Technical Lead – Platform Architecture (Mobile & Backend)

Hong Kong, Hong Kong SAR, Hong Kong

Technical Lead – Platform Architecture (Mobile & Backend)

Job Description

Position Summary

As a Tech Lead, you are responsible for defining and maintaining the overall system architecture and high-level integration design to ensure solutions are scalable, secure, and aligned with engineering standards. You guide technical decisions, ensure alignment across teams, and maintain end-to-end technical coherence across the our client's platform, working closely with Product, QA, DevOps, and external system owners.

Primary Responsibilities

Define and maintain end-to-end system architecture, including non-functional requirements (performance, security, scalability, availability) and key technical trade-offs.

Define and review high-level design (HLD) for integrations (APIs, events, data flows), ensuring alignment with enterprise standards, integration patterns, and security requirements.

Translate architecture decisions into clear guidance for implementation, and provide targeted hands-on support for complex design, code review, and technical spikes as needed

Oversee technical release readiness, including dependency alignment, readiness checks, and go/no-go decisions, ensuring smooth deployment and rollback strategies.

Lead troubleshooting on critical technical issues and incidents: perform impact assessment, drive root cause analysis (RCA), and coordinate resolution with internal and external stakeholders.

Improve engineering operational excellence by promoting observability, alerting, runbooks, and continuous improvements to reduce recurring incidents.

Ensure alignment across backend, mobile, QA, and DevOps on technical approach, architecture decisions, and delivery risks.

Act as the key technical point of contact for the scrum team, ensuring alignment across backend, mobile, QA, and DevOps on technical approach and delivery risks.

Requirements

Bachelor's degree in Computer Science, Engineering, or a related discipline, or equivalent practical experience.

Experience with mobile platforms (iOS/Android) and mobile-backend integration.

Minimum 15 years of software engineering experience, including experience leading technical design for distributed systems and integrations.

Strong understanding of system design principles, integration patterns (REST, event-driven), and API lifecycle management.

Experience with modern delivery practices (Agile/Scrum, CI/CD) and release management in

production environments.

Proven ability to troubleshoot complex production issues using logs, metrics, traces, and structured RCA approaches.

Strong communication skills to lead technical discussions with stakeholders across engineering, product, QA, DevOps, and vendors.

Experience in mobile application architecture and mobile-backend integration.

Required Skills

Architecture

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