Back-end Java Developer Job at Apollo Solutions (Bruxelles)

Back-end Developer

For our R&D team that deals with the development of custom integration and autom...

Location

Italy , Padova

Salary:

Not provided

Nethive SPA

Expiration Date

Until further notice

Requirements

Good knowledge of Java and Spring Cloud
Knowledge of the Linux operating system
Knowledge of Microservices and Kubernetes architectures
Knowledge of SQL and/or NoSQL databases

Job Responsibility

Backend development of Cloud platforms for the centralized management of network and security services (Firewall, VPN, Web Content Filtering, DPI, Traffic Shaping, Authentication)

What we offer

Customized training courses
Welcome kit with numerous gadgets
Free coffee
Meal vouchers
Healthcare
Corporate welfare bonuses

Fulltime

Back-End Developer

Start.io is a mobile marketing and audience platform. Start. io empowers the mob...

Location

Salary:

Not provided

Start.io

Expiration Date

Until further notice

Requirements

Bachelor’s degree in Computer Science or equivalent practical experience
2-3 years of professional Java development experience - Must
Proven track record in designing and delivering complex distributed systems and microservices (Docker, Kubernetes)
Strong understanding of scalability, concurrency, and performance optimization challenges
Hands-on experience with CI/CD tools and automated build/deployment pipelines
Proficiency in Spring & Spring Boot frameworks
Excellent communication skills and the ability to influence technical direction across teams
Experience running applications on Kubernetes, with a focus on designing services that scale efficiently and consume resources effectively (rather than cluster administration)
Ability to measure and improve application performance using profiling, benchmarking, and APM tools (e.g., JFR, JMeter, Micrometer, New Relic, Datadog)

Job Responsibility

Design and develop highly scalable, modular backend applications and APIs using Java and Spring Boot
Own the full development lifecycle — from requirements analysis, design, coding, and testing to deployment and monitoring in production
Lead initiatives to improve system scalability, performance, and security
Collaborate closely with Product, Algo, DevOps, BI, and Marketing to deliver integrated, business-driven solutions
Ensure observability through robust logging, metrics, and alerting with tools like Prometheus, Grafana, Kibana
Drive adoption of engineering best practices, code quality standards, and technical documentation
Mentor and guide junior developers, fostering knowledge sharing and continuous improvement

Back-End Senior Developer

We are looking for a highly talented and motivated senior engineer to join our R...

Location

United States , Scottsdale, Arizona

Salary:

Not provided

Sky Republic

Expiration Date

Until further notice

Requirements

5+ years’ experience in back-end software development
Desire and ability to rapidly learn new technologies, put them in practice with tough deadlines, and work through challenging problems
Proficient with agile (Scrum/Kanban/XP) software development methodology and continuous delivery techniques and tools (Jenkins, Git, Jira etc.)
Familiar with cloud service development ecosystem (Amazon AWS, Google Cloud Platform, Microsoft Azure)
Practical development experience with some of the following technologies: Concurrent and strongly typed programming language such as Golang (preferred), C++, Java
REST API and JSON schemas
Linux container technologies (Docker, Kubernetes, etc.)
SQL databases (PostgreSQL, MySQL, Oracle)
Information Security concept and cryptography theory
Middleware software technologies (Apache Service Mix, IBM WebSphere, Mulesoft, WSO2 etc.)

Job Responsibility

Contribute to a highly creative and experienced team in an agile and collaborative environment
Participate in all phases of development including design, coding, deployment, testing, documentation and maintenance of Sky Republic solutions
Apply software development best practices such as unit testing, code review, test automation and continuous delivery to produce high quality software
Work with various stakeholders and customers to develop the Sky Republic offering and ensure its adoption

What we offer

Attractive compensation (salary + bonus + equity)
Medical, Dental, Vision, 401K
Flexible working hours

Fulltime

Back-end Developer

Location

Salary:

Not provided

Ennova Research

Expiration Date

Until further notice

Requirements

Excellent knowledge of object-oriented design principles and Web programming
Excellent of Java, Java EE, Spring Framework, Hibernate
Good knowledge of RDBMS
Good knowledge of CI/CD
Excellent predisposition to work in teams
Excellent problem solving skills
Good knowledge of the English language
Good knowledge of the Agile methodology
Ability to collaborate well with other teams (eg back-end development or UI/UX design)

What we offer

Professional growth opportunities
Training program
Teamwork and participation in team building activities
A dynamic, young, creative and stimulating environment
Open-minded and multicultural work environment
Experience with national and international clients

Fulltime

Back-end Web Developer

Robert Half Technology is currently seeking a Back-end Web Developer for an exce...

