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Careers

Mobile Defense is a passionate company that values creativity, intelligence, and teamwork. We hire smart, well-rounded people who thrive in a fast-paced, startup environment.

We are always looking for talented people to add to our team. If you are interested in joining us then send your resume to careers@mobiledefense.com, even if you do not think you are an exact fit for any of the positions listed below.


Available Positions

All current positions are based out of our Cleveland, Ohio offices. Local applicants and those willing to relocate are preferred. However, exceptions will be made for outstanding candidates.

Mobile Defense considers all applicants for available positions without regard to race, color, religion, marital status, physical ability, national origin, sex, sexual orientation, age, disability or veteran status.

Why Mobile Defense?

  • Work with smart, passionate people on interesting and challenging problems
  • Enjoy a fun startup environment with no bureaucracy
  • We offer competitive salaries, health, dental, 401K matching, and performance rewards
  • Fitness membership, Internet, and mobile phone subsidy
  • Mentoring and knowledge sharing is ingrained in our culture
  • We provide education reimbursements for certifications and degrees
  • Free food and drinks, 28" widescreen monitors, and nice furniture
  • Work on meaningful technology that helps keep millions of people around the world safe

Mobile Defense has won several awards, including Best Security App for the Android platform and has been featured in online publications, such as PC World, CNET, MobileCrunch, and PC Magazine.


Web and Mobile UI/UX Designer

Mobile Defense has cultivated a fast-paced, agile development environment where creativity and teamwork are paramount.

We are looking for a positive, take-charge individual to join our growing team as a Web and Mobile Designer. In this role, you will work closely with our development team to lead the design and creation of a cohesive look, flow and overall user experience of our web and mobile products. We are seeking a designer with an outstanding portfolio and ability to implement their designs.

Candidates must be driven by aesthetic details and user interaction. Responsibilities will include immediate and far-reaching design decisions that will be seen and used by millions of people every day. Candidates must have exceptional communication skills, the ability to manage multiple tasks efficiently, excellent judgment, and the ability to be productive in a fast-paced, team-oriented environment.



You will be responsible for:
  • Designing clean, pixel perfect interfaces for our website and mobile products
  • Storyboarding experiences and wire framing interfaces for our web and mobile products
  • Designing art assets for our products, partners, and marketing collateral
  • Working with developers to track, measure, and optimize user interfaces and experience
  • Working with management to quickly prototype ideas
  • Championing our brand and design process throughout the company
We need you to have:
  • Strong portfolio of previous web and/or mobile work
  • Ability to manage and prioritize many tasks at a time
  • Experience with Adobe Create Suite 5+ (e.g., Photoshop, Illustrator)
  • Experience with front-end web technologies (e.g., HTML, CSS)
  • Passion for simplicity and a deep curiosity of what makes apps sticky
  • Exceptional collaborative, written, and verbal communication skills
  • Flexibility with changing job requirements as the company and team grows
  • 3+ years of professional web and/or mobile design experience
We hope you have:
  • Willingness to work flexible hours
  • Willingness to participate in mentoring and skills transfer among team members
  • Experience working with Ruby on Rails views
  • Experience working with HAML and SaaS
  • Experience with Javascript frameworks, preferably jQuery

If you are interested in joining us, send your resume to careers@mobiledefense.com


Operations Engineer

Mobile Defense is pioneering new architectures and deployment strategies to scale petabytes of data and build fully automated environments.

We are looking for an Operations Engineer to help us maintain and expand our cloud infrastructure, currently serving millions of users. Candidates must have exceptional communication skills, the ability to manage multiple tasks efficiently, excellent judgment, and the ability to be productive in a fast-paced, team-oriented environment.

