OpenID Connect Experts in Berlin
matched in minutes by AIHire experts who design identity flows, integrate OAuth 2.0 providers and secure APIs for web and mobile products. FRATCH connects you with vetted, available freelancers through fast, precise matching.
Meet FRATCH Experts in Berlin, who have recently used OpenID Connect
Julius H.
Last position:
Freelancer at Freelancer — Pharma Industry
- Led migration to GCP using Terraform, GKE, and GitOps, improving deployment consistency and scalability
- Implemented Datadog observability stack via Terraform and datadog-operator
- Established automated end-to-end tests and on-call processes, improving incident response and service reliability
- Migrated from NGINX Ingress Controller to Kubernetes Gateway API (NGINX Gateway Fabric)
- Migrated stateful services (PostgreSQL and Redis) to GCP, improving scalability and operational reliability
Imran A.
Last position:
Software Engineer II at LivePerson Germany GmbH
- Led development of 15+ microservices (Java 17, Spring Boot) driving customer interactions; migrated from on-prem to GCP Kubernetes, improving scalability and reducing infra cost by 20%.
- Optimized user services with CouchDB caching and API refactoring, cutting response times by 35% and enhancing customer experience.
- Implemented canary deployments, FluxCD GitOps, and CI/CD optimizations in GitLab, reducing release lead time by 25% and enabling zero-downtime rollouts.
- Set up Grafana health checks and Anodot alerts for latency, error, and throughput monitoring, reducing MTTR by 40%.
- Built secure APIs using OAuth2, DPoP, and Gatekeeper, integrated REST and GraphQL, and achieved 90%+ test coverage with unit and E2E tests.
- Mentored junior developers, promoted Agile best practices, and collaborated cross-functionally to deliver high-impact, reliable customer-facing features.
Abhiroop B.
Last position:
Software Engineer III at Foundry Digital
- Developed and deployed microservices in Kotlin and Spring Boot, integrated AWS Secrets Manager to secure credentials and decreased network calls using Spring cache.
- Refactored Kafka consumer using Spring Kafka with semaphore-based backpressure to cap records and keep heap memory stable under spikes; switched to batch upserts to cut down on database invocations; added Testcontainers integration tests for Kafka and database to pave the way for future changes.
- Automated the financial reconciliation workflow in Spring Boot (Kotlin) using Spring Scheduler, transactional boundaries, JPA/Hibernate on MySQL, and Flyway migrations, saving the accounts team 16+ hours per week.
- Designed and dockerized payments end-to-end test framework in Robot (Python) with reusable keyword libraries and profiles; integrated with GitLab CI (JaCoCo XML and HTML reports) to accelerate releases and lift code coverage to 80%.
- Implemented end-to-end observability on Datadog by instrumenting services with Datadog APM, correlating metrics and logs, provisioning dashboards, and creating monitors with burn-rate alerts and anomalies to harden reliability and give stakeholders clear visibility.
Ola V.
Last position:
IT Lecturer
- IT training in theory and practice for IT specialists in application development and system integration
Ursula R.
Last position:
Sabbatical with Training at Own Sabbatical
Mario J.
Last position:
Architect / Developer at handyhase
- Overhaul of the entire design and implementation of new UI/UX aspects using React
- Planning of the software architecture and structuring of the project for long-term scalability using Git for version control
Karthikeyan R.
Last position:
Full-Stack Developer — Own Product at Self-employed
Java 21 · Spring Boot 3 · Keycloak · PostgreSQL · Docker · Nginx · GitHub Actions · DigitalOcean · React 18 · TypeScript · Plasmo
- Architected and shipped a production-ready Job Application Tracker end-to-end: REST API with 5-stage workflow, pagination, sorting, and dynamic filtering — full ownership from design to live cloud deployment on DigitalOcean.
- Implemented production-grade identity management: OAuth 2.0 / OpenID Connect / JWT / RBAC via Keycloak, applying Hexagonal Architecture and DDD principles.
- Built automated CI/CD pipeline (GitHub Actions); containerised with Docker; Nginx reverse proxy with path-based routing and SSL termination.
- Developed a Chrome Extension (Plasmo framework, Manifest V3) that auto-fills job applications directly from LinkedIn into the tracker — demonstrates full product thinking across backend API and browser client.
