Jobs

Company: CodePhusion
 

Location: Remote (EU time zone preferred)
 

Engagement: Part-Time (flexible hours, ongoing collaboration)

About the Role

We are seeking a highly experienced Senior Java Developer to join our team on a part-time basis. You will lead the design and implementation of a new backend module that abstracts and manages diverse data sources—ranging from document repositories to searchable web content and email folders — into a unified, intelligent knowledge infrastructure.

Key Responsibilities

• Analyze the existing backend codebase (Java, Spring Boot).
• Design and implement a modular system to represent and manage various knowledge sources (documents, web content, external APIs, etc.).
• Develop indexing capabilities using Lucene or similar tools, vector search integration, and optionally graph-based relationships.
• Ensure the solution integrates well with existing APIs and user-facing modules.
• Write clean, efficient, and testable code with clear technical documentation.

• Collaborate with team members and contribute to strategic backend architecture decisions.

   

Required Skills & Experience

• 6+ years of professional experience in backend development with Java (Spring Boot).
• Strong knowledge of modular API architecture and scalable system design.
• Experience with text search engines (e.g., Lucene, Elasticsearch) and semantic/vector search.
• Familiarity with structured and unstructured data handling (PDF, Word, websites, email APIs).
• Strong written and verbal communication skills; able to document and present ideas clearly.

Nice to Have

• Knowledge of graph databases (e.g., Neo4j) or semantic search infrastructure.
• Previous work in legal tech, data integration, or AI-based knowledge systems.
• Contributions to open-source or research-focused backend projects.

What We Offer

• Flexible remote part-time collaboration.
• A focused and agile development environment.
• Autonomy and responsibility in shaping a critical backend system.
• A chance to work with a high-performing international tech team.

It is a high-growth SaaS company selling IT Service Management, a space that is being propelled into high growth as businesses worldwide accelerate their digital transformation and start to adopt new workstyles for their employees. The company is recognized in the Gartner Magic Quadrant for ITSM and is the mid-tier industry leader in Gartner Peer Insights. AWS awarded the company their Rising ISV Star Award for 2022.

It has over 4,000 customers in 140 countries. Deployed in 42 different languages and used daily by over 100,000 system administrators. The software impacts the daily working lives of over 9 million end users.

Responsibilities:

- Develop the next generation of our leading product, a SaaS-based microservices solution architecture deployed in the AWS cloud.

- Develop advanced, enterprise-grade, high-performance, and scalable web applications according to the newest, latest guidelines and best practices.

- Continuously discover, evaluate, and implement new technologies to maximize development efficiency and quality.

- Collaborate closely with product and design teams to create innovative user interfaces and features.

Qualifications:

- 5+ years of programming experience as a Java developer.

- 3+ years experience in Spring framework and Microservices.

- Excellent architecture-level design and understanding of large-scale systems.

- SQL and NoSQL Databases experience and knowledge.

- Versed in software engineering principles and practices - Agile development.

- Spoken and written English

Advantage

- Experienced with Docker/Helm/Kubernetes technologies

- Experienced with Lambdas, RabbitMQ, SQS, Redis, Kinesis, Elastic Cache\Search Graphql, API GW, NLB, NodeJS, TypeScript

- BA/BSC in Computer Science, and/or equivalent

- Experience in React or Angular, JavaScript, HTML5, CSS 3, browser behavior, page life-cycle, and DOM events.

Apply now and will contact you within 24 hours:)

Start a new page of your career growth with us!

Requirements:

• Strong experience with Java, Spring (Boot, Security, Data), and Hibernate
• Microservices architecture development experience
• Solid knowledge of:
  • AWS (EC2, RDS, SNS, SQS, Lambda)
    Kubernetes, Docker
  • PostgreSQL
  • Elasticsearch or OpenSearch
• Conversational English for team communication and documentation
• Ability to work from an office in the EU

Nice to have:

• Experience in backend development for mobile applications

We offer:

• Competitive market-level salary 

• International team and a chance to work on a world-class product

• Compensation for lunches

• Opportunities for professional growth and development

Looking for a Java developer for our client in Insurance domain.

