Senior Backend Software Engineer | Convert & Scale in London

Meet DeepL. DeepL is a global communications platform powered by Language AI. Since 2017, we have been on a mission to break down language barriers. Our human-sounding translations and intelligent writing suggestions are designed with enterprise security in mind. Today, they enable over 100,000 businesses to transform communications, reach new markets, and improve productivity. Our goal is to become the global leader in Language AI, building products that drive better communication, foster connections, and make a real-life impact. To achieve this, we need talented individuals like you to join our exciting journey.

What sets us apart is our blend of modern technology, competitive benefits, and an open, welcoming work culture that enables our people to thrive. When we share what it’s like to work at DeepL, the reactions are overwhelmingly positive. This may be because of our products that have helped countless people worldwide or our shared mission to improve communication for individuals and businesses, bringing cultures closer together. What we know for sure is this: being part of DeepL means joining a team dedicated to innovation and employee well-being.

You will be working as part of the Convert & Scale Track (CAST) in DeepL's engineering department, specifically in the fields of Subscription Management and Sales Automation. CAST's mission is to accelerate DeepL's growth by maximising the number of people that buy DeepL products and by enabling our customers to scale to any size. We are 50 people working on diverse topics ranging from identity and subscription management to customer onboarding and expansion. Currently, we are looking to strengthen our team in the area of subscription management, with the goal of improving our sales-assisted customer acquisition and expansion flows through automation.

Your responsibilities:

• Design, implement and maintain features in our microservices in a hybrid cloud environment.
• Contribute to the implementation of end-to-end solutions: design, build and deliver in collaboration with multiple engineering teams.
• Increase the maintainability, reliability, and robustness of our software.
• Continuously improve and automate our development processes.
• Contribute to our backend developer community and share knowledge within and across teams.
• Take total ownership of the work you deliver, from testing and QA to post-deployment monitoring and incident resolution.
• Participate in our on-call rotation: You’ll ensure the reliability and availability of our services by being available to join the team’s shared on-call rotation as needed.

Qualities we look for:

• Proficiency in a modern programming language with solid experience in backend development.
• Exposure to or familiarity with our tech stack (C#, .NET Core, PostgreSQL, Grafana, Kubernetes, Kafka) or similar technologies would be beneficial but is not a strict requirement.
• Experience in building, scaling, and maintaining business-critical applications.
• Solid understanding of algorithmic complexity and common data structures.
• Effective and pragmatic; you can weigh between 'perfect' and 'good enough' depending on priorities and business impact.
• The ability to explain complex ideas and designs to developers and stakeholders with a wide variety of experience and backgrounds.
• Capacity to balance short-term deliverables with long-term product vision, ensuring product evolution aligns with user and business goals.
• Understanding of observability, metrics, and managing an application throughout its entire lifecycle.
• A user-centric mindset: deep user empathy, ownership of user data, and eagerness to make a direct impact on the user experience at DeepL.
• A continuous learning mindset—openness to trying different approaches and adapting to new technologies.
• Fluent in English.
• Comfortable with a hybrid working model and able to come into any of our offices regularly (2x per week average).

What we offer:

• Diverse and internationally distributed team: joining our team means becoming part of a large, global community with people of more than 90 nationalities.
• Open communication, regular feedback: as a language-focused company, we value the importance of clear, honest communication.
• Hybrid work, flexible hours: we offer a hybrid work schedule, with team members coming into the office twice a week.
• Regular in-person team events: we bond over vibrant events that are as unique as our team.
• Monthly full-day hacking sessions: every month, we have Hack Fridays, where you can spend your time diving into a project you’re passionate about.
• 30 days of annual leave: we value your peace of mind.
• Competitive benefits: we’ve crafted our benefits package to reflect the diversity of our team.

If this role and our mission resonate with you, but you’re hesitant because you don’t check all the boxes, don’t let that hold you back. At DeepL, it’s all about the value you bring and the growth we can foster together. Go ahead, apply—let’s discover your potential together. We can’t wait to meet you!

We are an equal opportunity employer. You are welcome at DeepL for who you are—we appreciate authenticity here. Our product is for everyone, and so is our workplace.