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

About the Position

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

Blue Language Labs is building the trust layer the AI economy has been waiting for - a protocol for structured, verifiable, multi-party agreements that execute deterministically, leave an audit trail, and work across any system. Think smart contracts, minus the blockchain overhead. Our products are already being built and tested with real integrations:

• PayNotes - Programmable payments with conditional capture, milestone releases, refunds, vouchers, and partner settlement.
• MyOS - SaaS orchestration layer for merchants and agents. Cross-platform trust, without writing a line of Blue Language yourself.

The System You’ll Own

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.

Responsibilities

• 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.

Requirements

• 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.

We Offer

• 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.

About the Company

Blue Language Labs is building the trust layer the AI economy has been waiting for - a protocol for structured, verifiable, multi-party agreements that execute deterministically, leave an audit trail, and work across any system. Think smart contracts, minus the blockchain overhead. Our products are already being built and tested with real integrations:

• PayNotes - Programmable payments with conditional capture, milestone releases, refunds, vouchers, and partner settlement.
• MyOS - SaaS orchestration layer for merchants and agents. Cross-platform trust, without writing a line of Blue Language yourself.