Senior .NET Backend & API Integration Engineer

Goodman Masson; Greater London; On-site; GBP 85,000 - 125,000; Full time

Job summary

Goodman Masson partners with a leading international Wealth Management firm to accelerate backend integration and core systems delivery. The role emphasizes building robust data flows, secure APIs, and scalable services in a high-throughput environment.

You will focus on backend engineering with tight sprint timelines, leveraging C#/.NET and SQL Server expertise, and implementing CI/CD via Azure DevOps to ensure resilience and auditability.

Qualifications

• 5+ years of full stack or backend engineering experience is highly preferred.
• Prior experience within Financial Services (Wealth Management, Asset Management, or Banking) is strongly preferred.
• Exceptional coding capability in C#/.NET with strong SQL Server (T‑SQL) proficiency.
• Experience building scalable APIs and working with event-driven data architectures.

Responsibilities

• This role focuses on backend integration projects to meet tight deadlines.
• Own design, maintenance, and execution of data flows and integration pipelines.
• Build and consume production-grade, secure RESTful APIs and backend services.
• Handle complex database tasks with high-throughput SQL Server work.
• Apply CI/CD practices using Azure DevOps to keep systems secure and auditable.

Skills

C# / .NET

SQL Server (T‑SQL)

RESTful APIs

Data integration

API design

Event-driven architectures

RabbitMQ / Kafka

CI/CD pipelines

Azure DevOps

Security & auditability

Education

Tools

Azure DevOps

SSMS / SQL tooling

Job description

Goodman Masson partners with a leading international Wealth Management firm to accelerate backend integration and core systems delivery. The role emphasizes building robust data flows, secure APIs, and scalable services in a high-throughput environment.

You will focus on backend engineering with tight sprint timelines, leveraging C#/.NET and SQL Server expertise, and implementing CI/CD via Azure DevOps to ensure resilience and auditability.