Senior Software Engineer (Must be based in UK)

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Overview

Senior Software Engineer (Must be based in UK) PolyAI automates customer service through lifelike voice assistants that let customers lead a conversation. Our voice assistants make it possible for businesses to deliver outstanding customer service that rivals their human agents. Our customers, which include the world’s leading logos, are expanding how they use our platform, driving automation of critical customer service operations and integrating PolyAI into their daily customer service workflows. We’re looking for talented Senior Software Engineers to join one of our three high impact teams:

Runtime ,

Data , and

Product Engineering . All three teams work closely together, share high engineering standards, and solve challenging technical problems at scale, but each has its own mission and area of focus. Responsibilities by team

Runtime : own the global infrastructure that powers real-time voice interactions. Design and optimise systems across VoIP and WebRTC to deliver low-latency, secure, and reliable conversations. Your work shapes the user experience of every call, driving down response times, improving comprehension, and ensuring we meet SLAs for performance and security. Data : lead design and development of features powering insight generation, reporting, and the data-driven backbone of our no-code platform for building voice assistants. Product Engineering : contribute to a cutting-edge low-code platform, building features that enable a simple user experience for interacting with complex AI systems.

You’ll go through a centralised hiring process that lets us get to know your skills and preferences, while you explore which team best aligns with your interests and expertise. At the end, we’ll match you with the team where you can have the most impact. Responsibilities (typical) Building reliable APIs for interacting with the runtime of our Voice Agent deployments. Deploying state-of-the-art speech-to-text, LLMs and text-to-speech models Taking a major role in our software development, through writing code, tests, as well as contributing to design ideas, documents and performing code reviews. Contributing to the implementation of our multi-tenant infrastructure. Requirements 3+ years programming experience in a software engineering role, with strong proficiency in Python Hands-on experience in designing, deploying, and maintaining RESTful APIs Experience with professional software engineering best practices, such as coding standards, code reviews, source control, build processes, and testing Understanding of algorithms, data structures, system design and complexity analysis Bachelor’s degree or Master’s in Computer Science, Engineering, a relevant technical field or equivalent practical experience Proficiency in verbal and written English communication We currently have multiple engineering roles open across different teams. Please apply to the one role that feels like the best match for your skills and experience. Our Talent team will review your application against all open positions. If we believe you may be a stronger fit for another role or team, we’ll ensure your application is considered there as well. We offer competitive compensation based on experience, expertise, and the level of responsibility. This role also includes equity, giving you the opportunity to share in the long-term success of the business. The listed expectations reflect what we’re hiring for, so we encourage you to review the job description carefully. Benefits

Participation in the company’s employee share options plan 25 days holiday, plus bank holidays Flexible working from home policy Work from outside of the UK for up to 6 months each year TELUS Health EAP 24/7 - confidential support for work, health, or life challenges Enhanced parental leave Bike2Work scheme Annual learning and development allowance One-off WFH allowance on joining Company-funded fertility and family-forming programmes Private healthcare and dental cover; discounts on gym members and mental health programs

PolyAI is proud to be an equal-opportunity employer. We celebrate diversity and are committed to creating an inclusive environment for all employees. All employment decisions at PolyAI will be based on the business needs without attention to ethnicity, religion, sexual orientation, gender identity, family or parental status, national origin, neurodiversity status or disability status.

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Location:
London
Salary:
£125,000 - £150,000
Category:
IT & Technology

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