Single Sign-On Expert in Hamburg
with fast, precise AI matching from over 15,000 CVsHire experts who connect identity providers, SaaS applications and workforce directories through secure Single Sign-On, with practical experience in SAML, OAuth and OpenID Connect. FRATCH matches you quickly with vetted, available freelancers for remote or on-site work in Hamburg.
Meet FRATCH Experts in Hamburg, who have recently used Single Sign-On
Mirco S.
Last position:
Co-Founder, CTO & Managing Director at Sourcera.ai (Venture Build)
Full overall responsibility: product, technology, compliance and go-to-market
- Delivered an enterprise MVP in 54 days, exceeding scope and schedule.
- Won a 250k € ARR anchor customer and built a sustainable enterprise sales pipeline in the first quarter.
- Paid PoCs with Zalando (35k €) and tesa (26k €), validating product-market fit with Tier-1 enterprise customers.
- Initiated ISO-27001 and TISAX certification processes. Left when the venture entered its next organizational phase.
Daniel S.
Last position:
Senior Software Engineer at energielenker solutions GmbH
- Designed and implemented a Python-based ETL pipeline with the Dagster framework to transform raw energy data from heterogeneous sources using InfluxDB and visualizations in Grafana
- Defined time-based and dependency-based jobs
- Deployed to managed Kubernetes clusters using Helm
- Integrated InfluxDB Cloud
- Prepared data for use in Grafana, including cleaning, normalization, and time-based resampling in Python
- Developed dashboards and visualizations in Grafana
- Developed unit tests with mocking using pytest
- Set up a CI/CD pipeline in GitLab
Technologies: Python, Dagster, InfluxDB, Grafana, pandas, pytest, REST, CI/CD, GitLab, Container, Kubernetes, Helm, Docker, Cloud
Habib M.
Last position:
ELO Architect/Admin, NAV Admin & M365 Engineer at KHK (CST Shipping & Marine Services) Group
Enterprise Content Management (ELO ECM) & Process Automation:
- Multi-Tenant System Architecture & Tenants: Designed, deployed, and maintained the ELO infrastructure for over 7080 legal entities (shipping and land-based companies with a total of 150+ active users in onshore/offshore operations).
- User & Group Administration: Full administration of ELO users, creation and maintenance of ELO groups, and implementation of granular, role-based access controls (RBAC).
- Dynamic Workflow Architecture: Designed, programmed, and implemented complex, dynamic approval workflows with hierarchical and cross-departmental approval levels (Multi-Tier Line Approvals, e.g. for invoice approvals and contract management).
- Operational Support & Troubleshooting: Daily troubleshooting of incoming workflow issues, continuous process adjustments, and error resolution during ongoing operations.
- Compliance, Archiving & Optimization: Managed archive structures, replaced paper-based processes with automated ELO pipelines, and ensured compliance with GDPR and audit standards.
Microsoft Dynamics NAV (Navision) – Administration & ERP Support:
- Tenant & User Management: Administration and permission management for complex multi-tenant environments with over 30 tenants (companies and shipping entities) in NAV.
- Master Data & Financial Processes: Created and maintained customers, vendors, posting groups, and supported intercompany transactions.
- Operational Support & Troubleshooting: Daily mid-level error handling for interfaces, document processing, and accounting processes across the various companies.
Hybrid Identity & Modern Workplace Management (M365 / Intune):
- Hybrid Directory Management: Administration of Active Directory (AD) and Entra ID (Azure AD) in a hybrid environment, including identity synchronization, Single Sign-On (SSO), and Multi-Factor Authentication (MFA).
- Endpoint & Security Management: Managed mobile devices and laptops through Microsoft Intune (MDM/MAM), implemented security baselines, compliance rules, and automated software rollouts.
- Security & Network Administration: Administration of Microsoft Defender for Endpoint and management of Sophos VPN authentication profiles to secure remote access.
- Collaboration Infrastructure: Administration of Exchange Online and Microsoft Teams Admin Center, including email hygiene, shared mailboxes, guest access, and SharePoint security policies.
Sridhar H.
Last position:
SAP CX Consultant at Anonymous
- Stack: SAP Commerce 2011 (B2C).
- Migrating the data from Stibo system to SAP Commerce Cloud.
- Mapping the data from Stibo system to SAP Commerce Cloud.
- Integrating hot folders to support multiple countries and languages.
