams
• English — B2+

Responsibilities 

• Review business and functional requirements and propose technical solutions; describe solutions and supplement with technical diagrams as needed
• Collaborate closely with other development team members to ensure proposed solutions are technically feasible and align with the organization's architecture and infrastructure standards
• Develop solutions using the technologies described above; in some cases, assign tasks to offshore developers
• Write clear and concise documentation of application features, decisions, and technical constraints
• Stay current with the latest research and best practices in content processing, XML, graph technologies, and AI-driven content enrichment; suggest improvements to processes, tools, and the technology landscape

Will be a plus 

• Experience in academic publishing, standards, citations 
• Experience with additional publication formats: PDF generation, ePub, Excel, XML-based typesetting
• Experience with enterprise Content Management Systems (e.g., Alfresco)
• Experience with Claude Code or other AI-based programming tooling
• Exposure to AI-driven or data-informed thinking related to content development approaches

What we offer:

• Access to Tools & Resources: Well-defined PDP (Personal Development Plan) and PIP (Personal Improvement Plan) policies.
• Education Budget: Dedicated budget for courses, certifications, and professional development
• Bintime Academy: Internal university for professional development
• Reliable Infrastructure: Starlink internet, а generator, and a comfortable workspace to ensure uninterrupted work.
• Team Budgets: Dedicated resources for team initiatives, training, and collaboration.
• Medical Insurance: Coverage within Ukraine.
• Mental Health Support: Access to psychotherapy sessions via Pleso.
• Individual English Lessons: To enhance your language skills.
• Work-Life Balance: Generous vacation and sick leave policies.
• Corporate Events: Regular team-building activities and company events.

• One of the world's largest providers of products and services to the energy industry has a need to develop and support enterprise information system in Oil & Gas domain.
  Product being developed is a cloud solution for interpretation of geological and geophysical data. Project is based on SCRUM methodology.
  Our project is stable, long-term and constantly adopts new technologies such as newest Java and Eclipse RCP versions, cloud and GPU computing, microservices architecture and other innovative frameworks.
  Work supposes close cooperation with Customer team located in Houston and following Agile principles.
  Our team is senior, supportive and friendly.
   

• Responsibilities:

  • Collaborate closely with geophysicists, data scientists, and software engineers to translate scientific domain requirements into robust on-prem or Cloud software
  solutions.
  • Design, develop, and maintain high-performance applications for geophysical and geological data analysis, interpretation and visualization (e.g., seismic, horizon,
  fault, velocity model, etc.)
  • Present architectural designs and technical proposals to the architecture review board.
  • Ability to break down development tasks and lay out clear implementation roadmaps.
  • Implement and optimize computation algorithms
  • Design and develop both thin and thick client applications that interact with cloud-based microservices.
  • Ensure high code quality through unit testing, code reviews, security hardening and continuous integration with other domain tools
  • Provide technical support and lead user troubleshooting sessions to resolve issues and ensure smooth operation of DSG application.
  • Mentor junior developers and actively contribute to architectural and implementation decisions.
  • Embrace Agile/Scrum methodologies, delivering and demonstrating working solutions at the end of each sprint
  • Stay current with emerging technologies and trends in geophysical computing and software development.
   

• Mandatory Skills Description:

  6+ years of hands-on Java development experience
  Strong Java Core knowledge
  Experience with desktop development frameworks: Swing, SWT, or Eclipse RCP
  Proven experience designing and building complex systems end-to-end, not just maintaining or extending existing ones
  Practical understanding of multithreaded programming: ability to implement concurrency in code directly, not only through third-party libraries
  Solid knowledge of design patterns and software architecture principles
  Ability to clearly articulate past projects, personal responsibilities, and concrete individual contributions
  Experience working in non-microservices, non-cloud-native development environments (desktop, embedded, or domain-specific platforms)
  Stable career trajectory, no fragmented job history with short tenures

Delasport — Implementing Technological Solutions Here and Now

Delasport is an iGaming software company providing Sports Betting & Online Casino software and turnkey B2B solutions. Since 2010, we have made a significant impact on the industry, earning awards and expanding our global presence. With offices in Bulgaria, Ukraine, and Malta, our team of more than 500 experts continues to drive innovation and strive for excellence. We are looking for top talent to join our R&D center in Kyiv.

TECHNOLOGY STACK

Microservice architecture, Java 21, Spring Boot 3.5+, PostgreSQL, MongoDB, Kafka, Google Cloud Platform, Kubernetes

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 unit tests
• Solid debugging and troubleshooting skills
• Proactive and result-oriented mindset
• Strong problem-solving skills
• At least Upper-Intermediate English level

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

This vacancy requires office attendance in Kyiv

Responsibilities

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

Requirements

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

Would be great to have:

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

What we offer:

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

• Project Description:

  One of the world's largest providers of products and services to the energy industry has a need to develop and support enterprise information system in Oil & Gas domain.
  Product being developed is a cloud solution for interpretation of geological and geophysical data. Project is based on SCRUM methodology.
  Our project is stable, long-term and constantly adopts new technologies such as newest Java and Eclipse RCP versions, cloud and GPU computing, microservices architecture and other innovative frameworks.
  Work supposes close cooperation with Customer team located in Houston and following Agile principles.
  Our team is senior, supportive and friendly.