Key Responsibilities

• Design, develop and maintain backend services using Java 17+, Spring Boot and related Spring components.
• Build and optimise data-access layers with JPA / Hibernate and SQL.
• Deploy and operate services on AWS (ECS, S3, RDS, CloudWatch).
• Make small/mid changes in frontend app Angular (TypeScript), ensuring responsive, accessible UI implementation (HTML / CSS).
• Contribute to code reviews, technical discussions and continuous improvement initiatives.
• Work closely with a Senior Developer / Tech Lead mentor and grow toward technical-leadership responsibilities.

Required Qualifications

• 3+ years of commercial Java development experience.
• Solid knowledge of Spring Framework (Boot, Data, Security).
• Hands-on experience with AWS cloud services (ECS, S3, RDS, CloudWatch).
• Proficiency in JPA / Hibernate and relational databases (SQL).
• Practical front-end experience with Angular, TypeScript/JavaScript, HTML and CSS.
• Upper-intermediate or higher spoken and written English.
   

What We Offer

• 100 % remote engagement with flexible working hours.
• Dedicated mentorship from a Senior / Tech Lead-level engineer.
• Clear pathway to technical-leadership roles.
• Challenging, domain-critical tasks within a modern cloud environment.
• Knowledge-sharing culture and support from an experienced, collaborative team.

Please do not send your CV if you do not have any work experience with Java and Angular/TypeScript/JavaScript

The project involves the design, development, and maintenance of enterprise-level data processing and reporting solutions. It includes working with SAP Data Services for ETL workflows, SAP Business Objects for report development, and modern backend technologies such as Java and Spring Framework. The goal is to ensure accurate data transformation, integration, and presentation across systems in a scalable and reliable environment.

• Responsibilities:

  Install and configure SAP IPS/DS (BODS) and SAP BO tools.
  
  Design, build, and maintain ETL workflows using SAP Data Services and DBT.
  
  Develop and maintain Business Objects reports.
  
  Implement backend logic using Java 8+, Spring Framework, Hibernate, and Oracle DB.
  
  Write and optimize complex SQL queries.
  
  Ensure performance and data accuracy across transformation pipelines.
  
  Collaborate with cross-functional teams in an Agile environment.
  
  (Optional) Support frontend development using Angular/React/JSP if needed.
  
  Proactively contribute to problem-solving and system improvements.
  
  Communicate effectively with stakeholders and team members.

  Mandatory Skills Description:

  Overall experience:
  A minimum of 4 years hands-on experience as a software developer in an enterprise organization working on complex custom developed applications
  Desired: working experience in agile software development
   
  SAP Data Services:
  Experience with instalation and setup of SAP IPS/DS (BODS)
  Design and development of ETL flows using SAP DS + Designer
   
  SAP Business Objects:
  Experience with instalation and setup of SAP BO
  Design and development of BO reports
   
  DBT:
  Developing, maintaining, and optimizing data transformation workflows using DBT, ensuring data accuracy
   
  
  
   

Job Description

We are looking for a Lead Java Developer with at least 5-6 years of commercial experience in development of Java enterprise applications.

Important to have:
• Java 8+ (core, lambdas, stream, collections, concurrency);
• Good OOP (SOLID principles);
• Experience with Spring Boot;
• Understanding of multithreading, concurrency issues, asynchronous vs parallel execution;
• Understanding of asynchronous programming, blocking vs nonblocking execution;
• Strong understanding of Microservices, API testing, working with Postman;
• Hands-on experience of working with REST;
• Experience with AWS services would be highly beneficial (Lambda, S3, SQS, SNS, DynamoDB, Aurora);
• Troubleshooting skills (application monitoring, debugging, profiling);
• Git;
• Strong English for daily communication with client's experts and team members located across the Globe.
• Experience with mentoring and/or leading team

Good to have:
• Experience with GitLab;
• Experience with ProjectReactor, RxJava or other Java reactive libraries;
• Experience with performance testing (JMeter);
• Knowledge of modern security mechanisms and authentication types is an advantage
• Experience working with Scrum, Scrumban, Agile methodology;

Ability to work from Krakow office at least 50% of the time.
 

