Senior Software Engineer | API Enterprise | Full-Stack

Senior Software Engineer | API Enterprise | Full-Stack

Full-Time 63000 - 77000 £ / year (est.) Home office (partial)
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At a Glance

  • Tasks: Drive enterprise API adoption and design governance controls for large organisations.
  • Company: Join DeepL, a leading AI product company transforming global communication.
  • Benefits: Enjoy hybrid work, flexible hours, 30 days annual leave, and virtual shares.
  • Other info: Participate in monthly hack sessions and regular team events to foster creativity.
  • Why this job: Shape the future of AI while working on impactful projects with a diverse team.
  • Qualifications: Expertise in C#/.NET, strong API design skills, and a collaborative mindset.

The predicted salary is between 63000 - 77000 £ per year.

Meet DeepL. DeepL is a global AI product and research company focused on building secure, intelligent solutions to complex business problems. Over 200,000 business customers and millions of individuals across 228 global markets today trust DeepL's Language AI platform for human-like translation, improved writing, and real-time voice translation. Founded in 2017 by CEO Jaroslaw “Jarek” Kutylowski, DeepL now has around 1,000 passionate employees and is supported by world-renowned investors including Benchmark, IVP, and Index Ventures. Our goal is to become the global leader in trusted, intelligent AI technology, building products that drive better communication, foster connections, and create a meaningful impact.

To achieve this, we need talented people like you to join our journey. If you’re ready to shape the future of AI and grow your career in a fast-moving, purpose-driven environment, DeepL is your next destination. What sets us apart is our blend of cutting-edge AI technology, meaningful work, and a culture where people truly thrive. We’re a team of innovators, researchers, and creators driven by a shared purpose to unlock human potential by making work simpler, smarter, and more connected.

When we share what it’s like to work at DeepL, the reactions are overwhelmingly positive. This might be because of our technology that helps millions of people and businesses communicate and work better every day, or because of the trust, curiosity, and care that shape our culture. What we know for sure is this: being part of DeepL means joining a team dedicated to innovation, growth, and well-being.

Discover more about life at DeepL on LinkedIn, Instagram, and our Blog.

DeepL is not just a translation tool; we are building the Operating System for Global Communication. We are the rare AI company that builds the entire stack in-house: from training next-gen LLMs on our own NVIDIA DGX SuperPODs to delivering real-time Language AI to over 300 million users and 200,000+ businesses globally. You will join the API Enterprise team. We sit at the intersection of DeepL's API platform and our Enterprise ecosystem. Whereas the Core team obsesses over the self-service developer journey, our focus is on enterprise customer adoption: the usage insights, cost controls, RBAC, compliance, and data residency capabilities that enterprise IT and security teams depend on. We work hand-in-hand with a wide set of stakeholder teams to make DeepL's API the obvious and safe choice for global enterprises.

Your responsibilities:

  • Drive Enterprise API Adoption: You will own the features that turn enterprise interest into deep, durable adoption. Examples include usage insights, cost and consumption controls, and the governance tooling that lets large organizations understand and manage how they use DeepL's APIs.
  • Build for Governance & Compliance: You will design the controls enterprise IT and security admins rely on (roles and permissions, projects, data residency, and audit-ability), making DeepL the compliant default for regulated, global organizations.
  • Guardianship of Quality & Production Reliability: You will own your services end-to-end, including participation in the API on-call rotation, with a shared goal of taking our public API to four nines of reliability. You will implement strong contract testing, monitoring, and SLOs, preventing breaking changes and security vulnerabilities before they reach our enterprise customers.
  • Architect Across the Enterprise Ecosystem: You will work deep within DeepL's existing technical and organizational structures, navigating dependencies across different areas and many stakeholder teams to ship cohesive, reliable enterprise capabilities.

