Senior Platform Engineer

PolyAI
London, United Kingdom
Last week
£40,000 – £70,000 pa

Salary

£40,000 – £70,000 pa

Job Type
Permanent
Work Pattern
Full-time
Work Location
Hybrid
Seniority
Senior
Education
Degree
Posted
29 Apr 2026 (Last week)

Benefits

Equity 25 days holiday Flexible working from home policy Work from outside of the UK for up to 6 months each year TELUS Health EAP 24/7 Enhanced parental leave Bike2Work scheme Annual learning and development allowance One-off WFH allowance Company-funded fertility and family-forming programmes Menopause care programme with Maven Private healthcare and dental cover Sabbatical Program: 5-week paid sabbatical after 5 years of employment

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.

Your responsibility will involve:

  • Delivering production-ready, reliable, and scalable infrastructure on time
  • Improving developer experience and define technical standards for the entire company
  • Designing, deploying, and managing scalable, secure, and resilient cloud infrastructure on AWS and Azure.
  • Collaborating with engineering and security teams to define cloud architecture and implement best practices.
  • Automating cloud operations with infrastructure as code using tools such as Terraform.
  • Monitoring cloud infrastructure performance, identify issues, and implement solutions to ensure high availability and reliability.
  • Optimising cloud resources for cost-efficiency while maintaining performance and security standards.
  • Engaging in incident response and troubleshooting efforts for cloud-related issues.
  • Staying up-to-date with the latest cloud technologies and trends, and providing recommendations for continuous improvement.

Minimum Requirements:

  • 5 years of relevant professional experience - preferably coming from a software engineering background.
  • Strong Python programming.
  • Experience with Kubernetes in production and containerisation.
  • Proven experience with CI/CD and release management - Azure DevOps or GitHub Actions preferable.
  • Hands-on experience managing a cloud production environment in AWS or Azure.
  • Infrastructure as Code (IaC) experience using Terraform.
  • Bachelor’s degree or Master’s in Computer Science, Engineering, a relevant technical field or equivalent practical experience.

Preferred Requirements:

  • Proficiency in one of the following programming languages - Go, TypeScript/JavaScript.
  • Familiarity with ArgoCD and GitOps practices for continuous deployment.
  • Experience with Agile methodologies, such as scrum, kanban, and sprints.
  • A love of learning and enjoyment in trying new things.
  • Enjoys technical challenges and wants to contribute directly to solutions.

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

🏝 Tenure-Based PTO: You will receive 25 holidays when you join and will gain an additional 1 day after 2 years of service, then 1 day each year until capped at 32 holidays

🏡 Flexible working from home policy

🌎 Work from outside of the UK for up to 6 months each year

🫂TELUS Health EAP 24/7 - offers you and your chosen family confidential, judgment-free support for any work, health, or life challenge

🧡 Enhanced parental leave

🚲 Bike2Work scheme

📚 Annual learning and development allowance

🏡 We’re all about making WFH work for you - that’s why we offer a one-off WFH allowance when you join. Offering perks like noise-cancelling headphones or a comfortable desk chair to boost your comfort and focus!

👨‍👩‍👧 Company-funded fertility and family-forming programmes

🌸 Menopause care programme with Maven

🏥 Private healthcare and dental cover, discounts on gym members and relaxation apps, and access to a range of mental health programs

🌎 Sabbatical Program: 5-week paid sabbatical available after 5 years of employment


At PolyAI, we take great pride in our values - they guide everything we do. We believe that a strong culture leads to meaningful work and lasting impact.

Our core values are:


Only the best
We expect the best from our people, we hire people that expect the best from themselves, and we nurture this drive for excellence.


Ownership
We care deeply about what we do. We take ownership of our initiatives, decisions and outcomes.


Relentlessly improve
We demand more from ourselves and are always evolving. Continuous, obsessive improvement is the only way we will transform the world of conversational AI.


Bias for action
Our world moves quickly and so do we. We take calculated risks and we deliver impact fast.


Disagree and commit
We are all working toward the same goal. If we donʼt agree with something, we work hard to understand it and when a decision is made, we accept it and give it our all.


Build for people
We want the world to enjoy the experiences they have with us. We are building for a future that prefers automation.


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.


Kindly find the Privacy Notice for our recruitment process by following the link here. This document provides important information regarding how we handle your personal data throughout the recruitment journey.

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