Job Responsibilities

• Extending the current microservices and creating new services for an existing solution;
• Preparing the technical documentation;
• Participating in client meetings to understand business and user requirements and estimate tasks;
• Collaborating closely with other engineers, product owners and testers to identify and solve challenging problems;
• Taking part in defect investigation, bug fixing,and  troubleshooting;
• Leading the Development team (6-7 members) in Krakow location, supporting an Architect from the client side.
 

Department/Project Description

Our client is a well-known brand in the construction domain. They have offices all around the world and a great technical team. You'll become a part of the existing team of 15 developers working on the RESTful microservices and will collaborate with Product Owners, Business Analysts and other team members.

Backend Web Developer Job Requirements

Position: Backend Java Developer

Location: Remote (Europe)

Employment Type: Full-Time or Part-Time

Experience Level: Mid to Senior (3+ years)

Key Responsibilities

1. Design, develop, and maintain scalable and secure backend services using Java 8+

2. Implement microservice and vertical slice architectural patterns to ensure modular, maintainable solutions

3. Integrate asynchronous messaging solutions (e.g., RabbitMQ) for efficient communication between services

4. Work with PostgreSQL for database design, queries, and performance optimization

5. Leverage Spring or Quarkus frameworks for building modern Java backend applications

6. Collaborate in a team environment using Git for version control and code reviews

7. Adhere to Open API specification guidelines and best practices

Required Qualifications

1. 3+ years of professional experience in backend development with Java 8 or newer

2. Strong understanding of microservices and vertical slice architecture

3. Proficiency with JPA (Hibernate) and PostgreSQL

4. Hands-on experience with RabbitMQ or similar asynchronous messaging tools

5. Familiarity with Redis for caching and performance optimization

6. Basic competency in Git (branching, merging, pull requests)

Preferred / Additional Skills

1. GraphQL basics for building flexible and efficient data APIs

2. Comfort with Open API specification and generating standardized documentation

3. Strong debugging, optimization, and troubleshooting skills in distributed systems

4. Experience with CI/CD pipelines and containerized environments (Docker, Kubernetes)

What We Offer

- Fully remote role, with team members based in Europe

- Competitive salary and comprehensive benefits package

- Opportunities for professional development, learning, and growth

- Collaborative, supportive, and flexible work environment

OTAKOYI is looking for a skilled and motivated Senior Java Back-end Developer to join our client’s team. If you're driven by solving complex problems, thrive on technical challenges, and value continuous growth — this opportunity is for you.

About the Project
Become part of an innovative AI-powered Sales and Marketing application initiative designed to automate and enhance business workflows. The project focuses on deep integration with both internal and external APIs and involves the migration from a monolithic architecture to a robust microservices-based solution.

We are looking for someone who brings not only strong technical expertise but also a creative and innovative mindset in approaching challenges and building solutions.
In our team, working with AI tools is a must.

You should feel comfortable integrating tools like:

• Cursor — an AI-native IDE that helps streamline code writing, refactoring, and debugging;
• Claude, ChatGPT, Bolt AI — for technical research, idea validation, documentation, and even architecture design;
• GitHub Copilot — for in-line code suggestions, testing support, and faster prototyping.

We seek someone who not only uses AI in daily development processes but thinks with AI, treating it as a partner in creating scalable, modern software systems.

