03/30/2026 updated

**** ******** ****
100 % available

Technical Scrum Master | Engineering Background | Enterprise & AEM Delivery

Alesd, Romania
Germany +2
info: Germany, Austria, Hungary
Gábor Dénes College, Budapest (Hungary) – Computer Science / Information Technology
Alesd, Romania
Germany +2
info: Germany, Austria, Hungary
Gábor Dénes College, Budapest (Hungary) – Computer Science / Information Technology

Profile attachments

Akos-Peteri-SCRUM-MASTER-EN.docx
Akos-Peteri_Scrum-Master-de.pdf
Akos-Peteri_Scrum-Master-en.pdf
Akos-Peteri-AEM-Expert-en.pdf
Akos Peteri-Java-Backend-de.pdf

About me

Technical Scrum Master with strong engineering background. Former architect and long-time freelance AEM Java backend developer. Experienced in stabilizing, understanding and evolving complex legacy enterprise systems and supporting distributed teams in delivering high-quality software.

Java (Programming Language)Agile MethodologyJIRABusiness Process ImprovementDistributed DevelopmentProject ManagementScrum MethodologyBackendSafety Principles
Scrum Master Focus:
Supporting Scrum teams in applying Agile principles in a pragmatic way, adapted to real project constraints. Facilitating Scrum events with a focus on outcomes, team ownership and continuous improvement rather than process formalism. Working closely with Product Owners and stakeholders to improve backlog clarity, transparency and delivery focus. Identifying impediments and addressing them on both team and organizational level.

Quality-Focused & Team-Aligned – defining clear acceptance criteria and well-structured backlog items while leveraging team strengths to deliver high-quality, efficient outcomes.

Agile & Collaboration Experience:
Experience in multi-team and distributed setups, fostering collaboration between development teams, Product Owners, architects and management. Strong focus on communication, alignment and psychological safety to enable sustainable team performance and predictable delivery.
Worked as Scrum Master for an international distributed development team collaborating remotely between Switzerland and North Macedonia while coordinating closely with stakeholders on the client side in Switzerland.

IT & Engineering Background:
Former ressort architect and AEM solution architect with many years of hands-on experience as a freelance Senior AEM backend developer in Scrum teams. Strong understanding of engineering realities, technical constraints and delivery dependencies, enabling effective collaboration with technical roles without stepping out of the Scrum Master role.

Legacy System Expertise:
Strong ability to quickly understand complex legacy enterprise systems, stabilize existing solutions and pragmatically evolve them. Experienced in analysing mature codebases and gradually improving maintainability, delivery processes and system stability in large-scale enterprise environments.

This background allows me to act as a pragmatic Scrum Master, bridging Agile ways of working and real-world IT environments while keeping a clear focus on team effectiveness and sustainable delivery.

Availability:
Open for remote projects within Europe. Occasional on-site presence in Austria, Germany or Switzerland possible.

For more details on projects, please refer to my CV.

Languages

GermanFluentEnglishFluentFrenchBasic knowledgeHungarianNative speaker

Project history

Agile Delivery Consultant – Strong Technical Background

Other

1000-5000 team member

  1. Taking ownership of the frontend layer up to the booking funnel within an AEM 6.5 Scrum team, covering multiple packages with AEM frontend and backend components
  2. Supporting delivery of technically complex, SEO-relevant pages representing the full flight portfolio of an airline, ensuring clarity, quality and sustainable implementation
  3. Actively contributing to backlog refinement by clarifying technical scope, dependencies and implementation options together with the team and stakeholders
  4. Supporting stable delivery by maintaining build mechanisms and development workflows aligned with the team’s way of working
  5. Improving team effectiveness by documenting environment setup and enabling fast onboarding of new team members
  6. Supporting the migration from Classic UI to Touch UI as part of the AEM 6.5 upgrade, including coordination across teams
  7. Coordinating with developers from other teams, acting as a point of alignment for shared AEM components and cross-team solutions
  8. Identifying issues and delivery risks early through analysis, bug fixing and maintenance in a legacy-heavy codebase
  9. Increasing transparency by documenting legacy code while working on it and sharing knowledge via Confluence
  10. Communicating effectively with team members and stakeholders in both German and English

Agile Delivery Consultant – Strong Technical Background (AEM)

