Sr. II Backend Engineer, Mobile API

• Experience supporting large-scale consumer iOS and Android applications.
• Extensive professional experience in backend software development, including strong experience with PHP and a modern PHP framework.
• Proven experience designing and operating high-traffic RESTful or GraphQL APIs.
• Deep understanding of API contracts, versioning, authentication, authorization, caching, pagination, idempotency, and error handling.
• Strong experience optimizing the performance of APIs that integrate internal services and relational databases, including caching strategies, API monitoring, and RDBMS query optimization, particularly with MySQL or PostgreSQL.
• Experience implementing secure authentication and authorization using JWT or similar token-based approaches.
• Experience with distributed systems and asynchronous processing technologies such as RabbitMQ, Valkey, Redis, Kafka, or other queue- and event-driven architectures.
• Experience integrating mobile push notifications through Firebase Cloud Messaging and APNs.
• Experience creating comprehensive unit, integration, contract, and API testing strategies
• Experience with cloud platforms, containers, Docker, Kubernetes, CI/CD pipelines, and modern deployment practices, including GitHub Actions.
• Strong production experience with monitoring, logging, alerting, incident response, and root-cause analysis.
• Experience with feature flags, experimentation platforms, analytics tracking, and A/B testing.
• Demonstrated ability to lead projects across teams without relying on formal authority.
• Strong written and verbal communication skills, including the ability to explain technical tradeoffs to non-engineering partners.

• Strong understanding of mobile-specific constraints, including unreliable networks, latency, app-version fragmentation, backward compatibility, and phased releases.
• Full-stack experience with Vue and TypeScript and a modern frontend framework.
• Experience modernizing legacy services or decomposing monolithic applications.
• Experience influencing engineering practices across teams.

What distinguishes the Senior II level:

• Owns ambiguous, high-impact technical problems spanning multiple teams or systems.
• Defines technical direction instead of focusing only on assigned implementation.
• Anticipates dependencies and risks before they affect delivery.
• Creates reusable solutions and raises engineering standards beyond an individual project.
• Influences architecture and execution across Mobile, Backend, Web, and Platform teams.
• Develops other engineers through technical guidance, and knowledge sharing.

Success in this role:

• Mobile initiatives receive consistent backend leadership from discovery through release.
• API requirements and dependencies are identified early, reducing delivery delays.
• Mobile-facing services become more reliable, scalable, observable, and maintainable.
• Mobile and backend teams operate with clearer ownership and fewer coordination gaps.
• Architectural improvements create measurable benefits across multiple projects and teams.
• Competitive base salary, annual bonus, and equity package
• Competitive paid time off in addition to holiday time off
• A variety of healthcare insurance plans to give you the best care for your needs
• 401K matching above the industry standard

Work Authorization Candidates must be eligible to work in the United States. Slickdeals is an Equal Opportunity Employer; employment is governed on the basis of merit, competence and qualifications and will not be influenced in any manner by race, color, religion, gender (including pregnancy, childbirth, or related medical conditions), national origin/ethnicity, veteran status, disability status, age, sexual orientation, gender identity, marital status, mental or physical disability or any other protected status. Slickdeals will consider qualified applicants with criminal histories consistent with the "Ban the Box" legislation. We may access publicly available information as part of your application.

Slickdeals participates in E-Verify.

For more information, please refer to E-Verify Participation and Right to Work .

Slickdeals does not accept unsolicited resumes from agencies and is not responsible for related fees.