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TopsortTopsort

Software Engineer, Infrastructure

Build and own the infrastructure platform supporting Topsort’s real-time auction engine, APIs, and developer tooling. The role requires production Kubernetes, cloud, infrastructure-as-code, CI/CD, distributed-systems, observability, and security experience.

About the job

Responsibilities

  • Design, build, and maintain foundational infrastructure supporting compute, networking, deployment, and observability.
  • Define and enforce SLOs, build alerting systems, and lead preventative postmortems.
  • Build reliable CI/CD pipelines and deployment systems while automating release toil.
  • Manage AWS/GCP cloud infrastructure with Terraform or equivalent infrastructure-as-code tools.
  • Build internal tooling and platform capabilities that improve developer speed, safety, and autonomy.
  • Implement infrastructure-level security practices, including secrets management, network policies, RBAC, and supply-chain integrity.
  • Capacity-plan, load-test, and tune systems proactively.
  • Participate in the on-call rotation and respond to, resolve, and document production incidents.

Requirements

  • Bachelor's degree in Computer Science, engineering, or a related field.
  • 2–5 years of software engineering experience, with meaningful infrastructure, platform, or SRE experience.
  • Hands-on production experience with Kubernetes.
  • Experience with a major cloud provider, preferably AWS, and infrastructure-as-code using Terraform or a similar tool.
  • Strong distributed-systems fundamentals, including the CAP theorem, eventual consistency, and failure modes.
  • Experience building or maintaining CI/CD pipelines with GitHub Actions, ArgoCD, or similar tools.
  • Familiarity with observability tooling for metrics, logs, and traces.
  • Security-conscious approach to blast radius, least privilege, and secrets rotation.

Nice-to-haves

  • Experience with high-throughput, low-latency systems such as ad tech, fintech, or real-time bidding.
  • Familiarity with service mesh, eBPF, or advanced Kubernetes networking.
  • Experience with database infrastructure and data streaming.
  • Track record of improving developer experience and reducing time to deploy.
  • Experience at a high-growth startup where infrastructure scaled rapidly.

Skills

Kubernetes, AWS, GCP, Terraform, CI/CD, GitHub Actions, Argo CD, Distributed Systems, Observability, RBAC, Secrets Management, Service Mesh, Ebpf, Data Streaming, Database Infrastructure

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