Jobs Java

We are looking for a Senior Backend Engineer (Java) for our partner, a growing software company based in Spain.

Our partner combines product development with client-facing engineering work. They build their own products in the search and AI space while also delivering software solutions for enterprise customers. As part of an international engineering team, you will work on the backend of a live production platform used by real customers and play a key role in the evolution of its architecture.

This is a full-time remote contract position with an initial commitment of at least six months and the possibility of long-term extension.

Responsibilities

* Design, develop, and maintain backend services and APIs using Java and Spring Boot.

* Participate in a major platform migration toward a more secure and modern architecture.

* Contribute to architectural and technical design decisions.

* Transform business requirements into scalable technical solutions.

* Improve and refactor existing systems while maintaining production stability.

* Collaborate closely with QA and cross-functional teams throughout the development lifecycle.

* Participate in Agile ceremonies and planning activities.

* Utilize AI-assisted development tools where they provide measurable value.

Requirements

Technical Skills

* 5+ years of professional software engineering experience.

* Strong hands-on experience with Java and Spring Boot.

* Proven experience building and maintaining production-grade APIs and backend systems.

* Solid understanding of software architecture, system design, and data modeling.

* Experience working on live products with real production workloads.

* Practical experience using AI coding assistants and developer productivity tools.

Communication

* English level B2 or higher.

* Ability to communicate technical concepts clearly to both technical and non-technical stakeholders.

* Strong written communication and documentation skills.

* Comfortable working within distributed international teams.

Personal Qualities

* Strong ownership mentality and proactive approach.

* Ability to identify issues early and drive solutions independently.

* Open-minded and adaptable when evaluating technologies and approaches.

* Focus on code quality, maintainability, and long-term sustainability.

* Collaborative attitude and strong teamwork skills.

Engagement Details

* Fully remote.

* Full-time contract position.

* Initial engagement of at least 6 months.

* Potential extension based on project needs and performance.

If you are interested, please send your CV and we will be happy to provide additional information about the project and interview process.

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

• Responsibilities:

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

• Mandatory Skills Description:

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

The full production cycle IT company Nabuto specializes in the development of software products/services in the field of information technologies.

We operate in the FinTech/trading domain, running a data-intensive platform that processes millions of real-time events. The environment is low-latency, high-load and engineered for continuous availability.

We’re building a high-performance cryptocurrency trading platform and looking for a Strong Middle Java Engineer to help us develop and scale the core backend systems powering real-time trading operations.
You’ll work on latency-sensitive, high-throughput services responsible for processing large volumes of market and trading events in real time. The role requires solid backend engineering fundamentals, attention to performance and reliability, and the ability to work comfortably in distributed systems with demanding uptime requirements.
You’ll be involved in designing and developing microservices, improving system scalability, optimizing data flows, and contributing to the platform’s overall stability. We value engineers who write clean, maintainable code, take ownership of their work, and can operate effectively in a fast-moving engineering environment.
Our stack is heavily focused on Java and modern backend technologies, running in a cloud-native infrastructure with Kubernetes and event-driven architecture patterns.

Responsibilities
• Development and design of a semi-crical microservices.

Requirements
• 5 years of experience as a Java Engineer.
• Experience with Java 18+.
• Computer science fundamentals (algorithms and data structures).
• Spring Boot/Hibernate applications development.
• SQL knowledge.
• Experience with message brokers.
• Leveraging of AI coding assistants (Claude Code, Codex, Amazon Kiro) as part of the daily engineering workflow.
• It would be great to have a hands-on experience with the Hazelcast platform.
• Master’s degree focused on Computer Science or a similar specialization.

Nice to Have
• Experience working with high-load or real-time systems.
• Streaming Technologies (Apache Flink, Hazelcast Platform).
• AWS Cloud.
• Distributed systems fundamentals.
• Kubernetes Fundamentals.

What We Offer
• Work-Life Balance — 24 days of paid vacation + 30 days of paid sick leave.
• Care from Day One — medical insurance from your first day, including dental care, massage, and professional psychological support.
• Knowledge Library — office books and access to the Kuka online library.
• Investment in Your Energy — partial reimbursement for sports and fitness activities.
• Growth & Learning — coverage for English or Ukrainian language courses and a dedicated professional development budget.
• Island Relaxation — up to 14 days per year at the company villa in Cyprus.

Join the Nabuto team, where your talents and aspirations will be recognized!

We offer a dynamic work environment, opportunities for professional growth, and support at every step of your career path. Start your journey to success with us—apply today and take the first step towards your bright future!

