Mid-Level Full‑Stack Application Engineer (AdTech Platform)

This role offers the opportunity to design, build, and operate large‑scale advertising platforms within a high‑impact digital business. You will take technical ownership across the full development lifecycle while collaborating with diverse, international engineering teams.

Client Details

Our client is a large multinational digital commerce and technology group with advertising as one of its core growth pillars. The organization operates complex, high‑volume ad platforms and serves both internal businesses and external clients at scale, with engineering teams distributed across Asia.

Description

Project Execution

• Gather and analyze business requirements and translate them into technical solutions
• Design systems and application architecture
• Develop, review, and maintain high‑quality code
• Conduct unit testing, verification, and validation
• Handle deployments and rollback operations across development, staging, and production environments
• Monitor systems post‑release and perform ongoing maintenance

• Work closely with project managers, tech leads, architects, and engineers
• Partner with dedicated QA and DevOps teams
• Collaborate with cross‑border, multicultural development teams

• Gain a deep understanding of products and systems to propose technical enhancements
• Anticipate future business and product needs and suggest proactive system improvements
• Explore emerging technologies, including AI tools and models, and contribute to technical roadmaps

Job Offer

• Exposure to large‑scale, high‑impact advertising and data platforms
• International, collaborative engineering environment
• Tokyo‑based role in a major technology hub (on‑site development environment)

To apply online please click the 'Apply' button below. For a confidential discussion about this role please contact Serena Wu on +81 3 6627 6137.

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