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Open nowPosted 14 days ago

Senior Backend Engineer to Oplane

Arbetsförmedlingen (Platsbanken)39,552 open roles

Where
Malmö, Skåne län, Sweden
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Your applicationOpen nowSenior Backend Engineer to OplaneArbetsförmedlingen (Platsbanken) · Malmö, Skåne län, Sweden

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7.9% of postings close within 7 days. Measured by our own scanner across the market.

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  2. 3.4%3 days
  3. 7.9%7 days
  4. 14.2%14 days
  5. 34.1%30 days
This job: posted 14 days ago

The posting

The Story With AI tools accelerating how software is built, code is being shipped faster than ever before. This acceleration comes with a major catch, being architectural and security risks are accumulating just as fast. That’s where Oplane, a Malmö-based tech startup comes in. They are on a mission to make secure software the default for teams building at AI speed. Instead of patching things up afterwards, they embed security by design directly into the agentic workflow, running automated threat modeling and delivering real time, inline fixes straight into modern developer tools. A recent $5.2 million seed round led by Seed Capital and icebreaker vc, with backing from prominent tech investors from the Neo4j and Google ecosystems, is the direct driver behind expanding the engineering team right now. The Way They Build Agentic coding with Claude Code and Cursor is not a weekend experiment here, it is the core of how they ship software. The code is explicitly structured to optimize AI development, producing clear, modular architecture that both humans and AI agents can safely navigate and evolve. Your Mission & Impact As a Senior Backend Engineer, you will step in at a crucial early stage to design, build, and own the core infrastructure of the AI security platform. The job is to turn complex technical challenges into a scalable automated threat modeling engine, robust backend services, and Model Context Protocol (MCP) tools that power both the AI agents and the web application. What you will actually spend your days doing:

Core Engineering: Architect and scale robust backend services and asynchronous workflows primarily in Python.

AI Integration: Design and build MCP tools and internal agent facing functionalities to push the boundaries of agentic coding.

System Optimization: Continuously improve performance, security, and reliability across the entire backend stack.

Lead the AI Workflow: Work actively with Claude Code and Cursor as part of your daily routine. You will guide the AI to generate the first drafts, while you act as the main architect, reviewer, and owner of the production ready codebase.

Who You Are You are a backend craftsman who thrives in the dynamic environment of an early-stage startup, bringing the autonomy and technical ownership needed to build things from the ground up. What you bring to the table:

Deep Experience: A solid track record of 10+ years within software engineering, with a strong emphasis on backend systems and service oriented architectures.

System Design Mastery: A profound understanding of how to build maintainable, highly reliable, and clean APIs.

The AI First Mindset: Great enthusiasm for agentic development. You look forward to leveraging AI tools to write the first drafts, focusing your brainpower on reviewing, validating, and structuring the overarching architecture.

Clean Coding Practices: A habit of writing software that is highly explicit, modular, and easy for both human colleagues and AI agents to understand and expand upon.

Work Authorization: Full eligibility to work in Sweden.

Bonus points if you have experience with Python frameworks like FastAPI and async services, a background or strong interest in application security (threat modeling/pentesting), or experience with GraphQL and developing developer facing platform tools. The Setup The Team: You will join a sharp, technical team of founders and engineers who move fast, collaborate closely, and are deeply passionate about technology.

The Vibe: High bandwidth, real life collaboration is key here. This is a 100% onsite role at Oplane's office in central Malmö, where the team works closely to maximize execution and speed.

Ready to build the future of AI security? Apply right now, or reach out to us at Qlose if you want to know more about the team and the journey ahead.

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