API & Integration Engineer: Seamless System Integrations

Nordic Investin Group Aktiebolag; Stockholms kommun; On-site; SEK 700,000 - 900,000; Full time

Job summary

Nordic Investin Group Aktiebolag partners with leading companies to deliver robust API and integration solutions. The API and Integration Engineer will design REST and event-based flows, implement adapters, and ensure secure, observable integrations across cloud services and enterprise apps.

You will work with teams to define contracts, test assumptions early, and automate tests and deployments. Strong English communication and a pragmatic focus on reliability are essential.

Qualifications

• Experience in commercial integration or backend development.
• Good API design and asynchronous messaging knowledge.
• Experience in Java, .NET, Python or TypeScript.
• Working knowledge of SQL, JSON and common authentication protocols.
• Ability to investigate issues across several systems.
• Professional English and structured stakeholder communication.

Responsibilities

• Design REST and event based integration flows.
• Implement APIs, adapters and transformation logic.
• Define contracts, validation and error handling with consuming teams.
• Secure integrations using modern identity and secret management.
• Build automated integration tests and deployment pipelines.
• Monitor flows and improve recovery from partial failure.

Skills

Commercial integration experience

Backend development

API design

Asynchronous messaging

Java

NET

Python

TypeScript

SQL

JSON

Authentication protocols

Issue investigation

Professional English

Structured stakeholder communication

Job description

Nordic Investin Group Aktiebolag partners with leading companies to deliver robust API and integration solutions. The API and Integration Engineer will design REST and event-based flows, implement adapters, and ensure secure, observable integrations across cloud services and enterprise apps.

You will work with teams to define contracts, test assumptions early, and automate tests and deployments. Strong English communication and a pragmatic focus on reliability are essential.