Senior Backend Software Engineer C# - API And Client Libraries

Meet DeepL

DeepL is a global communications platform powered by Language AI. Since 2017, we've 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. And, empower millions of individuals worldwide to make sense of the world and express their ideas.

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. If you're ready to work with a dynamic team and build your career in the fast-moving AI space, DeepL is your next destination.

What sets us apart

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. Discover what our teams have to say about life at DeepL on LinkedIn, Instagram and our Blog.

Meet the team behind this journey

Thanks to our unique neural networks, DeepL is able to deliver the world's best translation quality. Many thousands of users use our API to bring our translations into their applications, translating billions of characters per month. To make our AI easy to use, we provide open source libraries in a wide range of programming languages - to date we have released client libraries for Python, .NET, Node.js, PHP, and Java. You can find more on our GitHub: https://github.com/DeepLcom

You will contribute to our backend services (C#, ASP.NET Core), adding exciting new API features. You will also develop our client libraries and make sure that they deliver value to the developer community. You can expect to work in a highly experienced cross-functional team.

Your responsibilities

• Design, implement and maintain new features for the DeepL API on our backend services, collaborating with multiple engineering teams

• Develop and maintain open-source client libraries for the DeepL API in several programming languages

• Contribute to monitoring the API services in production, e.g. by defining expressive metrics and ensuring informative logs

Qualities we look for

• Strong proficiency in backend software development with C# and ASP.NET Core

• Experience with the design of Web APIs

• 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 with a wide variety of experience and backgrounds

• Fluent in English, knowledge of other languages is a plus

• Comfortable with a hybrid working model and able to come into our New York office regularly (3x per week). This is important to us in order to build a strong culture within our NY hub.

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. We're more than just colleagues; we're a group of professionals with a shared mission to connect diverse cultures. Our global presence is growing-we've doubled in size nearly every year, with our employees based in the UK, Germany, the Netherlands, Poland, the US, and Japan, and we continue to expand our network.

• Open communication, regular feedback: as a language-focused company, we value the importance of clear, honest communication. We value smooth collaboration, direct and actionable feedback, and believe that leading with empathy and growth mindset makes us better together.

• Hybrid work, flexible hours: we offer a hybrid work schedule, allowing to work several days in the office each week. This allows you to engage directly with your team and experience the unique energy of our workspace, while still enjoying the flexibility and comfort of working from home. With flexible working hours and trust in your productivity, we are in sync with your team's general locations and time zones to foster effective and seamless collaboration.

• Regular in-person team events: we bond over vibrant events that are as unique as our team, from local team and business unit gatherings, to new-joiner onboardings, to company-wide events that bring us all together-literally.

• 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 and get the opportunity to work with other teams-we value your initiatives, impact, and creativity.

• 30 days of annual leave: we value your peace of mind. With 30 days off (excluding public holidays) and access to mental health resources, we make sure you're as strong mentally as you are professionally.

• Competitive benefits: just as our team spans the globe, so does our benefits package. We've crafted it to reflect the diversity of our team and tailored it to align with your unique location, to ensure you feel supported every step of the way.

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. The more voices we have represented and amplified in our business, the more we will all succeed, contribute, and think forward! So bring us your personal experience, your perspectives, and your background. It's in our diversity that we will find the power to break down language barriers in the world.