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Principal IT Architect (f/m/d)

Mobil
Full-time
Permanent employee

Your mission

JTL is one of the leading providers of e-commerce software in the German-speaking region — with around 450 employees across the group and more than 50,000 customers across a wide range of industries. We develop scalable, flexible solutions for the online retail of the future, from ERP systems to shop and marketplace integrations.

This role is part of the internal IT organization, not product development. Its scope covers the systems JTL itself runs on: the M365 tenant, identity and access (Entra ID / hybrid Active Directory), endpoint management with Intune, hybrid infrastructure, and workplace services. 
The Principal IT Architect operates at the most senior individual contributor level within the IT team, carrying significant ownership for architecture, solution design, and technical quality. The role ensures that initiatives are implemented sustainably, scalably, and in alignment with the IT strategy. 
This is not a management role in the traditional sense. Influence comes from technical depth, clear judgment, and the ability to bring teams and stakeholders along. Principals at this level shape the technical standard of the IT organization collectively — with clear ownership within their domains and on equal footing with peer Principals. 


Architecture Domains 

Principal IT Architect owns the target architecture across the five domains of internal IT:
  • Unified Digital Workplace & Identity— M365, Entra ID, Intune, Teams/SharePoint: identity and permission models (least privilege, JIT/JEA), Conditional Access guardrails, tenant structures; design of M&A onboardings (identity/mail migration, device takeover, workspace alignment)
  • Help Desk & Operations Excellence— technical escalations at platform level, root-cause analysis of structural failures, resilience measures (remediation, drift control, telemetry, logging)
  • IT Fundamentals, Security & Compliance— security and compliance controls (identity protection, endpoint baselines, device hardening), technical risk and impact analyses as decision input
  • Automation, Integration & AI Enablement— JML lifecycle automation, Graph API integrations, telemetry pipelines, AI-powered support automation within policy guardrails
  • Business Alignment & User Enablement— stakeholder and management communication, end-to-end ownership of key user journeys (joiner/mover/leaver, team setup, onboarding of new entities)

How We Work 

Cloud-first and integration-first, with golden paths instead of tool sprawl. Speed over perfection — with guardrails: small, shippable increments and traceable rollbacks. Users are partners, not risks:enablement over restriction, policies with minimal friction. Fundamentals first: patching, backups, inventories, and audits are measurable routines, not special projects. Documentation, roadmap, and support are transparent and English-first. 


Responsibilities 

Technical Architecture & Strategy Execution 

  • Define target architecture, architecture principles, and technical guardrails for systems, platforms, and integrations
  • Translate strategic goals into concrete technical initiatives and prioritize by business value and risk
  • Evaluate new technologies, platforms, and tools: benefits, risks, costs, strategic fit
  • Design solutions according to modern architecture principles: cloud-native, Zero Trust, automation
  • Own integration and platform strategies: consistent interfaces, API usage, system integration

Solution Ownership & Quality Assurance 

  • Structure complex requirements into technical work packages and document solution designs
  • Guide teams through critical implementation phases and drive sound technical decisions
  • Review architectures, designs, and implementations for consistency, quality, and strategic alignment
  • Identify technical risks and develop mitigation measures
  • Ensure complete, clear, and current documentation of systems and solutions
  • Take technical lead on major incidents and structural problems

Mentoring & Capability Development 

  • Mentor senior and mid-level engineers, supporting individual growth and technical depth
  • Share best practices and experiential knowledge in a structured way
  • Identify skill gaps and initiate appropriate development measures
  • Actively introduce and model modern technologies and ways of working

Innovation, Automation & Commercial Stewardship 

  • Identify automation opportunities and implement them through scripting, workflows, or platform solutions
  • Evaluate and integrate AI-powered tools to improve efficiency and decision quality
  • Build AI competence within the team
  • Evaluate technical solutions from an economic perspective: TCO, ROI, scaling costs, vendor lock-in
  • Develop structured option comparisons and decision materials for leadership
  • Identify cost savings through tool consolidation, decommissioning unused services, and cloud optimization

Your profile

  • You have 5+ years in a technical leadership role as Architect, Tech Lead, or Principal Engineer in corporate IT / IT infrastructure (not software product development) 
  • You bring proven architecture expertise in Microsoft environments: M365, Intune, hybrid infrastructures, and Active Directory  / Entra ID — owned at tenant/organization scale, not as application integration 
  • You have a deep understanding of modern architecture patterns: cloud-native, Zero Trust, API-first, and automation
  • You lead teams functionally without disciplinary authority, and you communicate technical topics clearly and appropriately for technical and non-technical audiences alike
  • You factor cost into your technical decisions 
  • You bring strong reliability and judgement to sensitive, critical work — acting independently on critical systems, escalations, and strategic decisions without constant sign-off
  • You are fluent in English 

Nice to Have
  • Fluency in German
  • Experience running IT in an ERP, e-commerce, or SaaS company environment
  • Background in security architecture (Zero Trust, IAM, compliance requirements)
  • Comfortable using AI tools for productivity and technical decision support

Why us?

  • Remote-first within Germany, with the option to work remotely from eligible countries for up to 180 days per year
  • Meal allowance of up to €115 net per month
  • Ergonomic workspace allowance for your home office setup
  • Regular team events, company-wide gatherings, and summer and Christmas parties to stay connected as a remote-first company
  • EGYM Wellpass and JobRad subsidy
  • Financial benefits including capital-forming payments (Vermögenswirksame Leistungen) and a company pension scheme

About us

JTL is one of the leading providers of e-commerce software in the German-speaking region – with around 450 employees across the group and 50,000 customers from a wide range of industries. We develop scalable, flexible solutions for the online retail of the future – from ERP systems to shop and marketplace integrations.

Fairness and respect are part of our everyday practice. Are you committed, curious, and eager to work in a team while taking on responsibility? Are you looking for a job where Monday isn’t the worst day of the week? Then we look forward to receiving your application!