Senior Platform Engineer Telephony / VoIP / Linux

Are you a senior engineer who thrives on owning mission-critical platforms, solving complex real-time problems, and improving reliability at scale? PiPcall is looking for a Senior Platform Engineer to take technical ownership of our core telephony platform. This role is best suited to someone with strong Linux systems expertise, solid SIP / VoIP knowledge, and hands-on experience supporting production environments where performance, uptime, and troubleshooting depth really matter.

Role snapshot:

Senior Platform Engineer Telephony / VoIP / Linux | Full-time | Hybrid / Remote | Salary: Up to £95,000 per annum | Monday to Friday, 9:0018:00

What Youll Be Doing

Own and continuously improve PiPcalls Linux-based telephony platform in production
Design, build, and support real-time voice services using FreeSWITCH and related SIP components
Drive platform reliability, scalability, resilience, and performance across critical services
Troubleshoot complex issues across application, operating system, and network layers
Analyse logs, metrics, traces, and packet captures to identify root causes and prevent recurrence
Improve monitoring, observability, automation, and operational tooling
Collaborate closely with engineers working across backend services, APIs, and platform integrations

What Were Looking For

Essential:

Strong experience running and supporting Linux production systems
Hands-on experience with FreeSWITCH, Asterisk, Kamailio, OpenSIPS, or similar SIP/VoIP platforms
Solid understanding of SIP, networking, and real-time communications in production environments
Strong troubleshooting capability using logs, tcpdump, Wireshark, and system-level diagnostics
Scripting experience in Bash plus at least one of Python, Perl, or PHP
Comfortable taking ownership, making sound technical decisions, and working effectively in a small engineering team

Desirable:

Experience with cloud infrastructure, automation, observability tooling, or relational databases

Why Senior Engineers Join Us

Flexible hours and regular remote working
Competitive salary aligned to experience and technical depth
End-to-end ownership of mission-critical voice infrastructure
A high-trust, low-bureaucracy engineering environment where strong technical judgement is valued
The opportunity to shape platform direction, tooling, and engineering standards as the business grows
Monday to Friday, 9:00 18:00

Whats in It for You

This is a hands-on senior engineering role with genuine ownership of core real-time communications infrastructure. Youll work on a platform that matters to the business, with the scope to influence architecture, reliability, tooling, and operational standards. Its well suited to engineers who enjoy solving difficult production problems, improving systems at scale, and having a visible impact in a small, capable team. As the platform grows, there is clear scope to shape engineering standards and expand your influence.

About PiPcall

PiPcall combines telecoms expertise with modern software engineering to build dependable communications products for businesses that need performance and reliability. We value strong technical judgement, straightforward collaboration, and people who take pride in solving hard problems well. Youll be joining a business where experienced engineers can make meaningful technical contributions without unnecessary bureaucracy, and where platform quality is taken seriously.

Interested?

If you have strong Linux platform experience and a solid background in SIP, VoIP, or telephony systems, this is an opportunity to take ownership of a platform where your technical depth will be valued. If your background matches the essential criteria and youre looking for genuine technical ownership, wed like to hear from you.

Senior Platform Engineer Telephony / VoIP / Linux