Single Sign-On Experts in Frankfurt
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Meet FRATCH Experts in Frankfurt, who have recently used Single Sign-On
Ali Aminian
Last position:
Platform Engineer & Software Architect at Yatta GmbH
- Architected the Yatta Integration Layer – a config-driven integration platform on Java 25, Spring Boot 4 (WebFlux), Temporal, gRPC and Kafka, enabling new third-party integrations (e.g. AVS fulfillment) via declarative JSON configs with zero code changes.
- Designed and implemented Tink integration with 0Auth IBAN verification to enhance fraud prevention and account validation workflows with Adyen payByBank.
- Architected and implemented an OpenFGA-based authorization model for centralized management of users, groups, and fine-grained access control in the vendor portal.
- Architected and led delivery of the Yatta API Gateway platform using GraphQL Federation, providing a unified enterprise API layer across distributed microservices with centralized authentication, authorization and request orchestration.
- Replaced NGINX + NLB with Istio service mesh and AWS ALB; rolled out WAF, OAuth (Cognito), IP whitelisting and RBAC across environments.
- Migrated CDC from Confluent Cloud connectors to a self-hosted Kafka Connect + Debezium stack, reducing operational cost by ~80% across multiple environments.
- Implemented the Transactional Outbox pattern with Debezium for reliable, exactly-once event publishing to Kafka with Avro and Schema Registry.
- Migrated dunning/payment-recovery workflows from Airflow to Temporal, achieving 99.9% reliability for settlement handling.
- Optimised Apache Airflow with deferrable sensors to handle 1000+ concurrent DAG runs without scaling the worker pool.
- Refactored a monolithic Terraform codebase into 3 modular projects, cutting deployment time by ~45%.
- Stood up full observability with OpenTelemetry, Tempo, Prometheus and Loki; automated dev/staging/prod with ArgoCD, Image Updater and Helm.
- Collaborated with product, operations and engineering stakeholders to define scalable platform architecture and integration standards aligned with long-term business and operational goals.
Saqib Javed
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 Teilab
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
Jan Sammeck
Last position:
Bootcamp Coach at neuefische GmbH
- Bootcamp Coach: "Digital Sales with AI" for neuefische GmbH
- Creation of curriculum and content for career changers seeking to start a career in digital sales
- Teaching of methods and tactics for an exhaustive tech stack:
- AI Agents Zapier and make.com
- AI Tools Midjourney, heygen, Text-Text LLMs (ChatGPT, Claude, Gemini etc.)
- Sales Software Stack: Fireflies, HubSpot, WIX, Talkwalker
Onik Mia
Last position:
SAP SuccessFactors & S4HANA Consultant at Banking Industry
Extracted relevant infotypes from SAP HCM for migration to SuccessFactors Employee Central and mapping to ECP fields.
Configured P2P integration including BAPI setup and secured data exchange with HTTPS and OAuth protocols.
Set up foundational settings in Recruiting (REC) including roles, permissions, and job requisition templates.
Implemented Career Site Builder to create a branded candidate experience and integrated external job boards.
Configured candidate application workflows, screening, interviewing, and hiring communication templates.
Set up pre-screening questions and assessment tools including DHB sanction list checks.
Implemented automated background check and KYC integration with external vendors in the REC module.
Localized job requisition templates to reflect regional job titles and regulatory compliance.
Customized onboarding document templates and localized document archiving protocols (DRTM).
Adjusted onboarding forms to capture country-specific employee information including Form I-9.
Enabled Form I-9 remote document verification and integrated eVerify with SuccessFactors.
Set up automated reminders for employees and HR to complete I-9 sections within deadlines.
Configured pre-Day 1 access for new hires to complete tasks and mandatory trainings prior to start date.
Enabled e-signature integration for onboarding documents to support remote verification.
Technologies: SAP SuccessFactors, BTP, CPI, HCM onPremise, EC, ECP, REC, ONB, Form I-9, eVerify, S4HANA.
Svyetoslav Pidgornyy
Last position:
CTO at Skar Audio
- Main developer in an online retail company
- Built an online shop using the Next.JS React framework
- Integrated the site with dozens of third-party apps using REST and GraphQL APIs
- Built a backend for order management, warehouse management (with iPhone app), and supply management
- Automated invoicing and finances with QuickBooks
Werner Keil
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
Peter Weileder
Last position:
ISO 27001 Auditor for health insurance archive system at Health insurance company
The replacement of the existing archive system (document management system – DMS) on a host-based platform is well advanced.
The internal audit is meant to ensure the company's quality standards.
GDPR
ISO 27001 ff.
