Sergio A.
Drop Here

Sergio A.

Agile Project Manager and Lead Developer


Barcelona, Spain


Important: although I'm new to Upwork, I have been working on other freelance sites since 2005. I have one of the most outstanding profiles in another very popular freelance site, with more than 300 projects successfully completed, I can show it by request. ---- My name is Sergio and I specialize in providing quality custom software solutions while offering competitive costs and timing. My other freelance sites track record (can show on request), along with positive feedback from clients I’ve served, are proof that my qualifications and strong commitment to excellence make me an ideal choice for your next project. I have been ... moreworking at freelance sites since 2005 and currently I lead a team of programmers and designers from Spain and other places in the world. For managing projects I use agile software development methodologies (Scrum, XP…), which I consider the most efficient way to manage a project via the internet. I also consider myself a knowledgeable and efficient programmer, so I can evaluate team members’ performance and help guide them. In the last 6 years I have learned a lot about how to make a project successful when working with people who lives thousands of miles away and I consider a great opportunity to develop professionally and offer new and more complete services. Kind regards, Sergio. ----- Areas Of Expertise: - Agile software development. Design and project management. I can both lead an existing team or build a new one (with local or remote coders) if needed. - Java/J2EE/J2ME. Highly skilled in distributed computing and web services. JSP, Servlets. GUI design. JDBC. SAX, DOM, JDOM. SOAP (Axis). Netbeans, Eclipse and JBuilder IDEs. Bytecode analysis. Entreprise Java Beans (EJB). - Data extraction and analysis. Crawlers, custom search and metasearch engines. Advanced signal procesing, data analysis and statistical decision support programming. - Networking: design, testing, programming, analysis, and simulation. Advanced Routing (RIP, OSPF, BGP). SNMP management. - Databases: Oracle, MySQL, PostgreSQL, MS SQL, Access. Design, programming and administration. - (Technical) Translation: English <-> Spanish (Spain). Professional, accurate and human-made translation. - Linux (Debian, Red Hat, Fedora, CentOS, Ubuntu, SUSE...) administration. Bash scripting. Xen and VMware server virtualization. - Web-related technologies: HTML, XHTML, CSS, XML, DTD, Schema, XPath, XSLT, XQuery, JavaScript, AJAX. Experience in W3C standards Validation. - Low level programming with x86 and ARM7 (Philips LPC2000 family and similar) assembly and c. Keil development tools. Embedded systems design. - Other programming languages: C, C#, Matlab. ----- Resume: Objectives - Establish myself as an entrepreneur in the software and communications industry by focusing on top-notch quality and service. Highlights of qualifications - Deep knowledge of the internet structure and associated protocols. Several complex projects (dynamic web servers, instant messaging platform...) as work at various local enterprises. Education - Master of Engineering in Telecommunications with specialization in Telematics (Computing applied to Internet and Networks) and intensification in Project Management, Software Engineering and Agile Programming Methodologies (2007). - Network Programming Diploma (J2EE, 300 hours, INEM 2001). - Multimedia Diploma (Audio and Video edition, 200 hours, INEM 2001). Languages - Spanish: native. - English: advanced. Cambridge First Certificate. Skills - Programming: Java/J2EE/J2ME (specialized in distributed computing), C (network programming under Linux/Solaris), bash, assembly, oTcl. - Networking: Network design, analysis, simulation (ns2) and implementation. Protocols: TCP/IP model, OSI model, ATM, FR, GSM, UMTS, HTTP, FTP, POP3, RIP, BGP, OSPF IPv6, SNMP... - Operating systems: Linux (Debian, advanced, administration and programming), Solaris, MS Windows. - Edition: OpenOffice, MS Office, html... Work experience - July 2005 - now. Freelance coder. More than 500 projects successfully completed. - June 2004 - July 2007. Technical helpdesk at local TV station (half time). - March 2000 - June 2004. Network maintenance at several local enterprises as freelance. Others - Currently I have a 20 Mbps 24/7 ADSL2+ connection to the internet. ------ Some search keywords: netvibes, crawler, crawl, crawling, mining, scrape, scraping, automated data entry, lucene, nutch, solr, sphider, custom search engine, metasearch, ebay, jabber, paypal, wikipedia, mediawiki, jquery, prototype, prototypejs, cakephp, CRUD, SBML, ANSI ASC X12, jpcap, jnetpcap, datatables, forex, twilio. less

Sergio A. has added 1 portfolio piece. Create an account to review it.

Work History and Feedback

  • Oct 2014 - Nov 2014

    Developer to make One page Twilio SMS Form
    Very helpful and communicative. Did a great Job!
    2 hours
    $30.00 / hr
    $60.00 earned

  • Oct 2014

    Add pngquant to my server for use with PHP
    Did a great job!
    $30.00 earned
    Fixed Price

  • Oct 2014

    Configurate my Mail server with SPF and DKIM
    2 hours
    $30.00 / hr
    $55.00 earned

  • Apr 2013

    SQL Advice
    Great worker, knows what he is doing.
    $11.01 earned
    Fixed Price

  • Feb 2012 - Aug 2012

    Ebay test sale

    No feedback given

    $5.22 earned
    Fixed Price

Sergio A. has more jobs to show. Create an account to review them.


Name Score (out of 5) Time to Complete
Spanish Vocabulary Skills Test 5.00 1st Place! 12 mins
English To Spanish Translation Skills Test 5.00 1st Place! 12 mins
Data Sufficiency Test 3.00 Top 20% 19 mins
HTML 5 Test 4.40 Top 10% 27 mins
HTML Test 4.40 Top 10% 53 mins
Spanish Word Usage Test 4.50 Above Average 14 mins
Javascript Test 4.55 Top 10% 15 mins
Data Interpretation Test 3.15 Above Average 27 mins
Computer Aptitude Test 3.55 Above Average 26 mins
Windows XP Test 4.40 Top 10% 16 mins
JavaScript 1.8 Test 3.40 Above Average 33 mins
MySQL 5.0 Test 3.40 Top 30% 32 mins
SQL Test 2.75 Top 30% 26 mins
Management Skills Test 3.00 Top 30% 21 mins
Java Test 2.75 Above Average 23 mins
PHP5 Test 3.90 Top 30% 16 mins
U.S. English Basic Skills Test 3.75 Above Average 19 mins
What's the difference?

Work History

89% Job Success
44 hours worked
12 jobs


As Needed - Open to Offers
24 hrs response time

Associated with

Search for others