Back End Developer in Greater London

What is a back end developer?

Back end developers are responsible for creating and maintaining technology at the back end of a website (the server, database and application). The attractive visuals created by designers, UX professionals and front end developers couldn’t exist without the technology provided by a back end developer.

Back end developer job description and responsibilities

A backend developer works alongside front end developers, full stack developers, programmers or UX specialists to create comprehensive digital solutions for business needs. They make sure the website is scalable and that it can still function when hit by large loads—be that traffic or demanding scripts. They are also tasked with maintaining and testing existing back end elements to ensure they’re as fast and efficient as possible. Data storage also comes under their remit, which requires them to have a good knowledge of data security and compliance.

Typical duties include:

Building and maintaining web applications

Assessing the efficiency and speed of current applications

Writing high-quality code

Managing hosting environments

QA testing

Troubleshooting and debugging

Keeping on top of new technologies

Back end developer qualifications, skills and experience

Back end developers should ideally have experience working in a back end environment. Employers will be looking for a minimum requirement of a Bachelor’s degree in a related subject, such as Computer Science.

Professionals should have some or most of the following skills and experience:

Fluent in scripting languages like Ruby, PHP, .Net, C# or Java

Experience with Ruby, Laravel, Django or Express frameworks

Experience with SQL, MySLQ and Oracle database systems

Version control, such as Git, CVS or SVN

Knowledge of SOAP and REST web services

Knowledge and experience with compliance and data security is also important, especially after the implementation of GDPR. Developers should also have some of the following personal qualities:

Good problem solving skills

High attention to detail

Good analytical thinking

Excellent communication

Ability to work well as part of a team

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Salary for Back End Developer in Greater London

59750 - 97000

25th percentile

59750

The candidate has little or no prior experience in the position and is still developing relevant skills.

50th percentile

72250

The candidate has an average level of experience and has most of the necessary skills.

75th percentile

97000

The candidate has above-average experience, has most or all the necessary skills, and may have specialised qualifications.

Projected salaries for related positions

Position title

25th percentile

50th percentile

75th percentile

Head of AI

119750

209250

272750

Head of Engineering

113750

123750

152500

Head of Machine Learning

101000

119750

153000

Lead Engineer

85000

99750

110000

AI Prompt Engineer

83500

123000

153000

Machine Learning Engineer

79750

99750

126250

Machine Learning Consultant

74750

93000

110750

Artificial Intelligence Engineer

66500

87500

119750

Artificial Intelligence Consultant

54500

73250

87000

Blockchain Developer

113000

133000

173000

Fullstack Developer

57750

78500

102750

Front-End Developer

59250

74500

97000

Automation Manager

56500

66500

77250

Automation Consultant

46500

53250

61250

Robotic Process Automation Developer

49750

59750

70250

Robotic Process Automation Consultant

41250

47500

53750

Test Manager

59250

80250

103500

Applications Support

44000

63500

76750

Test Analyst/ QA

37500

49000

67750

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Your guide to negotiating salaries and offers

Our starting salary projections come from a detailed, multistep process that ensures our numbers accurately reflect the marketplace. They’re based on real compensation data for job seekers our recruiters have matched with companies across the country, in addition to 350,000 third-party vacancies data from Textkernel for independent validation.

The Salary Guide From Robert Half is the original. We’ve been publishing salary forecasts since 1950, and our guide has served as a trusted source for employers, job seekers, industry associations, government and educational institutions, and national and local media.