Software Engineer II

Posted 5 Days Ago
Be an Early Applicant
Belfast, County Antrim, Northern Ireland, GBR
In-Office
Entry level
Security • Cybersecurity
The Role
Build and operate production services for Proofpoint’s Microsoft 365 Outlook add-in and Adaptive Email Data Loss Prevention platform. Improve scalability, reliability, security, and user experience; work with sensitive data; ship continuously through CI/CD; and use product and production data to guide development. The role requires production Python, AWS, database, container, infrastructure-as-code, and security experience, with JavaScript/React and large-scale infrastructure experience preferred.
Summary Generated by Built In

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

We are looking for a Software Engineer II to join one of our Adaptive Email Data Loss Prevention (AEDLP) teams. The team owns Proofpoint’s Microsoft 365 add-in (currently for Outlook), which helps organisations stop sensitive data leaving through email. As we scale our services, deepen our integration with Microsoft, and align more closely with the wider Proofpoint ecosystem, you will help shape what comes next. 


The team’s tech stack includes: 
 

  • Languages: Python 3 (JavaScript, React or other languages are a bonus) 
  • AWS: SQS, SNS, ECS, ECR, Lambda 
  • High-volume NoSQL and SQL databases, such as DynamoDB and Postgres 
  • Infrastructure as code: Terraform 
  • DevOps tooling: CircleCI, Docker, Git and GitHub  


Responsibilities 

We follow a DevOps culture: we build our services and we run them. Day to day, you will:  

  • Improve the scalability and reliability of our services 
  • Research security vulnerabilities and implement security measures 
  • Use production and product data to decide what the team builds next 
  • Improve the user experience of our add-in in Outlook (desktop and Outlook on the web) on Windows and Mac 
  • Help harden the “Human Security Layer” 
  • Ship code to production continuously via CI/CD 
  • Handle sensitive data with care, and build with security in mind 
  • Work with senior and staff engineers on complex problems, and independently on simpler ones 

 

What you’ll bring 

Essential 

  • Experience building and running production services in Python 
  • Experience with AWS and with SQL or NoSQL databases 
  • Familiarity with CI/CD, containers and infrastructure as code 
  • Good judgement when choosing technical approaches, and a security-first mindset 

Desirable 

  • Experience with JavaScript/React  
  • Experience with data and infrastructure at scale 

How we work
 

Integrating our product with email platforms such as Google and Microsoft is technically complex, especially at our scale and with our security requirements. Our standards for security, quality and availability are the highest, but we also foster psychological safety: we are comfortable with the unknown and love to experiment to find the right solution. 

We use data to validate our decisions and measure our progress, and it shapes our goals and roadmap. We think you’ll thrive here if you focus on outcomes rather than outputs and use evidence to back your arguments and influence the team’s direction. 

Our main challenge ahead is scaling, both vertically (the size of individual tenants) and horizontally (the number of tenants). 

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 [email protected].


How to Apply

Interested? Submit your application along with any supporting information- we can’t wait to hear from you!

Skills Required

  • Experience building and running production services in Python
  • Experience with AWS
  • Experience with SQL or NoSQL databases
  • Familiarity with CI/CD
  • Familiarity with containers
  • Familiarity with infrastructure as code
  • Good judgment when choosing technical approaches
  • Security-first mindset
  • Experience with JavaScript or React
  • Experience with data and infrastructure at scale

Proofpoint Compensation & Benefits Highlights

The following summarizes recurring compensation and benefits themes identified from responses generated by popular LLMs to common candidate questions about Proofpoint and has not been reviewed or approved by Proofpoint.

  • Healthcare Strength — Healthcare coverage spans medical, dental, vision, life, and disability, complemented by global physical, mental, and financial health programs. Wellbeing resources such as mindfulness, resilience, and meditation courses are explicitly highlighted.
  • Leave & Time Off Breadth — Time-off provisions include PTO, paid holidays and sick days, with parental and family medical leave available. Added flexibility appears in wellness days, a hybrid-first model, and limited work-from-anywhere periods.
  • Fair & Transparent Compensation — Pay is considered competitive in many roles and settings, with external recognition indicating strong standing relative to peers. Feedback suggests employees in several departments view compensation favorably when considering base, bonus, and benefits together.

Proofpoint Insights

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The Company
HQ: Sunnyvale, CA
3,780 Employees
Year Founded: 2002

What We Do

We provide the most effective cybersecurity and compliance solutions to protect people on every channel including email, the web, the cloud, and social media.

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