OAuth Experts in Austria
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Meet FRATCH Experts in Austria, who have recently used OAuth
Chrisabel Prischl
Last position:
AI Systems & Product Strategy Expert at Webmeisterin
I build. I advise. I think in systems. After years leading digital transformation at scale — Accenture, BP, Lidl — I made a deliberate choice: trade platform dependency for structural independence. My focus is at the intersection of AI systems, product strategy, and venture thinking. I work with operators and founders who want to move fast without losing control — of their data, their stack, their direction.
Alexander Vasilenko
Last position:
Senior Cloud & Kubernetes Architect at A.S.E. | Business Solutions for Construction
- Architected and deployed a highly available, multi-tenant Kubernetes platform on Google Kubernetes Engine (GKE) for business-critical microservices.
- Designed and implemented a comprehensive Infrastructure-as-Code strategy using Terraform for managing GKE clusters, networking (VPCs, Subnets), and IAM policies.
- Engineered optimized storage solutions for stateful workloads (MongoDB) using GKE PersistentVolumes, enhancing performance and data resiliency.
- Established a full-stack observability framework using Google Cloud Monitoring, Logging, Prometheus, and Grafana.
Joseph Wagner
Last position:
Freelancer Cloud / Solution Architect (AWS) at A1 Bank
- I am responsible for providing solution architecture and technical assistance for a migration initiative aimed at transitioning to a new core banking system.
- The project involves replacing in-house development with a commercially available off-the-shelf core banking system operated as SaaS on AWS.
- Duties encompass solution design, technical coordination, supporting development teams, and providing IT support and troubleshooting.
- Managing over 10 global vendors and partners is crucial to project success.
- Technologies: VMWare ESXi, AWS, EKS Kubernetes, Mastercard Payment Transaction Service, Avaloq, A1 Telekom Austria infrastructure, CheckPoint FW, F5, Site-to-Site VPNs, PingID, Futurae SDK, Airlock, UC4/Automic, Firebase, iOS/Android lifecycle management, AWS IAM, AWS AppStream, AWS S3, AWS Transfer Family, QlikView, OpenAPI.
Maximilian Götz-Mikus
Last position:
Solo Developer / Founder at InvAPI
- Privacy-first, stateless e-invoice API providing AI-powered extraction, bidirectional format conversion (UBL/CII/ZUGFeRD), batch processing, and validation for German/Austrian e-invoice compliance
- Technologies: Nuxt 4, Vue 3, Nitro, TypeScript, Cloudflare (D1, R2), Stripe, OAuth, AI/LLM integration
David Lynn
Last position:
Senior Full Stack Engineer at Fractual
- Built and maintained a full-featured React Native mobile app and companion web portal supporting multi-role access and real-time collaboration for service teams.
- Developed a robust NestJS backend using TypeScript, adhering to scalable microservices patterns to support a dynamic task management system.
- Designed and optimized PostgreSQL schemas, using advanced indexing and normalized data models to support patient tracking, tasks, and outcome reporting.
- Integrated Socket.IO to support real-time team communication, task status updates, and instant notifications across mobile and web platforms.
- Developed secure authentication workflows using AWS Cognito, including multi-role login, token refresh, and session timeout handling.
- Leveraged AWS S3 for secure document uploads (patient records, resource materials) with signed URLs and access control policies.
- Connected AWS SNS and SES to automate notifications for escalations, missed follow-ups, and appointment reminders.
- Engineered an admin analytics dashboard using React + Zustand for tracking user activity, case completion rates, and compliance metrics.
- Designed and implemented AI-driven features for task prioritization and patient risk classification using external API integrations.
- Established a robust CI/CD pipeline using GitHub Actions and Docker, achieving automated testing, linting, and environment-based deployments.
- Followed Agile ceremonies (daily standups, sprint planning, retros) while collaborating with QA, BAs, and PMs to deliver high-velocity features.
- Led data protection efforts ensuring full GDPR compliance, including encrypted storage, session control, and user-consent management.
- Delivered a fully responsive UI using DaisyUI-style components for mobile and tablet-first designs, achieving high Lighthouse scores.
- Reduced support tickets by 40% by implementing detailed audit logging and a self-service helpdesk system in the admin interface.
