Senior Full Stack Software Engineer, Threat Intelligence Services

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 innovateResponsive to feedback, challenges and opportunitiesAccountable for results and best in class outcomesVisionary in future focused problem-solvingExceptional in execution and impactThe Role The Threat Intelligence Services (TIS) team turns Proofpoint's threat data and telemetry into intelligence products for customers through reporting, analytics, detection content, and live briefings. Behind that work is a fast-growing suite of internal web applications, data integrations, automation, cloud infrastructure, and a customer-facing CMS. We are hiring a software engineer to build and operate that platform. You will own tools end to end: standing up and running the team's AWS environment, building the APIs and integrations that connect internal threat-intel systems, third-party feeds, and AI/LLM services, and shipping the web front-ends and automation the analyst team relies on daily to produce and deliver intelligence at scale. This is a builder role for a full-stack, infrastructure-comfortable engineer who can take an idea from an analyst to a deployed, dependable tool with minimal supervision. This is the engineering counterpart to our customer-facing Threat Intelligence Analyst role: you make the analysts faster and their output sharper by replacing manual, repetitive workflows with reliable software and ensure that customers can reliably access content and APIs. Your day-to-day Administer and troubleshoot the team's AWS environment, including but not limited to EC2, Lambda, storage, networking (VPC, DNS/Route 53, transit gateway, security groups), monitoring, and deployment pipelines. Design and build APIs and integrations (AWS API Gateway) that wire internal threat-intel platforms, third-party threat feeds, and LLM services into the tooling suite. Develop and deploy the web front-ends analysts use to generate and deliver intelligence (React / Node.js; Fuse), including dashboards, report/deck generators, and detection tooling. Maintain and develop enhancements to the headless CMS-based customer threat intel portal, its underlying database (PostgreSQL and Elastic Search) infrastructure, and micro-frontend (Fuse/React) Write Python services (FastAPI) for data processing, report and detection-rule generation, and workflow automation. Model and query data across PostgreSQL and Elastic Search and support headless-CMS-backed content workflows. Partner directly with analysts to identify manual, repetitive intelligence tasks and turn them into automated, maintainable products. Keep the platform secure, observable, and well-documented. You own reliability, troubleshooting, QA, and security for what you ship. Tech stack Languages: Python, JavaScript (React/JSX) Cloud: AWS — Lambda, API Gateway, IAM, Secrets Manager, CloudWatch, ALB/VPC IaC: Terraform / Terramake CMS: dotCMS API/Auth: REST APIs, custom authorizers, JWT / API keys Domain: Threat intelligence / IOC feeds (STIX, MISP, CSV) Tooling: Git, CI/CD, AWS CLI What you bring to the team (required) 2-5 years of professional software engineering experience and are comfortable delivering and operating production systems with minimal supervision. We are open to candidates around the 2-year mark, but this is not an entry-level role. Hands-on AWS administration: EC2, Lambda, storage, networking, monitoring, and troubleshooting. API development and integration experience; AWS API Gateway preferred. Front-end development with React and Node.js, ideally including Fuse (or a comparable React application framework). Proficiency in Python. SQL and relational database experience, preferably PostgreSQL. Ability to learn new systems and domains quickly and work independently across the full stack infrastructure, backend, and front-end. Nice to have Micro front-end development and deployment. ElasticSearch. Experience with headless CMSs (e.g., dotCMS, Payload, Strapi, or Contentful). MCP (Model Context Protocol) server development. Containerization (Docker), CI/CD, and infrastructure-as-code. Familiarity with cybersecurity or threat-intelligence concepts as you'll work shoulder-to-shoulder with analysts, so curiosity about the domain goes a long way (you don't need to be an analyst yourself). 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 compensationComprehensive benefitsCareer success on your termsFlexible work environmentAnnual wellness and community outreach daysAlways on recognition for your contributionsGlobal collaboration and networking opportunitiesOur 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 View email address on click.appcast.io to ApplyInterested? Submit your application along with any supporting information- we can’t wait to hear from you!Consistent with Proofpoint values and applicable law, we provide the following information to promote pay transparency and equity. Our compensation reflects the cost of labor across several U.S. geographic markets, and we pay differently based on those defined markets as set out below. Pay within these ranges varies and depends on job-related knowledge, skills, and experience. The actual offer will be based on the individual candidate. The range provided may represent a candidate range and may not reflect the full range for an individual tenured employee. This role may be eligible for variable compensation and/or equity. We offer a competitive benefits package, including flexible time off, a comprehensive well-being program with two paid Wellbeing Days and two paid Volunteer Days per year, plus a three-week Work from Anywhere option.Base Pay Ranges:SF Bay Area, New York City Metro Area:Base Pay Range: 166,500.00 - 244,200.00 USDCalifornia (excludes SF Bay Area), Colorado, Connecticut, Illinois, Washington DC Metro, Maryland, Massachusetts, New Jersey, Texas, Washington, Virginia, and Alaska:Base Pay Range: 136,200.00 - 199,760.00 USDAll other cities and states excluding those listed above:Base Pay Range: 124,100.00 - 182,050.00 USDSummaryLocation: Arizona; North Carolina; Texas; New Jersey; Tennessee; Utah; Toronto, Canada; Virginia; Vermont; Minnesota; Cordoba, ArgentinaType: Full time