Staff Software Engineer - Agentic First

Sonatype; Boston (MA); On-site; USD 180,000 - 240,000; Full time

Benefits offered by this job

Parental leave

Diversity and inclusion groups

Flexible working practices

Paid Volunteer Time Off

Job summary

Sonatype is seeking an agentic-first Staff Software Engineer to lead the design and delivery of enterprise-grade agentic capabilities within Nexus Repository Manager. You will set technical direction for a major product area, orchestrate fleets of agents across parallel workstreams, and mentor Senior engineers to deliver capabilities that secure software supply chains at scale.

You will address non-functional requirements (performance, reliability, security) and partner with Product, Security

Qualifications

• Long-running agent workflows are your default; you orchestrate fleets of agents.
• You design multi-agent systems and have shipped production work at scale.
• You define evals, test harnesses, observability, and review workflows.
• You lead internal rollouts and mentor engineers in agentic practices.
• You blend product decisions with engineering execution.
• You have strong Java and cloud experience.

Responsibilities

• Architect & Lead With Agents: drive the design of agentic-first subsystems across architecture, data models, and integrations.
• Own a Product Area: take initiatives from problem statements to rollout and long-term operability.
• Verification Over Generation, at Scale: focus on direction, reviews, and tastemaking rather than line-by-line coding.
• Define the Practice: set the bar for agentic engineering, tooling, and rituals.
• Architecture, Security & Reliability: own non-functional requirements including performance and security.
• Cross-functional Leadership: partner with Product, Security, UX, and Support to translate needs into concrete plans.

Job description

Sonatype is the software supply chain security company. We provide the world’s best end-to-end software supply chain security solution, combining the only proactive protection against malicious open source, the only enterprise grade SBOM management and the leading open source dependency management platform. This empowers enterprises to create and maintain secure, quality, and innovative software at scale.
As founders of Nexus Repository and stewards of Maven Central, the world’s largest repository of Java open-source software, we are software pioneers and our open source expertise is unmatched. We empower innovation with an unparalleled commitment to build faster, safer software and harness AI and data intelligence to mitigate risk, maximize efficiencies, and drive powerful software development.
More than 2,000 organizations, including 70% of the Fortune 100 and 15 million software developers, rely on Sonatype to optimize their software supply chains.
About The Role

About The Role

As an agentic-first Staff Software Engineer, you will lead the design and delivery of enterprise-grade, agentic-first capabilities within Nexus Repository Manager. You\'ll set technical direction for a major product area, orchestrate fleets of agents across parallel workstreams as your primary mode of work, and define the agentic engineering practices that other teams will learn from. You\'ll partner with Principal engineers on the hardest technical decisions and mentor Senior engineers to deliver capabilities that help enterprises secure their software supply chains at massive scale.

Why You Will Want to Apply

• Own the architecture of agentic-first features in a product used by 15 million developers and 70% of the Fortune 100.
• Practice a fundamentally new way of building software — long-running, multi-agent development — alongside Staff and Principal engineers who are defining the craft.
• Work on the hardest problems at the intersection of AI, distributed systems, and software supply chain security — a space where the industry playbook is still being written.
• Shape the technical roadmap for Nexus, set the engineering hiring bar, and mentor Senior engineers who will carry the craft forward.

What You Will Do

• Architect & Lead With Agents: Drive the technical design of major agentic-first subsystems — service architecture, data models, and agent/tool integrations — by running long-running, multi-agent workflows across decomposition, orchestration, implementation, testing, and review.
• Own a Product Area: Take major initiatives from ambiguous problem statements through technical design, multi-team execution, rollout, and long-term operability.
• Verification Over Generation, at Scale: Spend your time on direction, review, and taste rather than line-by-line coding. Define the evals, harnesses, guardrails, and review rituals that let your team confidently ship code no human typed.
• Define the Practice: Set the bar for how Sonatype engineers work with agents. Shape internal playbooks, tooling, and rituals; train Senior engineers in the craft; and raise the ceiling on what\'s possible.
• Architecture, Security & Reliability: Own non-functional requirements for your area — performance, reliability, and security — with particular attention to software supply chain threats (malicious packages, dependency confusion, provenance, SBOM accuracy).
• Cross-functional Leadership: Partner with Product, Security Research, UX, and Support leaders to translate ambiguous customer needs into concrete, shippable technical plans; conduct deep design reviews; and raise the quality bar through thoughtful mentorship.

