Jobs Java

About Us: InnovatelU is a dynamic tech company delivering cutting-edge solutions. We're looking for a passionate Java Developer to join our team. If you have a solid Java foundation, are eager to grow, and learn quickly, we want to hear from you! 

Requirements: 
- Strong knowledge of Java 
- Knowledge of Spring (Spring Core, Spring AOP, Spring MVC, Spring Security, Spring Boot) 
- Familiarity with REST APIs, web services 
- Proficiency in version control tools (Git) 
- Experience with build tools like Maven and Gradle 
- Experience with relational databases (PostgreSQL) 
- Expertise in containerization (Docker) 

- Experience in unit and integration testing 
- Strong communication skills and teamwork ability 
- English level: Intermediate or higher 

Will Be a Plus: 

- Solid understanding of design patterns 

- Experience with NoSQL databases like MongoDB and Redis 

- Familiarity with messaging systems like Kafka and RabbitMQ 

- Experience with microservices architecture 

Responsibilities: 

- Collaborate with senior developers and project managers 

- Assist in designing, coding, and testing applications 

- Write well-designed, efficient, and testable code 

- Participate in code reviews 

- Debug and resolve technical issues 

- Contribute to application documentation 

Interview Stages: 

1. Test Task: 1 hour 

2. HR Interview: 30 minutes 

3. Technical Interview: 1 hour 

We Offer: 

- Full Remote 

- Constant support and mentoring 

- Paid 5 working days of sickness per a year; 

- Paid all official Ukrainian holidays; 

- 18 working days of vacation per a year; 

- Opportunity for professional growth and career development 

If this sounds interesting to you, let's talk!

Project Description:

The project is focused on improving the security, release reliability, maintainability, and operational resilience of business-critical banking applications.

Forward Deployed Engineers will conduct targeted, hands-on engagements with development teams that are facing challenges with vulnerability remediation, automated testing, legacy technology, production stability, or achieving a safe and rapid release cadence.

The role combines senior software engineering, DevOps, SRE, test automation, application security, and legacy modernization. Approximately 70% of the work involves hands-on coding and configuration.

The technical scope includes building effective automated test suites, remediating security vulnerabilities, performing dependency and reachability analysis, upgrading Java and NPM runtimes, modernizing Spring and legacy middleware applications, improving CI/CD pipelines, containerizing applications, automating deployments, and introducing standard observability and resilience patterns.

The Expert FDE is expected to lead complex engagements, work directly with development and client stakeholders, define the technical remediation approach, implement critical changes personally, and enable client teams to maintain the improved engineering practices.

Responsibilities:

- Lead targeted technical engagements addressing security, testing, release, resilience, and legacy technology challenges with development teams.
- Assess application code, dependencies, runtime environment, test coverage, deployment architecture, CI/CD pipelines, observability, and operational risks.
- Write, debug, review, and enhance production-quality code and configuration throughout engagements.
- Define and implement practical modernization and remediation plans with clear priorities, dependencies, risks, and measurable outcomes.
- Develop or improve unit, integration, component, contract, and deployment smoke tests using Test-Driven Development practices.
- Select appropriate automation-testing approaches per application and drive implementation, including the use of AI coding assistance.
- Source suitable test data and implement secure data masking for lower environments.
- Conduct vulnerability triage, root-cause and dependency reachability analyses, remediation prioritization, secure code changes, and regression testing.
- Upgrade Java, JVM, NPM, Spring, open-source libraries, internal dependencies, installed software, base images, and operating systems to supported versions.
- Establish sustainable dependency-management processes with continuous library updates using Renovate or equivalent tools.
- Modernize legacy applications and middleware stacks, including those deployed on WebSphere or WebLogic.
- Containerize applications using Docker and support deployment to OpenShift.
- Improve source control, branch management, pull-request, and code-review practices.
- Design, implement, and optimize CI/CD pipelines to ensure safe, repeatable, automated, and easy releases.
- Automate database changes using Liquibase or equivalent migration tools.
- Automate installed software and environment changes using Ansible or equivalent configuration management tools.
- Implement secure coding patterns, secrets management, authentication, authorization, and least-privilege controls.
- Introduce standard observability patterns, including structured logging, application metrics, tracing, dashboards, alerting, and actionable health checks.
- Enhance exception handling, operational diagnostics, rollback procedures, and production-validation controls.
- Design or improve resilient deployment architectures, including hot-hot cross-datacenter deployments where required.
- Lead technical workshops and effectively communicate technical decisions, risks, blockers, trade-offs, and progress to engineering, security, architecture, operations, project management, and stakeholders.
- Provide technical leadership through code reviews, coaching, reusable standards, documentation, and knowledge transfer to development teams.
- Take ownership from initial assessment through implementation, production deployment, stabilization, and handover.

