Danial Khaledi
I’m a platform and AI-focused engineer based in Helsinki, and I help keep high-throughput production services running reliably end to end—from application code to databases and infrastructure.
About
I’m a platform and AI-focused engineer based in Helsinki, and I help keep high-throughput production services running reliably end to end—from application code to databases and infrastructure. With nearly 8 years of backend and production infrastructure experience, I develop features and REST APIs, maintain Java-based services, and handle troubleshooting using observability and incident-ready practices.
I enjoy automating repetitive operational work and, more recently, building AI-driven agents to support engineering workflows like pull request gating and security CVE patching. I also like communicating technical details clearly to non-engineers, collaborating across teams, and improving the platform behind mission-critical products.
- 7 years' experience
- Joined November 2026
Industry experience
- Software & Internet
- Financial Services
Work experience
Keep Visma Sign running in production by troubleshooting across application code, databases, infrastructure and pipelines, including monthly on-call maintenance. Develop Visma Sign features and REST API endpoints in PHP (Symfony) and C#/.NET at scale (main API ~7M requests/day). Maintain Java services (PDF processing and signature service). Migrate and harden data platforms by moving a long-running MySQL/MariaDB dataset to a replicated Galera cluster and migrating on-prem to Cloud SQL via Cloud SQL Auth Proxy. Administer Linux servers and automate releases/deployments with Ansible and scripting. Build observability as code (dashboards and alerts) and design AI agents for pull request gating and security CVE patching. Support the cloud platform and infrastructure migration on Google Cloud and Kubernetes using Terraform.
Modernized legacy systems by breaking monoliths into Docker-based services and improving deployment practices for Linux-hosted environments. Managed Nginx and Apache configurations and built/maintained deployment and release workflows. Developed backend services using PHP/Laravel and real-time features with Node.js, Express.js and Socket.io. Worked on Vue.js frontends, debugging and optimizing production issues.
Built and maintained backend systems and REST APIs using PHP, Laravel and MySQL, integrating Google APIs and other third-party services. Refactored and optimized existing codebases and supported frontend features with JavaScript and Vue.js.
Education
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