Required Skills

• Proficiency in Java (17+) for back-end development, with solid hands-on experience using Spring Boot.
• Practical experience with Docker and containerized application development.
• Familiarity with Microsoft Azure cloud services.
• Strong skills in designing and consuming RESTful APIs.
• Understanding of microservices architecture and related design patterns.
• Experience working with on-premise and cloud-based deployment environments.
• Knowledge of secure coding practices and back-end security standards.
• Familiarity with strategies for scalability and performance optimization in backend services.
• Experience with monitoring tools such as Prometheus, Grafana, and the ELK stack.
• Proficiency in CI/CD pipelines using tools like GitHub Actions, GitLab CI, or equivalents.
• Strong working knowledge of version control systems, particularly Git.
• Expertise in both relational databases (e.g., PostgreSQL) and NoSQL databases (e.g., MongoDB).
• A creative and innovative mindset in approaching challenges and solutions.
• Comfortable working with AI tools in daily development processes.

• Advanced English proficiency (spoken and written) in excellent communication and collaboration skills.

   

Preferred Skills

• Working knowledge of Kotlin, particularly in back-end contexts

   

Responsibilities:

• Maintain and continuously improve existing applications.
• Design and implement new features and enhancements.
• Refactor and decompose monolithic modules into microservices.
• Work collaboratively with team members and cross-functional teams.
• Develop new integrations with both internal and external systems.

Recruitment process

1. Pre-screening Interview with Recruiter (up to 45 minutes)

2. Tech Interview (up to 1,5 hour)

    

What do we offer?

We offer the opportunity to be part of the ambitious team and an experience driven company and to achieve rapid and comprehensive career growth. Do you think that’s all that we can offer? Just have a look at out benefit and bonuses below:

💰Paid vacations and sick leaves;

💸Fair remuneration based on your self-development results;

📢Referral program for candidate recommendation;

🤱Loyal maternity leave policy;

📝Accountant support and tax coverage;

📑Courses of English with the professional teacher;

📚Educational training within the company and outside;

💺Ability to combine remote work and office;

🎉Regular party and team buildings and different funny activities.

We are the creators of a new fintech era!
Our mission is to revolutionize the world by making blockchain technology accessible to everyone in everyday life. WhiteBIT is a global team of more than 1,200 professionals united by a shared vision of shaping the Web3 future.
We are building our own blockchain ecosystem, ensuring maximum transparency and security for over 8 million users worldwide. Our cutting-edge solutions, rapid adaptation to market challenges, and technological excellence set us apart from traditional companies.
Our official partners include the National Football Team of Ukraine, FC Barcelona, Lifecell, FACEIT, and VISA.


The future of Web3 starts with you: join us as a Java Quantitative Developer!

Requirements

Core Technical Skills:
— Strong Java programming skills (Core Java, Multithreading, Asynchronous Programming).
— Solid understanding of algorithms and data structures, with a focus on performance optimization.
— Networking and protocols knowledge, including client-server communication and low-latency optimizations, WebSockets.
— Experience with databases (MySQL, MongoDB) for handling large-scale financial data.
— Strong understanding of operating systems, networks, and performance tuning.
— Experience with distributed systems and microservices architecture.
— Familiarity with high-performance computing (HPC) and large-scale model training is a plus.
— C++ knowledge is a strong plus, particularly for performance optimization and understanding low-level system behavior.
Quantitative & Trading Systems Knowledge:
— Experience in building algorithmic trading systems or financial applications.
— Understanding of market microstructure and trading products (spot, futures, swaps).
— Strong ability to reason through quantitative problems and collaborate with researchers to implement models.
— Familiarity with low-latency, high-frequency trading (HFT) systems is a plus.
Problem-Solving & Analytical Skills:
— Strong analytical and problem-solving skills, with a commitment to testing and quality assurance.
— Track record of independently solving complex technical challenges with real industry impact.
— Strong ability to debug, profile, and optimize performance in production systems.
— Experience with automated testing, continuous integration, and deployment processes.
Education & Experience:
Bachelor’s or Master’s degree in Computer Science, Computer Engineering, or a related STEM field.
3+ years of experience in Java development, ideally within financial markets or algorithmic trading.
Hands-on experience in system architecture design, ensuring scalability, reliability, and low latency.
Mindset & Soft Skills:
— Passion for technology, problem-solving, and continuous learning.
— Intellectual curiosity and a strong drive to grow within the quantitative finance industry.
— Team player, with strong communication skills and a collaborative attitude.
— Reliable and predictable availability to ensure smooth operation of production trading systems.

