System Administrator since rh4.2. I've been in system solution development and integration for last 10 years. Offering help without refund if the problem is easily fixable. System Services Extensive knowledge of Linux operating system and linux based services and solutions: – High Availability, High Performance and Load balancing clustering solutions all based on networking L2/L3 or application levels. – Customer services: mail (SMTP/POP3/IMAP/Webmail), web (Apache, Nginx, lighthttp), DNS (bind, unbound, dnsmasq), FTP (proftp, wsftp), Radius (freeradius), LDAP (openldap), SQL (MySQL), .. etc. System administration of Linux and UNIX flavour based systems. Extensive knowledge of Storage Area Networking solutions based on FibreChannel and iSCSI infrastructure. Programming Programming languages and software management: – Significant competence in SQL, Perl and scripting languages – Ability to read, modify and debug source code written in C, C++ and PHP Networking Extensive knowledge of routing and switching: – Cisco routers series 800, 1700 1800 3700 etc. – Switching equipment: Catalyst 2900, 2950, 3550 – VPN: linux – based PPTP, L2TP, IPsec, OpenVPN solutions. – Linux: firewall (iptables), routing (ip/route) and bridging
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Timur K. Agency Contractor
Hi! Let me introduce a small objective =). I'm experienced software developer with deep knowledge of language patterns and best practices. My main goal in programming is to keep source code clean, maintainable and scalable, I fully agree with Robert Martin who describes clean code as elegant, efficient, readable like well-written prose and doing my best to achieve this.
IT Manager with solid experience in project and operational management. I have extensive knowledge of modern IT Service Management, Agile, Lean and Waterfall processes (ITIL, PMBoK, PRINCE2, Scrum, XP, Kanban, Kaizen, RUP). Deep understanding of software architecture and software development life cycle. Hands on Java coding skills and distributed systems. Experience of working onsite in multilingual environments and virtual teams, manage remote developers and vendors’ teams, successful conflict resolving. Strong leadership, communication, presentation and negotiation skills. Also my technical skills are: - core J2EE technologies (JSF, JSP/Servlets, EJB, JCA, JAAS, JTA, JMS, Oracle ESB, Oracle UDF, Oracle UIX etc.), - enterprise design patterns, - frameworks (struts, spring, hibernate, ibatis, dwr) and related technologies (XML, XSD, xPath etc.), - cloud computing, grids, distributed systems and in-memory caches (Oracle Coherence Cache, Hazelcast, Hadoop, HBase, ZooKeeper). Last 7 years I concentrated on core server side development for investment banks and managing of complex Front and Back office projects. I'm seeking opportunities to lead development, setup effective processes in teams, manage projects implementation or make whole development by myself. Work as Team/Technical Lead or Development/Project Manager for a large Java project. Also I'm very interested in distributed and big data solutions and R&D work.
Summary Software Engineer with a focus on distributed systems development, HA systems and highly scalable Internet-based architectures. More than 10 years of experience working for different industries such as: Telecommunications, E-Commerce, Banking, Retail, B2C, etc. Specialties: Distributed systems programming, Erlang/OTP, C/C++, Java, C#, UNIX/POSIX programming, VoIP, NGIN. Experience Technical Lead, Intertec International Heredia, Costa rica — 2014-Present CTO/Co-Founder, Niagara Systems, Inc. Medellin, Colombia — 2008-Present - Designed and developed WEST, tool written in Erlang/OTP for messaging-based systems development, with high concurrency and real-time requirements. [https://github.com/cabolanos/west] - Designed and developed WEST Java Client. [https://github.com/cabolanos/west-java-client] - Designed and developed IM solution, using Erlang/OTP, MongooseIM, FFMpeg, Nginx Media Server and FreeBSD. - Designed and developed MERC, a MarkLogic REST Client written in Erlang/OTP. - Designed and developed Cloud Communications Platform with a RESTful API. Technologies: Java, Mobicents (JAIN SLEE, MMS), Spring and JBoss AS. - Designed and developed a distributed logging solution with Riak database and Erlang/OTP. - Designed and implemented EMCALI Click-To-Call Service. Technologies: Java, JSLEE, Mobicents Media Server and JBoss AS. - Implemented Cloud Communication Platform for EMCALI. - Designed and implemented Electronic