DevOps Engineer

About TJTECH
TJTECH is a fast-scaling fintech company building AI-driven trading and broker infrastructure across Vietnam, Singapore, and Japan.
We operate:
Real-money B2C trading platforms
B2B broker infrastructure (MT4/MT5, liquidity, risk systems)
High-availability real-time trading systems You will lead the stability, scalability, and security of live trading infrastructure serving international brokers and retail traders.
Role Overview
We are seeking a Senior DevOps Engineer who will take ownership of mission-critical trading infrastructure.
This is not a maintenance role.
This is a leadership role responsible for:
Production reliability
Infrastructure architecture decisions
Incident command
DevOps process maturity
You will work closely with CTO-level stakeholders and product leadership.
Key Responsibilities
Architect and operate high-availability AWS infrastructure
Own Kubernetes cluster architecture and optimization
Lead CI/CD architecture and GitOps implementation
Ensure uptime and reliability of MT4/MT5 trading platforms
Design scalable monitoring and alerting systems
Drive incident response and root-cause analysis
Implement infrastructure-as-code practices
Strengthen system security and access controls
Mentor junior DevOps engineers
Experience
5+ years in DevOps / Infrastructure Engineering
Proven experience operating real-time production systems
Experience in financial systems or trading platforms (preferred)
Cloud & Infrastructure
Advanced AWS experience (VPC architecture, IAM, HA design, scaling strategy)
Strong Kubernetes expertise (cluster architecture, networking, RBAC, autoscaling)
Deep networking knowledge (TCP/IP, routing, firewall, load balancing)
Experience designing fault-tolerant, highly available systems
Experience with Terraform or similar IaC tools
DevOps & Automation
Strong experience designing CI/CD pipelines
Experience with GitOps (ArgoCD preferred)
Advanced deployment strategies (Blue/Green, Canary)
Monitoring stack experience (Prometheus, Grafana, ELK, etc.)
Strong Linux systems administration skills
Soft Skills
Strong ownership mindset
Ability to lead incident response calmly under pressure
Clear communication and cross-team coordination
Ability to make architectural trade-off decisions
Ngành nghề: CNTT - Phần mềm, CNTT - Phần cứng / Mạng
Kinh nghiệm: 3 Năm
Cấp bậc: Nhân viên
Hình thức: Nhân viên chính thức
Địa điểm: Hà Nội