Mandatory Skills Description:

The role demands extensive hands-on software engineering experience, with a focus on developing and maintaining production applications. Candidates must actively write and configure code, not merely oversee architecture or management tasks. Expertise in Java and JVM-based development is essential, while strong TypeScript skills are valued for Node.js-centric projects. Proficiency with the Spring ecosystem and modernizing Java enterprise applications is required. The candidate should demonstrate recent personal involvement in coding, debugging, and reviewing production code.

Hard skills include practical experience in Test-Driven Development across multiple testing frameworks, with a solid understanding of various testing types such as unit, integration, and regression tests. The role involves creating automated test suites integrated within CI/CD pipelines, along with designing release automation and quality gates. Strong knowledge of secure coding practices, vulnerability remediation, and dependency risk management is necessary, including the ability to analyze application impacts before applying security fixes. Experience upgrading runtimes, frameworks, libraries, container platforms like Docker or OpenShift, and managing Linux environments—preferably Red Hat Enterprise Linux—is also important. Familiarity with build tools such as Maven, Gradle, or npm, advanced Git workflows, and comprehensive production-debugging techniques is expected. Candidates should understand application observability, exception handling, and production readiness, as well as fundamental distributed and critical system engineering principles.

Soft skills focus on demonstrated ownership of complex technical work through all stages, from design to production handover. Strong client-facing communication is essential, including leading technical discussions, constructively challenging unsafe practices, and explaining trade-offs to diverse stakeholders. The ability to coach engineers and implement sustainable engineering standards without excessive customization is critical. Responsible and active use of AI coding tools to enhance engineering, testing, and delivery outcomes is also expected.

- Hard skills:
  - Java/JVM and optionally TypeScript development with Spring ecosystem expertise
  - Test-Driven Development and automated testing within CI/CD frameworks
  - Secure coding, vulnerability management, and dependency risk analysis
  - Runtime, framework, library upgrades, and container platform management
  - Linux system administration, build tools, Git workflows, and production debugging
  - Application observability and distributed system engineering principles

- Soft skills:
  - End-to-end ownership of technical projects
  - Effective client communication and technical leadership
  - Coaching and sustainable standards implementation
  - Proficient use of AI-assisted development tools

Nice-to-Have Skills Description:

- Experience modernizing or migrating applications hosted on IBM WebSphere or Oracle WebLogic, demonstrating familiarity with these platforms.
- Experience with major-version upgrades and migration from older versions of Spring or Spring Boot, indicating proficiency in framework transitions.
- Experience configuring continuous dependency-update tools such as Renovate or Dependabot, showing capability in automating dependency management.
- Experience with dependency reachability analysis, Software Composition Analysis, CVE assessment, and remediation of transitive dependencies, reflecting knowledge of software security and compliance.
- Experience automating database changes using Liquibase or Flyway, indicating skills in database migration automation.
- Experience using Ansible or equivalent configuration-management and deployment-automation tools, demonstrating proficiency in infrastructure automation.
- Strong experience in TypeScript, Node.js, and the npm ecosystem, highlighting development expertise in these technologies.
- Experience with Kubernetes in addition to OpenShift, showing understanding of container orchestration platforms.
- Experience designing hot-hot, active-active, multi-region, or cross-datacenter deployment architectures, denoting knowledge of high-availability systems.
- Experience with resilience testing, disaster recovery, controlled failover, and production-recovery exercises, highlighting skills in system reliability and continuity planning.
- Experience with enterprise observability tools such as Splunk, ELK, Grafana, Prometheus, OpenTelemetry, AppDynamics, or Dynatrace, reflecting proficiency in monitoring and diagnostics.
- Experience modernizing monolithic or legacy enterprise applications into maintain

Languages:

English: C1 Advanced

The Mission

Wallee Group is a leader in advanced payment solutions, dedicated to providing robust, scalable, and secure systems across multiple domains. We enhance customer experiences through innovative payment and finance technology that empowers businesses to grow efficiently. With operations spanning several countries, we thrive on collaboration and agility, utilizing the Scrum framework to drive our international teams. At Wallee, we stay at the forefront of market trends, continuously innovating to deliver premier services to our global customers.

