At a Glance
- Tasks: Design and develop AI agent platforms for cutting-edge cybersecurity solutions.
- Company: Join Proofpoint, a leader in human-centric cybersecurity.
- Benefits: Competitive pay, flexible work, wellness days, and global networking.
- Other info: Collaborative culture that values diversity and empowers your career growth.
- Why this job: Make a real impact in autonomous security operations with innovative technology.
- Qualifications: Experience in cloud applications, AI agents, and strong Python skills.
The predicted salary is between 77850 - 95150 £ per year.
About Us: Proofpoint is a global leader in human- and agent-centric cybersecurity. We protect how people, data, and AI agents connect across email, cloud, and collaboration tools. Over 80 of the Fortune 100, 10,000 large enterprises, and millions of smaller organizations trust Proofpoint to stop threats, prevent data loss, and build resilience across their people and AI workflows. Our mission is simple: safeguard the digital world and empower people to work securely and confidently. Join us in our pursuit to defend data and protect people.
How We Work: At Proofpoint you’ll be part of a global team that breaks barriers to redefine cybersecurity guided by our BRAVE core values:
- Bold in how we dream and innovate
- Responsive to feedback, challenges and opportunities
- Accountable for results and best in class outcomes
- Visionary in future focused problem-solving
- Exceptional in execution and impact
The Role: Proofpoint is hiring a Staff Software Engineer on Satori, our enterprise AI agent platform driving the future of autonomous security operations. Satori delivers security outcomes by orchestrating capabilities across the entire Proofpoint product portfolio and external partners. This is a uniquely-challenging role: we empower small teams to deliver robust results, the systems are non-deterministic, and the bar is high. The opportunity for transformational impact is significant. If this excites you, we want you on our team.
Responsibilities: In this application engineering role, you will drive the architecture of the Satori platform as it rapidly scales. Your direct users are fellow product engineers who protect business-critical communications for Fortune 100 customers 24/7/365. You will design the agent runtimes and SDKs product teams build on, and define what 'release-ready' means at Proofpoint: the eval suites, safety checks, telemetry, and AuthX that gate every rollout. The primitives you set — from prompt management to observability — will shape how mission-critical agentic software ships across the company. You will partner with product tech leads to turn one-off integrations into reusable platform capabilities, and like every Staff engineer here, you will be responsible for shipping code and owning production-grade services.
What You Bring to the Team:
- Able to work on-site four days per week at our Belfast office
- Extensive experience designing, developing, and supporting applications in a microservices cloud environment.
- Personal interest in AI agents — you tinker with agent frameworks or LLM SDKs (LangGraph, OpenAI/Anthropic Agents SDK, MCP, LangChain, or similar) and keep up with the field.
- Prior experience taking agentic or LLM-based systems to production — not just prototypes — including the eval, observability, and rollback story.
- Deep experience with Python; TypeScript/Node a plus.
- Hands-on work with agent frameworks and eval tooling.
- Track record of debugging distributed systems from traces; experience with OpenTelemetry’s GenAI semantic conventions a plus.
- Cloud-native development, automating deployments, familiarity with container systems; AWS experience a plus.
- Excellent time management skills, comfortable coordinating work with colleagues in the US and around the globe.
- Excellent communication and leadership — driving architectural conversations across teams, managing stakeholders, and mentoring engineers.
- A proactive 'get it done' attitude and willingness to move forward through uncertainty.
- Readiness to participate in on-call rotation during times coordinated with US-based colleagues.
- BSc or MSc in Computer Science or related field, or equivalent experience.
Beneficial Experience: Experience with AI-driven development (e.g. Claude Code, Codex) and agentic communication protocols (e.g. A2A, MCP) preferred. Large scale event processing a plus but not required.
Why Proofpoint? At Proofpoint, we believe that an exceptional career experience includes a comprehensive compensation and benefits package. Here are just a few reasons you’ll love working with us:
- Competitive compensation
- Comprehensive benefits
- Career success on your terms
- Flexible work environment
- Annual wellness and community outreach days
- Always on recognition for your contributions
- Global collaboration and networking opportunities
Our Culture: Our culture is rooted in values that inspire belonging, empower purpose and drive success-every day, for everyone. We encourage applications from individuals of all backgrounds, experiences, and perspectives. If you need accommodation during the application or interview process, please reach out to accessibility@proofpoint.com.
