Single Sign-On Experts in Stuttgart
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Meet FRATCH Experts in Stuttgart, who have recently used Single Sign-On
Will O.
Last position:
Solution Architect at Polizei Behörde Stuttgart
Designed a migration strategy for WLS applications to BKA Cloud and Stack IT
Created a hybrid cloud for internal testing and development with Kubernetes
Transformed the IT landscape from an outdated monolithic architecture to a cloud-based architecture
Integrated new CI/CD processes using Azure Pipelines
Quadrupled the processing throughput for personnel security checks
Migrated personnel security screening applications to Docker-based applications
Implemented CI/deployment pipelines using Azure DevOps
Environment: Java Springboot, Kubernetes, Oracle Weblogic, OpenID, Camunda, JUnit, TOGAF
Elmehdi D.
Last position:
Senior DevOps Engineer at Amber Tech GmbH
- Automated Kubernetes deployments to over 400 customer target environments (Rancher/RKE2) using versioned Helm charts and Argo CD ApplicationSets for daily releases.
- Created self-service customer onboarding based on versioned runbooks, reducing the process from days to hours; coordinated with customer IT teams (AD/LDAP, SMB/DFS, network).
- Migrated selected services to AWS alongside the Open Telekom Cloud platform: provisioned VPC, EC2, and IAM roles with least-privilege policies using Terraform; operated workloads on EC2.
- Set up Keycloak realms and OIDC/SAML clients for product SSO, federated with customers’ Active Directory.
- Set up tenant-specific strongSwan IPsec sidecars on Kubernetes instead of a central transit VM, with keys in HashiCorp Vault: reduced connectivity costs by approximately 80%, with DFS indexing over the tunnel.
- Designed the high-availability migration of the Redis environment to managed OTC DCS; set up alerting and on-call rotations with incident.io by severity, and improved Grafana queries and indexing.
Lothar H.
Last position:
Solution Manager for the investigation PoC and exchange and refinement of an existing cloud and IoT power plant control system at Shell AG and NEXT Kraftwerke GmbH
- Investigation PoC and exchange and refinement of an existing cloud and IoT power plant control solution for certificate management of renewable energy power plants (solar, wind, biomass and others) of the largest European renewable energy power plant operator in this field, including investigation of the IoT devices used in the field and their integration and network connection with the aim of automated PKI key management.
- Messaging with Kubernetes for large API-connected enterprise applications
- Risk and Attack Vector Analysis, Software Quality & Bug Assessments
- Agile Workload Scheduling via Jira & ConJluence
- Evaluation of message streams Pub/Sub for MQ and KaJka.
- Various tests with “best design approaches” regarding resilience patterns such as Circuit Breaker Designs, Throughput Measurement and Monitoring, Bulkhead Governors - for robust EA design
- Integration of API Management with IBMs API Connect to Kubernetes - for agnostic Microservices API Management Designs. Google Apigee
- Solution Health Check Approaches for Load Burst Situations + Remedy
- Research and investigation of available potential subcontractors in the coordinating role as Solution Manager. CIS20 Controls.
- Dread and Stride Security Assessments.
Sergey K.
Last position:
Managing Director Cybersecurity at CBA-Cybersecurity and Business Advisory GmbH
- Development of comprehensive services in cybersecurity, IT governance, and AI
- Building and delivering strategic security solutions such as vCISO service, ISMS, SOC-as-a-Service (SIEM, SOAR, use cases, playbooks, threat hunting, incident response), AI-driven risk and compliance tools, and frameworks for outsourcing and third-party risks
- Supporting companies in meeting regulatory requirements and certifications (ISMS, NIS-2, DORA, CRA, KRITIS, ISO 27001, TISAX, BSI IT Baseline Protection, EU AI Act)
- Promoting innovations in cybersecurity automation, AI governance, and secure digital transformation
- Responsible for company growth, client relations, and strategic partnerships
Martin F.
Last position:
IT Security Consultant at Freelance
Felix J.
Last position:
Senior Software Engineer at PCA GmbH
- Developed three applications with Flutter (Dart), Swift (iOS), and Kotlin (Android)
- Responsible for the apps' UI/UX design
- Developed a fingerprint plugin for HidGlobal in Swift and Kotlin
- Used Riverpod and Flutter Bloc for efficient state management
- Used Hive and Isar for local data management
- Used Firebase for backend services (Firebase Cloud Messaging, Analytics, and Firestore)
- Managed code with GitLab, developed using Visual Studio Code and Xcode
Discover over 15,000 top freelancers
Statistics of experts using Single Sign-On
Aggregated from the professional profiles of matched freelancers.
Experience
17 years (Germany: 19 years)
Position duration
2.2 years (Germany: 2.3 years)
Positions per freelancer
12
Top business areas
Information Technology, Operations, Project Management
Top industries
Information Technology, Automotive, Manufacturing
Certification focus areas
Information Technology
Bachelor's degree or higher
100% (Germany: 85%)
Master's degree or higher
80% (Germany: 43%)
Certifications per freelancer
2 (Germany: 4)
Most common languages
German, English, Russian
Speak two or more languages
100% (Germany: 95%)
Based on our profile pool as of 5 Nov 2026.
Daily rate distribution
The chart shows how the daily rates of experts in this technology in Stuttgart 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 Stuttgart using Single Sign-On
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 5 Nov 2026. Actual rates may vary depending on seniority level, experience, skill specialization, project complexity, and engagement length.
