Senior Developer

MarkIT Placements

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Farnborough, Hampshire, gb on site Until 8/22/2026 First posted March 27, 2025 Last posted March 27, 2025
Job description

My client is looking for a Senior NodeJS Developer to work on a combination of Node.JS and Javascript / AngularJS / VueJS websites and API’s, including their CRM system. 

Key Responsibilities 

 - Integration of user-facing elements developed with server side logic 

- Comfortable taking ownership and writing reusable, testable and efficient code 

- Design and implementation of low-latency, high-availability and performant applications 

- Implementation of security and data protection best practices 

- Good team worker and interested in mentoring others 

- Operate as part of a flexible Team and undertake ad hoc project work as required. 

Skills and Knowledge 

Essential 

  • Strong proficiency with JavaScript and NodeJS using ES6 techniques 
  • Understanding the nature of asynchronous programming, web sockets and event driven architecture 
  • Implement accessibility, security compliance and data protection best practices 
  • User authentication and authorization between multiple systems, servers and environments 
  • Integration of multiple data sources, API’s and databases into one system 
  • Understanding fundamental design principles behind a scalable application 
  • Strong understanding of SQL databases, such as PostgreSQL, with the ability to explain transactions, ACID compliance, various types of joins, stored procedures, trigger functions, indexing, security best practices, etc. 
  • Creating database schemas that represent and support business processes 
  • Implementing automated testing platforms and unit tests, such as AvaJS or Mocha 
  • Good understanding of front-end technologies, such as HTML5, and CSS3 along with server-side CSS preprocessors e.g. SASS or LESS 
  • Comfortable in a command-line environment and Ubuntu system administration along with experience with NPM, Gulp, Bower and Vagrant. 
  •  Proficient understanding of code versioning tools, such as Git 
  • Due to the nature of the projects, a good mathematical or financial accounting ability is desirable 
  • Must be self motivated with the ability to work independently 
BENEFITS
22 days holiday, raising to 25, plus statutory bank/public holidays Birthday Leave 
Pension Scheme 
Healthcare benefits 
Life cover 
Employee Bonus Pool 
A relaxed, committed and enthusiastic team-oriented working atmosphere


About this role

Summary

Develop and maintain scalable, secure web applications and APIs using Node.js and JavaScript.

Job title

Senior Developer

Experience level

senior level

Industry

software

Location requirements

Farnborough, Hampshire, gb; on-site work only

Salary

Not specified

Management role

No

Skills & keywords

Required skills

javascriptnodejssqlapigitunit testinghtml5css3npm

Preferred skills

angularjsvuejsweb socketsauthenticationautomation testing

Specializations

nodejsjavascriptapisecuritydatabase
Locations

Structured locations inferred from the posting.

Farnborough, UK

On-site City