19.03.2026 aktualisiert

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Java Back-End Developer | Java Engineer | Java Software Developer

Ingersheim, Deutschland
Deutschland +6
info: Deutschland, Schweiz, Großbritannien, Liechtenstein, Belgien, Luxemburg, Niederlande
B.Sc. Aerospace Engineering, M.Sc. Industrial Engineering
Ingersheim, Deutschland
Deutschland +6
info: Deutschland, Schweiz, Großbritannien, Liechtenstein, Belgien, Luxemburg, Niederlande
B.Sc. Aerospace Engineering, M.Sc. Industrial Engineering

Profilanlagen

Diploma-OCPJSE11.pdf
Resume_VO_DEV.pdf
Resume_VO_PM.pdf

Über mich

Experienced and versatile engineering consultant with 9+ years of experience, focusing on architecting business solutions that increase revenue, optimize costs and create today a better tomorrow.

Skills

Clean CodeJavaData ArchitectureSoftware Design PatternsGradleHibernateJava Database ConnectivityJava Persistence APIApache MavenMySQLObjektorientierte Software-EntwicklungDropwizardWeb ServicesSpring BootBackendGitRestful ApisMicroservices
Experienced and versatile engineering consultant with 9+ years of experience, focusing on architecting business solutions that increase revenue, optimize costs and create today a better tomorrow. I am highly adaptable and client-focused, with a proven track record in development, management and product ownership across startups, scale-ups and enterprises.

I established quality as a top priority, believing firmly in delivering state-of-the-art, measurable results. With strong expertise in SaaS, APIs, cloud integrations & MVP design I thrive on empowering teams, simplifying complexity and generating measurable business value.
✅ Java
✅ Spring Boot & Dropwizard
✅ JDBC, JPA, Hibernate
✅ MySQL, H2, Derby
✅ REST API
✅ Web Services | Microservices
✅ Design Patterns
✅ Data structures & algorithms
✅ OOP
✅ KISS
✅ Clean Code
✅ Git
✅ Maven & Gradle

Erfahrung

Berufserfahrung5 - 10 Jahre
Freelancer seit2019

Sprachen

DeutschgutEnglischMutterspracheRumänischMuttersprache

Projekthistorie

Senior Consultant | Program Manager

General Engineering & Management Solutions

Internet und Informationstechnologie

50-250 Mitarbeiter

Project: Digitalization & Management Consulting
The clients are medium-sized companies - from industrial applications to logistics and manufacturing, looking to optimize their processes and bring in new technologies aiding them to scale and cut down costs.
  1. Managed cross-functional teams to deliver exceptional products for our customers: digitalization packages, performance audits and conceptual designs of processes.
  2. Increased revenue & visibility of our customers by implementing strategy & custom crafted planning
  3. Developed and implemented processes, strategic planning, business models & operations improving efficiency and overall customer satisfaction

Project: Allianz, Finance - Insurance
Allianz is one of the world’s largest insurance and financial services groups, providing a broad portfolio of insurance, asset management and risk mitigation. They were having issues with legacy systems and we helped them modernize their infrastructure leveraging AI-driven approaches.
  1. Built and scaled a high-performing cross-functional delivery team from the ground up, establishing processes, KPIs, and collaborations structures that increased delivery efficiency by 30% and ensured alignment between business and technology stakeholders
  2. Helped in architecting the end-to-end modernization strategy for Allianz’s core legacy systems, defining the roadmap, governance model and execution framework that enable scalable digital transformation across multiple business units

Senior Consultant

Swisslog AG

Transport und Logistik

5000-10.000 Mitarbeiter

Project: Swisslog AG, Intralogistics
Swisslog is a global leader in intelligent automation and robotics solutions for warehousing and intra logistics. They specialized in advanced WMS, material handling and data-driven automation systems.
  1. Led end-to-end delivery of automation programs for enterprise clients (EDEKA, REWE, Kaufland) with high throughput of over 10 million orders daily, improving operational efficiency by 20% through optimized rollout planning, stakeholder alignment and risk mitigation
  2. Coordinated cross-functional teams (SWR, robotics, support and product) to stabilize system performance and reduce downtime, prioritising the urgent and the important

Senior Consultant

Doordeck & Sentry Interactive

Internet und Informationstechnologie

10-50 Mitarbeiter

Project: Doordeck & Sentry Interactive, IoT - Integrations
The client is a leading UK-US IoT technology SaaS company specializing in innovative, smartphone-based access control solutions for businesses. Their focus on streamlined and secure access management sets them apart in the industry. They provide their services worldwide, having a unique product.
  1. Researched, designed & implemented Cloud-to-Cloud & on-prem integrations for an application with over 500k users that enabled new functionalities with different security providers creating a unique product on the market. Provided TTM for a yearly 10x revenue increase, attracting more clients for the product, that was in the spotlight as a top performer at GSX 2024
  2. Designed calendar syncing integrations with accesses, batch sharing locks, cryptographic encryption of keys, automatic sending of invites and more, generating a fast Time-To-Market.
  3. Reverse engineered systems & integrated APIs using protocols such as HTTP, TCP, SOAP
  4. Mentored & guided junior members of the team. Increased continuous quality assurance

