Senior Backend Engineer – AdTech

🕒 April 15

🏢🏡 London – Hybrid

⏰ Full Time

🟠 Senior

🔙 Backend Engineer

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Depop

WebsiteLinkedInAll Job Openings

201 - 500 employees

Depop is the community-powered circular fashion marketplace where anyone can buy, sell and discover desirable, affordable secondhand fashion. Together with its community of approximately 35 million registered users, Depop is on a mission to make fashion circular - encouraging more people to choose secondhand and extend the lives of their clothes, redefining fashion consumption.

📋 Description

• Partner with Product, Data Science, and Engineering teams to design and build scalable AdTech systems that support ad delivery, ranking, and measurement. • Develop and maintain backend services that operate at high scale and low latency, supporting real-time decision making. • Contribute to the design of event-driven systems and data pipelines that power experimentation and performance insights. • Own your services end-to-end, including development, deployment, monitoring, and incident response. • Write high-quality, maintainable code and contribute to improving engineering standards, performance, and reliability. • Participate in architecture discussions, helping evolve systems to support future product and business needs. • Collaborate with engineers across teams to tackle complex problems and deliver impactful features. • Support a culture of continuous improvement through code reviews, post-mortems, and knowledge sharing. • Mentor and support other engineers, contributing to the growth of the team.

🎯 Requirements

• Experience building and operating scalable backend systems, ideally in a consumer or marketplace environment. • Strong programming skills in Scala (or willingness to learn), Java, or similar backend languages. • Experience designing and working with distributed systems and event-driven architectures. • Familiarity with messaging systems such as Kafka or RabbitMQ. • Experience working with relational or non-relational databases (e.g. PostgreSQL, DynamoDB). • Experience with cloud infrastructure (AWS preferred) and modern DevOps practices (CI/CD). • Strong problem-solving skills and the ability to work independently while collaborating effectively with others. • Good communication skills and the ability to work cross-functionally with both technical and non-technical stakeholders. • Bonus Points: You have experience working in AdTech, recommendations, ranking, or experimentation platforms. • You’ve worked with high-throughput systems handling real-time data or decisioning. • Experience in eCommerce, marketplaces, or data-driven product environments. • Familiar with infrastructure-as-code tools such as Terraform.

🏖️ Benefits

• PMI and cash plan healthcare access with Bupa • Subsidised counselling and coaching with Self Space • Cycle to Work scheme with options from Evans or the Green Commute Initiative • Employee Assistance Programme (EAP) for 24/7 confidential support • Mental Health First Aiders across the business for support and signposting • 25 days annual leave with option to carry over up to 5 days • 1 company-wide day off per quarter • Impact hours: Up to 2 days additional paid leave per year for volunteering • Fully paid 4 week sabbatical after completion of 5 years of consecutive service with Depop, to give you a chance to recharge or do something you love. • MyMode hybrid-working model with Flex, Office Based, and Remote options *role dependant • All offices are dog-friendly • Ability to work abroad for 4 weeks per year in UK tax treaty countries • 18 weeks of paid parental leave for full-time regular employees • IVF leave, shared parental leave, and paid emergency parent/carer leave • Budgets for conferences, learning subscriptions, and more • Mentorship and programmes to upskill employees • Life Insurance (financial compensation of 3x your salary) • Pension matching up to 6% of qualifying earnings • Employees enjoy free shipping on their Depop sales within the UK. • Special milestones are celebrated with gifts and rewards!