Senior Infrastructure Engineer

pWe are hiring a Senior Infrastructure Engineer to help rebuild the platform underneath Stream. Over the next year the infrastructure team is moving from AWS to GCP, moving onto Kubernetes, and relocating 35 to 40 Postgres shards off managed RDS to self-hosted, while the platform keeps serving billions of API requests a month. You will own parts of that outright. /pbrAls de volgende functie-eisen en ervaring overeenkomen met uw vaardigheden, zorg er dan voor dat u snel solliciteert.brpThis is a small, senior team without the support structures of a large organisation. You will write code most of the time and make infrastructure calls on your own. Success looks like systems that scale predictably under load, cloud spend that falls per unit of traffic, and migrations that land without incident. /ppbThis is a full-time job opening based in Amsterdam (3 days hybrid) or remote in Europe/EU. /b /pAbout StreampStream powers real-time Chat, Video, Activity Feeds, and AI Moderation for billions of end-users across thousands of apps, from Strava and Bumble to eBay and Patreon. Our platform processes billions of API requests per month and supports applications with millions of concurrent users, while delivering highly reliable, low-latency services and a great developer experience. /pWhat you will doulliDesign, build and operate infrastructure for real-time systems carrying millions of concurrent connections and billions of monthly API requests. /liliDrive Kubernetes end to end: cluster architecture, workload design and the migration of existing services. You will be designing clusters, not operating someone else's. /liliRe-architect workloads as part of the AWS to GCP migration, for cost and performance rather than a lift and shift. /liliOwn cloud cost and efficiency work: find the levers, measure them against real spend and utilisation data, and show what moved. /liliWrite production Go and Python: internal services, platform tooling and automation that change how product and SDK engineers deploy, observe and debug. /liliLead post-migration tuning and capacity planning, closing the loop between the architecture you chose and what production actually does. /liliWork with backend, video and moderation engineers on system design, reliability targets and tradeoffs that cross service boundaries. /liliTake part in on-call, incident response and root cause analysis, and turn what you find into durable fixes. /li /ulWhat we are looking forulli5+ years in infrastructure, platform, DevOps or SRE engineering, with clear depth in infrastructure over application development. /liliA software engineering background. You have built systems, not only configured them. Production coding experience in Go or Python. Scripting-only backgrounds are not a fit. /liliKubernetes at meaningful production scale, past operations: you have driven cluster strategy, designed workloads, or led a migration, and you have tuned what came out the other side for cost and efficiency. /liliCloud cost or efficiency optimisation you personally led on AWS or GCP, with an outcome you can put a number on. FinOps practice is a plus. /liliDirect experience running high-scale, high-load production systems. /liliStrong cloud fundamentals across networking, compute, storage and IAM, and the habit of asking why a system behaves the way it does instead of accepting the default. /liliComfortable in a small team: leading a project and reviewing a PR in the same week. /liliAI tooling already in your engineering workflow. Applied use, not familiarity. /liliBoth AWS and GCP, and migration experience between providers. /liliPostgreSQL at scale: sharding, replication strategy, partitioning tradeoffs, ideally self-hosted. /liliReal-time systems: WebSockets, WebRTC, streaming or other persistent-connection workloads. /liliThe wider stack: CockroachDB, Redis, Terraform, and a Prometheus-based observability stack. /liliAn API-first or infrastructure company at scaleup stage. /liliOpen source contributions to infrastructure or platform tooling. /liliWriting or talks on cloud, platform or distributed systems. /liliFormal FinOps practice, or owning cloud commitment and reservation strategy. /liliWork on developer-facing API or SDK products. /li /ulOur stackulliGo, gRPC, RocksDB, Python /liliGCP /liliGrafana, Prometheus, ELK (Elasticsearch and Kibana) /liliJaeger and Tempo for distributed tracing, Datadog /liliRedis, Memcached /li /ulYou will thrive here ifulliYou want infrastructure problems at a scale most engineers never touch, and the autonomy to own them. /liliYou ship fast and learn fast, including when it is hectic. /liliYou are self-directed and comfortable working with a globally distributed team across time zones. /li /ulYou probably will not ifulliYou want tightly scoped tickets and step-by-step direction. /liliYou need a calm, highly predictable environment. /liliYou would rather wait for a defined process than act. /li /ulCompensation and benefitspFor employees based