ProfileSoft Skills (2000-today)Strategy & Tra...n (2013-today)Thought Leadership (1996-today)Hard Skills (1994-today)Business & Dom...e (1999-today)Formal People ...t (2015-today)Stakeholder En...s (2000-today)International ...e (2000-today)Coaching & Mentoring (2000-today)Value & ImpactSIG (2013-2019)AVIV (2022-today)Value & ImpactIncision (2019-2020)eBay (2020-2022)Authoring (1996-today)Professional N...s (1999-today)Open Source Software (2006-today)Social Media P...e (2006-today)Value & ImpactAVIV Group (2022-today)SIG (2013-2019)Value & ImpacteBay (2020-2022)CKISIP (Belgrade, 1999-2005)Formal Education (1994-2005)Incision (2019-2020)Sokrates (2019-)Freelance (1994-1999)TU/e (2008-2011)Backbase (2012-2013)CWI (2006-2008)SIG (2013-2019)TU/e (2009-2012)Value & ImpactBackbase (2012-2013)AVIV GroupBelgrade (1999-2005)CWI (2006-2009)IncisioneBayAVIV Group (2022-today)Incision (2019-2020)SIG (2015-2019)SIG (2013-2019)BelgradeTU/e (2008-2012)CWI (2006-2008)AVIV (2022-today)Backbase (2012-2013)Incision (2019-2020)eBay (2020-2022)eBay (2020-2022)SIG (2013-2019)AVIV (2022-today)CWI (2006-2008)TU/e (2008-2012)Belgrade (1999-2005)Incision (2019-2020)Backbase (2012-2013)Belgrade (2000-2005)TU/e (2008-2012)SIG (2013-2019)AVIV (2022-today)CWI (2006-2008)Incision (2019-2020)eBay (2020-2022)Backbase (2012-2013)Getting Job Done as a ManagerGrowing PeopleEffective Coll...e StakeholdersEffective Coll...verse CulturesEconomic risk ... (50+ clients)Tech strategy ... (50+ clients)Risk assessments (50+ clients)Due DiligencesCo-Design Transformation StrategyCo-Designing T...Strategy PivotM&A & Investme...Due DiligencesBrand strategy...g and merging)Org strategy (...ring strategy)M&As analysesInfluencing Big DecisionsBuilding Bridg...ineering TeamsDefining Product & Tech StrategyApp-Based Product ModelMobile strategy (prioritization)Introducing OK...k (with a COO)Post-merger transparencyPublic cloud m...AWS; GCP->AWS)eBay Data Warehouse migrationobren.io/toolsResearch Articles (1996-today)obren359.comResearch & Practice BookUnderhood BlogGrounded Architecture BookDesign Instability BookOpenCVEIEEE Computer ...y (1996-today)ACM (1996-today)IEEE Software BoardChief Architects NetworkACM Senior Member (2022)Chief Architects ForumsLACOSS contributi...er of Sokratesgithub.com/zel...novic/sokratesScan of key OS... organizationsLinkedIn (~3,000 followers)Twitter (~1,500 followers)Personal Learning and GrowthBringing Exter...into CompaniesAccelerated HiringCompany PromotionReal-estate platform architectureArchitecture A...orm (Hands-On)Software analy...ing (Hands-On)Client projects (Analyzed)Getting Job Done as EngineerRealism in Planning as a ManagerPragmatism in Executive RolesAuthority in Vendor NegotiationsTechnical Auth...mong EngineersCloud-native marketplace platformArchitecture A...orm (Hands-On)Visual C++, VB...SS, JavaScriptSQL Server, Oracle, MA AccessWindows, UNIX, SolarisUndergraduate Studies (1994-1999)Master Studies (1999-2002)PhD Studies (2002-2005)Cloud-native (...emand platformJava, Maven, A...ctions, DockerAnalysis: Java...otlin, Dart...Clipper, Visua...vascript, VRMLSQL Server, Oracle, MA AccessSketchify: Jav...3, SVG, JavaFXJava, HTML, CS...Portal, OAuth2Eclipse, Intel...s, Jira, MavenAMICO: Java, J...3, SVG, JavaFXExposure to multiple industriesSoftware Quali...and ConsultingManagement ConsultingIndustrial CollaborationsHigher EducationResearch SectorConnecting TO Customer ProblemsTransferring K... Among DomainsBridging Domains and TeamsBankingDigital BankingOnline MarketplacesListingsReal-EstateB2BHighly regulat...y and defence)Research institutionsHigher EducationResearch SectorHealthcareSurgical EducationOnline MarketplacesListingsInteresting / Difficult casesTeam buildingTeam optimizations and re-orgsManaging senio...l contributorsManaging managersDefining caree...d engineering)Performance managementCareer