---
title: 'Senior Software Engineer, Media at Symphony Communication Services'
canonical: 'https://feeny.ai/job/senior-software-engineer-media-symphony-communication-services-belfast-northern-tcfha83t4qmj'
type: 'job'
last_seen: '2026-10-18'
---

# Senior Software Engineer, Media at Symphony Communication Services

- **Company:** Symphony Communication Services
- **Location:** Belfast Northern, Ireland
- **Posted:** 2026-07-17
- **Last confirmed live:** 2026-10-18
- **Apply:** https://symphony.com/company/apply?gh_jid=8038496

## 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:

We are seeking a seasoned Senior Backend Software Engineer to join our Market Voice and Video (MVV) development team. The MVV team owns the core audio and video communication infrastructure within the Symphony app, heavily utilizing WebRTC.

As a senior member of this small, agile team, you won’t just maintain server-side media backend services, you will also drive architectural decisions, mentor team members, and take full ownership of robust, scalable backend systems. We are incredibly passionate about engineering excellence and CI/CD best practices. If you are someone who proactively shares ideas, challenges the status quo, and takes extreme accountability for deliverables, you'll fit right in.

## Responsibilities

- Architect & Implement: Lead the design, implementation, and testing of highly scalable server-side microservices utilizing Java (Spring Boot) and TypeScript, ensuring optimal interaction with the broader Symphony ecosystem.
- CI/CD Leadership: Drive and evolve our Continuous Integration and Continuous Deployment (CI/CD) strategies, keeping Jenkins at the center of our automation pipeline.
- Cross-Functional Collaboration: Partner closely with product management to define technical requirements and collaborate across engineering teams to execute seamless product integrations.
- System Reliability: Investigate complex production issues or performance bottlenecks.Document thorough failure analyses, post-mortems, and root cause analyses (RCA) to continuously improve platform resilience.
- Mentorship & Quality: Lead constructive, collaborative backend design sessions and code reviews. Elevate the team's engineering standards by mentoring junior and mid-level developers.

Required Qualifications

- Education & Experience: BS/MS in Computer Science, Engineering, or a related field, with 7+ years of practical, hands-on experience in production software development.
- Backend Expertise:
- Deep, expert-level proficiency in Java and its ecosystem, with extensive experience building enterprise microservices using the Spring Framework (Spring Boot).
- Professional experience writing clean, scalable backend code in TypeScript (e.g., Node.js ecosystem).
- DevOps & Infrastructure: Strong experience working with containerization, orchestration, and Infrastructure as Code (IaC) tools, specifically Docker, Kubernetes (K8s), Terraform, Git, and Jenkins.
- Cloud Proficiency: Proven experience designing, deploying, and maintaining high-availability services within GCP and/or AWS cloud environments.
- Soft Skills: Exceptional proactive communication skills, a highly collaborative mindset, and a proven track record of end-to-end delivery ownership.

Standout Qualifications (and What You'll Learn Here)

- Direct experience working with WebRTC, media streaming backend services, or audio/video protocols
- Ability to read and understand basic C++
- Knowledge of the SIP and RTP protocols
- Core understanding of Session Border Controllers (SBC), Media conference servers, and Selective Forwarding Units (SFU)

Compensation:

- Salary Range: £55,000 - 65,000 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.

## About Symphony Communication Services

## Company Overview
- **One-liner**: Symphony is an AI-powered communication and technology company providing a secure, compliant collaboration platform for global financial markets.
- **Entity Type**: Private (multiple funding rounds, total $511M raised)
- **Headquarters**: New York, United States
- **Founded**: 2014
- **Founders**: Founded by a consortium of Wall Street firms (individual names not publicly disclosed)

## Core Business
- **Primary Industries**: Financial Services, Enterprise Communication, Regulated Markets
- **Target Customers**: B2B – Investment banks, asset managers, hedge funds, wealth managers, and other financial institutions
- **Mission / Purpose**: “Uncompromising data security & trust” – enabling secure, compliant communication and workflow for regulated industries [symphony.com](https://symphony.com/)

## Products & Services
- **[Symphony Messaging](https://symphony.com/)**: Secure enterprise chat and omnichannel messaging (including WhatsApp, SMS, WeChat, LINE, mobile voice), with open APIs, 100+ apps, and 1,500+ bots. SaaS platform.
- **[Cloud9](https://symphony.com/)**: Cloud-native trader voice system – the modern turret phone for front-office professionals in trading and brokerage. Hardware/software (Software-Defined Voice).
- **[Symphony Directory](https://symphony.com/)**: Rich industry-specific profiles for finding and contacting counterparties securely. SaaS.
- **[Symphony Analytics](https://symphony.com/)**: Data-driven insights and market intelligence built on the communication data layer. SaaS.
- **[Compliance-as-a-Service](https://symphony.com/)**: Archiving, surveillance, and regulatory compliance solutions for electronic communications. SaaS.
- **[AI Agent Studio](https://symphony.com/)**: (Announced 2026) Platform for building and deploying secure AI agents and market intelligence bots. SaaS.

