Lead .NET Integration Architect — APIs & Cloud

Lessor A/S; Lillerød; Hybrid; DKK 1,000,000 - 1,600,000; Full time

Benefits offered by this job

Hybrid work arrangement

Office in Østerbro

Job summary

Paychex Europe is modernising the platform behind Emply People. As Lead Integration Developer, you will define the technical direction for APIs and integrations while helping evolve the platform towards a cloud-native architecture.

As a senior team member, you will be hands-on, mentor colleagues, and contribute to architecture decisions within a Scrum framework. You will work with teams in Poland and Ukraine to deliver enterprise integrations.

Qualifications

• 10+ years of proven experience designing and developing enterprise applications.
• Experience modernising legacy codebases with security, performance and scalability considerations.
• Strong ownership of architecture and ability to drive critical technical decisions.
• Hands-on experience with C#/.NET, MS SQL, REST and GraphQL.
• Experience with OpenAPI modelling for API interfaces.
• Expertise in enterprise integration patterns and related trade-offs.
• Experience with Domain-Driven Design (DDD).
• Proficient with Git, Azure DevOps and Jira.
• Strong communication skills and ability to mentor engineers.
• Excellent written and spoken English.

Responsibilities

• Define integration architecture in collaboration with the Architect.
• Own integration patterns and standards.
• Design scalable APIs and integration services.
• Improve implementations, simplify codebase and promote best practices.
• Improve reliability, performance and observability.
• Guide migration toward cloud-native services.
• Mentor developers and raise engineering standards.

Skills

C#/.NET

REST

GraphQL

OpenAPI

DDD

Git

Azure DevOps

Jira

English communication

Mentoring

Tools

MS SQL

Hangfire

API design tooling

Job description

Paychex Europe is modernising the platform behind Emply People. As Lead Integration Developer, you will define the technical direction for APIs and integrations while helping evolve the platform towards a cloud-native architecture.

As a senior team member, you will be hands-on, mentor colleagues, and contribute to architecture decisions within a Scrum framework. You will work with teams in Poland and Ukraine to deliver enterprise integrations.