# Senior/Staff Backend Engineer - Java

**Company:** [Oscilar](https://hotfix.jobs/companies/oscilar)
**Location:** Remote
**Role:** Backend Engineering
**Salary:** R$394k – R$574k/yr
**Experience:** 5+ years
**Skills:** Java, AWS, Microservices, Docker, Kubernetes, Kafka, ClickHouse, REST APIs, Jenkins, Git, Maven, Gradle, CI/CD, Distributed Systems, Security Best Practices
**Posted:** 2026-04-14

> Build and operate scalable, low-latency Java backend services for an AI risk decisioning SaaS platform. The role requires 5+ years of backend experience, AWS expertise, distributed-systems knowledge, and experience with microservices and deployment tooling.

## Job Description

## Responsibilities
- Design and develop scalable, high-performance, low-latency backend services using Java and AWS technologies.
- Collaborate with product management, frontend, and QA teams to define technical requirements and ensure smooth platform integration.
- Optimize existing services for performance, reliability, and maintainability.
- Identify and resolve system bottlenecks, ensuring efficient resource utilization and stability.
- Implement best practices for code quality, testing, and deployment, including CI/CD pipelines.
- Monitor backend service health and performance and mitigate potential issues.
- Provide technical guidance and mentorship to junior team members.

## Requirements
- Bachelor's or master's degree in Computer Science, Software Engineering, or a related field.
- 5+ years of backend software development experience focused on Java and AWS technologies.
- Experience building and operating low-latency, high-scale services in distributed environments.
- Proficiency in Java and its ecosystem and related frameworks.
- Knowledge of microservices architecture, Docker, Kubernetes, Kafka, and ClickHouse.
- Familiarity with RESTful API design and security best practices.
- Experience with Jenkins, Git, Maven, Gradle, CI/CD, and agile development methodologies.
- Strong problem-solving, attention to detail, communication, and independent collaboration skills.

## Compensation and Benefits
- Competitive salary; candidates are hired as CLT.
- Stock options.
- Medical and dental coverage for the employee and dependents.
- Life and long-term disability insurance.
- Monthly meal allowance through a Caju Card.
- Remote-first culture.
- Family-friendly environment, regular team events, and offsites.
- Professional development opportunities.
- Opportunity to help protect online transactions and make the internet safer.

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**Canonical:** https://hotfix.jobs/jobs/ec9ad8f9-339c-4874-882a-922aa553054c