Zlatko Sehanovic
Last position:
Senior Consultant at Kater Systems
- Collaborated on debugging and maintaining the existing codebase
- Created diagrams and visualizations of system architecture
- Contributed to reports and scientific documents
Andreas Becher
Last position:
Freelance iOS Developer at Self-employed
NFC – Project: Development of a prepaid app solution that retrieves already paid services (credit) via an NFC connection between smartphone and terminal
Technologies: REST, NFC, Swift Concurrency, Keychain
KURIER edition & Futurezone.at: Development of white-label apps in partnership with Technical Apps for k-digital Medien GmbH
Technologies: REST, In-App Purchase, Push Notifications, Analytics, OAuth
White-label app for sports associations and institutions: iOS client connected to backend, focusing on modularity, flexibility, and customizability
Technologies: Swift packages (Network, Core, Business Logic, Frontend), MVVM pattern, reactive programming (Combine)
Magenta Sport iOS app: OTT sports platform by Deutsche Telekom with SSO (OAuth), HLS video streaming, DRM protection
Video player framework: Integration of the Sportradar OTT process, licensing model, HLS streams, DRM, analytics, Chromecast, AirPlay, Picture in Picture, Apple TV; available as an XCFramework via CocoaPods; used in WRC, MagentaSport, NHL TV
Collaboration on other apps: DFB and DFB Fanclub; LAOLA1.at; LAOLA1.tv; RedBull Salzburg (formerly)
Martin Haintz
Last position:
Software Development & IT-Consulting at Self-Employed
Tech stack: Flutter/Dart, Unity3D, React, NextJS, JavaScript, TypeScript, HTML, CSS, SASS, SCSS, Tailwind, Bootstrap, Ollama, llama.cpp, LangChain, MCP, RAG, n8n, Node-Red, PlatformIO, Arduino, ESP, C, C++, Python/Django, NodeJS, C#, .NET, PostgreSQL, MySQL, MS-SQL, MongoDB, AWS, Azure, GCP, GitHub Actions, GitLab CI, Azure Pipelines, Ansible, Terraform, Docker, Postman, REST, WebSocket, Figma, Penpot, Adobe Illustrator, Adobe InDesign, VS Code, Android Studio, Visual Studio, Unity3D, Jira, Confluence, Traefik, Rclone, Authentik, pfSense, Cloudflare, Proxmox, MQTT
Previous projects:
n8n automation that reads incoming emails from an Office mailbox and routes them to stakeholders
FastMCP 2 server exposing internal services via REST API to an LLM
Terraform migration of cloud infrastructure with Azure VMs, network, blob, storage and cloud-init
Azure Pipelines for automated testing, deployment, and artifact management
Terraform, Ansible, Cloudflare Tunnel integration with Docker container provisioning and backups
GitHub Actions CI/CD for Flutter app builds, testing, automated screenshots, and App Store deployment
Flutter app with SSO, local database, backend integration, BLE synchronization
GCP setup with Cloud DNS, App Engine, Cloud SQL
AWS environment with EC2, S3, Route 53, ECS
Workshops delivered on Docker, Git, Terraform, Ansible, Cloudflare, DevOps, modern software development practices
Backend development with Python Django REST Framework, PostgreSQL, MQTT
SSO identity provider with OIDC, OAuth, LDAP, Cloudflare Tunnels, Authentik
Kurt Blumenschein
Last position:
Backend / Microservice Developer, DevOps, Test Automation at RCA, Rail Cargo Austria AG
- Backend / Microservice Developer, DevOps, Test Automation
- ~100 Devs, ~10 Teams, per team: 1 PO, 1 Scrum Master, 1 UX, 1 Developer, 1 Tester
- .net core 8, 9, C#
- Microservices, Clean-Architecture, MediatR, CQRS
- GraphQL, REST, SDL
- Azure DevOps, CI / CD-pipelines, Azure-Service Bus, Rabbit-MQ, Kafka, Azure App Configuration, Azure KeyVault, Azure Kubernetes AKS
- Splunk, dashboards, custom metrics, Elastic-Search, Kibana (ELK)
- Azure SQL-Databases, Azure Cosmos DB
- Architecture decisions, event governance, COP (Backend, DevOps, FrontEnt, Test Automations)
- AI, Copilot, creating test templates
- Scheduler, Hangfire, Quartz
- Automated unit and integration tests
- Automated E2E tests, Playwright test automation, BDD, Gherkin, Cucumber
- Tracking of shipments
- GIS, GPS data, geofence, geo search, position tracking, asset positions
- Jira, Confluence
- Focus on high-performance message-oriented architecture (~xx million messages per month per service)
- Structured logging, Serilog, OTel, Splunk, Application Monitoring
- Integration of different position data sources (GPS-based data) into Azure Data Lake
Jaroslav Abraham
Last position:
Child care, personal development and learning
Discover over 15,000 top freelancers
Statistics of experts using OAuth
Aggregated from the professional profiles of matched freelancers.
Experience
18 years
Position duration
2.6 years
Positions per freelancer
10
Top business areas
Information Technology, Product Development, Quality Assurance
Top industries
Information Technology, Banking and Finance, Automotive
Certification focus areas
Information Technology, Legal, Marketing
Bachelor's degree or higher
86%
Master's degree or higher
29%
Certifications per freelancer
2
Most common languages
German, English, Spanish
Speak two or more languages
100%
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 Austria 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 Austria using OAuth
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
What OAuth does
OAuth is an authorization framework for letting apps access APIs and services without sharing a password. It is used for delegated access, consent screens, token-based login flows, and secure connections between products. Companies bring in OAuth specialists when identity, access, and API security need to work together.
