Senior Front-End Engineer

Senior Front-End Engineer

Posted 1 week ago by Caspian One

£950 Per day
Undetermined
Undetermined
London Area, United Kingdom

Summary: The Senior Front-End Engineer role is focused on developing high-performance financial desktop applications within an investment bank. The position requires expertise in modern JavaScript and interoperability standards, with a strong emphasis on real-time solutions. The role offers an initial contract with the potential for permanent conversion to a higher-level position based on experience. Candidates should be prepared to work in a collaborative and agile environment.

Key Responsibilities:

  • Develop front-end components for high-performance desktop applications.
  • Implement asynchronous JavaScript patterns for real-time, event-driven systems.
  • Work with OpenFin APIs for window management and inter-application messaging.
  • Ensure interoperability between applications using FDC3 standards.
  • Optimize performance and troubleshoot complex issues in production environments.

Key Skills:

  • Advanced proficiency in JavaScript, with strong knowledge of asynchronous programming (Promises, async/await, event-driven architecture).
  • Hands-on experience with OpenFin APIs.
  • Understanding of FDC3 protocols for secure, standardised communication.
  • Strong debugging and performance optimisation skills.
  • Familiarity with REST APIs and JSON.

Salary (Rate): £950/day

City: London

Country: United Kingdom

Working Arrangements: undetermined

IR35 Status: undetermined

Seniority Level: Senior

Industry: IT

Detailed Description From Employer:

Senior Front-End Engineer

Location: London (open to Poland)

Type: Initial Contract - with high potential for permanent conversion to Associate Director or Director level depending on experience

Duration: 6 months + conversion to perm

Rate: up to £950/day (London)

Company: Investment Bank

We are looking for an experienced Front-End Engineer to join a high-performing team building cutting-edge financial desktop applications. This role focuses on delivering robust, real-time solutions using modern JavaScript and interoperability standards.

Key Responsibilities:

  • Develop front-end components for high-performance desktop applications.
  • Implement asynchronous JavaScript patterns for real-time, event-driven systems.
  • Work with OpenFin APIs for window management and inter-application messaging.
  • Ensure interoperability between applications using FDC3 standards.
  • Optimize performance and troubleshoot complex issues in production environments.

Required Skills:

  • Advanced proficiency in JavaScript, with strong knowledge of asynchronous programming (Promises, async/await, event-driven architecture).
  • Hands-on experience with OpenFin APIs.
  • Understanding of FDC3 protocols for secure, standardised communication.
  • Strong debugging and performance optimisation skills.
  • Familiarity with REST APIs and JSON.

Ideal Candidate:

  • Experienced in building complex, real-time front-end systems.
  • Comfortable working in agile, collaborative environments.
  • Interested in financial technology and interoperability standards.

Nice to have:

  • React.JS and .Net or Java