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Junior Android Developer Jobs in Chicago, IL (NOW HIRING)

Tempus

Senior Application Security Engineer

Chicago, IL · On-site

$130K - $180K/yr

Perform deep-dive mobile security assessments on iOS and Android, including reverse engineering and ... Mentor junior team members and provide security training to development teams to foster a robust ...

Bayer

Staff Engineer, Mobile Cross-platform

Chicago, IL · On-site +1

$130K - $180K/yr

  • Medical

  • Dental

  • Vision

  • Retirement

  • PTO

Participate in code reviews and mentor junior developers. On our team we share knowledge, help each ... and Android platforms (Swift and Kotlin languages) Deep knowledge of architectural patterns (e.g ...

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Junior Android Developer information

See Chicago, IL salary details

$24.7K

$91.7K

$141.8K

How much do junior android developer jobs pay per year?

As of Aug 13, 2026, the average yearly pay for junior android developer in Chicago, IL is $91,730.00, according to ZipRecruiter salary data. Most workers in this role earn between $69,100.00 and $89,700.00 per year, depending on experience, location, and employer.

What is a junior Android developer?

A Junior Android Developer is an entry-level role responsible for assisting in the development and maintenance of Android applications. They work with senior developers to write clean, efficient code using Kotlin or Java, troubleshoot bugs, and implement user interface designs. This role often requires knowledge of Android SDK, APIs, and version control systems like Git. Junior developers typically collaborate with cross-functional teams to enhance app functionality and user experience.

What does a junior Android developer do?

A typical day for a Junior Android Developer involves writing and testing code for Android apps, debugging issues, and implementing new features under the guidance of senior developers. You’ll participate in team meetings or agile stand-ups, receive feedback on your work, and collaborate closely with designers and QA testers to ensure the app meets user requirements. As a junior team member, you'll often have opportunities to learn from code reviews, engage in collaborative problem-solving, and gradually take on more complex tasks as your skills develop. The environment is usually fast-paced and supportive, offering plenty of opportunities to grow your technical and teamwork abilities.

What are the key skills and qualifications needed to thrive as a junior Android developer?

To thrive as a Junior Android Developer, you need a solid understanding of Java or Kotlin, knowledge of Android SDK, and familiarity with RESTful APIs and basic UI/UX design principles, typically backed by a relevant degree or coursework. Experience with Android Studio, Git version control, and optionally a Google Associate Android Developer certification are commonly expected. Strong problem-solving abilities, a willingness to learn, and effective communication skills help you work well within cross-functional teams. These qualities are crucial for delivering functional mobile apps, adapting to evolving project needs, and collaborating with senior developers and designers.

What are the most commonly searched types of Android Developer jobs in Chicago, IL? The most popular types of Android Developer jobs in Chicago, IL are:
What are popular job titles related to Junior Android Developer jobs in Chicago, IL? For Junior Android Developer jobs in Chicago, IL, the most frequently searched job titles are:
What job categories do people searching Junior Android Developer jobs in Chicago, IL look for? The top searched job categories for Junior Android Developer jobs in Chicago, IL are:
What cities near Chicago, IL are hiring for Junior Android Developer jobs? Cities near Chicago, IL with the most Junior Android Developer job openings:
Junior Android Developer jobs near you
Infographic showing various Junior Android Developer job openings in Chicago, IL as of August 2026, with employment types broken down into 100% Full Time. Highlights an 100% In-person job distribution, with an average salary of $91,730 per year, or $44.1 per hour.

Senior Application Security Engineer

Tempus

Chicago, IL • On-site

$130K - $180K/yr

Full-time

Re-posted 11 days ago

Job description

Passionate about precision medicine and advancing the healthcare industry?
Recent advancements in underlying technology have finally made it possible for AI to impact clinical care in a meaningful way. Tempus' proprietary platform connects an entire ecosystem of real-world evidence to deliver real-time, actionable insights to physicians, providing critical information about the right treatments for the right patients, at the right time.
Tempus is seeking a Senior Application Security Engineer with deep expertise in penetration testing to lead efforts in identifying and remediating vulnerabilities across web, mobile, and medical device applications. You will safeguard sensitive healthcare data and ensure the security of our internal systems and software medical device (SaMD) products, supporting our mission to improve patient outcomes through secure-by-design principles.
Key Responsibilities
  • Execute advanced black-box and grey-box penetration tests on web applications, APIs (REST/GraphQL), and internal systems.
  • Perform deep-dive mobile security assessments on iOS and Android, including reverse engineering and bypassing client-side controls like root detection and certificate pinning.
  • Lead specialized security testing and threat modeling for FDA-regulated medical device software, ensuring compliance with HIPAA, GDPR, and FDA cybersecurity guidelines.
  • Develop high-quality technical reports detailing exploit chains and business logic flaws, providing engineering teams with hands-on remediation guidance.
  • Automate security testing by developing custom tools and scripts in languages such as Python, Go, or PowerShell.
  • Communicate complex security risks and business impacts to executive leadership and cross-functional stakeholders.
  • Mentor junior team members and provide security training to development teams to foster a robust culture of security awareness.
Qualifications
  • 5+ years of experience in penetration testing, ideally within healthcare or highly regulated environments.
  • Expert knowledge of web/API vulnerabilities (OWASP Top 10) and mobile testing frameworks (Frida, Burp Suite, MobSF, Ghidra).
  • Understanding of medical protocols (DICOM, HL7) and cloud security practices (AWS, Azure, or GCP).
  • Proficiency in scripting languages (Python, JavaScript/TypeScript, Go) and secure SDLC practices.
  • Excellent analytical, problem-solving, and interpersonal communication skills.
Preferred Certifications
  • Offensive Security: OSCP, OSCE, or OSWE.
  • Mobile Security: eCMAP or GMOB.
  • General/Regulated: CEH, CSSLP, GPEN, GWAPT, or UL 2900 training.

CHI: $130,000-$180,000
The expected salary range above is applicable if the role is performed from Illinois and may vary for other locations (California, Colorado, New York). Actual salary may vary based on qualifications and experience. Tempus offers a full range of benefits, which may include incentive compensation, restricted stock units, medical and other benefits depending on the position.
We are an equal opportunity employer. We do not discriminate on the basis of race, religion, color, national origin, gender, sexual orientation, age, marital status, veteran status, or disability status.

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