Scrambly

About us
Scrambly is the most rapidly growing Italy-based tech startup operating in the performance marketing and rewarded advertising space. Our platform helps users discover and test new apps, games, and services - and get rewarded for it. With millions of installs, we’re focused on scaling our mobile product and building a seamless user experience.

Now we are looking for a Senior Backend Engineer to join the team building the core systems behind Scrambly. In this role, you will be solving complex scalability challenges for a platform serving millions of users globally.

Your focus will be on writing robust, high-performance code and bridging the gap between product requirements and technical reality. You will work within a modern tech stack to ensure our systems remain fast, reliable, and easy to maintain as we grow.

Key Responsibilities

• Design & Implementation
  • Design, build, and maintain high-performance, scalable backend services and APIs using Node.js (NestJS)
  • Write clean, maintainable, and testable code that serves as a benchmark for the team
  • Ensure seamless integration between backend services and frontend applications
• Architecture & Technical Strategy
  • Propose and implement architectural improvements for core systems
  • Design complex features with a focus on long-term scalability, extensibility, and maintainability
  • Apply best practices for distributed systems and RESTful API design
• Mentorship & Code Quality
  • Champion high code quality and engineering best practices across the team
  • Mentor other engineers through constructive code reviews, technical guidance, and pair programming
  • Foster a culture of technical curiosity and continuous improvement
• Performance & Infrastructure
  • Monitor system performance, identify bottlenecks, and proactively resolve reliability issues
  • Collaborate with DevOps to ensure smooth CI/CD pipelines, deployments, and infrastructure reliability
  • Work with containerization and orchestration tools to manage application lifecycles
• Cross-functional Collaboration
  • Work closely with Product, Design, Frontend, and QA teams to deliver high-quality features
  • Translate product requirements into robust technical specifications
  • Communicate technical constraints and trade-offs clearly to non-technical stakeholders

Requirements

• 5+ years of software engineering experience, with a strong focus on backend development
• Strong proficiency in Node.js and modern frameworks like NestJS
• Excellent system design skills and a solid understanding of backend architecture, RESTful APIs, and distributed systems
• Experience with cloud platforms (GCP preferred; AWS or Azure acceptable), containerization (Docker), and orchestration/IaC (Kubernetes, Terraform, Helm)
• Proficiency with relational (e.g., PostgreSQL), NoSQL (e.g., Redis) databases, and message queues (e.g., RabbitMQ, GCP Pub/Sub, Redis Pub/Sub)
• Strong communication and collaboration skills, comfortable working in a fast-paced team environment
• 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

Nice to Have

• Experience in a B2C startup that has scaled to millions of users
• Basic proficiency in Go; able to read, write, and maintain basic Go services without starting to learn from scratch
• Hands-on experience with React, capable of implementing basic UI features or internal tools independently

What We Offer

• Work on systems where performance optimizations translate to immediate user impact for millions of users
• A culture of code reviews, knowledge sharing, and mentorship where the best idea wins
• A fast-paced environment where your code quickly translates into real user value
• We value the stability and value of what you ship, not just the number of lines of code
• Full-time & fully remote position
• 15 days of paid vacation days
• 5 days of paid days off
• 5 days of paid sick leave
• Maternity/Paternity leave
• National holidays by the country of your stay

About the Role
We are looking for a skilled React Native Engineer to help build and scale Scrambly's mobile app for iOS and Android. In this role, you will own the end-to-end implementation of key features for a high-traffic platform serving millions of users globally. You will be responsible for translating product requirements into robust software, ensuring that our mobile experience remains user-centric and competitive.

Your primary focus will be on writing performant TypeScript code within a modern React Native stack. You will play a crucial role in maintaining app stability, keeping the application fast, reliable, and easy to maintain. This position offers a strategic opportunity to impact business metrics directly by reducing technical debt and optimizing application performance.

Success in this role requires active cross-functional collaboration. You will work directly with Backend, QA, and Product teams to clarify requirements, solve complex engineering challenges, and deliver a seamless UX. Additionally, you will contribute to architectural discussions, helping to shape the technical direction of the product alongside senior engineers.

Key Responsibilities

• Design & Implementation:
  • Develop and maintain high-quality cross-platform applications using React Native and TypeScript
  • Build reusable UI components and highly performant lists (utilizing tools like FlashList or FlatList) that strictly adhere to design specifications
  • Integrate mobile apps with backend services via RESTful APIs and WebSockets to ensure real-time data synchronization
  • Debug platform-specific issues using Xcode and Android Studio, and write or modify native modules (Swift/Kotlin) when standard libraries are insufficient
• Engineering Standards & Quality:
  • Champion code quality by writing clean, testable TypeScript code and actively participating in peer code reviews to ensure standards for readability and maintainability are met
  • Contribute to the long-term health of the codebase by identifying and fixing technical debt and improving overall test coverage
  • Participate in architectural discussions, offering input on state management (e.g., Redux Toolkit, Zustand) and navigation patterns to improve scalability
• Performance, Reliability & Collaboration:
  • Monitor production stability using tools like Sentry or Crashlytics, proactively identifying and fixing crashes or errors
  • Optimize app performance by focusing on specific metrics such as frame rates, memory usage, app size, and battery consumption
  • Assist in maintaining CI/CD pipelines to ensure smooth and reliable releases to the App Store and Google Play
  • collaborate effectively with non-technical stakeholders to explain technical constraints and propose viable solutions

