CrawlJobs Logo

Senior JVM Software Engineer

https://www.inetum.com Logo

Inetum

Location Icon

Location:
Poland , Warsaw

Category Icon

Job Type Icon

Contract Type:
Not provided

Salary Icon

Salary:

Not provided

Job Description:

Join as Full Stack Developer (70% BE / 30% FE) to contribute to feature development in the Mobile Engineering department for a client in the telecommunications industry.

Job Responsibility:

  • Backend development and frontend feature implementation (70% BE / 30% FE)
  • Rate limit gateway
  • Frontend for agents
  • Customer complaints management

Requirements:

  • Minimum 4 years of experience as a Full Stack Developer
  • Backend: Java, Spring Boot, PostgreSQL
  • Frontend: React, TypeScript, HTML, CSS
  • Experience in designing inter-service communication (REST, WebSocket, Message Broker)
  • Proficiency in Docker
  • Ability to write unit and integration tests (JUnit, Mockito)
  • English and Polish at B2 level
  • Independent and team-oriented work approach

Nice to have:

  • Experience with Kafka, Kubernetes
  • German
What we offer:
  • Flexible working hours
  • Hybrid work model
  • Cafeteria system
  • Generous referral bonuses
  • Additional revenue sharing opportunities
  • Ongoing guidance from a dedicated Team Manager
  • Tailored technical mentoring
  • Dedicated team-building budget
  • Opportunities to participate in charitable initiatives and local sports programs
  • Supportive and inclusive work culture

Additional Information:

Job Posted:
March 29, 2025

Employment Type:
Fulltime
Work Type:
Hybrid work
Job Link Share:

Looking for more opportunities? Search for other job offers that match your skills and interests.

Briefcase Icon

Similar Jobs for Senior JVM Software Engineer

Senior JVM Software Engineer

A leading German company in the telecommunications and IT services industry is r...
Location
Location
Poland , Warsaw
Salary
Salary:
Not provided
https://www.inetum.com Logo
Inetum
Expiration Date
Until further notice
Flip Icon
Requirements
Requirements
  • 3,5+ years of experience
  • Java
  • Spring (Boot)
  • JUnit
  • REST
  • RDBMS
  • Good English skills - min. B2
Job Responsibility
Job Responsibility
  • Develop and implement business functionalities within the domain, such as discount rule management
  • Participate in a dedicated sprint every two months for bug fixing and system support
What we offer
What we offer
  • Flexible working hours
  • Hybrid work model
  • Cafeteria system
  • Generous referral bonuses
  • Additional revenue sharing opportunities
  • Ongoing guidance from a dedicated Team Manager
  • Tailored technical mentoring
  • Dedicated team-building budget
  • Opportunities to participate in charitable initiatives and local sports programs
  • Supportive and inclusive work culture
  • Fulltime
Read More
Arrow Right

Senior JVM Software Engineer

Design, develop, and implement robust and scalable backend solutions to integrat...
Location
Location
Poland , Kraków
Salary
Salary:
Not provided
https://www.inetum.com Logo
Inetum
Expiration Date
Until further notice
Flip Icon
Requirements
Requirements
  • Minimum 5 years of experience as a Backend Engineer, preferably within a product organization
  • Strong proficiency in Java 8
  • Solid experience with Spring Boot and Hibernate
  • Experience designing and implementing RESTful APIs and Microservices
  • Good understanding of design patterns
Job Responsibility
Job Responsibility
  • Design, develop, and implement robust and scalable backend solutions to integrate our platform with customer systems
  • Write clean, well-documented, and efficient code, adhering to best practices and coding standards
  • Develop and execute comprehensive unit and integration tests to ensure the reliability and stability of the backend systems
  • Troubleshoot and resolve complex technical issues related to backend integrations
  • Serve as the backend expert during client projects, providing guidance and support on all backend-related matters
  • Coach and mentor client-side development teams, fostering their technical growth and ensuring successful integration
What we offer
What we offer
  • Flexible working hours
  • Hybrid work model
  • Cafeteria system
  • Generous referral bonuses
  • Additional revenue sharing opportunities
  • Ongoing guidance from a dedicated Team Manager
  • Tailored technical mentoring
  • Dedicated team-building budget
  • Opportunities to participate in charitable initiatives and local sports programs
  • Supportive and inclusive work culture
  • Fulltime
Read More
Arrow Right

Senior JVM Software Engineer

The project is centered around order management, providing and maintaining multi...
Location
Location
Poland , Poznań
Salary
Salary:
Not provided
https://www.inetum.com Logo
Inetum
Expiration Date
Until further notice
Flip Icon
Requirements
Requirements
  • Spring boot 3.x
  • Java 17+
  • JPA/Hibernate
  • OpenAPI
  • SQL
  • PostgreSQL
  • GIT
  • Maven
  • Docker
  • Kubernetes
Job Responsibility
Job Responsibility
  • Provide and maintain multiple integration interfaces
  • Rewrite and migrate solutions from JBoss/WildFly and Java 6/8 to Spring Boot and Java 21
What we offer
What we offer
  • Flexible working hours
  • Hybrid work model
  • Cafeteria system
  • Referral bonuses
  • Revenue sharing opportunities
  • Professional development
  • Team support
  • Team-building budget
  • Charitable initiatives
  • Local sports programs
  • Fulltime
Read More
Arrow Right