- Integrating validation tools for migrated data and generating validation reports.
Paul K.
Last position:
Senior Flutter Developer at Elea.health
- Further development of a complex laboratory information system
- Development of new features including design
- Close collaboration with company leadership
- Embedded in a top team with consistently high performance under time pressure
- Agile approach, Kanban
Mark P.
Last position:
Full-Stack Software Developer, Product Data Import at Otto (GmbH & Co KG)
- Manage and operate the product data import services for the Otto merchant
- Enhance and maintain the backend systems
- Optimize and maintain AWS infrastructure
- Build a new product data import API
- Design and plan stories and features
- Conduct code reviews to ensure code quality and best practices
- Analyze and fix bugs
- Technologies: Java, Spring Boot, Kafka, AWS, Fargate, Terraform, MongoDB, Mongo Atlas, OpenAPI, GitHub, GitHub Actions, GitHub Copilot, Akhq, Debezium, JUnit, Test Containers, Hexagonal Architecture
Bharathi V.
Last position:
Senior Software Engineer (Individual Contributor) at European XFEL
- Electronic logbook app developed for research centers to maintain their investigations.
- Emphasizes user-driven organization of communication: experiment groups can configure information structure and notifications, while principal investigators maintain full access control.
- Real-time integration with the facility’s metadata catalogue, control system Karabo, and data analysis tool enables the automatic logging of key events, complemented by manual entries as needed.
René S.
Last position:
CRM Developer at CiS GmbH
- Developed a greenfield CRM for managing incoming customer requests for a municipal utility provider
- Implemented with PHP/Symfony 5, EasyAdmin, Doctrine ORM and Oracle XE
- Handed over to CiS GmbH after initial groundwork as planned
Georg W.
Last position:
Project Manager / Product Owner at Freelance
- Project management and product owner for ERP migration to Odoo
- Designed a central single sign-on system (AWS Cognito) for all digital portals
- Coordinated complex system integrations (SAP, payment providers) with technical and business stakeholders
- Budget responsibility and resource management
Michaela W.
Last position:
Customer Service Consultant, Mediator & Coach at Self-employed
I support the setup or optimization of customer service with the goal of creating efficient and transparent processes that lead to happy customers, employee satisfaction, and profitability.
I especially advise startups and e-commerce companies or act as an interim manager, train and coach teams, staff, and (junior) managers, and as a certified mediator, help clarify or avoid conflicts.
Setup and maintenance of helpdesk solutions:
Gorgias
Reamaze
Freshdesk
Zendesk
Christopher S.
Last position:
Relaunch news platform Spiegel Online at Spiegel Tech Lab GmbH
- Implemented business relevant features for the news platform
- Performed technical consultancy for system architecture
Guido S.
Last position:
Freelancer at IT Consulting GS
Discover over 15,000 top freelancers
Statistics of experts using Single Sign-On
Aggregated from the professional profiles of matched freelancers.
Experience
22 years (Germany: 19 years)
Position duration
3.2 years (Germany: 2.3 years)
Positions per freelancer
11 (Germany: 12)
Top business areas
Information Technology, Product Development, Project Management
Top industries
Information Technology, Retail, Transportation
Certification focus areas
Information Technology, Business Intelligence, Project Management
Bachelor's degree or higher
89% (Germany: 84%)
Master's degree or higher
33% (Germany: 42%)
Certifications per freelancer
2 (Germany: 4)
Most common languages
German, English, Spanish
Speak two or more languages
100% (Germany: 95%)
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 Hamburg 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 Hamburg 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 29 Oct 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%)
- Retail (50%)
- Transportation (42%)
- Telecommunication (42%)
- Banking and Finance (33%)
- Professional Services (33%)
- Aerospace and Defense (25%)
- Automotive (25%)
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 a person authenticate once and access several approved applications without signing in again to each one. An identity provider verifies the user and sends trusted authentication information to connected services. This improves access control, reduces password friction and gives companies a central place to manage identities.
Where it is used
SSO appears across internal systems, customer portals and cloud software. Typical projects include:
- Connecting Microsoft Entra ID, Okta, Keycloak or another identity provider to business applications
- Securing access to SaaS tools, intranets, developer environments and data platforms
- Migrating from separate application logins to a governed identity model
- Supporting workforce, partner or customer access with suitable authentication flows
Protocols and tooling
Strong specialists understand SAML for enterprise federation, OAuth for delegated authorization and OpenID Connect for authentication built on OAuth. They work with directory services such as Active Directory and LDAP, identity governance, SCIM provisioning, multi-factor authentication and role-based access. Depending on the environment, they configure cloud identity services, reverse proxies, application middleware and audit integrations.