## Market Standing
- **Valuation / Market Cap**: Not publicly disclosed (private company)
- **Key Metrics**:
  - Annual Revenue: $84.0M (LinkedIn estimate) [linkedin.com/company/symphonycomm](https://www.linkedin.com/company/symphonycomm)
  - Total Funding: $511.0M across 5 rounds (Series A through Series E) [linkedin.com/company/symphonycomm](https://www.linkedin.com/company/symphonycomm)
  - Employees: 346 (as of early 2026, +3.7% YoY) [linkedin.com/company/symphonycomm](https://www.linkedin.com/company/symphonycomm)
  - Clients: Over 1,000 institutions served, including the largest global asset managers and investment banks by AUM and revenue [symphony.com](https://symphony.com/)
- **Notable Investors / Partners**: [linkedin.com/company/symphonycomm](https://www.linkedin.com/company/symphonycomm)
  - Mitsubishi UFJ Financial Group, Standard Chartered Bank (led Series E)
  - 14 investors in Series A (including several Wall Street banks)
  - 3 investors in Series D, 14 in Series C
  - *Partners*: Microsoft Teams (direct federation), WhatsApp (direct integration), and other major chat/collaboration platforms.
- **Growth Signals**:
  - +3.7% headcount growth YoY (2025–2026)
  - 11 offices worldwide (New York, London, Singapore, Paris, Tokyo, Sophia Antipolis, Belfast, Stockholm, etc.)
  - Engineering hubs in Sophia Antipolis (France), Belfast (UK), and Stockholm (Sweden)
  - Launched AI Agent Studio at Innovate 2026 conference
  - Recent acquisitions: Cloud9 Technologies (2021), StreetLinx (2021)
  - Awards: WealthTech 100, Tech4Fin, WealthBriefing EU Awards

## Competitive Advantages
- **Purpose-built for financial services**: Deep compliance, archiving, and surveillance capabilities (no consumer-grade chat platform can match regulatory controls).
- **Secure federation**: Uniquely allows connecting Microsoft Teams, WhatsApp, and other channels into one auditable, compliant environment.
- **Cloud9 dominance**: Dominant player in cloud-native trader voice (replacing legacy turret systems) with a large, interconnected user community.
- **Open platform**: Extensive API, bot, and app ecosystem (100+ apps, 1,500 bots) enabling deep workflow integration.
- **Trusted network**: Verified counterparty directory reduces friction in capital markets communication.

## Strategic Focus
- **AI-powered communication**: Expanding AI Agent Studio and market intelligence capabilities while maintaining security and compliance.
- **Compliance-as-a-Service**: Growing the SaaS compliance offering to capture regulatory spending.
- **Embedded collaboration**: Deepening integrations with workflow platforms (e.g., Microsoft Teams) and mobile omnichannel.
- **Global expansion**: Continued presence in North America, Europe, Middle East, and APAC with local experts.
- **Product unification**: Tightening integration between Messaging, Voice, Directory, and Analytics to create a seamless experience.

## Why Work Here
- **Culture**: Described as a “highly talented, innovative workforce” with a “diverse 30+ member leadership team” [symphony.com](https://symphony.com/company/careers/). Employee rating 3.8/5 on LinkedIn (233 reviews), with culture 3.7, work-life 3.7, compensation 3.6, career 3.3 [linkedin.com/company/symphonycomm](https://www.linkedin.com/company/symphonycomm)
- **Engineering & Innovation**: Three dedicated engineering hubs (Sophia Antipolis, Belfast, Stockholm). Known for organizing annual “Innovate” events and hackathons.
- **Work Policy**: Not explicitly stated, but multiple global offices suggest a hybrid model. Technical roles span on-site and remote (open positions include Security Operations Engineer, SRE, SDET).
- **Perks**: Modern office spaces (new Belfast office with balcony), competitive compensation, and involvement in cutting-edge AI/security projects in the high-stakes finance world.
- **Job Seekers Note**: 15 active job postings (as of mid-2026) with a 66.7% increase in postings YoY. Roles span software engineering, security, support, sales, and management [linkedin.com/company/symphonycomm](https://www.linkedin.com/company/symphonycomm)

## Sources
1. [symphony.com](https://symphony.com/)
2. [linkedin.com/company/symphonycomm](https://www.linkedin.com/company/symphonycomm)
3. [globaldata.com](https://www.globaldata.com/company-profile/symphony-communication-services-llc/)

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