API Gateway Experts in Frankfurt
matched in minutes with vetted, available specialistsHire experts who design gateway layers for microservices, secure public APIs, and connect tools like Kong, Apigee, and Amazon API Gateway. They set routing, auth, throttling, and observability the right way, with fast, precise matching to vetted, available freelancers.
Meet FRATCH Experts in Frankfurt, who have recently used API Gateway
Waseem Sattar
Last position:
Solution Architect / Subject Matter Expert at FRMCS terminal device manufacturer
Participation in the EU-funded MORANE-2 project to validate the Future Railway Mobile Communication System (FRMCS) in real-life use cases: creation of the requirement specifications for TOBA as well as the associated test specifications.
Technologies: 5GS (Radio & Core), FRMCS, MCx (MCPTT, MCData, MCVideo), MC Gateway UE, MCx Priority/Security/QoS Management, ETCS, SIP, IMS
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.
Stefan Voigt
Last position:
Senior Manager Projects at Cognizant Technology Solutions GmbH
- Agile coach and scrum master in property insurance/underwriting for Allianz Technology
- Team 1: Kanban/Scrumban team in DevOps mode – new features, distributed monolith to microservices, reduction of technical debt & refactoring, implementation of CI/CD, expansion of automated testing
- Team 2: SAFe team – greenfield service for global software and German adaptation, AI integration (Cythora)
- Scrum trainings, scrum manuals in Confluence, all ceremonies, establishment of an experimental just culture, team replacement and scaling from 7 to 20
- Requirements engineering, prioritization via business value for product owners, risk identification
- Project budget management, JIRA monitoring and automation, steering committee support, test strategy
- SAFe integration, PI planning, flight levels and road mapping
Anthony Mugwang'a
Last position:
CodeValdCortex - Enterprise Multi-Agent AI Orchestration Platform at Personal Project
- Enterprise-grade multi-agent AI orchestration platform built with Go and Kubernetes for scalable, secure agent coordination in cloud-native environments.
- Multi-agent orchestration with intelligent workload distribution and dynamic scaling.
- Cloud-native architecture with Kubernetes deployment and horizontal auto-scaling.
- Real-time coordination with sub-100ms agent communication using Go channels.
- Enterprise security with zero-trust architecture, RBAC, and comprehensive audit trails.
- Visual workflow engine with monitoring, observability, and API gateway integration.
- Technologies: Go, Kubernetes, ArangoDB, gRPC, Prometheus, Grafana.
Dilip Kumar Jena
Last position:
.NET Technical Lead & Application Architect at Hays AG
- Devised a new Domain-Driven Design architecture for a core system: reverse-engineered a central component, refactored the data-access layer to minimise database round-trips (improving scalability) and migrated processing to async.
- Decomposed the platform into independent .NET Core microservices (database-per-service) with RabbitMQ pub/sub using the Outbox Pattern + Saga choreography, behind an Ocelot API Gateway (JWT, rate limiting, CORS, health checks).
- Delivered on .NET Core / Angular / SQL Server / EF Core with Docker and Azure DevOps CI/CD; implemented health checks and CORS; contributes technical designs for stories in agile Scrum.
- Sole ADR owner; mentored 3 engineers and presented architecture decisions directly to the Director of Corporate IT.
Kevin Meinon
Last position:
Backend & Infrastructure Engineer at Mileo Systems GmbH
- Engineered production-ready Azure environments using Terraform, ensuring consistent infrastructure parity across VNets and Resource Groups
- Implemented Microsoft Fabric tenant and workspace architecture for multi-stage Medallion data processing pipelines
- Designed secure data pathways using Managed Private Endpoints for isolated Azure Storage access
- Managed Service Principals and authentication tokens for secure REST API integrations
Helge Bredow
Last position:
Solution Architect at Deutsche Bahn
- Responsible for the end-to-end application and integration architecture of the Hamburg S-Bahn maintenance digitization program. A highlight is the introduction of robots and fixed camera towers to automate vehicle inspections, allowing AI image algorithms to assess train conditions during operation.
- Deutsche Bahn has one of the largest SAP PM implementations worldwide, which is a key component of this digitization.
Eduard Van Kleef
Last position:
Workshop Leader 'Introduction to AI Development Tools' at Software company in Wiesbaden
- Presentation introducing generic AI and large language models
- Explanation of legal frameworks (EU AI Act, US CLOUD Act, GDPR)
- Systematic review of AI tools along the SDLC and holistic systems
- Comparison of on-prem LLMs vs. cloud-based, as well as change management and works council
- Facilitated the discussion and derived next steps for introducing AI development tools
Anton Rösler
Last position:
AI-Engineer at Publicly traded company, industrial safety technology
- Designed and implemented the agent-based AI architecture for a company-wide platform to securely deploy LLM-based agents
- Designed and implemented end-to-end RAG pipelines from multiple sources: document preprocessing, chunking strategies for different document types, embeddings, retrieval with re-ranking, and robust prompt orchestration
- Developed a modular context engineering framework with skill architecture, context isolation, and dynamic resource management; human-in-the-loop control for enterprise tool integrations
- Built the CI/CD pipeline, testing strategy, tracing on the software side as well as automated LLM and agent evaluations, red team testing and tracing, and handed over to a reproducible production environment (ISO27001 and SOC2 compliant)
Discover over 15,000 top freelancers
Statistics of experts using API Gateway
Aggregated from the professional profiles of matched freelancers.
