Staff Backend Engineer (Golang)

Job Details

• Job Title: Staff Backend Engineer (Golang)
• Location: Preferably in / near Vienna, or within a 2h time zone difference
• Languages: German (fluent) & English
• Experience: 8+ years (Strategic / System Level)
• Contract: No freelancing, full time

Who We Are

Millions of people interact with fiskaly every day, even if they don’t realize it. As a B2B company, we power the retail technology behind digital receipts and secure, legally compliant transactions.

By making receipts tamper-proof through digital signatures, we help fight tax fraud. And with our paperless receipt solution, we offer consumers a modern alternative while helping merchants streamline their operations.

Sure, our solutions sound complex but our mission is simple: make receipts easy for everyone .

The Role

You are the Technical Architect and Force Multiplier for our Backend chapter. While you will still write code (especially on the critical path), your primary focus is Architecture and Leverage . You will look across multiple squads to identify patterns, remove bottlenecks, and design the distributed systems that underpin our entire platform.

You will also be a pioneer in our “AI-Enabled” strategy. You won’t just use Copilot; you will define the patterns and workflows for how our 50+ engineers leverage AI to build better software, faster.

️ What You’ll Do

• Drive the technical vision and architectural strategy for our backend services, writing and reviewing RFCs (Request for Comments) for major system changes
• Design complex, high-scale distributed systems using Golang, ensuring they are resilient, consistent, and observable by default
• Act as a “Force Multiplier” by building shared libraries, internal tools, and frameworks that make every other developer at fiskaly faster and safer
• Mentor Senior Engineers, helping them grow from “Service Owners” to “System Thinkers”
• Evaluate and implement new technologies (including AI coding agents and architectural analysis tools) to keep our tech stack modern and efficient
• Solve the hardest technical problems in the company—the ones that span multiple teams, involve complex race conditions, or require deep optimization of the Go runtime or database locks
• Bridge the gap between Product Strategy and Engineering Reality, helping leadership understand technical trade-offs and risk

✨ What You Bring

• Deep, battle-tested experience (8+ years) in Backend Engineering with a focus on System Architecture, and with previous Golang experience being a strong plus
• A track record of “Technical Leadership without Authority”—you can convince (not convince but excite or foster decisions) other smart engineers to follow your architectural advice through writing and persuasion, not just rank
• Experience designing systems that handle high throughput and high availability
• A pragmatic approach to AI: You understand how to use LLMs to simulate architectural stress tests, generate documentation from code, or automate migration scripts
• Experience with Event-Driven Architectures (Kafka/RabbitMQ) and knowing the pitfalls of eventual consistency
• A history of improving “Developer Experience”—you hate bad tooling and fix it for everyone
• Excellent writing skills (English C1+). At the Staff level, your ability to write clear design docs is as important as your code.
• We are a SaaS company, so is a plus if you have experience with GCP/AWS/Azure or similar

What We Offer

• Influence: You will sit at the table where technical strategy is decided.
• A culture that encourages you to use the latest tech. If an AI tool helps you code 20% faster, we want you to use it
• A supportive environment where you can try new things, fail safely, and learn constantly
• Flexible working hours and a hybrid work arrangement (Office in Vienna/Berlin/Madrid/Milan or Remote)
• Work permit sponsorship for qualified candidates
• A dedicated budget for personal and professional development and regular 1:1 career planning
• Company hardware of your choice (Windows, Linux, or Mac)
• A vibrant, inclusive company culture that values your well-being and personal growth

Why fiskaly

Joining fiskaly means contributing to a mission-driven company that is redefining how compliance is done in Europe and beyond. Here, you’ll grow, innovate, and make a real impact on the finance operations of a scaling SaaS company.