Exchange Engineer

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Job Title: Exchange Engineer
Location: Chesterfield, MO, Midwest United States, USA

Company: Bunge
Industry Sector: Agribusiness
Industry Type: Input Retail, Cooperative and Related Crop Services
Job Type: Full Time

Job Description: City : Chesterfield State : Missouri (US-MO) Country : United States (US) Requisition Number : 43624

Bunge seeks an Exchange Engineer to act as the global technical authority for Exchange Online and hybrid Exchange. This role owns the architecture, governance, security, automation, lifecycle management, and service reliability for messaging and modern workplace platforms (including adjacent M365 services like Teams, SharePoint, Copilot, Viva, and Power Platform governance). Responsibilities include defining technical strategy, driving cross-functional execution, leading incident reduction, ensuring operational excellence, and platform modernization. The role balances hands-on engineering with architectural leadership and global stakeholder influence.

Scope & Impact:

Global footprint: Supports tens of thousands of users and identities in a 24x7, multi-geo, highly regulated enterprise environment.
Platform ownership: Exchange Online, hybrid Exchange, transport/routing, mail hygiene, and integrated M365 services.
Service reliability: Accountable for SLOs/SLAs, availability, performance, and proactive risk reduction.
Governance & security: Sets technical standards, policy baselines, and control frameworks globally.
Modernization & cost: Leads roadmap execution, technical debt remediation, and TCO optimization.

Skills Required:

Expert-level fluency with PowerShell, Exchange Online/EXO V2 modules, Graph API, and automation.
Strong understanding of Defender for Office 365, EOP, SPF/DKIM/DMARC, TLS and mail hygiene controls.
Hands-on experience defining M365 governance/security controls (retention, DLP, eDiscovery, sensitivity labels, Conditional Access, PIM).
Excellent communication skills for architecture documents, standards, executive updates, and multicultural teams.

Key Responsibilities:

Own reference architecture and roadmap for Exchange Online and hybrid Exchange (connectivity, SMTP relay, transport rules, modern auth, namespace, Autodiscover, MRS, HCW, mail flow, EOP/Defender integration).
Define M365 tenant baselines, multi-geo strategy, mailbox placement, mail flow, retention, discovery, and compliance.
Evaluate and steward modernization initiatives (public folders retirement, EWS deprecation, basic-to-modern auth, TLS/cipher hardening, Exchange CU/Schema planning).
Architect global message routing resiliency, hybrid coexistence, and business continuity (DR runbooks, failover).
Set and enforce global technical standards, guardrails, and configuration policy-as-code for Exchange Online, Teams, and related M365 services.
Partner with Security, Risk, Legal on DLP, eDiscovery, Litigation Hold, Retention, Information Protection, Safe Links/Attachments, and Tenant Allow/Block Lists.
Establish and monitor access models, PIM, Conditional Access, and secure mail transport (SPF/DKIM/DMARC, MX/connector strategy).
Lead lifecycle and vulnerability management for Exchange servers, hybrid agents, connectors, and third-party integrations.
Define and measure SLOs/SLAs, error budgets, and KPIs; implement observability (mail flow, queue health, throttling, latency, client experience).
Drive problem management and major incident command for messaging/M365; lead post-incident reviews with corrective actions and automation-first fixes.
Ensure capacity planning, patching, CU/ringed deployments, change management rigor, and rollback strategies.
Serve as technical leader/escalation point for regional teams and managed service partners; coach engineers.
Partner with Product, Security, Network, Identity, and Collaboration teams for cohesive services.
Communicate complex technical decisions to executive/business stakeholders; create decision records and architecture standards.
Represent Bunge with vendors, influence product roadmaps, and manage licensing/feature utilization.
Focus on adoption & experience (end-user satisfaction, executive communications quality, measurable productivity outcomes like Copilot readiness).
Hybrid work with global collaboration across time zones; occasional travel; participation in on-call rotation with follow-the-sun support.

Required Qualifications:

10+ years in enterprise messaging/collaboration platforms, with deep expertise in global-scale Exchange Online and hybrid Exchange.
Proven ownership of enterprise-grade architectures (hybrid co-existence, transport/routing, compliance, Exchange upgrades/CUs).
Demonstrated leadership in SRE/operational excellence (SLOs/SLAs, observability, incident/problem management, post-incident improvement).
Ability to influence across cultures/time zones, translate business needs into technical roadmaps, and drive rapid modernization.

Preferred Qualifications:

Experience with Teams (policies, meetings, federation), Copilot readiness, Viva alignment, Power Platform tenant governance (DLP, environment strategy), SharePoint/OneDrive, Purview.
Familiarity with Entra ID (Azure AD) identity governance, Conditional Access, and app registrations/service principals for automation.
Exposure to SIEM/SOAR integrations, transport logging, and forensic workflows.
Experience in regulated industries (audit, SOX, eDiscovery).
Background in network fundamentals for messaging (DNS, SMTP, TLS, firewalls, proxies), and certificate lifecycle management.
Prior experience guiding managed service providers and leading cross-functional engineering initiatives.

Preferred Certifications:

Microsoft 365 Certified: Administrator Expert
Microsoft Certified: Exchange Online/Modern Desktop/Teams Administrator Associate (or successor certifications)
SC Series: Information Protection, Security Operations, Identity & Access Administrator
ITIL, SRE Foundation/Practitioner, or DevOps-oriented certifications

At Bunge (NYSE: BG), our purpose is to connect farmers to consumers to deliver essential food, feed and fuel to the world. As a premier agribusiness solutions provider, our team of ~37,000 dedicated employees partner with farmers across the globe to move agricultural commodities from where they're grown to where they're needed-in faster, smarter, and more efficient ways. We are a world leader in grain origination, storage, distribution, oilseed processing and refining, offering a broad portfolio of plant-based oils, fats, and proteins. We work alongside our customers at both ends of the value chain to deliver quality products and develop tailored, innovative solutions that address evolving consumer needs. With 200+ years of experience and presence in over 50 countries, we are committed to strengthening global food security, advancing sustainability, and helping communities prosper where we operate. Bunge has its registered office in Geneva, Switzerland and its corporate headquarters in St. Louis, Missouri. Learn more at Bunge.com.

Every day our people exemplify these values, which represent Bunge at its core:
• We Are One Team - Collaborative, Respectful, Inclusive
• We Lead The Way - Agile, Empowered, Innovative
• We Do What's Right - Safety, Sustainability, With Integrity

If this sounds like you, join us! We value and invest in people who believe in our purpose and are excited to live it every day - people who are #ProudtoBeBunge

Nearest Major Market: St Louis
Job Segment: Developer, Sharepoint, Information Security, Compliance, Engineer, Technology, Legal, Engineering

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Job Post Date: 02/19/26