OpenID Connect Expert in Frankfurt
for secure sign-in, matched in minutes with vetted and available freelancersHire experts who design identity flows, integrate OpenID Connect with OAuth 2.0 providers, and secure web or mobile applications. FRATCH matches you quickly and precisely with vetted, available freelancers for your project.
Meet FRATCH Experts in Frankfurt, who have recently used OpenID Connect
Ali A.
Last position:
Founder & Architect at Independent AI R&D
- Fully on-premises LLM document-examination platform for a compliance-critical banking domain: agentic LangGraph pipeline with deterministic verification, every AI judgment structured and source-anchored; ~960 automated tests, zero data egress
- GPU throughput engineering (quantized serving, speculative decoding, prefix caching): 9.5x extraction speed-up, 500+ multi-document case files per day on a single A100
- AI-native EDI/EDIFACT integration platform (~116k LOC Java 25 / Spring Boot 4, 1,900+ tests): LLM-drafted partner mappings machine-verified before go-live (DFDL conformance, field-coverage checks, dry runs), ~99.5% byte match on real customer files — replacing weeks of manual mapping per partner
Kevin F.
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 J.
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 T.
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 K.
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
David R.
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)
Delly F.
Last position:
Dad of 2 daughters at Family
Mojtaba G.
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 H.
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 M.
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
2.4 years (Germany: 1.9 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: 85%)
Master's degree or higher
22% (Germany: 48%)
Doctorate
11% (Germany: 6%)
Certifications per freelancer
3 (Germany: 2)
Most common languages
German, English, Arabic
Speak two or more languages
100% (Germany: 95%)
Based on our profile pool as of 19 Sep 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 19 Sep 2026. Actual rates may vary depending on seniority level, experience, skill specialization, project complexity, and engagement length.
OpenID Connect experts industry focus
See which industries our matched freelancers work in most often — every figure is calculated live from the freelancers on FRATCH.
- Information Technology (100%)
- Banking and Finance (80%)
- Transportation (60%)
- Automotive (40%)
- Energy (30%)
- Healthcare (30%)
- Insurance (30%)
- Manufacturing (30%)
Please note that freelancers can work across multiple industries, so percentages overlap.
About the technology
Identity layer
OpenID Connect is an identity protocol built on OAuth 2.0. It lets an application verify who a user is and receive trusted identity claims through an identity provider. The protocol uses ID tokens, access tokens and a standard discovery process, so applications can support sign-in without handling passwords directly.
What it enables
OpenID Connect supports consistent authentication across customer portals, workforce applications, mobile apps and service dashboards. Experts use it to connect applications to identity providers, enable single sign-on and protect APIs with clearly separated identity and access decisions.
- Configure authorization code flows for browser and mobile clients
- Map claims, scopes and user profiles to application permissions
- Connect customer identity and access management services
- Test logout, token renewal and account linking behavior
Ecosystem and tooling
The work often includes OAuth 2.0, JSON Web Tokens, JWKS endpoints, SAML federation and identity providers such as Keycloak, Microsoft Entra ID, Auth0 or Okta. Strong specialists understand discovery documents, issuer validation, redirect URI rules, PKCE, token audiences and secure secret management. They also work across application frameworks, API gateways and cloud environments.
When expertise matters
Companies bring in freelance specialists when a new product needs federated sign-in, an existing login flow must be modernized, or several applications need one identity model. Frankfurt organizations may need collaboration across financial, manufacturing, logistics and software teams, with clear communication for remote, hybrid or on-site delivery.
- Replace custom authentication with a standards-based flow
- Integrate an external identity provider without breaking existing users
- Investigate invalid tokens, consent errors or redirect failures
- Prepare federation for partners, customers or internal applications
Delivery and security
A reliable implementation starts with a documented trust model and an explicit token strategy. Professionals validate issuer, signature, audience, nonce, state and redirect values instead of treating a valid-looking token as proof of every permission. They also plan key rotation, session handling, logout behavior, monitoring and recovery before production release.
Choosing a specialist
Look for practical experience with the identity provider and application stack used by your team, not only familiarity with protocol terminology. Ask for examples of flow selection, migration planning, threat analysis and automated tests. A strong expert explains trade-offs between OpenID Connect, SAML and provider-specific APIs, and leaves behind clear configuration, runbooks and maintainable integration code.
Frequently asked questions
Quick answers to the questions that come up most around OpenID Connect.
OpenID Connect is used to authenticate users through an identity provider and return standardized identity information to an application. It is common in single sign-on, customer portals, mobile applications and services that need a consistent login experience across systems.
OpenID Connect adds an authentication and identity layer to OAuth 2.0, which primarily handles delegated authorization. OAuth 2.0 access tokens grant access to resources, while an OpenID Connect ID token communicates who authenticated and which issuer performed the authentication.
OpenID Connect is often a practical choice for modern web, mobile and API-based applications because it uses JSON and fits well with OAuth 2.0 tooling. SAML can remain appropriate for established enterprise federation, so the decision depends on existing identity providers, partner requirements and application architecture.
A strong OpenID Connect specialist should also understand OAuth 2.0, JSON Web Tokens, PKCE, SAML, identity and access management, API security and the selected identity provider. Experience with Keycloak, Microsoft Entra ID, Auth0 or Okta can be valuable when those systems are part of the environment.
The required depth depends on the risk and scope of the integration. A straightforward provider connection may need focused protocol and framework knowledge, while migrations, federation, custom claims, legacy users and regulated data call for an expert who has handled production identity systems and failure scenarios.
OpenID Connect work is well suited to remote collaboration because configuration, testing and documentation can be managed through shared repositories and secure environments. On-site sessions in Frankfurt may still help with architecture workshops, access reviews or coordination across security, product and application teams.
Ask how the specialist validates issuer, signature, audience, state, nonce, redirect URIs and token expiry. A quality implementation documents the trust relationships, protects secrets, handles key rotation and logout, limits scopes, includes negative tests and avoids using an ID token as an API authorization decision.
Before working with OpenID Connect, clarify the identity provider, client types, existing user accounts, required claims, logout expectations, API boundaries and deployment model. Also confirm who owns security decisions, how test identities are provided and whether the collaboration requires German-language communication or on-site availability in Frankfurt.
The average hourly rate of freelancers in Frankfurt, Germany who have used OpenID Connect in their recent projects is 98 €, which corresponds to a daily rate of about 784 € 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 2.4 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 
Munich Request a free demo
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FRATCH CEO
