Aptonet Inc
Java Software Engineer
Skills
5 days ago
Share this opportunity
Share this opportunity to other talents of your network:
✓ Offer them a visibility boost with clients.
✓ Help your contacts find their next job.
Important information
Contract type:
Freelance / Contract
Location:
Brazil
Work mode:
Onsite
Published on:
16 October 2026
What they need
About the job
We are seeking a Full Stack Software Engineer to develop and enhance modern cloud-native applications using Java, React, and Kubernetes-based technologies. The ideal candidate will have strong backend and frontend development skills, experience with distributed systems, and a passion for building scalable, secure, and high-performing enterprise solutions.
Responsibilities
- Design, develop, and maintain full-stack applications using Java, Spring Boot, React, and TypeScript.
- Build and support microservices and distributed workflows in cloud-native environments.
- Design and optimize PostgreSQL databases, data models, and application performance.
- Develop modern user interfaces using React, TypeScript, and responsive design principles.
- Implement workflow orchestration solutions using Temporal IO or similar platforms.
- Deploy and support applications in Kubernetes and OpenShift environments.
- Integrate applications with AWS services including S3, SES, and SNS.
- Contribute to CI/CD pipelines, testing strategies, code quality initiatives, and automation efforts.
- Collaborate with cross-functional teams to deliver secure, scalable, and reliable solutions.
- Participate in code reviews, architecture discussions, and continuous improvement initiatives.
Required Skills
- 5+ years of experience developing enterprise applications with Java.
- Strong experience with Java 17+ and Spring Boot microservices.
- Deep knowledge of PostgreSQL, database design, query optimization, indexing, and Flyway migrations.
- Experience building applications with React and TypeScript.
- Knowledge of modern frontend development using Vite, React Router, and API integrations.
- Experience with workflow orchestration platforms such as Temporal IO or Cadence.
- Hands-on experience with Docker, Kubernetes, OpenShift, and containerized applications.
- Experience with CI/CD pipelines and modern DevOps practices.
- Strong understanding of REST APIs, distributed systems, and software design principles.
- Experience with Git, automated testing, and code quality tools.
Preferred Skills
- Experience in highly regulated industries requiring audit trails, compliance controls, or governance requirements.
- Experience with AWS cloud services.
- Knowledge of Istio Service Mesh.
- Experience with Playwright, Vitest, JUnit, Mockito, SonarQube, or similar testing and quality tools.
- Experience designing highly scalable and resilient cloud-native architectures.
Other offers great for you!
These companies are also looking for great profiles
NGC x OPTIMA
Ingénieur Logiciel embarqué
Freelance
Cergy, France
Hybrid, Onsite
Skills
1 month ago
Quick apply
LeHibou
Analyste / Ingénieur logiciel Wealth
550€ / jour
Freelance
Luxembourg
Hybrid
Skills
5 days ago
Quick apply
Salutech
Ingénieur Logiciel IA
Freelance
Paris, France
Onsite, Hybrid
Skills
5 days ago
Quick apply
No company information available.