16.09.2026 aktualisiert

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100 % verfügbar

Senior IT / Software / Network Developer & Engineer

Geilenkirchen, Deutschland
Weltweit
Diplom-Informatiker (FH), Mathematisch-Technischer Assistent
Geilenkirchen, Deutschland
Weltweit
Diplom-Informatiker (FH), Mathematisch-Technischer Assistent

Profilanlagen

CV-Armin-von-Helden-de.pdf

Über mich

Als erfahrener IT, Software, Netzwerk Experte zeichne ich mich durch umfangreiches Know-How aus, das ich in 35 Jahren in internationalen Projekten erworben habe. Dabei sind Kunden, innovative Lösungen und Qualität meine wichtigsten Leitlinien, von der Analyse über Entwicklung & Test bis zum Support.

Skills

InnovationSecure Shell (SSH)C (Programmiersprache)HTML3GPPUmtsLTE (Telekommunikation)Agile MethodologieKünstliche IntelligenzAssemblerspracheAtlassian JiraAutomatisierungBASIC (Programming Language)TelekommunikationVoIPC++Cloud ComputingComputerprogrammierungDynamic Host Configuration ProtocolLinuxDNSPerlEthernetFortranFrame RelayGeneral Packet Radio ServiceH.323VPLSIgmpIsdnIpsecIptvIpv4Ipv6VPNMultiprotocol Label SwitchingJSONSession Initiation ProtocolPythonNetwork SecurityLibreofficeMultimediaRoutingNmapOpen Shortest Path FirstOpen SourceProfinetSystementwicklungs-LebenszyklusSnmpSOAPSoftwareentwicklungSyslogTransmission Control Protocol (TCP)WiresharkVirtual Router Redundancy ProtocolsVirtualBoxDrahtlose NetzeX.25 (ITU-T Recommendations)Extensible Markup LanguageLayer 2 Tunneling ProtocolScriptingTestenFile Transfer Protocol (FTP)5G NRUnterstützung von KundenFirewallsJuniperKubernetesSIGTRANCisco
Programming: Assembler, Basic, Fortran, PLM, C/C++, Perl, Python
Testing: Agilent, Ixia, Keysight, Spirent, Tektronix, Radcom, Catapult, Codenomicon, SIP clients, SIPp, Wireshark, dnsperf, nmap, iPerf, TRex, RRDtool, Gnuplot
Protocols: SDH, TDM, ATM, Frame Relay, Profinet, Ethernet, IPv4, IPv6, MPLS, LDP, RSVP, VPLS, UDP, TCP, RTP, SIP, SDP, H.323, H.248, ISDN, DNS, Sigtran, SS7, ISUP, Radius, Diameter, BFD, VRRP, ISIS, OSPF, BGP, PPP, DHCP, L2TP, NTP, PTP, IGMP, PIM, HTTP/2, PFCP, GTP, NGAP, JSON, XML, HTML, SVG, SOAP, SNMP, Syslog, SCP, FTP, SSH, IPSec, ConfD, SDLC, HDLC, X.25
General: Telecom, Internet, Fixed & Mobile Networks, GPRS, UMTS, LTE, 5G, Standards, 3GPP, IETF, ETSI, ITU, Switching, Extreme Networks, Routing, Cisco, Juniper, Redback, Firewalls, F5, Blade Cluster, Sun, HP, Dell, VPN, QoS, VoIP, IMS, BRAS, IPTV, Multimedia, Test Tools, Scripting, Automation, Software Development, Parallelization, Linux, Open Source, Network Management, Network Monitoring, Network Security, Virtual Networks, VirtualBox, Cloud Computing, Kubernetes, Graphing, Global Customer Support, Innovation, Agile, Jira, MS Office, MS Visio, LibreOffice, MediaWiki, AI applications

Erfahrung

Berufserfahrungmehr als 10 Jahre
Freelancer seit2025

Sprachen

DeutschMutterspracheEnglischverhandlungssicher

Projekthistorie

Development and Expert of Network Latency Area in 5G Cloud

Ericsson

Internet und Informationstechnologie

>10.000 Mitarbeiter

  • 5G Cloud Core network system test with Cloud Native Computing, Virtual Network Functions (VNF) and containerized Kubernetes environment.
  • Study on latency tools for packet based networks.
  • Creation of virtual software development & test environments.
  • Development of the leading network latency & jitter measurement software Multi Evaluation Capture (MECAP) in Perl. Standardized, platform and traffic independent. Combination with Open Source & AI.
  • Development of packet parser, protocol decoder, latency engines for: Profinet, BFD, IP, GTP, PFCP, NGAP, MIME, JSON, HTTP/2.
  • Implementation of CLI, Excel, Gnuplot and Json API’s for product latency monitoring.
  • Integration of MECAP with load test tools & automation.
  • Company-wide MECAP presentations, introduction & support.
  • Internet of Things (IoT) studies & tests with reliability measurements.