Nabuto is an equal opportunity employer. We encourage applications from candidates of all backgrounds and experiences. 

Please note, that only shortlisted candidates will be contacted. Thank you for considering Nabuto as your next career move!

Project Description:

For the world most global bank we are building the platform, which supports various information gathering and processing across the organization and providing access to this data

Responsibilities:

Candidate will be responsible for building out the firm's strategic reference data platforms to serve businesses within client company. The successful applicant will take ownership of key projects and components and will be responsible for all phases of SDLC including analysis and design, development, testing and deployment. As a developer, the candidate will be responsible for developing & deploying technical solution following engineering excellence standards. A potential candidate will need to understand system and enterprise architecture concepts and will be expected to understand how all components fir together and impact one another. They will work with a global and diverse team of peers as well as liaise closely with Business Analyst, Production Support, and infrastructure teams.

Responsibilities:
- Deliver assigned development projects withing agreed schedule, quality and scope expectations
- Participate in all stages of SDLC within an agile Scrum environment
- Form partnership with technology vendors and gain deep understanding of products
- Enhance/Re-architect existing components to satisfy new requirements in terms of performance and scalability
- Provide level 3 (escalation) support for the application

Mandatory Skills Description:

- At least 6+ years of experience with Java
- Experience/understanding with the following technologies:
- Java (Core, JDBC, MT, Collections, I/O), Spring Boot
- SQL.PL-SQL on Oracle DB
- Container platform based on Kubernetes
- REST web services, Kafka, Redis
- Unix Commands and shell scripting.
- Familiarity with standard data structures and algorithms.
- Experience using the following tools - JIRA, Harness/uDeploy, SonarQube, TeamCity, Artifactory, Git (GHE & Bitbucket)
- Logical thinking, strong analytical and problem-solving skills; innovate and solutions oriented
- Effective time management skills to manage multiple priorities with flexibility on time zones and timelines
- Excellent verbal and written communication skills
- Bachelor's degree in computer science or equivalent work experience

Nice-to-Have Skills Description:

- Master's degree in computer science or equivalent work experience
- Experience working with the Scrum methodology
- Experience working with a NoSQL database
- Experience designing and implementing microservices
- Financial services technology experience preferably in reference data domain
- Physical and logical data modeling

Languages:

English: B2 Upper Intermediate

For the world most global bank we are building the platform, which supports various information gathering and processing across the organization and providing access to this data

Responsibilities:

Candidate will be responsible for building out the firm's strategic reference data platforms to serve businesses within client company. The successful applicant will take ownership of key projects and components and will be responsible for all phases of SDLC including analysis and design, development, testing and deployment. As a developer, the candidate will be responsible for developing & deploying technical solution following engineering excellence standards. A potential candidate will need to understand system and enterprise architecture concepts and will be expected to understand how all components fir together and impact one another. They will work with a global and diverse team of peers as well as liaise closely with Business Analyst, Production Support, and infrastructure teams.

- Deliver assigned development projects withing agreed schedule, quality and scope expectations
- Participate in all stages of SDLC within an agile Scrum environment
- Form partnership with technology vendors and gain deep understanding of products
- Enhance/Re-architect existing components to satisfy new requirements in terms of performance and scalability
- Provide level 3 (escalation) support for the application

Mandatory Skills:

- At least 6+ years of experience with Java
- Experience/understanding with the following technologies:
- Java (Core, JDBC, MT, Collections, I/O), Spring Boot
- SQL.PL-SQL on Oracle DB
- Container platform based on Kubernetes
- REST web services, Kafka, Redis
- Unix Commands and shell scripting.
- Familiarity with standard data structures and algorithms.
- Experience using the following tools - JIRA, Harness/uDeploy, SonarQube, TeamCity, Artifactory, Git (GHE & Bitbucket)
- Logical thinking, strong analytical and problem-solving skills; innovate and solutions oriented
- Effective time management skills to manage multiple priorities with flexibility on time zones and timelines
- Excellent verbal and written communication skills
- Bachelor's degree in computer science or equivalent work experience

Nice-to-Have Skills:

- Master's degree in computer science or equivalent work experience
- Experience working with the Scrum methodology
- Experience working with a NoSQL database
- Experience designing and implementing microservices
- Financial services technology experience preferably in reference data domain
- Physical and logical data modeling

• For the world most global bank we are building the platform, which supports various information gathering and processing across the organization and providing access to this data

   

• Responsibilities:

  Candidate will be responsible for building out the firm's strategic reference data platforms to serve businesses within client company. The successful applicant will take ownership of key projects and components and will be responsible for all phases of SDLC including analysis and design, development, testing and deployment. As a developer, the candidate will be responsible for developing & deploying technical solution following engineering excellence standards. A potential candidate will need to understand system and enterprise architecture concepts and will be expected to understand how all components fir together and impact one another. They will work with a global and diverse team of peers as well as liaise closely with Business Analyst, Production Support, and infrastructure teams.
  
