Senior Software Engineer - I - Backend

About the role

We are looking for a Senior Software Engineer I (Backend) who can take a leading role in architecting, developing, and optimizing scalable, multitenant backend systems. This role will be critical in driving major new releases in 2026 and beyond. You will act as a key technical expert for backend initiatives, owning everything from day-to-day operations and system reliability to designing and delivering large-scale, reusable features.

Responsibilities

• Architect for multi tenancy and reusability:
• Design and implement secure, efficient multi tenant architectures that support multiple clients, regions, or business units, while promoting modular, reusable components to speed up development and reduce duplication.
• Co-lead backend development:
• Serve as a core technical leader for backend systems in this Telco application, quickly ramping up on the existing architecture and contributing to scalable design decisions and execution.
• Operate and improve production systems:
• Troubleshoot across application, infrastructure, and database layers, while improving system reliability, performance, and observability (e.g., Dynatrace or similar tools).
• Deliver major features:
• Lead backend implementation of large, business-critical features, balancing fast delivery with long-term maintainability and architectural soundness.
• Work with infrastructure and data:
• Manage Kubernetes-based deployments, ensure strict tenant-level data isolation and security, and maintain/optimize databases such as PostgreSQL, Oracle, and MS SQL.
• Raise the engineering bar:
• Drive improvements in code quality, CI/CD practices, monitoring, and documentation to enhance overall engineering standards.
• Collaborate with stakeholders:
• Partner closely with product, frontend teams, and other backend engineers to translate business requirements into scalable, reusable technical solutions.

Requirements

• Experience: 5+ years in backend engineering.
• Architecture & Design: Hands-on experience with multitenant systems, SaaS platforms, and reusable shared services.
• Core stack: Strong experience in Java or a similar language.
• Databases: Experience with PostgreSQL, Oracle, or MS SQL, including data partitioning and tenant isolation concepts.
• Experience with Kubernetes and containerized environments.
• Strong background in maintaining and evolving production systems.
• Solid debugging and query optimization skills.
• Production & troubleshooting:
• Experience with monitoring/observability tools (e.g., Dynatrace) and resolving complex production issues.
• System ownership mindset:
• Comfortable acting as a key technical owner, collaborating on architecture, and driving initiatives end-to-end while continuously improving systems.
• Experience in Telco, high-availability, or high-throughput environments.
• Strong understanding of API-first design and microservices architecture.
• Familiarity with event-driven systems (Kafka, RabbitMQ).
• Exposure to cloud platforms (AWS, Azure, GCP) and on-premise environments.

Benefits

Additional Information

We don't think about job roles in a traditional way. We are anti-silo. Anti-career stagnation. Anti-conventional. Beyond ONE is a digital services provider radically reshaping the personalised digital ecosystems of consumers in high growth markets around the world. We're building a digital services aggregator platform, with a strong telco foundation, and a profitable growth strategy that empowers users to drive their own experience-subscribe once, source from many, and only pay for what you actually use. Since being founded in 2021, we've acquired Virgin Mobile MEA, Friendi Mobile MEA and Virgin Mobile LATAM (with 6.5 million subscribers) and 1600 dedicated colleagues across Chile, Colombia, KSA, Kuwait, Mexico, Oman, Pakistan and UAE. To disrupt for good takes a rebellious spirit, a questioning mind and a warm heart. We really care about how to get things done and not who manages who. We benefit from our diversity, and together, we disrupt the way we and others thinking about our lives for good. Do you want to exchange ideas, learn from each other and leave your mark on our journey? This is the place for you.

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