Currency

Java Developer

6 216 - 7 027 USDNet per month - B2B
Java

Java Developer

Java

Prosta 67, Warszawa

Consid

Full-time
B2B
Senior
Hybrid
6 216 - 7 027 USD
Net per month - B2B

Tech stack

    English

    C1

    Java (8–17)

    advanced

    REST API

    advanced

    Spring Boot

    advanced

    AWS

    regular

    Jenkins

    regular

    SQL/NoSQL

    regular

    Unit Testing

    regular

    ELK

    regular

    Docker

    regular

    Oracle

    regular

Job description

Java Developer


📍 Working mode: Hybrid – you’ll be expected to work onsite at the Consid office 2–3 times per week. 

💼 Contract: B2B.🗣️ 

Language: English – C1 (Preferred)


Role overview

We’re seeking a skilled Java Backend Developer (4–7 years of experience) to join our client's Automation team on a long-term project in the telecommunications domain. You’ll work at the intersection of backend development and test automation, building reliable, scalable microservices in a highly collaborative, DevOps-oriented environment.


What you’ll do

  • Design, build, and operate Spring Boot microservices and RESTful APIs that power customer-facing platforms.

  • Champion event-driven patterns and integrate with internal/external services via messaging (RabbitMQ; Kafka a plus).

  • Own services end-to-end in a DevOps model: CI/CD, observability, performance, reliability, security.

  • Deploy and run workloads on AWS and Kubernetes (infrastructure as code and GitOps practices welcome).

  • Ensure high quality through TDD/BDD, solid unit tests, contract tests, and continuous delivery.

  • Collaborate with cross-functional teams; document decisions, APIs, and runbooks clearly.


Must-have qualifications

  • 4–7 years hands-on with Java (8–17); strong knowledge of Spring Boot (3.x)/Spring 6.x.

  • Proven experience with microservices architecture and REST API design & implementation.

  • AWS experience (e.g., EC2, S3, RDS/IAM) and modern CI/CD (Jenkins, GitHub Actions, Docker, etc.).

  • Kubernetes for deployment/operations (EKS/Helm a plus).

  • Messaging systemsRabbitMQ (required); Kafka is a plus.

  • Strong testing mindset (JUnit 5, Mockito; bonus: Spock/BDD), including coverage and test automation in pipelines.

  • Databases: Oracle SQL (including performance tuning—joins, indexing, query optimization) and familiarity with MySQL/PostgreSQL.

  • Caching (Redis/Hazelcast) and resilience patterns (e.g., Resilience4j, circuit breakers, retries, timeouts).

  • Security best practicesOAuth2/JWT, input validation, and awareness of OWASP Top 10.

  • Monitoring/observability with logs/metrics/traces (ELK/Elastic, Kibana; Splunk a plus).

  • Comfortable on Linux (and Windows as needed); experience with Jira/Confluence.


Nice to have

  • Event-driven architecture at scale (streams, CDC, outbox).

  • Advanced Kubernetes topics (EKS, Helm, autoscaling, pod disruption budgets).

  • GitOps/IaC (Argo CD, Terraform).

  • Performance engineering (profiling, GC tuning, load testing).

  • Security hardening (mTLS, secrets management).

  • Interest or hands-on experience with AI/ML for testing/automation/agents.

  • JavaScript/TypeScript familiarity (Vue 3 or similar) for occasional tooling or internal UIs.

  • Resilience & reliability practices (SLOs, error budgets, chaos testing).


How you work

  • Open-minded, curious, and solution-oriented.

  • Comfortable owning services end-to-end and stepping outside formal roles when needed.

  • Strong communicator with a user- and business-focused mindset.

  • Thrives in non-hierarchical, high-performing teams and continuous improvement cultures.

Tech stack

    English

    C1

    Java (8–17)

    advanced

    REST API

    advanced

    Spring Boot

    advanced

    AWS

    regular

    Jenkins

    regular

    SQL/NoSQL

    regular

    Unit Testing

    regular

    ELK

    regular

    Docker

    regular

    Oracle

    regular

Office location

Published: 28.10.2025

About the company

Consid

Consid is a leading digital transformation and IT consulting company. They specialize in helping companies and organizations realize their visions through sustainable digitalization, offering services from strategy to im...

Company profile

Java Developer

6 216 - 7 027 USDNet per month - B2B
Summary of the offer

Java Developer

Prosta 67, Warszawa

Consid

6 216 - 7 027 USDNet per month - B2B
By applying, I consent to the processing of my personal data for the purpose of conducting the recruitment process. Informujemy, że administratorem danych jest Consid z siedzibą w Jönköping, ul. Lillsjöraden 22 (dalej jako "administrator"). Masz pra... MoreThis site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.