OpenID Connect Experts in Frankfurt
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Meet FRATCH Experts in Frankfurt, who have recently used OpenID Connect
Ali Aminian
Last position:
Platform Engineer & Software Architect at Yatta GmbH
- Architected the Yatta Integration Layer – a config-driven integration platform on Java 25, Spring Boot 4 (WebFlux), Temporal, gRPC and Kafka, enabling new third-party integrations (e.g. AVS fulfillment) via declarative JSON configs with zero code changes.
- Designed and implemented Tink integration with 0Auth IBAN verification to enhance fraud prevention and account validation workflows with Adyen payByBank.
- Architected and implemented an OpenFGA-based authorization model for centralized management of users, groups, and fine-grained access control in the vendor portal.
- Architected and led delivery of the Yatta API Gateway platform using GraphQL Federation, providing a unified enterprise API layer across distributed microservices with centralized authentication, authorization and request orchestration.
- Replaced NGINX + NLB with Istio service mesh and AWS ALB; rolled out WAF, OAuth (Cognito), IP whitelisting and RBAC across environments.
- Migrated CDC from Confluent Cloud connectors to a self-hosted Kafka Connect + Debezium stack, reducing operational cost by ~80% across multiple environments.
- Implemented the Transactional Outbox pattern with Debezium for reliable, exactly-once event publishing to Kafka with Avro and Schema Registry.
- Migrated dunning/payment-recovery workflows from Airflow to Temporal, achieving 99.9% reliability for settlement handling.
- Optimised Apache Airflow with deferrable sensors to handle 1000+ concurrent DAG runs without scaling the worker pool.
- Refactored a monolithic Terraform codebase into 3 modular projects, cutting deployment time by ~45%.
- Stood up full observability with OpenTelemetry, Tempo, Prometheus and Loki; automated dev/staging/prod with ArgoCD, Image Updater and Helm.
- Collaborated with product, operations and engineering stakeholders to define scalable platform architecture and integration standards aligned with long-term business and operational goals.
Kevin Fischer
Last position:
DevOps and Platform Engineer at DB Systel GmbH
- Error analysis and fixes including performance optimization of the in-house developed platform API
- Change and incident management in day-to-day operations
- Responsible for compliance with security and compliance requirements
- Vendor management for software development and maintenance
- Planning and execution of migration of legacy services to a cloud native platform
Role in the project: project staff, implementation team
Used skills: requirements analysis, IT service and application management, IT operations, error analysis and performance optimization, software maintenance and lifecycle management
Project environment: Cloud Native Platform (Kubernetes, Crossplane, AWS, ArgoCD, Grafana)
Saqib Javed
Last position:
AI Developer / AI Engineer (Lead) at KOM4TEC GmbH
- Conceptual design and implementation of modular AI assistants for sales and business processes in the Microsoft ecosystem (Agentic AI, Copilot extensions)
- Frontend architecture and development with React + TypeScript for embedded chat and assistant surfaces (streaming UI, hooks, React Query, OpenAPI clients)
- Enterprise-level agent development: reusable skill/agent library, MCP server, review and compliance gates
- LLM integration into the user experience: Anthropic (Claude), OpenAI, tool use, RAG pipelines, prompt engineering, guardrails
- Architecture and code review consulting as well as mentoring in the AI development team
- Integration with Microsoft Graph, Power Platform, and Azure services
- Technologies: React, TypeScript, Anthropic Claude, OpenAI, MCP, RAG, Microsoft Graph, Power Platform, Azure
Khaled Teilab
Last position:
Consultant / DevOps Engineer at Dr. Ing. h.c. F. Porsche Aktiengesellschaft
- Porsche ID is a unified digital identity platform providing secure authentication and seamless access across Porsche’s online services, mobile apps, and connected vehicle features
- Designed and implemented new authentication and authorization functionalities for both users and systems
- Ensured high availability, security, and performance to deliver a flawless digital experience for Porsche customers
- Technologies: Auth0, Angular, Tailwind, AWS, Terraform, Github
- Methodologies: Scrum and SAFe
Werner Keil
Last position:
Test Coordinator, Designer and Engineer at IBM
- Testing the SekIDP and related components
