---
title: 'Software Engineer in Test (Back-End) at Symphony Communication Services'
canonical: 'https://feeny.ai/job/software-engineer-in-test-back-end-symphony-communication-services-belfast-0kp3xe59pnp4'
type: 'job'
last_seen: '2026-09-06'
---

# Software Engineer in Test (Back-End) at Symphony Communication Services

- **Company:** Symphony Communication Services
- **Location:** Belfast
- **Posted:** 2026-06-16
- **Last confirmed live:** 2026-09-06
- **Apply:** https://symphony.com/company/apply?gh_jid=7989017

## 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:

Symphony is looking for an experienced Software Development Engineer in Test (SDET) who is eager to deliver a best-in-class software to Symphony’s enterprise customers.

This role will include working with the engineering teams across multiple time zones and supporting the product by reinforcing quality via automated tests. Building and maintaining a test infrastructure in code which is able to fully automate both client and server, where you will have to develop mock servers, write automation cases and execute them on different platforms.

Responsibilities:

- Design, build and maintain Test Automation framework for a complex multi-cloud infrastructure (AWS and GCP) for large enterprise customers
- Troubleshoot, stabilize and optimize the various day-to-day existing QE automation jobs
- Continuously drive to convert any manual test cases to be part of the Test automation framework
- Define best practices to implement and maintain, build, and support Test automation framework
- Estimate test efforts, analyze test results and communicate to the stakeholders
- Integrating your work in a fully automated CI/CD pipeline.
- Responsible for quality of multiple products coming out of the organization, including their QA Sign-Off and releasing coordination
- Develop innovative solutions for quality engineering, data analysis and highly generic automation frameworks to promote Quality as a Service

Required Qualifications:

- 3+ years experience of in QE automation tools for Back-End, API, Platform level, such as rest-assured, soap.
- Passionate about automating all things and understand the importance of being a customer advocate
- Professional experience in designing, developing and supporting test automation frameworks for React TS or Javascript web-applications. Development skills are a must
- Proven scripting experience in one or more of the following languages - Java, Typescript, Javacript, Python, Groovy, Ruby, Perl
- Working knowledge of JIRA and test management tools
- Knowledge of development tools to troubleshoot web-based applications is a plus
- Experience in client-server infrastructure, UI, backend APIs
- Experience with GitHub or similar source code management tools
- Worked in a Agile/Scrum environment supporting Cloud products
- Proven experience in QA Sign-Off and Release process

Compensation:

- Salary Range: £40,000 - 50,000 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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