Android Experts in Dortmund
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Meet FRATCH Experts in Dortmund, who have recently used Android
Laurin H.
Last position:
Software Architect (Freelance) at Care4Sure
- Delivered MVP-focused full-stack architecture for a health-sector client: Vite/React frontend, backend services on Google Cloud Run, and Supabase for database plus IAM/authentication.
- Supported product requirements engineering and prioritized cost-aware workload placement, implementing browser-side/edge computation where feasible before moving logic to backend services.
Kersten L.
Last position:
Lead Architect / Lead Developer at Bettles: Sports Betting Platform
- Complete greenfield rebuild across the whole stack — built AI-native: backend in Go and NestJS, PostgreSQL (CNPG) on K3s with GitOps/Terraform; frontend on Angular 22, zoneless.
- Orchestrated coding agents (e.g. Claude Code, Cursor) across the entire lifecycle — architecture, implementation, testing, reviews, documentation — driven by Specification-Driven Development (SDD).
- “Bruno” — LLM commentator persona backed by RAG and MCP for a personality that stays consistent across all generations (match previews, post-match reports, his own virtual bets).
Angular 22 (zoneless, without Zone.js), Claude Code, Claude Code Skills, CNPG, Cursor, Design Tokens (Spec for Code), Docker, Gherkin, Git, GitLab, GitOps, Go, Google Gemini, Grafana, Hetzner Cloud, K3s, Keycloak, Kubernetes, Lighthouse, LLM Integration, Model Context Protocol (MCP), NestJS, Node.js, NPM, Playwright, PostgreSQL, Prometheus, RAG, REST, Specification-Driven Development (SDD), Structured Outputs, Terraform, TypeScript, Vitest
Jens S.
Last position:
Network Technology at ISP, Internet Service Provider, BGP Peering
- Optimization of the transmission media of the data links in the Ruhr area
- Configuration/expansion of switches and routers for an autonomous system AS
- Improve the network protocols used Layer 2/3 (OSI model), RSTP, broadcast, etc.
- Laying cables, crimping, antennas, routers, switches
- Maintenance, expansion, selection and prioritization of troubleshooting measures for network monitoring (PRTG, The Dude)
- Organization and new connection of another BGP peering, data center, NGN fiber optic
- VPN IPSec site connections for 6 sites with PFSense, Fritzbox
- Configuration of WLAN devices (Mikrotik, UBNT
Label: TCP/IP, VLAN, BGP, OSPF, MPLS, VPLS, routing protocols, WLAN, EoIP, PPPoE, routing, SNMP, DHCP, DNS, NAT, native IP, VLAN, Ethernet, VoIP., switches and routers from: Nortel, Cisco, MikroTik, UBNT., network management systems: The Dude, PRTG, UISP
Rafael K.
Last position:
Senior Android Developer / Team-Lead at IBM Deutschland
- Further development and release support for a white-label ePA component for health insurance companies
- Technologies: Android (Kotlin), Kotlin Multiplatform, Coroutines, Jetpack Compose, MVVM, StateFlow, Gradle, ProGuard
Jan-Niklas F.
Last position:
Founder at Freundt Consulting GmbH
- Porsche AG (2018 – 12/2019): Design and development of native iOS apps in motorsport/Formula E (e.g. travel app and enterprise warehouse management with SAP integration) and e-mobility (Porsche Taycan; development of a native Microsoft Excel data export).
- StarFinanz / Sparkasse (05/2019 – 07/2021): Worked on the banking app (FinTS, HBCI, PSD2, Apple Pay); implemented Apple Pay; implemented a new TAN method; worked with the FinTS backend (PSD2); opened bank accounts via app (eID, VideoID, Authada); designed a new, modern banking experience.
- eBay Classifieds and Adevinta (07/2021 – 06/2023): Packaging & Pricing (premium features for business customers): e.g. markdown; company page; advertising options; multi-tenant design system based on SwiftUI and UIKit.
