Andreas Fink, Senior Software, Network and Datacenter Engineer auf www.freelancermap.ch

UNIVERSAL SS7 (SS7 OPEN SOURCE PROTOCOL STACK)

New implementation of a SS7 protocol stack as open source

in Objective-C 2.0 under Linux and macOS

http://universalss7.ch

http://github.com/andreasfink

Fink Telecom Services

Fink Telecom Services GmbH

Internet und Informationstechnologie

< 10 Mitarbeiter

Built up and run Fink Telecom Services GmbH, a services

company building APIs for telecommunications infrastructure,

operating a backbone across Europe and Africa. Planned

international fiber backbones, developed network statcks for

SS7 and Diameter. Cyber Security solutions for the mobile

network industry, Equipment Identity Registration systems to

stop bypassing VAT tax avoidance. GPS/UHF Tracker hardware

development. Designed independent energy systems to operate

points of presence in rural Africa. Operated Proxmox

clusters. VXLAN deployments. BGP communitities, VPN, IPSEC

and many more. Given many training sessions in Software

development, network design and deployment and network

software stacks. Evaluated AI technologies for projects.

SYSTEM ENGINEERING & NETWORK ENGINEERING

Postauto AG

Transport und Logistik

Network and System Engineering for the project ISA

(Integrated System Architecture) of Postauto AG

(time limited Project)

Tasks • Design and implementation of all network elements

• Software development und design support in the are

of CAN BUS, DNS-SD, IBIS-IP

• 4G, public WLAN,

• SPS (programmable logic controller) setup and

• Hardware testing and evaluation.

• Embedded Systems for testing of displays (IBIS Bus),

Simulation system for ticketdevalidator systems,

drop & insert system for banknote validator,

Technologies Red Hat Enterprise Linux

Docker, Linux Container

4G Wireless

CAN Bus

IBIS-IP

Agile Software Development Methods (Jira/Confluence)

Embedded Systems, Microcontroller

IBIS Wagenbus (vdv300)

Messbus (DIN66348)

BUILDUP AND OPERATION OF A ENCRYPTED BACKBONE (BACKBONE.IS)

Telekommunikation

10-50 Mitarbeiter

Construction and operation of an encrypted backbone for

internet providers & datacenters (www.backbone.is)

including complete link encryption, MPLS services, peering

at several internet exchange Points.

• Network planning and design

• IPSec setup and testing

• IP address assignment and documentaion in database

• configure and setup GRE tunnels

• installation and configuration of monitoring tools

(SNMP & Netflow) and monitoring with Intermapper and

Observium.

• Construction of points of presence in Frankfurt,

London, Basel, Zürich, Reykjavik, Keflavik (2x) with

connections to internet exchanges (DECIX, MSKIX,

LINX, RIX) and various uplinks in London, Frankfurt,

Canada, Zürich, Basel

• Setup of all routers and servers for the operation.

• Configuration of the internal and external routing

(BGP4, OSPF, OSPFv3, Static) including failover

tests.

• Use of SSH keys and SSL certificates for all

routers.

• Installation and operation of DVDM and CWDM

Technologies IPv4; IPv6; IPSec; GRE/GRE6 Tunnels, EoIP, VLAN; QoS;

MPLS; VPN; SNMP; BGP4; OSPF, OSPFv3; Interoperability;

Dark Fiber; Lamda Service; Peering;

BUILDUP AND OPERATION OF A DATACENTER (DATACELL EHF)

Buildup and operation of two datacenters in Iceland for

hosting services and bitcoin mining. Especially focusied

for power hungry applications with high power density and

customers with high requirements in terms of data

protection (Journalists, Wikileaks etc).

Takss • Planning of the Reykjavik Datacenter for hosting

(www.datacell.is)

• Sourcing and purchasing of all racks, battery backup

systems, fire extinguishing systems, surveillance

systems, cable distribution, fiber patches, ethernet

switches and servers for the operation.

• Planning and implementation of virtual machines and

Linux containers using Parallels Server for Mac and

Proxmox and VMWare.

• Evaluation, testing and installation of tree storage

systems (iSCSI, NFS, FibreChannel).

• Planning of a second datacenter in Keflavik

specifically designed for bitcoin mining

(www.moria.is) and its connection over CWDM to the

backbone (has been build by partner and is in

operation)

• Configuration of firewalls

• IPv4 and IPv6 address assignment via DHCP and

static and maintenance of matching DNS records

• Configuration of network address translation on

customer demand.

