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Work Background
ZalandoSenior Principal Software Engineer, Information Security
Sep. 2024Berlin, Germany
SiemensSenior Software Architect, R&D
Mar. 2024 - Sep. 2024Berlin, GermanyEcosystems and Marketplaces
sennderPrincipal Software Engineer / Head of Architecture
Jan. 2023 - Mar. 2024Berlin, Germany
Solaris SEStaff Software Engineer, Lending Team
Jan. 2020 - Sep. 2021Berlin, GermanyTechnical responsible for the entire fleet of microservices in the lending unit. Moved projects from MVP to production readiness for new high-profile customers (AMEX and Samsung). Moved the infrastructure from on prem to AWS. Designed GDPR solution. ๐๐๐๐ฃ๐๐ฉ๐ช๐ง๐ ๐พ๐ค๐ฃ๐ฉ๐ง๐๐๐ช๐ฉ๐๐ค๐ฃ๐จ: Migrated all the Lending Business Unitโs fleet of micro services from on-prem to AWS, utilizing infrastructure as code with terraform & prepared them for 2 scaled up integrations and launches.
Accounted for the management and maintenance of the entire fleet of microservices in the lending unit. Assumed responsibility for developing the technical vision and direction for the team. Provided expert architectural solutions and effectively communicated them to various stakeholders.
Moved the products from MVP to production readiness for two big customers. Identified risks, bottlenecks, performance issues and checked the system resilience to failures in the existing platform which drove a couple of initiatives to improve and strengthen the existing services for being able to cope with load for AMEX and Samsung.
Designed and implemented the GDPR solution for the Lending Business Unit.
Collaborated closely with stakeholders and Product Owner to define roadmap and OKRs, consistently advocating for the inclusion of technical topics.
Technically led 3 teams consisting of 20 members. Tech Stack: Ruby, Elixir, AWS Services, Terraform
8x8Lead Software Engineer, Messaging Team
Sep. 2018 - Jan. 2020Cluj County, RomaniaWhile being an experienced .NET engineer and tech lead, I had little exposure to Elixir and Erlang OTP--the two key elements of the team tech stack. I found this as a very good opportunity to broaden my expertise. With focus, I became quickly productive and able to deliver a few key features, while taking responsibility for much broader areas of the product that required gathering requirements and long-term planning. ๐๐๐๐ฃ๐๐ฉ๐ช๐ง๐ ๐พ๐ค๐ฃ๐ฉ๐ง๐๐๐ช๐ฉ๐๐ค๐ฃ๐จ: Built a directory search index inside the Erlang cluster for a performant employees directory access.
Developed and implemented retention policy management support, including the deployment support scripts.
Developed support for AWS multi region deployment
Designed and implemented key components on the 8x8 cloud communication platform using the Elixir programming language.
Took ownership of the development process, including the design, implementation, and maintenance of high-level components and their APIs on the 8x8 platform necessary for GDPR
Collaborated closely with "consumer" teams within 8x8 to ensure successful project integration and specification evolution.
Monitored performance, facilitated continuous delivery, deployment, instrumentation, and analytics. Tech Stack: Elixir, Erlang, PostgreSQL, ElasticSearch, Memcached, Terraform, Javascript, AWS, REST API, Distributed Systems
iQuest GroupSoftware Architect, Life Sciences
Jan. 2015 - Sep. 2018Cluj, RomaniaI was part of a strategic consolidation program, consisting of several overlapping streams and more than 10 applications. I was responsible for developing IT architectures of strategic software solutions and technology consulting for one of the top five Life Sciences companies in the world. The architectural decisions highlighted non-functional requirements such as availability, flexibility, stability, ease of maintenance and security, always balanced by the financial and efficiency aspects.
In addition, I led the redesign of the authentication mechanism for a web application integrated into Salesforce, implementing Single Sign On using the Open ID Connect protocol. ๐๐๐๐ฃ๐๐ฉ๐ช๐ง๐ ๐พ๐ค๐ฃ๐ฉ๐ง๐๐๐ช๐ฉ๐๐ค๐ฃ๐จ: Successfully designed and delivered a centralized Search Center Center utilizing Solr, replacing the need for individual search engines within 10 complex applications managing medical instruments related documentation for a big pharma company for reducing cost of development and maintenance.
Collaborated with cross-functional teams to identify and resolve network issues, ensuring seamless operations and minimal downtime, ensuring scalability, reliability, and security of the IT infrastructure
Ensured seamless implementation of architectural solutions by aligning technical aspects among 5 internal teams and external stakeholders to ensure the successful execution of the project, meeting all objectives and deadlines
Provided strategic architectural solutions considering dependencies, constraints, pain points, and risks.
Conducted technical recommendations, comparison analysis, assessment activities, and prepared comprehensive technical documentation
Played a key role in estimations, planning, and development, providing valuable technical recommendations for current and future releases
Focus on performance and security
Coaching and mentoring Tech Stack: MS SQL, ASP .NET MVC, WPF, Typescript, Reporting Services, Solr, WCF, Salesforce, OpenID Connect, Ansible
iQuest GroupLead Software Engineer, Home Automation
Jan. 2013 - Dec. 2015Cluj, RomaniaIn this role, I led technical aspects of the Backend APIs, Responsive MVC Mobile Application and Reporting Services components within the system. I worked on both requirements clarification and technical concepts ensuring end-to-end solution ownership. I successfully integrated into the existing system new devices, such as smart power control, smart web camera, Miele washing machine. ๐๐๐๐ฃ๐๐ฉ๐ช๐ง๐ ๐พ๐ค๐ฃ๐ฉ๐ง๐๐๐ช๐ฉ๐๐ค๐ฃ๐จ: I assumed the role of technical lead for the Mobile and Backend Platform, ensuring seamless operational efficiency
Spearheaded the development and integration of new smart devices into the system, including Philips Hue Lamps, Smart Camera, Smart Power Control for Solar Panels management and Grid Control
Collaborated closely with cross-functional teams to successfully implement the integration of Miele Washing Machine into the System
Implemented strategic measures to enhance system performance and optimize data access logs.
Introduced first draft of IOT communication channels via REDIS for the backend systems
Contributed to the redesign of the .NET MVP mobile application to be responsive on multiple mobile devices.
Coaching and Mentoring Tech Stack: MS SQL, ASP .NET MVC, Silverlight, WPF, Typescript, Reporting Services, Responsive Design
iQuest GroupSenior Software Engineer, Life Sciences
Jan. 2011 - Dec. 2013Cluj, Romania๐๐๐๐ฃ๐๐ฉ๐ช๐ง๐ ๐พ๐ค๐ฃ๐ฉ๐ง๐๐๐ช๐ฉ๐๐ค๐ฃ๐จ: I developed WEB and WPF Applications for calibration configurations, monitoring and reporting of pharmaceutical reagents and calibrators used by medical measuring instruments.
Green ComputersSoftware Developer
Mar. 2008 - Dec. 2008Cluj, RomaniaInvolved in the development of functionalities for an Enterprise Resource Planning (ERP) system.
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