Senior Integration Developer/ Architect
A hands-on architect-level role designing and building API-led, event-driven integration solutions for a major financial services client, using C#/.NET Core and Azure (Functions, Logic Apps, Service Bus, API Management). Includes owning HLD/LLD design docs, CI/CD via Azure DevOps, and L3 production support in a regulated banking environment.
- Compensation
- Not disclosed
- Location
- United States
- Work setup
- Remote
- Seniority
- Senior
- Employment
- Contract
- Experience
- 8+ years
- Category
- Architecture
- Posted
Skills
Must have
- 8+ years' experience in software development with hands-on integration and API development and proven solution-design ownership
- C# / .NET Core
- HLD/LLD authoring and UML-based design (Draw.io or equivalent)
- Software and integration design patterns, with ability to explain design decisions and trade-offs
- Event-driven architecture and messaging, including reliability patterns (retries, dead-letter queues, idempotency)
- Azure Integration Services: Function Apps, Logic Apps, Service Bus, and API Management
- Database and performance optimisation: indexing, execution plans, and query tuning
- Azure DevOps and Git
- CI/CD practices and automated deployment
- Agile / Scrum delivery
Full description
Category: IT Services
Location:
Role Overview
Integrellais seeking an experienced Senior Integration Developer/Architectto join our growing offshore team, supporting a major financial services client. Working within Agile delivery teams, you willbe responsible forthe full lifecycle of integration solutions, from design and development through to deployment and production support, across both Change-the-Bank and Run-the-Bank activities.
You will design and build robust, secure, API-led integration solutions using C# / .NET and the Microsoft Azure stack, own solution architecture and technical design, from HLD/LLD through design patterns and trade-offdecisions, andprovide ongoing production support to ensure the stability and performance of business-critical systems in a regulated banking environment.
This is a design-led role. We are looking for a senior engineer whooperatesat architect level, comfortable owning end-to-end solution design, applying design patterns and articulating design decisions, whileremainingfully hands-on with development and production support.
Key Responsibilities
Solution Architecture & Design
- Own andauthorHigh-Level Design (HLD) and Low-Level Design (LLD) documentation for integration solutions.
- Create UML diagrams (sequence, flow,component) using Draw.io or equivalent.
- Define integration patterns and drive overall solution architecture, making and clearly articulating design decisions and trade-offs.
- Apply established software and enterprise integration designpatterns, andguide their consistent use across solutions.
- Design event-driven and messaging architectures with proven reliability patterns (retries, dead-letter queues, idempotency, circuit breakers).
Development & Engineering
- Design and develop integration solutions, APIs, and workflows using C# / .NET Core and API-based architecture.
- Implement event-driven, asynchronous, and messaging-based integration patterns.
- Apply API design best practice (contract-first design, versioning, security) and manage APIs through Azure API Management.
- Design andoptimiseserverless workloads (Azure Functions), including scaling, performance, and cost considerations.
- Optimisedatabases for performance, including indexing strategies, execution plans, and query tuning (Azure SQL / Entity Framework).
- Enhance andmaintainexisting systems and interfaces.
- Ensure adherence to coding standards and secure development practices.
DevOps & Deployment