API Gateway Experts in Berlin
in minutes from over 15,000 CVs with the power of AIHire experts who design API routing, authentication, rate limiting, and service policies for cloud platforms and microservices. Work with specialists who know Kong, Apigee, AWS API Gateway, and NGINX-based setups, matched fast with vetted, available freelancers.
Meet FRATCH Experts in Berlin, who have recently used API Gateway
Marina Kornilova
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.
Unnikuttan Velamkudy Vijayan
Last position:
Managing Director (Co-Founder) at AathmaSignals
- Spearheading investor outreach and partnership development as founding MD, building the business case and technical narrative needed to attract initial funding and strategic collaborators in the digital health space
- Designing multi-agent AI systems for autonomous biosignal analysis, orchestrating LLM-based reasoning pipelines with domain-specific medical context to enable intelligent, clinical decision support
Qaiser Abbasi
Last position:
Freelance Lead DevOps Engineer at Schwarz Gruppe Produktion
Bootstrapping a CloudOps team and building a multi-cloud provider backend for a low-code Internal Developer Platform (IDP) with env zero
Introducing user story mapping, ADRs, milestones, and backlog management
Designing and developing core APIs, setting up CI/CD pipelines, OpenTofu/Terraform scripts
Representing and communicating the team with third-party stakeholders (e.g. env zero)
(Cross-)team coaching on DevOps, software design, Terraform, Golang, and agile practices
Vili Dhamo
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
Jorge Pérez Suárez
Last position:
Software Engineer – AWS and Kubernetes Specialist at Citti
- Creation, maintenance and hardening of Kubernetes clusters employing Ansible and ArgoCD
- Keywords: Ansible, AWX, Kubernetes, NetApp, Prometheus, CI/CD ArgoCD, SSO, Fluent-bit, HAProxy, Calico, Keycloak, oauth2-proxy, SealedSecrets, kubeseal, Aqua kube-bench, CIS-Benchmarks, Aqua Trivy operator
Fady Kuzman
Last position:
Senior Software Developer / Tech Lead at Specific Objects Technologies GmbH
- Project 1: Multi-Tenant SaaS Platform: Data Integration & Pricing Management
- Objective: New development of ELT pipeline (replacement for Java 6 legacy), integration of heterogeneous source systems (CSV, Excel, Email, external DBs), event-sourcing for complete auditability, multi-tenant architecture for tenant-capable data processing
- Challenge: Processing millions of records daily, audit compliance, data isolation between different tenants
- Solution: Stakeholder workshops for requirements analysis, event-driven architecture with Axon Framework and Apache Kafka, AWS services (EC2, S3, Lambda, SQS, API Gateway) for cloud integration, PostgreSQL with tenant-specific schemas for multi-tenant data isolation, REST API design with Spring Boot for external system integrations, comprehensive testing strategy (JUnit, Spring Test, Postman, PACT, ArchUnit)
- Results: ELT performance improved from 30+ min to 1-5 min; 2-3 hours daily saved through workflow automation; 10-20 hours/week saved through event-sourcing auditability; 100% audit compliance; secure multi-tenant data isolation for 10+ tenants
- Project 2: Multi-tenant CRM System Modernization
- Objective: Migration of CRM system (20+ years PHP/MySQL) to Java microservices, Domain-Driven Design implementation, establishment of Test-Driven Development, multi-tenant-capable SaaS architecture for multiple customer tenants
- Challenge: Remodeling complex business logic, no existing test culture, scalable tenant management with data isolation
- Solution: Comprehensive testing strategy (JUnit, Spring Test, Postman, PACT, ArchUnit), multi-tenant architecture with tenant-specific databases, REST API design with Spring Boot for cross-tenant integration, Kubernetes and Docker for container orchestration
- Results: 2× performance improvement; deployment time reduced from 40+ min to 5-7 min; migration without production outages; scalable multi-tenant solution for 15+ customer tenants
- Technologies: Java, Spring Boot 3.x, Angular, Apache Kafka, AWS (EC2, S3, Lambda, SQS, API Gateway), PostgreSQL, Axon Framework, Kubernetes, Docker, GitLab CI, REST API
Tino Truppel
Last position:
Director Technology at Forte Digital Germany
- Leading 20+ staff in development, site reliability engineering, and architecture.
- Leading the group-wide agentic AI initiative (Norway, Poland, Germany).
- Hands-on solution architect and AI consultant for over 50% of my working time on client projects in the publishing sector – from local publishers to international corporations.
- Strategic consulting and technical implementation of AI workflow platforms (n8n, Workato).
- Developing prototypes for traditional, AI-based, and agentic AI workflows.
Khaled Mohamed
Last position:
Senior/Staff Backend Engineer at Heycar (Mobility Trader GmbH)
- Heycar is a leading automotive platform redefining the used car market through intelligent data pipelines, multi-tenant services, and dealer-focused tooling. I led initiatives across backend architecture, data ingestion, and identity management to enhance scalability, reliability, and developer productivity.
- Ingestion Platform: Designed a unified ingestion platform with YAML-based configuration, enabling new dealer data pipelines to be onboarded without code changes, cutting setup time from ~2 months to 2-3 days and improving scalability by 40%.
- Keycloak Leadership: Acted as the company's Keycloak expert, scaling it for multi-tenant identity management and extending functionality with custom plugins and delegated admin APIs.
- Back-Office Tooling: Developed a back-office application integrated with Salesforce, enabling dealers to manage inventory, convert leads, and handle support requests in real time.
- Multi-Tenant Migration: Collaborated across backend teams to migrate Heycar's core services into a unified multi-tenant cluster, ensuring high availability.
- Frontend CI Optimization: Optimized monorepo delivery by implementing CircleCI dynamic config with NX, deploying only affected UI projects and drastically cutting build times.
