DV

Dejan Vukas

available

Last update: 24.04.2023

Festnetz planer, Richtfunk planer

Graduation: Elektrotehnik
Hourly-/Daily rates: show
Languages: German (Limited professional) | English (Full Professional) | Russian (Limited professional) | Serbian (Native or Bilingual)

Attachments

CV-DejanVukas_240423.pdf

Skills

Mikrowave, fiber, fibre, Festnetz, FttX, FttS, PDH, SDH, GSM, UMTS, LTE, IP, DWDM, MPLS

Project history

04/2021 - 10/2022
Transmission Planner
3 (Hi3G Denmark ApS), Denmark (Telecommunications, 250-500 employees)

3 Denmark is one of the four mobile network operators in Denmark.
I am working in Transmission department dealing with planning, operation, and maintenance of the transmission network.
Network is geographically divided in four parts. I am responsible for the transmission network planning in the South – Western part of the country.
We are working on several projects running in parallel:
  • new sites rollout project (to provide coverage and capacity needed to end national roaming agreement),
  • FttS (Fiber to the Site) rollout project,
  • Swap project (swapping Huawei with Ericsson BBUs) and complete transmission network capacity upgrade, and
  • 5G rollout project.

05/2020 - 04/2021
Network Engineer
Avnet, Serbia (Internet and Information Technology, >10.000 employees)

Avnet is global distributor of electronic components with offices in 125 countries and more than 15 000 employees.
I am part of a team designing, operating and maintaining network infrastructure in EMEA region.
My tasks are:
  • Analyse and act on service request and incident tickets raised by users and resolve them within SLA
  • Undertake analysis work to identify root cause of a problem in collaboration with other team members and stakeholders
  • Participate in collecting business requirements, analyse and propose end to end solutions
  • Coach and advise end users
My part-time task is to create network automation software in Python for accessing and collecting information from the nodes in the network.

09/2019 - 03/2020
ICT Network Engineer
Airport Nikola Tesla Belgrade, Serbia (Transport and Logistics, 10-50 employees)

Airport “Nikola Tesla” Belgrade is the biggest international airport in Serbia and the major hub for the South-Eastern Europe. Back in December 2018, the concession agreement was signed with Vinci Airports, France, for the time period of 25 years.
The Government of Serbia established a company Airport “Nikola Tesla” Belgrade Ltd. in order to follow up if all the requirements from the concession agreement are met and fulfilled by the operator of the airport.
I was the only ICT network engineer in the Airport “Nikola Tesla” Belgrade Ltd. My task was to review and approve High-Level-Design (HLD) and Low-Level-Design (LLD) documents and make sure that design is according to the concession documents Minimum Technical Requirements and Master Plan.
I took part in the airport development design and construction program. The program is divided into 46 projects, according to the Vinci Airports Construction Program, with the estimated cost of 732 million €. Each of the 46 projects affects more or less the airports ICT network infrastructure.
The airports ICT infrastructure consists of the vast number of different telecommunications and IT systems:
  • GPON fiber-optic network (3 rings)
  • Radio network (Motorola Mototrbo),
  • WiFi network (Cisco Meraki),
  • Video surveillance network (IndigoVision),
    • Access control system (Siemens SiPass), etc.

04/2016 - 09/2016
Transport Design Engineer
Omnitele Finland (Telecommunications, 50-250 employees)

Omnitele provides consulting and expert services for telecom operators and regulators in network strategy, design and quality assurance.
The company was founded in 1988 to set up the world’s first GSM network. Since then, Omnitele has completed over 1000 projects in over 80 countries around the globe.
I took part in “Consolidated Network Design and Optimisation” project for the mobile operator Mobilink Pakistan (daughter company of VimpelCom).
Mobilink Pakistan has acquired Warid Telecom Pakistan back in November 2015. Combined, they had more than 50 million subscribers.
Our task was to merge these two networks into one and to increase the capacity of all transmission links throughout the country.
Initially, my task was to collect all transmission network related data from the customer, from multiple instances of network planning tools from different regional offices with unsynchronized databases, with partially overlapping (and inconsistent) information. In parallel, I was auditing the customer transmission network design, preparing reports with proposals for change. The process was done in multiple iterations and the final set of data was used to populate our network planning software tool.
Later on, I was responsible for transmission network planning in city of Karachi and surrounding area.

