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Last updated: October 1, 2015

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Althaf M.

Althaf M. Agency Contractor

Certified Web/Software Architect with 10 years experience

India - Tests: 15 - Portfolio: 7

Experience : Experience in architecting and developing softwares for broad range of industries, including Building Management, Energy Management, etc. Have took part in many full SDLC projects and architected few Hybrid products. Well versed with the new paradigm shifts in programming and sound knowledge and experience in system level programming , as well as application programming - especially cross platform complaint solutions. Good linux admin skills as well as automation of many process using scripts. Through knowledge and practical knowhow on scalable web applications as well as web databases. Designed many e-commerce related portals from scratch and made scalable and user friendly approach in the solutions. Have a good overlook on the various aspects of product development and product management and also took part in and contributed to many product marketing strategy building activities. Decade long experience with various technologies and platforms make me learn more and make myself better utilized in various solution architecting and managing activities. Certifications : Certified Software Architect - Carnegie Melon University Certified Green Belt - Six Sigma Engineer (Process) Certified Scrum Master - Scrum Alliance (Agile) Programming/Scripting Languages : C++, PHP, JAVA,JSP,PERL, JAVASCRIPT, HTML5 , CSS2&3, Frameworks/Tools Used : QT using C++, JPA2 - Hibernate, Spring web-mvc, Spring data, Spring security , Spring web flow, Code Igniter, CakePHP, jQuery ,Backbonejs , Underscorejs, Knockoutjs, WebRTC - peerjs, SASS, LESS , REST, SOAP , RTSP, ffmpeg videojs etc. Servers Used , Apache(for php and mysql), Apache Tomcat for java, Glassfish Planning tools used : JIRA , CONFLUENCE, TRELLO, ASANA, Basecamp, Balsamiq Databases - Relational => MySql - Oracle Databases - NoSql => {'Mongo'}, /CouchDb, Solr My Strengths : 1. Quick Learner 2.Perfection (Altruistic) 3. Business Perspective Presently doing partial user experience designing activities - user interviews, Mockups, Card Sorting, Information Architecture, Persona Creation. TRAININGS HTML5, CSS3 and Java Script Training from Microsoft Microsoft training in Win8 Mobile Application Development. Startup Engineering, Standford Unversity Hadoop & Big Data Analytics, Edureka Data Scientist, University of Washington Spring Training from VMWare Mostly online through skype and hangout.

Associated with: SecureBulls

$30.00 /hr
672 hours

Todosiciuc Mircea

Todosiciuc Mircea

Software Project Manager - Automotive Electronics

Romania - Tests: 8

Over the last 6 years I've worked in automotive field, as an embedded software developer for body control modules at one of the leading companies in the field, Continental Automotive. My work includes the complete development V-cycle of a software product, from writing the specification documents to performing and documenting validation tests of the product. My previous work place, for 1 year and half, was at the biggest telecommunication company from Romania, Romtelecom. I've worked at the call-center, where my duties were to assist and help the customers, as well as identify their problems and needs and propose mutual advantage solutions. So I can say that I have a good background in marketing and customer care. The future steps which I would like to take are in the field of Project Managing, which I find very attractive and challenging. My opinion is that my background and my studies entitle me to hope that this is the best solution for my personal development.

