Senior Back End Engineer

VanRath; Belfast; Hybrid; GBP 50,000 - 75,000; Full time

Job summary

A leading company in financial technology seeks a Senior Back-End Software Engineer to join their Belfast team. In this role, you will develop cloud-native systems and APIs, working closely with architects and leading younger developers. This position promises a supportive environment focused on your technical growth and offers a competitive salary package.

Benefits

Private healthcare

Strong pension

Annual bonus scheme

Opportunity for technical growth

Hybrid working arrangements

Qualifications

• Commercial experience developing in C#/.NET Core required.
• Strong understanding of cloud-native systems desirable.
• Experience designing RESTful APIs and relational databases preferred.

Responsibilities

• Design and develop scalable, distributed systems.
• Develop and maintain APIs and data integrations.
• Mentor colleagues and contribute to Agile processes.

Skills

C#/.NET Core

Event-driven architecture

RESTful APIs

Relational databases

Cloud platforms (AWS or Azure)

Testing and debugging

Excellent communication

Job description

Senior Back-End Software Engineer

Location: Belfast (Hybrid Working)
Job Type: Full-Time, Permanent
Sector: Technology - Financial Services
Recruiter: VANRATH (advertising on behalf of a global client)
Salary: Excellent salary + bonus + comprehensive benefits package

The Opportunity

VANRATH are delighted to be partnering with a global organisation to recruit a Senior Back-End Software Engineer for a key role within their Belfast-based engineering team. This is a fantastic opportunity to join a company at the forefront of financial technology, contributing to the development of cutting-edge, cloud-native platforms that support global trading and data services.
You'll be part of a collaborative, Agile team responsible for delivering business-critical systems with a focus on scalability, performance, and continuous improvement.

The Role

As a Senior Back-End Software Engineer, you will play a vital role in designing and building distributed, event-driven systems in a cloud environment. You'll work closely with architects and product owners, lead by example in engineering best practices, and support more junior developers within the team.

Key Responsibilities

• 
  Design and develop scalable, distributed systems using modern engineering principles
• 
  Develop and maintain APIs (REST, GraphQL) and data integrations
• 
  Contribute to the continuous delivery pipeline and cloud infrastructure
• 
  Take ownership of key features, ensuring timely and high-quality delivery
• 
  Support Agile delivery through active involvement in planning, reviews, and retrospectives
• 
  Mentor colleagues and contribute to a collaborative team culture
• 
  Proactively identify and resolve technical and delivery challenges

Essential Criteria

• 
  Commercial experience developing in C#/.NET Core
• 
  Strong understanding of event-driven architecture and cloud-native systems
• 
  Experience designing and building RESTful APIs
• 
  Hands-on experience with relational databases (e.g., SQL Server, MySQL)
• 
  Proven ability to work across the full software development lifecycle
• 
  Familiarity with cloud platforms such as AWS or Azure
• 
  Strong testing and debugging skills with a focus on code quality and maintainability
• 
  Excellent communication skills and ability to work in a collaborative team environment

Desirable Experience

• 
  Knowledge of WPF application development
• 
  Exposure to financial services or trading systems
• 
  Understanding of the FIX protocol
• 
  Experience with AWS services and cloud automation
• 
  Knowledge of Java, JavaScript, or React
• 
  Familiarity with microservices and serverless architecture
• 
  Experience with TDD, BDD, or similar test-first methodologies

What's on Offer

• 
  Competitive base salary
• 
  Annual bonus scheme
• 
  Private healthcare and strong pension
• 
  Hybrid working (Belfast-based team)
• 
  Opportunity to work on high-impact, globally used systems
• 
  Supportive environment focused on technical growth and career progression

How to Apply

To find out more or to apply in complete confidence, please reach out to VANRATH or submit your CV using the link provided.
VANRATH is acting as an employment agency on behalf of our client. All applications will be treated with the strictest confidentiality.