About the role

  • Senior Engineer at Trendyol managing identity and collaboration platforms like Active Directory and Exchange. Responsible for architectural design and operational continuity in a tech-driven environment.

Responsibilities

  • Own the design, operation, and continuity of Active Directory, Azure AD (Entra ID), Windows DNS, Exchange (On-Prem & Online), and Google Workspace infrastructures.
  • Design scalable, secure, and highly available architectures for email services and provide technical leadership across the end-to-end engineering lifecycle.
  • Take ownership of critical incidents within incident, problem, and change management (ITIL) processes; perform root cause analysis (RCA) and deliver permanent fixes.
  • Continuously improve identity and email operations through automation, self-service, and standardization approaches.
  • Proactively manage risks by considering security, access control, audit, and compliance requirements.
  • Design systems in ambiguous or complex scopes; guide technical decisions through risk, dependency, and effort assessments.
  • Act as a role model in technical documentation, architectural decisions, and RFC/ADR processes, raising quality and engineering standards.
  • Support mentorship and technical growth within the team; promote performance, reliability, and sustainability best practices.
  • Balance technical priorities with business needs and customer experience, delivering solutions with measurable business value.
  • Ensure clear, structured communication across teams and stakeholders to maintain technical alignment and enable shared decision-making.

Requirements

  • Active Directory (On-Prem)
  • Enterprise-scale AD architecture, multi-domain/forest designs, GPOs, delegation, and replication management.
  • Windows DNS
  • AD-integrated DNS, forward/reverse zones, conditional forwarders, and advanced troubleshooting of DNS-related identity issues.
  • Exchange Server (On-Prem & Hybrid)
  • Exchange 2016/2019 architecture, DAG, mail flow, certificate management, and Hybrid Exchange scenarios.
  • Exchange Online & Microsoft 365
  • Exchange Online tenant administration, mail flow rules, anti-spam/anti-phishing, DKIM/SPF/DMARC, and compliance policies.
  • Azure & Azure AD (Microsoft Entra ID)
  • Hybrid identity, Azure AD Connect, Conditional Access, MFA, RBAC, and identity auditing processes.
  • Google Workspace
  • Tenant, user, group, and access management; Gmail routing, security policies, and AD/Azure AD integrations.
  • Automation & Scripting
  • PowerShell and script-based automation; provisioning/de-provisioning and self-service implementations.
  • ITIL / Service Management
  • Strong technical ownership across incident, problem, and change management processes.
  • Monitoring & Troubleshooting
  • Advanced monitoring, root cause analysis, and performance optimization for identity and email services.

Benefits

  • Hybrid working model with flexibility: a schedule that helps you find the right balance between flexibility and team bonding, including work-from-abroad opportunities and a summer working model.
  • Customisable FlexBenefits budget: Adjust your daily meal allowance, choose your health insurance package (and extend it to your spouse or children), and pick from additional benefits like fuel support or Trendyol shopping credits.
  • Well-being support: Access to location-based in-house doctors, as well as psychologist and dietitian support, and HPV vaccination provision.
  • Personalised training allowance and learning opportunities: Use your annual budget for any training or conference of your choice, explore our Learning Management System (LMS) anytime, and join in-person learning sessions offered throughout the year.
  • Responsibility from day one: Take full ownership from the start in a culture where every voice is heard and valued.
  • A diverse, international team: Collaborate with global peers across our offices in Berlin, Amsterdam, Dubai, and beyond, in a startup-spirited and collaborative environment.
  • Opportunities to grow with the best: Tackle meaningful challenges, develop through hands-on experience, and grow with the support of expert guidance and global mentoring.
  • Meaningful connections beyond tasks: Be part of team rituals, events, and social activities that help us stay connected and inspired.

Job title

Senior System Engineer

Job type

Experience level

Senior

Salary

Not specified

Degree requirement

Bachelor's Degree

Tech skills

Location requirements

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