Global Customer Support in Packet Core Networks

Ericsson

Telekommunikation

>10.000 Mitarbeiter

  • Emergency and problem case investigation & handling with international team conferences, remedy proposals & actions, technical answer, handover.
  • Remote access to customer network devices for health check, problem analysis, problem resolution.

Development and Automation of Network Testing in IP Routing

Ericsson

Internet und Informationstechnologie

>10.000 Mitarbeiter

  1. Test automation for IP based network products.
  2. Development of tools for test configuration, control and monitoring.
  3. Network syslog evaluation.
  4. Vulnerability analysis and security testing with Codenomicon, nmap, Ixia.
  5. Test of inter-chassis and geo redundant networks for stateful (PPP, DHCP) subscribers and L2L3 VPN traffic.
  6. Development & utilization of the tool set ‘NodeGraph’ with rrdtool for unlimited network devices data graphing.
  7. Ideation & prototyping of Dynamic Network Graphic Integrator (DNGI) for automated network data visualization, e.g. topology, health.
  8. Network monitoring with HTML and LibreOffice Draw API.

Network Test and Customer Support in Broadband Remote Access System (BRAS)

Ericsson

Telekommunikation

>10.000 Mitarbeiter

  1. Feature and load test of BRAS networks in key customer program. (Deutsche Telekom, Vodafone, SFR, France Telecom, British Telecom, TalkTalk)
  2. Release test of Broadband Gateway Function (BGF) in multi vendor (Juniper, Cisco, Spirent, Ixia) and multi service (Switching, Routing, Multicast, IPTV, L2VPN, L3VPN, PPPoX, DHCP, L2TP, Radius, LDP, RSVP, MPLS, ISIS, BGP, IGMP, PIM) setups.
  3. Remote & on-site customer support for a broadband service provider to improve their BGF/IPTV multicast network (TalkTalk, UK) and strengthen against competition (Huawei).
  4. Acceptance test customer demo for a radio access network with Mini-Link, MPLS, L2VPN, L3VPN, PTP Sync. (Lazus, Colombia)
  5. Member of Quality Council to improve test concepts.
  6. Network drawing tools study incl. MS Visio, LibreOffice Draw, NetBrain.

Test Area Lead in IMS Customer Project Next Generation Network (NGN)

Telekom

Telekommunikation

>10.000 Mitarbeiter

  • Test area leader IMS Load & Quality of Service (QoS) in customer e2e testlab (Deutsche Telekom)
  • Planning & execution of acceptance tests IMS architecture 3GPP, ETSI, TISPAN. Generation of comprehensive test descriptions, drawings & result reports.
  • Testing of IMS functions, VoIP speech quality, network resilience & performance under load.
  • Load generation for SIP, RTP, H.248, DNS with with Spectra2, SIPp & dnsperf.
  • SIPp tool tweaking and test automation with Linux shell scripting.

System Test in IP Multimedia Subsystem (IMS)

Ericsson

Telekommunikation

>10.000 Mitarbeiter

  1. IMS end-to-end (e2e) tests in several network scenarios with various hw/sw SIP clients & servers.
  2. Testing of IMS Push-To-Talk (PTT), IMS Presence & IMS Charging in Plano, Texas, for customer (Softbank Mobile, Japan).
  3. IMS functions CSCF, MRF, SBC. Protocols SIP, RTP, H.248, Diameter.
  4. Load tests with open source C++ software SIPp.
  5. Creation and content structuring of IMS Wiki pages.
  6. Benchmark tests of Ericsson & Acme Packet Session Boarder Gateway (SBG) (Vodafone Egypt).
  7. Verification of User Data Consolidation (UDC) via MPBN VPLS connection Madrid-Aachen.
  8. Monitoring & investigation of packet loss & delay impairments with Sun Blade 6000, F5 BigIP load balancer, Agilent N2X, Ixia IxLoad.

Zertifikate

C1 Advanced English Level

International English Test

2025

Docker Intro + Kubernetes & Helm Admin

Component Soft

2022

IP Networking

Ericsson Academy

2012

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