RYZ Labs is looking for a Staff Software Engineer (Elixir) to join one of our client’s teams in the sports merchandising industry! We’re looking for a Staff Software Engineer to work across the client’s card technology platform and help connect multiple product and engineering domains. This is a hands-on role focused on building, evolving, and maintaining large-scale systems while driving technical decisions, improving engineering practices, and helping teams work more effectively. Basic Qualifications: - 10+ years of professional software engineering experience. - Strong proficiency in Elixir and functional programming concepts. - Proven experience building and maintaining production applications with Elixir and Phoenix . - Experience owning and evolving large systems spanning multiple services, repositories, and teams. - Strong understanding of software architecture and experience driving technical decisions across teams. - Experience with Phoenix LiveView is strongly preferred. - Strong PostgreSQL knowledge, including query optimization and performance tuning. - Experience building data ingestion pipelines or ETL processes , particularly from third-party data sources. - Experience with event-driven architectures , message queues, and cross-service data consistency. - Strong problem-solving and debugging skills, particularly with complex, numerical, or data-intensive systems. - Experience working with Git, code reviews, automated testing, and collaborative development practices. - Excellent written and verbal communication skills, with the ability to influence technical direction across teams. - Experience working effectively in highly autonomous and primarily remote environments. What makes you stand out: - Experience with AWS services such as SQS/SNS, S3, Athena, or Glue. - Experience deploying and operating services on Kubernetes/EKS .

- Experience with event sourcing, CQRS, or schema-versioned events such as Protobuf or Avro.



- Experience building systems from scratch and later evolving or handing them off to other teams. - A demonstrated track record of being a force multiplier , improving engineering productivity through mentoring, pairing, code reviews, tooling, or technical leadership. - Experience leading through influence rather than formal authority. - Experience diagnosing and resolving complex production issues in systems you did not originally build. Key Responsibilities: As a Staff Software Engineer, you will work across the platform and product ecosystem, helping ensure systems remain scalable, reliable, and easy for teams to evolve. Your responsibilities will include: - Owning and evolving complex systems that span multiple teams, services, and repositories. - Driving architecture discussions and facilitating high-impact technical decisions. - Designing, implementing, testing, deploying, and maintaining production systems. - Conducting thorough, high-volume code reviews across repositories to ensure quality, share context, and unblock teams. - Pairing with and mentoring engineers across teams to improve technical capabilities and productivity. - Diagnosing and resolving complex production issues, including algorithmic and data-correctness problems. - Building and maintaining data ingestion pipelines, event-driven services, and cross-service infrastructure. - Breaking down large, ambiguous, cross-team initiatives into well-sequenced projects and tasks. - Improving shared engineering practices and infrastructure, including CI/CD, developer tooling, observability, testing, and security. - Documenting system architecture and creating runbooks to facilitate knowledge sharing and operational excellence. - Collaborating closely with engineering leads and business stakeholders to translate ambiguous problems into effective technical solutions. - Building user-facing features end-to-end when needed, from data models through Phoenix LiveView interfaces.

📌 Staff Software Engineer (Elixir) (Argentina)
🏢 Ryz Labs
📍 Argentina