- Test design, execution and automation, microservices, GitHub Enterprise, Eclipse, Katalon Test Platform, API Testing, Confluence 8, JIRA/Xray, Draw.io, Swagger/OpenAPI, Postman, Docker, Kubernetes, Podman, PuTTY, E-Health, Telematik, Gematik standards, EPA, E-Rezept, sektoraler IDP, encryption, XaDES, PaDES, DICOM, HL7, FHIR, IHE, ICD, SSO, SAML/Shibboleth, OAuth, smartcards, JWT, two factor authentication Android and iOS, Wireshark, BrowserStack, Cypress, gRPC, REST, SOAP, WS-Security, Linux Shell, PowerShell, SSH/SSL, Java, Kotlin, Cordova, Gradle, Groovy, Python, TypeScript
Delly Fofie
Last position:
Dad of 2 daughters at Family
David Rihm
Last position:
Lead Developer/Technical Architect
- Design, extension, and implementation of interfaces (REST, GraphQL, Kafka)
- Architecture and implementation of cloud-native microservices on Azure Kubernetes Service
- Domain-Driven Design, Event-Driven Architecture with Kafka
- Development of an extensive query engine for REST endpoints based on business objects
- Design and implementation of master data classification using machine learning algorithms (Weka library, Spotify Voyager)
- Analysis and evaluation of complex load test scenarios and derivation of optimizations
- Increase in system resilience (Kafka error handling, circuit breaker, sidecar service mesh in Go)
- Integration with CIAM systems (asynchronous real-time synchronization and definition of data ownership, authorization, authentication)
- Connection to Azure ServiceBus (AMQP protocol)
- Design and implementation of complex authorization concepts (including delegated administration)
- Documentation of the results (Confluence, architecture descriptions, architecture decisions)
Mojtaba Ghanaat-Pisheh
Last position:
Full-Stack Software Developer at Energy Sector
- Led and coordinated consumption and price calculations for gas and electricity forecasts to ensure accurate and reliable pricing
- Implemented modern microservices and Web APIs based on .NET 7 in an Azure environment using Azure App Service, Azure Storage, and Azure Service Bus
- Built and managed infrastructure in Azure using Terraform, including resource deployment and automation of deployment processes
- Developed and maintained Azure DevOps pipelines to optimize build, test, and release workflows
- Optimized data management with SQL Server and ensured seamless integration across all services
- Developed the front end with Angular 16, TypeScript, CSS, HTML, and Kendo UI to deliver an intuitive and engaging user interface
Stephan Heinsius
Last position:
Consultant at Freelance Consultant
- IT security audits and reviews of IT security architectures with a focus on IAM
- Creating security concepts and risk analyses for DAX companies and medium-sized businesses
- Developing cloud security strategies and reviewing core security solutions
- Designing IT security architectures including IDP integration (OAuth2/OIDC)
- Multi-project management and central program office for DAX companies
- Developing project management strategies for medium-sized businesses
- Process-oriented GDPR data analyses and action catalogs for foundations
Steffen Müller
Last position:
Principal Consulting Partner - freelancing at microfin
Discover over 15,000 top freelancers
Statistics of experts using OpenID Connect
Aggregated from the professional profiles of matched freelancers.
Experience
21 years (Germany: 20 years)
Position duration
2.6 years (Germany: 2 years)
Positions per freelancer
13 (Germany: 14)
Top business areas
Information Technology, Product Development, Project Management
Top industries
Information Technology, Banking and Finance, Transportation
Certification focus areas
Information Technology, Project Management, Audit
Bachelor's degree or higher
67% (Germany: 83%)
Master's degree or higher
22% (Germany: 53%)
Doctorate
11% (Germany: 7%)
Certifications per freelancer
3 (Germany: 2)
Most common languages
German, English, Arabic
Speak two or more languages
100% (Germany: 94%)
Based on our profile pool as of 30 Aug 2026.
Daily rate distribution
The chart shows how the daily rates of freelancers in this technology in Frankfurt are distributed, based on recent contracts on our platform. Each bar covers a rate range — its height shows how many freelancers charge within that range.
Average rates of experts in Frankfurt using OpenID Connect
Rates are based on recent contracts and do not include FRATCH margin.
The average daily rate is the mean of all daily rates from recent contracts of comparable freelancers on our platform.
The median daily rate is the middle value of all daily rates — half of comparable freelancers charge less, half charge more. Unlike the average, it is barely affected by outliers.
Calculated based on our freelancers’ daily rates as of 30 Aug 2026. Actual rates may vary depending on seniority level, experience, skill specialization, project complexity, and engagement length.
