SOFTWARE ENGINEER / KOTLIN BACKEND (REMOTE)

Portuguese company hires for remote work

Location: Brazil

Language Requirements: Fluent Portuguese and English

Seniority: 5+ years

Client: Global Social Media & Tech Platform

Instructions: Please send your CVs in English and make sure to include all skills and experience that match the requirements of the opportunity. This will significantly increase your chances of success.

We’re on the lookout for a Software Engineer (Kotlin Backend) ready to take on large-scale challenges in one of the world’s biggest social media platforms — a place where petabytes of data flow through the system every single day.

You'll join an R&D team that thrives on innovation, engineering excellence, and cutting-edge technologies. Together, you’ll design and enhance the infrastructure behind mission-critical data systems used by hundreds of millions of users worldwide.

💼 What You’ll Be Doing

• Build and enhance scalable, high-performance data processing platforms using Kotlin and big data tools.
• Work on fine-grained access control systems for large-scale platforms using Spark, Flink, PyTorch, Ray, and other ML/AI frameworks.
• Optimize and customize open-source tools like Apache Spark to handle challenges at extreme scale.
• Design, build, and maintain cloud-native pipelines for business-critical data.
• Troubleshoot, evaluate, and streamline complex data systems.
• Collaborate closely with cross-functional teams and stakeholders to deliver technical solutions aligned with business goals.
• Conduct code reviews, contribute to standards and best practices, and mentor peers.

🧠 What You Bring

• 5+ years of software engineering experience, with solid Java and Kotlin skills.
• 3+ years building and maintaining scalable big data platforms.
• Strong knowledge of Spark, Hadoop, Flink, and data formats like Parquet/ORC.
• Deep understanding of OOP, software architecture, and system design.
• Comfortable documenting, communicating, and presenting complex ideas clearly.
• Passionate about streamlining systems and solving complex technical problems.
• Fluent in English and Portuguese.
• Location: Brazil only — this is a fully remote role.

🌟 Nice to Have

• Experience with AWS and Kubernetes (K8s).
• Contributions to open-source communities or experience customizing OSS tools.

If you're ready to build at scale, innovate with impact, and grow within a global tech environment — we’d love to hear from you.

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