BSI
DORA
Patient data regulations
Host / Cloud / S3 / Container / highly scalable / Nuxeo
Budget: 50,000
Team: 1
Fayyaz Ilyas
Last position:
Senior / Global IT Project Manager, Cloud & Platform Engineering at BOSCH
- Led multiple concurrent, enterprise-scale technical programs spanning backend services, APIs, identity platforms, cloud infrastructure, and security
- Actively participated in system architecture and design reviews, validating service interactions, data flows, security models, and scalability requirements
- Worked hands-on with engineering teams to decompose complex initiatives into technical epics, stories, and deliverables
- Reviewed technical approaches, migration strategies, and rollout plans to minimize operational and security risk
- Delivered SSO, MFA, directory services, SaaS integrations, and platform modernization impacting tens of thousands of users globally
- Drove Agile delivery across globally distributed teams; facilitated ceremonies, resolved blockers, and improved engineering throughput
- Established technical RAID logs, dependency maps, and milestone-based execution plans in regulated enterprise environments
- Acted as a trusted technical partner to senior leadership, translating complex engineering topics into business-relevant outcomes
Sven Koebnick
Last position:
Generalist System Administrator at Enbw
- Automation of the (Linux-based) web landscape maintenance.
- Use of SALT, SuseManager, Wildfly, scripting and Kubernetes.
- DevOps tasks and use of Jira.
- Management of "special" applications as well as creating and helping with concepts.
- Focus on security, maintainability, integration and tooling/integration.
Leonid Ravin
Last position:
IT Business Analyst / Requirements Engineer at S-Payment GmbH / Sparkasse (DSV-Gruppe)
- Business analysis of payments for the introduction of Wero EPI in Germany.
- Analysis and optimization of merchant processes in the context of acquiring and issuing.
- Analysis of interfaces for instant payments.
- Analysis of SCT-Inst processes, settlement mechanisms and reporting processes.
- Identification and clarification of gaps in merchant processes.
- Analysis and documentation of clearing and settlement processes.
- OSPlus process analysis and documentation.
- Coordination and alignment with scheme management as well as various payment service providers and financial institutions on merchant processes.
- Preparation and follow-up as well as active participation in EPI meetings on technical coordination and regulatory topics in payments, including content familiarization and prioritization.
- Preparation and documentation of project and steering committees in the EPI environment.
- Creation of status reports for the subproject.
- Maintenance and structuring of Confluence pages for project documentation.
- Coordination and alignment with the issuing teams on individual customer processes as well as aligning with bank processes and acquirer processes in the Wero environment.
- Communication with payment service providers regarding merchant and bank processes in the Wero environment.
- Organizational support for project management in special tasks in the EPI and Wero environment.
- Digital filing and documentation in Confluence and Microsoft Teams.
- Planning, implementation and tracking of work packages and steps.
- Quality assurance and project control.
- Consulting on IT strategy, IT architecture and interface management in the EPI and Wero environment.
- Technical environment: Jira, Confluence, XML, JSON, MS Office (Word, Excel, Teams, PowerPoint), SharePoint, Draw.io, Innovator, 3rd-level support, ITIL, creation and updating of software documentation, interface management, OSPlus, Scrum, KYC, payment, European Payments Initiative (EPI), Wero, Microsoft Loop, Instant Payments, SCT-Inst.
Delly Fofie
Last position:
Dad of 2 daughters at Family
Rohith Radhakrishnan
Last position:
Senior Software Engineer at Clark GmbH
- Upgraded Ruby from 2.7 to 3.1, boosting application performance by 30% and reducing technical debt.
- Integrated Zendesk Messenger into the customer support platform, streamlining communication workflows and increasing support efficiency by approximately 25% through faster response times and improved issue resolution.
- Orchestrated the migration of 65,000+ Schutzklick customer records to a new cloud platform, achieving zero downtime and accelerating data access speeds by 40% for internal teams.
- Implemented JumpCloud SSO for 500+ admin users, strengthening platform security and access control.
- Conducted k6 load testing, enabling the platform to support 10,000+ concurrent users without degradation.
Steffen Müller
Last position:
Principal Consulting Partner - freelancing at microfin
Discover over 15,000 top freelancers
Statistics of experts using Single Sign-On
Aggregated from the professional profiles of matched freelancers.
Experience
19 years
Position duration
2.1 years (Germany: 2.3 years)
Positions per freelancer
15 (Germany: 13)
Top business areas
Information Technology, Product Development, Project Management
Top industries
Information Technology, Banking and Finance, Manufacturing
Certification focus areas
Information Technology, Project Management, Operations
Bachelor's degree or higher
69% (Germany: 85%)
Master's degree or higher
38% (Germany: 40%)
Doctorate
23% (Germany: 10%)
Certifications per freelancer
4 (Germany: 3)
Most common languages
German, English, French
Speak two or more languages
100% (Germany: 95%)
Based on our profile pool as of 30 Aug 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 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 30 Aug 2026. Actual rates may vary depending on seniority level, experience, skill specialization, project complexity, and engagement length.
