Senior Platform Engineer

Xapien
London
Company Description

Xapien is one of the brightest and most exciting tech companies to appear over the last few years. The AI-powered automated research platform is redefining background research and gaining critical success from clients.

Every business in the world, in every sector, needs to know who they are engaging with and Xapien helps them answer that question - quickly and accurately. We use deep Natural Language Processing, AI and huge scale cloud infrastructure to automate human research.

We locate, collect, read, distil and assimilate hundreds of thousands of fragments of information - allowing us to understand a person or company like a human would.

We deliver daily insight to major financial institutions, industry regulators, charities and commercial organisations - and the potential market for the solution is enormous.

Founded in 2018 by experts in national intelligence and anti-money laundering, Xapien aims to revolutionise business due diligence with its AI-driven technology. Since securing Series A funding, our team has grown to 50, and we've achieved notable recognitions, including ranking 33rd globally in Chartis Research's FCC50 and winning the Entity Management award.

Job Description

The Role
We are looking for an experienced Senior Platform Engineer to help us meet the exciting challenge of scaling our platform to handle growing demand. Our product is experiencing tremendous growth, and we need to ensure that we continue to deliver accurate insights while doubling down on how we architect, coordinate, and maintain our subsystems.

This role requires someone who thrives in a fast-paced environment where continuous innovation and refinement are key. You will play a crucial role in shaping how our technology evolves, ensuring that our systems are scalable, reliable, and capable of meeting future demands. Working alongside our engineering leadership, you'll be at the heart of building capability for system reliability & scale, while also staying hands-on with the implementation of designs from system architecture.

If you have a deep understanding of infrastructure and modern cloud architectures, coupled with a passion for taking ownership & accountability of project delivery, this is an ideal opportunity to make a lasting impact.

Core Responsibilities
  • Designing, building, and maintaining scalable, reliable, and secure cloud infrastructure on AWS using technologies including EC2, ECS, Lambda, SQS, DynamoDB, RDS, Cognito, S3, and SNS.
  • Developing and deploying cloud-native applications following microservice design patterns.
  • Implementing infrastructure as code using tools like Terraform or CloudFormation to automate deployment and scaling processes.
  • Automating deployment pipelines and CI/CD processes to ensure rapid and reliable delivery of software.
  • Monitoring system performance, troubleshooting issues, and optimizing infrastructure for performance and cost-efficiency.
  • Collaborating with the development team to ensure seamless integration and deployment of applications.
  • Ensuring best practices in security, compliance, and data protection are followed across all infrastructure components.
  • Mentoring and providing guidance to junior engineers, promoting a culture of continuous learning and improvement.
Qualifications
  • AWS - You should bring a strong understanding of AWS with practical experience in deploying, managing and optimising cloud-based applications, ensuring they remain reliable and scalable. More than just EC2 deployments you will be comfortable using ECS, Lambda, SQS, S3, etc.
  • Go / C# - We use Go for all of our core services that require scaling e.g. API's / load balancers. We use C# for business logic. You will bring expertise in developing software using either Go or C#, preferably in a professional environment but personal projects which you can discuss in detail could also suffice.
  • Linux / Bash Scripting - You will be comfortable navigating around in a Linux ecosystem, setting up firewalls, Infrastrucure-as-Code (IaC), installs & bash scripting
  • Terraform - You will have a strong track record of successfully using Terraform in a professional CI/CD environment
  • Microservices architecture design skills - You will bring experience in understanding how to architect cloud-based systems using microservices, ensuring each component is scalable, secure, and reliable. You will demonstrate the ability to identify a problem and describe / draw a high level solution to present to architecture for build.
Additional Information
  • Equity in the business in the form of shares - You will own a meaningful part of the business through our employee shares & equity programme
  • Unlimited Paid Time Off for you to take time to recharge.
  • A professional development fund of £1,000 per year - we invest in our people and always encourage growth!
  • Private health and Life insurance 🩹
  • High-spec MacBook + £200 for equipment setup
  • Regular team lunches and social events , from go-karting to mini golf to karaoke to rounders in the park
  • X day - one whole company day off every February so we can all switch off Slack and reset 📴
  • Flexible working + flexible hours (2 days per week in our WeWork in Moorgate)
**Please note, we cannot offer sponsorship to applicants (or transfer existing visas) at present**

