Rakuten Viber

Backend Engineer

• Drive the end-to-end development of new features and communication capabilities within the cross-platform Viber for Desktop application, utilizing C++ and the Qt framework (QML/Qt Quick).
• Perform deep-level diagnosis, debugging, and performance optimization across the entire application stack, from the UI (Qt Quick/QML) down to network layers and database interactions (SQLite).
• Actively participate in architecture discussions and contribute to the ongoing refinement, refactoring, and standardization of the C++ codebase to maintain high quality and minimize technical debt.
• Collaborate closely with product, design, and QA teams to ensure seamless integration and deployment of new functionalities across Windows, macOS, and Linux platforms.

C++/Qt Software Engineer – Desktop Applications

Marketing Operations

• Manage the daily "upkeep" of the Sales Enablement Hub, ensuring all links, folders, and assets are functioning and correctly categorized.
• Conduct regular audits of the hub to identify outdated materials; coordinate with content owners to ensure assets are refreshed or archived.
• Assist in the uploading and tagging of new marketing collateral (whitepapers, case studies, one-pagers) to ensure high searchability for the sales team.
• Perform "light" edits to pitch decks, including data updates, localized text swaps, and branding touch-ups to support immediate sales needs.
• Provide operational assistance to the External Events Lead for major industry conferences (e.g., managing rooming lists, delegate registration, and pass allocations).
• Assist the Internal Brand Lead with logistics for partner events, ensuring attendee data is accurate and communication flows are maintained.
• Act as the administrative point of contact for event agencies, ensuring all necessary documentation and briefs are shared on time.
• Facilitate the vendor setup process by managing invitations and registrations within our procurement platform.
• Verify vendor status against historical budgets to ensure accurate financial reporting and prevent processing delays.
• Maintain our Global Events calendar and tasks, ensuring real-time accuracy of budget approvals, payment statuses, and project timelines.

B2B Marketing Operations Coordinator

Administrative Assistant

• Maintaining a comfortable, clean, and orderly office environment.
• Creating an environment conducive to a positive mood and employee engagement.
• Managing document flow, correspondence, and office supplies.
• Controlling and planning the office budget.
• Organizing and supporting visits by international colleagues.

Office Manager

Product Designer

• Lead the full design process: discovery, research, prototyping, testing, final design
• Own the design for financial flows where clarity and trust aren't optional. Sending and receiving money, wallet onboarding, transaction history, identity verification
• Use AI tools actively across your work, research synthesis, ideation, prototyping, workflow automation. Build on what exists and bring new approaches to the team
• Help shape AI-driven product features in a super-app that is actively integrating AI into the user experience
• Conduct hands-on research: user interviews, usability tests, digging into data and analytics
• Contribute to and help evolve the design system shared across Viber products
• Stay connected to the bigger picture, how design decisions tie into product KPIs and business outcome.

Full-stack Engineer

• Planning, designing, developing and maintaining high-availability applications that can be high-volume and low-latency
• Define application objectives and functionality
• Ensure application designs conform with business goals
• Support continuous improvement, investigating alternatives and technologies, and presenting for architectural review
• Work in a highly motivated team, closely with Product and Architects teams on large mission-critical systems
• Debug, optimize, and performance-tune your work across the stack

Senior Full Stack Engineer

Security Operations

• Monitor, investigate, and respond to security events across cloud and corporate environments
• Operate and continuously improve SIEM/SOAR platforms and detection capabilities
• Perform incident response, root cause analysis, and post-incident improvements
• Tune alerts and detection logic to reduce noise and increase signal quality
• Design and implement security automation workflows (e.g., alert triage, enrichment, response)
• Leverage AI tools and AI agents to enhance SecOps efficiency and scalability
• Support security operations across multi-cloud environments (AWS, GCP)

SecOps Engineer – Automation, Cloud Security

Engineering Manager

• Lead and grow Data Engineering and Machine Learning teams in a high-scale environment (tens of billions of events per day).
• Own the design and evolution of a self-service data platform enabling internal teams to easily build, ship, and consume data products.
• Architect and scale batch and streaming pipelines powering core business and ML use cases.
• Drive production ML systems end-to-end (recommendation, ranking, prediction) with direct business KPI impact.
• Ensure reliability, scalability, and observability of large-scale data and ML systems in production.