The Role

To achieve our mission of providing the market's best payment experience, Wallee is seeking experienced and versatile java software engineers. As disruptors in the payment space, we build industry-leading systems that demand the highest standards of security and reliability. We are constantly pushing our solutions into new territories, and we are looking for engineers who thrive in a fast-paced, agile environment to help us redefine the future of finance.

Tasks

Your Impact

• Architect Scalability: Design and develop highly resilient back-end systems using Java, ensuring our infrastructure handles global scale with ease.
• Feature Innovation: Own the end-to-end lifecycle of new features, from initial implementation to refined bug fixing and performance tuning.
• Collaborative Engineering: Work closely with product managers, UX designers, and QA to translate complex business needs into elegant technical solutions.
• Code Excellence: Drive quality through automated testing, rigorous code reviews, and the creation of clear, maintainable technical documentation.
• Stay Ahead: Continuously research and evaluate emerging technologies and methodologies to keep Wallee at the cutting edge of the fintech industry.

Requirements

What You Bring to the Table

• Technical Depth: Advanced proficiency in Java and core frameworks such as Spring, Spring Boot, and Hibernate.
• Systems Thinking: Proven experience building distributed systems and scalable, high-availability solutions.
• Data Mastery: Strong proficiency in SQL and experience managing complex data structures.
• Modern DevOps: Hands-on experience with CI/CD pipelines (Jenkins/GitLab CI) and containerization (Docker, AWS ECS).
• Agile Mindset: A degree in Computer Science (or equivalent experience) and a track record of thriving in fast-paced, Agile environments.

• Bonus Points: Experience with JavaScript, Apache Camel, or BPM engines.

   

  Benefits:

• You are part of an agile, young international team and shape our products sustainably with your ideas.
• You will play a decisive role in designing products in an omni channel payment start-up and work with leading companies in the financial industry on international projects.
• We offer flexible structures and flat hierarchies.
• Cooperation with motivated colleagues and numerous personal development opportunities.

About the project

Our client is a fintech company building a new digital banking and payments product from scratch. The platform will cover card and payment processing, integrations with banks and payment providers, and core financial services for end customers.

The product is at an early stage: architecture, team and roadmap are being shaped now, and the scope will be refined together with the team. You will join a mixed team of client and NerdySoft engineers. AI-assisted development is part of everyday engineering.

What you will do

• Design, build and ship backend services for a new event-driven platform
• Build reliable integrations with banking and payment providers - idempotent, traceable and easy to reconcile
• Write clean, well-tested code: unit, integration and contract tests
• Take part in technical design and architecture discussions together with the Tech Lead
• Review code and share knowledge within the team
• Work with AI coding assistants and AI agents in daily development: delegate tasks to agents, review the code they produce and keep it to the team's standards for review and testing
• Follow secure coding practices and security requirements, including PCI DSS
• Support your features in production: monitoring, troubleshooting, fixes
• Communicate directly with the client's engineers and stakeholders

What you bring

• 3+ years of commercial backend development with Java (17+) and Spring Boot
• Production experience with asynchronous, event-driven systems (Kafka, RabbitMQ, AWS SNS/SQS or similar)
• Good knowledge of concurrency and transactions: ACID, isolation levels, locking
• Relational databases (PostgreSQL preferred), JPA / Hibernate, SQL query optimisation
• REST API design and integration with external services: retries, timeouts, idempotency, error handling
• Testing as part of the definition of done: JUnit, Mockito, Testcontainers
• Docker, CI/CD and hands-on AWS (or another major cloud)
• Daily use of AI coding assistants (Claude Code, Cursor, GitHub Copilot or similar): you can show how they speed you up and how you check their output
• English B2+ (Upper-Intermediate or higher): you will communicate directly with the client's team

Nice to have

• FinTech background: banking, payments or lending products
• Card issuing or processing: ISO 8583, authorisation, clearing and settlement, reversals
• Visa or Mastercard integrations
• PCI DSS in practice; secure public APIs (authentication, authorization)
• Ledger systems and double-entry accounting
• DDD, Clean or Hexagonal architecture
• Kotlin, Kubernetes, Terraform

What we offer

• Comfortable workplace and modern office facilities
• Flexible working hours with no overtime and the ability to work remotely
• 50% compensation for certifications, conferences, training
• 50% compensation for English courses
• 18 working days of paid annual leave
• Paid sick leave
• Medical insurance and sports compensation

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

About the project

Our client is a fintech company building a new digital banking and payments product from scratch. The platform will cover card and payment processing, integrations with banks and payment providers, and core financial services for end customers.