Salary: up to £100,000 + bonus + equity (dependent on experience)

Our Values
  • Take ownership - We keep our organisation simple, valuing people over policies. We encourage ownership and decision-making.
  • Better together - We care about each other and go out of our way to help colleagues succeed. We value relationships and take a genuine interest.
  • Transparent - Our business is creating transparency in business relationships; so internally we are 'default share', even when it feels uncomfortable.
  • Glass-half-full - This is about being real but still choosing to be optimistic. We celebrate wins and encourage each other to build forward.
  • Be pioneers - We are leaders not followers - bold, ambitious and can-do. We don't start with what's possible, we start with what we want to achieve, then ask 'what has to be true'?
  • Move fast - This is our moment to make our mark on the world. So we work to ambitious deadlines, launch fast and iterate, always streamline, and remain decisive amid huge uncertainty.
  • Value learning - We are all learning, always. We take time to explain, even if it's quicker to do it ourselves.
  • Always decent - We are polite, thankful and straightforward. Everyone is down-to-earth, informal and approachable.
  • A players - Working here should be stretching and exhilarating. We only hire, and keep, the best, enquiring people that will keep us on our toes.
Posted 2025-06-07

Recommended Jobs

Locum Respiratory Physiologist

Globe Locums
London

Globe Locums About Globe Globe Locums, the UK's medical recruitment agency run by clinicians for clinicians have the following Respiratory Physiologist job available: Respiratory Physiologis...

View Details
Posted 2025-05-31

Management Accountant - 12 month FTC

Prep Kitchen
London

About Us Prep Kitchen is the fastest-growing meal prep company in the UK, ranked #27 in The Sunday Times Hundred 2024, a list of the nation’s 100 fastest-growing private companies. We provide conv...

View Details
Posted 2025-05-25

Estate Agent Manager

The Property Experts
London

Are you an experienced estate agency manager, a lister, or a valuer looking to take your career to the next level, earn more money, and work flexible hours? Or an entrepreneur looking for a new oppor...

View Details
Posted 2025-05-27

Data scientist

Cornucopia IT Resourcing
London

Job Description: Data Scientist – AI & NLP Innovation London (Hybrid) Our client is a dynamic investment firm using AI to reshape financial insight Are you a data scientist pa...

View Details
Posted 2025-06-06

Interim Commercial Solicitor

Michael Page
London

As an interim commercial solicitor you will be advising on a broad range of commercial contracts with a focus on tech, telecoms and media contracts. You will be advising a range of clients to include...

View Details
Posted 2025-05-19

Solicitor

East Ayrshire Council
London

Represent the Council in all litigation matters and provide legal advice and support to all Committees and to Service Units of the Council in order to assist with the promotion, delivery and integrati...

View Details
Posted 2025-05-21

Commis Chef

Restaurant Associates
London

We have an exciting opportunity for an ambitious Commis Chef to help us create exceptional food experiences for Restaurant Associates on a full time basis, contracted to 40 hours per week. As a Co...

View Details
Posted 2025-06-07

M&A Analytics Director

EY
London

Director – M&A Analytics – London At EY, you’ll have the chance to build a career as unique as you are, with the global scale, support, inclusive culture and technology to become the best versio...

View Details
Posted 2025-05-24

.NET Developer

Noir
London

.NET Developer, .NET 9, C# - Break Into Banking - London (Tech stack: .NET Developer, .NET 9, C#, Azure, Angular 19, Multithreading, RESTful, Web API 2, JavaScript, Programmer, Full Stack Engineer, A...

View Details
Posted 2025-05-26

Locum Sonographer Locum London, United Kingdom Ref: VAC-60333 Salary: £45-50 Start Date: ASAP Division: Sonography Disciplines: General

Globe Locums
London

Globe Locums About Globe Globe Locums, the UK's medical recruitment agency run by clinicians for clinicians have the following Sonographer job available: Please see the details below. Ult...

View Details
Posted 2025-05-27