Software and platform initiatives in need of fresh momentum
Solution Architect & IT Consultant (freelance)Java and Spring Boot for backend servicesC# and .NET for enterprise integrationsPython for automation and AI workflows...
Solution Architect & IT Consultant (freelance)
In freelance assignments, I act as a hands-on delivery partner for software and platform initiatives thatneed momentum, from shaping the problem and scope to delivering technically sound, practicalsolutions.
End-to-end delivery:
Cover requirements, architecture, development, testing, deployment andongoing support across the full lifecycle.
Pragmatic execution:
Keep progress moving in complex technology landscapes while making sensibletrade-offs between speed, quality and maintainability.
Outcome focus:
Help define and implement the right features, not just build requested ones, withclear communication and calm ownership.
Cross-context experience:
Bring delivery practices proven in pricing engines, onboardingoptimization, platform migrations, inventory systems and enterprise environments.
AI-assisted workflow:
Use AI tooling throughout the development process to reduce cycle time andincrease output quality.
SELECTED PROJECTS
QR-code loyalty system:
Delivered a maintainable loyalty solution focused on real operational use andsimple rollout.
AI-driven car bidding app:
Built an AI-supported bidding workflow balancing product usability withrobust technical foundations.
Focus
Discovery & Scoping
Architecture
Full-Stack Delivery
QA & Testing
Deployment
Continuous Support
Core delivery stack: GitHub Actions/ Jenkins für CI/CD-Pipelines ? mit GitHub Copilot und Claude Sonnet, integriert in den Entwicklungs-Workflow für eine schnellere Bereitstellung in höherer Qualität.
Java and Spring Boot for backend servicesC# and .NET for enterprise integrationsPython for automation and AI workflowsREST APIs and microservices for system architectureFargateEC2S3CloudFrontPostgreSQL and DynamoDB for dataAWS for allcloud infrastructureECSRoute 53
Independent
Vienna (Austria)
2 years 8 months
2023-08 - 2026-03
Receivables Management
Engineering ManagerJava (8/17/21)C#Angular...
Engineering Manager
Leading 20+ engineers across Austria and Germany. Accountable for technical strategy, deliveryexcellence and team wellbeing in the debt collection domain.
Scope & Leadership:
Line manager for 20+ team members (developers, QAs, operations, architect,seniors, juniors, externals) across locations with regular on?site visits.
Technical Stewardship:
Co?architect for key initiatives, taking primary ownership for some projectswhile my architect colleague leads others.
Delivery & Process:
Owns roadmap, capacity planning and prioritization with Product & Business;safeguards deadlines and promotes small, frequent releases.
Automation & Cloud:
Introduced Xray/Jira automation on every GitHub commit/PR; led Lift & Shiftmigration of 30+ applications from bare metal and mixed VMs to AWS.
SELECTED PROJECTS
AWS migration program: Lift & Shift of 30+ debt collection applications to AWS with zero downtime.
AI WhatsApp chatbot: Multilingual chatbot powered by AI enabling smarter, self?service customercommunication.
Fast client onboarding: Introduced Nifi (ETL tool) and integration framework, reducing onboardingtime from ~3 weeks to ~3 days.
SAP & service desk integration: SAP integration and onboarding of multiple external service deskproviders.
Automated quality gates: Introduced automated quality gates on every GitHub commit and pullrequest with Selenium and Cucumber via Xray and Jira integration.
Lead of Application DevelopmentJavaReactStorybook...
Lead of Application Development
Leading (technical/line manager) twelve Java (backend, frontend, full-stack) developers, QA and DevOpsengineers in application development.