Qualities we look for:

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Senior Software Engineer | API Enterprise | Full-Stack employer: Deepl-Se

DeepL is an exceptional employer that fosters a vibrant and inclusive work culture, where innovation and collaboration thrive. With a diverse team of over 1,000 passionate individuals from more than 90 nationalities, employees benefit from flexible hybrid working arrangements, competitive benefits tailored to their locations, and opportunities for personal and professional growth through initiatives like monthly Hack Fridays. Joining DeepL means being part of a mission-driven company that values clear communication, employee well-being, and the chance to make a meaningful impact in the world of AI technology.

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Contact Details:

Deepl-Se Recruitment Team

StudySmarter Expert Advice🤫

We think this is how you could land Senior Software Engineer | API Enterprise | Full-Stack

Join Local Tech Meetups

Get out there and mingle with fellow developers by joining local tech meetups. It’s a fantastic way to meet people who might be working at Deepl-Se or know someone who does. Plus, you can pick up some trendy tech skills and trends while you're at it!

Contribute to Open Source Projects

Show off your coding chops by jumping into open-source projects. Not only does this give you practical experience, but it also gets you noticed in the dev community. You'll create a killer portfolio that speaks volumes about your skills to Deepl-Se.

Tap into Online Developer Communities

Don’t underestimate the power of online developer communities like GitHub, Stack Overflow, and even Reddit. Participate in discussions, share your projects, and build your visibility. We can often find opportunities through these channels that can lead to a full-time gig at companies like Deepl-Se.

Explore Job Boards Specifically for Tech Roles

Keep your eyes peeled on job boards that focus on tech roles. Sites like TechCareers or Stack Overflow Jobs can often have listings for companies like Deepl-Se that might not show up on broader job sites. Make it a habit to check these regularly, and don’t hesitate to apply directly through our website!

We think you need these skills to ace Senior Software Engineer | API Enterprise | Full-Stack

C#
.NET
RESTful APIs
Distributed Architectures
API Design Fundamentals
Enterprise Platform Fluency
MCP

Some tips for your application 🫡

Show off your coding skills:When applying for a software engineering role, it's super important to showcase your coding skills. Make sure your CV includes your tech stack, any relevant programming languages you’re comfortable with, and examples of projects you've worked on. If you have a GitHub profile, link it up! We love to see code in action.

Tailor your portfolio:For a full-time role, we’d expect to see some solid examples of your work in your portfolio. Make sure to include at least two or three projects that highlight your problem-solving skills and your ability to work with different technologies. Focus on the projects that are most relevant to the position at Deepl-Se.

Craft a killer cover letter:Your cover letter is your chance to stand out—make it personal! Explain why you want to work at Deepl-Se and how your skills align with the role. Show us your passion for software development. We dig enthusiastic candidates who understand the value of collaboration and continuous learning!

Be clear and concise:When it comes to writing your CV and cover letter, clarity is key. Avoid jargon that could confuse us and stick to simple, direct language. Highlight your achievements with quantifiable results where possible, and keep everything easy to read. A well-organised application goes a long way!

How to prepare for a job interview at Deepl-Se

Brush Up on Your Coding Skills

For a full-time software engineering role, it's crucial that we stay sharp with our coding abilities. Expect technical questions that might involve solving problems on the spot or discussing algorithms. Practise on platforms like LeetCode or HackerRank to get comfortable with the types of questions that often come up.

Know Your Tools and Frameworks

Make sure we’re well-acquainted with the tools and technologies listed in the job description. Familiarise ourselves with any specific frameworks or programming languages mentioned. If Deepl-Se uses React or Node.js, for instance, be ready to discuss how we’ve used them in previous projects or coursework.

Showcase Your Projects

Bring along a portfolio that highlights our best work. This could be code samples, GitHub repositories, or any side projects we’ve built. Make sure we can talk through our thought process for each project, especially the challenges we faced and how we solved them—this shows our problem-solving skills in action.

Prepare for Behavioural Questions

While technical skills are key, full-time positions also require cultural fit. Be ready to discuss our previous experiences and how we handle teamwork, conflict, and deadlines. Brush up on the STAR method—Situation, Task, Action, Result—to clearly articulate our past experiences when discussing how we've contributed to a team.