Mid/Senior Full Stack Software Engineer – React/Javascript

Solas IT Recruitment; Leinster; On-site; EUR 90,000 - 120,000; Full time

Job summary

Solas IT Recruitment has a mid-senior level opportunity for a Full Stack Software Engineer to join a financial technology team in Ireland. The role emphasizes front-end development (about 70%) with back-end engineering (about 30%), delivering real-time trading applications.

The candidate will design modern web interfaces, build scalable backend services in Java, and integrate REST APIs and WebSocket streams in a fast-paced Agile environment.

Qualifications

• 5+ years' commercial software engineering experience.
• Experience building modern web applications with React and TypeScript.
• Backend experience in Java and designing REST APIs with WebSocket support.

Responsibilities

• Design and develop modern, responsive web applications using React and TypeScript.
• Build intuitive user interfaces capable of handling real-time data.
• Develop scalable backend services using Java.
• Design and integrate RESTful APIs and WebSocket services for live data streaming.
• Work with relational databases such as PostgreSQL and MySQL.

Skills

React

TypeScript

Java

REST APIs

WebSockets

PostgreSQL

MySQL

Git

Python

Agile

Tools

PostgreSQL

MySQL

Job description

**Relocate to Ireland** – company assisted relocation

What’s on offer - Excellent Salary + Outstanding Bonus + Exceptional Benefits

About the Company

Our client is a globally recognised financial technology organisation at the forefront of their market. They develop high-performance, low-latency software that powers sophisticated trading platforms used across international financial markets. With technology at the heart of the business, you'll be joining a collaborative engineering environment where innovation, technical excellence and continuous improvement are genuinely valued.

The Opportunity

This is an exceptional opportunity for a talented Mid-Senior Full Stack Software Engineer to join a highly regarded engineering team building the next generation of real-time trading applications. Unlike many Full Stack positions, this role has a strong emphasis on creating modern, intuitive user experiences, with approximately 70% of your time focused on Front End development and 30% on Back End engineering.

What You’ll Be Doing

• Design and develop modern, responsive web applications using React and TypeScript.
• Build intuitive user interfaces capable of handling complex real-time data.
• Develop scalable backend services using Java.
• Design and integrate RESTful APIs and WebSocket services for live data streaming.
• Build high-performance applications capable of processing large volumes of real-time information.
• Work with relational databases including PostgreSQL and MySQL.
• Contribute to architecture discussions and continuously improve software quality, performance and scalability.
• Collaborate within an Agile engineering environment focused on delivering high-quality software.

We're looking for engineers who are passionate about building exceptional software and enjoy solving technically challenging problems.

You’ll ideally have:

• 5+ years' commercial software engineering experience.
• Commercial backend development experience using Java.
• Experience designing and consuming REST APIs and WebSockets.
• Experience working with SQL databases such as PostgreSQL or MySQL.
• Solid understanding of object-oriented programming and software design principles.
• Experience using Git and modern development practices.
• Python experience would be beneficial.
• An interest in financial markets or trading technology would be advantageous.