Senior Back-end Engineer

Preply; London; On-site; GBP 45,000 - 65,000; Full time

Job summary

Preply seeks a motivated Backend Engineer to enhance learning experiences. You will work within a collaborative team to develop features using Python/Django and contribute to product optimization. Join Preply to leverage your skills in a culture that values diversity and innovation while impacting learners worldwide.

Benefits

Generous monthly allowance for lessons.

Learning & Development budget.

Access to free mental health support.

Competitive financial package.

Qualifications

• Experience as a Backend or Full-Stack Engineer.
• Familiarity with architectural patterns of large web applications.
• Minimum B2 level English.

Responsibilities

• Develop and own backend features using Python/Django.
• Define solutions based on customer needs.
• Support creation of new backend services and troubleshoot integrations.

Skills

Python

Django

JavaScript

Problem Solving

Communication

Education

Bachelor's degree in Computer Science or related field

Job description

At Preply, we are unlocking human potential through learning.

We believe learning with a great tutor is life-changing. That’s why we match online tutors from across the globe with learners and empower them to create live language classes with AI-powered tools and learning materials. This is how we deliver progress, create engagement and keep our global community of learners motivated. So far, over 32,000 tutors have given more than 15 million lessons to learners from over 175 countries.

The Preply Engineering Team provides the tools to help unlock human potential through learning.

We work primarily with Python/Django to build scalable and robust applications. We implement A/B tests to prove the value of our initiatives and improve our product based on data and students and tutors feedback. As part of our commitment to ensuring high-quality products, we prioritize monitoring and metrics analysis to identify areas for optimization and ensure our services are performing at their best. Our team is made up of talented engineers who are passionate about solving complex problems and developing innovative solutions to drive our company's success.

At Preply, we release our product 50-60 times per day by leveraging top-notch CI/CD processes. As a fast-growing company we have diverse technical challenges (sometimes we even write about them on our Engineering Blog) that will allow you to develop your skills at scale.

What you’ll be doing:

You will work in a cross-functional team alongside the Product Manager, Product Designer, UX Writers, Data Analytics, Technical Leads, Engineers and other cross-functional team members to deliver engaging features through A/B tests and build top-notch products, including, but not limited to:

• Develop and own backend features using Python/Django;
• Think beyond the code and about our customers, understand their needs and define solutions with the team;
• Balance short-term speed of development with the long-term technical quality of our systems;
• Help us make our best practices even better (test culture, code reviews, monitoring and scalability of our tools);
• Supporting the creation of new backend services as well as design, create, and/or troubleshoot integrations with third-party vendors.

What you need to succeed:

• Proficiency in Python, having experience as a Backend or Full-Stack Engineer;
• Exposure to architectural patterns of a large, high-scale web application (e.g., well-designed APIs, high-volume data pipelines, efficient algorithms);
• Familiar and willing to support small JS/TS tasks when needed;
• Expertise in troubleshooting issues, identifying the root cause, mitigating it, and adding setting up safeguards to prevent future issues;
• High level of self-organization, ownership, and responsibility;
• A great collaborator with excellent verbal and written communication skills. Minimum B2 English level;
• Willingness to be on-call for your squad (1 week every 5 weeks).

Why you’ll love it at Preply:

• Open, collaborative, dynamic and diverse culture.
• Generous monthly allowance for lessons on .
• Learning & Development budget, including time off for your self-development.
• Competitive financial package with equity and leave allowance.
• Access to free mental health support platforms.
  
• Opportunity to shape the lives of learners and tutors from over 175 countries through language learning and teaching.
• Care to change the world - We are passionate about our work and care deeply about its impact to be life changing.
• We do it for learners - For both Preply and tutors, learners are why we do what we do. Every day we focus on empowering tutors to deliver an exceptional learning experience.
• Keep perfecting - To create an outstanding customer experience, we focus on simplicity, smoothness, and enjoyment, continually perfecting it as every detail matters.
• Now is the time - In a fast-paced world, it matters how quickly we act. Now is the time to make great things happen.
• Disciplined execution - What makes us disciplined is the excellence in our execution. We set clear goals, focus on what matters, and utilize our resources efficiently.
• Dive deep - We leverage business acumen and curiosity to investigate disparities between numbers and stories, unlocking meaningful insights to guide our decisions.
• Growth mindset - We proactively seek growth opportunities and believe today's best performance becomes tomorrow's starting point. We humbly embrace feedback and learn from setbacks.
• Raise the bar - We raise our performance standards continuously, alongside each new hire and promotion. We build diverse and high-performing teams that can make a real difference.
• Challenge, disagree and commit - We value open and candid communication, even when we don’t fully agree. We speak our minds, challenge when necessary, and fully commit to decisions once made.
• One Preply - We prioritize collaboration, inclusion, and the success of our team over personal ambitions. Together, we support and celebrate each other's progress.

Diversity, Equity, and Inclusion

Preply is committed to creating a diverse and inclusive environment where people from all backgrounds can thrive. Different opinions and viewpoints are key ingredients in our success as a multicultural Ed-Tech company.

Preply will consider all applications for employment without regard to race, color, religion, gender identity or expression, sexual orientation, national origin, disability, age or veteran status. Together, we are The World Class.

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Created on 22/06/2025 by TN United Kingdom