Responsibilities

As a Quantitative Developer, you will be a key part of a dynamic team focused on developing and maintaining our Algorithmic Trading System. Working closely with Risk managers, you will build and optimize scalable, high-performance trading applications and infrastructure.

Key Responsibilities:
— Design and implement innovative solutions for algorithmic trading strategies.
— Develop and optimize Java functionality for trading systems, ensuring low latency, high availability, and scalability.
— Work on microstructure research, developing tools for market data analysis and feature engineering.
— Contribute to portfolio optimization, building systems for advanced portfolio management strategies.
— Build an risk management platform to enhance trading operations and risk control.
— Engage in full-cycle development, including research, coding, testing, and production deployment.
— Optimize the performance of trading architecture to maximize execution efficiency.
— Maintain and improve data pipelines and system infrastructure.

Work conditions

Immerse yourself in Crypto & Web3:
— Master cutting-edge technologies and become an expert in the most innovative industry.
Work with the Fintech of the Future:
— Develop your skills in digital finance and shape the global market.
Take Your Professionalism to the Next Level:
— Gain unique experience and be part of global transformations.
Drive Innovations:
— Influence the industry and contribute to groundbreaking solutions.
Join a Strong Team:
— Collaborate with top experts worldwide and grow alongside the best.
Work-Life Balance & Well-being:
— Modern equipment.
— Comfortable working conditions, and an inspiring environment to help you thrive.
— 30 calendar days of paid leave.
— Additional days off for national holidays.
— Health insurance.

Job Description

- Strong foundation in Computer Science fundamentals: Deep understanding of algorithms, data structures, and object-oriented programming (OOP) principles.
- Expertise in Core Java: Proficient in modern Core Java versions (ideally Java 17+) with a strong grasp of concurrent programming, garbage collection, and performance tuning.
- Extensive Microservices experience: Hands-on experience designing, developing, and deploying microservices using the Spring Boot framework is highly preferred. Experience with other relevant frameworks is a plus.
- Cloud-Native Development on AWS: Proven experience with core AWS services relevant to microservices and data processing, including but not limited to:
Serverless (AWS Lambda, AWS Step Functions)
Storage (S3)
Messaging & Queuing (SQS, SNS)
Compute (EC2)
Databases (DynamoDB)
- Cloud Infrastructure and Networking: Solid understanding of networking fundamentals, virtual networks, and cloud-specific networking concepts (e.g., VPCs, security groups). Ability to apply best practices for security, scalability, and cost optimization in a cloud environment.
- API Design and Implementation: Experience designing and implementing robust, well-documented RESTful APIs using formats like JSON.
- Database Experience: Experience with both NoSQL (DynamoDB) and relational databases, including schema design, querying, and optimization.
- DevOps and CI/CD: Familiarity with DevOps principles and experience working with CI/CD pipelines (e.g., Jenkins, GitLab CI).
- Containerization and Orchestration: Understanding and practical experience with Docker and container orchestration platforms like Kubernetes is a strong advantage.
- Linux Environment Proficiency: Comfortable working in a Linux environment for development, deployment, and troubleshooting.
Agile Methodologies: Experience working in an Agile/Scrum development process.
- Monitoring and Logging: Experience with monitoring tools and logging frameworks (e.g., Logstash, ELK stack, CloudWatch) for analyzing system behavior and troubleshooting.
- Communication and Collaboration: Excellent verbal and written communication skills with the ability to effectively interact1 with technical and non-technical2 stakeholders. 