The product is at an early stage: architecture, team and roadmap are being shaped now, and the scope will be refined together with the team. You will join a mixed team of client and NerdySoft engineers and work closely with the client's technical leadership. AI-assisted development is part of everyday engineering.

What you will do

• Lead and mentor a team of 3–6 engineers while staying hands-on: at least half of your time is production code
• Shape the architecture of a new event-driven backend and own technical decisions in your area
• Own code quality: code reviews, testing standards, secure coding practices
• Build reliable integrations with banking and payment providers — idempotent, traceable and easy to reconcile
• Make sure the solution meets security and regulatory requirements, including PCI DSS
• Create and onboard AI powered SDLC process and help the team adopt them with clear rules for review and testing
• Deliver features end to end, from technical design to production support
• Break down scope, estimate and plan delivery together with Product Manager
• Be the main technical point of contact for client stakeholders

What you bring

• 7+ years of commercial backend development with Java (17+) and Spring Boot
• 2+ years as a Tech Lead or Team Lead of 3+ engineers, while still writing code
• FinTech background is mandatory: commercial experience on banking, payments or lending products
• Production experience with asynchronous, event-driven systems (Kafka, RabbitMQ, AWS SNS/SQS or similar)
• Solid knowledge of concurrency and transactions: ACID, isolation levels, optimistic and pessimistic locking
• Strong relational database skills (PostgreSQL preferred), JPA / Hibernate
• Experience integrating external APIs and providers: retries, timeouts, idempotency, consistent error handling across layers
• Designing secure public APIs for external integrations: authentication, authorization, platform boundaries
• Architecture know-how: DDD, Clean or Hexagonal architecture; you can design a system from scratch and defend the decisions
• Hands-on AWS (or another major cloud), Docker and CI/CD, including API versioning and database migrations
• Strong testing culture: unit, integration and contract tests (JUnit, Mockito, Testcontainers)
• Daily use of AI coding assistants (Claude Code, Cursor, GitHub Copilot or similar): you can show how they speed you up and how you check their output
• English B2+ (Upper-Intermediate or higher): you will lead technical discussions with the client

Nice to have

• Card issuing or processing: ISO 8583, authorisation, clearing and settlement, reversals, chargebacks
• Visa or Mastercard integrations and scheme certification
• PCI DSS in practice; HSM, key management, tokenisation for digital wallets
• Ledger systems and double-entry accounting
• Bank transfer and direct debit integrations (SEPA or other domestic payment rails)
• Kotlin, Kubernetes, Terraform; schema evolution with Avro or Protobuf
• Work in a regulated financial environment
• Threat modelling

What we offer

• Comfortable workplace and modern office facilities
• Flexible working hours with no overtime and the ability to work remotely
• 50% compensation for certifications, conferences, training
• 50% compensation for English courses
• 18 working days of paid annual leave
• Paid sick leave
• Medical insurance and sports compensation

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

Phoenix Games is an innovative technology company building next-generation iGaming and Web3 products for a global audience. We create scalable gaming platforms powered by AI, blockchain, cloud technologies, and modern backend architectures.

We're expanding our engineering team and are looking for Middle and Senior Java Developers who are passionate about building high-performance backend systems and solving complex technical challenges in a fast-growing product environment.

What You'll Do

• Develop and maintain scalable backend services using Java and Spring Boot.
• Design and implement RESTful APIs and microservices.
• Build reliable, secure, and high-performance applications.
• Collaborate with Front-end Developers, QA Engineers, Product Managers, and DevOps teams.
• Optimize application performance and database queries.
• Participate in architecture discussions and technical planning.
• Write clean, maintainable, and well-tested code.
• Participate in code reviews and continuously improve engineering practices.
• Contribute to CI/CD processes and cloud-based deployments.

