FlipaClip - Backend Tech Lead

ABOUT FLIPACLIP FlipaClip https://flipaclip.com/es/ is the world’s biggest animation app with over +90 million lifetime installs. FlipaClip turns any mobile device into an animation studio. Animated movies and shows require massive budgets, years of production, or the approval of a handful of studios to exist. That’s how the industry has worked for decades. Very soon, a blockbuster animated movie will be entirely produced by a 15-year old in her parent’s basement. On a phone. And it will be made and distributed for $0. We are on it. KEY RESPONSIBILITIES - Own the delivery and long-term operation of high-impact backend systems, from architecture to production. - Set and evolve backend processes, engineering standards, and technical best practices. - Define and actively use KPIs covering system reliability, development speed, data quality, and error rates. - Make system-level architectural decisions and technical tradeoffs with a clear understanding of impact. - Establish automated testing and validation processes that reduce regressions and operational risk. - Introduce AI-assisted development workflows where they increase leverage, with strong validation and safety mechanisms. - Communicate progress, risks, and technical decisions clearly across engineering and product stakeholders. QUALIFICATIONS - 5+ years building and maintaining with AWS - Demonstrable experience delivering high-impact backend systems and projects that operate successfully in production - Strong experience building backend services for mobile applications (iOS/Android) - Ownership: Strong sense of ownership, strategic thinking, and a solution-first mindset - Management: Creating structure where needed. Processes, standards, and objectives that teams actually follow. - Product-minded: Able to balance engineering quality with pragmatic trade-offs to move fast. - Customer-obsessed: Making technical decisions with a clear understanding of how they affect customers, product quality, and our overall business. - Solid experience working with Node.js and TypeScript - Strong understanding of modern React frameworks - Experience with Docker and containerized deployments - Solid understanding of RESTful API design and implementation - Interest in or experience with Generative AI and related technologies It is a MUST to have... - Owned analytics infrastructure at a consumer or product-led company. Has taken Amplitude, Mixpanel, or Segment from messy to trustworthy. Used RevenueCat or other subscription tools. Used Appsflyer or other attribution tools. Defined event taxonomy, governance, reconciliation. - Shipped experimentation infrastructure. A/B test data quality, variant assignment, SRM detection, trustworthy success metrics. - Backend engineering depth on user or identity systems. Python or Node production. Debugged UUID, device ID, or session identity across login, logout, multi-device, reinstall. - Has led 1 to 3 engineers. Set technical direction, upskilled non-data engineers. - SQL-fluent at modeling level. Evidence to look for: Designed event schemas or metrics layers others relied on. NICE TO HAVE - Hands-on experience working on AI/ML or LLM-based products. - Experience with NestJS framework - Python experience, particularly with Apache Airflow or similar ETL tools - Knowledge of Firebase (Authentication, Firestore, Remote Config) - Experience with Infrastructure-as-Code (Pulumi or Terraform) - Familiarity with observability tools (OpenTelemetry, Signoz, or similar) - Experience with video streaming technologies (HLS, MediaConvert) - Knowledge of analytics platforms (Amplitude, MoEngage, or similar) - Experience with ElasticSearch or similar search technologies - Understanding of mobile app backend requirements (iOS/Android) - Experience with subscription/payment integrations (Purchasely, RevenueCat, IAP) OUR TECH STACK Backend - Node.js (14/16) with NestJS and Restify frameworks - Python 3.9 for ETL and data pipelines - Apache Airflow 2.7.3 for workflow orchestration - JWT-based authentication - Sequelize ORM Frontend - Next.js 15 with App Router - React 18/19 with TypeScript - Tailwind CSS for styling - Zustand for state management - SWR for data fetching - Radix UI component library - Infrastructure & DevOps - AWS (ECS Fargate, S3, RDS, ElastiCache, SQS, CloudFront, MediaConvert) - Docker and Docker Compose - Pulumi for Infrastructure-as-Code - GitHub Actions for CI/CD - Vercel for frontend deployments Data & Storage - MySQL and PostgreSQL (AWS RDS) - Redis (AWS ElastiCache) - ElasticSearch for search functionality - Firebase Firestore - AWS S3 and Cloudflare R2 for asset storage Observability - Signoz with OpenTelemetry (OTLP) - Winston for structured logging - Slack webhooks for alerting THE SELECTION PROCESS - Silver.dev Recruiter Screen - Silver.dev Live Coding Screen - Behavioral Screen with FlipaClip's CAO - Work Experience Overview + some Technical Discussion with FlipaClip's COO - Final Screen with FlipaClip's CEO