Senior Java Consultant

Next Ventures; Amsterdam; Hybrid; EUR 8,000 - 11,000; Part time

Job summary

A leading recruitment agency is seeking a Senior Java Developer for a 6-month contract in Amsterdam. The ideal candidate will have at least 7 years of experience with core Java, Spring Boot, and Kafka, and will work on designing scalable applications. This role is hybrid, requiring 2 days on-site work per week. Candidates must be EU residents or have independent visas. Strong problem-solving skills are essential for this mid-senior level position.

Qualifications

• Minimum 7 years of hands-on experience in Java development.
• Strong understanding of Spring Boot framework and event-driven architecture.
• Familiarity with Azure cloud platform and online payment systems is a plus.

Responsibilities

• Design, develop, and maintain scalable applications using Java.
• Build and implement RESTful APIs and ensure high quality through testing.
• Collaborate with cross-functional teams for business-driven solutions.
• Ensure high-quality code through unit and integration testing.
• Design and develop scalable, secure, and high-performance applications.
• Work with distributed systems and event-driven architecture; hands-on experience with Kafka is required.
• Develop and deploy applications on the Azure cloud platform, including AKS.
• Possess knowledge of online payment systems and acquiring (nice to have).
• Exhibit a strong problem-solving mindset and analytical thinking.
• Take ownership of end-to-end delivery — from design to deployment and support.
• Collaborate with cross-functional teams to deliver business-driven solutions.

Skills

Java

Spring Boot

Kafka

Job description

Direct message the job poster from Next Ventures

Our client based in Amsterdam is looking for a Senior Java Developer.

Responsibilities

• Demonstrate strong core Java development skills with hands‑on experience.
• Design, develop, and maintain scalable applications using Spring Boot framework.
• Build and implement RESTful APIs; experience with verzek> OpenAPI/Swagger is a plus.
• Ensure high‑quality code through unit testing, integration testing, and adherence to best coding practices.
• Design and develop scalable, secure, and high‑performance applications.
• Work with distributed systems and event‑driven architecture; hands‑on experience with Kafka is required.
• Develop and deploy applications on the Azure cloud platform, including Azure Kubernetes Services (AKS).
• Possess functional knowledge of online payment systems and acquiring (good to have).
• Exhibit a strong problem‑solving mindset and analytical thinking.
• Take ownership of end‑to‑end delivery — from design and development to deployment and support.
• Collaborate with cross‑functional teams to deliver business‑driven solutions.

Mandatory Skills

• Java
• Spring Boot
• Kafka

Contract: Freelance / Payroll solution

Eligibility: EU Residents / Independent VISA worked in Netherlands - NO SPONSORSHIP

Duration: 6 Months + extension

Location: Amsterdam, Netherlandsირებული

Conditions of work: Hybrid (2 days per week on site)

Minimum experience required: 7 years of experience

Rate: Depending on experience вале

Seniority level

• Mid‑Senior level

Employment type

• Contract

Job function

• Information Technology

Industries

• Engineering Services and Banking