  Responsibilities:
  - Deliver assigned development projects withing agreed schedule, quality and scope expectations
  - Participate in all stages of SDLC within an agile Scrum environment
  - Form partnership with technology vendors and gain deep understanding of products
  - Enhance/Re-architect existing components to satisfy new requirements in terms of performance and scalability
  - Provide level 3 (escalation) support for the application

   

• Mandatory Skills Description:

  - At least 6+ years of experience with Java
  - Experience/understanding with the following technologies:
  - Java (Core, JDBC, MT, Collections, I/O), Spring Boot
  - SQL.PL-SQL on Oracle DB
  - Container platform based on Kubernetes
  - REST web services, Kafka, Redis
  - Unix Commands and shell scripting.
  - Familiarity with standard data structures and algorithms.
  - Experience using the following tools - JIRA, Harness/uDeploy, SonarQube, TeamCity, Artifactory, Git (GHE & Bitbucket)
  - Logical thinking, strong analytical and problem-solving skills; innovate and solutions oriented
  - Effective time management skills to manage multiple priorities with flexibility on time zones and timelines
  - Excellent verbal and written communication skills
  - Bachelor's degree in computer science or equivalent work experience

   

• Nice-to-Have Skills Description:

  - Master's degree in computer science or equivalent work experience
  - Experience working with the Scrum methodology
  - Experience working with a NoSQL database
  - Experience designing and implementing microservices
  - Financial services technology experience preferably in reference data domain
  - Physical and logical data modeling

   

• Languages:
  • English: B2 Upper Intermediate

NovaCore is looking for a Java Backend Developer to join an upcoming FinTech project. We are looking for an engineer who can build secure backend services, design reliable APIs, and work with transaction-heavy distributed systems.

Project

The project is a FinTech platform that helps businesses manage customer accounts, payment transactions, refunds, settlements, and financial reporting. The backend consists of Java and Spring Boot services responsible for transaction processing, payment-provider integrations, authentication, audit logging, and fraud-prevention workflows. Asynchronous financial events are processed through message brokers, while PostgreSQL and Redis are used for persistent storage, caching, and transaction state management. The team is currently improving system reliability, introducing additional payment methods, and optimizing transaction processing under increased load.

Requirements

• 2+ years of commercial Java development experience.
• Strong knowledge of Java Core and modern Java versions.
• Practical experience with Spring Boot and Spring Framework.
• Experience designing and developing REST APIs.
• Good knowledge of Spring Data JPA and Hibernate.
• Experience with PostgreSQL, MySQL, or another relational database.
• Understanding of database transactions, isolation levels, and data consistency.
• Knowledge of OOP, SOLID principles, and common design patterns.
• Experience with Maven or Gradle.
• Experience with Git and collaborative development workflows.

• English level B1+.

   

Nice to have

• Experience in FinTech, banking, payment systems, or billing platforms.
• Knowledge of Spring Security, OAuth 2.0, and JWT.
• Experience with Kafka or RabbitMQ.
• Understanding of idempotency and distributed transaction patterns.
• Experience with Redis and distributed caching.
• Familiarity with microservice and event-driven architectures.
• Experience with Docker, Kubernetes, and CI/CD.
• Knowledge of AWS, Azure, or GCP.
• Experience with JUnit, Mockito, Testcontainers, and integration testing.

• Familiarity with PCI DSS or financial-data security practices.

   

Responsibilities

• Develop and maintain backend services using Java and Spring Boot.
• Implement payment, transaction, refund, and settlement workflows.
• Design secure and maintainable REST APIs.
• Integrate external payment gateways and financial providers.
• Develop asynchronous workflows using message brokers.
• Ensure consistency and idempotency of financial operations.
• Optimize database queries and backend performance.
• Write unit, integration, and API tests.
• Participate in code reviews and architecture discussions.
• Investigate production incidents and improve system reliability.
• Maintain technical documentation and communicate progress proactively.