Common use cases
- Protecting REST and GraphQL APIs with bearer tokens
- Connecting web apps to Google, Microsoft, or internal identity systems
- Enabling mobile sign-in and app-to-app access
- Setting scopes, refresh tokens, and consent flows
- Reviewing login and authorization behavior during audits
Ecosystem and standards
Strong professionals working with OAuth usually know OAuth 2.0, OAuth 2.1, and OpenID Connect, because these are often used together. They also work with JWT, PKCE, authorization servers, resource servers, and identity providers such as Keycloak, Auth0, Okta, Microsoft Entra ID, or Ping.
When companies need help
Many teams call in freelance expertise when they add single sign-on, expose new APIs, or replace a homegrown auth flow that is hard to maintain. In Austria, this often comes up in SaaS, fintech, healthcare, and enterprise IT projects where secure access and clear consent handling matter. Remote collaboration works well when the requirements and identity setup are documented.
What good experts deliver
A strong OAuth specialist does more than wire up a library. They define scopes, choose the right grant flow, reduce token risk, and make sure clients, APIs, and identity systems agree on the same rules.
- Clear authorization design
- Safe token handling and rotation
- Reliable integration with existing identity stacks
- Practical guidance for frontend, backend, and mobile teams
Signs you need a specialist
Bring in an expert if users cannot log in consistently, API access is too broad, or different apps handle consent in different ways. The same is true when you need to combine OAuth with OpenID Connect, support partner integrations, or clean up legacy authentication before a release. Good specialists leave behind flows your team can maintain after the project ends.
Frequently asked questions
Quick answers to the questions that come up most around OAuth.
OAuth is used to let one application access another system on a user's behalf without taking the user's password. In practice, it powers API access, delegated permissions, login handoff, and consent-based access to data. It is common in web apps, mobile apps, and partner integrations.
OAuth handles authorization, which means deciding what an app may do. OpenID Connect adds identity on top of OAuth and is used when a system also needs to verify who the user is. Many projects use both together, so a good specialist should understand the boundary between them.
A strong OAuth specialist usually also knows OpenID Connect, JWT, PKCE, and API security. They should understand cookies, browser behavior, token lifetimes, and how identity providers fit into existing systems. Experience with Keycloak, Auth0, Okta, or Microsoft Entra ID is often useful.
OAuth help is useful when a team is adding SSO, opening an API to partners, or fixing a fragile login flow. Outside support also helps when the existing implementation was built quickly and now needs clearer scopes, better token handling, or a cleaner consent model. This is common in larger systems with several apps and user types.
OAuth alone is not designed as a complete login protocol. For user authentication, teams usually add OpenID Connect, which builds on OAuth and provides identity claims. A specialist can help choose the right approach so login and authorization do not get mixed up.
Yes, OAuth work is often well suited to remote collaboration because much of it depends on specifications, environment setup, and test flows. The important part is access to documentation, identity settings, and a clear way to review redirect URIs, scopes, and token behavior. On-site work is only needed when internal security reviews or sensitive environment access require it.
A good OAuth freelancer explains the flow in plain words, asks about clients and API boundaries, and spots risks early. Look for clear choices around grant type, PKCE, refresh tokens, and scope design rather than vague claims. Strong work also includes documentation and handover notes your team can keep using.
For OAuth, practical experience with real integrations matters more than abstract theory. The best specialists have worked on API authorization, SSO, identity provider setup, and debugging redirect or token issues across browser, backend, and mobile clients. That mix is especially valuable when the system is already in production.
The average hourly rate of freelancers in Austria who have used OAuth 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 Austria who have used OAuth in their recent projects, 86% hold at least a Bachelor's degree and 29% hold at least a Master's degree.
On average, freelancers in Austria who have used OAuth in their recent projects have 18 years of professional experience, with a single engagement typically lasting around 2.6 years.
The most common languages among freelancers in Austria who have used OAuth in their recent projects are German (100%), English (100%), and Spanish (20%).
The most common industries among freelancers in Austria who have used OAuth in their recent projects are Information Technology (100%), Banking and Finance (60%), and Automotive (40%).
The most common business areas among freelancers in Austria who have used OAuth in their recent projects are Information Technology (100%), Product Development (100%), and Quality Assurance (50%).
Main locations of FRATCH Experts, who have recently used OAuth
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.
Countries:
Vienna Graz Request a free demo
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Philipp Thomaschewski
FRATCH CEO
