Senior Full Stack Engineer | Voice

Role:
Senior Full Stack Engineer | Voice

Location:

Cologne, North Rhine-Westphalia, Germany

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.

The Voice team, founded just two years ago, is a dynamic track bringing together multiple teams across Research, Product Engineering, and Design. We’re defining the art of the possible for real‑time voice interpretation and have successfully launched our first customer‑facing features in late 2024. We are scaling up with applications designed for major meeting platforms, real‑time communication channels, and a powerful Public API.

• Design and build full‑stack features:
  Own end‑to‑end problems, collaborating closely with product managers, designers, and other engineers to ship scalable, user‑facing features with real impact.
• Maintain and improve systems:
  Take shared ownership of our existing systems, ensuring they stay performant, maintainable, and reliable as we grow.
• Ensure code quality and clarity:
  Participate in thoughtful code reviews, contribute to architectural decisions, and help raise the bar for engineering excellence across the team.
• Collaborate cross‑functionally:
  Work closely with teammates across disciplines to ensure we’re solving the right problems and delivering real value to users.
• Adapt and grow:
  Stay curious and keep up with evolving tools and technologies—learning quickly and applying new skills when needed.
• Participate in our on‑call rotation:
  Ensure the reliability and availability of our services by being available to join the team's shared on‑call rotation as needed.

• Strong product engineering mindset:
  Care deeply about solving real user problems and balance pragmatism with technical rigor when designing systems.
• Full‑stack fluency:
  Comfortable working across the stack, even if strengths lean more towards backend or frontend. Have solid foundations in system design and understand how to ship production systems.
• Engineering foundations:
  Strong software engineering skills—clean abstractions, robust data modeling, sound architectural decisions—and know how to make things scale.
• Collaborative communicator:
  Clear communicator, active listener, and team player. Thrive in a collaborative environment and welcome feedback.
• Growth‑oriented:
  Eager to learn, open to new challenges, and not afraid to work with unfamiliar languages or tools when the problem demands it.

• Diverse and internationally distributed team:
  Join a global community with over 90 nationalities and a shared mission to connect diverse cultures.
• Open communication, regular feedback:
  Value clear, honest communication, smooth collaboration, and direct, actionable feedback.
• Hybrid work, flexible hours:
  Hybrid work schedule with office twice a week, flexible hours, and trust in productivity.
• Monthly full‑day hacking sessions:
  Hack Fridays give you time to work on projects you’re passionate about, collaborating with other teams.
• 30 days of annual leave plus public holidays and access to mental health resources.
• Virtual Shares:
  Ownership mindset—every employee receives Virtual Shares linking contribution directly to DeepL’s growth.
• Competitive benefits:
  Tailored to reflect the diversity of our team and aligned with your unique location.

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! Bring us your personal experience, perspectives, and background. It’s in our diversity that we will find the power to break down language barriers in the world.

If this role and our mission resonate with you, but you don't check all the boxes, we encourage you to apply—we value the value you bring and the growth we can foster together.