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SOFTWARE ENGINEER (AGENTIC)

refinery89
Full-timesenior
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Job description

Software Engineer (Agentic) 📍 Full Remote · European Timezone · Professional English Required About the Role We're looking for a Software Engineer with an Agentic mindset — someone who doesn't just write code, but builds systems that think, act, and adapt. You'll work on a production AdTech platform with real business impact, and you'll increasingly work alongside AI agents and design agentic workflows as part of your daily engineering practice. This is not a ticket-execution role. We expect you to bring judgment, ask the hard questions, design thoughtfully, and genuinely care about the quality of what you ship — whether that code was written by you, assisted by AI, or executed autonomously by an agent you designed. Responsibilities • 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. Tech Stack Languages • PHP (required) · JavaScript / Node.js · Python • Rust (nice to have) Frameworks & Tools • Laravel · Pest · Tailwind CSS • AWS: Lambda, SAM Templates, S3, CloudFront • Terraform · Playwright · Robot Framework · Cypress • Grafana · k6 · Postman Agentic & AI Tooling • Claude (Anthropic) · Kiro • Experience building or working with LLM-powered agents, tool use, MCP integrations, or prompt engineering at an engineering level Platform & Collaboration • Bitbucket · Jira / Atlassian suite AdTech (nice to have) • Google Ad Manager (GAM) • Prebid.js · Prebid Server Methodologies & Principles • SDD (Spec-Driven Development) · TDD · BDD • SOLID · DDD · OWASP • CI/CD pipelines (Bitbucket Pipelines, GitLab CI, GitHub Actions) What We're Looking For • 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. The team is fully remote and multicultural. What We Offer • 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. If this sounds like you and you want to build something that matters, we'd love to hear from you. • Permanent • Full time • Remote