Tech Stack

• Java 17/21
• Spring Boot
• Spring Cloud
• Hibernate / JPA
• PostgreSQL / MySQL
• Redis
• Kafka / RabbitMQ
• Docker
• Kubernetes
• AWS
• Git
• GitHub Actions
• REST APIs
• Microservices

Requirements

Middle

• 3+ years of commercial Java development experience.
• Strong knowledge of Java and Spring Boot.
• Experience building REST APIs.
• Experience with SQL databases (PostgreSQL or MySQL).
• Understanding of OOP, design patterns, and clean code principles.
• Experience with Git.
• Upper-Intermediate English or higher.

Senior

• 5+ years of commercial Java development experience.
• Strong experience with Spring Boot and microservices architecture.
• Experience designing scalable and high-load backend systems.
• Strong knowledge of PostgreSQL or MySQL.
• Experience with Docker and Kubernetes.
• Experience with cloud platforms (AWS preferred).
• Experience mentoring developers and participating in architectural decisions.
• Strong understanding of performance optimization and distributed systems.
• Upper-Intermediate English or higher.

Nice to Have

• Knowledge of Kafka, RabbitMQ, or event-driven architecture.
• Experience with Redis and caching strategies.
• Familiarity with Web3 or blockchain technologies.
• Experience with CI/CD pipelines.
• Understanding of security best practices for backend systems.

What We Offer

• Fully remote work from anywhere in Europe.
• Long-term B2B cooperation.
• Competitive salary paid in EUR or USD.
• Annual salary reviews.
• Performance-based bonus program.
• Annual company bonus.
• 25 paid vacation days.
• Paid sick leave.
• Flexible working hours.
• Home office budget.
• Laptop or equipment allowance.
• Learning & development budget for courses, certifications, books, and conferences.
• English language lessons.
• Private health insurance.
• Mental health support program.
• Sports and wellness compensation.
• Team-building activities and international company retreats.
• Opportunity to work on cutting-edge AI, Web3, and cloud-based products.
• Career growth in a fast-growing international product company with a strong engineering culture.

Why Join Phoenix Games?

At Phoenix Games, you'll work with modern technologies, contribute to products used by a global audience, and have the opportunity to grow alongside an experienced international engineering team. Whether you're an ambitious Middle Developer looking to take the next step or a Senior Engineer ready to shape technical decisions, you'll find exciting challenges and real ownership here.

On behalf of our Client from Belgium, Mobilunity is looking for a Java Developer.

Our Client is a rapidly growing HR Tech company in Belgium. The company provides Search & Selection services to connect talent with companies and offers Digital Payroll solutions that support clients working with flexible employment models.

Responsibilities:

• Contribute ideas and actively participate in the innovation and product improvement process
• Design and implement well-structured, testable, and efficient back-end code (Java, Spring)
• Build and maintain RESTful APIs and integrations for web and mobile applications
• Design, optimize, and maintain PostgreSQL databases (Aurora on AWS)
• Develop modular, reusable services and libraries with future reuse in mind
• Implement and maintain a clear, well-defined application architecture following best practices
• Communicate daily with the team to coordinate development, share progress, and resolve blockers
• Ensure code quality through unit and integration testing, code reviews, and adherence to established coding standards

Requirements:

• 5+ years of relevant experience
• Experience with AWS
• Experience with Java and Spring (Boot, Security, Core, JPA)
• Clean architecture, distributed system design and microservices architecture
• Experience with Spring Framework
• Experience working with PostgreSQL databases (preferably Amazon Aurora PostgreSQL)
• Confident level of English (at least upper-intermediate to handle all communications)

Nice to have:

• Experience with Angular
• Experience with GitHub
• Experience with Jenkins and CI/CD pipelines
• Familiarity with Atlassian tools (Jira, Confluence) for ticket management and documentation

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

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

Project — https://dripify.com

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

Requirements:

