Senior Software Engineer - Agentic First

2 days, 15 hours ago
Full-time
Senior
Software Development
Sonatype

Sonatype

Sonatype provides secure software development solutions by leveraging open source and artificial intelligence, ensuring that organizations can build applications quickly and safely through automated governance, policy enforcement, and comprehensive mon...

Internet Software & Services
51-250
Founded 2008
$155M raised

Description

  • Design and implement scalable, high-performance features across the stack using long-running, multi-agent workflows.
  • Take features from ambiguous requirements through design, implementation, rollout, and on-call operability.
  • Direct, verify, and evaluate agent output rather than relying on line-by-line manual coding.
  • Build and maintain harnesses, guardrails, and test workflows that make agent-generated code trustworthy.
  • Contribute to internal playbooks, tooling, and engineering rituals for working with agents.
  • Write clean, well-tested, observable code with a strong focus on quality, security, and reliability.
  • Apply software supply chain security best practices to the work you deliver.
  • Partner with Product, UX, and other engineers to turn customer needs into shippable solutions.
  • Review code thoughtfully and mentor earlier-career engineers.
  • Help advance Sonatype’s agentic engineering practice by sharing learnings and experimentation.

Requirements

  • 4+ years of professional software development experience.
  • Meaningful experience shipping and operating production services.
  • Strong experience with Java.
  • Experience with at least one major cloud platform: AWS, Azure, or GCP.
  • Comfort working in distributed systems, including APIs, databases, queues, and related failure modes.
  • Hands-on experience running and composing multiple agents such as Claude Code, Codex, Cursor background agents, or equivalents.
  • Experience using MCP tools, custom prompts or skills, shared context, and eval loops.
  • Ability to write and maintain evals, test harnesses, and review workflows.
  • Familiarity with DevSecOps and supply chain security concepts such as SBOMs, SCA, vulnerability management, dependency hygiene, and artifact/package ecosystems, or strong interest in developing that expertise.
  • Product engineering mindset focused on customer outcomes and trade-offs.
  • Experience collaborating with PM and design to make product decisions.
  • Curiosity about agentic tools and interest in exploring frontier development practices.

Benefits

  • Full-time remote work.
  • Parental leave policy.
  • Paid volunteer time off (VTO).
  • Diversity and inclusion working groups.
  • Flexible working practices.
  • Opportunity to work on high-impact products used by major enterprises and millions of developers.
  • Mentorship and growth toward a Staff-level trajectory.

Interested in this position?

Apply directly on the company website

Apply Now

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