Job Responsibilities

Design, develop, and implement high-quality, scalable, and secure platform services and components using Java and Spring Boot.
Collaborate with architects and other engineering teams to define technical designs and specifications.
Write and maintain unit, integration, and functional tests to ensure code quality and application reliability.
Participate in code reviews to maintain code standards and share knowledge.
Investigate and resolve defects and production issues in a timely manner.
Support the operation and monitoring of services in production environments.
Contribute to the evolution of the platform architecture and technology stack.
Work closely with project management and other stakeholders throughout the software development lifecycle.
Potentially contribute to Logstash configurations or other monitoring/logging setup.
Follow established design, coding, and security standards.

Department/Project Description

We are seeking a highly skilled and motivated Java Engineer to join our team and contribute to the development of a critical Secure Element (SE) Remote Management solution for a leading telecommunications provider. You will play a key role in designing, building, and maintaining scalable, secure, and performant platform services.

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 establishing an R&D centre in Kyiv, and are looking for top talents to join our team.

TECHNOLOGY STACK
Microservice architecture, Java 21, Spring Boot 3, Kafka, Google Cloud, Kubernetes

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, unlimited sick leaves, paid days on special occasions)
• Health insurance with the broker which is available from the first month of cooperation
• Public holidays
• Life insurance with the broker which is available from the first month of cooperation
• Be-weekly English courses with native speakers based on your level
• Sports activities reimbursementHappy hours on Fridays
• Corporate entertainments
• Ukraine-based educational programs
• Modern technical equipment
• Gig contract support

Seeking a Backend Developer (Games) to build and maintain server-side systems, game engines, and APIs for casino games. Requires strong Java skills and a passion for iGaming.

What You Will Do:

We are seeking a passionate and experienced Backend Developer, responsible for building the Server-side foundations of new and exciting Casino gaming projects. An ideal candidate will stay excited to take challenges, contribute towards building new verticals and depict strong entrepreneurial skills. Primary responsibilities of this position include building, maintaining, and optimising our Casino Game Server, Game Engines, Game APIs, and supporting tools.

Summary of Responsibilities:

• Designing, developing, and maintaining the back-end functionality, which involves high-volume transaction systems;
• Developing game engines and tools for the Casino Remote Game Server (RGS) from complex math models shaped into programming logic and data structures;
• Developing, enhancing and maintaining existing gaming API’s, game engines and providing Back-End development support for Front-End Developers;
• Experience in all aspects of application development lifecycle (analysis and design to implementation and support);
• Working closely with different interfaces such as Game Producers, Mathematicians, Statisticians, Front-end game developers, and QA;
• Coordinating the quality assurance, certification, and translation processes of the games;
• Researching, playing, and studying casino games to stay up-to-date with market trends and competition;
• Performing other tasks as required.

What you'll need to have:

• Strong track record of developing and maintaining Casino Game Engines with the successful production of impactful slot games;
• Excellent knowledge of Java;
• Experience with client-server integrations, multithreading and micro-service design;
• Experience of working with MongoDB, relational and/or NoSQL databases;
• Solid knowledge of Object-Oriented Programming, MVC and other design principles;
• Experience working with project tracking tools such as JIRA;
• Familiarity with Git and feature branching approach;
• Highly organised, experienced in running multiple projects and delivering to tight deadlines;
• Passionate about whatever you do and want to make a difference in the iGaming Industry;
• Knowledge or experience with various game development pipelines & methodologies;
• Knowledge about games and/or the casino industry, including the current market landscape;
• Experience working with multiple disciplines, including artists, mathematicians, software developers, etc., in creating games or products;
• Strong written and verbal communication skills.

Other Duties and Responsibilities:

• Participation in team brainstorming;
• Contributing to the review of other developers’ games and code;
• Contributing to the evolution of the team’s processes and best practices;
• Leadership attitude and not afraid to get your hands dirty;
• Excellent teamwork skills and ability to adapt.

Qualifications:

• Minimum 2-5 years of experience in related domains;
• Bachelor’s degree or higher in computer science.

The company offers:

• Flexible working hours;
• Free to work from any location;
• Great work-life balance;
• Company culture of transparency & openness;
• Further opportunities for personal development and influence on product direction.

If you find this opportunity right for you, don't hesitate to apply or get in touch with us if you have any questions!