You will be responsible for:
  • Collaborating with software engineering to design robust, scalable server infrastructure
  • Monitoring the performance and uptime of applications and underlying systems
  • Managing and scaling infrastructure as the company grows and evolves
  • Discovering and implementing ways to improve operational practices and procedures
We need you to have:
  • Interest in learning new technologies quickly
  • Unix or Linux systems experience
  • Experience building and managing enterprise level infrastructures
  • Passion for systems automation and high scalability
  • Experience working with configuration management tools (e.g., Chef and Puppet)
  • Experience with scripting languages (e.g., Ruby, Python, Bash, etc.)
  • Flexibility with changing job responsibilities and requirements
  • Exceptional collaborative, written, and verbal communication skills
  • Ability to manage and prioritize many tasks at a time
We hope you have:
  • Willingness to work flexible hours
  • Willingness to participate in mentoring and skills transfer among team members
  • Experience with Git for version control

Talent Acquisition Associate

We are currently looking for a self-motivated and enthusiastic individual to join our company. Like the rest of our team, this person will wear multiple hats, playing an important role in various functions of our business. Our current needs are related to talent acquisition and administration.

You will be responsible for:
  • Proactively source, access, recruit and close top talent for engineering, development and operations roles.
  • Conduct initial interviews and coordinate technical interviews with appropriate members of our team.
  • Coordinate and participate in recruiting events such as university career fairs and events run by student organizations.
  • Identify and continually improve strategies for attracting passive candidates and retaining top talent.
  • Maintain knowledge of product and technologies to best inform candidate
  • Assist in administrative duties such as planning and scheduling meetings, replying to emails and doing regular research to ensure the company’s success
We need you to have:
  • Ability to manage and prioritize many tasks at a time
  • Effective oral and written communication skills
  • Ability to adapt to changing responsibilities and an evolving role with our team
  • Strong candidate sourcing and relationship building skills
  • Ability to work with various employees and foster teamwork
  • Ability to gather and analyze information skillfully
  • Strong ethical character with high integrity
We hope you have:
  • Ability to work in ambiguous situations and be a self-starter
  • Flexibility: task management, priorities, work environment
  • Resourcefulness and initiative in dealing with daily assumptions
  • Ability to identify and resolve problems in a timely manner

If you are interested in joining us, send your resume to careers@mobiledefense.com


Security Engineer

Mobile Defense is proud to be on the cutting edge of mobile security technology.

We are looking for someone with strong analytical and problem solving skills, who has a passion for learning and taking on new challenges. Candidates must have exceptional communication skills, the ability to manage multiple tasks efficiently, excellent judgment, and the ability to be productive in a fast-paced, team-oriented environment. Prior experience with mobile security and/or reverse engineering is a big plus.

You will be responsible for:
  • Designing, implementing, and maintaining client and server-side security applications
  • Researching and staying current on mobile security threats
  • Ensuring design, development, and implementation processes adhere to security protocols
  • Working with the team to continuously develop and refine internal security standards
We need you to have:
  • Experience with malware analysis
  • Experience with reverse engineering techniques
  • Experience with various types of cryptography (e.g., block ciphers, hashing algorithms)
  • Experience using debuggers and disassemblers (e.g., IDA Pro)
  • Ability to manage and prioritize many tasks at a time
  • Exceptional collaborative, written, and verbal communication skills
We hope you have:
  • Willingness to work flexible hours
  • Willingness to participate in mentoring and skills transfer among team members
  • Experience with Dalvik, Java, Ruby, C, ARM assembly and x86 assembly
  • Experience with binary patch diffing (e.g., BinDiff)
  • Experience with fuzz-testing
  • Experience working with mobile platforms
  • Experience with Git for version control

If you are interested in joining us, send your resume to careers@mobiledefense.com


Rails Developer

Mobile Defense has cultivated a fast-paced, agile development environment where creativity and teamwork are paramount.

We are looking for positive, take-charge individuals to join our growing team as a Rails Developer. Candidates must have exceptional communication skills, the ability to manage multiple tasks efficiently, excellent judgment, and the ability to be productive in a fast-paced, team-oriented environment. Prior experience with mobile security is a big plus.