Leadership:
Line manager for twelve engineers (backend, frontend, full-stack, QA, DevOps); scaledteam to twenty through active hiring and onboarding
Architecture:
Core Member of Architecture Review Board; architecture advisor across multipleproduct streams
Collaboration:
Steering internal/external developer teams collaboration, delivery gates; floatingleadership in digital transformation
Growth:
Hiring and onboarding; agile advisor; QA support
Development:
Implementing sensitive and business-critical code parts (e.g. cost calculation logic)
FOCUSING
Process Excellence:
Spotting weak points in development process and communication betweenProduct Owners and developers; mitigating solution rejection rate; improving delivery and deploymentprocess
UI/UX Alignment:
Introduced Figma and Storybook to create a shared visual language between UXdesigners and developers, enabling component-driven React development with reusable componentlibraries
Backend Services:
Oversaw design and delivery of distributed backend services on OpenShift privatecloud, including decomposed service architectures aligned with cloud-native principles
API Standards:
Championed API design and integration best practices, standardising interfacesthrough OpenAPI specifications and Swagger files
Team Wellbeing:
Listening to team needs, resolving day-to-day issues; transparent communication ondecisions and organisational context; coaching and helping team members grow
Stakeholder Bridge:
Building bridge between team and product/business; mitigating tension betweeninternal and external developers
Led a team of eight Java developers through a complex carve?out from Paysafe into Unzer while keepingthe Paylater platform stable.
Ownership:
Responsible for IT carve?out, architecture advice, Tableau ownership and sensitivebusiness logic.
Process & Quality:
Introduced quality gates, increased test coverage and streamlined CI/CD.
Collaboration:
Worked hand?in?hand with business on BI?driven financial and operational decisions.
SELECTED PROJECTS
Carve?out to AWS:
6?month migration from Paysafe on?prem to Unzer AWS with no revenuedisruption.
Bank partner change:
Planned and executed bank partner migration for Paylater.
Technical?debt campaign:
?Targeted reduction of long?standing technical debt to stabilize coreservices.
JavaTableauAWS LambdaCI/CDGit
Paysafe / Unzer ? Paylater
Vienna (Austria)
2 years 10 months
2017-08 - 2020-05
Provisioning of enterprise platforms
Technical Team LeadJavaSpringHibernate...
Technical Team Lead
Led 11 engineers (6 for Uniqa Insurance, 5 for Johnson & Johnson) delivering enterprise platforms whileowning KPIs and customer satisfaction.
Team & Delivery:
Responsible for team composition, KPIs, releases and reporting to Uniqa, JnJ andBraintribe; disciplinary lead and single point of contact for customers.
Architecture & Governance:
Took key architecture decisions, participated in multi?platform meetingsand served on Braintribe?s Delivery Committee; project manager for Uniqa beyond own team scope.
SELECTED PROJECTS
Java 8 migration ? Uniqa:
Led migration of core systems to Java 8 with no service disruption.
Uniqa Insurance Platform:
Implemented and rolled out new platform across multiple business areas.
ADx (DMS) rollout:
Introduced document management into several JnJ departments.
CAPRI/DHF:
?Cross?vendor project with SoftwareAG teams in India for JnJ, coordinating delivery andintegration.
JavaSpringHibernateAWS
Braintribe Technology GmbH
Vienna (Austria)
3 years 10 months
2013-11 - 2017-08
Further development of the e-commerce backend
Backend Development Team LeadLinuxJavaThymeleaf...
Backend Development Team Lead
Led 7?11 Java developers and drove the evolution of the e?commerce backend from monolith tomicroservices.
Leadership:
Hosted Scrum events, refined requirements on?site in Switzerland and owned corearchitectural decisions.
SELECTED PROJECTS
Monolith ? microservices:
Split a large monolithic backend into Spring Boot microservices on AWSECS.
Dynamic pricing engine:
Implemented pricing logic recalculating prices 5× per day vs. competitorsand updating Amazon automatically.
Inventory platform:
Built inventory system from Android scanning app to web UI and reporting,reducing manual work to a minimum.
Overlay shipping platform:
?Created overlay platform orchestrating inventories and carriers via SQS toalways choose the cheapest shipping option and avoid lost scans.
PROFILE I help companies turn business problems into working software, and I step in when platforms, processes,or products need to move forward without unnecessary friction. My background combines hands-ondelivery, architecture, modernization, and independent execution across AWS, integrations, and customsoftware. Recent freelance work includes a QR-code loyalty system and an AI-driven car biddingapplication. I am a fit for teams that want a senior partner who can own delivery, communicate clearly, and keepmomentum moving.
