Systems Administrator

Lime Labs LLC, a new New York City-based software development & technology company with a sister office in India, is looking for a talented Systems Administrator who is self-motivated, enjoys start-up environments, and takes ownership of tasks. This position offers an excellent opportunity for the qualified applicant to work hands-on with a rapidly growing production infrastructure and with a team of talented developers launching innovative web products and services.

Responsibilities:
• Deploying and maintaining all web assets, including production servers, network and storage resources
• Responding to trouble-ticket escalation from both US and India and providing third-tier support for production infrastructure
• Identifying and troubleshooting performance bottlenecks and responding to security incidents
• Participation in shared on-call rotation with other SAs
• Specification of new equipment by request and capacity forecasting and enhancement of existing equipment
• Maintaining quality vendor relations

Qualifications:
• 4-7 years experience deploying and maintaining Linux servers in a production data center environment
• Significant Unix administration experience (Linux focus preferred)
• Understanding of networking fundamentals, TCP/IP protocol stack and OSI/RM
• Familiarity with modern server-class x86 hardware as implemented by major vendors
• Excellent communication and documentation skills
• Understanding of I/O workloads, data storage (RAID, SAN, Logical Volume Management) and backup concepts
• Knowledge of advanced Apache deployments (clusters, proxying, load balancing, SSL)
• SQL database experience (MySQL, PostgreSQL preferred)
• Keen sense of security threats, attack vectors and incident response
• Familiarity with cryptography tools and concepts (SSH, OpenSSL, PGP/ GnuPG, PKI, IPSec)
• Fluency in shell scripting (bash, csh, ksh) and experience in a high-level programming language (Perl, Python, Ruby)
• Experience maintaining standard internet services such as DNS, DHCP, E-Mail (Postfix, Qmail, Sendmail)
• Ability to learn quickly and draw meaningful conclusions from independent research
• Ability to manage multiple simultaneous projects with minimal supervision

Bonus qualifications:
• Virtualization technology (Xen, KVM, VMWare, etc.)
• Remote system administration and monitoring technology (IPMI, SNMP)
• Cisco switch and firewall experience
• IPTables, High Availability and Load Balancing technology
• Configuration management, application deployment and automation technology
• Knowledge of distributed directories and authentication (Kerberos, LDAP, Active Directory) in heterogeneous networks
• Windows or Mac OS X experience
• Ruby on Rails web cluster deployment
• Working with geographically distributed teams

Lime Labs LLC is a member of the Lime Group, home to such companies as Tower Research Capital, Lime Brokerage, Lime Wire, and The Open Planning Project. The Lime Group companies offer a dynamic and intellectually stimulating work environment. While we work hard, we also play hard and believe in supporting our team. We provide free lunches, snacks, and beverages, tickets to NY events, five weeks vacation, and great views from our garden roof deck.