[github.com/mionita1980] . [mionita1980@proton.me] . [+40 728 29 28 79] . [PDF] . [Jul 6, 1980]
During my 20 plus years of experience as a software engineer, I have strived to improve my expertise in general-purpose programming (with emphasis on: telecom, civil engineering and more recently, AI) and integrate innovative solutions into my work.
Skills
pre-sales
delivery
system architecture & design
team-leading
programming
teaching
microlith
microservices
llm
ai
devops
databases
containers
linux systems administration
webservers
application servers
load/stress testing
Programming: Java, C, C++, Python, Erlang, Javascript, Spring, Micronaut, TestContainers, Boost, Langchain Databases: MySQL, Postgres, H2, sqlite, Cassandra, Oracle, SQL, CQL, GraphQL, OneNDS Linux: Alpine, RedHat, Debian, Wolfi Documentation: Markdown, ASCIIdoc, PlantUML, Mermaid Scripting: bash, AWK, Perl DevOps: Kubernetes, Docker, Terraform, Helm, Ansible, Crossplane, Openstack HOT, K3S, K3D, Skaffold, Vagrant Private Cloud: Openshift, Openstack, Proxmox, VMWare Public Cloud: Azure, AWS Monitoring: Prometheus, Loki, Grafana, ELK, Micrometer, Open telemetry Testing: K6, JMeter, Postman/Newman AI: Azure Cognitive Services, Hugging Face, Mistral Protocols: REST, SOAP, HTTP, TCP, IP, ICMP, Diameter, WebRTC, SIP, Sigtran, SS7, JMX, LDAP, SNMP, SMTP, Syslog Others: Redis, Nix, ActiveMQ, dagger.io, Github actions, Azure pipelines, Gitlab CI/CD, XML, SAP-CC
Experience
Solution Architect, mindit.io
Mar 2024 - present, Bucharest, Romania
Presales (solution design, estimates) followed by proof-of-concept application development, as well as delivery (high level design, implementation, automated testing and deployment) activities. Team-leading (code review, support for team members).
- Incorporate AI driven solutions, to enhance customer-facing procedures within a B2B agency, ensuring a more responsive initial client experience.
- Create a scalable education management system with AI safeguarding features, enabling early detection of issue concerning the education process.
- Create multi-tenant RAG based chat-bots for websites, enabling a human-like interaction for the customers’ usual queries.
Technologies used: multi-agent AI, Azure Cognitive Services, Azure Container Apps, Terraform, Java, Python, K6, Azure managed Redis, MySQL, bash
Solution Architect, RSystems
Dec 2020 - Mar 2024, Bucharest, Romania
Presales (solution design, estimates), delivery (from design to implementation and automated testing), support, team-lead and teaching activities.
- Created custom telecommunication messaging platform, designed to maintain synchronization across various systems, using multiple retry mechanisms, enabling data-driven decision making to personalize a customer’s experience. Developed using microservices and deployed on Kubernetes. Example: being a subscriber to service A, allows you to consume a limited amount of service B, where A and B have different providers.
- Tier 3 support activities for containerized production systems, spread across multiple clusters
Technologies used: Java, Flight Recorder, ELK, Kubernetes, Helm, Skaffold, JMeter, Postman, bash, Spring, Openshift, Alpine, RedHat, CI/CD pipelines
System Architect, RSystems
Apr 2012 - Dec 2020, Bucharest, Romania
- Improved B2B services platform, for a telecommunication operator, enabling automated charging and reconciliation.
- Created JAIN-SLEE based call-control solution, on private cloud infrastructure, for a telecommunication operator.
- Developed a comprehensive MVNO solution, ensuring fast time-to-market for a classic telecommunication operator’s prepaid plans. The solution facilitated efficient charging, communication, and customer service, enabling the marketing department to come up with ever-changing customer offers.
Technologies used: Java, JAIN-SLEE, Rhino TAS, Erlang, SAP-CC, Openstack, Vagrant, Linux
System Integrator, RSystems
Aug 2011 - Apr 2012, Irving, Texas, US
- Integrated a AAA solution in a tier 1 US telecommunication operator’s network.
Technologies used: OneNDS, OneAAA, LDAP, Diameter, Solaris
System Architect, Computaris
Dec 2008 - Aug 2011, Bucharest, Romania
- Created an integration platform between a telecommunication operator and third-party service providers based on a AAA (Authentication, Authorization, Accounting) platform, to create additional revenue streams.
- Created additional components for that platform, interfacing with LDAP and GreenPlum databases.
- Created a performance test suite, based on Apache JMeter.
Technologies used: Java, JMeter, OneNDS, OneAAA, LDAP, GreenPlum, Linux
Senior Software Engineer, Computaris
Mar 2007 - Dec 2008, Bucharest, Romania
- Customer base migration for a telecommunication operator, to a new provisioning platform, without service disruption.
- Provisioning platform development for multi-national operator.
Technologies used: Java, Teligent P90
Software Engineer, Computaris
Mar 2006 - Mar 2007, Bucharest, Romania
- Developed an XML based platform for delivery of new telecommunication services, with very small time-to-market, including charging, provisioning and call-control capabilities.
- Ericsson Diameter charging SDK adaptation, for use in the XML based platform.
Technologies used: C++, Java, Diameter, XML, Linux
Research Engineer, University of the Bundeswehr
Aug 2003 - Mar 2006, Munich, Germany
Delivery (implementation and testing) and support.
- Developed a structural assessment application, using OpenCascade and Sofistik, integrated with wireless communication technology to facilitate real-time measurement input.
- Support activities during application field testing; gathering user feedback and real input data.
Languages
- Romanian: Native
- English: Full professional proficiency
- German: Limited working proficiency
- French: Elementary proficiency
Education
Bachelor in Engineering, Politehnica Univerity of Bucharest
1998 - 2003, Bucharest, Romania
- Information Technology
- CCNA (Cisco Certified Network Administrator) studies
2003, Munich, Germany, University of the Bundeswehr
- Bachelors dissertation
- Erasmus student exchange program