Amazon Cognito Experts in Berlin
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Meet FRATCH Experts in Berlin, who have recently used Amazon Cognito
Marina K.
Last position:
Independent Software Developer at LILARAUM
- Independently designed, developed, published, and maintained mobile games for iOS and Android.
- Implemented application architecture, gameplay systems, UI, monetization, analytics, and platform integrations.
- Managed the complete release lifecycle, including testing, store publication, production monitoring, and iterative improvements based on analytics.
Vili D.
Last position:
Technical Lead, Data Engineer at Mercedes-Benz Consulting
- Optimized the data architecture (medallion) to better decouple processing stages and improve transparency and reproducibility
- Ensured technical quality of data processing in Databricks by introducing schema enforcement, data quality checks and a structured data architecture
- Orchestrated pipelines with Azure Data Factory
- Professionalized and automated the development and deployment process by integrating Git and GitHub Actions
- Led the Data Engineering team (3 members) in a functional role
- Conducted workshops to optimize and stabilize the data platform and the development process
- Collected and prioritized new requests, maintained the product backlog
- Technologies: Microsoft Azure (Data Lake, Data Factory), Databricks, Apache Spark (PySpark), Python, SQL, Git, Confluence, Power BI, Power Apps, Dataverse, MS SharePoint, Mural
Muhammad Z.
Last position:
Sr. Mobile Developer at Firsty
- Worked on ideation phase through deployment; managed the team and implemented the core architecture
- Developed Firsty Travel eSim: native eSIM installation with a single click; seamless user authentication; real-time data synchronization; intuitive user interface design; advanced security protocols; integration with third-party services; high performance and scalability
- Developed WIO Business banking app: spend, save, invest, and control entire transaction process
- Technologies: Flutter, iOS, Android Studio
Mohamed R.
Last position:
Software Engineer at Clark
- Led the implementation of a critical backend initiative for the offer teasing feature, resulting in a 10% increase in users actively seeking counter offers.
- Contributed to high-impact features such as instant advice, customer ratings, and automatic contract switching, leading to increased user engagement and conversion rates.
- Built a gRPC service to integrate internal systems with the ERP platform, improving the reliability and observability of data exchange.
- Refactored parts of the legacy Ruby codebase into a more maintainable and scalable Elixir-based architecture.
- Delivered a greenfield project from concept to production on a new stack, integrating with internal services and managing infrastructure setup and deployment.
- Collaborated closely with the front-end team, product managers, and cross-functional team members to ensure the seamless integration of backend features, fostering effective communication and collaboration across disciplines.
- Stack: Ruby, Ruby on Rails, Elixir, OTP, Phoenix, REST, GraphQL, gRPC, PostgreSQL, AWS, Cognito, Lambda, SNS, SQS, Terraform, Helm, Docker, CI/CD, Grafana, Prometheus, Git, Agile Methodology.
Haseeb A.
Last position:
Full Stack Ruby on Rails Developer at FINLINK
- Delivered MVP for strategic enterprise client including core Links banking APIs and interest rate calculations
- Integrated German banking APIs for automated credit checks
- Built lead distribution system that improved sales team efficiency by 40%
- Developed microservices architecture for mortgage offer generation from multiple banks
- Automated document verification process for customer KYC and income validation
- Implemented GDPR-compliant consent management for customer data protection
- Deployed and managed services using Kubernetes with custom YAML configurations
- Wrote comprehensive test coverage using Rspec ensuring code reliability
- Reduced customer onboarding time by 30% through workflow optimization
Robert H.
Last position:
Senior Software Engineer at Zalando SE
Discover over 15,000 top freelancers
Statistics of experts using Amazon Cognito
Aggregated from the professional profiles of matched freelancers.
Experience
15 years
Position duration
2.5 years
Positions per freelancer
8
Top business areas
Information Technology, Product Development, Project Management
Top industries
Information Technology, Automotive, Banking and Finance
Bachelor's degree or higher
100%
Master's degree or higher
40%
Doctorate
20%
Certifications per freelancer
1
Most common languages
German, English, Arabic
Speak two or more languages
100%
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 Amazon Cognito
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.
Amazon Cognito 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 (50%)
- Banking and Finance (50%)
- Manufacturing (33%)
- Retail (33%)
- Tourism (33%)
- Advertising (17%)
- Aerospace and Defense (17%)
Please note that freelancers can work across multiple industries, so percentages overlap.
