Senior Server Developer / Architect:

Please apply directly via email now.

You will play a key role in development of jaxtr's core application and key software components. You will utilize your recent experience designing and developing high performance and scalable server side Java solutions. You have demonstrated ability to deliver high quality server side code.

Qualifications:

• BSCS/MSCS or equivalent with at least 4 years of software development experience.
• Server-side Java development experience (multi-threading, high performance, scalability, networking, concurrency).
• Experience developing real time, high reliability, mission critical server applications.
• Java server development using Tomcat in Linux environment.
• Experience with data layer abstraction, SQL, JDBC, connection pooling, STRIPES, tag libraries.
• Good knowledge of garbage collection methods is a must.
• Excellent understanding of JSTL.

BONUS: iBatis, Junit, Jmax, Jmeter, SIP/VoIP, MySQL, experience with high volume web sites.

Database Administrator, DBA and MySQL:

Please apply directly via email now.

Exponential growth (doubling registered user base every month), Hybrid storage engine model, scalability to the extreme (with brains!, not just brawn) — come join a very smart team and make history! We will be writing white papers (and blogs) about this…

Responsibilities:

• Manage a growing number of MySQL servers.
• Maintain backups, replication, and monitoring system health.
• Continuously optimize schema, queries and indexing.
• Assist developers in schema/query design.

Qualifications:

• MySQL 5.0 (MyISAM and InnoDB engines).
• SQL, replication, LVM, rsync, Linux.
• 5+ years of experience, ideally at high-traffic consumer Internet site.
• Startup experience.

Bonus points for:

• MySQL MEMORY engine, hybrid engine model.
• Data modeling.
• Data mining and analytics experience.
• Knowledge of Linux, Tomcat, Java, VoIP/SIP, iBatis, stored procedures.
• Large volume emailing management.
• Server optimization.
• Knowing recovery, in addition to backups…
• Understanding when data shouldn't be stored in RDBMS.

Tools Engineer:

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This position looks for a toolsmith that has experience in building consoles, dashboards, and monitors that closely watch the key functions of the company. The tools built will allow the user to look at pre determined queries and insight producing visual data. Features such as drill down graphs, real time automated graphs, digital dashes and the like are part and parcel of the deliverables. These tools in general quickly pinpoint bottlenecks, issues, and other significant events in addition to providing assistance in analyzing and answering business trend questions.

Responsibilities:

• Creating, deploying and maintaining internal tools with web based front end, including monitoring, charting, dashboard design
• Creating and implementing technical solutions for internal team
• Understanding departmental job functions and bottlenecks and producing requirements documents
• Building tools to automate key functions to raise the overall productivity of the tool user

Qualifications:

• BS Degree in computer science or related field
• Fluency in at least 1 scripting language such as Perl, PHP, Ruby or Python (Ruby and PHP preferred)
• 2 plus years of building internal tools, dashboards, monitoring software, with visualization components
• Familiarity with SQL databases in particular MySQL
• Familiarity with Java is preferred
• Excellent communications and documentation skills
• Previous experience with start ups and/or consumer internet companies preferred
• Bonus points for experience with real time charts such as Yahoo stock charts with ajax controls

Director of Operations:

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We are looking for a Director of Operations who can scale the impossible growth. Our member base has grown faster than Skype, ICQ, or Hotmail…Our release cycle is 2 weeks (not counting patches), which certainly keeps life interesting. We believe in scaling smart, not just throwing money or hardware at the problem (smart way can easily be 1000x more efficient) — we know MySQL from the inside, we use Tomcat for session sharing, we use application-aware load balancing — you won't see this at any other company. You won't see us using virtualization… since it's built in to the code. If you want to rewrite scalability history, join us.

Required Experience:

• 5+ years experience in managing data center operations
• Managing people in 24x7 operations
• Pager (Blackberry) carrying
• Experience with hardware vendors, colo and bandwidth providers
• Networking; load balancers, switches (Cisco), peering
• High volume web site (Apache, Tomcat)
• High volume mail servers (MessageSystems)
• Systems monitoring (Nagios, Zabbix, etc)
• Maintaining DNS
• Managing Content Delivery Network (CDN)
• Linux, Kickstart, YUM
• Software release, release management, configuration management
• System administration experience

Web Developer:

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We are looking for a skilled Web Developer to join our team. You will be coding all aspects of our site and service. We are building a very dynamic site that combines phone service and social networking.

Candidates with recommendations from managers, co-workers or clients on their LinkedIn profile receive priority. Also, if applying via LinkedIn, please follow up on your application with an introduction if we share a mutual connection who knows your work (former manager, reporter, blogger, etc.).

