SECTION I · THE BRIEF
Brief #17717Updated 05 AUG 2026BELFASTGreenhouseY COMBINATOR
Employbl Company Profile

Senior Site Reliability Engineer

Symphony Communication Services Holdings, LLC designs and develops software solutions. The Company offers collaboration platform that transforms the way users communicate effectively and securely with a single workflow…

Location
Belfast
Company size
10–500
Posted
3w ago
Via
Greenhouse
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Senior Site Reliability Engineer · Symphony Communication Services

View company profile
Job title
Senior Site Reliability Engineer
Job location
Belfast
Job description

 

About us @Symphony

Secure. Connected. Intelligent.

Symphony is an AI-powered communication and technology company fueled by interconnected platforms: messaging, voice, directory and analytics.

Our end-to-end encrypted technologies enable over 1,400 institutions to accelerate AI impact, prioritize data security, navigate complex regulatory compliance and optimize business interactions.

 

Role Description:

 

As a Site Reliability Engineer, you will work with Agile engineering teams to provide production insight into running and operating software at-scale in a globally distributed and highly available cloud based system.

You will guide the team to consider resiliency, scalability and operability implications in the choices they make during the development cycle to help foster an ownership in production mentality ("You build it, you own it").

You will also own and develop our platform by implementing and championing GitOps principles. You will play a hands-on role helping the team meet technical, operational, schedule, and business requirements.

The ideal candidate will be a systems problem solver with a passion for crafting products that deliver incredible customer experiences, have deep experience with infrastructure, operational automation, data driven metrics collection, modern platform management, and a true desire to automate it rather than do it repeatedly.

 

Responsibilities:

  • Design, build, and maintain highly scalable and reliable infrastructure using Infrastructure-as-Code (IaC).
  • Manage and optimize Kubernetes clusters, leveraging Helm and ArgoCD for efficient application deployment and lifecycle management.
  • Administer and troubleshoot Linux-based systems, ensuring their performance, security, and availability.
  • Work extensively with both GCP and AWS services, architecting and managing cloud-native solutions.
  • Implement robust observability practices, including monitoring, logging and alerting to proactively identify and resolve issues, using Splunk and Grafana.
  • Develop and maintain automation tools using languages such as Python and Go to streamline operations and improve efficiency.
  • Provide production support, responding to incidents and outages, and participating in a 24/7 on-call rotation.
  • Troubleshoot complex networking issues and optimize network performance.
  • Engage in communications across all areas of the organization.

 

Required Qualifications:

  • Strong experience with IaC.
    • Required: Terraform
    • Nice to have: Terragrunt and Ansible
  • Deep understanding of Kubernetes and Helm.
  • Extensive experience with Linux administration and troubleshooting.
  • Hands-on experience with GCP and AWS services and cloud-native architectures.
  • Experience in implementing observability solutions.
  • Solid understanding of networking concepts and protocols.
  • Ability to work both independently and collaboratively.
  • Ability to lead and work on projects.
  • Ability to multitask and adapt quickly to changing priorities.
  • Excellent communication and problem-solving skills. We have an international team, so good communication skills are essential.
  • Willingness to participate in a 24/7 on-call rotation.

This role offers a challenging and rewarding opportunity to work on cutting-edge technologies and make a significant impact on the reliability and scalability of our systems.

 

 

Compensation:

  • Salary Range: £ 60,000 - 70,000 base salary per year
  • Bonus Plan

 

Benefits and Perks:

  • Regional specific competitive benefits
  • Build your own Benefits (BYOB) perk
  • Local events, team building, and development opportunities 

 

We are an equal opportunity employer and value diversity at our company. We do not discriminate on the basis of race, religion, color, national origin, gender, sexual orientation, age, marital status, veteran status, or disability status. We will ensure that individuals with disabilities are provided reasonable accommodation to participate in the job application or interview process, to perform essential job functions, and to receive other benefits and privileges of employment.

 

 

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Symphony Communication Services headquarters

New York, NY

Company size

10500 employees

Founded

2014

Total raised

$1,150,000

View company profile ↗

Funding rounds

  • Pre Seed$500K
  • Seed$200K
  • Seed$300K
  • Seed$150K