$16.67 /hr
47 hours

Devesh Rai

Devesh Rai

Embedded Systems and Product Design Consultant

India - Tests: 4 - Portfolio: 5

Experienced Embedded Systems Developer and Designer.Industry experience in a vast range of technologies including: * 8-bit microcontrollers such as AVRs, PICs, 8051s. * 16-bit AVR XMega, PIC24, dsPIC, and TI MSP. * 32-bit ARM7, ARM9, ARM11, ARM Cortex-A8, ARM Cortex M3s, MIPS32/74k * Embedded Linux development on ARM9 (S3C2410, S3C2440), ARM11 (S3C6xxx) and ARM Cortex A8 (TI OMAP, Sitara), MIPS32 Architectures (RTL8xxx, BCMxxxx, RTxxxx). * Windows CE: C++ and C#.NET for ARM9 and ARM11 (S3C2410, S3C2440 and 6410) * Desktop Application Development Using C#, special focus on scientific and instrumentation. * Image Processing and Vision Systems (including OpenCV) * GUI development for Graphical LCD's using 8, 16 and 32 bit microcontrollers * GUI development using QT. * Creating custom UI Frameworks for Linux on kernel mode. * Industrial control and automation. * FPGA based Designs (Xilinx Spartan 3 and Virtex II series) * DSP software using TI TMS320 based DSPs for Audio and Video Processing * iPhone/iPad Application Development (Xcode/Objective C) * Windows Phone 7.x Application development (Silverlight/WPF)

$100.00 /hr
362 hours

Mohit Agnihotri

Mohit Agnihotri

Expert C Protocol Developer

Sweden - Tests: 4 - Portfolio: 5

Few Professional Projects undertaken at various organisation as part of the organisation. LTE Femto EnodeB Solution: Responsibility included detailed development, testing for the given feature. In addition had opportunity to work in collaboration with end user team in Korea and completed the integration activity on MindSpeed Platform. eGTP-C PSF :This is a project which provides fault tolerant capability to trillium eGTP-C layer. Vested with the responsibility, I provided team with Technical Leadership and mentored all team members and made them aware with technical details of the requirement. In addition I was involved in design, prototyping and development of Code and final testing of the project on various platforms. SS7 & Fault Tolerant Support (TAPA SS7 Protocol Portfolio & DFTHA/FTHA) : Currently acting as Team Lead and heading a team of 4 members which are actively supporting entire SS7 protocol portfolio. My responsibility included guiding and analyzing feasibility for all upgraded related requirements. In addition, I am vested with individual responsibility to provide upgrade and maintenance related requirement for TAPA DFTHA/FTHA solution. Signaling Connection Control par( SCCP)t & SCCPX: Worked as Senior Software Engineer on SCCP & SCCPX protocol development for the Huawei MSX, CSX, ASAU as the end Product. My key responsibility includes the maintenance of the existing protocol stack, optimizing the performance with product integration and developing new features as desired by the product to enter new markets. Transaction capability Access(TCAP): While working on TCAP protocol development for the Huawei USAU end Product, my key Responsibility includes the optimization of the protocol and development of the new features as required by the product. Specialties:LTE Architecture, RRC, S1AP, X2AP, eNodeb Application Development SS7[TCAP/SCCP/SCCPX/MTP3] & Sigtran[SCTP/M3UA] protocol Development Ant, Assembly language,C,C++,Python Build Automation using CruiseControl & Other Open Source Tools

$44.44 /hr
58 hours

Nora Gaspar

Nora Gaspar


Hungary - Tests: 2 - Portfolio: 1

I'm a 25 years old programmer from Budapest, Hungary. I have just finished a Msc. in Biomedical Engineering, and also I have a Bsc. in Electrical Engineering. I'm taking a few months off before a Phd to travel and get some experience outside of academia. I'm looking for short term freelancer jobs. I have experience in quite a few different fields, such as embedded c, android, javascript, etc. Also I'm happy to learn new techniques too.

$15.00 /hr
4 hours

Puneet D.

Puneet D.

Electronics Engineer/ Technical Writer/ Web Research

India - Tests: 4 - Portfolio: 2

To obtain a challenging position that allows me to utilize my current skills to assist in advancing a business. I am also eager to learn new skills and business and technological advancements. Graduation in Electronics Engineering, presently working as Research and Development Engineer. Expertise in Micro controller based projects. -->PCB designing: Kicad EDA software suite. -->MicroControllers: Atmega8/16/32 Stm8s -->Wireless Sensory networks. -->Microcontroller based Application systems. -->Proteus Simulation -->LTspice design and simulation software -->Inkspace drawing software -->Product development -->Technical writing

100% Job Success
$5.56 /hr
167 hours

John lester S.