• 5+ years of hands-on Java development, with production experience in Java 21+
• Deep practical experience with Spring Boot modules
• Strong understanding of modular architectural principles and backend service decomposition
• Solid knowledge of Java concurrency and multithreaded environments
• Experience working with SQL databases (PostgreSQL preferred)
• Proficiency in RESTful API design and asynchronous messaging using SNS/SQS
• Familiarity with CI/CD pipelines and common quality gates (test coverage, static analysis, security scanning)
• Strong foundation in unit and integration testing
• Competence in Docker, Linux, and system-level debugging
• Understanding of logging and monitoring tools (e.g., ELK, Prometheus, Grafana)
• Commitment to secure development practices, including authentication, authorization, data validation, and least-privilege access
• Working knowledge of AWS services, including IAM, EC2, RDS, S3, CloudWatch, and Secrets Manager

Responsibilities:

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

Would be a plus:

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

Work conditions:

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

Hiring process:

✅ Interview with Talent Acquisition Specialist (45-60 min) - ✅ AI interview test task BETA (15-30 min) - ✅ Interview with Engineering Manager (90 min) ✅ Final interview with Head of engineering (60 min) - ✅ Reference check - ✅ Offer

Who we are:

Adaptiq is a technology hub focused on building, scaling, and supporting R&D teams for high-growth product companies across a broad range of industries.
 

About the Product:

Our client is a leading online gaming operator developing a new transactional platform for user account management. The platform is being built from scratch and will operate in a highly regulated, high-volume environment, supporting millions of concurrent users.

It will process real-time financial transactions and must provide high availability, sub-second response times, strong data integrity, security, and complete auditability. A major technical challenge is ensuring stable performance and reliability during peak events and significant traffic spikes.

The team is looking for strong engineering expertise to help architect and develop a scalable, high-performance, and resilient backend platform while meeting strict security, regulatory, and compliance standards.
 

About the Role:

As a Senior Java Engineer, you will build and design the core backend services of the PAM platform from the ground up. You will take end-to-end ownership of features, covering technical design, implementation, automated testing, production monitoring, and release.

You will collaborate closely with Principal Engineers on architecture and key technical decisions, contribute to RFCs, and deliver production-ready solutions. The role offers a high degree of autonomy and direct influence on the platform architecture, together with responsibility for reliability, performance, and correctness within a critical financial system.
 

Key Responsibilities:

• Design and develop backend services using Java 17+ and Spring Boot or a similar framework, covering wallet transactions, ledger entries, payment orchestration, bonus mechanics, and account state management.
• Build REST APIs and event-driven integrations with Kafka or similar technologies for player-facing applications, operational tools, and external partners.
• Maintain system correctness and reliability through idempotent operations, well-defined transaction boundaries, explicit failure handling, and comprehensive unit, integration, and contract testing.
• Incorporate regulatory requirements directly into the platform, including KYC/AML checks, responsible gaming controls, and audit trails.
• Ensure production readiness through metrics, structured logging, distributed tracing, alerting, and participation in on-call rotations.
• Participate in technical design discussions and RFCs, conduct code reviews, and support and mentor other engineers.
• Integrate AI-assisted development tools into the daily engineering workflow while following established platform standards for prompts and context.
• Support the live migration from the existing third-party platform, including parity testing, data validation, and cutover coordination.
   

Required Competence and Skills:

• 5+ years of backend engineering experience with strong hands-on expertise in Java 17+ and a modern framework such as Spring Boot.
• Proven experience designing, building, and operating high-integrity transactional systems in areas such as payments, wallets, billing, banking, e-commerce, or gaming.
• Strong knowledge of relational databases such as PostgreSQL, including schema design, ACID transactions, locking, and query/performance optimization.
• Experience working with event-driven architectures and messaging technologies such as Kafka, RabbitMQ, or similar, including idempotency and retry mechanisms.
• Strong automated testing practices, including unit, integration, and contract testing as part of the regular development lifecycle.
• Practical production experience with containers, CI/CD pipelines, monitoring and telemetry, as well as troubleshooting production incidents.
• Solid knowledge of multi-threading, system architecture, and fault-tolerant design patterns.
• Good written and spoken English and experience collaborating effectively across distributed, multi-time-zone teams.
   

Nice to Have:

• Experience in iGaming, sports betting, fintech, or another regulated domain with high transaction volumes.
• Hands-on exposure to Kubernetes and AWS technologies, including VPC, IAM, EKS, and auto-scaling.
• Experience building systems with compliance requirements such as KYC/AML, responsible gaming, and auditability.
• Practical experience using AI coding assistants and agentic development workflows.
• Polish and/or Spanish language skills.
   

