Senior Frontend Developer (Hybrid)

InnoWave; City Of London; Hybrid; GBP 50,000 - 70,000; Full time

Job summary

A technology company is looking for a Senior Front-end Developer to work in a hybrid environment based in Osterley, UK. The role requires strong skills in React, NextJS, and TypeScript, as well as expertise in application testing. Candidates must have a degree in Informatics Engineering or Computer Science and experience of 5+ years. The position also involves maintaining existing systems and working closely with other teams.

Qualifications

• Minimum of 5 years work experience in similar roles.
• Strong background in application testing including various testing methodologies.
• Willingness to participate in a rotational on-call schedule for 24/7 production support.

Responsibilities

• Research, design, implement, and manage software programs.
• Test and evaluate new programs.
• Maintain and upgrade existing systems.

Skills

React

NextJS

TypeScript

GraphQL

Styled Components

Playwright

Web performance optimization

Application testing

English (fluent)

Education

Degree in Informatics Engineering or Computer Science

Job description

InnoWave is looking for a dynamic and agile Senior Front-end Developer with experience in testing to join our team. This is a hybrid position for a client in the UK.

Responsibilities

• Researching, designing, implementing, and managing software programs
• Testing and evaluating new programs
• Identifying areas for modification in existing programs and subsequently developing these modifications
• Writing and implementing efficient code
• Determining operational practicality
• Developing quality assurance procedures (automated tests)
• Deploying software tools, processes, and metrics
• Maintaining and upgrading existing systems
• Working closely with other teams

Skills

• Degree in Informatics Engineering, Computer Science or similar areas
• Minimum of 5 years work experience in similar roles
• Advanced experience with React, NextJS, and TypeScript
• Strong background in application testing, including unit, mocked functional, end-to-end (e2e), smoke, and visual regression testing, with a solid understanding of the testing pyramid
• Proficiency with GraphQL, Styled Components, and Playwright
• Experience in production monitoring, alerting, and building resilient front-end systems
• Deep understanding of web performance optimization and best practices
• Familiarity with Redux is a plus, as some legacy code still relies on it
• Willingness to participate in a rotational on-call schedule for 24/7 production support (approximately 1 week every 2 months, with a few calls per week)
• Fluent in English - written and spoken (mandatory)
• Role requires on-site presence in Osterley (just west of London) at least twice a week

InnoWave gives equal opportunity in employment regardless of gender, gender identity, sexual orientation, marital status, race, nationality, religion, age, disability, political beliefs, or any other factor.

InnoWave will not pay fees to any third-party agency or company that does not have a signed agreement, do not submit resumes/CV's directly.

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