OpenID Connect Expert in Frankfurt
for secure identity flows, matched with vetted specialists in minutesHire experts who integrate OpenID Connect with OAuth 2.0, identity providers and enterprise applications, while delivering reliable login, consent and token flows. FRATCH matches you quickly with precise, vetted and available freelancers.
Meet FRATCH Experts in Frankfurt, who have recently used OpenID Connect
Saqib J.
Last position:
AI Developer / AI Engineer (Lead) at KOM4TEC GmbH
- Designed and implemented modular AI assistants for sales and business processes within 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 servers, 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, and mentoring within 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
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)
Mojtaba G.
Last position:
Full-Stack Software Developer at Energiebereich
- Led and coordinated consumption and price calculations for gas and electricity forecasts to ensure accurate and reliable price determination
- Implemented modern .NET 7-based microservices and Web APIs in an Azure environment using Azure App Service, Azure Storage and Azure Service Bus
- Created and managed infrastructure in Azure using Terraform, including resource provisioning and the 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 frontend with Angular 16, TypeScript, CSS, HTML and Kendo UI to provide an intuitive and engaging user interface
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)
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
Delly F.
Last position:
Dad of 2 daughters at Family
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: 86%)
Master's degree or higher
22% (Germany: 50%)
Doctorate
11% (Germany: 6%)
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 29 Oct 2026.
Daily rate distribution
The chart shows how the daily rates of experts in this technology in Frankfurt are distributed, based on recent contracts on our platform. Each bar covers a rate range — its height shows the share of experts charging 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 29 Oct 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, often called OIDC, is an identity protocol built on OAuth 2.0. It lets an application verify who a user is and receive standardized identity information through an ID token. Companies use it to provide single sign-on without handling every authentication detail themselves.
Core Flows
OIDC specialists design authorization flows that fit web, mobile and service-based applications. They select the right response mode, scopes and claims, then validate issuer, audience, nonce, state and token signatures. Strong implementations protect both the login journey and the session that follows it.
- Configure authorization code flows with PKCE
- Validate ID tokens and access tokens
- Map claims to application roles and permissions
- Handle logout, refresh and consent behavior
Providers And Tools
OpenID Connect works with identity providers such as Microsoft Entra ID, Okta, Auth0, Keycloak and Amazon Cognito. Professionals also work with OIDC client libraries, JSON Web Tokens, JWKS endpoints and OAuth 2.0 resource servers. The surrounding stack may include API gateways, session stores and directory services.
Where It Fits
OIDC supports customer portals, employee applications, partner access, mobile apps and APIs that need delegated authorization. It can connect several applications to one identity provider while preserving consistent claims and access rules. In Frankfurt, specialists may support financial, logistics, industrial and software organizations, remotely or alongside local teams.
- Replace custom login systems
- Connect applications to workforce identity
- Add social or customer identity sign-in
- Secure APIs behind a central identity layer
When To Hire
Bring in freelance expertise when a migration from SAML or a proprietary login system affects several applications. Specialists can help when tokens are rejected unexpectedly, claims differ between environments, or an identity provider must serve multiple tenants. They are also useful for threat reviews, provider selection and production rollout.
What Quality Looks Like
Strong professionals understand both protocol details and application security. They document trust relationships, redirect URIs, scopes, claims, key rotation and failure handling instead of treating the identity provider as a black box. They test replay protection, logout behavior, expired keys and authorization boundaries, then explain the design clearly to security and product teams.
Frequently asked questions
Quick answers to the questions that come up most around OpenID Connect.
OpenID Connect is used to authenticate users and share verified identity information with applications. It commonly supports single sign-on for web apps, mobile apps, customer portals and APIs, while OAuth 2.0 handles delegated access to protected resources.
OpenID Connect adds an identity layer on top of OAuth 2.0. OAuth 2.0 grants access to resources, while OIDC lets an application confirm the user’s identity through an ID token and standardized user claims.
OpenID Connect is usually a strong fit for modern web, mobile and API integrations because it uses JSON and fits OAuth 2.0 flows. SAML remains common in established enterprise environments, so the right choice depends on existing providers, applications and integration requirements.
A capable OpenID Connect specialist should also understand OAuth 2.0, JWT validation, public-key cryptography, HTTP security and access-control design. Experience with identity providers such as Keycloak, Microsoft Entra ID, Okta or Auth0 is valuable when the work spans several systems.
The required experience depends on the scope and risk of the integration. A simple client connection may need focused protocol knowledge, while a multi-tenant migration or identity platform requires proven experience with token validation, key rotation, claims design, testing and incident handling.
OpenID Connect projects are often suitable for remote collaboration because configuration, code review and testing can be handled through shared repositories and secure environments. On-site workshops in Frankfurt can still help when teams need to align on identity architecture, compliance processes or legacy integrations.
Ask how the professional validates issuer, audience, nonce, state, signature and key rotation, rather than accepting tokens without checks. A strong OpenID Connect specialist can explain threat scenarios, document redirect URIs and claims, and show how failures are tested across environments.
OpenID Connect can replace much of a custom login flow by delegating authentication to a trusted identity provider. The application still needs careful session management, authorization rules, account linking and logout handling, so a migration should include an assessment of existing users and permissions.
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.
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Hamburg 
Munich Request a free demo
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