Principal Infrastructure Platform Engineer
17 hours ago
Sheffield
Principal Infrastructure Platform Engineer Whitehall Resources require a Principal Infrastructure Platform Engineer to work with a key client on a 6 month initial contract. *This role will require on site work in Sheffield 3 days per week. *Inside IR35. Principal Infrastructure Platform Engineer Role Description: Strong Performance: Consistently demonstrates sound technical judgment, aligns platform decisions with enterprise goals, and enables progress across multiple teams. Exceptional Performance: Sets enterprise-wide technical direction, reduces systemic risk, and scales impact through standards, strategy, and mentorship. 0–30 Days: Organizational Alignment & System Comprehension Theme: Learns fast, builds credibility, operates effectively within enterprise constraints. 1. Architecture & Systems Knowledge Meets Expectations Demonstrates working knowledge of: • Key Platform Products/Services, • Network topology, IAM, CI/CD, monitoring, and security tooling, • Accurately explains current-state architecture, dependencies, and constraints. Exceeds Expectations • Identifies undocumented system behaviors, hidden coupling, or legacy risks early., • Provides leadership with a concise, accurate current-state assessment. 2. Reliability, Security & Risk Awareness Meets Expectations • Reviews historical incidents, audits, and compliance requirements., • Understands escalation paths, operational ownership, and change management processes. Exceeds Expectations • Proactively identifies systemic reliability or security risks and articulates business impact., • Surfaces risk tradeoffs in clear, executive-appropriate language. 3. Enterprise Influence & Collaboration Meets Expectations Establishes productive relationships across: • Enterprise Infrastructure, • Security, • Application teams (our customers), • Architecture review boards, • Respects governance and decision-making processes. Exceeds Expectations • Quickly earns trust as a neutral, high-judgment technical advisor., • Is consulted informally on complex or sensitive technical decisions. 31–60 Days: Technical Leadership & Measurable Impact Theme: Converts understanding into alignment, decisions, and improvement. 1. Architecture & Technical Direction Meets Expectations • Authors or contributes to enterprise-grade design documents., • Aligns proposals with: • Enterprise architecture standards, • Security and compliance requirements, • Cost and operational constraints Exceeds Expectations • Simplifies or clarifies existing architecture standards., • Resolves cross-team architectural disagreements through data and reasoning. 2. Execution & Delivery Meets Expectations • Leads or materially contributes to at least one high-impact infrastructure initiative, such as: • Platform modernization, • IaC standardization, • CI/CD reliability improvements, • Cost optimization Exceeds Expectations • Delivers measurable improvements (e.g., ↓ MTTR, ↓ deployment failures, ↓ cloud spend)., • Enables delivery across multiple teams without direct authority. 3. Reliability, Security & Operations Meets Expectations • Improves consistency of: • Incident response, • Postmortems, • Change management practices Exceeds Expectations • Introduces or strengthens reliability metrics, or risk dashboards used beyond a single team., • Elevates operational maturity at the program or portfolio level. 4. Mentorship & Technical Stewardship Meets Expectations • Mentors senior/staff engineers through design reviews and technical guidance., • Models strong documentation and decision-making discipline. Exceeds Expectations • Raises design quality across teams., • Reduces rework and decision churn through clearer architectural guidance.