Ottavio B.
Last position:
Semantic Test Framework for LLMs
Tobias J.
Last position:
Design of an AI-Agent-Based ERP System
- Design of an LLM-based agent system to control the ERP software
- Development of agent workflows with LangGraph and PydanticAI
- Planning interfaces between business logic and language models
- Planning agent orchestration
- Prototype development and demonstration
Tools: Python, Pydantic, React, LangChain, LangGraph, Linux
Tino T.
Last position:
Director Technology at Forte Digital Germany
- Leading 20+ staff in development, site reliability engineering, and architecture.
- Leading the group-wide agentic AI initiative (Norway, Poland, Germany).
- Hands-on solution architect and AI consultant for over 50% of my working time on client projects in the publishing sector – from local publishers to international corporations.
- Strategic consulting and technical implementation of AI workflow platforms (n8n, Workato).
- Developing prototypes for traditional, AI-based, and agentic AI workflows.
Olaf N.
Last position:
Frontend Engineer at Danaher/Hach Lange GmbH
- Developed a SolidJS frontend UI for a spectrometric water analysis system on an ARM-based embedded Linux platform
- Prototyped UI in TypeScript React/Nx with LitElements and MQTT integration
- Built production UI using SolidJS, SUID, i18next, Ajv, MQTT.js, C3.js
- Refined requirements with UX team and water analysis system engineers
- Defined and documented system architecture, MQTT message formats, frontend architecture, and development setup
- Set up frontend system from scratch, implemented domain-oriented type system, UI components, and application state
- Managed MQTT pub/sub services and schema-based message validation in frontend
- Coached two junior frontend developers
- Worked in an agile remote team using JIRA, Git, and Bitbucket
Aadityavelava V.
Last position:
Senior Product Manager – Checkout & Cloud Identity at SCAYLE (ABOUT YOU Group)
- Defined the headless Checkout product strategy (APIs, contracts, extensibility) and roadmap; partnered with Engineering/SecOps to refactor and harden the platform for externalization.
- Aligned MDs/C-level on a multi-quarter roadmap, business cases, and success metrics (conversion, time-to-launch for partners, incident rate, SLA adherence).
- Chaired cross-functional planning (multiple PMs and squads); ran RICE prioritization and capacity planning for the unit; sequenced dependencies across Frontend, Payments, Platform, and Security.
- Rolled out a multi-tenant OIDC Identity Provider (SSO, RBAC, tenant isolation, data reuse) and integrated it with Checkout and partner apps; reduced login friction and support escalations.
- Established a governed Rules Engine (eligibility, promotions, shipping and payment rules, compliance guards) with versioning, safe rollouts, and clear ownership across teams.
Robert H.
Last position:
Senior Software Engineer at Zalando SE
Discover over 15,000 top freelancers
Statistics of experts using OpenID Connect
Aggregated from the professional profiles of matched freelancers.
Experience
18 years (Germany: 20 years)
Position duration
1.7 years (Germany: 1.9 years)
Positions per freelancer
13 (Germany: 14)
Top business areas
Information Technology, Product Development, Project Management
Top industries
Information Technology, Manufacturing, Banking and Finance
Certification focus areas
Information Technology, Project Management, Product Development
Bachelor's degree or higher
89% (Germany: 85%)
Master's degree or higher
56% (Germany: 48%)
Certifications per freelancer
1 (Germany: 2)
Most common languages
German, English, French
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 Berlin 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 Berlin 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%)
- Manufacturing (54%)
- Banking and Finance (46%)
- Retail (46%)
- Education (38%)
- Automotive (31%)
- Healthcare (31%)
- Media and Entertainment (31%)
Please note that freelancers can work across multiple industries, so percentages overlap.
About the technology
Identity layer
OpenID Connect, commonly called OIDC, is an identity layer built on OAuth 2.0. It lets an application verify who a user is and receive trusted profile claims through an authorization server. Companies use it for single sign-on, account creation, delegated access and consistent authentication across web, mobile and API-based products.
Core flows
OIDC specialists select and configure flows that fit the client, user and application type. They work with authorization code flow, PKCE, refresh tokens, scopes, claims and discovery metadata. Strong implementations validate issuer, audience, nonce, state, signatures and token expiry rather than treating an identity token as a general-purpose access token.
