Senior System & Integration Architect

Project overview

Westhouse is one of the leading recruitment companies for the placement of highly qualified specialists from the entire IT lifecycle and engineering sector.

For our client, we are currently looking for a

Senior System & Integration Architect - Frankfurt and Remote

Framework Information

Your Qualifications

• Reference: 180780
• Start: 2026-12-01(ASAP)
• Duration: Initially 4-5 months concept phase, followed by implementation support
• Location: Frankfurt and Remote
• Scope of Work: full-time(100%)
• Languages: German (nice-to-have), English (must-have)
• 10+ years of experience in Enterprise/System Architecture and complex integration projects.
• Profound experience with API-led Architecture, REST APIs, Event-driven Architecture, and Enterprise Middleware.
• Very good knowledge of data modeling, cross-system data integration, and workflow orchestration.
• Experience with Salesforce integration and connecting heterogeneous backend systems.
• Experience with KPI/Monitoring architectures, Process Analytics, and technical reporting concepts.
• Demonstrable experience in technical implementation coordination and collaboration with multiple development teams.

Responsibilities

Project Context and Profile Sought

Interested?

Interested? We look forward to receiving your comprehensive CV in electronic form.

Your Contacts

Tobias Gollmann

P: [contact removed]

E: [contact removed]

• Analysis of the existing system landscape, interfaces, data flows, and integration architecture.
• Development of an E2E integration concept for Salesforce, middleware, digital input channels, and payment backend systems.
• Definition of reusable API and integration patterns, including event-driven architecture, workflow orchestration, and error handling.
• Conception of consistent data flows, status models, and cross-system IDs for onboarding, contract management, and product activation.
• Development of a KPI and monitoring architecture for E2E process transparency, throughput times, STP rates, clarification cases, and SLA control.
• Evaluation of existing data and integration platforms as well as conception of suitable event and reporting data flows.
• Transfer of the target concept into technical work packages, architectural decisions, and a prioritized implementation roadmap.
• Subsequently, technical coordination of the implementation, including interface integration, design reviews, E2E tests, and quality assurance with the client's IT teams.
• A client in the payments sector is modernizing its merchant onboarding processes with the goal of end-to-end processing that is consistent and largely automated. An experienced system and integration architect is sought to design the overarching integration architecture between Salesforce, middleware, and payment backend systems, develop a cross-system KPI and transparency concept, and subsequently coordinate the technical implementation.
• Hands-on Enterprise/System Architect with a strong integration and delivery focus. Not a pure Salesforce or BI specialist is sought, but an experienced architect who connects complex system landscapes, develops viable integration and data concepts, and coordinates their technical implementation across multiple teams.

Nice to have

• Payment, banking, or financial services experience, especially merchant onboarding.
• Knowledge of MuleSoft, Camunda, Apache Kafka, Kong API Gateway, and AWS.
• Experience with Databricks, SQL, and cloud data platforms.
• Knowledge of Process Mining, SLA monitoring, and service center integration.
• Experience with regulatory requirements for data quality, traceability, and auditability.

Project details

• Start: 2026-12-01
• Duration: Zunächst 4–5 Monate Konzeptphase, anschließend Implementierungsbegleitung
• Remote: remote
• Location: Frankfurt und Remote, DE
• Languages: German, English