developmentHiringCo-designing r...unt reductionsNear-shore team formingInteresting / Difficult casesHiringDefining a rol...product ownersInteresting / Difficult casesTeam buildingCareer developmentPerformance managementCTOs (internal and clients)Management ConsultantsTechnical ConsultantsB2B Sales (dem...sits, support)Software EngineersArchitectsInvestors (M&A...e Dilligences)C-level executives (Clients)Project Managers (Clients)Program Managers (Clients)Product Managers (Clients)Military and Defence SectorResearch InstitutionsSmall BusinessIndustrial DesignersExperience DesignersResearchersUniversity ProfessorsGraduate StudentsMaster StudentsPhD StudentsNL Research Funding CommitteesEU Research Funding CommitteesHigh-Tech Industrial PartnersResearchersUniversity ProfessorsGraduate StudentsMaster StudentsPhD StudentsNL Research Funding CommitteesEU Research Funding CommitteesHigh-Tech Industrial PartnersCTOCFOCOOCMOInvestorsEngineering DirectorsProduct DirectorsCTOSoftware EngineersProduct OwnersEngineering ManagersArchitectsSalesClientsCEO (manager)CMO (marketing)CMO (medical)COOCFOGroup CTOCTOsEngineering DirectorsProduct DirectorsThe NetherlandsGermanyFranceSpainItalyBelgiumDenmarkUKCanadaUSAAustraliaChinaSouth AfricaBelarusAustriaThe NetherlandsGermanyFranceBelgiumUSADenmarkIndonesiaMalaysiaGermanyFranceBelgiumIsraelUKCroatiaThe NetherlandsGermanyFranceItalySpainUSAThe NetherlandsUKSerbiaNorwayGreeceSpainThe NetherlandsEgyptSerbiaThe NetherlandsSwitzerlandSoftware Engin...is SupervisionTeaching maste...n FON BelgradeTeaching under...ademy BelgradePhD student daily supervisionMaster student...ct supervisionPost-master projects (USI)Mentoring Technical Consultants1:1 Mentoring ...pal ArchitectsAd-hoc mentori...in Other TeamsOrganizing Guilds and SummitsMaster student...ct supervisionTeaching maste...n VU AmsterdamProduct owner ... and mentoringExternal team mentoringMentoring Senior ArchitectsOrganizing Guilds and SummitsPartner and cl... and mentoringOnboarding and training new hiresLegacyTypeScript, No... Kotlin, ReactAWS (Lambda, E...hena, Glue...)GitHub, Circle...aform, DataDogJava, JavaScri...on, TypeScriptHTML5, CSS, D3, SVGJava, Javascri..., CSS, D3, SVGAWS, MySQL, MongoDBIntelliJ, Ecli...Security ToolsJava (J2EE, Sp...ngular, React)Pega, Mendix, ..., Hadoop, SQL)Public Cloud (AWS, Azure)Java, GoAWS (Lambda, S... RDS, Cognito)GCPLegacy: PHP, MySQL, WordPressJava, JavaScri...on, TypeScriptHTML5, CSS, D3, SVGAngular, AWS (...less FrameworkMobile: Ionic, PWAWebGL, Unity, Oculus VRHLS (HTTP Live Streaming)Legacy: PHP, MySQL, WordPressPublic SectorUtilities & TelecomProduct CompaniesFinanceMaintainabilitySecurityArchitecturePerformanceReliabilityEngineering PracticesOrganizationC-Level AdvisoryRisk Analysis and MitigationTech Strategy ...dmap Co-DesignM&A Due DiligencesPhilipsOcé TechnologiesDAF TrucksRademakerTomTomABN AmroPostFinanceComplicatedPositiveStopping Defau...ner EngagementBuilding near-...m from scratchGrowing Product Owner RoleFrontend Developer GrowthInappropriate BehaviorMilitary Technical AcademyMilitary Institute of TechnologyMilitary AcademyMinistry of DefenceMilitary Research InstitutesInstitute for ...Sciences VincaInstitute for Physics BelgradeInstitute for Chemistry BelgradeSmall Software CompaniesSmall Healthcare CompaniesAngular, Vue, PHPJava, MySQL, WordPressKubernetes, Kafka, Elastic SearchPhysical data centersGCPTFS, GitLab, Bitbucket, JenkinsRijkswaterstaatBelastingdienstGVBEPOPolitieIGZNLOVlaamse OverheidGemeente UtrechtICTUDUOTLS / OV-ChipkaartVluchtelingenwerkJeugdzorgWoningnetDHLZiggoProRailT-MobileKPNVodafoneEnecoSBMExactCentricMendixOutSystemsBackbaseABN AMROBTPNVoogd & VoogdDe Lage LandenConflictsLay-offsPerformance management exitsPrincipal Architects GrowthCareer Ladder ...(Staff+ roles)9.0 (8.9 to 9....ears in a row)Product Org (overlapping scope)Engineering Di... and mandates)