Requirements

• 3+ years of professional software engineering experience, with at least 2 years strictly focused on React Native development
• Strong proficiency in TypeScript and the React Native ecosystem (CLI, Hermes, debugging tools)
• Solid understanding of iOS and Android build systems (Gradle, Pods, signing/provisioning). You must have the ability to read native code (Swift/Kotlin) to debug platform-specific issues
• Familiarity with modern React patterns (Functional Components, Hooks) and state management libraries (Redux Toolkit, Zustand, or TanStack Query)
• Experience writing unit tests using Jest and familiarity with End-to-End (E2E) testing concepts
• Ability to explain technical concepts clearly to diverse teams
• 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

Nice to Have

• Experience launching and maintaining a B2C app with 100k+ Monthly Active Users (MAU)
• Hands-on experience writing Native Modules or JSI/TurboModules from scratch
• Familiarity with mobile analytics tools (Segment, Amplitude) and A/B testing implementation
• Experience with automation tools like Maestro or Appium
• Knowledge of backend fundamentals (Node.js) to debug API integrations effectively

What We Offer

• Your code will impact millions of users globally. Performance optimizations you implement will translate into immediate value and improved user experience
• Work with the latest React Native tools and standards (TypeScript, Hermes, etc.) without being bogged down by legacy spaghetti code
• A collaborative environment with rigorous code reviews and knowledge sharing - we value the best idea, regardless of title or seniority
• A high level of ownership where you can see your features go live quickly in a fast-paced environment

About the Role
At Scrambly, we are revolutionizing the rewarded advertising space, currently serving over 4 million users in the USA. Over the past few years, we've grown rapidly, and we’re looking for incredible people to help us continue pushing boundaries and delivering top-tier digital solutions.

As our Delivery Manager, you will be the operational backbone of Scrambly’s product and engineering organization. You will work closely with the CTO, engineering leads, product, QA, and design teams to ensure that all initiatives — from core features to experiments — move from idea to production efficiently and with high quality.

It is a high-impact, execution-focused position for someone who thrives in fast-paced environments and enjoys building structure, removing chaos, and driving teams toward effective delivery. You will define and run processes, coordinate releases, lead estimation and planning, ensure documentation hygiene, and help maintain smooth operational execution.

Key Responsibilities

• Execution & Delivery Management
  • Own and run the end-to-end delivery process across backend, frontend, mobile, QA, and design teams
  • Lead sprint planning, backlog grooming, refinement sessions, and daily coordination to maintain clarity and momentum
  • Ensure accurate estimations, proper task breakdowns, and realistic commitments.
  • Track progress, identify delivery risks early, and remove blockers before they impact timelines
  • Maintain a predictable release schedule, coordinating tightly with engineering, QA, and product
• Operational Excellence
  • Build, maintain, and refine delivery workflows, documentation standards, and internal processes
  • Ensure clarity and consistency in task descriptions, acceptance criteria, and requirements
  • Maintain a structured, organized backlog in collaboration with product and engineering leads
  • Establish clear communication flows and streamline handoffs between teams
  • Support post-release reviews, retrospective insights, and continuous improvement initiatives
• Cross-Functional Coordination
  • Facilitate alignment between product priorities, engineering capacity, and design readiness
  • Ensure teams have the right information, context, and materials at every stage of delivery
  • Coordinate closely with designers to ensure UI/UX assets arrive on time and match feature scope
  • Work with QA to ensure test coverage, clear acceptance criteria, and quality in every release
  • Support operational tasks that keep the development organization running smoothly day-to-day
• Team Support & Structure
  • Promote accountability, clarity, and transparency across teams
  • Improve execution rhythm by helping teams stay organized and focused
  • Identify inefficiencies, bottlenecks, and gaps, and find process improvements
  • Help onboard new team members through clear workflows, documentation, and structure

Requirements

• 3+ years of experience in Delivery Management, Project Management, Product Operations, or a similar role in a fast-paced tech environment
• Strong understanding of software development processes across backend, frontend, and mobile
• Hands-on experience running sprints, planning releases, managing estimations, and coordinating multidisciplinary teams
• Excellent organizational and communication skills — able to create clarity for others and manage multiple parallel streams of work
• Highly operational mindset — you thrive on execution, structure, and efficiency
• Ability to work closely with engineering leads, product teams, designers, and executives
• Experience in startups or high-velocity environments strongly preferred
• Proficiency with project management tools (e.g., ClickUp, Jira, Notion, Linear, or similar)
• Strong English communication skills (B2+); ability to work in multicultural teams

What We Offer

• A critical execution-focused role in a global digital product used by millions of users
• A chance to build and shape the delivery and operational processes of a fast-growing company
• High ownership, real impact, and an opportunity to influence how Scrambly ships product