Location

United States , Greenville

Salary:

Not provided

Robert Half

Expiration Date

Until further notice

Requirements

2+ years direct web development and project implementation experience
working knowledge of current web development languages - PHP, Ruby, Python or Java
strong knowledge of compatibility and cross-browser issues
a real passion for the end-to-end solutions that drive the user experience and customer happiness
experience caring for the technical needs of sites, apps and integrations with high volume traffic
deep understanding of how a mobile user experience differs from the experience on a web or other application
hands-on experience with one of the following server-side languages: RoR or PHP

Job Responsibility

drive and code solutions using creative solutions
collaborate with key partners to deliver on time tested and reusable code in a rapidly changing environment
identify business needs and adapt solutions that align with the company goals
work through complex business processes and create simple solutions integrating best of breed tools
work with leadership and others to find the right solutions

What we offer

medical insurance
vision insurance
dental insurance
life and disability insurance
401(k) plan

Back-End Engineer

At JFrog, we’re reinventing DevOps to help the world’s greatest companies innova...

Location

Israel , Netanya; Tel Aviv

Salary:

Not provided

JFrog

Expiration Date

Until further notice

Requirements

4+ years of Java/GO programming experience
Familiarity with database technologies
Solid architectural understanding of web applications and APIs
Experience with concurrency – big advantage
Experience with production mission-critical systems – advantage
Good exposure with modern DevOps tools like Docker, Kubernetes, Helm, Shell Scripting, CI/CD – advantage

Job Responsibility

Be responsible for all development aspects from design to production of a cloud-native product
Write high-quality, testable and efficient code in Java
Initiate and promote new ideas for continuous improvement of product functionality
Work closely with team members and product colleagues
Participate in the architecture and development of the JFrog DevOps core products
Design, develop, and maintain back-end services
Write high-quality, clean, efficient, and maintainable code while adhering to best practices and coding standards
Stay up-to-date with industry trends and emerging technologies related to DevOps and the software development lifecycle
Contribute to architectural discussions and design sessions to promote scalability and maintainability

Back-end engineer

We are seeking a skilled Back-End Engineer with strong knowledge of Python, Java...

Location

Israel

Salary:

Not provided

Smartech

Expiration Date

Until further notice

Requirements

BSc. in Computer Science, or a related field
5 years of hands on experience in developing backend applications with containerization (Docker) and orchestration (Kubernetes)
5 years of hands-on experience with Python (e.g., Flask, FastAPI, Django) and Java(e.g., Spring Boot, JEE)
Understanding of RESTful APIs, microservices, and system integration
Familiarity with databases (SQL, MongoDB, and/or NoSQL)
Strong foundation in computer science concepts (data structures, algorithms, design patterns)
Experience with Git, CI/CD pipelines, and cloud environments (AWS)

Job Responsibility

Design, develop, and maintain back-end services and APIs using Python and Java over the Spring Boot infrastructure
Build and deploy microservices with Docker and Kubernetes on AWS
Collaborate with front-end engineers to integrate APIs and ensure seamless user experiences
Contribute to front-end development when needed, providing guidance on performance and maintainability
Work with cloud-native tools and AWS services (e.g., Lambda, ECS/EKS, RDS, DynamoDB, S3,CloudWatch)
Implement best practices for security, scalability, and observability indistributed systems
Participate in code reviews, testing, CI/CD pipelines, and DevOps practices
Monitor and optimize system performance, ensuring high availability and resilience

Paid Internship (Back-end)

Are you passionate about building modern, data-driven applications and want to g...

Location

Poland , Warsaw

Salary:

Not provided

Robert Bosch Sp. z o.o.

Expiration Date

Until further notice

Requirements

Current Student of Computer Science, or IT related fields
Basic experience with Java programming and frameworks like Spring Boot or Hibernate
Understanding of REST APIs and webservice concepts
Knowledge of at least one database system (SQL or NoSQL)
Curiosity, problem-solving attitude, and willingness to learn from senior developers
English and Polish languages at a level that allows communication within an international team

Job Responsibility

Support the team in developing and maintaining backend components and APIs
Participate in building microservices and webservices based on Java (Spring Boot, Hibernate)
Assist in integrating and optimizing RESTful APIs
Work with databases such as SQL, MySQL, PostgreSQL, Oracle, or MongoDB
Contribute to code reviews, testing, and documentation
Collaborate closely with developers, testers, and product owners on daily tasks

What we offer

Employment based on a civil-law contract (minimum 6 months)
Hybrid work mode with a modern office in Warsaw
Flexible working hours and full support during your exam sessions
Practical knowledge sharing within international team
Learning and mentoring support from best Experts in the field
A dynamic work environment with a friendly atmosphere
Prepaid Lunch Card Pluxee
Special offer for MultiSport Student
5 days of paid leave after 6 months of work as an intern

Parttime

Back-end Java Developer

Apollo Solutions

Location:
Belgium , Bruxelles

Category:
IT - Software Development

Contract Type:
Not provided

Salary:

Job Description:

Job Responsibility:

Requirements:

Nice to have:

Additional Information:

Job Posted:
January 22, 2026

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