Basic

Senior Software Engineer (Scanner)

Lisboa, Lisbon Metropolitan Area, Portugal Company: Jobio Client / Employer: Snyk
Posted: 18.05.2026
Closing date: 02.07.2026
Job reference: b36c23f2ecd71975e3d541ef6063ca5c

Job information

Location
Lisboa, Lisbon Metropolitan Area, Portugal
Company
Jobio
Client / Employer
Snyk
Job reference
b36c23f2ecd71975e3d541ef6063ca5c
Listing type
Basic
EU work permit required
No
Posted
18.05.2026
Closing date
02.07.2026

Job description

Every day, the world gets more digital thanks to tens of millions of developers building the future faster than ever. But with exponential growth comes exponential risk, as outnumbered security teams struggle to secure mountains of code. This is where Snyk (pronounced “sneak”) comes in. Snyk is a developer security platform that makes it easy for development teams to find, prioritize, and fix security vulnerabilities in code, dependencies, containers, and cloud infrastructure — and do it all right from the start. Snyk is on a mission to make the world a more secure place by empowering developers to develop fast and stay secure. Joining Snyk means embracing our core values: One Team, Care Deeply, Customer Centric, and Forward Thinking. As a member of our team, you’ll have the opportunity to thrive in a dynamic environment where fostering collaboration, leading with empathy, driving business impact, and inspiring trust are at the heart of everything we do.Our OpportunitySnyk, a leader in developer security, has acquired Probely, a modern Dynamic Application Security Testing (DAST) provider based in Portugal, with coverage of API security testing and web applications.In this role, you will develop our scanner, a key component of our scanning engine, improving its vulnerability detection capabilities, while adding other features and improving existing ones. Our scanner works in tandem with our crawler, testing web applications and API in an efficient way without reporting false positives, requiring a strong collaboration between various engineering teams.You’ll Spend Your Time:Analyzing requirements, specifications, and technical design documents in preparation for development.Developing the scanner's core functionalities, such as integrating with existing scanning modules, scanning queue management, or authentication;Research, develop, and improve the scanner vulnerability detection capabilities.Contribute to our firing range by adding new vulnerable applications and endpoints for testing purposes.Work with the different teams to discuss and implement technical solutions fix and identify bugs.Implement tests for any developed code.Review and test teammate's codeWhat You’ll Need:At least 5 years of commercial experience as a Software Engineer.Solid programming skills in JavaStrong knowledge of web technologies (HTTP, XHR, authentication mechanisms, etc).Knowledge of security concepts, especially web application security, is highly valued.Proficiency in Git and code management tools like GitHub, GitLab, or Bitbucket.Ability to lift the performance of a team through coaching and mentoring of more junior engineers.Effective communicator both verbally and in writing. Able to work collaboratively, be curious and have a growth mindset.We’d be Lucky if You: Experience with Python is highly valued.Enjoy working on early stage products; talking with customers to identify, prioritize and solve problems iteratively and build something that they really love.Feed off complex technical problems and find solutions where others see roadblocks.Embrace challenges and learn from them.#LI-CR1We care deeply about the warm, inclusive environment we’ve created and we value diversity – we welcome applications from those typically underrepresented in tech. If you like the sound of this role but are not totally sure whether you’re the right person, do apply anyway! About SnykSnyk is committed to creating an inclusive and engaging environment where our employees can thrive as we rally behind our common mission to make the digital world a safer place. From Snyk employee resource groups, to global benefits that help our employees prioritize their health, wellness, financial security, and a work/life blend, we aim to support our employees along their entire journeys here at Snyk.Benefits & ProgramsPrioritize health, wellness, financial security, and life balance with programs tailored to your location and role.Flexible working hours, work-from home allowances, in-office perks, and time off for learning and self developmentGenerous vacation and wellness time off, country-specific holidays, and 100% paid parental leave for all caregiversHealth benefits, employee assistance plans, and annual wellness allowanceCountry-specific life insurance, disability benefits, and retirement/pension programs, plus mobile phone and education allowances

Skills

ABAP adapt to changes in technological development plans AJAX Ajax Framework analyse software specifications Ansible Apache Maven Apache Tomcat APL ASP.NET Assembly (computer programming) blockchain openness blockchain platforms C COBOL CoffeeScript collect customer feedback on applications Common Lisp computer programming create flowchart diagram cyber attack counter-measures data visualisation software debug software defence standard procedures define technical requirements design user interface develop automated migration methods develop creative ideas develop software prototype do cloud refactoring Drupal Eclipse (integrated development environment software) engineering principles engineering processes Erlang Git Groovy Haskell IBM WebSphere ICT debugging tools ICT security legislation identify customer requirements integrate system components integrated development environment software Internet of Things interpret technical requirements Java (computer programming) JavaScript JavaScript Framework Jenkins (tools for software configuration management) KDevelop Laravel Lisp manage engineering project Matlab Microsoft Visual C++ migrate existing data ML (computer programming) MySQL NoSQL object-oriented modelling Objective-C OpenEdge Advanced Business Language Oracle Application Development Framework Pascal (computer programming) perform scientific research Perl PHP Project Management Prolog (computer programming) Puppet (tools for software configuration management) Python (computer programming) R Ruby (computer programming) Salt (tools for software configuration management) SAP R3 SAS language Scala Scratch (computer programming) screen reader Smalltalk (computer programming) smart contract software anomalies software frameworks Spark SQL STAF Swift (computer programming) technical drawings tools for software configuration management Trading Software TypeScript use an application-specific interface use automatic programming use concurrent programming use functional programming use logic programming use object-oriented programming use query languages use software design patterns use software libraries use technical drawing software utilise computer-aided software engineering tools utilise machine learning VBScript Visual Basic Web Services WordPress World Wide Web Consortium standards Xcode

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