Principal Engineer Platform (mfd)

The Platform Principal Engineer is the senior-most individual contributor in the Platform Engineering Domain. You set the technical direction for how 80 engineers build operate and evolve InPosts engineering platform spanning cloud infrastructure developer experience reliability and AI foundations. You operate at the intersection of architecture and delivery: you shape the strategy and you stay close enough to the work to validate it.

This is not a consulting role. You drive technical decisions that stick.

What Youll Do

Technical Direction

• Own the long-term technical roadmap for the Platform Engineering Domain across four pillars: Platform Engineering & Delivery Developer Experience SRE & Reliability AI & Cloud Foundations.
• Identify architectural risks and opportunities ahead of the teams raise them early propose solutions drive resolution.
• Define and evolve platform-wide standards: SDLC compliance (targeting SCS 80/100) observability baselines cloud-native patterns.

Cloud & Infrastructure

• Lead the technical strategy for InPosts migration from on-prem data centres to GCP targeting a 2550% CO2e footprint shift from the Jan 2026 baseline by year-end.
• Establish reference architectures for services running on GCP; review and govern deviations.
• Drive cost efficiency reliability and security posture at the platform layer.

Developer Experience

• Define the developer platform vision: what self-service capabilities engineering teams get how they get them and what the experience benchmark is.
• Partner with the Developer Experience and Platform Engineering leads to move from bespoke tooling to a coherent internal developer platform.

AI Foundations

• Shape the technical approach to AI adoption across InPost Technology (AES target: 75/100 by Dec 2026).
• Design the infrastructure and platform primitives that make AI tooling safe scalable and measurable not experimental.
• Act as a technical bridge between the AI & Cloud Foundations team and the broader engineering org.

Cross-Domain Technical Leadership

• Represent Platform Engineering in architecture reviews CTO-level discussions and cross-domain technical governance.
• Mentor senior and staff engineers; raise the technical floor across the domain.
• Write well: your proposals design documents and postmortems set the quality standard.

What You Wont Find Here

• A governance-heavy role where influence is measured in slide decks.
• A team that treats reliability as an afterthought.
• A company that treats AI adoption as a comms exercise.

Qualifications :

What Were Looking For

Must have

• 10 years of software or infrastructure engineering with 3 years in a principal or staff-level IC role at a company of comparable scale.
• Deep GCP expertise architecture IAM Kubernetes (GKE) networking cost management.
• Strong SRE foundations: SLOs error budgets incident management reliability by design.
• Demonstrated track record of driving multi-team technical initiatives from ambiguity to delivery.
• Ability to operate at both the whiteboard and the pull request you read code you write RFCs you review production incidents.
• Clear direct communication in English (Polish is an advantage not a requirement).

Strong plus

• Experience building internal developer platforms (Backstage platform APIs golden paths).
• Hands-on background in CI/CD systems GitLab or supply-chain security.
• Exposure to AI/ML infrastructure or LLM-based tooling at production scale.
• Experience in logistics e-commerce or high-throughput operational systems.

Additional Information :

Why Join InPost

• Opportunity to work in a diverse international and cross-functional environment along with leading experts. 
• Fulfilling careers with a range of benefits for employees and invests in providing training opportunities for their development. 
• Your impact will be visible instantly and you will be making a difference in our users lives
• Real ownership youll make architectural calls that impact multiple markets
  A platform with genuine complexity worth solving (international scale complex CMS)
  Space to experiment with AI tooling and bring new ideas into production
  A mature experienced team that values technical depth

Remote Work :

Yes

Employment Type :

Full-time