02/2008 - 08/2014
Transport Design Engineer
T-Mobile Netherlands (Telecommunications, 250-500 employees)

I have worked in Radio Network Design department, designing transmission network and planning the traffic routing in the North part of the Netherlands. Over the years, I have also designed the network in the central and the Western part of the Netherlands.
I took part in the following projects:
  1. FttS (Fiber to the Site) and DWDM rollout and migrating traffic from the existing microwave links to the newly built MPLS TP network over fiber loops,
  2. LTE / single RAN / All IP RAN rollout (i.e. swap),
  3. Network wide Iub interface capacity upgrade,
  4. Major network coverage and capacity upgrade to accommodate former Orange subscribers (T-Mobile acquired Orange Netherlands. Orange network was dismantled and T-Mobile network had to be heavily expanded (customer base increase more than 100%)).
Shortly after dismantling the Orange network, T-Mobile was fined by the telecom authorities in the Netherlands for not fulfilling the Orange licence requirements. I was delegated as the only transmission planning representative in the project team established to fulfil the Orange license requirements and prevent another fine and ultimately loosing the license. We have completed the task successfully.

08/2007 - 12/2007
Transmission Planner
3GIS Sweden (Telecommunications, 50-250 employees)

3G Infrastructure Services AB is a joint venture company of two mobile operators in Sweden (Telenor and Tre). According to the licence for the 3G networks they got from the government, they are allowed to share up to 70% of the network infrastructure (so called "multi-operator" feature in Nokia 3G network).
3GIS is the network infrastructure company which is building these 70% of the common Telenor's and Tre's 3G network in Sweden. Planning of the network is done within 3GIS and telecom implementation is outsourced to vendor (NSN).
At the moment, project of activating HSDPA on 2500 sites is going on and I am taking a part in it. My task is to plan transmission network and traffic routing for the:
  • Activating HSDPA on the existing 3G sites,
  • Integrating new 3G sites into the network, and
    • Upgrading of site configuration type (initiated by blocking ticket received from network monitoring department).

06/2004 - 07/2007
Transmission Planning Team Leader
Nokia Ukraine (Telecommunications, 250-500 employees)

Nokia is the biggest vendor and turn key solution company for the third national mobile operator (Life).
Initially, I was responsible for coordinating transmission planning activities in the South – Eastern part of Ukraine (cities Donetsk, Dnepropetrovsk, Zaporozhie, and tourist resorts along Crimean coast (Yalta, Sevastopol, etc)).
I was coordinating TRS network planning teams in three regional offices of Nokia and Nokia's NWP subcontractor (around 15 TRS planners and LoS engineers).
In August 2005 I became Head of TRS department in Nokia Ukraine. I was managing TRS planning activities in all 6 regional offices of Nokia and NWP subcontractor (~ 30 TRS planners and LoS engineers).
I took part in the defining FttH (Fiber to the Hub) network topology, node configuration, and site design.
I have created software tool (using MML and Service Terminal Commands) to gather data from live network and create network topology, configuration and performance reports (quality & availability reports). These reports were basis for the network audit, link acceptance, and corrective actions for enhancing the network quality.
I have created custom VBA software in MS Excel for creating MW Call-offs, Site Material Requests (BoQ Bill of Quantity), and Purchase Order. Based on knowledge of NetAct Oracle database table structure I have created SQL scripts to gather the data of interest.
I have created transmission planning guidelines, MoPs (Methods of Procedures), and trained local engineers.
I have been selected by project director, Mr. Helge Raitanen to receive a reward for an ”excellent contribution in Astelit GSM Project during the course of year 2005”

12/2003 - 06/2004
IP Network Planning Engineer
Informatika Serbia (Telecommunications, 50-250 employees)

Informatika is Cisco System's System Integrator & Premier Certified Partner. Besides that, Informatika is Gold Solutions Partner of Allied Telesyn, and Dell distributor and Service Provider.
I am working in Networking & Communications department. I took part in all steps of network planning:
  1. Data Collection & Validation, collect and review network requirements and all necessary background information. These requirements include specific service requirements, network environment, and performance requirements as well as any business or market objectives
  2. Modelling & Analysis using specialized or proprietary tools, and equipment engineering rules, model various network scenarios based on requirements (traffic demands, network architecture, design parameters, covering multiple technologies including wireless, optical, circuit switching, fixed access, and data). Interpretation of the modelling results to assess alternative options and aid in the development of the final Network Design. This includes the quantification of each alternative’s impact on cost, revenue, and new services time-to-market.
  3. Network Design & Engineering - develop end-to-end network design plans to meet the specific network objectives and constraints. Detailed network planning and engineering activities are performed based on the results of the modelling process. The design process also addresses redundancy and security issues to maximize the network’s ability to survive failures and disasters.
    1. Documentation Creation – creation of documentation that fully supports the network design.