Working conditions

• Format: Remote.
• Office attendance: Optional.
• Employment: Full-time or long-term contract.
• Schedule: Flexible working hours with agreed team availability.
• Cooperation type: Talent Pool / Upcoming Projects.
• Compensation: Based on technical level and interview results.
• Paid vacation and sick leave according to the cooperation agreement.
• Educational support and access to internal technical materials.

About NovaCore

NovaCore develops scalable digital products for FinTech, Healthcare, E-commerce, and enterprise clients. We focus on reliable architecture, secure engineering, transparent communication, and long-term product value. When a matching active project is not immediately available, applications are considered for upcoming opportunities through the NovaCore talent pool.

Project Description:

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

We are looking for a strong Senior Java Developer capable of being able to work within the team, being a mentor for team members, communicating with stakeholders, and being accountable for the outcomes of activities that are assigned.

The role of the involves working with strong development teams (2 Senior Java Developers), the opportunity to work with big data, improving knowledge in this domain, and utilizing the resources of an international bank.

Responsibilities:

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

Mandatory Skills Description:

• Strong knowledge of Big Data technologies: Hadoop Ecosystem (HDFS, Impala, HIVE, HBASE, etc.) and Apache Spark. Green flags: Spark, Hive, Hadoop.
• At least 5 years of experience in software development, including professional backend software development experience;
• Strong Knowledge of Java programming languages
• Should be familiar with algorithms and design patterns
• Familiarity with Linux environment, including scripting skills
• Designing and building APIs (Java);
• Java Server-side or Back-end development;
• Core Java;
• Java collections and multithreading;
• Java Memory Management;
• Database and SQL (writing stored procedures, designing table schemas).
• Understanding of distributed systems.
• Understanding of CI/CD workflow.

• Ability to multi-task and work under pressure.
• Ability to pick up new concepts and apply the knowledge.
• Demonstrated problem-solving skills.
• Enthusiastic and proactive approach with a willingness to learn.
• The candidate is expected to be dynamic and flexible with a high energy level as this is a demanding and rapidly changing environment

Nice-to-Have Skills Description:

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

• Project Description:

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

• Responsibilities:

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

• Mandatory Skills Description:

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

• Nice-to-Have Skills Description:

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

• Languages:
  • English: B2 Upper Intermediate

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

We are looking for a strong Senior Java Developer capable of being able to work within the team, being a mentor for team members, communicating with stakeholders, and being accountable for the outcomes of activities that are assigned.

The role of the involves working with strong development teams (2 Senior Java Developers), the opportunity to work with big data, improving knowledge in this domain, and utilizing the resources of an international bank.

Responsibilities:

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

Mandatory Skills:

• Strong knowledge of Big Data technologies Hadoop Ecosystem (HDFS, Impala, HIVE, HBASE, etc.) and Apache Spark
• At least 5 years of experience in software development, including professional backend software development experience;
• Strong Knowledge of Java programming languages
• Should be familiar with algorithms and design patterns
• Familiarity with Linux environment, including scripting skills
• Designing and building APIs (Java);
• Java Server-side or Back-end development;
• Core Java;
• Java collections and multithreading;
• Java Memory Management;
• Database and SQL (writing stored procedures, designing table schemas).
• Understanding of distributed systems.
• Understanding of CI/CD workflow.

• Ability to multi-task and work under pressure.
• Ability to pick up new concepts and apply the knowledge.
• Demonstrated problem-solving skills.
• Enthusiastic and proactive approach with a willingness to learn.
• The candidate is expected to be dynamic and flexible with a high energy level as this is a demanding and rapidly changing environment

Nice-to-Have Skills:

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

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

We are looking for a strong Senior Java Developer capable of being able to work within the team, being a mentor for team members, communicating with stakeholders, and being accountable for the outcomes of activities that are assigned.

The role of the involves working with strong development teams (2 Senior Java Developers), the opportunity to work with big data, improving knowledge in this domain, and utilizing the resources of an international bank.

• Responsibilities:

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

• Mandatory Skills Description:

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

• Nice-to-Have Skills Description:

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

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 for our Vilnius office. 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.

We are currently looking for 4 Java Developers to support the following activities:

Development and implementation of technical integrations between the FaktorZehn quotation and policy management system — a new property and casualty insurance system — and the relevant peripheral systems.

