freelancer » Informations- und Kommunikationstechnologie » Datenbanken
freiberufler Solution Architect / Developer auf freelance.de

Solution Architect / Developer

zuletzt online vor 2 Tagen
  • auf Anfrage
  • 01-305 Warsaw
  • Europa
  • pl  |  en  |  de
  • 18.07.2026
  • Contract ready
Jetzt registrieren & Kontakt aufnehmen

Kurzvorstellung

OIC, Cloud, Integration, Oracle AI, GPT, LLM, cohere, Oracle APEX, low-code, Python, Django, J2EE, J2SE, J2ME, Oracle Application Development Framework (11g, 12c), Oracle BC4J, Oracle DB, MySQL, PostgreSQL, Redis, MongoDB, PL/SQL, REST, SOA, Weblogic

Geschäftsdaten

 Freiberuflich
 Steuernummer bekannt
 Berufshaftpflichtversicherung aktiv

Qualifikationen

  • Application Development8 J.
  • Architekturinformatik3 J.
  • Continuous Integration
  • DevOps (allg.)
  • Enterprise Architect (EA)9 J.
  • GPT
  • Integrationsberater im Bereich Berufsberatung1 J.
  • Internet of Things (IoT)3 J.
  • J2EE9 J.
  • Java-Entwickler1 J.
  • Java (allg.)7 J.
  • JavaScript16 J.
  • JavaScript-Entwickler1 J.
  • Oracle Fusion Middleware9 J.
  • SQL
  • UML

Projekt‐ & Berufserfahrung

Technical Architect
BNP Paribas, Warsaw / remote
9/2025 – offen (11 Monate)
Banken
Tätigkeitszeitraum

9/2025 – offen

Tätigkeitsbeschreibung

Client: internal, Sector: banking and finance

Duties:
- Designing solution architecture for new business initiatives and strategic technology projects.
- Creating architecture and infrastructure diagrams, technical documentation, and architecture decision records.
- Preparing technical analyses and migration strategies for on-premises to cloud transformations.
- Defining technology standards, architecture principles, and deployment best practices across projects.
- Supporting project teams in technology selection and solution design.
- Collaborating with the Group Architecture team in HQ to align local solutions with enterprise architecture and global standards.
- Designing and integrating central banking solutions, including Identity Provider (IdP) platforms and hybrid API Gateway architectures.
- Designing hybrid environments spanning on-premises infrastructure in Poland and France together with Microsoft Azure.
- Contributing to the expansion of the bank's private cloud platform.
- Cooperating with external technology vendors during solution evaluation and implementation.
- Participating in the architecture and planning of a new enterprise data center.

Tools/Technologies/Methodologies: Enterprise Architect, Enterprise Architecture, Technical Architecture, ArchiMate, C4, TOGAF, KeyCloak, Apigee, BPM, BPMN, UML, OpenShift, Microsoft Azure, DevOps, JIRA, Confluence, CMDB

Eingesetzte Qualifikationen

Architekturinformatik, Enterprise Architect (EA), UML

Oracle Fusion Expert
DahliaMatic, Warsaw / remote
8/2025 – offen (1 Jahr)
IT & Entwicklung
Tätigkeitszeitraum

8/2025 – offen

Tätigkeitsbeschreibung

Project: ESOD, Sector: transport
Duties: Design and development web application
Tools/Technologies/Methodologies: Oracle Fusion Middleware tech stack (ADF, SOA Suite, BPM, OSB, WebLogic), Java
Enterprise Edition (J2EE), GitLab CI/CD, Oracle GenAI, Oracle Integration Cloud (OIC), Visual Builder Cloud Solutions (VBCS)

Eingesetzte Qualifikationen

Integrationsberater im Bereich Berufsberatung, Java-Entwickler, JavaScript-Entwickler

Solution Engineer
Axiros, Munchen
5/2017 – 7/2025 (8 Jahre, 3 Monate)
Telekommunikation
Tätigkeitszeitraum

5/2017 – 7/2025

Tätigkeitsbeschreibung

Projects: Custom In-House Frontend Framework (MVC and EDA based architecture); Telecom Client GUIs (ie. Belkin dashboard with multi-step drill-down navigation); flaghsip product GUI development (Axess); Customer Support Portal v. 2.0

Duties: Developed and co-designed a frontend framework from the ground up; Created scalable UI components following MVC and EDA principles; Ensured high performance and modularity through advanced class hierarchy; Delivered frontend solutions for telecom clients with strict UX and device constraints; Acted as Scrum Master and Product Owner for the customer support portal—gathered requirements, coordinated across teams, and defined delivery milestones; Worked with distributed, cross-functional teams (backend, UX/UI) across multiple time zones.