Recharge Service. Technologies: C/C++, Dialogic. - Designed and implemented Sponsored Calls Service. Technologies: Java, JSLEE, Mobicents Media Server and JBoss AS. - Designed Mobile Services architecture for Avianca BCBP System (Bar Coding Boarding Pass). - Designed Next Generation Services Platform for ETB. IT Specialist/Applications Architect, IBM Bogotá, Colombia — 2011-2013 Bancolombia - Innova Project. - Designed and developed SWIFT Server simulator. Technologies: Java, Spring, JMS and WebSphere MQ. - Designed architecture of Distributed Document Management System. - Designed and developed a distributed caching solution, using Java, Spring, EHCache and Memcached. - Designed architecture of TRADE solution, based on SOA and EDA. Senior Software Architect, Carvajal S.A. Cali, Colombia — 2008-2011 - Designed and developed EWS (EBusiness Web Services), a Web-based business network and invoicing platform. Technologies: Java, JMS, Spring Integration, REST and WebSockets. - Designed and developed Peru Electronic Billing Solution based on SUNAT government regulations. Technologies: Java, JMS, Spring Integration and SOAP. - Designed a Credit Card Solution for COOMEVA. - Designed and implemented a Distributed Caching System. - Designed a Mass Email Sending System. - Implemented a Capacity and Performance Model for B2B invoicing platform, using QN Models. - Designed and developed Traceability Solution based on RFID technology. Software Engineer, T-Uno Colombia Bogotá, Colombia — 2007-2008 - Designed a Real Time Video Conference System. - Designed and developed a voice-recording module for an audio conference platform. C/C++ and Aculab. - Designed and developed a digital E1 line monitoring system. C/C++ and Aculab. Software Developer, Innovatec Ltda. Cali, Colombia — 2006-2007 - Designed and developed Prepaid Calling Card Platform. C/C++ and Dialogic. - Developed a VoIP/TDM/PRI/GSM gateway. C/C++ and Dialogic. - Developed version 2 of PBX platform. C/C++ and Dialogic. - Designed and developed TEMAS, a Telemarketing application written in C/C++, using Dialogic boards. Education Master of Management, Information Technologies Cali, Colombia — 2010-Present Universidad ICESI. Specialist in Networks and Communications Cali, Colombia — 2007-2010 Universidad ICESI. Bachelor of Science in Electronics Engineering Cali, Colombia — 2000-2006 Pontificia Universidad Javeriana. Professional Qualifications - Software Architecture Design Professional Certificate, Carnegie Mellon University and Software Engineering Institute, 2011. - Advanced Distributed Systems Design using SOA & DDD, presented by Udi Dahan, 2010. - Business Process Management Course, IT Institute (ITERA), 2009. Skills & Expertise - Erlang/OTP - Distributed Systems - C/C++ - Enterprise Software Architecture - Java - Real-Time Systems (VoIP, NGIN, IMS) - Unix/Posix Programming - NoSQL (Riak, MongoDB, CouchBase, Redis, etc.)
Michael Weinberg Agency Contractor
Michael is a Toronto based technology innovator with over 15 years of experience developing, architecting and leading complex software R&D initiatives in Digital Media, IPTV, Gaming and Web verticals. Broad and deep software expertise with current focus on highly scalable distributed systems, Cloud and BigData technologies. Michael holds a Masters degree in Computer Science with a thesis in distributed artificial intelligence. Author of scientific publications and patent applications. Managing Partner and RadX Software Labs Inc., a Toronto based boutique software consultancy firm, experts in Cloud, BigData and emerging technologies. RadX Labs designs and develops high performance systems which scale to millions of users, billions of events, thousands of servers and petabytes of data. https://www.linkedin.com/profile/view?id=9098524
I am a software engineer ten years into my career with experience in my programming languages and varied tool sets. Most of my work has been web application development (front and back-end) and distributed systems for computing and managing data.
I am a programmer with high personal standards and attention to detail; passionate for problem solving, deep understanding and creative solutions. Thanks to ten years of experience developing networking services and distributed systems I have gained broad insight in reliably scaling massively concurrent high availability platforms.
Functional programming enthusiast, ACM member, dog owner, principal software engineer at am.ru. Passionate about information retrieval, machine learning, concurrent and parallel programming.