04/2001 - 07/2001
Transmission network planner
Ericsson Tunisia (Telecommunications, 50-250 employees)

This is a turn – key project for Tunisia Telecom, the first and the only GSM operator in Tunisia. The aim of this project is to increase the capacity and to improve coverage area of existing (Alcatel) GSM network.
According to the share of responsibilities, Tunisia Telecom is providing back-bone transmission network and access network whenever they have spare capacity in their existing fixed network.
Usually, it is necessary to plan at least one MW hop from BTS to access point of Tunisia Telecom transmission network.
I am the only Transmission Network Planner in this project and consequently the only responsible for transmission network planning in the whole GSM network in Tunisia.
My duties are MW link planning (site survey, LoS Matrix preparation, LoS report analysis, path budget calculations, meeting quality and availability targets, frequency planning, interference calculations, A-bis network planning), and correspondence with Tunisia Telecom on all transmission network issues.
Also, I gave support to marketing department preparing nominal network plan and appropriate material for tenders.
I have customized reports made by network planning tool to meet the requirements of this project.

01/2001 - 04/2001
Transmission network planner
Nokia Brazil (Telecommunications, 50-250 employees)

Nokia project Brazil was pre licence project. The basic network planning (field planning) was outsourced to a third party (subcontractor) but closely supervised by Nokia. In addition to Team Leaders, Nokia nominated also some experienced Nokia Planners helping with advanced network planning issues.
Since in Belo Horizonte subcontractor had employed only Transmission Planners without any experience in GSM, besides transmission network planning, my duties were also LoS Engineers Training, TRS Network Planners Training, LoS Team Leader and TRS Network Planning Team Leader (for the first 2 months while that position was not filled with permanent Nokia employee).
I was working in Zone 1, which consisted of two BSCs. It encompassed downtown of the Belo Horizonte (the third largest city in Brazil) and it’s South - East suburbs.
My duties were planning of transmission network supporting GSM traffic between cell sites & BSC sites, designing nominal transmission plan (loop topology was implemented whenever it was possible), site survey, line-of-sight (LoS) analysis, Fresnel zone clearances, link sizing, link power budget and interference calculations. Traffic routing and multiplexing.

04/2000 - 07/2000
Transmission network planner
Nokia Hungary (Telecommunications, 50-250 employees)

The Vodafone project Hungary is a turnkey project to supply, in rapid rollout, initially a fixed number of MSC, BSC, and BTS network elements to Vodafone for an 1800/900 GSM network.
I was working on BSC26 and BSC27 areas on the sites from the phases 2B1 and 2B2.
Those BSC areas include highways toward Austria and Slovakia, main roads (10, 15, 81, 82, 83, 84 and 85) as well as town Tatabanya, Gyor, Sopron, Esztergom, Papa, Tata and Mosonmagyarovar.
My duties were planning & optimising of transmission network supporting GSM traffic between cell sites & BSC sites. Designing nominal transmission plan (loop topology is implemented whenever it is possible), site survey, line-of-sight (LoS) analysis, Fresnel zone clearances, link sizing, link power budget and interference calculations. Traffic routing, multiplexing and evolution of the network capacity. Evaluation of equipment and systems to be used, developing the network to meet planned and actual traffic figures at the various stages of the rollout. Updating relevant databases.

06/1998 - 04/2000
Transmission Planner
Mobtel (Yettel) Serbia (Telecommunications, 250-500 employees)

Responsible for planning & optimising of transmission network supporting GSM traffic between cell sites & area switching centres.
Design nominal transmission plan, site survey, line-of-sight (LoS) analysis, Fresnel zone clearances, link capacity, and link power budget and interference calculations. Planning traffic routing, multiplexing and evolution of the network capacity.
Evaluation of equipment and systems to be used, develop the network to meet planned and actual traffic figures at the various stages of the rollout.
Design and maintenance of relevant databases.

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