Senior Consultant

Sparda Bank

Banken und Finanzdienstleistungen

500-1000 Mitarbeiter

Project: Sparda Bank, Finance - Banking
The client is a German fintech company that provides multi-banking solutions. They specialize in developing a secure platform that enables customers to manage their finances across multiple banking institutions through a single interface. This technology emphasizes the needs of modern banking customers.
  1. Designed and implemented microservices to serve more than 1 million customers, in an environment with 80+ Spring microservices.
  2. Integrated different TPPs (Hubspot). The added features enhanced customer experiences increasing the customer pool by 15% within 6 months. Google Play reviews improved by 30%.
  3. Handled transitioning the code base and intellectual properties between 5 partner companies.
  4. Created, maintained and promoted a quality handbook for code & operations. Contributed to the creation of a quality-based system that would allow a smoother inter-departmental experience

Senior Consultant

Ferendin Software Development GmbH

Industrie und Maschinenbau

10-50 Mitarbeiter

Project: Real-Estate, Greenfield
The client is a US SaaS startup that wants to revolutionize the real estate landscape with their cutting-edge digital platform. Simplifying searching & listings they are evolving dynamically winning investments and developing newer features for their customers.
  1. Implemented solo a successful Java-based MVP that attracted investments of over $300k and transformed into a full-scale product. Designed the database and mapped the object relations
  2. Created a full dynamic SQL query engine capable of generating over 500k different potential queries for a specific search of property.
  3. Normalized the databases & prevented SQL injection attacks using appropriate techniques.
Project: IoT, Greenfield
The client is a German industrial machinery company at the forefront of revolutionizing industrial operations. With a robust network of interconnected machines and a diverse fleet they leverage secure mobile access to critical information in real time and streamline operations for enhanced efficiency.
  1. Integrated Keycloak as authentication and authorization mechanism, protecting the mainframe.
  2. Designed & implemented APIs that would facilitate CRUD operations on different systems across a wide range of products for both their customers, operators and fleet management
  3. Integrated with DeepL for translation purposes allowing the client to move to the international scene. Created a service to manage images through AWS SDK and search functionality with SolR

Senior Consultant | Java Developer

Freelance

500-1000 Mitarbeiter

Project: Recruitment
The client is a German recruitment agency dedicated to connecting businesses with top-tier talent. The business was scaling and it needed new features to be added to help automatize some of the tasks and optimize existing workflows.
  1. Implemented an invoice management system with full CRUD functionality and printing to PDF of invoices. This implementation resulted in cutting operational costs of the client, allowing rebudgeting on newer features / development directions.
  2. Developed RESTful endpoints for managing candidates and information.
Project: Online Platform
The client is a US online digital book-selling platform which serves as a haven for book enthusiasts. With a wide online catalog, the platform facilitates seamless access to a wide array of literary resources.
  1. Developed and maintained the back-end infrastructure of the platform. Updated libraries, bug-fixing and adopted unit testing across some services. Added new features to manage inventories.
  2. Improved the existing documentation, enhancing it with technologies such as Swagger and upgrading the overall codebase with proper technical documentation.

Consultant | Process Simulation Expert

Freelance

Industrie und Maschinenbau

250-500 Mitarbeiter

Project: Revolution 4.0 / Digital Twin
The client, a major production company in Poland, had a huge number of orders and needed to expand their business. They prepared a production and expansion plan that was faulty and required re-engineering.

  1. Reduced by 70% the forecasted production times for a high-end production facility, simulating their system, conceptualizing and designing their processes via digital twin through Lean & 6 Sigma.
  2. Conceptualized and designed the manufacturing facilities layouts based on requirements. System simulation, time estimations and calculations were performed to optimize the processes.
  3. Determined a more suitable space allocation for capabilities, making space for other production purposes. Reduced travel times for workers and increased the overall ergonomics.

Aerospace Engineer (Flugzeugtechnik)

Airbus
My work history started in the aerospace field around 2015. I have been involved in a wide range of projects, being involved from conceptual design and analysis to manufacturing and end-product. I am proud to have designed, calculated & signed airworthy components that are flying as you are reading this on Airbus 3XX and Boeing 7XX series. Companies & clients: INCAS, Airbus Helicopters, Universal Alloy Corporation.

Zertifikate

OCPJSE11 - 1Z0-819

Oracle

2023

Agile Mindset

P+Z Technik

2021

Business Process Simulation Modeler

Flexsim Intermarium

2019

Process Flow Consultant

Flexsim Intermarium

2019

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