Technologies Storage Systems; NFS; FibreChannel; LAN; VLAN; QoS;

Virtualisation; Application Container; IP Address

Management; Cooling systems; Battery Backup Systems;

Redundancy

DEVELOPMENT AND OPERATION OF SMS INFRASTRUCTURE

SMSRelay AG

Telekommunikation

2001-2016 SMSRelay AG. Service and infrastructure provider around

SMS. Development of SS7 protocol stack and GSM

infrastructure elements (GSM, HLR, MSC, STP, etc) which

transports millions of SMS daily.

Tasks • Software development of a complete SS7 protocol

stack and implementation of a Short Message Service

Centers (SMSC) and the SMS relevant parts of HLR,

VLR/MSC.

• Special developments for mobile networks and SMS

aggregators

• SS7 trainings

• Planning and operation of a small cell network for a

research station in Antarctica.

Technologies GSM; SS7 (ANSI & ITU); GSM-MAP; TCAP; SCCP; SIGTRAN; M2PA;

M3UA, MPT3; CNAM; SMPP; EMI/UCP; SMS; WAP; WAP-PUSH; GPRS;

MySQL; PostgreSQL; Redis; Multithreading; ObjectiveC;

OPEN SOURCE PROJECT KANNEL (SMS & WAP GATEWAY)

• Work on open source project Kannel (www.kannel.org)

• Reimplementation of AT connection

• Implementation of delivery reports.

• Bugfixing

Technologies C; Unix; MySQL; GSM; AT Commands; Serial; Asynchronous;

REFRESH OF WIRELESS INTERNET PROVIDER (EMAX) IN ISLAND

Purchase of a bankrupt wireless internet provider and

modernizing it by replacing old outated hardware with modern components

and building new connections. Preparation for IPTV. Over 400 radio tower

locations in Iceland, mostly serving rural areas.

Tasks • Replacement of outdated pre-Wimax hardware with new

evaluated Wifi/Wimax/LTE Hardware.

• Planning and implementation of backbone on embedded

routers

• Calculation of radio coverage using radio

propagation simulation tools

• Extension with IP-TV support (QoS, bandwidth

planning)

• Configuration of MPLS and SNMP monitoring.

• Installation of PPPoE Server and DHCP server for old

BreezeMax Infrastructure

• Installation of a new Wimax/LTE base station(AirSpan

4G) in Selfoss.

• Sale of operation to new 4G operator (365 ehf)

Technologies Wifi; Wimax; 4G; SNMP, MPLS; QoS; IP-TV; VPN; Microwave;

Fiber; IP-Address Management, DHCP; IPv4; IPv6; NTP;

GLOBAL.AQ MESSAGING (IPHONE APP)

iPhone Messaging App "Global.AQ" (similar to WhatsApp/

Threema).

Tasks Development of concept, backend servers, infrastructure,

software development and iPhone app front end.

Technologies IOS; Objective C; iPhone; Client-Server; MySQL

VIRTUAL MOBILE NETWORK OPERATOR (MVNO)

BEBBICELL AG

Telekommunikation

Participation on a license tender of swiss Ofcom and

activation of backup plan using Mobitex and MVNO.

Implementation of number ranges and messaging services.

Selling off to service provider.

• Development of businessplan ant network plan for

mobile network.

• Choosing technology and development of backup

project.

• Sale of operation

Technologies GSM; Mobitex; Wifi;

MOBILE NETWORK OPERATOR (MNO) ICECELL EHF, ICELAND

IceCell ehf

Telekommunikation

Aquriring a mobile operator license in Iceland. Buildup of

a GSM network with 40 locations around Reykjavik including

network planning, roaming contracts with 100's of networks

around the globe.

Tasks • Complete business operation, planning and project

management

• Roaming contracts with international partners

• Project cancelled 2009 due to financial crisis

hitting Iceland heavily and main investor

dissapearing.

Technologies GSM; GPRS; Microwave; Ethernet; IPv4; IPv6; SS7

Senior Software, Network and Datacenter Engineer

Profilanlagen

Skills

Erfahrung

Sprachen

Projekthistorie

UNIVERSAL SS7 (SS7 OPEN SOURCE PROTOCOL STACK)

Fink Telecom Services

SYSTEM ENGINEERING & NETWORK ENGINEERING

BUILDUP AND OPERATION OF A ENCRYPTED BACKBONE (BACKBONE.IS)

BUILDUP AND OPERATION OF A DATACENTER (DATACELL EHF)

DEVELOPMENT AND OPERATION OF SMS INFRASTRUCTURE

OPEN SOURCE PROJECT KANNEL (SMS & WAP GATEWAY)

REFRESH OF WIRELESS INTERNET PROVIDER (EMAX) IN ISLAND

GLOBAL.AQ MESSAGING (IPHONE APP)

VIRTUAL MOBILE NETWORK OPERATOR (MVNO)

MOBILE NETWORK OPERATOR (MNO) ICECELL EHF, ICELAND

Zertifikate

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