▷ Inicio Inmediato: Senior Backend Developer

About The Company
Scrambly is one of the fastest-growing adtech startups in the world, featured in the AppsFlyer Performance Index and Singular ROI Index in just 3.5 years. We're growing 250%+ YoY across revenue, team, product, and technology
- fully bootstrapped and profitable. Our mission is to build a true alternative to traditional app stores
- fueled by rewards and data
- and create a new, performance-first growth engine for mobile app advertisers.

About The Role
We are looking for a Senior Backend Engineer to join the team building the core systems behind Scrambly. In this role, you will work across two key areas: user-facing product systems
- solving complex scalability challenges for a platform serving millions of users globally
- and the internal platform, covering admin systems, tooling, and back-office automation that power our operations team. Your focus will be on writing robust, high-performance code and bridging the gap between product requirements and technical reality. Design, build, and maintain highly scalable Node.
Js (NestJS) RESTful APIs and distributed systems. Ensure seamless frontend integration and drive long-term architectural improvements.
Quality & Mentorship: Champion clean, testable code standards and foster a culture of technical curiosity by mentoring engineers through code reviews and pair programming.
Infrastructure & Performance: Monitor system reliability, resolve bottlenecks, manage containerized application lifecycles, and partner with DevOps to optimize CI/CD pipelines.
RequirementsExperience: 5+ years of software engineering experience, with a strong focus on Node.
Js and modern frameworks like NestJS.
Excellent system design skills and a solid understanding of backend architecture, RESTful APIs, and distributed systems.
Infrastructure: Experience with cloud platforms (GCP preferred; AWS or Azure acceptable), containerization (Docker), and orchestration/IaC (Kubernetes, Terraform, Helm). Databases & Messaging: Proficiency with relational (e.
PostgreSQL), NoSQL (e.
Redis) databases, and message queues (e.
RabbitMQ, GCP Pub/Sub, Redis Pub/Sub). Frontend Autonomy: Hands-on experience with React, capable of implementing basic UI features for internal tools independently.
English: Upper-Intermediate or higher (B2/B2+, written and spoken). You need to be able to communicate clearly in English to work effectively in an international team and participate in architectural discussions.

What We Offer
Work on systems where performance optimizations translate to immediate user impact for millions of users.
Full-time & fully remote position.
National holidays based on the country of your stay. #