Senior Staff Software Engineer | Voice
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 over 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
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 onLinkedIn,Instagram, and our Blog.
Meet the team behind this journey
Our journey is built on the foundation of DeepL, a name synonymous with world-class translation quality. The trust we have cultivated with millions of users and leading enterprise customers globally is a testament to our commitment to breaking down language barriers with precision and nuance. Leading our next chapter of innovation is the Voice team.
As a dynamic, fast-growing track, we bring together incredibly talented, cross-functional teams across Research, Product Engineering, and Design. Together, we are defining the art of the possible for real-time voice interpretation. Founded just two years ago, we achieved a massive milestone in late 2024 with the successful launch of our first customer-facing features. We are now scaling up aggressively, building out applications designed for major meeting platforms, real-time communication channels, and a powerful Public API to extend our functionality to a broader set of global applications.
Your Responsibilities
We are looking for a hands-on Senior Staff Engineer to act as a visionary technical leader for our Voice Track. You will drive the architecture and development of our real-time voice translation systems, taking true full-stack ownership from the client down to the backend, while acting as a force multiplier to raise the engineering bar across multiple teams. You will:
Own Full-Stack Architecture End-to-End: You will design, build, and seamlessly operate complex systems across the entire stack—spanning from the front-end user experience down to low-latency backend infrastructure and heavy audio pipelines.
Bridge AI Research and Production: You will interface heavily with our AI research teams, translating complex generative AI and machine learning models into robust, highly-available production environments.
Shape Product Strategy & Direction: You will act as a primary decision-maker, working cross-functionally with product managers, researchers, and designers to translate ambiguous customer problems into highly impactful technical solutions.
Scale the Voice Infrastructure: You will architect systems that meet the uncompromising, high standards of real-time translation: ultra-low latency, impeccable high uptime, and flawless ML integration.
Lead by Example (The "Player-Coach"): You will not lead from the ivory tower; you will stay deeply hands-on, actively contributing production code while guiding high-level architectural decisions and mentoring the team.
Mentor and Elevate: You will grow our organizational engineering maturity through dedicated technical coaching, thoughtful code reviews, and by driving strict best practices in observability, reliability, and scale.
Qualities we look for
This is a high-impact role for someone who combines deep system design expertise with a strong product mindset and a passion for guiding teams through hands-on leadership. We are looking for:
Distinguished Full-Stack Technical Leadership: You have a proven track record of leading the architecture and delivery of highly complex, track-level products. You own the full stack, rather than limiting your scope strictly to backend or infrastructure systems.
Deep Expertise in Streaming and Generative AI: You intimately understand the extreme technical nuances of audio streaming, low-latency real-time systems, and deploying generative AI pipelines at massive scale.
Hands-On Builder Mentality: You actively write code, prototype, and debug complex issues alongside your team. An unwillingness to be hands-on with the code is a strict dealbreaker for this role.
Product-First Obsession: You focus ruthlessly on user outcomes and customer value, not just theoretical technical purity. You make highly pragmatic engineering decisions with long-term maintainability and scale in mind.
Cross-Functional Influence & Mentorship: You have experience successfully leading large initiatives spanning multiple teams (3+ teams). You inherently raise others up through knowledge-sharing, exceptional communication, and a highly collaborative mindset.
AI-Native Developer: You embrace the potential of AI to transform software development. You actively use and advocate for AI tools to streamline workflows and are eager to guide the organization in adopting AI-assisted engineering practices.
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, 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, with team members coming into the office twice a 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.