Lead Backend Engineer

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October 3

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Opal

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Wellness

Opal is a company that focuses on helping people manage their screen time effectively to enhance productivity, maintain mental health, and improve overall life balance. With apps available for iPhone and macOS, Opal offers a range of features such as blocking distracting apps and social media, setting usage limits, and tracking screen time to encourage mindfulness and focus. It claims significant improvement in productivity, reduced distractions, and better mental health outcomes for its users. Over 4 million users have joined the platform to take control of their digital habits and reclaim time for more meaningful activities.

2 - 10 employees

🧘 Wellness

💰 $2.6M Pre Seed Round on 2021-01

📋 Description

• Lead backend architecture: Own the design and evolution of our backend infrastructure, balancing Firebase today with next-generation stack plans. • Build scalable APIs: Create efficient, well-structured, backward-compatible APIs optimized for mobile clients. • Design data models: Build scalable schemas to support rapid product iterations and growth to 10M+ DAUs. • Ensure operational excellence: Define SLOs/SLIs, implement monitoring, logging, tracing, alerting, and lead incident response and root-cause analysis. • Drive security & compliance: Ensure authentication, encryption, and GDPR compliance from day one. • Document & evangelize: Maintain backend architecture documentation and workflows, enabling smooth onboarding and collaboration. • Collaborate cross-functionally: Partner with mobile and product teams, clearly explaining trade-offs and inviting constructive debate. • Balance simplicity and scale: Build what’s needed today while planning for future growth. • Maintain CI/CD & IaC: Improve pipelines and Infrastructure as Code practices. • Contribute to AI & notification features: Support AI-powered and silent push notification flows that enhance mobile experiences.

🎯 Requirements

• Proven experience designing and scaling backend infrastructure for millions of users. • Hands-on experience building cost-efficient, secure, and reliable systems. • Strong JavaScript/TypeScript expertise. • Experience building and scaling backend infrastructure for large-scale consumer or mobile-first products. • Hands-on with cloud platforms (preferably GCP) and building scalable services. • Experience with Firebase (Auth, Firestore, Cloud Functions) is a plus. • Proficiency in SQL & NoSQL databases and designing scalable data models. • Experience with CI/CD pipelines & IaC. • Knowledge of API versioning and backward-compatibility strategies. • Familiarity with security, privacy, and compliance best practices.

🏖️ Benefits

• Mission-Driven Impact • Shape the foundation • Collaborative Culture • Meaningful challenges • Well-Supported