Senior JVM Software Engineer

We are seeking experienced Backend Developers to work on multiple projects withi...
Location
Location
Poland , Warsaw
Salary
Salary:
Not provided
https://www.inetum.com Logo
Inetum
Expiration Date
Until further notice
Flip Icon
Requirements
Requirements
  • Java (migration to 21)
  • Spring (boot, web, test, data)
  • Hibernate
  • JUnit
  • REST
  • RDBMS (postgres, Sybase)
  • English and Polish - B2 or higher (fluent communication skills)
Job Responsibility
Job Responsibility
  • Lead the Spring Boot upgrade effort to version 3.x
  • Participate in product development related to Customer Data, Payments Data, and the new iPayment system
  • Collaborate with cross-functional teams to design, develop, test, and deploy backend services
What we offer
What we offer
  • Flexible working hours
  • Hybrid work model
  • Cafeteria system
  • Generous referral bonuses
  • Additional revenue sharing opportunities
  • Ongoing guidance from a dedicated Team Manager
  • Tailored technical mentoring
  • Dedicated team-building budget
  • Opportunities to participate in charitable initiatives and local sports programs
  • Supportive and inclusive work culture
  • Fulltime
Read More
Arrow Right

Senior Software Engineer

We are looking for engineers that can leverage their deep technical experience t...
Location
Location
United States , Lehi
Salary
Salary:
Not provided
clientsuccess.com Logo
ClientSuccess
Expiration Date
Until further notice
Flip Icon
Requirements
Requirements
  • 5+ years professional software engineering experience
  • BS in Computer Science or similar
  • Ability to write clean and easily maintained code
  • Technical design skills with an emphasis on distributed and/or cloud-based scaling
  • Understanding of both client-side and server-side paradigms
  • Experience with Java, Clojure, or other JVM based technologies
  • Experience with SQL, database modeling, and ORMs
  • Experience with Javascript
  • Experience in React.js, Angular, HTML, CSS
  • Experience with event-based message processing
Job Responsibility
Job Responsibility
  • Own high impact and high visibility engineering projects end to end
  • Build and maintain our platform in a way that is scalable, extensible, and efficient in usage of system resources (memory, disk, I/O, etc)
  • Collaborate with product management and customers to deliver projects with measurable results
  • Mentor others within your team and the organization
  • Build systems and services that have an immediate impact on our customers
  • Fulltime
Read More
Arrow Right

Senior Software Engineer - Data Integration & JVM Ecosystem

The Connectors team is the bridge between ClickHouse and the entire data ecosyst...
Location
Location
United States
Salary
Salary:
125600.00 - 185500.00 USD / Year
clickhouse.com Logo
ClickHouse
Expiration Date
Until further notice
Flip Icon
Requirements
Requirements
  • 6+ years of software development experience focusing on building and delivering high-quality, data-intensive solutions
  • Proven experience with the internals of at least one of the following technologies: Apache Spark, Apache Flink, Kafka Connect, or Apache Beam
  • Experience developing or extending connectors, sinks, or sources for at least one big data processing framework such as Apache Spark, Flink, Beam, or Kafka Connect
  • Strong understanding of database fundamentals: SQL, data modeling, query optimization, and familiarity with OLAP/analytical databases
  • A track record of building scalable data integration systems (beyond simple ETL jobs)
  • Strong proficiency in Java and the JVM ecosystem, including deep knowledge of memory management, garbage collection tuning, and performance profiling
  • Solid experience with concurrent programming in Java, including threads, executors, and reactive or asynchronous patterns
  • Outstanding written and verbal communication skills to collaborate effectively within the team and across engineering functions
  • Understanding of JDBC, network protocols (TCP/IP, HTTP), and techniques for optimizing data throughput over the wire
  • Passion for open-source development
Job Responsibility
Job Responsibility
  • Own and maintain critical parts of ClickHouse's Data engineering ecosystem
  • Craft tools that enable Data Engineers to harness ClickHouse's incredible speed and scale
  • Own the full lifecycle of data framework integrations - from the core database driver that handles billions of records per second, to SDKs and connectors that make ClickHouse feel native in JVM-based applications
  • Build the foundation that thousands of Data engineers rely on for their most critical data workloads
  • Collaborate closely with the open-source community, internal teams, and enterprise users to ensure our JVM integrations set the standard for performance, reliability, and developer experience
What we offer
What we offer
  • Flexible work environment - ClickHouse is a globally distributed company and remote-friendly. We currently operate in 20 countries
  • Healthcare - Employer contributions towards your healthcare
  • Equity in the company - Every new team member who joins our company receives stock options
  • Time off - Flexible time off in the US, generous entitlement in other countries
  • A $500 Home office setup if you’re a remote employee
  • Global Gatherings – We believe in the power of in-person connection and offer opportunities to engage with colleagues at company-wide offsites
  • Fulltime
Read More
Arrow Right

