Senior Software Engineer, Agentic

🕒 July 23

🇪🇺 Europe – Remote

⏰ Full Time

🟠 Senior

🧑‍💻 Full-stack Engineer

👻 Ghost score 25%

What it means: how likely this posting is sitting open without active hiring.How to read it: 60% or higher means we think this is a ghost. Lower scores are less of a worry.How we score it: age, reposts, open roles vs team size, how fast jobs close, and whether pay is listed.Fine print: an estimate from public data, not a judgment of the company. Real jobs can score high, so treat it as a hint, not a fact.

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Refinery89

WebsiteLinkedInAll Job Openings

51 - 200 employees

Founded 2018

📣 Marketing

☁️ SaaS

Marketing • Advertising • SaaS

Refinery89 is a company that specializes in ad tech solutions, focusing on monetizing ads for publishers to maximize their revenue. They offer a variety of services including interest-driven targeting, programmatic demand access, and detailed ad performance insights. Refinery89 positions itself as a reliable partner for digital monetization, assisting clients with personalized service and cutting-edge technology.

📋 Description

• Design, develop, and maintain robust, scalable backend services following Domain-Driven Design (DDD) principles • Take full technical ownership of features — from design through deployment and monitoring • Build and orchestrate agentic workflows : autonomous pipelines where AI models (Claude, LLMs) take actions, call tools, and solve tasks with minimal human intervention • Actively participate in architecture decisions with strong analytical thinking and technical depth • Ensure code quality through SDD, TDD, and BDD methodologies, with sharp attention to detail • Collaborate on code reviews, refinements, and technical planning • Proactively identify and address technical debt, performance bottlenecks, and security risks (OWASP, SOLID) • Build and maintain CI/CD pipelines across Bitbucket, GitLab, or GitHub • Produce well-reasoned technical designs before writing the first line of code

🎯 Requirements

• 5+ years of experience in backend or full-stack software development • Practical experience with agentic AI systems — building agents, designing tool use, working with LLM APIs, or automating complex workflows with AI • Strong technical analysis and design skills : you can break down complex problems, propose well-reasoned solutions, and think through the implications of architectural decisions • Critical thinking : you don't execute blindly. You question, challenge, and improve — including the outputs of AI tools • Attention to detail : the code you ship is clean, tested, and documented. You apply the same standard to AI-generated code • True ownership : you're accountable for what you build — in production, over time • Autonomy : you know how to move forward without hand-holding, and when to raise a flag • Proactive attitude : you surface improvements, catch problems before they become incidents, and share knowledge freely • Eagerness to learn : the agentic era is moving fast, and you're moving with it • Fluent professional English , written and spoken

🏖️ Benefits

• Full remote — work from anywhere within the European timezone (CET ±2h) • Small, technical team with minimal overhead • Direct impact: your decisions ship to production • A culture of honest feedback and continuous improvement • Modern tooling — including cutting-edge AI — and freedom to propose new approaches • A front-row seat to the agentic engineering shift, not just as a user but as a builder