Associate Software Engineer - AI Agents (Satori)

Proofpoint; Belfast City District; On-site; GBP 50,000 - 75,000; Full time

Benefits offered by this job

Competitive compensation

Comprehensive benefits

Career success on your terms

Flexible work environment

Annual wellness and community outreach

Always on recognition

Global collaboration

Job summary

Proofpoint in Belfast is seeking an Associate Software Engineer to help build features and services on the Satori platform, accelerating autonomous security operations for Fortune 100 customers. You’ll work with product engineers to ship mission‑critical agentic software.

The role emphasizes hands-on coding in Python and TypeScript/Node, cloud-native microservices, and exposure to LangGraph, OpenAI/Anthropic SDKs, and AWS.

Qualifications

• BSc or MSc in Computer Science or related field, or equivalent experience.
• Experience with designing, developing, and supporting applications in a microservices cloud environment, or entry into the role with a Master's degree.
• Personal interest in AI agents — you tinker with agent frameworks or LLM SDKs and keep up with the field.

Responsibilities

• Implement components of the agent runtimes and SDKs used by product teams.
• Help uphold release-readiness: eval suites, safety checks, telemetry, and AuthX.
• Ship code and operate production-grade services across the platform.

Skills

Python

TypeScript/Node

OpenTelemetry

Cloud-native

AWS

Microservices

LLM SDKs

Linux

Communication

On-call readiness

Education

BSc in Computer Science

MSc in Computer Science

Tools

LangGraph

OpenAI/Anthropic SDK

MCP

LangChain

Docker

Kubernetes

Job description

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 an Associate 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. In this application engineering role, you will build features and services on the Satori platform. Your direct users are fellow product engineers who protect business‑critical communications for Fortune 100 customers 24/7/365.

Responsibilities

Working closely with senior and staff engineers, you will implement components of the agent runtimes and SDKs that product teams build on, and help uphold what 'release‑ready' means at Proofpoint: the eval suites, safety checks, telemetry, and AuthX that gate every rollout. You will learn how mission‑critical agentic software gets built across the company, and you will be responsible for shipping code and helping operate production‑grade services. 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 growth and transformational impact is significant. If this excites you, we want you on our team.

What You Bring to the Team

• Able to work on‑site four days per week at our Belfast office
• Experience with designing, developing, and supporting applications in a microservices cloud environment, or entry into the role with a Master's degree.
• 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.
• Exposure to agentic or LLM‑based systems, and curiosity about the eval, observability, and rollback story that takes them beyond prototypes.
• Demonstrated learning velocity and curiosity; driven to understand systems beyond surface‑level usage and eager to learn enterprise platform‑level tradeoffs
• Solid working experience with Python; TypeScript/Node a plus.
• Comfortable debugging services and reading logs and traces; exposure to OpenTelemetry a plus.
• Familiarity with cloud‑native development and container systems; AWS experience a plus.
• Excellent time management skills and willingness to coordinate work with colleagues in the US and around the globe.
• Excellent communication skills and a collaborative, teachable attitude.
• 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

• Interest in AI‑driven development (e.g. Claude Code, Codex) and agentic communication protocols (e.g. A2A, MCP) preferred.

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 environmentAnnual 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 [e-mail].

Proofpoint is an equal opportunity employer

Proofpoint is an equal opportunity employer, we hire without consideration to race, religion, creed, color, national origin, age, gender, sexual orientation, marital status, veteran status or disability.