About the technology
Identity setup
Amazon Cognito is used to add sign-up, sign-in, and access control to apps without building a full identity stack from scratch. It fits customer-facing products, internal tools, and API-backed services that need secure login, token handling, and user lifecycle rules.
Core building blocks
- User pools for authentication and account management
- Identity pools for AWS credential access
- Social and enterprise sign-in through federation
- MFA, password policy, and token configuration
- App client, callback, and logout setup
Where it shows up
Teams bring in Cognito for mobile apps, single-page apps, and backend services that need controlled access to data. In Berlin, it is common in product teams that want a managed identity layer while keeping tight control over AWS-native architecture and release flow.
What strong experts do
A strong Cognito professional understands OAuth flows, JWTs, federated identity, and how user claims move through an application. They know how to connect it cleanly with API Gateway, Lambda, ALB, or custom backends, and they spot edge cases early.
When freelance help matters
Companies usually look for freelance expertise when login breaks after a release, when federation must be added, or when an app needs a safer auth design. The right specialist can review an existing setup, repair token flow issues, and simplify a messy configuration without changing the product roadmap.
Ecosystem and delivery
Cognito work often sits beside IAM, CloudFront, API Gateway, Lambda, and IaC tools such as Terraform or CloudFormation. Good delivery includes clear auth flows, documented settings, test accounts, and a handover that makes future changes easier for the next specialist.
Frequently asked questions
Not sure where to start with Amazon Cognito? These answers cover the essentials.
Amazon Cognito is used to handle sign-up, sign-in, password resets, multi-factor authentication, and token-based access for apps. It is a common choice when a team wants managed identity for web, mobile, or AWS-backed services without building everything itself.
Cognito is usually chosen when the app is already close to AWS and the team wants native integration with services like API Gateway or Lambda. Auth0 often feels broader and more opinionated for identity workflows, while Keycloak is a self-hosted option that gives deeper control but also more operational work.
A strong AWS Cognito specialist should understand OAuth 2.0, OpenID Connect, JWTs, and federation with social or enterprise identity providers. They should also be comfortable with IAM, API security, and the client-side login flow in web or mobile apps.
A good Amazon Cognito freelancer can start with a small set of inputs: app type, identity providers, backend stack, and the desired sign-in flow. The more complex the setup, the more they need details about user roles, token claims, and how access is enforced across services.
Yes, most Cognito work can be done remotely because the core tasks are configuration, code review, and flow design. For Berlin teams, remote collaboration usually works well if the specialist can join planning calls, share clear changes, and test against a staging environment.
If sign-in keeps failing, token claims are confusing, or federation does not work across apps, Amazon Cognito may need a specialist review. Outside help is also useful when an old setup was copied forward and no one is sure which settings still matter.
A good AWS Cognito setup is clear, documented, and easy to change without breaking login. Look for clean app client settings, sensible token lifetimes, proper MFA choices, and an auth flow that matches the product instead of forcing workarounds.
A solid Amazon Cognito delivery usually includes the configured user pool or identity pool, integration notes, tested login flows, and handover documentation. In many cases, you should also expect cleanup of edge cases such as refresh tokens, callback URLs, and role mapping.
The average hourly rate of freelancers in Berlin, Germany who have used Amazon Cognito in their recent projects is 84 €, which corresponds to a daily rate of about 669 € based on an 8-hour working day.
Of the freelancers in Berlin, Germany who have used Amazon Cognito in their recent projects, 100% hold at least a Bachelor's degree, 40% hold at least a Master's degree, and 20% hold a doctorate.
On average, freelancers in Berlin, Germany who have used Amazon Cognito in their recent projects have 15 years of professional experience, with a single engagement typically lasting around 2.5 years.
The most common languages among freelancers in Berlin, Germany who have used Amazon Cognito in their recent projects are German (100%), English (100%), and Arabic (17%).
The most common industries among freelancers in Berlin, Germany who have used Amazon Cognito in their recent projects are Information Technology (100%), Automotive (50%), and Banking and Finance (50%).
The most common business areas among freelancers in Berlin, Germany who have used Amazon Cognito in their recent projects are Information Technology (100%), Product Development (100%), and Project Management (67%).
Main locations of FRATCH Experts, who have recently used Amazon Cognito
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:
Berlin 
Hamburg Munich Cologne Frankfurt Stuttgart Dusseldorf Leipzig Dortmund Essen Bremen Dresden Hanover Nuremberg Request a free demo
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Philipp Thomaschewski
FRATCH CEO
