onespan
onespan1mo ago

Senior Software Engineer

Barcelonasenior
Software EngineerSoftware Engineering
0 views0 saves0 applied

Quick Summary

Overview

At OneSpan , we specialize in digital identity and anti-fraud solutions that create exceptional and secure experiences. OneSpan is currently looking for a Sr.

Technical Tools
Software EngineerSoftware Engineering

At OneSpan, we specialize in digital identity and anti-fraud solutions that create exceptional and secure experiences.

You will be involved in the design, development, and testing of our app protection tool. You will work on building the basis of a high-performance protection tool, improving system reliability, and contributing to the architecture of our security solution. You’ll find yourself researching and implementing cutting-edge technologies and security while writing high-quality code, including test coverage and frequent releases thanks to CI and automated build infrastructure.

Responsibilities

~1 min read
  • Design and develop our app protection tool using Python to support our platform and products.

  • Work on challenging architectural and performance problems, contributing to the evolution of our systems.

  • Write clean, maintainable, and testable code, ensuring high reliability and performance.

  • Collaborate closely with mobile developers, backend engineers, product managers, and designers to deliver well-architected solutions.

  • Improve the scalability, observability, and maintainability of our systems as the business grows.

  • Contribute to technical decision-making, code reviews, and architectural discussions.

  • Participate actively in the team’s life and help mentor other developers when needed.

Requirements

~1 min read
  • 5+ years of professional experience in software development with Python.

  • Solid understanding of software architecture, design patterns, and distributed systems.

  • Experience translating business requirements into technical designs and scalable solutions.

  • Experience with testing frameworks, unit testing, and test automation.

  • Ability to communicate clearly in English, both verbally and in writing.

  • Ability to make recommendations and technical decisions independently.

  • Strong collaboration skills and a team-oriented mindset.

Nice to Have

~1 min read
  • Experience solving architectural problems.

  • Familiarity with containerization technologies (Docker, Kubernetes).

  • Interest or experience in IT security technologies.

  • Experience with Git and CI/CD pipelines.

  • Experience on Android environment.

  • Capacity to understand with Dalvik bytecode / smali.

  • Java/Kotlin development experience.

  • Knowledge of Unix/Linux command line environments.

  • Experience working in Agile/Scrum environments.

  • Knowledge of cloud environments (AWS, GCP, or Azure).

  • Knowledge of cryptography and/or PKI infrastructure.

  • Strong analytical thinking and problem-solving mindset.

  • Passion for continuous learning and improvement.

 

OneSpan offers the best of both worlds – a solid foundation that only an established global enterprise can provide, with the energy and creativity of an innovative start-up. In every role at OneSpan, you’ll contribute to the success of the most advanced cybersecurity and have opportunities to grow. 

#LI-hybrid

#LI-LS1

Location & Eligibility

Where is the job
Barcelona
On-site at the office
Who can apply
Same as job location
Listed under
Worldwide

Listing Details

Posted
March 20, 2026
First seen
April 22, 2026
Last seen
May 1, 2026

Posting Health

Days active
9
Repost count
0
Trust Level
23%
Scored at
May 1, 2026

Signal breakdown

freshnesssource trustcontent trustemployer trust
onespan
onespan
greenhouse
Employees
750
Founded
1991
View company profile
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onespanSenior Software Engineer