Senior Software Engineer - Data Integration & JVM Ecosystem

The Connectors team is the bridge between ClickHouse and the entire data ecosyst...
Location
Location
Netherlands , Amsterdam
Salary
Salary:
Not provided
clickhouse.com Logo
ClickHouse
Expiration Date
Until further notice
Flip Icon
Requirements
Requirements
  • 6+ years of software development experience focusing on building and delivering high-quality, data-intensive solutions
  • Proven experience with the internals of at least one of the following technologies: Apache Spark, Apache Flink, Kafka Connect, or Apache Beam
  • Experience developing or extending connectors, sinks, or sources for at least one big data processing framework such as Apache Spark, Flink, Beam, or Kafka Connect
  • Strong understanding of database fundamentals: SQL, data modeling, query optimization, and familiarity with OLAP/analytical databases
  • A track record of building scalable data integration systems (beyond simple ETL jobs)
  • Strong proficiency in Java and the JVM ecosystem, including deep knowledge of memory management, garbage collection tuning, and performance profiling
  • Solid experience with concurrent programming in Java, including threads, executors, and reactive or asynchronous patterns
  • Outstanding written and verbal communication skills to collaborate effectively within the team and across engineering functions
  • Understanding of JDBC, network protocols (TCP/IP, HTTP), and techniques for optimizing data throughput over the wire
  • Passion for open-source development
Job Responsibility
Job Responsibility
  • Own and maintain critical parts of ClickHouse's Data engineering ecosystem
  • Own the full lifecycle of data framework integrations - from the core database driver that handles billions of records per second, to SDKs and connectors that make ClickHouse feel native in JVM-based applications
  • Build the foundation that thousands of Data engineers rely on for their most critical data workloads
  • Collaborate closely with the open-source community, internal teams, and enterprise users to ensure our JVM integrations set the standard for performance, reliability, and developer experience
What we offer
What we offer
  • Flexible work environment - ClickHouse is a globally distributed company and remote-friendly. We currently operate in 20 countries
  • Healthcare - Employer contributions towards your healthcare
  • Equity in the company - Every new team member who joins our company receives stock options
  • Time off - Flexible time off in the US, generous entitlement in other countries
  • A $500 Home office setup if you’re a remote employee
  • Global Gatherings – We believe in the power of in-person connection and offer opportunities to engage with colleagues at company-wide offsites
Read More
Arrow Right

Senior Software Engineer - Data Integration & JVM Ecosystem

The Connectors team is the bridge between ClickHouse and the entire data ecosyst...
Location
Location
Germany
Salary
Salary:
Not provided
clickhouse.com Logo
ClickHouse
Expiration Date
Until further notice
Flip Icon
Requirements
Requirements
  • 6+ years of software development experience focusing on building and delivering high-quality, data-intensive solutions
  • Proven experience with the internals of at least one of the following technologies: Apache Spark, Apache Flink, Kafka Connect, or Apache Beam
  • Experience developing or extending connectors, sinks, or sources for at least one big data processing framework such as Apache Spark, Flink, Beam, or Kafka Connect
  • Strong understanding of database fundamentals: SQL, data modeling, query optimization, and familiarity with OLAP/analytical databases
  • A track record of building scalable data integration systems (beyond simple ETL jobs)
  • Strong proficiency in Java and the JVM ecosystem, including deep knowledge of memory management, garbage collection tuning, and performance profiling
  • Solid experience with concurrent programming in Java, including threads, executors, and reactive or asynchronous patterns
  • Outstanding written and verbal communication skills to collaborate effectively within the team and across engineering functions
  • Understanding of JDBC, network protocols (TCP/IP, HTTP), and techniques for optimizing data throughput over the wire
  • Passion for open-source development
Job Responsibility
Job Responsibility
  • Own and maintain critical parts of ClickHouse's Data engineering ecosystem
  • Own the full lifecycle of data framework integrations - from the core database driver to SDKs and connectors
  • Build the foundation that thousands of Data engineers rely on for their most critical data workloads
  • Collaborate closely with the open-source community, internal teams, and enterprise users to ensure our JVM integrations set the standard for performance, reliability, and developer experience
What we offer
What we offer
  • Flexible work environment - ClickHouse is a globally distributed company and remote-friendly
  • Healthcare - Employer contributions towards your healthcare
  • Equity in the company - Every new team member who joins our company receives stock options
  • Time off - Flexible time off in the US, generous entitlement in other countries
  • A $500 Home office setup if you’re a remote employee
  • Global Gatherings – opportunities to engage with colleagues at company-wide offsites
Read More
Arrow Right