• Responsibilities:

  • Collaborate closely with geophysicists, data scientists, and software engineers to translate scientific domain requirements into robust on-prem or Cloud software
  solutions.
  • Design, develop, and maintain high-performance applications for geophysical and geological data analysis, interpretation and visualization (e.g., seismic, horizon,
  fault, velocity model, etc.)
  • Present architectural designs and technical proposals to the architecture review board.
  • Ability to break down development tasks and lay out clear implementation roadmaps.
  • Implement and optimize computation algorithms
  • Design and develop both thin and thick client applications that interact with cloud-based microservices.
  • Ensure high code quality through unit testing, code reviews, security hardening and continuous integration with other domain tools
  • Provide technical support and lead user troubleshooting sessions to resolve issues and ensure smooth operation of DSG application.
  • Mentor junior developers and actively contribute to architectural and implementation decisions.
  • Embrace Agile/Scrum methodologies, delivering and demonstrating working solutions at the end of each sprint
  • Stay current with emerging technologies and trends in geophysical computing and software development.

• Mandatory Skills Description:

  6+ years of hands-on Java development experience
  Strong Java Core knowledge
  Experience with desktop development frameworks: Swing, SWT, or Eclipse RCP
  Proven experience designing and building complex systems end-to-end, not just maintaining or extending existing ones
  Practical understanding of multithreaded programming: ability to implement concurrency in code directly, not only through third-party libraries
  Solid knowledge of design patterns and software architecture principles
  Ability to clearly articulate past projects, personal responsibilities, and concrete individual contributions
  Experience working in non-microservices, non-cloud-native development environments (desktop, embedded, or domain-specific platforms)
  Stable career trajectory, no fragmented job history with short tenures

• Nice-to-Have Skills Description:

  C++ development skills
  Practical experience with the Eclipse RCP framework
  OSGi knowledge
  Oil & Gas domain experience

• Languages:
  • English: B2 Upper Intermediate

N-iX is looking for Middle Java Engineer (with Python and JavaScript) to join our team! Our customer is a global marketplace for savings and investments, providing savers with effortless access to high-yield savings accounts and investment options from over 400 partner banks worldwide. It eliminates geographic limitations, ensuring transparency, convenience, and competitive rates. For banks, it offers cost-efficient deposit funding and innovative Banking-as-a-Service solutions. As an experienced Software Engineer, you will support our payments operations and finance teams by customizing and developing new features for the team's two main services: Payments Processing Service and Oracle NetSuite. Additionally, you will contribute to building infrastructure that promotes autonomy across various cross-functional teams.
 

Responsibilities:

• Customize and develop new features for Payments Processing Service and Oracle NetSuite.
• Design, implement, deploy, and maintain services.
• Write and maintain automated tests.
• End-to-end ownership.
• Guiding features from implementation to testing, refinement, and launch. 
• Contributing to CI/CD pipelines and infrastructure supporting team autonomy.
• Participate in an agile, collaborative environment, align technical output with current project requirements, and actively communicate with stakeholders.

Requirements:

• Minimum 3 years of experience in Java.
• Strong proficiency in SQL.
• Experience with JavaScript frameworks or libraries, preferably: Node.js, React or Next.js.
• A strong preference will be shown for candidates possessing at least 1 year of experience in both Python and JavaScript
• Experience in developing and maintaining automated tests.
• Solid understanding of software engineering best practices (coding standards, test coverage, deployment).
• Bachelor’s degree in Engineering or Computer Science.
• Proficiency in spoken and written English.
• Ukrainian language Advanced or higher.

Nice-to-Have Skills:

• Familiarity with Oracle NetSuite (SuiteScript, SuiteTalk, RESTlet).
• AWS Lambda.
• Shell Scripting, .NET technologies.
• CI/CD pipeline setup and maintenance experience.
• Proficiency with AI productivity tools (Cursor, Claude) and openness to work across diverse tech stacks.
• Previous experience within the FinTech sector will be considered a significant advantage.

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:

One of the world's largest providers of products and services to the energy industry has a need to develop and support enterprise information system in Oil & Gas domain.
Product being developed is a cloud solution for interpretation of geological and geophysical data. Project is based on SCRUM methodology.
Our project is stable, long-term and constantly adopts new technologies such as newest Java and Eclipse RCP versions, cloud and GPU computing, microservices architecture and other innovative frameworks.
Work supposes close cooperation with Customer team located in Houston and following Agile principles.
Our team is senior, supportive and friendly.

