Senior Systems Software Engineer

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 looking for a skilled and motivated Senior Systems Software Engineer to join our team. In this role, you will do Proof‑of‑Concepts, design, develop, and maintain high‑quality software solutions that support our business needs, with a focus on firmware, device drivers, hardware interfaces, and real‑time communication technologies. You will work closely with cross‑functional teams to deliver scalable and efficient applications while following best practices in software development.

If you are passionate about technology, problem‑solving, and working in a dynamic environment, we would love to hear from you!

Responsibilities

• Develop, test, and maintain software applications, ensuring high performance and reliability.
• Collaborate with product managers, designers, and other engineers to define and implement new features.
• Write clean, scalable, and maintainable code following best coding practices.
• Debug, troubleshoot, and resolve technical issues as they arise.
• Participate in code reviews, providing constructive feedback to peers.
• Stay up to date with emerging technologies and contribute to continuous improvement efforts.
• Ensure software security, data protection, and compliance with company standards.

Required Qualifications

Technical Skills

• Agile Tech Fluency: Ability to move fluidly between different programming languages, frameworks, and operating systems without friction.
• Deep Analytical Thinker: Exceptional debugging and root‑cause analysis skills, with a passion for diagnosing complex software behaviors.
• Fundamentals First: Strong grasp of computer science fundamentals, allowing you to adapt to new tools and environments rapidly.
• Communications: Experience with WebRTC, WebSockets, REST APIs.
• Low‑level: Experience in understanding and debugging firmware, device drivers, and USB.

Soft Skills

• Strong problem‑solving and analytical thinking abilities.
• Excellent communication and teamwork skills.
• Ability to work in a fast‑paced, collaborative environment.
• Self‑motivated and eager to learn new technologies.

Education & Experience

• Master’s or Bachelor’s degree in Computer Science, Software Engineering, or a related field.
• 7+ years of experience in software development.

Compensation

• Salary Range: £57,000 – 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.