Kousha Ghodsizad
Systems & Infrastructure Engineer
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Systems & Infrastructure / Platform Engineer. I help teams design reliable platforms, automate delivery, and turn complex backend and infrastructure systems into clear, maintainable architecture.

■ Experience

Adyen
Jul 2023 — Present / Infrastructure Engineer, CI/CD & Platform
  • Designed and built adyencli in Go, the CLI for Adyen's plugin management platform: SDKs for plugins in four languages, building and distribution through Adyen's package-management infrastructure, and access-controlled, secure execution on Linux.
  • Built platform services within Adyen's existing infrastructure, including Kubernetes, Helm, Argo CD, Cilium networking, Consul, Vault, and Calico-based network and firewall controls between data centres.
  • Designed the backend architecture of a separate highly available system across four geographically separated data centres, routing requests to responsive services and built to stay operational when one or more data centres became unavailable.
  • Built a multi-cluster Argo Workflows execution solution with per-workflow ownership, using Kubernetes Leader Election as part of the broader architecture: another cluster with capacity could take over on failure or resource pressure, and node-status offloading let the new owner retry a Failed step instead of restarting the workflow.
  • Contributed to a Python self-service automation platform where teams define repository automation as Gherkin scenarios over reusable modules, with NATS and Prometheus/Grafana monitoring down to individual merge requests and pipelines.
Studocu
Jul 2022 — Jul 2023 / Senior Software Engineer
  • Worked on backend performance, crawler accessibility, observability, and production reliability for a high-traffic education platform.
  • Built CI/CD checks for SEO and performance testing to make delivery quality more repeatable.
  • Helped teams identify bottlenecks across application and database layers and translate findings into practical improvements.
KolayIK
May 2021 — May 2022 / Senior Software Engineer & Backend Team Lead
  • Led backend engineering across HR systems, expense management, data import/export, and queue-based services.
  • Designed and brought up K3s infrastructure from scratch for a multi-data-centre, high-availability environment, covering cluster deployment and the supporting infrastructure required to operate it.
  • Applied modular architecture, domain boundaries, TDD, messaging, and AWS services to improve maintainability and operational behaviour.
Wingie Enuygun Group
May 2020 — Apr 2021 / Senior Software Engineer & Team Lead
  • Led hotel-provider integration work and backend services for provider aggregation, search, caching, and data pipelines.
  • Designed Go/gRPC services for concurrent provider requests and standardised hotel data flows.
  • Improved reliability through testing practices, Elasticsearch tuning, cache strategy, and database migration work.
Insider
Jun 2019 — Jun 2020 / Senior Software Engineer
  • Refactored newsletter and email-delivery systems from legacy structures toward clearer service boundaries.
  • Worked on Go services, messaging, data migration, security remediation, and high-volume marketing infrastructure.
  • Improved maintainability through architecture review, repository-service patterns, and data-flow redesign.
Bamilo
Aug 2015 — Apr 2019 / Senior Software Engineer & Head of Development
  • Built and led engineering work across marketplace operations, seller tooling, warehouse systems, delivery tracking, and inventory services.
  • Owned backend architecture, team growth, data migration, Kafka-based pipelines, and service reliability improvements.
  • Helped turn operational problems into maintainable internal platforms for logistics and marketplace teams.
Sepehr Mahan Tech
Aug 2012 — Jul 2015 / Senior Software Engineer
  • Developed organisational workflow, task management, form builder, social network, and mobile API systems.
  • Focused on backend services, process automation, and maintainable application foundations for private and public-sector clients.

■ Selected Platform & Backend Projects

Pepper.com Platform Work
Image processing & marketplace microservices / Go, Kubernetes, Cloudflare, GraphQL
  • Built a Go image-processing service capable of processing around 5,000 new images per minute, generating multiple resized variants for delivery across the platform.
  • Implemented deterministic request routing: Cloudflare middleware derived a routing value from each image ID and the configured scaling limit, so the load-balancing layer consistently routed requests for a given image to the same Kubernetes service under the same routing configuration.
  • Prevented redundant processing of concurrent duplicate resize requests with singleflight-style request coalescing, so overlapping requests shared work already in progress.
  • Developed GraphQL flows for deal submission, product listings, and product details.
  • A Little More About Me
  • Alongside my interests in software engineering
     DevOps some of my other interests and hobbies are:
  • Professional Chess Player
    Rock Climbing
  • Running
    Hiking

Systems & Infrastructure Engineer

Helping teams design reliable platforms, automate delivery, and turn complex systems into clear, maintainable architecture.

Systems & Infrastructure / Platform Engineer with a backend engineering background. I build and operate production platforms, from Kubernetes infrastructure and CI/CD workflows to the developer tools engineering teams use to build and run their services. My work spans infrastructure automation, observability, reliability, and distributed systems, with a focus on secure, resilient, and maintainable systems.

I take ownership from design and implementation through production operation and ongoing improvement. I enjoy solving complex technical problems, making architectural decisions, and building tools that help engineering teams work independently. I care about engineering quality and systems that remain reliable as they scale.

Core Expertise

Platform Engineering & Developer ToolingGo-based platform tools and CLIs, plugin management, secure execution, reusable automation, and self-service workflows.
Kubernetes & Application DeliveryKubernetes and K3s infrastructure, Helm, GitOps with Argo CD, progressive delivery with Argo Rollouts, and CI/CD with GitLab CI and Jenkins.
Infrastructure as Code & SecretsInfrastructure provisioning with Terraform, configuration management with Puppet, secrets management with HashiCorp Vault, and service discovery with HashiCorp Consul.
High Availability & ReliabilityMulti-data-centre architectures, request routing, workflow recovery and failover, deployment safety, and production reliability.
Observability & Production OperationsPrometheus, Grafana, metrics, logging, dashboards, post-deployment monitoring, and production issue investigation.
Backend Systems & ArchitectureGo services, APIs, workers, messaging, distributed systems, system design, service boundaries, technical reviews, and engineering standards.

Technical Skills

Languages & BackendGo, Python, PHP, Shell, APIs, gRPC, GraphQL, services, workers, CLIs.
Containers & OrchestrationKubernetes, K3s, Docker, Helm.
Kubernetes Networking & StorageCilium (Kubernetes networking), Calico (network and firewall controls in existing infrastructure), Flannel (pod networking in personal infrastructure), Longhorn (storage in personal infrastructure).
Delivery & WorkflowsArgo CD, Argo Rollouts, Argo Workflows, Argo Events, Temporal, GitLab CI, Jenkins, Harbor, Nexus.
Infrastructure & AutomationAWS, private cloud, OpenStack, Terraform, Puppet, HashiCorp Vault, HashiCorp Consul.
Data & MessagingMySQL, PostgreSQL, Redis, RabbitMQ, Kafka, NATS, Cassandra, ClickHouse, Elasticsearch, MongoDB.
Observability & ReliabilityPrometheus, Grafana, metrics, logging, operational dashboards, readiness checks, rollout safety.
ArchitectureSystem design, reliability engineering, automation strategy, modular architecture, domain boundaries, technical review, engineering standards.

Work Preferences

  • I take ownership of the systems I work on, from design and delivery through to how they behave in production, and I take responsibility for making them better.
  • I enjoy difficult technical problems and demanding responsibilities, including production platforms, complex delivery workflows, and decisions with long-term consequences.
  • I hold myself to high engineering standards and think about the product as well as the code. I value strong collaboration, clear communication, and careful decisions because they lead to more reliable systems and better outcomes over time.