Why Us:

We provide 20 days of paid vacation per calendar year, in addition to the official national holidays of the country where you are based.

We offer full accounting and legal support across all countries where we operate.

We follow a fully remote work model and provide a powerful workstation, as well as access to a co-working space whenever needed.

Project Description:

You will join a Regulatory Reporting Platform within a large US investment bank. The platform is responsible for collecting, processing, and transforming large volumes of data from multiple internal systems to produce regulatory reports for 240 jurisdictions worldwide. In total, the platform supports around 10,000 reports across a wide range of regulatory, compliance, financial, and risk reporting areas.
This is a large-scale, business-critical data platform operating in a highly regulated environment, where data accuracy, quality, traceability, and timely delivery are essential. The team works on building and enhancing data pipelines, implementing reporting logic, ensuring data validation and reconciliation, and supporting the generation of complex regulatory outputs.
The project is delivered by a global distributed team with colleagues located in Ukraine, Poland, and the US, offering close collaboration with engineers, analysts, and business stakeholders across multiple regions.

Responsibilities:

- Design, develop, and maintain solutions for a large-scale Regulatory Reporting Platform
- Build and enhance data processing pipelines using Java and Apache Spark
- Implement scalable logic for data ingestion, transformation, aggregation, and enrichment from multiple internal data sources
- Develop and optimize batch processing jobs to support the generation of regulatory reports across multiple jurisdictions
- Ensure high standards of data quality, validation, reconciliation, and consistency throughout the reporting lifecycle
- Translate business and regulatory requirements into robust technical solutions
- Collaborate with business analysts, QA engineers, and cross-functional teams to deliver reporting functionality
- Investigate and resolve data and application issues in development, test, and production environments
- Improve application performance, scalability, and reliability for high-volume data processing workloads
- Contribute to the design and implementation of reusable components and engineering best practices
- Participate in code reviews, testing, and release activities to ensure high-quality deliverables
- Work closely with distributed teams across Ukraine, Poland, and the US in an agile delivery model
- Support continuous improvement of the platform, including monitoring, troubleshooting, and operational stability

Mandatory Skills Description:

- 6+ years of commercial experience with Java
+ 2+ years of experience with Spark
- Experience in designing and developing scalable, high-performance backend applications
- Good knowledge of SQL and working with large datasets from multiple data sources
- Strong problem-solving skills and ability to work effectively in a global distributed team

Nice-to-Have Skills Description:

- Experience in financial services, investment banking, or regulatory reporting projects
- Familiarity with data quality, reconciliation, and control frameworks
- Experience working with large-scale enterprise data platforms
- Knowledge of cloud environments and modern data platform architectures
- Understanding of CI/CD practices and automated deployment pipelines
- Experience working in Agile / Scrum teams within a distributed global setup

Recruitment process:

1. CV Review — the project team reviews your experience and its relevance to the position.
2. Technical Interview — a technical discussion with our interviewer.
3. Project Management Interview (PMI) — a discussion about your experience, communication, and project fit.
4. Karat Interview — the first technical interview with the client.
5. Client Interview — the final interview with the client’s project team.

Project Description:

You will join a Regulatory Reporting Platform within a large US investment bank. The platform is responsible for collecting, processing, and transforming large volumes of data from multiple internal systems to produce regulatory reports for 240 jurisdictions worldwide. In total, the platform supports around 10,000 reports across a wide range of regulatory, compliance, financial, and risk reporting areas.
This is a large-scale, business-critical data platform operating in a highly regulated environment, where data accuracy, quality, traceability, and timely delivery are essential. The team works on building and enhancing data pipelines, implementing reporting logic, ensuring data validation and reconciliation, and supporting the generation of complex regulatory outputs.
The project is delivered by a global distributed team with colleagues located in Ukraine, Poland, and the US, offering close collaboration with engineers, analysts, and business stakeholders across multiple regions.