Tools & Technologies
- Frontend: EcmaScript6, Handlebars, SCSS, jQuery, Babel, Navigo, Highcharts and others
- Backend: Python, Redis, Mongo, MySQL, Kafka, Clickhouse, ElasticSearch
- Other: Unix/Linux, Docker, Kubernetess, Bamboo, Confluence, JIRA, Keycloak, nginx
- Architecture & Design: MVC pattern, Event-Driven Architecture (EDA), streaming, Rx, modular class hierarchies
- UI/UX: Responsive design, pixel-perfect implementation, GIS map integration

Project Roles: Architect, Developer, Product Owner, Scrum Master

Collaboration: Distributed teams, cross-functional coordination, Scrum, SAF, agile planning

Eingesetzte Qualifikationen

Application Development, Enterprise Architect (EA), JavaScript, Product Owner, Python, Scrum-Master, Software Architecture, Typescript

Principal Consultant
Oracle, Warsaw
5/2014 – 4/2017 (3 Jahre)
IT & Entwicklung
Tätigkeitszeitraum

5/2014 – 4/2017

Tätigkeitsbeschreibung

* Worked in countries: Poland, Italy, Greece, UK, Germany, Denmark, Norway, Bosnia, Romania
* Projects:
- H3G (telco, Milan, Oracle WebCenter Portal)
- IDIKA e-Perscriptions (public, Athens, Oracle ADF)
- WorldPay (e-payments, Cambridge, Oracle Continuous Query Language and audit)
- New Look (fast-fashion, Stoke-on-Trent, Java audit)
- Bundesamt für Migration und Flüchtlinge (public, Nuremberg, Oracle SOA, Oracle ADF, Java)
- Maersk (logistics, Copenhagen, Oracle SOA migration), DNV GL (oil & gas, Oslo, Oracle JET, JavaScript, Oracle Integration Cloud)
- BCR (banking, Bucharest, Oracle ADF, Java)
- ISOK Qumak (public, Warsaw, Oracle ADF, Java)
* Technology Stack: Fusion Middleware tech stack (ADF, SOA, OSB, WebLogic, Coherence), Oracle Cloud PaaS and SaaS solutions (JET, JCS, JCSSX, Process Cloud Service, HCM Cloud, SOA Cloud), Oracle Big Data
* Internal assignments: Internet of Things, beacons, RFID, Ontology Web Language (OWL), RDF, Protege, GIS, Oracle Spatial

Eingesetzte Qualifikationen

Architekturinformatik, Datenbankentwicklung, Forschung & Entwicklung, Internet of Things (IoT), J2EE, Java (allg.), Java SE, JavaScript, Json, Oracle Fusion Middleware, Serviceorientierte Architektur

IT Specialist
Česká pojišťovna S.A. Oddział w Polsce, Warsaw
10/2011 – 4/2014 (2 Jahre, 7 Monate)
Versicherungen
Tätigkeitszeitraum

10/2011 – 4/2014

Tätigkeitsbeschreibung

Project: INSIS, Client: Groupama, Sector: insurance
Duties: Design, development and implementation of the internal system (INSIS) that supports car insurance sales process. Implementation in Oracle ADF 11g technology with Oracle Business Components as model layer. Developed products are deployed as plug-ins into INSIS application. J2EE code is supported with PL/SQL triggers, functions, procedures, etc.. Integration with several external systems (ie. SAP BCM). Oracle ADF 11g tech leader (four persons team).
Tools/Technologies/Methodologies: JEE, Application Development Framework 11g (ADF11g), Oracle Database, BI Publisher, JDeveloper, Subversion, Maven, jRuby, SAP BCM, Alfresco, PL/SQL, WebLogic, Scrum, UML

Eingesetzte Qualifikationen

Oracle Fusion Middleware, J2EE, Serviceorientierte Architektur, SOAP, JavaScript, Weblogic (Oracle)

Project Manager/Architect/Consultant
Mobile Solutions, Warsaw
1/2009 – 10/2011 (2 Jahre, 10 Monate)
IT & Entwicklung
Tätigkeitszeitraum

1/2009 – 10/2011

Tätigkeitsbeschreibung

Project: System Rejestracji Zamówień, Client: Rekan Sp. j., Sector: private
Duties: Design and development web application
Tools/Technologies/Methodologies: PHP, AJAX, JavaScript, MySQL

