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Roman Pietrzak

Software Engineer @ Ericsson

Software Development Expert at Cisco

Staines, Surrey, United Kingdom

Ranked #1,293 out of 25,860 for Software Engineer in United States

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Roman Pietrzak's Email Addresses & Phone Numbers

Roman Pietrzak's Work Experience


Software Engineer

April 2014 to Present

Southampton, United Kingdom

KemU Studio


January 1996 to Present

Liberty Global

Software Consultant

May 2014 to May 2014

Amsterdam Area, Netherlands

Roman Pietrzak's Education

Uniwersytet Zielonogórski

MSc Software Engineering

2001 to 2007

Roman Pietrzak's Professional Skills Radar Chart

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What's on Roman Pietrzak's mind?

Based on our findings, Roman Pietrzak is ...

52% Left Brained
48% Right Brained

Roman Pietrzak's Estimated Salary Range

About Roman Pietrzak's Current Company


Advanced Modular Receiver (professional STB) development

Frequently Asked Questions about Roman Pietrzak

What company does Roman Pietrzak work for?

Roman Pietrzak works for Ericsson

What is Roman Pietrzak's role at Ericsson?

Roman Pietrzak is Software Engineer

What is Roman Pietrzak's personal email address?

Roman Pietrzak's personal email address is ro****[email protected]

What is Roman Pietrzak's business email address?

Roman Pietrzak's business email address is y*****

What is Roman Pietrzak's Phone Number?

Roman Pietrzak's phone +44 ** **** *333

What industry does Roman Pietrzak work in?

Roman Pietrzak works in the Computer Software industry.