Unitymedia

Telecommunications

500-1000 team member

  1. Taking shared responsibility for the AEM stack within a newly formed Scrum team, to deliver AEM components across three packages
  2. Collaborating closely with the Product Owner and the Scrum Master on backlog refinement, technical clarity and pragmatic application of Scrum practices
  3. Supporting delivery by setting up and maintaining build mechanisms and development workflows aligned with the team’s way of working
  4. Improving team effectiveness by documenting the AEM environment setup, enabling fast onboarding of new team members
  5. Supporting the upgrade from CQ 5.6.1 to AEM 6.2, including analysis of technical dependencies and risks
  6. Coordinating, consulting and contributing to the design and implementation of new AEM components and shared solutions
  7. Supporting stable delivery through analysis, bug fixing and maintenance activities ( revision cleanup and Oak TAR compaction)
  8. Analyzing dispatcher configurations, logs and specifications to identify performance and stability issues
  9. Collaborating with Product Owner and Scrum Master and management on the design of a new price caching solution in AEM, and coordinating its implementation with external partners
  10. Supporting quality assurance by preparing smoke tests using Selenium
  11. Coordinating data flow and REST service changes with backend teams in an international setup, communicating in German and in English

Scrum Master / AEM Architect / Senior AEM Backend Developer

Other

50-250 team member

  1. Working as an AEM developer and architect in Scrum teams across multiple enterprise projects
  2. Implementing a shop feature for an AEM-based platform, including design and implementation of REST APIs from frontend integration down to the MySQL database layer
  3. Supporting feature development and bug fixing in ongoing delivery for enterprise customers such as Lufthansa
  4. Taking responsibility for an upgrade from EDA 5.6.1 to AEM 6.3, including system analysis, conceptual design, effort estimation and planning of upgrade activities
  5. Organizing and coordinating upgrade tasks in close collaboration with the client
  6. Acting as Scrum Master in a Scrum team of around six members, facilitating collaboration and supporting pragmatic Scrum practices
  7. Supporting quarterly releases by performing requirement analysis, conceptualization and estimation of new features and existing issues
  8. Maintaining direct communication and coordination with customers during delivery
  9. Contributing as an AEM backend developer in parallel Scrum teams, implementing features and fixing defects
  10. Working as AEM Architect on a VideoWall solution, covering requirements analysis, conceptual design and implementation together with an AEM developer

Key focus:
Enterprise AEM delivery, upgrades, backend development, Scrum-based collaboration, client-facing coordination.

Senior AEM Developer / Scrum Team Member

Prime Force Basel

Other

50-250 team member


Swiss Meteorological Service
Period: 1 month
Tasks and Responsibilities during the project:
  1. Supporting an AEM-based platform as a senior backend developer
  2. Performing analysis, design and implementation of new features within an enterprise AEM environment
  3. Analyzing existing functionality, fixing defects and improving overall quality assurance
  4. Contributing to stable delivery through pragmatic, quality-focused backend development

Large Swiss Insurance Company
Period: 8 months
Tasks and Responsibilities during the project:
  1. Working as a senior AEM backend developer on a large-scale AEM platform for a large Swiss insurance company
  2. Designing, implementing and testing the integration of third-party web services via a processing engine
  3. Analyzing, designing and implementing business logic for the creation of agency websites based on the Swiss geographic map
  4. Evaluating different solution approaches and implementing an agency search for the new company website
  5. Designing and implementing a content search solution by extending AEM’s standard search with partial text search capabilities
  6. Supporting quality-focused delivery through testing, bug fixing and continuous improvement of backend functionality

Ressort Architect / Agile Coach

CSS Insurance AG

Insurance

1000-5000 team member

  1. Acting as Ressort Architect for multiple online portal solutions (Extranet, Intranet and mobile platforms)
  2. Performing software and system analysis in the context of Continuous Deployment using TeamCity, Jenkins and Bamboo
  3. Analyzing code quality, performance and operational behavior using tools such as SonarQube, Dynatrace, Logstash, Elasticsearch and Kibana
  4. Planning and organizing continuous technical optimizations to improve performance and stability of portal solutions
  5. Driving performance improvements through delta load optimization, database tuning and JPA optimization
  6. Analyzing and designing the integration of an Activity Tracker solution
  7. Supporting teams with performance optimization and technical decision-making
  8. Coaching team members on clean code practices and Scrum principles

Key focus:
Architecture, performance optimization, CI/CD, technical coaching, Scrum-aware collaboration in an insurance enterprise environment.

Certificates

Professional Scrum Master - PSM I

scrum.org

2013

Professional Scrum Developer - PSD I

scrum.org

2013

Contact form

Log in to get in touch

You need to be logged in to use the contact form.

Sign upLog in