When companies need expertise
Freelance expertise is useful when an SSO rollout crosses many applications, vendors or business units. It also helps during identity-provider migrations, mergers, security reviews and cloud adoption. Companies in Hamburg may need professionals who can collaborate with local stakeholders on-site while coordinating securely with distributed teams. German and English communication can both matter in international organisations.
- Applications fail to exchange assertions or tokens reliably
- User provisioning and deprovisioning remains manual
- Access policies differ across teams and environments
- A migration must avoid interrupting business-critical systems
What strong specialists deliver
Good professionals begin with an inventory of applications, identities, roles and trust relationships. They define the right protocol, claims, scopes and session behaviour for each integration, then document ownership and operational procedures. Their deliverables may include an integration design, configured connections, automated provisioning, test cases, monitoring rules and a clear rollback plan.
Quality and collaboration
Quality work is secure, testable and maintainable rather than limited to a successful login demo. Specialists validate certificate rotation, token expiry, logout behaviour, privilege boundaries, recovery paths and audit trails. They should explain decisions clearly, work with security and application teams, and leave behind documentation that internal professionals can operate. Remote collaboration works well when access, environments and responsibilities are prepared; on-site sessions can help with workshops and stakeholder alignment.
Frequently asked questions
The facts hiring teams ask for most often when it comes to Single Sign-On.
Single Sign-On is used to give users access to multiple approved applications after one authentication event. It centralizes login policy, supports consistent security controls and makes it easier to remove access when a person changes role or leaves the company.
SSO authenticates users through a trusted identity provider, while a password manager stores or fills separate credentials for each service. SSO usually offers stronger centralized lifecycle control, but a password manager can still be useful for applications that cannot support federation.
A strong Single Sign-On specialist should understand SAML, OAuth and OpenID Connect, including their different purposes. Practical work may also involve SCIM, LDAP, Active Directory, multi-factor authentication, session management and identity governance.
The right level depends on the number and sensitivity of connected applications, the identity-provider landscape and the migration risk. A small integration may need focused configuration skills, while a broad rollout calls for a professional who can design trust relationships, test edge cases and coordinate security, infrastructure and application teams.
Single Sign-On can support older applications through gateways, reverse proxies, adapters or credential-bridging tools when native federation is unavailable. A specialist should assess the security trade-offs carefully and avoid creating a weak link around a legacy system.
A capable SSO freelancer often brings knowledge of cloud identity services, directory synchronization, access governance, networking and application security. Experience with provisioning, certificate management, logging and infrastructure automation is also valuable for reliable operation after launch.
Single Sign-On projects are often suitable for remote collaboration because configuration, testing and documentation can be handled securely online. On-site workshops in Hamburg may still help with application inventories, stakeholder decisions and access reviews, especially when German and English teams need close coordination.
Ask a Single Sign-On specialist to explain protocol choices, claim or scope mapping, failure handling and access removal. Review whether the work covers certificate rotation, logout, token expiry, privileged access, monitoring, documentation and a tested rollback path rather than only a successful login.
The average hourly rate of freelancers in Hamburg, Germany who have used Single Sign-On in their recent projects is 98 €, which corresponds to a daily rate of about 787 € based on an 8-hour working day.
Of the freelancers in Hamburg, Germany who have used Single Sign-On in their recent projects, 89% hold at least a Bachelor's degree and 33% hold at least a Master's degree.
On average, freelancers in Hamburg, Germany who have used Single Sign-On in their recent projects have 22 years of professional experience, with a single engagement typically lasting around 3.2 years.
The most common languages among freelancers in Hamburg, Germany who have used Single Sign-On in their recent projects are German (100%), English (100%), and Spanish (8%).
The most common industries among freelancers in Hamburg, Germany who have used Single Sign-On in their recent projects are Information Technology (100%), Retail (50%), and Transportation (42%).
The most common business areas among freelancers in Hamburg, Germany who have used Single Sign-On in their recent projects are Information Technology (100%), Product Development (92%), 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 
Munich 
Cologne 
Frankfurt Request a free demo
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Philipp Thomaschewski
FRATCH CEO