Single Sign-On 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%)
- Automotive (67%)
- Manufacturing (67%)
- Banking and Finance (50%)
- Food and Beverage (33%)
- Insurance (33%)
- Government and Administration (33%)
- Telecommunication (33%)
Please note that freelancers can work across multiple industries, so percentages overlap.
About the technology
What Single Sign-On does
Single Sign-On, commonly called SSO, lets people access several trusted applications after one authentication event. A central identity provider verifies the user and passes a secure assertion or token to connected services. This reduces repeated passwords while giving companies a consistent way to manage access, sessions and account removal.
Where it is used
SSO supports employee portals, cloud services, customer areas and internal business applications. It is common in companies that connect Microsoft 365, Google Workspace, Salesforce, ServiceNow, custom web apps or partner systems.
- Connect workforce applications through one identity provider
- Provide secure access to SaaS and internal services
- Support customer or partner identity journeys
- Centralize sign-in policies and account deactivation
Protocols and ecosystem
Strong specialists work across SAML 2.0 for enterprise federation and OAuth 2.0 with OpenID Connect for modern web and mobile access. Their toolkit may include Microsoft Entra ID, Okta, Keycloak, Auth0, Google Cloud Identity and identity management APIs. They also understand claims, scopes, certificates, redirects, token lifetimes and session handling.
When companies need experts
Freelance expertise is useful when an SSO rollout spans legacy software, cloud services and custom applications. Professionals can assess the current identity landscape, choose suitable trust relationships and plan a migration without disrupting daily access.
- Replace scattered application logins
- Investigate failed assertions, claims or callback flows
- Federate acquisitions, subsidiaries or external partners
- Prepare access reviews and reliable offboarding
What the work delivers
Typical deliverables include an identity architecture, protocol configuration, application integrations, test scenarios and operational documentation. Specialists can also establish role mapping, conditional access, multifactor authentication and monitoring. In Stuttgart, they may collaborate on site with security and IT teams or work remotely with clear ownership of test environments and approvals.
What distinguishes strong professionals
The best professionals treat SSO as an identity and security discipline, not just a login screen. They explain trade-offs between SAML, OAuth 2.0 and OpenID Connect, protect signing keys, validate tokens correctly and plan for failure. They test browser, mobile and service-to-service flows, document dependencies and leave teams able to operate the solution safely.
Frequently asked questions
Everything clients usually want to know about Single Sign-On, in one place.
Single Sign-On gives users access to multiple trusted applications through one authenticated session. It helps companies centralize access policies, reduce password handling and remove access consistently when someone changes role or leaves.
SSO centralizes authentication between an identity provider and connected services, while a password manager mainly stores and fills separate credentials. Passwordless access describes how a user proves identity, so it can be used within an SSO setup rather than replacing it.
A strong Single Sign-On specialist should understand identity governance, multifactor authentication, directory services, role-based access and security testing. Experience with SAML, OAuth 2.0, OpenID Connect, APIs, certificates and cloud identity services is also valuable.
The right level depends on the number and type of applications, the identity provider and the impact of access failures. A simple integration may need focused protocol expertise, while a company-wide migration calls for a professional who can handle architecture, legacy systems, rollout planning and operations.
Single Sign-On projects can usually be delivered remotely when application owners, test accounts and identity environments are accessible. On-site collaboration in Stuttgart can help when security reviews, workshops or legacy systems require close coordination, and clear English or German communication should be agreed early.
Ask the SSO professional to explain a past integration, including trust configuration, claims, certificate renewal, error diagnosis and rollback planning. Look for precise documentation, safe handling of credentials and a testing approach that covers both normal access and account removal.
An experienced Single Sign-On freelancer may work with Microsoft Entra ID, Okta, Keycloak, Auth0 or Google Cloud Identity. They should know when to use SAML 2.0, OAuth 2.0 or OpenID Connect and how to connect those standards to SaaS products, custom applications and directories.
SSO specialists often resolve invalid audiences, missing claims, clock differences, certificate issues, redirect errors and incorrect role mappings. They can also improve session controls, investigate failed federation flows and make onboarding and offboarding more reliable.
The average hourly rate of freelancers in Stuttgart, Germany who have used Single Sign-On in their recent projects is 95 €, which corresponds to a daily rate of about 759 € based on an 8-hour working day.
Of the freelancers in Stuttgart, Germany who have used Single Sign-On in their recent projects, 100% hold at least a Bachelor's degree and 80% hold at least a Master's degree.
On average, freelancers in Stuttgart, Germany who have used Single Sign-On in their recent projects have 17 years of professional experience, with a single engagement typically lasting around 2.2 years.
The most common languages among freelancers in Stuttgart, Germany who have used Single Sign-On in their recent projects are German (100%), English (100%), and Russian (50%).
The most common industries among freelancers in Stuttgart, Germany who have used Single Sign-On in their recent projects are Information Technology (100%), Automotive (67%), and Manufacturing (67%).
The most common business areas among freelancers in Stuttgart, Germany who have used Single Sign-On in their recent projects are Information Technology (100%), Operations (67%), and Project Management (67%).
Main locations of FRATCH Experts, who have recently used Single Sign-On
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 
Cologne 
Frankfurt Request a free demo
Get in touch with the FRATCH team and we will get back to you within 4 hours.
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Philipp Thomaschewski
FRATCH CEO
