Senior Software Engineer
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Responsibilities
• Architect for Consistency & Scale: You will design the backend systems for Identity (SSO/SCIM) and Billing. You will make high-stakes trade-offs between eventual consistency and strict ACID transactions in a distributed environment . • Architect for Consistency & Scale: • Own Data Integrity: You are the guardian of our revenue data. You ensure that our ledgers are immutable, our access controls are secure, and our systems are auditable. You design for failure, ensuring no transaction is ever lost. • Own Data Integrity: • Decompose Complexity: You will take messy, ambiguous business requirements (e.g., "Allow mixed-license teams with varying expiration dates") and turn them into clean, maintainable backend architecture. • Decompose Complexity: • Drive Technical Excellence: You will mentor the team on best practices for C#/.NET Core, gRPC, and Event-Driven Architecture (Kafka). You set the standard for code reviews and system design. • Drive Technical Excellence: • C#/.NET Core • Event-Driven Architecture (Kafka) • Qualities we look for • A "Distributed Systems" Mindset: You understand the challenges of microservices, idempotency, and distributed locking. You know how to prevent race conditions in a billing system handling thousands of concurrent requests. • A "Distributed Systems" Mindset: • Domain Mastery (or Curiosity): You have experience with (or a deep desire to master) IAM (Identity Access Management), Fraud Prevention, or Fintech/Billing architectures. You understand that these are engineering problems, not just "admin tasks" . • Domain Mastery (or Curiosity): • Fraud Prevention • Fintech/Billing • High Agency: You proactively identify risks—whether it's a security vulnerability or a scaling bottleneck—and you fix them before they become incidents. • High Agency: • Pragmatic Architect: You don't over-engineer. You choose the boring, reliable solution (e.g., Postgres) over the shiny new tool, because you know stability is the most important feature of a financial system. • Pragmatic Architect: • AI-Native Velocity: You leverage AI-powered tools (like GitHub Copilot or Claude) to accelerate your velocity and eliminate repetitive toil. You use AI for boilerplate code, test generation, and debugging, allowing you to focus your cognitive energy on high-value architectural decisions and complex problem-solving. • AI-Native Velocity: • A Note on Our Hiring Process: DeepL hires for the Company, not just a specific team. We operate a Unified Engineering Pipeline. If you pass our bar, we will match you to the highest-priority role that fits your skillset—whether that is in Core Product, Platform, Voice, or Enterprise. We prioritize "Missionaries" who want to solve the biggest problems, wherever they live in the stack . • A Note on Our Hiring Process: • Company • Unified Engineering Pipeline
Benefits
• 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. • Diverse and internationally distributed team • 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. • Open communication, regular feedback • 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. • Hybrid work, flexible hours • 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. • Virtual Shares - • 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. • Regular in-person team events • 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. • Monthly full-day hacking sessions • 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. • 30 days of annual leave • 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!