Ecosystem and tooling
The technology connects applications with identity providers and enterprise directories. Common environments include Microsoft Entra ID, Auth0, Okta, Keycloak, Amazon Cognito and IdentityServer, with libraries for Java, .NET, JavaScript, Python, Go and mobile platforms. Professionals also use JWKS endpoints, browser security tools, API gateways and automated integration tests.
Typical delivery work
- Map login, registration, consent and account-linking journeys
- Integrate an OIDC provider with web, mobile and backend services
- Define scopes, claims, roles and tenant boundaries
- Migrate legacy sessions or SAML connections without disrupting users
- Test logout, token rotation, failure states and recovery paths
The resulting work may include provider configuration, reusable authentication modules, API protection, identity maps, migration plans and operational runbooks.
When expertise helps
Companies bring in freelance specialists when a product needs secure sign-on across several applications, a provider migration is underway or identity requirements differ by tenant. Expertise is also valuable when teams face recurring callback errors, mismatched claims, unclear token ownership or difficult logout behavior. In Berlin, remote collaboration is common, while on-site workshops can help align product, security and compliance teams.
Quality signals
Strong professionals explain the trust model in plain language and separate authentication from authorization. They document redirect URIs, key rotation, session behavior, data minimization and incident handling. They know when OIDC is a better fit than SAML and when OAuth 2.0 alone is sufficient, and they verify the integration with threat modeling and end-to-end tests. For Berlin-based work, clear English communication and the ability to collaborate with German-speaking stakeholders can both matter.
Frequently asked questions
What clients ask us most about OpenID Connect — answered in short.
OpenID Connect is used to authenticate users and share verified identity information with applications. It supports single sign-on, social login, enterprise access, account linking and identity-aware APIs when combined with OAuth 2.0.
OpenID Connect adds an identity layer to OAuth 2.0. OAuth 2.0 delegates access to resources, while OIDC defines how an application verifies the user and receives identity claims.
OIDC is often a practical choice for modern web, mobile and API products because it uses JSON and fits contemporary application patterns. SAML can remain appropriate for established enterprise integrations, so the decision depends on existing identity providers, application types and partner requirements.
An OpenID Connect specialist should understand OAuth 2.0, HTTP, JWT validation, TLS, browser security and API authorization. Experience with identity providers, directory services, session management, SAML and cloud access controls is also useful.
An OIDC integration can be straightforward when one application uses a managed provider and standard flows. More involved work calls for a specialist who has handled multi-tenant claims, provider migration, legacy sessions, logout behavior and incident response.
OpenID Connect work is well suited to remote collaboration because configuration, code review, test environments and documentation can be shared securely. Berlin teams should agree early on access procedures, workshop times, communication language and ownership of identity-provider settings.
A quality OpenID Connect implementation validates issuer, audience, nonce, state, signatures and token expiry. Reviewers should also inspect redirect URI restrictions, PKCE, key rotation, scope design, logout behavior, error handling and protection of personal data.
Yes, an OpenID Connect professional can plan migration between providers such as Keycloak, Auth0, Okta or Microsoft Entra ID. The work may include claim mapping, account matching, parallel rollout, session handling, rollback plans and communication for affected users.
The average hourly rate of freelancers in Berlin, Germany who have used OpenID Connect in their recent projects is 88 €, which corresponds to a daily rate of about 703 € based on an 8-hour working day.
Of the freelancers in Berlin, Germany who have used OpenID Connect in their recent projects, 89% hold at least a Bachelor's degree and 56% hold at least a Master's degree.
On average, freelancers in Berlin, Germany who have used OpenID Connect in their recent projects have 18 years of professional experience, with a single engagement typically lasting around 1.7 years.
The most common languages among freelancers in Berlin, Germany who have used OpenID Connect in their recent projects are German (100%), English (100%), and French (15%).
The most common industries among freelancers in Berlin, Germany who have used OpenID Connect in their recent projects are Information Technology (100%), Manufacturing (54%), and Banking and Finance (46%).
The most common business areas among freelancers in Berlin, Germany who have used OpenID Connect in their recent projects are Information Technology (100%), Product Development (92%), and Project Management (69%).
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.
Hamburg 
Munich 
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Philipp Thomaschewski
FRATCH CEO
