Sr. Software Engineer - #1779143
Proofpoint
Date: 1 day ago
City: Belfast
Contract type: Full time
Work schedule: Full day

About Us
We are the leader in human-centric cybersecurity. Half a million customers, including 87 of the Fortune 100, rely on
Proofpoint to protect their organizations. We’re driven by a mission to stay ahead of bad actors and safeguard the
digital world. 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.
Corporate Overview
Proofpoint is a leading cybersecurity company protecting organizations’ greatest assets and biggest risks vulnerabilities in people. With an integrated suite of cloud-based solutions, Proofpoint helps companies around the world stop targeted threats, safeguard their data, and make their users more resilient against cyber-attacks. Leading organizations of all sizes, including more than half of the Fortune 1000, rely on Proofpoint for people-centric security and compliance solutions mitigating their most critical risks across email, the cloud, social media, and the web.
We are singularly devoted to helping our customers protect their greatest assets and biggest security risk their people. That’s why we’re a leader in next-generation cybersecurity. Protection Starts with People. Proofpoint.
The Role
We are looking for a Sr. Software Engineer to join the Proofpoint Tessian Flow team. This team oversees the development of some key customer integrations, among them is a Mail Transfer Agent (MTA) that processes inbound and outbound emails, an Outlook COM Add-in and several others.
You will be primarily working on the Tessian MTA server which is highly optimised for secure email traffic and integrates with M365, G-Suite and Exchange Server, for both inbound and outbound traffic. It currently serves millions of inbound, outbound and journal email transactions, every day, across the world.
You will be joining at an exciting time, as the team prepares to further scale the Tessian MTA server following the Proofpoint acquisition. We are also looking to transition to a new multi-tenant architecture, and to integrate deeper with the Proofpoint ecosystem.
Your day-to-day
In our Flow Team, we deeply embrace the DevOps culture, as we design, build, test, deploy and monitor the integrations. Our day to day involves developing the integrations mentioned above for scale; researching and implementing security measures; and monitoring production environments to discover what’s next for the team using product data.
You’ll be expected to
Operating a mail transport agent, is an interesting challenge with significant technical complexity, especially when considering the scale of our traffic and our security guarantees.
Essential Experience
Why Proofpoint
Protecting people is at the heart of our award-winning lineup of cybersecurity solutions, and the people who work here are the key to our success. We’re a customer-focused and a driven-to-win organization with leading-edge products. We are an inclusive, diverse, multinational company that believes in culture fit, but more importantly ‘culture-add’, and we strongly encourage people from all walks of life to apply.
We believe in hiring the best and the brightest to help cultivate our culture of collaboration and appreciation. Apply today and explore your future at Proofpoint!
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
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 here https //www.proofpoint.com/us/company/careers. We can’t wait to hear from you!
We are the leader in human-centric cybersecurity. Half a million customers, including 87 of the Fortune 100, rely on
Proofpoint to protect their organizations. We’re driven by a mission to stay ahead of bad actors and safeguard the
digital world. 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.
Corporate Overview
Proofpoint is a leading cybersecurity company protecting organizations’ greatest assets and biggest risks vulnerabilities in people. With an integrated suite of cloud-based solutions, Proofpoint helps companies around the world stop targeted threats, safeguard their data, and make their users more resilient against cyber-attacks. Leading organizations of all sizes, including more than half of the Fortune 1000, rely on Proofpoint for people-centric security and compliance solutions mitigating their most critical risks across email, the cloud, social media, and the web.
We are singularly devoted to helping our customers protect their greatest assets and biggest security risk their people. That’s why we’re a leader in next-generation cybersecurity. Protection Starts with People. Proofpoint.
The Role
We are looking for a Sr. Software Engineer to join the Proofpoint Tessian Flow team. This team oversees the development of some key customer integrations, among them is a Mail Transfer Agent (MTA) that processes inbound and outbound emails, an Outlook COM Add-in and several others.
You will be primarily working on the Tessian MTA server which is highly optimised for secure email traffic and integrates with M365, G-Suite and Exchange Server, for both inbound and outbound traffic. It currently serves millions of inbound, outbound and journal email transactions, every day, across the world.
You will be joining at an exciting time, as the team prepares to further scale the Tessian MTA server following the Proofpoint acquisition. We are also looking to transition to a new multi-tenant architecture, and to integrate deeper with the Proofpoint ecosystem.
Your day-to-day
In our Flow Team, we deeply embrace the DevOps culture, as we design, build, test, deploy and monitor the integrations. Our day to day involves developing the integrations mentioned above for scale; researching and implementing security measures; and monitoring production environments to discover what’s next for the team using product data.
You’ll be expected to
- Design and build reliable distributed systems that handle volumes of data with low latency
- Maintain and support business-critical systems where scale and latency are front-of-mind
- Ship code to production weekly using CI/CD
- Tackle the challenges that come with processing highly sensitive data
- Learn to build with security in mind
- Mentor other engineers, review design documents and code, and provide leadership in solving complex technical challenges
- Make your mark on ambitious projects
Operating a mail transport agent, is an interesting challenge with significant technical complexity, especially when considering the scale of our traffic and our security guarantees.
Essential Experience
- Proven experience with NodeJS and TypeScript for backend development
- Extensive experience with AWS Lambda, ECS, EC2, CloudWatch
- Experience with Docker for creating and deploying containers
- Prior experience with structured languages and desire to learn .NET
- Leading engineering projects, ensuring their planning, coordination, and execution
- High volume NoSQL and SQL databases such as; Dynamo DB, Postgres
- Terraform built environments
- SMTP protocol, network interfaces
- Experience working with data and infrastructure at scale
Why Proofpoint
Protecting people is at the heart of our award-winning lineup of cybersecurity solutions, and the people who work here are the key to our success. We’re a customer-focused and a driven-to-win organization with leading-edge products. We are an inclusive, diverse, multinational company that believes in culture fit, but more importantly ‘culture-add’, and we strongly encourage people from all walks of life to apply.
We believe in hiring the best and the brightest to help cultivate our culture of collaboration and appreciation. Apply today and explore your future at Proofpoint!
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
- Learning & Development We are committed to the growth and development of our team members, offering a range of programs including leadership and professional development workshops, stretch project assignments, and mentoring opportunities to help employees reach their full potential.
- Flexible work environment [Remote options, hybrid schedules, flexible hours, etc.].
- Annual wellness and community outreach days
- Always on recognition for your contributions
- Global collaboration and networking opportunities
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 here https //www.proofpoint.com/us/company/careers. We can’t wait to hear from you!
How to apply
To apply for this job you need to authorize on our website. If you don't have an account yet, please register.
Post a resumeSimilar jobs
Financial Advisor
MCS Ltd - Sage - Asta,
2 hours ago
Financial Advisor - Belfast MCS Group are looking for an experienced Financial Advisor to join a well-established, independent wealth management firm headquartered in Belfast. The Company Our client is a well-established wealth manager based in Belfast. They provide a range...

Software Engineer
Global Payments Inc.,
2 hours ago
Description Description Our Company Global Payments helps businesses succeed by delivering secure and personalized payment solutions, allowing developers of business management solutions to accept payments through their systems and add value to their software. While many processors offer payments tied...

Architecture Lead - Citi
Jobs via eFinancialCareers,
17 hours ago
Overview: Citi is a world-leading global bank. We have approximately 200 million customer accounts and a presence in more than 160 countries and jurisdictions worldwide. We provide consumers, corporations, governments, and institutions with a broad range of financial products and...