Responsibilities:

• Collaborate closely with geophysicists, data scientists, and software engineers to translate scientific domain requirements into robust on-prem or Cloud software
solutions.
• Design, develop, and maintain high-performance applications for geophysical and geological data analysis, interpretation and visualization (e.g., seismic, horizon,
fault, velocity model, etc.)
• Present architectural designs and technical proposals to the architecture review board.
• Ability to break down development tasks and lay out clear implementation roadmaps.
• Implement and optimize computation algorithms
• Design and develop both thin and thick client applications that interact with cloud-based microservices.
• Ensure high code quality through unit testing, code reviews, security hardening and continuous integration with other domain tools
• Provide technical support and lead user troubleshooting sessions to resolve issues and ensure smooth operation of DSG application.
• Mentor junior developers and actively contribute to architectural and implementation decisions.
• Embrace Agile/Scrum methodologies, delivering and demonstrating working solutions at the end of each sprint
• Stay current with emerging technologies and trends in geophysical computing and software development.

Mandatory Skills Description:

6+ years of hands-on Java development experience
Strong Java Core knowledge
Experience with desktop development frameworks: Swing, SWT, or Eclipse RCP
Proven experience designing and building complex systems end-to-end, not just maintaining or extending existing ones
Practical understanding of multithreaded programming: ability to implement concurrency in code directly, not only through third-party libraries
Solid knowledge of design patterns and software architecture principles
Ability to clearly articulate past projects, personal responsibilities, and concrete individual contributions
Experience working in non-microservices, non-cloud-native development environments (desktop, embedded, or domain-specific platforms)
Stable career trajectory, no fragmented job history with short tenures

Nice-to-Have Skills Description:

C++ development skills
Practical experience with the Eclipse RCP framework
OSGi knowledge
Oil & Gas domain experience

Languages:

English: B2 Upper Intermediate

Are you ready to take your Java expertise to the next level? Join our team to work with a highly scalable, highly available, real-time advertising platform that serves millions of users worldwide and handles massive real-time data at scale. We are hiring a Software Engineer to be a vital part of this mission. If you bring extensive experience building complex systems, love great technology at scale, jumping in, and figuring things out in any system, this role is for you! Working in a modern, cloud-native environment, you’ll collaborate with a team of top engineers to develop low-latency, distributed systems capable of handling millions of QPS. This is an opportunity to combine innovation, performance engineering, and large-scale impact - while shaping the future of digital entertainment technology.
 

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.
 

Who are we looking for?

Skills & Experience

• 4+ years of experience building large scale and low latency distributed systems
• 5+ years of Java backend development experience;
• Solid understanding of algorithms, data structures, performance optimization techniques, object-oriented programming, multi-threading, and real-time programming 
• Experience with distributed caching, SQL/NO SQL, and other databases is a plus 
• Experience with Big Data and cloud services such as AWS/GCP is a plus
• Experience in advertising domain a big plus 
• Self-motivated individual with a high level of accountability and ownership
• Critical thinking and practical decision making
• Can do, results-oriented mindset
• Software development best practices: test-driven development, automated testing;
• Knowledge of distributed systems architecture and service oriented systems;
• English: B2+

Nice to have

• Familiarity with machine learning frameworks (e.g., TensorFlow, PyTorch) and working with large language models (LLMs)

Responsibilities

• Develop and maintain complex backend services
• Collaborate with cross-functional teams (Product, Design, QA) to deliver high-quality features;
• Write unit, integration, and end-to-end tests;
• Maintain and extend existing services to meet new requirements;
• Participate in code reviews and contribute to technical discussions;
• Help maintain technical documentation;
• Assist in improving CI/CD pipelines;
• Contribute to best practices within the development team.

About the project

Israeli agrotech product company is scaling rapidly from 60k to 250k+ users and looking for experienced backend engineers to improve infrastructure scalability and system reliability.

The team is currently focused on scalability challenges, backend optimization, and future AI-ready data collection.

Open Roles

• 1x Team Lead
• 2x Senior Backend Developers

Tech Stack

• Java
• Cassandra
• MySQL → Aurora
• Elasticsearch / OpenSearch

Requirements

• Strong commercial experience with Java backend development
• Experience designing scalable distributed systems
• Experience with high-load infrastructure
• Strong database expertise:
  • Cassandra
  • MySQL/Aurora
• Experience with Elasticsearch/OpenSearch
• Understanding of scalability and performance optimization
• English — B2+

Will be a plus

• Experience with messaging systems
• Experience with WhatsApp/Facebook APIs
• AI/analytics-oriented data architecture experience

Responsibilities

• Improve backend scalability and reliability
• Optimize infrastructure for rapid user growth
• Design scalable backend services
• Work on messaging and communication systems
• Build systems for future AI data analysis
• Collaborate with cross-functional engineering teams

A product company is looking for a Java Developer in Limassol, Cyprus.

The company is a global live-streaming platform with over 450 million users, enabling creators to engage with audiences and monetize their content. The team consists of 350+ professionals worldwide.

The company offers:
• stock options and performance review bonus
• 21 working days of paid vacation
• 100% paid sick leave
• comprehensive social and welfare package
• medical insurance (100% for employees and 75% for family members)
• daily meals in the office
• Greek lessons

Requirements:
• experience with Java
• experience with SQL
• experience with Kafka (or alternatives)