Staff Software Engineer - Client Platform

Quizlet; City Of London; On-site; GBP 80,000 - 100,000; Full time

Job summary

A leading education technology company in London seeks a technical leader for the Client Platform team. This role focuses on designing and delivering scalable systems, influencing cross-platform teams, and providing mentorship. Candidates should have expertise in modern programming languages and strong problem-solving skills. The position requires onsite presence three days a week, fostering collaboration and efficiency.

Benefits

Competitive health, dental, and vision insurance

25 days of annual leave

Professional Development stipend

Pension with employer contribution

Paid Family and Medical leave

Stock option program

Qualifications

• Proven track record of coaching development teams.
• Strong problem-solving skills in cross-platform software.
• Expert-level skills in various programming languages.

Responsibilities

• Design and maintain systems to solve client bottlenecks.
• Define Quizlet’s client platform technical strategy.
• Drive incident investigations and retrospectives.

Skills

Technical leadership

Problem-solving

Debugging

Communication skills

Agility in learning

Tools

Modern programming languages

Cross-platform libraries

Job description

About Quizlet

At Quizlet, our mission is to help every learner achieve their outcomes in the most effective and delightful way. We’re a $1B+ learning platform used by two-thirds of U.S. high school students and half of college students, powering over 1 billion learning interactions each week.

We blend cognitive science with machine learning to personalize and enhance the learning experience for students, professionals, and lifelong learners alike. We’re energized by the potential to power more learners through multiple approaches and various tools.

Let’s Build the Future of Learning

Join us to design and deliver AI-powered learning tools that scale across the world and unlock human potential.

About the Team

Quizlet is right in the middle of transforming our tech stack from thick, “smart” clients to a world of thin, server‑driven clients that are powered by our AI systems. To achieve consistent patterns and move quickly, we are building a Client Platform team focused on solving tech problems that are shared between our Mobile and Web clients (and potentially others in the future).

As the technical leader for this team, you will be a founding member and share in setting the charter and vision for this team. Some things that might fall into your remit include the following: uplevel our client analytics logging and feature flagging systems, standardizing (and building the systems to support) deep linking to experiences and content across our platforms and services, and building mechanisms and tooling that will allow us to test our experiences end‑to‑end and across platforms and marketplaces.

About the Role

As a new team without a firmly defined charter, you will have a big say in what the day‑to‑day of this position looks like. That said, this role will be expected to partner closely with leads across our Mobile, Web, Backend, and Platform teams as well as Product and Engineering leadership.

On a daily basis, you will identify areas where the Client Platform team can drive solutions and partner with your leadership, as well as cross‑team and functional partners to define what a solution entails. Additionally, you will roadmap and deliver that work to your team and others. This work will be highly ambiguous, requiring collaboration across our tech stack and influencing others within the company.

We’re happy to share that this is an onsite position in our London office. To help foster team collaboration, we require that employees be in the office a minimum of three days per week: Monday, Wednesday, and Thursday and as needed by your manager or the company. We believe that this working environment facilitates increased work efficiency, team partnership, and supports growth as an employee and organization.

In this role, you will

• Design, build, and maintain scalable systems that solve key web and mobile client bottlenecks and constraints
• Define and drive Quizlet’s client platform technical strategy, influencing cross‑platform teams and cross‑functional partners
• Actively provide technical mentorship and guidance to other team members
• Partner effectively with dependent and partner engineering teams, influencing their decisions and designs as appropriate
• Drive incident investigations, post mortems, and retrospectives
• Effectively advocate for long‑term improvements to systems and processes
• Implement monitoring and alerting solutions to ensure operational excellence and resiliency
• Stay ahead of industry trends and incorporate new solutions to improve efficiency and reduce costs (both monetary and development/maintenance costs)

What you bring to the table

• Proven track record of technical leadership and coaching development teams
• Strong problem‑solving and debugging skills in cross‑platform and backend software products
• Expert‑level skills in modern programming languages and some level of comfort with multiple development platforms
• Eagerness to learn, grow, and take on new challenges
• Track record of approaching problems from a system‑level perspective (e.g. thinking about how backend, frontend, and data work together as a whole)
• Excellent verbal and written communication skills across a range of audiences

Bonus points if you have

• Track record of identifying and removing team roadblocks before they block the team
• Experience providing technical leadership across multiple teams working on diverse objectives
• Experience in backend and frontend development with an understanding of what it takes to build generic, cross‑platform libraries

Benefits & Perks

• Quizlet is an equal opportunity employer. We celebrate diversity and are committed to creating an inclusive environment for all employees. Salary transparency helps to mitigate unfair hiring practices when it comes to discrimination and pay gaps. Total compensation for this role is market competitive, depending on location and experience, as well as company stock options
• Collaborate with your manager and team to create a healthy work‑life balance
• We offer 25 days of annual leave (and we expect you to take them!)
• Competitive health, dental, and vision insurance (100% employee and 75% dependent)
• Pension with employer contribution provided through Aviva
• Professional Development stipend (teach yourself something new)
• Paid Family, Medical and Caregiver leave, and Wellness benefits
• Employees are eligible to participate in the Quizlet stock option program
• 40 hours of annual paid time off to participate in volunteer programs of choice

Why Join Quizlet

Massive reach: 60M+ users, 1B+ interactions per week

Cutting‑edge tech: Generative AI, adaptive learning, cognitive science

Strong momentum: Top‑tier investors, sustainable business, real traction

Mission‑first: Work that makes a difference in people’s lives

Inclusive culture: Committed to equity, diversity, and belonging

In Closing

At Quizlet, we’re excited about passionate people joining our team—even if you don’t check every box on the requirements list. We value unique perspectives and believe everyone has something meaningful to contribute. Our culture is all about taking initiative, learning through challenges, and striving for high‑quality work while staying curious and open to new ideas. We believe in honest, respectful communication, thoughtful collaboration, and creating a supportive space where everyone can grow and succeed together.

Quizlet’s success as an online learning community depends on a strong commitment to diversity, equity, and inclusion.

As an equal opportunity employer and a tech company committed to societal change, we welcome applicants from all backgrounds. Women, people of color, members of the LGBTQ+ community, individuals with disabilities, and veterans are strongly encouraged to apply. Come join us!

Please review our UK Applicant Privacy Notice here to learn more about Quizlet’s data practices and your rights with respect to your personal data as a job applicant.

To All Recruiters and Placement Agencies:

At this time Quizlet does not accept unsolicited agency CVs and/or profiles. Please do not forward unsolicited agency CVs to our website or to any Quizlet employee. Quizlet will not pay fees to any third‑party agency or firm nor will it be responsible for any agency fees associated with unsolicited CVs. All unsolicited CVs received will be considered the property of Quizlet.