Senior / Staff Platform Engineer (AWS · Infrastructure · Distributed System)

Nasze wymagania:
6+ years building and running production infrastructure
Deep AWS knowledge and strong operational instincts
Infrastructure as Code only — no manual steps, no console dependency
Strong distributed systems thinking: ordering, retries, idempotency, recovery
Experience with PostgreSQL, Lambda, SQS, Redis, S3, and CI/CD
Obsessed with reliability, security, visibility, and automation
Comfortable owning critical infrastructure end to end
Fluent English and Polish, written and spoken

O projekcie:
MyOS processes documents, payments, and agent interactions through a distributed, event-driven pipeline where correctness isn’t optional. State must be deterministic, ordering must be exact, and failure must be recoverable without data loss or partial writes. A bad deployment here doesn’t just cause downtime — it can silently break processing guarantees across active sessions. Understanding why that matters, and building infrastructure that prevents it, is the job.
The Role
You will own features end-to-end — from the React component a merchant clicks to the Lambda function that settles their transaction to the AWS infrastructure that keeps it all standing. No handoffs between "front" and "back". No waiting for someone else to unblock you.
This is a high-trust, high-autonomy role. You'll work directly with the founding team, your decisions will ship to production fast, and yes — you'll be on the hook when something breaks.
We’re looking for someone who will take full ownership of the DevOps side of the project and operate independently — without needing constant support or hand-holding. This role includes on-call duties, so we’re looking for someone who is comfortable with that model of collaboration and sees it as a natural part of engineering work.
We’re not looking for someone to manage servers. We’re looking for an engineer who looks at a distributed, event-driven system and immediately sees the failure modes, the ordering edge cases, and the places where a misconfigured queue will silently corrupt state. Someone who automates everything, documents why, and gets angry when something requires a manual step.

Zakres obowiązków:
Own all AWS infrastructure end-to-end — architecture, cost, security, reliability, and compliance. No infrastructure team above you
Design and maintain CI/CD pipelines that let engineers ship confidently and fast — zero manual steps from commit to production
Build monitoring and alerting that surfaces real problems early: queue depth, processing failures, latency spikes, delivery anomalies — dashboards that tell you what’s actually wrong
Manage PostgreSQL at scale — configuration, connection pooling, migration strategy, performance, backup and restore
Keep real-time and async processing components healthy across Lambda, SQS, Redis, S3, and the services that connect them
Enforce IAM least-privilege across the system — service-to-service trust, secrets management, network isolation
Manage environments (dev / staging / prod) with infrastructure parity and clean promotion paths
Own cost visibility and optimization across a growing AWS footprint
Use modern AI tooling to accelerate infrastructure work and experimentation

Oferujemy:
Competitive B2B compensation based on experience
Equity — own a piece of what you build
Fully remote work in an async-first environment
Direct collaboration with the founding team
High autonomy and fast decision-making
Small team, outsized impact
Work on technology that is genuinely novel
End-to-end ownership across product, systems, and production