Senior DBA (MySQL, Hadoop, Vertica)

Millennial Media


Sr. DBA (MySQL, Hadoop, Vertica) Operations Apply now Posted : June 15, 2015 Full-Time Boston, MA, United States Position Summary Millennial Media (NYSE: MM) is the leading independent mobile ad marketplace, making mobile simple for the world’s top brands, app developers, and mobile web publishers. Our company's unique data and technology assets enable advertising clients to connect with their target audiences at scale. Millennial Media also drives monetization for publisher and developer partners by connecting them to networks, advertisers, and an RTB exchange. Our 24x7 platform systems process several billion global requests daily, and performance, scalability, and quality are critical to our success. Millennial Media has incredible growth and momentum and we are looking to add the right talent to our skilled team. As a Database Administrator you will be responsible for all activities related to the administration of company databases including mySQL (primary), Oracle, Vertica, and Hadoop. This individual should have strong time management skills and the ability to pick up new concepts in an evolving business. Duties & Responsibilities Plan, design, configure and maintain databases on Linux servers for both production and development environments Perform data modeling and schema design Optimize database performance and scalability Investigate and troubleshoot performance issues Advise engineers on performance tuning, query optimization, index tuning. Automate failover and recovery, backup scripting and disaster recovery planning. Monitor infrastructure to ensure stability and maximum available uptime Provide assistance to development teams to help integrate data persistence seamlessly. Database architecture and implementation Define database authorization rules, perform security audit, and perform platform assessment regarding proper support for the selected databases. Read and implement entity-relationship diagrams. Collaborate with application architects, product managers, business analysts and technical management team to design, develop and document databases, schemas, tables, functions, triggers, procedures, relationships and other necessary aspects of the database. Handle multiple projects simultaneously and engage in problem solving on these projects. Provide Administration, management and support of Hadoop distributions such as MapR, Cloudera, etc. Design and provide solutions to satisfy security and audit compliance requirements relating to SOX and other internal requirements Provide status reports to senior management Be available 24x7 as an escalation for the on call team  Required Skills  Experienced SQL developer  Expert knowledge of MySQL database tuning and optimizing complex MySQL statements for best possible performance Knowledge of Hadoop and/or Vertica database installation, maintenance, and optimization Strong knowledge of database concepts – database design, performance tuning, replication setup Strong knowledge and prior experience of working on Data Warehousing concepts Previous experience working in a Java environment Familiarity with Linux Experience with short software lifecycles   In depth experience with database installation, configuration and upgrade Good communication, documentation, and interpersonal skills  Must have excellent learning abilities and have the ability to use various resources to research issues.  Experience working in 24/7, mission critical database environments Education/ Experience Bachelor’s Degree required 3-5 years of experience administering at least one of the following:  Oracle, MySQL, Vertica, or PostgreSQL databases on a Linux platform 1+ years of MPP (Massively Parallel Processing systems such as Greenplum, Netezza, Teradata or Vertica) and/or HADOOP (such as MapR, Cloudera, Hortonworks) administration experience. Experience supporting mission critical relational databases with exceptional troubleshooting and analytical problem-solving skills. Broad knowledge of relational database technologies Prior experience working on or leading successful data warehousing implementations desired Benefits Millennial Media prides itself in building exceptional career opportunities and offering outstanding benefits to our team, such as HSA/PPO health plan options, a 401k plan with company matching, unrestricted vacation time, and many other awesome perks. We have the enthusiasm of a start-up, the stability of a public company, and a culture driven by employees excited to challenge the status quo. We offer great benefits for a very simple reason: attract the best people and allow them to focus on being great.  Management reserves the right to modify, add, or remove duties and to assign other duties as necessary.  In addition, reasonable accommodations may be made to enable individuals with disabilities to perform the essential functions of this position.  Millennial Media is an equal opportunity employer Qualifications Skills Behaviors : Motivations : Education Experience Licenses & Certifications

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