Experience
16 years
Position duration
2.4 years (Germany: 2.3 years)
Positions per freelancer
9 (Germany: 11)
Top business areas
Information Technology, Product Development, Business Intelligence
Top industries
Information Technology, Banking and Finance, Telecommunication
Certification focus areas
Information Technology, Business Intelligence, Project Management
Bachelor's degree or higher
100% (Germany: 96%)
Master's degree or higher
43% (Germany: 61%)
Doctorate
14% (Germany: 9%)
Certifications per freelancer
3
Most common languages
German, English, French
Speak two or more languages
100% (Germany: 99%)
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 API Gateway
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 it does
An API gateway sits in front of your services and controls how requests enter your system. It handles routing, authentication, rate limits, logging, and versioning. Teams use it to keep APIs consistent and to reduce direct coupling between clients and backend services.
Common setups
- Public REST and GraphQL API entry points
- Microservice routing and request aggregation
- OAuth2, JWT, and API key enforcement
- Traffic control, caching, and transformation rules
- Monitoring, access logs, and error handling
Ecosystem
Companies often work with Kong, Apigee, Amazon API Gateway, Azure API Management, or NGINX-based gateways. Strong specialists know how gateway policies fit with service discovery, identity systems, CI/CD, and container platforms. They also understand when a gateway should stay thin instead of becoming business logic.
When to bring in help
Bring in freelance expertise when you need a new gateway, a migration, or a cleanup of messy API traffic. It is also common during cloud moves, platform hardening, and service mesh rollouts. In Frankfurt, this often matters for finance, logistics, and enterprise teams that need reliable integration across many internal and external systems.
What strong specialists do
Good API Gateway professionals design for clarity, not shortcuts. They document routes, policies, fallback paths, and security rules so teams can operate the gateway without guesswork. They also test edge cases like broken tokens, slow backends, and uneven traffic before the change goes live.
Signs you need one
- Clients call services directly and policies are inconsistent
- Authentication is duplicated across many backends
- Teams struggle to trace failures across API calls
- Releases break consumers because routing and versioning are unclear
- Frankfurt teams need cleaner collaboration between local and remote specialists
Frequently asked questions
Not sure where to start with API Gateway? These answers cover the essentials.
An API Gateway controls how requests reach your services. It is used for routing, authentication, throttling, logging, and sometimes request or response transformation. That makes it useful when many clients need one stable entry point to multiple backends.
A API Gateway focuses on north-south traffic: clients coming into your system. A service mesh is mainly for service-to-service traffic inside the platform, while a reverse proxy is usually narrower and less policy-driven. Many teams use more than one, but they solve different problems.
When people say API Gateway, they may mean Kong, Apigee, Amazon API Gateway, Azure API Management, or an NGINX-based setup. The exact product matters because policy model, deployment style, and cloud integration can differ a lot. A good freelancer should know how to map the business need to the right stack.
A strong API Gateway specialist usually knows authentication, HTTP, TLS, OAuth2, JWT, OpenAPI, and JSON or YAML configuration. They should also understand microservices, container platforms, CI/CD, and observability tools. That mix helps them design something secure and maintainable, not just functional.
A API Gateway project can be simple if you only need one protected entry point. It becomes more demanding when you add many services, multiple environments, or strict security and change control. In those cases, you want someone who has handled policy design, migration, and rollback planning before.
Yes. A API Gateway specialist can usually work remotely because the core tasks are design, configuration, testing, and documentation. On-site time in Frankfurt helps when stakeholder alignment or security review needs face-to-face discussion, but it is rarely required for every step.
A strong API Gateway professional can explain why each route, policy, and auth rule exists. They should show clean configurations, clear naming, safe defaults, and good error handling. Ask for examples of migrations, incident fixes, or hardening work, not just a list of products they know.
Before bringing in a API Gateway specialist, have your service list, auth model, traffic patterns, and deployment target ready. It also helps to know which APIs are public, which are internal, and what has to be logged or protected. With that context, the expert can design the gateway much faster and with fewer surprises.
The average hourly rate of freelancers in Frankfurt, Germany who have used API Gateway in their recent projects is 105 €, which corresponds to a daily rate of about 841 € based on an 8-hour working day.
Of the freelancers in Frankfurt, Germany who have used API Gateway in their recent projects, 100% hold at least a Bachelor's degree, 43% hold at least a Master's degree, and 14% hold a doctorate.
On average, freelancers in Frankfurt, Germany who have used API Gateway in their recent projects have 16 years of professional experience, with a single engagement typically lasting around 2.4 years.
The most common languages among freelancers in Frankfurt, Germany who have used API Gateway in their recent projects are German (100%), English (100%), and French (22%).
The most common industries among freelancers in Frankfurt, Germany who have used API Gateway in their recent projects are Information Technology (89%), Banking and Finance (67%), and Telecommunication (44%).
The most common business areas among freelancers in Frankfurt, Germany who have used API Gateway in their recent projects are Information Technology (100%), Product Development (89%), and Business Intelligence (67%).
Main locations of FRATCH Experts, who have recently used API Gateway
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 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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We always have the time for a call or email!
Philipp Thomaschewski
FRATCH CEO
