X-FLOW Tech Stack

Mobile coloring game with player monetization and support scaling focus

Mobile Gaming Apps ㅤ 51–200 employees Founded 2018 Privately Held

X-FLOW operates Happy Color®, a large-scale mobile coloring app, with an engineering-driven tech stack built on TypeScript, React, and Kubernetes. The company is mid-scale (51–200 employees) and actively shifting from outsourced support to an internal team while building automation and data pipelines—a pattern that suggests operational maturation beyond pure game development. Their infrastructure spans both ad networks (Google Ads, Meta, AppLovin, ironSource, Unity Ads) and backend systems (PostgreSQL, Kafka, ClickHouse), indicating both user acquisition and analytics rigor.

Tech Stack 45 technologies

Core StackTypeScript JavaScript Playwright Cypress GitLab CI/CD Docker Kubernetes Google Ads PHP Laravel React PostgreSQL MySQL Redis Kafka ClickHouse Prometheus Grafana OpenTelemetry Sentry OpenAPI Swagger HTML5 CSS Unity Ads AppLovin ironSource Meta Redux Toolkit Ant Design+15 more

What X-FLOW Is Building

◆Challenges

Transitioning outsourced support to internal
Optimizing support operations
Increasing support efficiency
Managing outsourced support tickets
Speeding up bug resolution
Maintaining knowledge base
Increasing test coverage
Reducing technical debt
Performance marketing inefficiency
Scaling opportunities

▲Active Projects

Happy color
Transitioning outsourced support to internal team
Implementing automation and ai tools
Optimizing support operations
Test framework development
Automation roadmap
Ltv forecasting models
User behavior signals for ua
Data pipelines

Hiring Activity

Accelerating9 roles · 4 in 30d

Department

Engineering

Marketing

Support

Seniority

Mid

Lead

Senior

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About X-FLOW

X-FLOW is a mobile game developer founded in 2018, based in Cyprus, known for Happy Color®—a coloring application with significant player scale. The company operates across 51–200 employees and is hiring primarily in Indonesia. Product focus includes the coloring app itself, alongside monetization and user retention through ad network integrations and UA optimization. Operations are undergoing internal transformation: the team is building an in-house support function, implementing test automation frameworks, and developing LTV forecasting and user behavior models to improve both operational efficiency and marketing ROI.

Headquartersㅤ

Company Size51–200 employees

Founded2018

Hiring MarketsIndonesia

Frequently Asked Questions

What tech stack does X-FLOW use?

TypeScript, React, Node.js/Laravel backend, PostgreSQL/MySQL/Redis databases, Kafka/ClickHouse for analytics, Docker/Kubernetes for deployment, and monitoring via Prometheus/Grafana/OpenTelemetry.