Senior Full-Stack Engineer: FinTech & Microservices

ENSO Recruitment; Belfast City District; On-site; GBP 50,000 - 61,000; Full time

Benefits offered by this job

Discretionary bonus

Pension

Ongoing learning and support

Job summary

Enso Recruitment is partnering with a globally recognised technology business in Belfast to hire a Senior Full Stack Engineer. You will own the full development lifecycle, delivering scalable applications in a fintech setting with an emphasis on architecture, quality, and collaboration.

You will work in an Agile team, mentor peers, and contribute to long-term technical direction while ensuring robust CI/CD, security and performance across services.

Qualifications

• Proven track record as a full stack engineer in enterprise settings.
• Hands-on with C# and ASP.NET.
• Strong knowledge of RESTful APIs, GraphQL, and WebSockets.
• Experience with AWS and containerisation tools (Docker, Kubernetes).
• Familiar with CI/CD tooling and GitLab.
• Experience with relational databases (PostgreSQL or SQL Server).
• Experienced in Agile cross-functional delivery.
• Excellent communication with technical and non-technical stakeholders.

Responsibilities

• Build, evolve and maintain scalable full stack applications across a modern cloud-based technology estate.
• Design and maintain microservices architecture and API integrations.
• Contribute to architectural discussions and shape long-term technical direction.
• Uphold CI/CD practices, automated testing, and SDLC standards.
• Drive application performance improvements and embed security best practices.
• Investigate and resolve production issues in distributed systems.
• Mentor junior engineers and raise engineering standards across the team.
• Collaborate with Business Analysts and Product Owners to clarify complex problems and deliver solutions.

Skills

Full stack development

C#

ASP.NET

RESTful APIs

GraphQL

WebSockets

AWS

Docker

Kubernetes

CI/CD

GitLab

PostgreSQL

SQL Server

Agile

Mentoring

Tools

Docker

Kubernetes

GitLab

AWS

PostgreSQL

SQL Server

Job description

Enso Recruitment is partnering with a globally recognised technology business in Belfast to hire a Senior Full Stack Engineer. You will own the full development lifecycle, delivering scalable applications in a fintech setting with an emphasis on architecture, quality, and collaboration.

You will work in an Agile team, mentor peers, and contribute to long-term technical direction while ensuring robust CI/CD, security and performance across services.