About the technology
SSO basics
Single Sign-On lets people use one login to reach several internal and external systems. It reduces password sprawl and gives companies tighter control over access. Strong specialists know how to balance convenience, security, and support needs.
Where it fits
- Workforce portals and intranets
- SaaS access across many tools
- Partner and customer login flows
- Legacy app modernisation
SSO often sits at the center of wider identity work. It is used with central login, session control, and policy enforcement for web apps, APIs, and desktop tools.
Common stack
The most common building blocks are SAML, OpenID Connect, OAuth 2.0, and identity providers such as Microsoft Entra ID, Okta, Keycloak, and Ping. Skilled professionals know where each protocol belongs and how to avoid weak handoffs between them.
What experts do
- Design login journeys and trust boundaries
- Configure claims, roles, and group mapping
- Connect apps to identity providers
- Troubleshoot token, session, and redirect issues
- Document rollout and support steps
Good specialists also work with MFA, user provisioning, and logout behavior so the whole access flow stays consistent.
When to bring help
Companies usually bring in freelance expertise when a rollout touches many apps, when a migration must be done without downtime, or when an old login system needs replacement. In Frankfurt, this often matters for finance, logistics, and regulated teams that need clean access control across mixed environments.
What good looks like
A strong SSO professional can explain the difference between authentication and authorization, read SAML assertions, and debug OpenID Connect tokens. They write clear configurations, test edge cases, and keep error handling simple. If they can align security, user experience, and operations, they are the right fit.
Frequently asked questions
Everything clients usually want to know about Single Sign-On, in one place.
Single Sign-On is used to let one verified login open access to several systems without making people sign in again for each tool. It is common for employee portals, customer areas, partner access, and mixed application landscapes. Good implementations reduce friction while keeping control over sessions and access rules.
SSO is the login experience and access pattern, while OAuth 2.0 and OpenID Connect are protocols often used to deliver it. OpenID Connect handles identity details for sign-in, and OAuth 2.0 is more about delegated access to APIs and resources. A good specialist knows how these pieces work together instead of treating them as the same thing.
Single Sign-On projects often use both, but for different kinds of apps. SAML is common in enterprise web access and older SaaS integrations, while OpenID Connect fits modern web and mobile login flows more naturally. The right choice depends on the application mix, identity provider, and what the target systems support.
A strong SSO freelancer usually understands identity providers, MFA, user provisioning, session management, and app security basics. SAML, OpenID Connect, OAuth 2.0, and directory services such as Active Directory or LDAP are often part of the work. Clear documentation and careful testing matter as much as protocol knowledge.
Single Sign-On work is rarely just a quick configuration change when several apps or security rules are involved. Simple setups can be handled quickly by a focused specialist, but migrations, federation, and custom claims mapping need deeper experience. The more systems and exceptions you have, the more valuable practical implementation work becomes.
Yes, most SSO work can be done remotely because the key tasks are configuration, testing, and coordination. Frankfurt projects often still need a local touch for workshops, access reviews, or security sign-off with internal teams. A good freelancer should be comfortable working in English, and sometimes German, depending on the stakeholders.
Look for clear examples of real integrations, not just protocol names. A solid Single Sign-On specialist can explain why a design choice was made, how failures were tested, and how logout, MFA, and session expiry were handled. Strong communication matters because identity work touches security, support, and user experience at the same time.
A SSO engagement is easier when the scope is clear: which identity provider is in use, which apps must connect, and whether SAML, OpenID Connect, or both are required. Freelancers should also know who owns certificates, metadata, user attributes, and support escalation. That avoids delays once the first login tests begin.
The average hourly rate of freelancers in Frankfurt, Germany who have used Single Sign-On in their recent projects is 121 €, which corresponds to a daily rate of about 969 € based on an 8-hour working day.
Of the freelancers in Frankfurt, Germany who have used Single Sign-On in their recent projects, 69% hold at least a Bachelor's degree, 38% hold at least a Master's degree, and 23% hold a doctorate.
On average, freelancers in Frankfurt, Germany who have used Single Sign-On in their recent projects have 19 years of professional experience, with a single engagement typically lasting around 2.1 years.
The most common languages among freelancers in Frankfurt, Germany who have used Single Sign-On in their recent projects are German (100%), English (100%), and French (29%).
The most common industries among freelancers in Frankfurt, Germany who have used Single Sign-On in their recent projects are Information Technology (93%), Banking and Finance (71%), and Manufacturing (57%).
The most common business areas among freelancers in Frankfurt, Germany who have used Single Sign-On in their recent projects are Information Technology (100%), Product Development (79%), and Project Management (79%).
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.
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