11/11/2026 updated

OS
100 % available

Senior IT Consultant | Solution Architect | Microsoft Platform

ARVIDSJAUR, Sweden
Only remote
Network Technician Program, Lära AB, Arvidsjaur (1996-1997)
ARVIDSJAUR, Sweden
Only remote
Network Technician Program, Lära AB, Arvidsjaur (1996-1997)

Profile attachments

Otavio_Darefjell_Santos_CV_EN_2026.pdf

About me

Senior IT consultant, solution architect and technical project manager with 25+ years in Azure, Microsoft 365 and SQL Server. I make the technical choices and lead the work all the way to handover, calmly and clearly, which is why my assignments often last. Available now, remote or hybrid.

Active DirectoryMicrosoft AzureCloud EngineeringData ArchitectureMicrosoft Exchange ServerFailover ClusteringHyper-VInformation Technology Infrastructure Libraries (ITIL)Internet Information Services (IIS)Microsoft NetworkingMicrosoft ServersMicrosoft SpecialistMicrosoft SQL ServersAzure SQLMicrosoft Business IntelligenceSQL Server Management StudioWindows PowerShellScrum MethodologyMicrosoft Power BIAzure Active DirectoryMicrosoft SharePointSolution ArchitectureSQL DatabasesSQL Server AgentTransact-SQLIT ArchitectureSQL Server Business IntelligenceAzure PowerShellMicrosoft InTuneKanbanMicrosoft TeamsCloud MigrationAzure Resource ManagerVMwareIT Project Management
Azure & Cloud
Cloud migration and lift-and-shift, Azure Virtual Machines, Azure SQL Database, Azure SQL Managed Instance, Azure Backup, Azure Site Recovery, Azure Monitor, Log Analytics, Hyper-V, VMware, cost optimization, FinOps and PowerShell automation.

Microsoft 365 & Identity
Microsoft 365, Exchange Online, SharePoint Online, Teams, Active Directory, Microsoft Entra ID, Entra Connect, Conditional Access, MFA, Intune and Microsoft Defender.

SQL Server & Data
SQL Server with HA/DR, failover clustering, replication and performance tuning, T-SQL, SSIS/ETL, data warehousing and Power BI.

Delivery & Leadership
Technical project leadership, product ownership, system architecture, outsourcing transitions, ITIL, Kanban and Scrum.

Solution Architecture
Architecture for business-critical and transaction-intensive platforms, ERP systems, three-tier architectures and integrations between ERP and e-commerce.

Security
Security standardization and hardening of Windows, IIS and SQL Server, Active Directory design and role-based administration.

Experience

Professional experience10+ years
Freelancer since2003

Languages

EnglishFluentSwedishNative speaker

Project history

IT Consultant | Technical Project Manager

Independent IT Consultancy
Independent IT consultancy work as IT Consultant and Technical Project Manager.

Product Owner | Solution & Azure Architect | Technical Project Manager

Logifresh AB
Led modernization of a business-critical ERP system for the fresh-food industry, replacing Royal Profile with a .NET and SQL Server platform. Owned system analysis, architecture, system design and the product technical direction. Coordinated a development team in Ukraine. Evaluated a three-tier architecture through a proof of concept with SQL Server, Dynamics NAV and SI Foodware. The platform was moved via Hyper-V to Azure as molnGreta, serving approximately 30-50 customer companies and around 200 users. Also designed, migrated and operated Azure and Microsoft 365 environments for customer companies.

Chairman of the Board | IT Lead

Järfälla Tennissällskap
Joined as IT Lead in 2015 and was elected Chairman of the Board in 2018, taking on overall operational and leadership responsibility for a major Swedish tennis club. Led operational planning, budget follow-up, recruitment and personnel matters. Turned recurring deficits into an annual surplus and led a broad digital transformation including Microsoft 365, Teams, SharePoint, booking systems, electronic access control, web and mobile payments and modern network infrastructure.

Cloud Architect & Migration Lead | previously DBA & Technical Specialist

UNICEF Sweden
Led the architecture and technical execution of the cloud program from 2018 to 2022, progressively migrating core services to Exchange Online, Azure and Microsoft 365, including identity and on-premises Active Directory, email, file servers, SharePoint, business applications and databases. Owned technical decisions, dependency analysis and migration sequencing, as well as monitoring, backup, disaster recovery, security hardening, performance and cost optimization. The server room was closed and on-premises hardware decommissioned with no user downtime during office hours.

DBA | System Developer

IACTA Development
Owned database architecture and developed backend and data warehouse components for a transaction-intensive gaming platform serving one of Europe's largest online casinos. Migrated the solution to new hardware and a new SQL Server cluster with high availability, disaster recovery and backup. Worked on database design and T-SQL development and optimization, and established shared standards and documentation.

Technical Project Manager | DBA | System Architect

City of Stockholm
Established shared development, test, delivery and operations environments for the city's property management systems, led the transition to outsourced server operations and contributed to the modernization of core systems, infrastructure and integrations. Worked across business, development and operations to support stable delivery, clear responsibilities and effective maintenance practices.

DBA | Architect | Technical Specialist

Apoteket (via Telia and Tieto Enator / EDB)
Designed a new architecture for Apoteket's transaction-intensive CRM platform, supporting business-critical telephony and voice-response systems. Covered performance tuning, target architecture, backup and change-management guidelines for SQL Server and Windows, as well as ETL-based data exchange and a central membership database.

IT Consultant | DBA | Technical Project Manager

Connecta / Adcore
IT Consultant, DBA and Technical Project Manager at Connecta / Adcore, Stockholm.

Security Specialist | Technical Specialist | DBA

Ericsson
Standardized security across Windows, IIS and SQL Server for the global telecom provider, using documented procedures and an automated configuration tool. Built a role-based administration and support site that automated routine work. Also designed and implemented Active Directory and migrated existing domains.

IT Consultant | DBA

Kentor
IT Consultant and DBA at Kentor, Stockholm.

IT Consultant | Technical Specialist

Marksoft
IT Consultant and Technical Specialist at Marksoft, Stockholm.

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