
Alice is hiring a Senior Software Developer to lead the development of our internal malware research platform. This is a senior, hands-on role with end-to-end ownership of development and delivery. You'll be the technical authority — setting code-quality standards, making the architecture calls, and mentoring the developer team.
What makes this role different is who you build for. Our users are our malware researchers, and they use the tool every day. Your job is to sit beside them, learn how they actually work, surface the heuristics and edge cases they carry in their heads, and build agentic tooling that compounds their productivity. The bar isn't "does it ship" — it's "do the researchers reach for it every day." Success is measured in researcher adoption and time saved, not features merged.
Agentic workflows are core to how we build. You should be fluent using them and confident designing systems where agents run in production — with clear judgment about where an agent earns its keep versus where deterministic code or a human-in-the-loop is the right call.
What You'll Do
Lead development and delivery
Partner with the researchers — and amplify them
Be the technical authority and mentor
Must-have
• 5+ years of software development experience, with a track record of delivering products to production — not just prototypes or POCs.
• Strong Python, including async (asyncio), modern typing, and a disciplined testing approach (pytest).
• Hands-on Playwright experience in production — not one-off scripts.
• Production experience with agentic workflows: building, deploying, and operating LLM-powered systems that plan, call tools, and execute multi-step tasks — using a modern agent framework (e.g., LangGraph, the Anthropic Claude Agent SDK, the OpenAI Agents SDK, or DSPy).
• Experience building evaluations and guardrails to measure agent quality and catch regressions before they reach a user (e.g., MLflow GenAI evaluation & tracing, LangSmith, or Braintrust).
• Proven experience leading development efforts: estimation, task breakdown, code review, and mentoring.
• Experience building tools used internally by expert users (vs. external end-user products), or a clear instinct for the difference.
Nice to have
• Background in cybersecurity, malware research, threat intelligence, or an adjacent security domain.
• Experience with reverse-engineering tools, sandboxes, or malware-analysis pipelines.
• RAG and retrieval pipelines (indexing, reranking, grounding) and a vector store (e.g., pgvector).
• Cloud-native infrastructure (AWS, Kubernetes), containers (Docker), CI/CD (GitHub Actions), and observability stacks (OpenTelemetry, Grafana / Coralogix or equivalent).
Alice is a trust, safety, and security company built for the AI era. We safeguard the communicative technologies people use to create, collaborate, and interact—whether with each other or with machines.
In a world where AI has fundamentally changed the nature of risk, Alice provides end-to-end coverage across the entire AI lifecycle. We support frontier model labs, enterprises, and UGC platforms with a comprehensive suite of solutions: from model hardening evaluations and pre-deployment red-teaming to runtime guardrails and ongoing drift detection.

ActiveFence is the leading provider of AI security and safety solutions, protecting online experiences and AI applications for over 3 billion users, top foundation models, and the world’s largest enterprises and tech platforms.
As a trusted partner to major technology companies and Fortune 500 brands, we secure user-generated and GenAI products against prompt injection, adversarial attacks, and harmful content through Real-Time Guardrails, continuous Red Teaming, and the industry’s most advanced threat intelligence.
With unmatched detection capabilities in 117+ languages, ActiveFence empowers organizations to deliver engaging, safe, and trustworthy experiences globally, helping them innovate responsibly while staying ahead of emerging threats.