Project: Konferencja TESTWAREZ, Client: SJSI, Sector: IT
Duties: Design and development web application
Tools/Technologies/Methodologies: PHP, AJAX, JavaScript, MySQL

Project: Polrez, Client: CyberMarketing, Agencja Marketingowa WJX, Sector: tourism
Duties: Design and development B2B and B2C web application
Tools/Technologies/Methodologies: PHP, AJAX, JavaScript, SEO, MySQL, e-payments

Eingesetzte Qualifikationen

Mysql, Ajax, HTML, JavaScript, PHP, Suchmaschinenoptimierung

Oracle Fusion Middleware Consultant
Oracle, Warsaw
7/2007 – 9/2011 (4 Jahre, 3 Monate)
IT & Entwicklung
Tätigkeitszeitraum

7/2007 – 9/2011

Tätigkeitsbeschreibung

Project: CreditWorkflow, Client: DnB NORD, Sector: banking and finance
Duties: Developing web application to support mortgage credit process (ADF11g, PL/SQL, XSLT).
Tools/Technologies/Methodologies: JEE, Application Development Framework 11g (ADF11g), BPM Suite, Universal Content Management (UCM), SOA Suite, Bussines Rules, Oracle Database, BI Publisher, JDeveloper, Subversion, PL/SQL, WebLogic, Scrum

Project: IPS, Client: PTC Sp. z o. o., Sector: telecommunication
Duties: design and developing system using Java Standard Edition.
Tools/Technologies/Methodologies: JSE, Swing, Hibernate, Oracle Forms, NetBeans, Eclipse, Subversion

Project: KSI SIS, KSI VIS, Client: Komenda Stołeczna Policji, Sector: public sector
Duties: develope XSLT transformate, verify application
Tools/Technologies/Methodologies: Oracle ADF10g, XSLT

Eingesetzte Qualifikationen

Oracle Database, Oracle Fusion Middleware, J2EE, Java SE, Java (allg.), Swing (Java), Weblogic (Oracle)

Weitere Projekt‐ & Berufserfahrung anzeigen

Zertifikate

Oracle APEX Cloud Developer Certified Professional
Oracle
2025
Oracle Cloud Infrastructure 2024 Generative AI Professional
Oracle
2025
Oracle AI Vector Search Certified Professional
Oracle
2025
Oracle Fusion AI Agent Studio Foundations Associate
Oracle
2025
Oracle Cloud Infrastructure 2025 Application Integration Professional
Oracle
2025
Professional Scrum Master I
scrum.org
2017
Professional Scrum Master II
scrum.org
2017
Oracle Certified Professional, Java SE 7 Programmer
Oracle
2015
Oracle Certified Associate, Java SE 7 Programmer
Oracle
2015
Oracle Application Development Framework 12c Certified Implementation Specialist
Oracle
2014
Oracle Application Development Framework 11g Certified Implementation Specialist
Oracle
2014

Ausbildung

ArchiMate® 2
Ausbildung
2016
Professional Scrum Master
Ausbildung
2016
Cape SOA 12c
Ausbildung
Oracle
2015
Oracle ADF Advanced 11g
Ausbildung
2013
Oracle Architect Enterprise Applications with Java EE Ed 1
Ausbildung
2013
Oracle WebLogic Server 11g: Administration Essentials
Ausbildung
2013
Cybernetic Faculty, computer sciences
Master of Science
Military University of Technology
2009
Warsaw

Über mich

Experienced IT consultant with strong programming, software architecture, and project management skills. Possesses in-depth knowledge of the Java and Python technology stacks. Proficient in working with relational databases (Oracle, MySQL, PostgreSQL), NoSQL databases (Redis, MongoDB), and graph databases (Neo4j). Experienced in both remote and on-site collaboration with clients across various EU countries.

Persönliche Daten

Sprache
  • Polnisch (Muttersprache)
  • Englisch (Fließend)
  • Deutsch (Grundkenntnisse)
Reisebereitschaft
Europa
Arbeitserlaubnis
  • Europäische Union
  • Schweiz
  • Vereinigte Staaten von Amerika
Home-Office
bevorzugt
Profilaufrufe
625
Alter
41
Berufserfahrung
18 Jahre und 1 Monat (seit 06/2008)
Projektleitung
6 Jahre

Kontaktdaten

Nur registrierte PREMIUM-Mitglieder von freelance.de können Kontaktdaten einsehen.

Jetzt Mitglied werden