Must have skills:

• JSP, Servlets, server side Java
• HTML, CSS
• AJAX or JavaScript
• Knowledge of browsers

Nice to have skills:

• Tomcat, Apache
• SEO
• MySQL
• Linux
• REST / SOAP

Extra points for:

• XHTML, XSLT

Billing Systems Java Developer:

Please apply directly via email now.

Responsibilities:

Key role in development of Jaxtr's Billing System. Reporting to the Billing Systems Develop manager, you will be responsible for code reviews of off-shore team, java coding where necessary, architecture design and system design reviews, scheduling and resource management.

Qualifications:

• 5+ year Java development experience.
• Experience in Java server development using Tomcat on a Linux platform.
• Java server development using Tomcat in Linux environment.
• Systems architecture and design experience.
• Strong analytical skills.
• SQL proficiency.
• Experience working with messaging systems.
• Outstanding communication skills.

Nice to have:

• Credit card processing systems development experience.
• Distributed processing architecture design experience.
• Anti-Fraud systems & algorithms design and development experience.
• Team management or group leader.

Director, User Experience & Interaction:

Please apply to the hiring manager directly via LinkedIn, or contact us via email.

We believe that user experience is critical to our success! This is an opportunity for someone who is skilled at creating simple and intuitive web applications, and has the skills & ambitions to grow a user experience team.

Responsibilities:

• Champion user needs and define the user experience according to user and business requirements
• Author design specifications, including interaction models, work flows, wireframes, information architectures, and user interfaces
• Collaborate with visual designers and give recommendations to enhance the visual design
• Partner with Product and Engineering to implement interactive techniques and technologies

Qualifications:

• Demonstrated experience in designing rich web applications
• Degree in Human-Computer Interaction, Cognitive Science, or related field preferred.
• Expertise in interaction design
• Facile in either visual design or HTML/CSS
• Experience with rapid prototyping and AB testing methodologies
• Understanding and passion for new interaction technologies such as AJAX and Flash
• International and startup experience a plus

Flash Developer/Designer:

Please apply to the hiring manager directly via LinkedIn, or contact us via email.

We are seeking a Flash developer who is motivated by creating the next generation of social communications widgets for jaxtr. The ideal candidate has a passion for user interaction and is motivated by designing simple to use and visually engaging widgets.

Responsibilities:

• Develop Flash widgets and interactive elements.
• Create experiences that users like and adopt and drive company metrics.

Qualifications:

• 5+ years Flash experience (ActionScript).
• Passion for user interaction, interfaces, and usability.
• Desire to work in a fast-paced, early stage environment.
• Ability to learn new technologies quickly, and do a bit of everything.
• Prior experience with graphic tools (Photoshop, Illustrator, Dreamweaver, etc.) and HTML/CSS is a plus.

Front-end Developer:

Please apply to the hiring manager directly via LinkedIn, or contact us via email.

We are seeking a front-end developer who is interested in working with our product team to build next generation web applications. The ideal candidate has an eye for visuals and is motivated by designing simple to use and well-engineered web pages.

Responsibilities:

• Build web pages consistent with existing look and feel of the site.
• Maintain cross-browser compatibility and source-code control.
• Create experiences that users like and adopt and drive company metrics.

Qualifications:

• 2+ years HTML and CSS coding experience.
• Passion for user interaction, interfaces, and usability.
• Desire to work in a fast-paced, early stage environment.
• Ability to learn new technologies quickly, and do a bit of everything.
• Prior experience with graphic tools (Photoshop, Illustrator, Dreamweaver, etc.)

Social Web Developer:

Please apply to the hiring manager directly via LinkedIn, or contact us via email.

This is your chance to create the next viral Facebook and/or OpenSocial app, from the ground up. While you will have access to jaxtr's scalable infrastructure, platform and expertise of other team members, you will be treated as a startup entrepreneur and expected to provide ideas, design concepts and flex your coding muscles by developing virally growing interactive social apps.

Responsibilities:

• Provide ideas and design concepts for social web applications related to jaxtr's core service
• Evaluate public API's/platforms for launching those applications
• Create flows and functional specifications with support of Product Management and User Experience teams
• Develop and build those applications using HTML, JavaScript, JSP and MySQL
• Monitor usage and tune application to optimize viral loops and adoption

Qualifications:

• Prior coding experience using HTML, Java, and MySQL
• Passion for user interaction, interfaces, and usability
• Desire to work in a fast-paced, early stage environment
• Ability to learn new technologies quickly, and do a bit of everything
• Experience developing Facebook or OpenSocial applications is a BIG plus