Integration specialist

Techster Solutions; Stockholms kommun; On-site; SEK 900,000 - 1,200,000; Full time

Job summary

Techster Solutions is seeking an API Manager Administrator to own the design, implementation, and operations of our API and integration ecosystem across on-prem and Azure.

You will build and manage REST/SOAP/GraphQL APIs, administer the API Manager platform, and ensure secure connectivity between internal systems, external partners, and LLM services. This role emphasizes MCP, Linux, and security best practices.

Qualifications

• 4+ years of hands-on experience with API Management platforms.
• Experience designing and implementing APIs and integration flows.
• Experience with API Manager components: Gateway, Publisher, Portal, Key Manager, Traffic Manager.
• Experience integrating identity/key management providers with API Manager.
• Experience running API Manager on Linux VMs (DB, load balancers, HA).
• Working knowledge of Azure AKS (kubectl, Helm, ingress, monitoring).
• Familiarity with LLM APIs (requests, tokens, streaming, rate limits, governance).
• Strong MCP architecture, security, and troubleshooting knowledge.
• Solid knowledge of OAuth2, JWT, API security, and certificate management.
• Linux system administration skills.

Responsibilities

• Design, develop, and maintain REST/SOAP/GraphQL APIs and integration flows.
• Administer API Manager across dev, test, and production environments.
• Configure Gateway, Publisher, Developer Portal, Key Manager, and Traffic Manager.
• Onboard and govern MCP clients and servers for LLM integrations.
• Ensure secure-by-design patterns and robust error handling in integrations.

Skills

API Management

API design

Integration development

Linux administration

Azure AKS

OAuth2/JWT security

Security governance

Tools

Azure AKS

Keycloak

Okta

Job description

About the Role

We are seeking an API Manager Administrator with strong integration development experience to own the design, implementation, and operations of our API and integration ecosystem. You will build and manage APIs, administer the API Manager platform, and ensure secure, reliable connectivity between internal systems, external partners, and AI/LLM services (including MCP-based integrations) across on‑prem and Azure environments.

Key Responsibilities

Integration Development

• Design, develop, and maintain REST/SOAP/GraphQL APIs and integration flows
• Implement message transformation, orchestration, and routing using API Manager and microservices
• Develop reusable integration components (policies, mediations, templates)
• Build and integrate MCP servers and tools exposing business capabilities to LLM-based clients
• Implement robust error handling, retries, and resiliency patterns in integrations

API Platform Administration & Operations

• Administer API Manager across dev, test, and production environments
• Configure core components: Gateway, Publisher, Developer Portal, Key Manager, Traffic Manager
• Manage API lifecycle (design, versioning, publishing, deprecation) and governance policies
• Integrate identity/key management providers (e.g., Keycloak, Okta, Curity)
• Monitor and optimize API performance, throughput, and reliability

Infrastructure, LLM & MCP

• Install and maintain API Manager on Linux VMs (DB setup, load balancing, HA)
• Manage API workloads on Azure AKS (Helm, scaling, ingress, networking, observability)
• Onboard and govern LLM APIs (OpenAI, Azure OpenAI, Anthropic) via the gateway
• Design, secure, and troubleshoot MCP client–server integrations, including streaming and context management

Security, Documentation & Collaboration

• Apply API security best practices (OAuth2, JWT, API keys, mTLS, certificates)
• Ensure secure-by-design patterns for APIs and MCP endpoints
• Document APIs, integration flows, and platform configurations; maintain runbooks
• Collaborate with development, security, AI/ML, and infrastructure teams on shared solutions

Profil & Meriter

Required Qualifications

• 4+ years of hands‑on experience with API Management platforms
• Proven experience designing and implementing APIs and integration flows
• Strong understanding of API Manager components (Gateway, Publisher, Portal, Key Manager, Traffic Manager)
• Experience integrating identity/key management providers with API Manager
• Experience running API Manager on Linux VMs (DB, load balancers, HA)
• Working knowledge of Azure AKS (kubectl, Helm, ingress, VNET, monitoring)
• Familiarity with LLM APIs (requests, tokens, streaming, rate limits, governance)
• Strong understanding of MCP architecture, security, and troubleshooting
• Solid knowledge of OAuth2, JWT, API security, and certificate management
• Linux system administration skills

Nice to Have

• API Manager certifications
• Experience with Identity Server or microservices-based integration solutions
• Terraform or Bicep experience for Azure provisioning
• Knowledge of API monetization and subscription models
• Experience with custom mediators, synapse configs, or policy extensions
• MCP server development using TypeScript, Python, or Java
• Exposure to AI/ML integration patterns and tool-use protocols
• Swedish skills is a plus