How to Apply: Interested? Submit your application along with any supporting information- we can’t wait to hear from you!
Summary: Location: Belfast, Northern Ireland Type: Full time
Staff Software Engineer - AI Agents (Satori) in Belfast employer: Proofpoint
At Proofpoint, we pride ourselves on being an exceptional employer that fosters a collaborative and innovative work culture. Our Benelux team is dedicated to employee growth, offering extensive training and development opportunities while working in a dynamic environment that values diversity and inclusion. With competitive benefits and a focus on meaningful work, joining us means becoming part of a mission-driven company committed to protecting organisations from advanced threats.
StudySmarter Expert Advice🤫
We think this is how you could land Staff Software Engineer - AI Agents (Satori) in Belfast
✨Join Local Tech Meetups
Get out there and mingle with fellow developers by joining local tech meetups. It’s a fantastic way to meet people who might be working at Proofpoint or know someone who does. Plus, you can pick up some trendy tech skills and trends while you're at it!
✨Contribute to Open Source Projects
Show off your coding chops by jumping into open-source projects. Not only does this give you practical experience, but it also gets you noticed in the dev community. You'll create a killer portfolio that speaks volumes about your skills to Proofpoint.
✨Tap into Online Developer Communities
Don’t underestimate the power of online developer communities like GitHub, Stack Overflow, and even Reddit. Participate in discussions, share your projects, and build your visibility. We can often find opportunities through these channels that can lead to a full-time gig at companies like Proofpoint.
✨Explore Job Boards Specifically for Tech Roles
Keep your eyes peeled on job boards that focus on tech roles. Sites like TechCareers or Stack Overflow Jobs can often have listings for companies like Proofpoint that might not show up on broader job sites. Make it a habit to check these regularly, and don’t hesitate to apply directly through our website!
We think you need these skills to ace Staff Software Engineer - AI Agents (Satori) in Belfast
Some tips for your application 🫡
Show off your coding skills:When applying for a software engineering role, it's super important to showcase your coding skills. Make sure your CV includes your tech stack, any relevant programming languages you’re comfortable with, and examples of projects you've worked on. If you have a GitHub profile, link it up! We love to see code in action.
Tailor your portfolio:For a full-time role, we’d expect to see some solid examples of your work in your portfolio. Make sure to include at least two or three projects that highlight your problem-solving skills and your ability to work with different technologies. Focus on the projects that are most relevant to the position at Proofpoint.
Craft a killer cover letter:Your cover letter is your chance to stand out—make it personal! Explain why you want to work at Proofpoint and how your skills align with the role. Show us your passion for software development. We dig enthusiastic candidates who understand the value of collaboration and continuous learning!
Be clear and concise:When it comes to writing your CV and cover letter, clarity is key. Avoid jargon that could confuse us and stick to simple, direct language. Highlight your achievements with quantifiable results where possible, and keep everything easy to read. A well-organised application goes a long way!
How to prepare for a job interview at Proofpoint
✨Brush Up on Your Coding Skills
For a full-time software engineering role, it's crucial that we stay sharp with our coding abilities. Expect technical questions that might involve solving problems on the spot or discussing algorithms. Practise on platforms like LeetCode or HackerRank to get comfortable with the types of questions that often come up.
✨Know Your Tools and Frameworks
Make sure we’re well-acquainted with the tools and technologies listed in the job description. Familiarise ourselves with any specific frameworks or programming languages mentioned. If Proofpoint uses React or Node.js, for instance, be ready to discuss how we’ve used them in previous projects or coursework.
✨Showcase Your Projects
Bring along a portfolio that highlights our best work. This could be code samples, GitHub repositories, or any side projects we’ve built. Make sure we can talk through our thought process for each project, especially the challenges we faced and how we solved them—this shows our problem-solving skills in action.
✨Prepare for Behavioural Questions
While technical skills are key, full-time positions also require cultural fit. Be ready to discuss our previous experiences and how we handle teamwork, conflict, and deadlines. Brush up on the STAR method—Situation, Task, Action, Result—to clearly articulate our past experiences when discussing how we've contributed to a team.
