Senior Staff Software Engineer | Enterprise

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. Building on a history of innovation, quality and security, DeepL continues to expand its offerings beyond the field of Language, including DeepL Agent - an autonomous AI assistant designed to transform the way businesses and knowledge workers get work done. Founded in 2017 by CEO 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 https://www.linkedin.com/company/deepl/,Instagram https://www.instagram.com/deepl_official/, and our Blog https://www.deepl.com/en/blog. MEET THE TEAM BEHIND THIS JOURNEY This is not a traditional Senior Staff Engineer role. This is a chance to step into a mission-critical domain at one of the world's fastest-growing AI companies and fundamentally redesign the rails that support our rapid growth. We are seeking a Senior Staff Engineer who views technical leadership as the creation of leverage and enterprise-grade trust at global scale. Your Mission: Architecting DeepL's Revenue Flywheel for Global Scale WHAT WILL YOU BE DOING AT DEEPL You will be a key architect driving the Convert & Scale track, which is the foundational business layer of DeepL used by all our product teams. Your work will directly enable our journey from serving individual users to managing relationships with the world's largest enterprises, involving thousands of users, complex licensing, and multi-layered access controls. Whether you’ve been part of a startup or have worn multiple hats, your entrepreneurial mindset will thrive here. We need someone who can rapidly assess complex business needs, design the simplest, most resilient architecture to meet them, and take full ownership of the outcome. YOUR RESPONSIBILITIES At DeepL, you will be building the architecture for the next decade of enterprise adoption. Your focus will be on solving novel problems unique to a high-growth, AI-first platform. - Deep Impact: You will be part of a small team of ultimate technical owners of our revenue generation platform. Your decisions will directly influence our global P&L and growth trajectory - The Enterprise Problem: We are tackling the immense complexity of scaling a global SaaS platform for AI. Convert & Scale builds tools and services for DeepL developers to help them implement identity, monetization, and overall enterprise readiness - Operating at AI-Native Speed: For our business systems to keep pace with our product innovation, we need technical leaders who can operate at AI-native speed. This requires thinking out of the box about AI coding tool integration, MCP, internal developer portals, and developer-friendly internal APIs that abstract away complexity and boost velocity across all engineering tracks QUALITIES WE LOOK FOR Your Strategic Mandate Based in either our London or Berlin office, you will act as a technical leader and problem solver for all business-critical revenue systems. - Enterprise System Design: You will design, build, and ship enterprise-grade product platforms with high standards for security, reliability, and scalability - Core Systems Ownership: You will define the architecture and own the implementation path for key systems, including the strategic decision-making around commissioning and decommissioning services. You will directly build scalable systems for user management and admin controls - Data Governance & Mastery: Assume ultimate ownership of revenue data management: data architecture, governance, protection, ensuring they are flawless and auditable for global operations - Technical Acceleration: Provide hands-on technical leadership on projects spanning 7+ cross-functional teams. You will mentor and challenge not just engineers, but also Engineering Managers and Product Leaders, setting the bar for technical excellence and predictable delivery WHAT DEFINES YOU You are a technical leader who thrives on complexity and ambiguity, with a demonstrable history of turning business challenges into robust, scalable technology - Proven Enterprise Scale: Background in SaaS platforms with high enterprise adoption is essential. You understand the security, compliance, and reliability demands of the world's largest companies - Decade of Impact: 10+ years of hands-on technical experience as an engineer, including significant experience in large-scale organizations where you drove architectural change, not just participated in it. - Domain Mastery (Expertise in one or more is highly valued): - Identity & Access Management (e.g., SAML, SSO, SCIM) - Monetization (e.g. complex subscription & billing architectures, payments processing, etc) - Fraud Prevention at scale - Administration tooling for enterprise oriented SaaS services - Architectural Fluency: Expertise in observability practices (SLOs, Alerting) for business-critical systems. Experience with Domain Driven Design (DDD) is a significant plus. - Current Stack Context (experience in these is a benefit, not a mandate): C#, gRPC, Kafka, Kubernetes, Postgres, Cassandra, Gatsby, Keycloak, Typescript This role is for an engineer who is ready to move beyond incremental feature development and take on the ultimate challenge of architecting the global business infrastructure for an AI leader. 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 - Virtual Shares: An ownership mindset in every role. We believe everyone should share in our success, and that’s why every employee receives Virtual Shares, linking your contribution directly to DeepL’s growth and rewarding you with a stake in our future - 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.