Agentic Backend Engineer (Golang)

Job Details

• Job Title: Agentic Backend Engineer (Golang)
• Location: Preferably in / nearViennaor within a2h time zone difference
• Languages: English (fluent) and any other european language is a plus
• Experience: Over 5 years of experience in backend development using Golang and other OOP languages you will contribute to our SaaS platform managing the full software lifecycle
• Contract: No freelancing full time

Who We Are

Millions of people interact with fiskaly every day even if they dont 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

In this role you arent just a Senior Dev. You are an Agentic Architect. You will design the frameworks that allow AI agents to write test and deploy our microservices.

The 90/10 Rule: We want you to spend 90% of your time designing the agents the prompts the feedback loops and the system architecture. You should only be hands-on-keyboard for the final 10% the precision tuning the complex edge cases and the creative perfection that AI cannot reach.

What Youll Do

• Agentic Orchestration: Design and implement multi-agent workflows (using frameworks like LangChain LangGraph or custom Go-based orchestrators) to automate the full software development lifecycle.
• Build the Machine: Create autonomous systems that take high-level requirements and output production-ready strictly-typed Golang microservices.
• Architect for Autonomy: Design system boundaries and APIs specifically so they are agent-friendly ensuring LLMs can navigate understand and extend our codebase without hallucinations.
• Reliability Engineering: Implement robust verification loops. You will build the Judge agents that audit the Coder agents to ensure our fiscal signatures remain tamper-proof and legally compliant.
• Human-in-the-Loop Design: Define the touchpoints where human expertise is most impactful ensuring our transition to agentic engineering is seamless and safe.

What You Bring

• The Force-Multiplier Mindset: You find writing boilerplate physically painful. You have a proven track record of using AI to do the work of five engineers.
• Golang Mastery (5 Years): You know Go well enough to know exactly when an agent has produced hallucinated garbage vs. idiomatic excellence.
• Systems Thinking: Deep experience in distributed systems Kubernetes and Cloud-Native DNA. You understand how to wrap agents around complex infra.
• Agentic Experience: You have experimented with or deployed multi-agent setups. You understand the difference between a simple prompt and a recursive autonomous loop.
• Obsession with Perfection: Since you only write 10% of the code that 10% must be flawless. You are a master of the final polish.

What We Offer

• 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

Required Experience:

Unclear Seniority