John lester S.

Senior Electronic Hardware Design Engineer

Philippines - Tests: 3 - Portfolio: 12

More than 10 years of experience in circuit design and product development. Have long time experience in doing electrical and electronic schematics. Experienced in switching converter design such as flayback, boost, buck, forward, ITTF, LLC and others. Have experience in designing low to high power switch mode power supply from proto to mass production. Experienced in LED driver design and LED applications. Capable of doing detailed analysis such as worst case, design failure mode and effects analysis, monte carlo and reliability prediction to come up with a robust and high quality design. Have long experience in implementing customer requirements and designing circuit from scratch that best fit the specifications. Capable of leading people. Summary of Capabilities: 1. AC-DC power supply design, switching and linear, multiple outputs or single, trimmable or fixed 2. DC-DC power supply design 3. Offline AC-DC adapter design 4. Charger design with constant current and constant voltage, AC-DC 5. Charger design with constant current and constant voltage , DC-DC for Li-Ion, Li-Poly, LiFeP04, Lead acid and so on 6. LED lighting related applications, LED drivers (CV/CV) 7. Solar panel energy harvesting and charging systems 8. Switching converters such as buck, boost, buck-boost, flyback, forward, LLC, half bridge etc 9. Amplifiers, filters, switch 10. MCU, DSP and digital circuits 11. Schematic and PCB using eagle 12. Simulations using LTSpice, Matlab, Simulink, Simetrix and Simplis 13. Design analysis and computations using Mathcad 14. Control system design, type 1,2,3 and PID using spice, SISO tool in Matlab or Simulink control design Projects: 1. 750 W AC-DC, efficiency 94% This is a three stage design consisting of power factor correction circuit (boost topology), buck pre-regualtor and main DC-DC (half bridge resonance). The supply has EMI filter on board and passed CE and FCC or ICES emission limits. This supply is compliant to line surge; can withstand 2.6kV and 1.3kV common mode and differential mode voltage spikes. It complies to ESD, EFT, ringwave, dips and interruptions and harmonics and of course conducted and radiated EMI. The design has an auxilliary circuit which is a flyback topology that provides power to the control and houskeeping circuits. The main controllers are digital signal controllers (DSC). Some features includes but not limited to: a) Current sharing, b) Startup short protection, c) Running Short Protection, d) Over voltage protection, e) Under voltage protection, f) Power limit, g) Higher power factor (close to unity), h) holdup of 20msec, i) over current protection, j) over temperature protection, k) output reporting, l) input reporting, m) higher accuracy 2. 500 W AC-DC, efficiency 92% Have the same features as above. This PSU is composed of two stage only; PFC and LLC resonant converter. 3. 360 W AC-DC, 90% efficiency, variable output This power supply has variable output voltage from 14.25V to 16.5V. Two stage design using PFC and LLC resonant converter. All the basic circuits in item number one are in place. All the international standards are also met. This power supply has a convection rating of 220W; meaning it can handle this power without a fan cooling. This is ideal for medical and other fanless applications. 4. 450 W AC-DC, 92% efficiency, multiple outputs This power supply has multiple outputs. It has 12V/21A, 5V/30A, 3.3V/10A and standby of 5V/4A. All the international standards are in place and has all the protections needed as item number 1 above. 5. 50W buck-boost design This is used for e-cigarrete. It can handle continuous 50W with variable output voltage of 1V to 10V. It is powered by a 3.7V rechargeable batttery. 6. AC-DC, 5W charger design with constant current and contant voltage 7. Charging circuit for solar panel applications 8. Lithium Ion Charger 32V input to 24V output with variable charge current 9. Energy saving standby circuit 10. Smart Junction boxes for automotive. This is the one controlling all the body electronics of an automobile. Such as headlights, foglights, wipers, mirrors, heated mirror, fans, etc.

82% Job Success
$30.00 /hr
77 hours