About Roman Pietrzak

📖 Summary

16+ years in software development. Experienced in: • all stages: design (architecture), implementation (coding), delivery (tests, deployment) and maintenance (bug-fixing, optimisation) • roles: architect/developer, tester (+automation), team lead (2-20 ppl), site startup lead, manager Person: • strong passion to IT – lot more than 8h/5d, • good team player and team leader/team builder • strong understanding of software development process, • strong bug fixing & code analysis abilities, problem hunter, • entrepreneur: Kemu Studio – see below Technicals: • 10+ years in digital TV (SetTopBox) and embeded • 16+ years in C, C++, Java • 15+ years in web development (server and client): node.js, PHP, JavaScript, CoffeeScript, HTML 5, CSS, Canvas, webGL, MongoDB, ajax, WebSockets, ActionScript, • more: python, embeded linux, Qt, Swing, DirectX, WinAPI, GDI, MHP, • git, svn, cvs, jira, bugzilla, scrum, agile, Specifics: • UIX-GUI: implementation, cool looking apps, tight cooperation with designers, • GFX: framebuffer, openGL, GLSL, blitter, freetype2, multi-core rendering, frameworks architecture, • optimisation: multitasking, queuing, memory/resource managing, parallel processing, cross-platform messaging & synchronization, cross-layer stacks optimisation,Software Engineer @ Advanced Modular Receiver (professional STB) development From April 2014 to Present (1 year 9 months) Southampton, United KingdomCo-Founder @ Starting from 1996 I've been working for more than 100 projects (different sized, commercial and non-commercial). Most of them have been released with the branding of 3 RedAnts Studio ( or KemU Studio ( I am cooperating with few coders and artists to meet customers expectations. • worked for (10/10 score points in all contracts), (one of the largest law and economy web-portals in Poland), (a local web-dev studio), (USA software reseller, non-existent currently), and many minor customers, • I'm the author of (also - easy-to-use JavaScript online calculators (PHP, JavaScript, XHTML), Developed and released: • database applications - data managing, data mining, high-experience data visualisation. This includes graphical tools for 2D/3D presentation of huge numerical databases (e.g. Warsaw Stock Exchange) with auto-adaptive evolution based analysis, (Java, C, C++ involved), • system and network tools - starting from very simple C/C++ command-line tools, up to tricky WinAPI usage to achieve extraordinary goals, multi-processing computation platforms, using a range of math algorithms (e.g. genetic analysis, simplified back propagation etc.) for achieving financial or graphics-related goals with server/client dynamic job allocation system, • websites - content managing systems (k4web), JavaScript applications, Flash-driven tools, even games, • presentation tools - using latest technology, which best fits customer needs. Starting from simple XHTML/JavaScript web-sites, up to DirectX/OpenGL applications for rich content and interactive visualisations, From January 1996 to Present (20 years) Software Consultant @ Short-term consultancy for Digital TV project. DTV, STB, Broadcom, Magnum, Nexus, Nagra, C/C++ From May 2014 to May 2014 (1 month) Amsterdam Area, NetherlandsSoftware Engineer @ Set Top Box application development – modern animated GUI, QT+GL driven: • QT, C++, C, svn, git, MPEG SI/PSI, DVB-S, linux, python, embeded, squish • openGL rendering: shaders, optimisation • fluent UIX: advanced user input devices, quick (50fps) user feedback, MVC oriented development • TDD, unit tests, scrum, jira From August 2013 to March 2014 (8 months) London, United KingdomExternal Software Engineer (contractor) @ • STB embeded software development: C, C++, QT, SVN, GStreamer, Conditional Access, Nagra, DBus, network PVR, gdb, TDD, multi-threading, dmalloc, DVB-C, DVB-T, • portal integration: VOD, QT webkit plugins (javascript API), HTML5, CSS, JavaScript, PHP, • remote test-farm automation on customer's site: python, bash, ssh, scripting • problem solving, debugging, issue identification, • multi-site teams cooperation: Saltaire (UK), Warsaw (Poland), Helsinki (Finland) and France, From January 2013 to August 2013 (8 months) Software Engineer @ • webkit browser integration into STB stack: C/C++, QT, git, gerrit, svn, auto-build systems, http/https, linux, optimization, tests, makefile, • web-portals for STB (e.g. VOD services, video/audio libraries, YouTube TV/Leanback etc.): HTML 5, JavaScript, external APIs integration, From August 2012 to December 2012 (5 months) Webservice API developer (contractor) @ Team located in Poland dedicated for Canada based company. Project features: • high volume web application (8M+ users), • distributed services, multi-server environment architecture: Node.js servers as core API, Ruby On Rails servers as application server, MongoDB as databases, cache by Redis, external applications by pub-sub style API with elements of OAuth authorization, • parts of common client (browser) and server code based on JavaScript (nodeJS, V8) compiled from CoffeeScript, • heavy user & team, rights & roles, access-lists based environment, with messaging, advanced payments management, My main tasks: • webservice API definition, backend implementation (nodeJS), databases structure (MongoDB), • distributed system architecture design (API servers load balancing, databases sharding, external apps API, worker queues), • core implementation in CoffeeScript for node.js server, • auto-tests suite (1k+ tests) design and implementation (mocha, should.js) • frontend integration, • small team leading (3 people), • high level of confidentiality before release, From March 2012 to July 2012 (5 months) Lead Software Engineer @ • teams leading in project-oriented environment, scrum, • software architecture design/redesign, implementation, performance tuning, • system/unit tests design and implementation, • knowledge exchange, coaching – team leading related tasks, • mobile charging systems implementation (Mediation Zone, APL), • application and middleware development for STB (HDTV, QT, GUI, SH4, MIPS) • a lot of network related code (RADIUS, SNMP, WiFi, curl, QtNetwork, etc.) • lot of C, Java, C++, From June 2011 to March 2012 (10 months) Wrocław Area, PolandExternal Software Engineer (contractor) @ Wifi and mobile 2G/3G Internet connectivity middleware: • C, C++, Qt, Qt Service Framework, linux, connman, git, • system tests design and implementation, • Wifi and 2G/3G test farm: architecture and implementation, • C++/curl implementation of controllers for access points from different vendors (DLink, Linksys, Cisco, etc.) • team leading for system-test group, multi-site coordination, multi-language team, scrum driven, From November 2011 to February 2012 (4 months) External Software Engineer (contractor) @ Scalable, high performance distributed data processing in MediationZone – mostly related to intergration of multi-vendor 2G/3G billing systems: • Java and APL development, unit & system tests, • distributed execution: software auto-versioning, distributed configs, fault-control, etc. • performance oriented development, • team leading for 2 teams (development and test), From August 2011 to October 2011 (3 months) Wrocław Area, PolandSoftware Engineer @ Main tasks: • Set-top box embedded code C, C++, Java, SH4 (RISC), Broadcom (MIPS) assembler development, • PC-based tools in C++, Java, PHP for optimization and automation of development and testing process, • Software architecture design, implementation, system tests, Development for STB on different layers: • GUI applications, user experience, • middleware (OpenTV, MHP) and porting layers, • high-level subsystems: graphical stack (from blitter to HD GUI animation), DVB SI database, peripheral stacks, • drivers (native os, linux kernel) • multi-level (global) optimisation of software stacks and subsystems, • toolsets for PC, Cross-platform development, including linux, windows, web-servers and mobile integration into SetTopBox services. From August 2005 to May 2011 (5 years 10 months) Zielona Góra Area, PolandComputer Network Administrator @ Maintenance & administration of 80-100 workstation-sized network: • software services maintenance - including administration of Windows Advanced Server Domain, Linux servers, routers, Internet connection etc. • hardware maintenance - administration, repairing, purchasing etc. • development and maintenance of databases, software tools and website - C, C++, PHP, javascript (jQuery), • a lot of couching - "introducing IT to non-IT people", From October 2000 to November 2005 (5 years 2 months) MSc, Software Engineering @ Uniwersytet Zielonogórski From 2001 to 2007 Roman Pietrzak is skilled in: C++, Java, API, JavaScript, CSS, PHP, AJAX, Swing, MIPS, XHTML, Sockets, Parallel Processing, Queuing, Multiprocessing, MHP

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In a nutshell

Roman Pietrzak's Personality Type

Introversion (I), Sensing (S), Thinking (T), Perceiving (P)

Average Tenure

3 year(s), 0 month(s)

Roman Pietrzak's Willingness to Change Jobs



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