Data Engineering Manager

Marketing

• Create and execute a calendar of offline activities
• Proactively identify and secure strategic partnerships
• Own the entire lifecycle of local campaigns
• Review and provide critical feedback on creative assets
• Act as the primary source of local context for global teams
• Ideate and advise on PR-worthy campaigns

Marketing Manager

Artificial Intelligence

• Lead Automation Projects
• Partner with department leads across sales, support, finance, and HR to identify high-impact AI and automation opportunities.
• Design and build LLM-based workflows, integrating APIs, MCP servers, and internal tools.
• Develop agent-like automations and internal copilots that augment decision-making and execution.
• Own the full lifecycle — from ideation and process design through development, testing, and production launch.
• Present project plans, progress updates, and outcomes with measurable impact to stakeholders at all levels.
• Build AI Systems & Integrations
• Build robust, maintainable workflows using N8N, Claude Code, and other orchestration tools.
• Integrate across systems using REST APIs, webhooks, and external/internal tools.
• Design reusable patterns for skills, agents, and workflows that can scale across teams.
• Continuously evaluate and adopt new AI tooling, MCP capabilities, and agent frameworks.
• Maintain & Improve Live Systems
• Monitor, triage, and resolve issues across all live AI automations, copilots, and agents.
• Identify recurring failure patterns and implement systemic improvements to reliability, performance, and cost.
• Ship incremental improvements and new capabilities quickly and safely.
• Maintain clear documentation for workflows, agents, and system behavior.
• Drive AI Adoption, Skills & Governance Across Viber
• Act as the internal expert and first point of contact for employees using Claude Code and AI tools.
• Help teams build and scale AI skills — from basic usage to advanced workflows and agent design.
• Manage and optimize AI usage and performance across the organization (tokens, costs, reliability, adoption).
• Build and evolve an internal “AI control tower” — providing visibility into usage, performance, governance, and impact.
• Run onboarding sessions, workshops, and create practical guides that empower teams to work independently with AI.
• Guide teams through MCP integrations, tool configurations, and best practices.
• Stay current on Claude Code updates, new MCP capabilities, and emerging AI tooling — and proactively share relevant developments with the team.

AI Automation Engineer

Recruitment

• Manage the end-to-end recruitment process, including sourcing, interviews, and extending offers.
• Partner with hiring managers to build talent pipelines and refine recruitment strategies.
• Deliver an outstanding candidate experience while maintaining a strong talent pipeline.
• Innovate sourcing channels to attract top candidates.
• Utilize data-driven insights and the ATS (Spark/Comeet) to improve hiring decisions.
• Train and guide managers on recruitment best practices.
• Partnering and mentoring hiring managers to determine staffing needs and coordinating interviews

Global Talent Acquisition Partner

Product Manager

• Lead a creative product strategy and communicate effectively with your stakeholders
• Coordinate and prioritize allocated R&D resources in a scrum methodology, ensuring they are in sync with domain goals and the product roadmap
• Lead a data-driven and KPI-focused mindset that will be part of everyday decision-making
• Proactively coordinate, challenge, and sync operational and product needs with stakeholders, peer PMs, and supporting company units to maintain an effective working mode and seamless user experience
• Own all aspects of the product life cycle, from conception and design through ongoing support and maintenance
• Push your team and peers for excellence by setting an example

C++/Qt Software Engineer – Desktop Applications

C++/Qt Software Engineer – Desktop Applications

B2B Marketing Operations Coordinator

Office Manager

Product Designer

Senior Full Stack Engineer

SecOps Engineer – Automation, Cloud Security

Data Engineering Manager

Marketing Manager

AI Automation Engineer

Global Talent Acquisition Partner

Product Manager, Core