Jobs at X-FLOW

Design, develop, and scale Go-based backend microservices, APIs, and distributed systems. Responsibilities include database design and optimization, event-driven integrations, cloud infrastructure, CI/CD, testing, observability, security, reliability, and architectural documentation. The role works with PostgreSQL, Redis, Kafka, AWS, Docker, Kubernetes, and related technologies while participating in code reviews, performance optimization, and system design.

Create motion graphics, animations, and video ads for paid social and advertising networks. Collaborate with Creative Producers and designers to develop visual concepts, animate static assets, and adapt and export content to meet network requirements and production workflows. The role requires attention to detail, responsiveness to feedback, and a portfolio demonstrating motion design skills, with opportunities for professional growth in a flexible creative team.

Develop and optimize mobile ad monetization strategies, increase advertising revenue, conduct A/B tests, manage ad network and vendor relationships, negotiate placements, collaborate with product, marketing, and development teams, and analyze market trends and monetization metrics.

Lead design and implementation of end-to-end Flutter test automation across unit, widget, integration, golden/visual regression, and API/contract tests. Build test infrastructure in Dart/Flutter, integrate tests into CI/CD with quality gates, monitor app observability and performance, conduct code reviews, and define device matrix and testing standards to ensure app stability and reliability.

Own full-cycle recruiting for technical, product, and business-critical roles. Partner strategically with leaders to anticipate hiring needs, build proactive talent pipelines, source passive candidates, and manage complex, high-volume hiring. Analyze recruitment funnels, improve processes, provide talent-market insights, and challenge hiring assumptions while maintaining strong candidate experience and quality.

Develop and maintain high-performance Flutter apps for Happy Color and new projects. Implement adaptive UIs, pixel-perfect animations, modular architectures, performance tuning, tests, and integrate Firebase, analytics, IAPs, and push notifications while collaborating with designers and backend engineers.

Create high-fidelity, pixel-perfect UI designs for mobile game features, including icons, interface elements, states, and variations. Collaborate with product managers, designers, and developers through iterative feedback cycles. Explore visual directions and current mobile market trends. UX wireframing, feature concept development, and basic animation are optional responsibilities.

The UA Manager will lead user acquisition campaigns across various channels, analyze performance, and drive growth strategies in mobile game development.

Provide timely email and app-store support via Zendesk, reply to reviews, coordinate with Dev/QA and outsourcing teams to resolve bugs, maintain knowledge base and templates, and occasionally handle social media and play the game to reproduce issues.

Design and implement a petabyte-scale analytical system using Java and cloud platforms. Own full lifecycle tasks: architecture, development, performance optimization, debugging, and documentation while balancing performance and complexity.