Jane Street

Trades stocks, bonds and funds as a market maker

Unified Communications Engineer

IT OperationsConfirmed live in the last 24 hours

Full-timeLondon, UKNo salary listedIn-person

About the Job

Requirements

At least 7 years of in-depth experience configuring and supporting the Cisco Unified Communications and Collaboration Product Suite in a multi-cluster environment, including Cisco Unified Communications Manager version 14 or later, Cisco Meeting Server, and Cisco Expressway.
Excellent knowledge of Session Initiation Protocol, including implementing Session Border Controllers and Public Switched Telephone Network Session Initiation Protocol trunking.
Deep experience upgrading and maintaining Cisco unified communications products, including phones, softphones, and video conferencing endpoints.
Knowledge of unified communications compliance products and experience with modern voice recording platforms such as Verint, NICE, and Red Box, and messaging archiving products such as Movius, LeapXpert, and Smarsh.
Knowledge of Cisco application programming interfaces related to unified communications products and experience creating application programming interface automations using Python or PowerShell.
Experience integrating cloud-based conferencing technologies such as Webex, Zoom, and Microsoft Teams with on-premises infrastructure.
Ability to troubleshoot custom application programming interface-based integrations with unified communications products and services.
Ability to collect and interpret log files and collaborate with support partners to solve problems while maintaining system stability and managing expectations with colleagues and users.
Familiarity with virtualizing Cisco unified communications applications on enterprise-grade servers from vendors such as HPE, Dell, and Cisco.
Strong understanding of current security standards and expectations, with the ability to troubleshoot issues and resolve them creatively.
Fluency in English

Responsibilities

Grow, monitor, and manage the firm’s global voice and video infrastructure.
Improve tooling and monitoring for collaboration and telephony infrastructure.
Deploy unified communications products and services.
Execute software and hardware configuration changes globally while minimizing downtime for collaboration services.
Monitor alarms generated by voice and video systems.
Juggle project-related tasks and serve as an escalation point for users and other technology groups.
Interface with IT Operations, Cybersecurity, Networking, and other technology teams to provide capacity planning, develop standards and best practices, and improve documentation across the global unified communications infrastructure.

About the position

We are looking for a Unified Communications (UC) Engineer to help grow, monitor and manage our global voice and video infrastructure. This role sits within our larger IT group and will require you to deliver smart solutions in a fast-paced environment without disrupting the daily workflow.

The UC team is responsible for all tasks and infrastructure related to collaboration and telephony. Projects include improving tooling and monitoring, deploying UC products and services, and executing software and hardware configuration changes globally, all while minimising downtime for various collaboration services.

Our UC Engineers are experts at multitasking, monitoring alarms generated by our voice and video systems, juggling project-related tasks and serving as an escalation point for users and other technology groups. You’ll interface daily with various tech teams across the firm—including IT Operations, Cybersecurity and Networking—to provide capacity planning, develop standards and best practices and improve documentation across our global UC infrastructure.

The right candidate will be passionate about solving complex problems and supporting users with robust and flexible technical solutions.

About you

Have 7+ years of in-depth experience configuring and supporting the Cisco UC and Collaboration Product Suite in a multi-cluster environment, including:

Cisco Unified Communications Manager versions 14+
Cisco Meeting Server
Cisco Expressway

Have excellent knowledge of SIP, including implementing Session Border Controllers and PSTN SIP trunking
Deeply experienced with upgrading and maintaining Cisco UC products, including supporting phones, softphones and video conferencing endpoints
Knowledgeable about UC compliance products, and experienced with modern voice recording platforms (Verint, NiCE, Red Box, etc.) and messaging archiving products (Movius, LeapXpert, Smarsh, etc.)
Knowledgeable about Cisco APIs related to UC products, and experienced with creating API automations using Python, PowerShell, etc.
Experienced with integrating cloud-based conferencing technologies (Webex, Zoom, Teams, etc.) with on-premise infrastructure
Comfortable troubleshooting custom API-based integrations with UC products and services
Able to collect and interpret log files, collaborate with support partners to solve problems while maintaining system stability and properly manage expectations with colleagues and users
Familiar with the virtualisation of Cisco UC applications on enterprise-grade servers (HPE, Dell, Cisco, etc.)
Have a strong understanding of current security standards and expectations, and an ability to troubleshoot and use creative thinking to resolve issues
Fluent in English

If you're a recruiting agency and want to partner with us, please reach out to [email protected]

About the Company

Jane Street

Trades stocks, bonds and funds as a market maker

Jane Street trades stocks, bonds, options, and exchange-traded funds with its own money as a market maker, a firm that constantly quotes prices to buy and sell so other investors can trade whenever they want. In 2025, it made more money from trading than JPMorgan Chase or Goldman Sachs, the biggest trading banks on Wall Street. Its traders, researchers, and engineers build computer-driven strategies that trade on exchanges and other venues around the world, and it also trades directly with large institutional clients. It earns the small gap between buying and selling prices across huge volumes, plus gains on positions it holds for minutes to days. Jane Street was founded in 2000 and is based in New York.

Company size: 1,001-5,000
Company stage: Debt Financing
Total funding: $90.8B
Headquarters: New York City, New York
Founded: 2000

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