Staff Software Engineer - Belfast

Ocho

Belfast, United Kingdom

yesterday

Role details

Contract type

Permanent contract

Employment type

Full-time (> 32 hours)

Working hours

Regular working hours

Languages

English

Experience level

Senior

Compensation

£ 60K

Job location

Belfast, United Kingdom

Tech stack

ASP.NET

.NET

User Authentication

Automation of Tests

C Sharp (Programming Language)

Databases

Continuous Integration

Fault Tolerance

Open Web Application Security

Payment Gateway

PCI Data Security Standards

Software Engineering

Trusted Systems

Software Vulnerability Management

System Availability

Technical Debt

Backend

Job description

Own and evolve a high-throughput, security-critical payment gateway platform
Define and evolve gateway architecture across multiple services
Lead design of secure, high-availability transaction systems
Drive decisions across authentication, transaction routing, and merchant services
Identify and reduce systemic technical debt
Champion alignment with PCI DSS 4.0 requirements
Lead threat modelling and secure design reviews
Drive vulnerability remediation strategy and prioritisation
Define expectations for TDD / BDD and automated test coverage
Establish CI/CD quality gates and release confidence standards
Act as an escalation point for complex architectural decisions
Mentor Senior Engineers and grow technical leadership capability

Technologies:

Backend
C#
CI/CD
Security
TDD
ASP.NET
OWASP

We are a leading technology firm based in Belfast, offering a hybrid work environment that promotes flexibility and collaboration. Our mission is to own and evolve a high-throughput payment gateway platform vital for secure financial transactions. We prioritize our teams growth and development, providing opportunities for mentorship and technical leadership, along with competitive benefits to ensure a rewarding work experience.