Einsatzorte
Einsatzorte
Wien (+150km)
Deutschland, Schweiz, Österreich
möglich
Projekte
Projekte
3 months
2026-04 - now
Software and platform initiatives in need of fresh momentum
Solution Architect & IT Consultant (freelance)Java and Spring Boot for backend servicesC# and .NET for enterprise integrationsPython for automation and AI workflows...
Solution Architect & IT Consultant (freelance)
In freelance assignments, I act as a hands-on delivery partner for software and platform initiatives thatneed momentum, from shaping the problem and scope to delivering technically sound, practicalsolutions.
End-to-end delivery:
Cover requirements, architecture, development, testing, deployment andongoing support across the full lifecycle.
Pragmatic execution:
Keep progress moving in complex technology landscapes while making sensibletrade-offs between speed, quality and maintainability.
Outcome focus:
Help define and implement the right features, not just build requested ones, withclear communication and calm ownership.
Cross-context experience:
Bring delivery practices proven in pricing engines, onboardingoptimization, platform migrations, inventory systems and enterprise environments.
AI-assisted workflow:
Use AI tooling throughout the development process to reduce cycle time andincrease output quality.
SELECTED PROJECTS
QR-code loyalty system:
Delivered a maintainable loyalty solution focused on real operational use andsimple rollout.
AI-driven car bidding app:
Built an AI-supported bidding workflow balancing product usability withrobust technical foundations.
Focus
Discovery & Scoping
Architecture
Full-Stack Delivery
QA & Testing
Deployment
Continuous Support
Core delivery stack: GitHub Actions/ Jenkins für CI/CD-Pipelines ? mit GitHub Copilot und Claude Sonnet, integriert in den Entwicklungs-Workflow für eine schnellere Bereitstellung in höherer Qualität.
Java and Spring Boot for backend servicesC# and .NET for enterprise integrationsPython for automation and AI workflowsREST APIs and microservices for system architectureFargateEC2S3CloudFrontPostgreSQL and DynamoDB for dataAWS for allcloud infrastructureECSRoute 53
Independent
Vienna (Austria)
2 years 8 months
2023-08 - 2026-03
Receivables Management
Engineering ManagerJava (8/17/21)C#Angular...
Engineering Manager
Leading 20+ engineers across Austria and Germany. Accountable for technical strategy, deliveryexcellence and team wellbeing in the debt collection domain.
Scope & Leadership:
Line manager for 20+ team members (developers, QAs, operations, architect,seniors, juniors, externals) across locations with regular on?site visits.
Technical Stewardship:
Co?architect for key initiatives, taking primary ownership for some projectswhile my architect colleague leads others.
Delivery & Process:
Owns roadmap, capacity planning and prioritization with Product & Business;safeguards deadlines and promotes small, frequent releases.
Automation & Cloud:
Introduced Xray/Jira automation on every GitHub commit/PR; led Lift & Shiftmigration of 30+ applications from bare metal and mixed VMs to AWS.
SELECTED PROJECTS
AWS migration program: Lift & Shift of 30+ debt collection applications to AWS with zero downtime.
AI WhatsApp chatbot: Multilingual chatbot powered by AI enabling smarter, self?service customercommunication.
Fast client onboarding: Introduced Nifi (ETL tool) and integration framework, reducing onboardingtime from ~3 weeks to ~3 days.
SAP & service desk integration: SAP integration and onboarding of multiple external service deskproviders.
Automated quality gates: Introduced automated quality gates on every GitHub commit and pullrequest with Selenium and Cucumber via Xray and Jira integration.
Lead of Application DevelopmentJavaReactStorybook...
Lead of Application Development
Leading (technical/line manager) twelve Java (backend, frontend, full-stack) developers, QA and DevOpsengineers in application development.
