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Reyn Hartono

Resume

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At a glance
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  • Focus: backend · SRE/infrastructure · security · technical leadership
  • Remote · global · full-time or contract

Experience (summary)
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Engineering Team Lead — The Software Practice Pte Ltd (Singapore, remote)
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Dec 2023 – Feb 2026 Tech lead. Backend services and client systems in C# / .NET Core. APIs and business logic on delivery timelines. Validation layers to cut bad input and production error noise. Worked with PM and QA on defects and production readiness.

Senior Site Reliability Engineer — Verihubs (Jakarta, remote)
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Feb 2022 – Nov 2023 Multi-cloud GCP/AWS architecture. IaC for repeatable change. GitLab CI + ArgoCD. Observability with Grafana / Loki / Tempo / VictoriaMetrics. Multi-cloud network design (VPN, cross-cloud, vendor access, isolation). API gateway tuning. Mentored interns and new engineers.

Site Reliability Engineer — Verihubs (Jakarta, remote)
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Jun 2021 – Jan 2022 Built foundational SRE practice: Kubernetes, Terraform, ArgoCD/GitOps. PostgreSQL operations. Self-hosted GitLab. Container workload reliability. Performance work with product engineers. Supported ISO 27001 security and compliance efforts.

Network Administrator & Technical Support — BINUS University
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Sep 2019 – Aug 2021 Automation for lab and infrastructure operations. Linux/Windows servers. Campus network (routing, switching, firewalls, access control). Wireshark-level diagnosis. Active Directory. Datacenter hardware work.

Teaching Assistant — BINUS University
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Sep 2018 – Aug 2019 Undergraduate practicums covering programming, penetration testing, secure web development, forensics, operating systems, and networking.

Freelance Web Developer
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Jun 2011 – Jul 2018 Full-stack work via Fiverr and Upwork (PHP/Laravel, WordPress, hosting migrations, Linux, legacy fixes). High client volume with strong ratings.

Skills
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Backend: PHP, Laravel, C#, .NET Core, Java, Node.js Cloud: GCP, AWS Infra: Terraform, Ansible, Docker, Kubernetes, Helm CI/CD: GitLab CI, ArgoCD Observability: Grafana, Loki, Tempo, VictoriaMetrics Data: MySQL, PostgreSQL, SQLite, Redis Networking: TCP/IP, VPNs, API gateways, packet analysis, MikroTik, FortiGate

Reyn Hartono
Author
Reyn Hartono
I build and operate systems that stay reliable and secure under real load. Open to senior roles in backend and SRE/infra, and to technical leadership — remote, globally.