Who You Are

• Long-running Agentic Developer: Multi-step, long-running agent workflows are your default way of building software — well beyond Copilot-style autocomplete. You routinely orchestrate fleets of agents in parallel across planning, coding, testing, and review, and your own time is spent on direction, verification, and taste rather than generation.
• Multi-agent Orchestration at Depth: Hands-on experience designing, running, and scaling multi-agent systems (e.g., Claude Code, Codex, Cursor background agents, custom orchestrators, LangGraph-style graphs) — including MCP tooling, shared context and memory, agent handoffs, and robust eval harnesses. You\'ve shipped production work this way and have strong opinions on what holds up at scale.
• Verification-first Mindset: You\'ve internalized that the new leverage point is human judgment over machine generation. You define the evals, test harnesses, observability, and review workflows that let a team confidently ship code no one personally typed.
• Shapes Leading-edge Practice: You don\'t just adopt agentic workflows — you define them. You\'ve led internal rollouts, published, open-sourced, or otherwise pushed the state of the art on how engineers work alongside agents, and have a clear point of view on where the craft is heading.
• Product Engineering Mindset: Half product, half engineering. You make product decisions independently and drive scope, trade-offs, and sequencing without constant PM hand-holding.
• Focused on What Matters: You want to build mission-critical products that drive revenue and transform how customers build software.
• Staff-level Engineering Skills: 7+ years of professional software development, with a track record of leading multi-quarter technical initiatives that span multiple teams or services.
• Deep Technical Foundation: Strong experience with Java, Cloud (AWS / Azure / GCP), and large-scale distributed systems — including performance tuning, data-intensive services, and production operability at scale.
• DevSecOps & Supply Chain Depth: Working knowledge of software supply chain security — SBOM formats (CycloneDX, SPDX), SCA, SLSA provenance, Sigstore/cosign signing, vulnerability analysis (OSV, NVD), and common attack patterns against package ecosystems.
• Deeply Curious: You push agentic tools to their limits — probing where they work, where they break, and how to make them better. You\'re energized by being early in a fundamentally new way of building software.

What We Are Proud Of

• 2025 Visionary in Gartner® Magic Quadrant™ for Application Security Testing!
• 2025 AI Compliance Solution of the Year - AI Breakthrough Awards
• 2025 DEVIES Award to our SBOM Manager for a new product for its innovation and impact in developer technology
• 2024 Industry Leader in Forrester-Wave for Software Composition Analysis (2024 Q4 report)
• Constellation AST Shortlist: Sonatype has been listed on the Constellation ShortList™ for Application Security Testing for 2024
• Data Breakthrough Awards: Sonatype was announced as a 2024 winner in the "Open Source Data Solution of the Year."
• SD Times: Best in Show Security
• Fast Company Best Workplaces for Innovators 2024
• The Herd Top 100 Private Software Companies 2024.
• Diversity & Inclusion Working Groups
• Parental Leave Policy
• Paid Volunteer Time Off (VTO)

At Sonatype, we value diversity and inclusivity. We offer perks such as parental leave, diversity and inclusion working groups, and flexible working practices to allow our employees to show up as their whole selves. We are an equal-opportunity employer, and we do not discriminate on the basis of race, religion, color, national origin, gender, sexual orientation, age, marital status, veteran status, or disability status. If you have a disability or special need that requires accommodation, please do not hesitate to let us know.
We may use artificial intelligence (AI) tools to support parts of the hiring process, such as reviewing applications, analyzing resumes, or assessing responses and identifying potential inconsistencies or verification signals in application materials based on available information. These tools assist our recruitment team but do not replace human judgment. Final hiring decisions are ultimately made by humans. If you would like more information about how your data is processed, please contact us.