Leadership:
Line manager for twelve engineers (backend, frontend, full-stack, QA, DevOps); scaledteam to twenty through active hiring and onboarding
Architecture:
Core Member of Architecture Review Board; architecture advisor across multipleproduct streams
Collaboration:
Steering internal/external developer teams collaboration, delivery gates; floatingleadership in digital transformation
Growth:
Hiring and onboarding; agile advisor; QA support
Development:
Implementing sensitive and business-critical code parts (e.g. cost calculation logic)
FOCUSING
Process Excellence:
Spotting weak points in development process and communication betweenProduct Owners and developers; mitigating solution rejection rate; improving delivery and deploymentprocess
UI/UX Alignment:
Introduced Figma and Storybook to create a shared visual language between UXdesigners and developers, enabling component-driven React development with reusable componentlibraries
Backend Services:
Oversaw design and delivery of distributed backend services on OpenShift privatecloud, including decomposed service architectures aligned with cloud-native principles
API Standards:
Championed API design and integration best practices, standardising interfacesthrough OpenAPI specifications and Swagger files
Team Wellbeing:
Listening to team needs, resolving day-to-day issues; transparent communication ondecisions and organisational context; coaching and helping team members grow
Stakeholder Bridge:
Building bridge between team and product/business; mitigating tension betweeninternal and external developers
Led a team of eight Java developers through a complex carve?out from Paysafe into Unzer while keepingthe Paylater platform stable.
Ownership:
Responsible for IT carve?out, architecture advice, Tableau ownership and sensitivebusiness logic.
Process & Quality:
Introduced quality gates, increased test coverage and streamlined CI/CD.
Collaboration:
Worked hand?in?hand with business on BI?driven financial and operational decisions.
SELECTED PROJECTS
Carve?out to AWS:
6?month migration from Paysafe on?prem to Unzer AWS with no revenuedisruption.
Bank partner change:
Planned and executed bank partner migration for Paylater.
Technical?debt campaign:
?Targeted reduction of long?standing technical debt to stabilize coreservices.
JavaTableauAWS LambdaCI/CDGit
Paysafe / Unzer ? Paylater
Vienna (Austria)
2 years 10 months
2017-08 - 2020-05
Provisioning of enterprise platforms
Technical Team LeadJavaSpringHibernate...
Technical Team Lead
Led 11 engineers (6 for Uniqa Insurance, 5 for Johnson & Johnson) delivering enterprise platforms whileowning KPIs and customer satisfaction.
Team & Delivery:
Responsible for team composition, KPIs, releases and reporting to Uniqa, JnJ andBraintribe; disciplinary lead and single point of contact for customers.
Architecture & Governance:
Took key architecture decisions, participated in multi?platform meetingsand served on Braintribe?s Delivery Committee; project manager for Uniqa beyond own team scope.
SELECTED PROJECTS
Java 8 migration ? Uniqa:
Led migration of core systems to Java 8 with no service disruption.
Uniqa Insurance Platform:
Implemented and rolled out new platform across multiple business areas.
ADx (DMS) rollout:
Introduced document management into several JnJ departments.
CAPRI/DHF:
?Cross?vendor project with SoftwareAG teams in India for JnJ, coordinating delivery andintegration.
JavaSpringHibernateAWS
Braintribe Technology GmbH
Vienna (Austria)
3 years 10 months
2013-11 - 2017-08
Further development of the e-commerce backend
Backend Development Team LeadLinuxJavaThymeleaf...
Backend Development Team Lead
Led 7?11 Java developers and drove the evolution of the e?commerce backend from monolith tomicroservices.
Leadership:
Hosted Scrum events, refined requirements on?site in Switzerland and owned corearchitectural decisions.
SELECTED PROJECTS
Monolith ? microservices:
Split a large monolithic backend into Spring Boot microservices on AWSECS.
Dynamic pricing engine:
Implemented pricing logic recalculating prices 5× per day vs. competitorsand updating Amazon automatically.
Inventory platform:
Built inventory system from Android scanning app to web UI and reporting,reducing manual work to a minimum.
Overlay shipping platform:
?Created overlay platform orchestrating inventories and carriers via SQS toalways choose the cheapest shipping option and avoid lost scans.
PROFILE I help companies turn business problems into working software, and I step in when platforms, processes,or products need to move forward without unnecessary friction. My background combines hands-ondelivery, architecture, modernization, and independent execution across AWS, integrations, and customsoftware. Recent freelance work includes a QR-code loyalty system and an AI-driven car biddingapplication. I am a fit for teams that want a senior partner who can own delivery, communicate clearly, and keepmomentum moving.
Vertrauen Sie auf Randstad
Im Bereich Freelancing
Im Bereich Arbeitnehmerüberlassung / Personalvermittlung