Senior Backend Engineer, Consumer Growth

This is a fully remote position, open to applicants in Portugal.

📋 Description

• Develop services that assist users in discovering Sword products, transitioning to paying members, realizing value, and maintaining engagement.

• Design, construct, and manage backend services and APIs that support the consumer experience across web, Android, and iOS platforms.

• Create subscription and payment functionalities, encompassing checkout integrations, linking purchases to accounts, managing entitlements, handling renewals, and overseeing subscription lifecycle events.

• Facilitate targeted experiences and controlled experiments utilizing feature flags, cohort targeting, and dependable experiment assignment.

• Execute event instrumentation and integrations for acquisition sources, funnel performance assessment, and customer behavior analysis.

• Collaborate with Product and Data teams to clarify hypotheses, outline measurement requirements, and evaluate outcomes post-launch.

• Enhance performance and reliability across essential journeys, prioritizing payment accuracy, data consistency, and recovery from failures.

• Take ownership of changes through design, implementation, testing, deployment, monitoring, and iterative improvements.

• Utilize AI tools to expedite development and troubleshooting while ensuring accuracy, security, and maintainability.

• Work in partnership with Product, Design, Data, Marketing, and mobile engineering teams.

⛳️ Requirements

• Proven experience in building and managing backend services in a production environment, with a strong proficiency in TypeScript.

• Solid foundation in API design, relational databases, data modeling, and automated testing.

• Knowledge of asynchronous processing and distributed systems, including retries, idempotency, and consistency principles.

• Ability to convert product objectives into practical technical solutions while making clear trade-offs between speed and long-term maintainability.

• Familiarity with product analytics and experimentation, particularly in how instrumentation influences the reliability of results.

• Experience in diagnosing production issues through logs, metrics, and tracing.

• Excellent communication skills, a collaborative mindset, and the capability to take ownership in a dynamic environment.

• Hands-on experience using AI in engineering workflows and critically assessing its outputs.

• Proficient in English, both written and spoken.

• At least Level 1 AI proficiency (Explorer), utilizing AI daily to enhance personal productivity.

• Nice to have: experience with consumer subscriptions, payment providers, or entitlement systems.

• Nice to have: experience with experimentation platforms, attribution, or lifecycle messaging.

• Nice to have: familiarity with Go, cloud infrastructure, and event-driven architectures.

🏝️ Benefits

• Additional benefits beyond the overall compensation package.

• Private company stock options where applicable (included in the total compensation estimate).

• Variable compensation, bonuses, or sales incentives where applicable (included in the total compensation estimate).

• Country-specific benefits (details provided separately).