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# Sr. Software Engineer

- **Company:** Proofpoint
- **Location:** Belfast, United Kingdom
- **Experience:** Expert
- **Contract:** Permanent contract
- **Skills:** Java (Programming Language), .NET Framework, Microsoft Excel, Application Programming Interfaces (APIs), Amazon Web Services, Microsoft Azure, Business Systems, Data Infrastructure, Data Security, Distributed Systems, Python (Programming Language), Backend, Data Lakes, Apache Kafka, Codebase
- **Published:** October 24, 2026
- **Apply:** https://dejobs.org/x/x/DCBB594E74474F18A152CB7896D48272/job/

## About the Role

* Possess extensive experience in Backend development (Codebase is Python, but can consider transition from Java or .NET)
 * Public cloud exposure with AWS, Azure or GCP
 * Track record of working at scale and solving diverse technical challenges
 * Product-focused mindset, understanding the impact of your decisions on customers and the organization
 * Ability to proactively identify and solve problems before they impact progress
 * Be willing and able to lead and shape the technical direction of projects, aligning with business goals
 * Mentor peers, sharing knowledge and fostering a culture of continuous improvement.
 * Demonstrate advanced problem-solving abilities, navigating complex challenges with innovative solutions
 * Collaborate effectively with cross-functional teams, influencing outcomes and driving project success
 * Excel in communication, capable of empathetic and constructive dialogue in both technical and non-technical settings with a varied audience

## Description

We're looking for a Sr. Software Engineer to join the Inception team within our Core Email Protection API group. The team owns the email processing flow, integrations with other Proofpoint services, and critical data infrastructure, including Kafka clusters and data lakes. You'll join at a pivotal moment, as we scale our services to meet the enterprise-grade demands of our customers.

Your day-to-day

 * Engage with the world of Python 3 and AWS, architecting robust distributed systems designed to manage immense volumes of data with exceptional speed.
 * Collaborate across various functions, harnessing team synergy to deliver premium solutions and outcomes for our esteemed customers.
 * Apply your keen product mindset and tech savvy to help shape Defender's future, contributing to our progressive vision.
 * Cultivate a supportive environment by providing thoughtful, actionable feedback, fostering growth and development among team members.
 * Embrace the responsibility of maintaining and supporting our essential business systems, always mindful of the interplay between scale, latency, and cost.
 * Take on the complex task of processing highly sensitive data, a challenge that will refine your skills in data security and handling.
 * Guide and support your team members, enhancing the team's effectiveness and productivity by applying your knowledge and experience.
 * Spearhead cross-team projects, guiding them from their conception through to their deployment in production.