Senior Software Engineer (AdTech)

TL;DR

Senior Software Engineer (AdTech): Lead the design and delivery of advertiser and operator workflows within the hirify.global Cloud Portal with an accent on scalable backend services and high-throughput APIs. Focus on architecting reporting pipelines, improving system reliability, and mentoring junior engineers to drive business impact.

Location: Seoul, Korea

Company

hirify.global builds AI-powered advertising solutions to democratize access to advanced machine learning for businesses across the digital economy.

What you will do

• Lead end-to-end design and implementation of complex advertiser workflows and services in the hirify.global Cloud Portal.
• Architect backend services and APIs for campaign setup, health monitoring, reporting, and diagnostics.
• Collaborate with Product, UX, Data, and ML teams to define the operational and reporting experience strategy.
• Design reliable analytics and reporting pipelines, including data contracts and SLIs/SLOs.
• Mentor junior engineers and drive engineering best practices in code quality, observability, and reliability.
• Influence the long-term technical direction for the Ads Experience platform to unlock future product capabilities.

Requirements

• 8+ years of software engineering experience, with a strong focus on backend or platform work.
• Proficiency in Java, Go, Kotlin, C++, or Python.
• Strong system design skills and experience building large-scale distributed systems.
• Deep experience with web services, APIs, and relational or NoSQL databases (e.g., BigQuery, MySQL, PostgreSQL).
• Proven experience as a project tech lead, managing ambiguous problems and aligning stakeholders.
• Fluent in English, capable of driving technical decisions with global stakeholders.

Nice to have

• Experience with AdTech systems, campaign performance metrics, or attribution models.
• Hands-on experience with GCP, BigQuery, Dataflow, Kafka, or Beam/Spark.
• Track record of driving organization-wide improvements in reliability and developer productivity.
• Experience working in global or multi-region environments.

Culture & Benefits

• Culture built on humility, accountability, and an uncapped growth mindset.
• Emphasis on creating real value through disciplined trade-offs and intelligent risk-taking.
• Inclusive and collaborative environment focused on a shared mission.
• Comprehensive benefits and well-being programs to support employees and their families.