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Sustaining Engineer

Checkmarx

Checkmarx

Software Engineering
Braga, Portugal
Posted on Jan 27, 2026

Sustaining Engineer

  • Support
  • Braga, Portugal
  • Junior
  • Full time
  • ID: P0417

Description

Who are we?

Checkmarx is the leader in application security and ensures that enterprises worldwide can secure their application development from code to cloud. Our consolidated platform and services address the needs of enterprises by improving security and reducing TCO, while simultaneously building trust between AppSec, developers, and CISOs. At Checkmarx, we believe it’s not just about finding risk but remediating it across the entire application footprint and software supply chain with one seamless process for all relevant stakeholders.

How will you make an impact?

We are looking for a Junior Software Engineer to join the Sustaining Engineering team in Braga, Portugal (hybrid).

The team is part of the ever-growing Checkmarx branch in Portugal with a highly versatile and professional set of people, using a wide range of development methodologies and technologies to deliver and maintain a unique array of Checkmarx products.

This team is responsible for all R&D Tier 4 tasks bridging customer support and the R&D groups. The day-to-day work includes investigation and troubleshooting with Support, Professional Services and Fortune 1000 enterprise customers as well as development and delivery of solutions, mainly on .NET. In this position you will have the unique opportunity to grow your knowledge of web-applications, industry standard frameworks and scripting languages and learn about the fascinating world of software security.

What you’ll be doing:

  • Supporting, maintaining, and troubleshooting large scale enterprise and cloud-native applications
  • Taking full ownership on support cases while being capable of effectively communicating with customers when needed
  • Recreate customer issues in complex environments, be able to provide a workaround and developing definitive solutions
  • Interacting with a global team across multiple areas like product, R&D, support, and DevOps
  • Apply code fixes to resolve customer issues or deliver small new features

Requirements

What is needed to succeed?

  • B.A. / M.Sc / Ph.D in computer science or equivalent, from a known university
  • Knowledge of modern programming languages like .NET C# or GOLANG
  • Basic experience with web-application development (API calls, micro-services, AWS, and distributed environments)
  • Basic experience with SQL
  • Basic knowledge and interest in software security
  • A strong sense of responsibility and sensibility towards the customer
  • Fluent English and strong verbal and written communication skills
  • Strong analytical and collaborative skills.

What we have to offer

What we have to offer?

Checkmarx offers a great work environment, professional development, challenging careers, competitive compensation, great work-life balance, as well as great benefits and perks throughout the year.

Checkmarx is an Equal Opportunity Employer. Employment decisions are made without regard to race, color, religion, national or ethnic origin, gender, sexual orientation, gender identity or expression, age, disability, or other characteristics protected by law.