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The differences between senior mobile developers and contract developers can be seen in a few details. Each job has different responsibilities and duties. It typically takes 2-4 years to become both a senior mobile developer and a contract developer. Additionally, a senior mobile developer has an average salary of $119,532, which is higher than the $91,433 average annual salary of a contract developer.
The top three skills for a senior mobile developer include java, react native and objective c. The most important skills for a contract developer are C++, javascript, and java.
| Senior Mobile Developer | Contract Developer | |
| Yearly salary | $119,532 | $91,433 |
| Hourly rate | $57.47 | $43.96 |
| Growth rate | 21% | 21% |
| Number of jobs | 96,976 | 249,808 |
| Job satisfaction | - | - |
| Most common degree | Bachelor's Degree, 49% | Bachelor's Degree, 68% |
| Average age | 39 | 39 |
| Years of experience | 4 | 4 |
A senior mobile developer specializes in designing and developing mobile systems and applications, including software and electronics. They lead different projects, oversee operations from planning to production, facilitate research and analysis, and provide guidance to junior developers. Additionally, they conduct regular assessments and develop testing procedures to optimize the quality of new and existing systems.
Contract Developers develop secure web applications for data collections, quality measurement efforts, and reporting purposes for large-scale performance, wireframes and UI specifications for interactive and static reporting and analysis features, and developing UI to interact with reporting engines. They are involved with system design and technical documentation and responsible for dot net development. In this position, contract developers must excellent in problem-solving, analytical skills and attention to detail, display and manipulate performance metrics, and highly confident dealing with internal and external clients.
Senior mobile developers and contract developers have different pay scales, as shown below.
| Senior Mobile Developer | Contract Developer | |
| Average salary | $119,532 | $91,433 |
| Salary range | Between $92,000 And $155,000 | Between $67,000 And $123,000 |
| Highest paying City | San Francisco, CA | San Francisco, CA |
| Highest paying state | California | California |
| Best paying company | First Republic Bank | Avanade |
| Best paying industry | Finance | Finance |
There are a few differences between a senior mobile developer and a contract developer in terms of educational background:
| Senior Mobile Developer | Contract Developer | |
| Most common degree | Bachelor's Degree, 49% | Bachelor's Degree, 68% |
| Most common major | Computer Science | Computer Science |
| Most common college | Massachusetts Institute of Technology | Massachusetts Institute of Technology |
Here are the differences between senior mobile developers' and contract developers' demographics:
| Senior Mobile Developer | Contract Developer | |
| Average age | 39 | 39 |
| Gender ratio | Male, 83.9% Female, 16.1% | Male, 71.5% Female, 28.5% |
| Race ratio | Black or African American, 4.6% Unknown, 4.8% Hispanic or Latino, 8.3% Asian, 29.8% White, 52.3% American Indian and Alaska Native, 0.2% | Black or African American, 4.4% Unknown, 4.8% Hispanic or Latino, 8.1% Asian, 27.8% White, 54.8% American Indian and Alaska Native, 0.2% |
| LGBT Percentage | 8% | 8% |