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Junior Reverse Engineer (Hybrid - Barcelona)

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What makes Cognizant a truly unique place to work?

Cognizant offers strong growth, global reach and an innovative environment where tech professionals can deliver meaningful, high‑impact work. Teams collaborate across regions to build and deliver advanced solutions for leading companies, enabling greater agility, innovation and performance.

We are seeking a motivated Junior Reverse Engineer to join our team. You will perform essential static and dynamic analysis on Android applications, focusing on the functionality and usage of our SDK. This role provides a structured environment where you will gain hands-on experience with industry-leading tools and methodologies. While expected to strive for independent resolution, an established escalation path is in place to support your growth in handling complex, low-level challenges.

This is an excellent opportunity to begin a career in mobile security and reverse engineering, where you can develop skills to handle complex technical challenges.

Can you see yourself in this position? Check the requirements and apply!

Key Responsibilities:

  • Conduct static and dynamic analysis of Android applications (APKs) to understand functionality and application logic.
  • Execute reverse engineering tasks within established, easier-to-moderate complexity workflows.
  • Identify, analyze, and document potential malicious or non-compliant SDK usage through analysis.
  • Attempt independent resolution on all assigned analysis tasks; recognize complex anti-analysis, highly obfuscated, or native code challenges and document them clearly for escalation to Mid/Senior Engineers.
  • Utilize tools such as Apktool, Frida, Ghidra, Hexdump, and Burp Suite for daily tasks.
  • Collaborate with senior members to communicate findings and learn mitigation strategies.

You are someone who brings:

  • Expertise in Android operating system architecture and application development lifecycle.
  • Strong analytical and problem-solving skills.
  • Ability to work independently and as part of a team.
  • Good analytical, problem-solving, and documentation skills.

What we Offer:

At Cognizant, you will have the opportunity to work on diverse projects and engage with the latest industry technologies. We are committed to creating excellent workplace experience, offering a competitive base salary and a comprehensive range of benefits, including:

  • An international working environment with a diverse and inclusive team.
  • Flexible working hours and a hybrid work model.
  • Annual bonus program.
  • Extensive training and career development opportunities, both locally and internationally, including technical and soft‑skills training.
  • Private healthcare coverage and additional life insurance.
  • A culture grounded in respect, collaboration and empowerment.
  • Company‑sponsored activities, initiatives and partnerships.
  • The opportunity to be part of a rapidly growing global organization operating in multicultural teams.
  • A pleasant, supportive and inspiring work atmosphere.
  • A genuine commitment to inclusion and diversity.
  • Employee referral program.
  • Opportunities to participate in volunteering initiatives.
  • Access to internal events, communities and knowledge‑sharing networks.

About us
Cognizant (Nasdaq: CTSH) is an AI Builder and technology services provider, building the bridge between AI investment and enterprise value by building full-stack AI solutions for our clients. Our deep industry, process and engineering expertise enables us to build an organization’s unique context into technology systems that amplify human potential, realize tangible returns and keep global enterprises ahead in a fast-changing world. See how at www.cognizant.com or @cognizant.

Additional employment information

Compensation information is accurate as of the date of this posting. Cognizant reserves the right to modify this information at any time, subject to applicable law.

Applicants may be required to attend interviews in person or by video conference. In addition, candidates may be required to present their current state or government issued ID during each interview.

Cognizant is an equal opportunity employer. Your application and candidacy will not be considered based on race, color, sex, religion, creed, sexual orientation, gender identity, national origin, disability, genetic information, pregnancy, veteran status or any other characteristic protected by federal, state or local laws.

If you have a disability that requires reasonable accommodation to search for a job opening or submit an application, please email [email protected] for roles based in the Americas or [email protected] for roles based in India.

Benefits that help you thrive and grow

Our benefits program is built with you in mind—so you can enjoy a fulfilling, balanced and healthy life.

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Financial wellbeing

We regularly review market data to ensure compensation reflects the value you bring. Your benefits extend beyond pay and may include retirement plans, financial education, etc.

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Physical and mental health

We empower you to prioritize your wellbeing through paid time off, flexible working where possible, healthcare plans, counselling, our Mental Health Allyship program and more. 

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Your career, your way

With 350,000+ roles at Cognizant, you’ll have opportunities explore new technologies, industries and locations—and build the skills you need to grow your career.

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Real-world impact

Think about the biggest brands you rely on. Chances are, they rely on us to help strengthen their business. Here, you’ll turn bold ideas into solutions that improve lives everywhere.

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