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Sr. Software Engineer, Flex

Job in Greater London, London, Greater London, W1B, England, UK
Listing for: Ceros
Full Time position
Listed on 2026-02-17
Job specializations:
  • Software Development
    Full Stack Developer, Software Engineer, React.js, Cloud Engineer - Software
Job Description & How to Apply Below
Location: Greater London

🌎

Location:

Remote within the UK and Europe

⬆ Reporting Into: Lead Software Engineer, Engineering

About Ceros

At Ceros, you'll help ambitious brands create digital experiences that people actually want to explore. Our platform gives marketers and designers the flexibility to design, build, and publish immersive content. All without code. With Ceros, teams move faster, scale smarter, and deliver work that makes a real impact.

Customers report engagement times that are 80% longer and conversion rates more than 20% higher on Ceros-built experiences. That kind of performance is why leading brands like Workday, Colliers, and McKinsey rely on us. Working here means shaping the future of digital experiences and joining a team that values bold ideas, creativity, and purpose-driven work.

About the Team

As part of the Ceros Product team, you'll be working with a small, cross-functional group of the most talented people you've ever worked with. We hire only passionate and creative people with a proven and unquestionable ability to execute, and every member of the team is equally responsible for moving the product forward.

We have a dynamic company culture that collaborates daily. We care deeply about the user experience, and we debate passionately about our ideas. When you work at Ceros, you check your ego at the door, and you aren't afraid to be honest, especially to yourself. We take our jobs seriously but ourselves not so much. As a member of a remote-first team, you embrace transparency and collaboration.

We care deeply about craft, but we optimise for impact. That means keeping things simple, making pragmatic trade-offs, and building, testing, and iterating quickly based on what actually works for our customers.

The Role

Designing and building the Ceros platform is an ambitious task. We require the best-of-the-best Software Engineers, Designers, and Quality Engineers, ready to build a best-in-class web content design studio, often pushing web browsers to the limits of what's currently possible.

Our software engineers are all full-stack, able to handle whatever work comes their way. This role is no different, however, we anticipate the responsibilities being initially more frontend focused. Working with Software and Dev Ops Engineers, you'll be focused on internal developer efficiency, tackling initiatives such as build time reductions, local development environment improvements, and API refactoring.

We're refactoring a key part of our product to introduce new features that will help our customers take their content creation to the next level. This is a greenfield project focused on innovating a specific component of our product, not merely replicating it. As a candidate, you would be joining one of our modernization teams dedicated to this refactor, playing a crucial role in shaping the future of our product.

Our technology stack includes Web Components, React, NextJS, AWS Aurora, Yjs, Terraform, Docker, Git Hub Actions, and Web Driver.io, among others. While we're driving this innovation, we remain committed to preserving the strengths and stability of the existing product.

Key Responsibilities
  • Writing well-architected, maintainable code, with a focus on solving real user and business problems
  • Planning and leading high-complexity stories and epics
  • Reviewing story plans and offering insights on impacts to other parts of the application
  • Collaborating closely with the Quality Engineering team to write and maintain automated and regression tests, ensuring robust and reliable code
  • Participating in constructive code review sessions that focus on quality, without losing sight of shipping and making progress
  • Focusing on delivering an exceptional user experience, with a strong attention to detail that reflects our commitment to creating intuitive and effective products
  • Participating as a primary on-call resource for service disruptions on rotation
  • Suggesting new technologies and techniques to improve engineer productivity
  • Collaborating with and mentoring your peers on security best practices
  • And finally, deploying your code to production and seeing the customer create something amazing and beautiful with it
Practical stuff…
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