We are hiring a Senior Backend Java Engineer for a fast-paced InsurTech project developed for a major U.S.-based client in the insurance sector. The project aims to modernize and expand an enterprise platform used for risk analysis, policy management, and real-time claims processing.

About the Project:

You’ll join a cross-functional engineering team building and optimizing a distributed, event-driven backend system designed to handle complex business logic at scale. The system leverages Java with Spring Boot, integrates with Kafka for asynchronous communication, and applies Domain-Driven Design (DDD) principles to model intricate insurance workflows. You’ll work with both legacy and new microservices, contributing to a large-scale modernization initiative in close collaboration with client-side stakeholders.

Key Responsibilities:

• Design and implement scalable backend services using Java and Spring Boot

• Refactor legacy components to align with modern design and coding standards

• Model complex business domains following DDD best practices

• Contribute to architectural decisions and propose technical improvements

• Write reliable tests with JUnit and Cucumber

• Collaborate closely with QA and product teams to ensure smooth delivery

• Participate in daily standups, sprint planning, and other agile ceremonies

Requirements:

• 6+ years of backend software development experience

• Strong expertise in Java and Spring Boot

• Solid understanding of event-driven architecture, preferably with Kafka

• Hands-on experience with testing frameworks like JUnit and Cucumber

• Practical knowledge of Domain-Driven Design principles

• Good communicator with at least B2-level English

• Ability to work independently in a remote, distributed environment

• Bonus: prior experience in the insurance domain or with large-scale enterprise systems

This is a 3–6 month full-time remote engagement starting in June 2025, with potential for extension based on project needs. You’ll work flexible hours with overlapping availability for client calls, alongside a supportive engineering team dedicated to continuous learning, quality delivery, and mutual growth.

📍Please note that the position requires working only from the office. The office is located at 58 Yaroslavska Street, Astarta Business Center, Kyiv. 

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 establishing an R&D center in Kyiv, and are looking for top talents to join our team.

RESPONSIBILITIES

• Development of new business initiatives, extension of existing ones
• Taking active part in improvements and optimizations to the systems
• Resolve technical problems, critical thinking on development approach

• Be part of cross-functional team with end-to-end responsibility for end result

   

REQUIREMENTS

• 1+ year of commercial programming experience using Java
• Strong knowledge of Java Core and OOP approach
• Basic knowledge of Spring Framework
• SQL knowledge
• Knowledge of RESTful APIs
• Proactivity and problem-solving skills
• Full-time office job

• Good written and spoken English

   

NICE TO HAVES

• Understanding of microservice architecture

• Experience with Agile methodology

   

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 insurance with the broker which is available from the first month of cooperation
• Life insurance with the broker which is available from the first month of cooperation
• Modern technical equipment
• English courses with native speakers
• Ukraine-based educational programs
• Sports activities reimbursement
• Corporate entertainments
• Happy hours on Fridays
• Gig contract support

The company, an innovative blockchain technology company, is looking for Principal EVM Software Engineer to work remotely.
 

This company is a technology company that uses a unique, patented consensus algorithm for the fully open-source platform. 

The platform's network services include smart contracts based on Solidity, as well as a native tokenization and consensus service used to create decentralized applications.

This cutting-edge technology is recognized as an alternative to traditional blockchain solutions due to its superior speed and scalability.

The platform's public network is governed by industry-leading organizations, spanning 11 sectors and 14 regions who oversee the development and direction of the decentralized platform.
 

The company's management board includes IBM, Boeing, Google, Deutsche Telekom, LG, and others.
 

You will be contributing to the performance and optimization of the native services (Java) and the web3 services (JS/TS) that process transaction bytes to transform the network node states and expose network block, transaction, and account data.
 

The company offers unlimited vacation and sick leave, stock options, paid work-related education/certifications, and workplace equipment.

Requirements: deep software development experience with Java, experience with JavaScript, people management and blockchain experience.

Practical experience with EVM-based blockchain wiil be a plus.