Mid-Level JavaScript & TypeScript Developer

J&T Business Consulting; Conwy; On-site; GBP 40,000 - 55,000; Full time

Job summary

A technology consulting firm is seeking a skilled Software Engineer with at least 3 years of proven experience. The role involves delivering high-performance applications in complex engineering environments. Candidates should have a degree in Computer Science or related fields, and proficiency with modern web frameworks like Vue.js, React, or Angular is highly desirable. Strong problem-solving skills and the ability to work independently are essential, as well as a background in multi-disciplinary teamwork.

Qualifications

• Minimum 3 years proven experience in Software Engineering.
• Demonstrated experience in delivering high-performance desktop applications.
• Understanding of system architecture, including IPC and concurrency.

Responsibilities

• Deliver high-performance software solutions in complex engineering domains.
• Work independently and manage multiple priorities under pressure.
• Collaborate with multi-disciplinary engineering teams.

Skills

Software Engineering

Problem-solving

Communication Skills

Git

Adaptability

Education

Degree in Computer Science, Software Engineering or relevant discipline

Tools

Vue.js

React

Angular

Testing Frameworks

Job description

Conwy, United Kingdom | Posted on 01/29/2026

• Minimum 3 years proven experience in Software Engineering
  
• Education to degree level in Computer Science, Software Engineering, or any company relevant discipline, i.e. geology, geophysics.
  
• Equivalent industry experience as a proven software engineer/developer will be considered.
  
• Demonstrated experience in delivering high-performance desktop applications or systems within complex engineering domains.
  
• Experience with modern WebApp frameworks, MVC or MVVM designs, complex state management and data visualization (Vue.js, react, Angular or similar).
  
• Understanding of system architecture, including IPC, concurrency, and data stream handling.
  
• Deep understanding of software design patterns (Interfaces, Inversion-Of-Control, Object Orientated vs Functional, etc) and architectural best practices (Dependency Injection, decoupling, etc).
  
• Proficiency in Git source control workflows.
  
• Excellent problem-solving and debugging skills, including extensive use of testing frameworks
  
• Ability to work independently, manage multiple priorities, and deliver under pressure
  
• Ability to learn quickly and adapt to new technologies.
  
• Requires good listening, strong written and verbal communication skills and the ability to explain technical matters in lay terms
  
• Must have initiative, self-motivation and the confidence to make decisions or ask for help.
  
• Able to showcase examples of work: public-facing products and/or open-source projects.
  
• Knowledge of geology or geophysics
  
• Experience developing software forscientific instruments, test equipment, ordata acquisition systems.
  
• Understanding of signal processing or numerical methods.
  
• Experience working in multi-disciplinary engineering teams (hardware, firmware, software, R&D, marketing).