Responsibilities:

- Design, develop, and maintain solutions for a large-scale Regulatory Reporting Platform
- Build and enhance data processing pipelines using Java and Apache Spark
- Implement scalable logic for data ingestion, transformation, aggregation, and enrichment from multiple internal data sources
- Develop and optimize batch processing jobs to support the generation of regulatory reports across multiple jurisdictions
- Ensure high standards of data quality, validation, reconciliation, and consistency throughout the reporting lifecycle
- Translate business and regulatory requirements into robust technical solutions
- Collaborate with business analysts, QA engineers, and cross-functional teams to deliver reporting functionality
- Investigate and resolve data and application issues in development, test, and production environments
- Improve application performance, scalability, and reliability for high-volume data processing workloads
- Contribute to the design and implementation of reusable components and engineering best practices
- Participate in code reviews, testing, and release activities to ensure high-quality deliverables
- Work closely with distributed teams across Ukraine, Poland, and the US in an agile delivery model
- Support continuous improvement of the platform, including monitoring, troubleshooting, and operational stability

Mandatory Skills:

- 6+ years of commercial experience with Java
- Experience in designing and developing scalable, high-performance backend applications
- Good knowledge of SQL and working with large datasets from multiple data sources
- Strong problem-solving skills and ability to work effectively in a global distributed team

Nice-to-Have Skills Description:

- Spark and Hadoop knowledge
- Experience in financial services, investment banking, or regulatory reporting projects
- Familiarity with data quality, reconciliation, and control frameworks
- Experience working with large-scale enterprise data platforms
- Knowledge of cloud environments and modern data platform architectures
- Understanding of CI/CD practices and automated deployment pipelines
- Experience working in Agile / Scrum teams within a distributed global setup

Recruitment process:

1. CV Review — the project team reviews your experience and its relevance to the position.
2. Coderbyte Test — an online coding assessment.
3. Technical Interview — a technical discussion with our interviewer.
4. Project Management Interview (PMI) — a discussion about your experience, communication, and project fit.
5. Karat Interview — the first technical interview with the client.
6. Client Interview — the final interview with the client’s project team.

Required Skills:
- Strong proficiency in Java 8+, with solid hands-on experience in Spring Boot and Spring MVC.
- Experience in RESTful API design and development.
- Familiarity with SQL/NoSQL databases.
- Hands-on experience with Git, Maven/Gradle, and CI/CD pipelines.
- Experience working with API documentation tools like Swagger/OpenAPI.
- Knowledge of .NET.

Preferred Skills:
- Experience with Azure DevOps (ADO) or GitHub Actions.

Soft Skills:
- Strong analytical and problem-solving abilities.
- Excellent communication and teamwork skills.
- Ability to work independently and manage migration-specific tasks with minimal guidance.

Job Responsibilities

 Support and enhancement for 11 Java services – Microservice, Spring boot

Department/Project Description

Customer is one of the world's leading healthcare organizations, operating across 170+ countries with a strong focus on diabetes, obesity, and rare disease care. We are in managed service contract for 55+ AEM websites.

Description

We are looking for a Senior Java Engineer to join a project focused on financial documentation and document processing solutions within the insurance domain.

You will work on the development and evolution of reliable, scalable backend services, collaborating with an experienced international engineering team and business stakeholders.

Requirements

• 5+ years of professional experience in Java development.
• Strong knowledge of Java 17+.
• Strong hands-on experience with Spring / Spring Boot.
• Solid experience developing REST APIs and microservices.
• Strong understanding of OOP, SOLID principles, design patterns, and clean code.
• Good knowledge of SQL and relational databases such as PostgreSQL or Oracle.
• Experience with Kafka or other messaging technologies.
• Experience with unit and integration testing.
• Good understanding of CI/CD and DevOps practices.
• Experience with Git and modern software development workflows.
• Experience working with Docker and preferably Kubernetes.
• Strong analytical and problem-solving skills.
• Ability to work independently and take ownership of assigned areas.
• Upper-Intermediate or higher English.
• Knowledge of security and compliance requirements in financial services.

Job responsibilities

• Design, develop, and maintain high-quality Java backend applications and services.
• Implement new features and enhancements based on business and technical requirements.
• Develop and maintain RESTful APIs and microservices.
• Participate in technical design and contribute to architectural decisions.
• Write clean, maintainable, and well-tested code.
• Perform code reviews and contribute to engineering best practices.
• Investigate and resolve complex technical and production issues.
• Work with databases, messaging systems, and external integrations.
• Collaborate with Product Owners, Business Analysts, QA engineers, architects, and other developers.
• Contribute to system performance, reliability, security, and scalability improvements.
• Participate in CI/CD, deployment, and production support activities.