Deputy CTO

BillEase; Philippines; On-site; PHP 3,000,000 - 6,000,000; Full time

Job summary

BillEase seeks a Deputy Chief Technology Officer to lead architecture and platform efforts in a fintech environment. You will drive design decisions for scalable, secure systems, bridge engineering with business needs, and own reliability and regulatory compliance across cloud and on‑premise components.

You will mentor senior engineers, oversee Kubernetes and data platforms, and shape end‑to‑end transaction flows with a focus on security and performance in a fast‑paced fintech setting.

Qualifications

• Experience designing, building, and operating fintech systems with regulatory awareness.
• Strong architectural leadership and hands-on delivery in microservices and event-driven patterns.
• Deep security mindset with encryption, key management, and secure networking.
• Proven track record in cloud platforms (AWS and/or GCP) and modern deployment practices.
• Hands-on coding in Python and Golang; fluent in Linux and containerization.

Responsibilities

• Design, evolve, and govern scalable, secure architectures for fintech platforms.
• Lead architecture reviews, due diligence, and major design decisions.
• Own architecture documentation (C4, ADRs) and maintain platform observability.
• Direct production Kubernetes environments and cost-governed cloud deployments.
• Ensure platform reliability, security, and regulatory compliance in all stacks.
• Oversee data, messaging, and backend services with PostgreSQL, MySQL, and Kafka/RabbitMQ.
• Collaborate with mobile teams on API design, security, and performance across systems.
• Mentor engineers, drive execution, and support hiring for senior roles.

Skills

Lead engineering teams

Technical authority

Architecture design

Kubernetes

AWS

GCP

Docker

Python

Golang

Security & compliance

CI/CD

Tools

Kubernetes (EKS/GKE)

Helm

Ingress controllers

Blue/green deployments

AWS services (VPC, EC2, EKS, RDS, S3, Route53)

GCP services (GKE, Pub/Sub, Cloud SQL)

Docker

Kafka

RabbitMQ

PostgreSQL

MySQL

ClickHouse

Elasticsearch/ELK

Prometheus / Grafana / VictoriaMetrics

Airflow

Redshift

Job description

Billease is seeking a Deputy Chief Technology Officer (Deputy CTO) who will serve as a senior technical authority and a trusted partner to the CTO. This role requires deep hands‑on expertise, a strong theoretical foundation, and proven experience designing, building, and operating complex systems within a fintech environment.

The Deputy CTO will independently drive architectural decisions, ensure platform stability, security, and scalability, and effectively bridge engineering execution with business and regulatory requirements.

Architecture & Technical Leadership

• Design, evolve, and govern scalable, secure, and highly available architectures.
• Strong experience with microservices, event-driven systems, and modular monoliths, with clear trade‑off analysis.
• Deep grounding in design patterns, SOLID principles, and Clean Architecture.
• Lead architecture and code reviews, technical due diligence, and major design decisions.
• Own and maintain architecture documentation (C4, ADRs, diagrams).

Platform, Cloud & Infrastructure

• Hands‑on leadership of production Kubernetes environments (EKS/GKE).
• Strong knowledge of Helm, ingress controllers, autoscaling (HPA/VPA), and zero‑downtime deployment strategies (blue‑green, canary, rolling).
• Deep experience with AWS (VPC, EC2, EKS, RDS, S3, Route53, Load Balancers) and working knowledge of GCP (GKE, Pub/Sub, Cloud SQL).
• Design secure, highly available, cost‑efficient multi‑AZ cloud architectures.
• Strong understanding of IAM, backups, disaster recovery, and cost governance.

Security & Reliability

• Strong information security mindset aligned with financial‑grade standards.
• Experience with encryption (in transit/at rest), key management, secrets storage, VPNs, and secure networking.
• Solid networking fundamentals: TCP/IP, routing, firewalls, DNS, and load balancing.
• Ownership of observability and reliability practices using Prometheus, Grafana, VictoriaMetrics, logs, metrics, traces, alerts, and SLOs.

Backend, Data & Messaging

• Strong hands‑on experience with Python (FastAPI/Flask/Django) and Golang for high‑performance services.
• Deep understanding of Linux and Docker (multi‑stage builds, runtime security).
• Experience with messaging and streaming platforms (Kafka, RabbitMQ), including retries, DLQs, and delivery semantics.
• Strong database expertise: PostgreSQL, MySQL, ClickHouse, SQL optimization, and familiarity with NoSQL systems.
• Experience with logging/search stacks (ELK).
• Solid understanding of data warehousing and pipelines (Redshift, Airflow, ETL/ELT, data quality).

Fintech, Payments & Domain Knowledge (Mandatory)

• Proven experience working in a fintech company.
• Strong understanding of regulatory and compliance constraints, risk management, and security requirements.
• Hands‑on knowledge of card payment systems (authorization, clearing, settlement), PCI‑DSS, payment gateways, and 3‑D Secure.
• Understanding of end‑to‑end transaction flows, reconciliation, and financial reporting.
• Experience supporting collections systems or workflows is a strong advantage.

Mobile & Integrations

• Ability to review and guide high‑scale mobile applications (Android: Kotlin/Java, iOS: Swift).
• Experience collaborating with mobile teams on API design, security, performance, and release coordination.
• Strong experience designing and debugging integrations using standard internet protocols (HTTPS, SMTP, SFTP).

Leadership & Ways of Working

• Proven experience leading senior engineering teams and acting as a technical authority.
• Ability to mentor engineers, provide structured feedback, and drive execution.
• Experience hiring and onboarding senior engineers is a plus.
• Strong Agile and delivery management skills (Scrum/Kanban), including backlog prioritization, release planning, risk management, and stakeholder communication.
• Strong Git and CI/CD practices.