You will be responsible for:
  • Designing, implementing, and maintaining applications
  • Unit-testing code for robustness, including edge cases, usability and general reliability
  • Re-factoring and improving maintainability of existing code base
  • Rapidly fixing bugs and solving problems
  • Conducting design and code reviews
  • Making disciplined use of source control and bug tracking systems
  • Participating in resolving customer support issues as needed
We need you to have:
  • Ability to manage and prioritize many tasks at a time
  • Ability to push the envelope for performance and reliability
  • A disciplined approach to development, testing, and quality assurance
  • Experience practicing agile development methodologies
  • Exceptional collaborative, written and, verbal communication skills
  • Flexibility with changing job requirements as the company and team grows
  • 2+ years of Ruby Experience
  • 2+ years of Rails Experience
  • Experience with front-end web technologies (e.g., HTML, CSS, Javascript, AJAX, JSON))
  • Experience with Javascript frameworks, preferably jQuery
  • Experience with MySQL and relational database design
We hope you have:
  • Willingness to work flexible hours
  • Willingness to participate in mentoring and skills transfer among team members
  • Experience with various programming languages (e.g., Java, C/C++)
  • Experience with NoSQL solutions, such as Redis or MongoDB
  • Experience with TDD/BDD frameworks, such as Rspec and Cucumber
  • Experience with Git for version control

If you are interested in joining us, send your resume to careers@mobiledefense.com


Software Engineer - Mobile

Mobile Defense has cultivated a fast-paced, agile development environment where creativity and teamwork are paramount.

We are looking for positive, take-charge individuals to join our growing team as a Mobile Developer. We have multiple positions available for Android, BlackBerry, iOS, and Windows Developers. Candidates must have exceptional communication skills, the ability to manage multiple tasks efficiently, excellent judgment, and the ability to be productive in a fast-paced, team-oriented environment. Prior experience with mobile security is a big plus.

You will be responsible for:
  • Designing, implementing, and maintaining applications
  • Unit-testing code for robustness, including edge cases, usability and general reliability
  • Re-factoring and improving maintainability of existing code base
  • Rapidly fixing bugs and solving problems
  • Conducting design and code reviews
  • Making disciplined use of source control and bug tracking systems
  • Participating in resolving customer support issues as needed
We need you to have:
  • Ability to manage and prioritize many tasks at a time
  • Ability to push the envelope for performance and reliability
  • A disciplined approach to development, testing, and quality assurance
  • Experience practicing agile development methodologies
  • Exceptional written and verbal communication skills
  • Flexibility with changing job requirements as the company and team grows
Android Developer

  • 3+ years of Java development experience
  • 1+ years of development experience on the Android platform
Blackberry Developer

  • 3+ years of Java development experience
  • 1+ years of development experience on the Blackberry platform
iOS Developer

  • 2+ years of Objective-C development experience
  • 1+ years of development experience on the iOS platform
Windows Developer

  • 1+ years of C# development experience
  • 1+ years of development experience on the Windows Mobile platform
We hope you have:
  • Willingness to work flexible hours
  • Willingness to participate in mentoring and skills transfer among team members
  • Experience with various programming languages (e.g., Java, C/C++, etc.)
  • Experience with Git for version control

If you are interested in joining us, send your resume to careers@mobiledefense.com


Support Engineer

Mobile Defense is committed to providing industry-leading customer support, and we actively encourage our users to contact us with their questions, suggestions and concerns.

We are looking for someone who can help us provide an exceptional customer experience with friendly, prompt, and effective service. As a Support Engineer you will be interfacing and building relationships with our customers on a daily basis, so a positive attitude and an outgoing personality are must-haves.

You will be responsible for:
  • Managing questions and incidents reported by customers
  • Keeping the rest of the team informed of major incidents and resolution strategies
  • Representing the customer viewpoint when working with the rest of the team
  • Communicating product updates and releases to customers through various mediums
  • Developing help and tutorial resources
  • Documenting customer support workflows and processes
We need you to have:
  • A fun, outgoing, resilient personality
  • An ability to empathize with users and see our product from their perspective
  • Exceptional collaborative, written, and verbal communication skills
  • Strong organizational skills
  • The ability to manage and prioritize multiple tasks
  • Flexibility with changing job requirements as the company and team grows
We hope you have:
  • Willingness to work flexible hours
  • Front-line support experience, particularly with web-based or mobile applications
  • Quality assurance and testing experience

If you are interested in joining us, send your resume to careers@mobiledefense.com


Internship and Apprenticeship

If you are currently attending college and would like to apply for seasonal work we have internship and apprenticeship positions available for each of the jobs listed above. You will work with members of our team to complete various projects during your time with us. It is a great opportunity to get real world experience working with cutting-edge technology.

If you are interested in joining us, send your resume to careers@mobiledefense.com