About the technology
What OpenID Connect does
OpenID Connect, often called OIDC, adds user login on top of OAuth 2.0. It lets systems confirm identity and receive profile claims through an identity provider instead of handling passwords directly. That makes sign-in cleaner for web apps, APIs, and mobile services.
Where it fits
It is common in SSO setups, customer portals, internal tools, and partner access. In Frankfurt, it often appears in finance, logistics, SaaS, and regulated enterprise environments where secure identity handoff matters.
Typical work
- Configure authorization code and PKCE flows
- Set up identity providers and relying parties
- Map claims, scopes, and user roles
- Validate ID tokens, access tokens, and sessions
- Connect SSO across apps and domains
Ecosystem skills
Strong specialists know OAuth 2.0, JWT, JWKs, and session handling. They also work with common identity systems such as Keycloak, Auth0, Microsoft Entra ID, Okta, and identity-aware gateways. Good implementation depends on careful redirect handling and token validation.
When to bring in help
Companies bring in freelance expertise when login breaks, when a legacy auth flow must be modernized, or when an app needs to trust a new identity source. They also need support when security reviews flag token handling, consent screens, or account linking.
What strong specialists deliver
- Clear authentication architecture
- Secure token and claims design
- Reliable logout and refresh logic
- Practical documentation for teams
- Support for remote or on-site work in Frankfurt when needed
Frequently asked questions
Quick answers to the questions that come up most around OpenID Connect.
OpenID Connect is used to let users sign in through a trusted identity provider and let applications verify who they are. It is the layer that turns OAuth 2.0 into a real login flow with identity claims, so teams can build SSO, account linking, and safer access control.
OIDC sits on top of OAuth 2.0. OAuth 2.0 is about authorization, while OIDC adds identity and login, including ID tokens and user claims. If a project needs authentication, not just access delegation, OIDC is usually the better fit.
A strong OpenID Connect specialist should also know OAuth 2.0, JWT, session management, and token validation. Experience with identity providers such as Keycloak, Auth0, Microsoft Entra ID, or Okta is often important. For APIs, they should understand scopes, claims, and redirect flows.
A good OIDC freelancer needs the current login flow, the identity provider choice, and the systems that must trust the token. They also need to know whether the work covers a web app, mobile app, API, or SSO rollout. Clear access to staging environments speeds up the work a lot.
OpenID Connect is often the better choice for modern web, mobile, and API-first systems. It is usually easier to integrate than SAML and fits token-based architectures more naturally. SAML still shows up in older enterprise environments, but OIDC is the cleaner option for new builds.
Most OpenID Connect work can be done remotely because it centers on configuration, testing, and code changes. On-site time in Frankfurt can help when teams need fast workshops, security reviews, or close coordination with local stakeholders. Many projects use a mix of both.
A strong OpenID Connect expert can explain the full flow without hand-waving: authorization request, token exchange, validation, session handling, and logout. Look for clean handling of nonce, PKCE, redirect URIs, and token verification. Good specialists also document edge cases and failure paths clearly.
If logins fail after identity provider changes, if users get stuck in redirect loops, or if tokens are accepted too loosely, OpenID Connect help is likely needed. Another common sign is a new app that must join an existing SSO setup without weakening security. Those are good moments to bring in a specialist.
The average hourly rate of freelancers in Frankfurt, Germany who have used OpenID Connect in their recent projects is 103 €, which corresponds to a daily rate of about 827 € based on an 8-hour working day.
Of the freelancers in Frankfurt, Germany who have used OpenID Connect in their recent projects, 67% hold at least a Bachelor's degree, 22% hold at least a Master's degree, and 11% hold a doctorate.
On average, freelancers in Frankfurt, Germany who have used OpenID Connect in their recent projects have 21 years of professional experience, with a single engagement typically lasting around 2.6 years.
The most common languages among freelancers in Frankfurt, Germany who have used OpenID Connect in their recent projects are German (100%), English (100%), and Arabic (10%).
The most common industries among freelancers in Frankfurt, Germany who have used OpenID Connect in their recent projects are Information Technology (100%), Banking and Finance (80%), and Transportation (60%).
The most common business areas among freelancers in Frankfurt, Germany who have used OpenID Connect in their recent projects are Information Technology (100%), Product Development (70%), and Project Management (60%).
Main locations of FRATCH Experts, who have recently used OpenID Connect
Our freelancers and interim experts are at home across the DACH region — available on-site in the major business hubs or fully remote. Choose a location to discover matched specialists, local market insights and up-to-date availability.
Berlin 
Hamburg 
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FRATCH CEO