- Observability & Mentorship: Enhanced monitoring and release reliability while mentoring backend engineers and improving code review standards.
Sanju Barla
Last position:
Portfolio for Content Management System (Flask, SQLAlchemy, Bootstrap)
- Created a CMS-driven portfolio app for showcasing projects with user authentication, CRUD operations, and Guest Mode.
- Designed and implemented full-stack architecture using Flask, SQLAlchemy, and Bootstrap 5.
- Integrated secure authentication and CSRF protection mechanisms.
- Deployed production-ready web app using Docker and Railway.
- Achieved full project cycle completion: design, development, testing, deployment, and documentation.
- Demonstrated Agile development principles and industry-standard software engineering practices.
Haseeb Ahmad
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
Discover over 15,000 top freelancers
Statistics of experts using API Gateway
Aggregated from the professional profiles of matched freelancers.
Experience
15 years (Germany: 16 years)
Position duration
2.7 years (Germany: 2.3 years)
Positions per freelancer
8 (Germany: 11)
Top business areas
Information Technology, Product Development, Quality Assurance
Top industries
Information Technology, Automotive, Education
Certification focus areas
Information Technology, Product Development, Quality Assurance
Bachelor's degree or higher
100% (Germany: 96%)
Master's degree or higher
60% (Germany: 61%)
Doctorate
10% (Germany: 9%)
Certifications per freelancer
3
Most common languages
German, English, Hindi
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 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 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
API Gateway sits between clients and backend services. It controls how requests enter your system, then forwards them to the right service with the right rules. Teams use it to keep APIs consistent across web apps, mobile apps, partners, and internal tools.
Common setups
- Central entry point for REST and GraphQL APIs
- Authentication, authorization, and token validation
- Routing, throttling, caching, and request transformation
- API versioning for public and internal services
- Observability with logs, metrics, and tracing
Ecosystem
Strong specialists work with Kong, Apigee, AWS API Gateway, Azure API Management, and NGINX-based gateway layers. They also understand OpenAPI, OAuth 2.0, JWT, mTLS, and service mesh boundaries. The right choice depends on cloud, traffic shape, governance, and how much policy control the team needs.
When to bring in help
Companies usually seek freelance expertise when an API layer is being introduced, replaced, or cleaned up after rapid growth. This is common in Berlin teams shipping SaaS, fintech, media, and marketplace systems, where many services and partners need stable API access. Remote work is often fine, but on-site sessions can help with architecture reviews and security decisions.
What strong specialists deliver
A good API Gateway specialist does more than connect endpoints. They define routing rules, protect sensitive services, reduce duplicated logic in backends, and keep error handling predictable. They also document policies clearly so product, security, and platform teams can work from the same setup.
Signs you need one
- Requests are routed in different ways across teams
- Security rules live inside multiple services
- New APIs are slow to publish or hard to govern
- Traffic spikes cause uneven behavior at the edge
- The gateway layer needs a redesign or migration
Frequently asked questions
Before you brief your next project: the most common questions about API Gateway.
A API Gateway sits in front of services and handles routing, authentication, throttling, and request shaping. It helps teams expose stable APIs while keeping backend services simpler. It is common in systems with many clients, partners, or microservices.
A API Gateway handles traffic at the edge, where external or client-facing requests enter the system. A service mesh focuses more on service-to-service communication inside the cluster or network. Many teams use both, but they solve different problems.
A strong API Gateway specialist knows API design, security, and cloud networking, not just one product. They should be comfortable with OpenAPI, OAuth 2.0, JWT, logging, tracing, and policy design. Experience with Kong, Apigee, AWS API Gateway, or Azure API Management is often valuable.
Bring in a API Gateway specialist when you are starting a new gateway, migrating from a legacy setup, or fixing inconsistent API policies. It also helps when multiple teams publish APIs and need shared rules. Outside help is useful if the current setup is hard to secure or hard to maintain.
Most API Gateway work can be done remotely because the core tasks are configuration, review, and integration. On-site time in Berlin can help when teams need to align on security, platform boundaries, or rollout planning. A hybrid setup is often the best fit.
Ask which gateway products they have implemented and how they handle authentication, versioning, and observability. For API Gateway work, it also matters whether they can explain trade-offs between managed cloud services and self-managed gateways. Clear answers should include how they test and roll out changes.
A API Gateway expert often works with platform, backend, and security specialists at the same time. They define edge policies, then align them with service owners so the gateway does not become a second place for business logic. Good collaboration keeps responsibilities clear.
Look for practical examples, not just product names. A strong API Gateway specialist can explain why they chose a specific routing, auth, or caching approach and how they handled failures. They should also be able to show clean documentation and a safe migration path.
The average hourly rate of freelancers in Berlin, Germany who have used API Gateway in their recent projects is 85 €, which corresponds to a daily rate of about 683 € based on an 8-hour working day.
Of the freelancers in Berlin, Germany who have used API Gateway in their recent projects, 100% hold at least a Bachelor's degree, 60% hold at least a Master's degree, and 10% hold a doctorate.
On average, freelancers in Berlin, Germany who have used API Gateway in their recent projects have 15 years of professional experience, with a single engagement typically lasting around 2.7 years.
The most common languages among freelancers in Berlin, Germany who have used API Gateway in their recent projects are German (100%), English (100%), and Hindi (20%).
The most common industries among freelancers in Berlin, Germany who have used API Gateway in their recent projects are Information Technology (100%), Automotive (50%), and Education (40%).
The most common business areas among freelancers in Berlin, Germany who have used API Gateway in their recent projects are Information Technology (100%), Product Development (100%), and Quality Assurance (80%).
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.
Munich 
Cologne 
Frankfurt 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