Responsibilities

Java software development within the new property and casualty insurance quotation and policy management system

Integration with the claims management system, including technical data provision, contract data, lead insurance and participation data

Integration with the reinsurance system, including reinsurance determination, premium data and contract data

Integration with the document generation and printing system, including technical data provision and dynamic document structures

Integration with the partner management system, including development of creditor-related functionality

Integration with the Data Warehouse, including technical data provision and mapping data to target structures

Implementation of SOAP and REST web services

Test-driven and behaviour-driven development using TDD and BDD

CI/CD implementation using the specified toolchain

Mandatory Requirements

Strong experience with Java SE/EE and in-depth backend development expertise

Experience developing web services and interfaces using SOAP and REST

Experience integrating peripheral systems such as claims, reinsurance, document generation, partner management and Data Warehouse systems

Experience with test-driven development and behaviour-driven development: TDD and BDD

Experience with SQL databases

Experience with CI/CD and build tools, including Jenkins, Docker, Maven, Gradle, Git and Artifactory

Business-fluent German

Preferred Requirements

Experience with the FaktorZehn product suite, including IPM, IPS and F10-IOS, or with a comparable standard property and casualty insurance quotation and policy management system

Experience with Vaadin and Spring Boot

Experience mapping data to target structures for Data Warehouse integrations

Experience in property and casualty insurance, primary insurance or policy management system environments

Please feel free to send us profiles of German-speaking experts who meet as many of the listed qualifications as possible.

Job Description

- 2+ years of Java developing and boostering automated QA systems and associated test strategies.
- Experience working with business-critical customer-facing applications (user interfaces, APIs and back-end services).
- Excellent communication skills with emphasis on writing detail-oriented documents and communications.
- Strong understanding of object-oriented programming concepts.
- Strong understanding of web UI/API and services automation testing (Selenium WebDriver/Selenide, Playwright, RestAssured).
- Experience using BDD approach
- Strong experience with Linux.
- Experience with continuous integration tools, such as Jenkins.
- Shifted working hours 12pm till 8pm EEST timezone

Nice to have:

- Experience with Groovy is a plus
- Experience with the Ad Tech industry.
- Familiarity with clustered computing, distributed and parallel computing concepts.

Job Responsibilities

- Be a creative problem-solver who can draw on an array of expertise and technology to design and implement reliable, scalable and maintainable solutions to challenging problems
- Write production-ready code and unit tests that meet both system and business requirements (Java)
- Respond to feature requests, bug reports, performance issues and ad-hoc questions
- Work collaboratively with multiple teams to deliver quality software
- Support operation of services in production
- Perform code reviews and design reviews

Department/Project Description

Founded in 2007, Magnite’s pioneering technology created a new model for the advertising industry. Today, our automated advertising platform is used by the world’s leading publishers and applications to transact with top brands around the globe enabling them to reach more than 1 billion consumers. Magnite operates the largest independent Display Advertising Exchange and Supply Side Platform that automates the buying and selling of Display Advertising across all formats (banner, video) on all devices (desktop browsers, mobile devices, billboards). Magnite auctions over 20 Billion Ads on a daily basis in real time in less than 1/2 of a second each. Magnite is a publicly traded company (NYSE: RUBI) headquartered in Los Angeles, California, USA.

Job Description

We are seeking a Technical Lead to drive the design and development of the new OneAPI backend platform, a scalable API infrastructure running on cloud-native architecture (AWS & GCP). The Technical Lead will guide a small team of engineers, provide hands-on coding expertise, and ensure delivery excellence with a DevOps-first mindset.

• 10+ years of backend engineering experience with strong expertise in Java & Spring Boot.
• Proven experience building platform-level APIs and distributed systems.
• Deep knowledge of cloud platforms (AWS and/or GCP) and cloud-native architectures.
• Strong Kubernetes (K8s) experience for container orchestration.
• DevOps mindset: CI/CD pipelines, monitoring, observability, automation.
• Experience leading small, versatile teams and collaborating across disciplines.
• Experience working in a team responsible for products quality
• Strong problem-solving and communication skills.

Job Responsibilities

• Lead architecture and technical design for the OneAPI backend platform.
• Drive best practices in coding, testing, CI/CD, and DevOps culture.
• Collaborate with stakeholders to define API standards, integration patterns, and platform roadmap.
• Provide technical mentorship and guidance to the engineering team.
• Ensure solutions are secure, scalable, and optimized for performance.
• Ensure quality of develope software
• Participate hands-on in development, especially in critical/complex components.

Department/Project Description

Our client is a global leader in cloud security, enabling organizations to securely transform their networks and applications for a mobile and cloud-first world. Through its Zero Trust Exchange™ platform, it provides fast, secure, and seamless access to applications, regardless of device, location, or network. Trusted by thousands of enterprises, their products help reduce risk, lower IT costs, and deliver a better user experience by replacing traditional on-premises security with a modern cloud-delivered approach.