- Maschinensucher (07/2023 – 12/2023): Fullstack mobile (Android, iOS) and backend (PHP, Yii, Elastic Search) development; implemented search agent push notifications, InstantSearch, and modernized the design.
- Bankverlag (02/2024 - Present): Consulting and fullstack development of white-label apps (iOS / Android / Java Spring Boot) for private banks.
Henning P.
Last position:
Siemens
- Developed a reporting API with RESTful services and Spring Boot
- LDAP integration
- Migrated services to AWS
- Bootstrap
- Frontend development with Angular 14
- JBoss
- DynamoDB
- S3
- Athena
Discover over 15,000 top freelancers
Statistics of experts using Android
Aggregated from the professional profiles of matched freelancers.
Experience
23 years (Germany: 18 years)
Position duration
1.8 years (Germany: 2.9 years)
Positions per freelancer
23 (Germany: 12)
Top business areas
Information Technology, Product Development, Operations
Top industries
Information Technology, Automotive, Education
Certification focus areas
Human Resources, Information Technology, Product Development
Bachelor's degree or higher
100% (Germany: 90%)
Master's degree or higher
40% (Germany: 48%)
Certifications per freelancer
3 (Germany: 2)
Most common languages
German, English, Spanish
Speak two or more languages
100% (Germany: 96%)
Based on our profile pool as of 29 Oct 2026.
Daily rate distribution
The chart shows how the daily rates of experts in this technology in Dortmund are distributed, based on recent contracts on our platform. Each bar covers a rate range — its height shows the share of experts charging within that range.
Discover detailed Android rate benchmarks:
Explore rate insightsAverage rates of experts in Dortmund using Android
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 29 Oct 2026. Actual rates may vary depending on seniority level, experience, skill specialization, project complexity, and engagement length.
Android 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 (83%)
- Education (83%)
- Healthcare (83%)
- Banking and Finance (67%)
- Insurance (67%)
- Manufacturing (67%)
- Media and Entertainment (67%)
Please note that freelancers can work across multiple industries, so percentages overlap.
About the technology
Native Mobile Engineering for the Android Ecosystem
Android powers millions of smart devices, industrial handhelds, and consumer smartphones worldwide. Building for Google Android requires deep familiarity with the Android SDK, the Android Open Source Project baseline, and runtime environments across varied form factors and hardware architectures.
Core Technologies and Modern Architectural Patterns
Modern native projects demand clean system architecture and reactive programming paradigms. Specialists establish modular codebases that scale smoothly across teams.
- Kotlin Coroutines and Flow for asynchronous data streams
- Declarative user interfaces using Jetpack Compose
- Dependency injection with Dagger and Hilt
- Offline storage through Room and SQLite
- Network layers using Retrofit, OkHttp, and gRPC
Industrial and Logistics Integration in Dortmund
The economic landscape around Dortmund and the Ruhr valley relies heavily on digital supply chains, retail hubs, and industrial automation. Local initiatives often require native applications for rugged mobile devices, barcode scanners, and telematics systems operating in warehouses and transportation hubs.
Native Development Versus Cross-Platform Frameworks
While cross-platform toolkits offer fast multi-platform prototyping, native engineering remains essential for demanding workloads. Direct control over memory allocation, background execution services, Bluetooth Low Energy peripherals, and near-field communication ensures optimal battery efficiency and hardware performance.
Typical Project Engagements for Mobile Freelancers
Organizations engage external mobile professionals during critical phases of product lifecycles:
- Migrating imperative XML views to modern Jetpack Compose layouts
- Refactoring legacy Java codebases into idiomatic Kotlin
- Integrating proprietary peripheral devices via custom SDKs
- Resolving complex memory leaks and rendering bottlenecks
- Implementing automated CI and CD release pipelines via Gradle
Defining Quality in Production Android Engineering
Distinguished professionals write defensive code that gracefully handles Android lifecycle state changes, low memory conditions, and offline connectivity. They enforce comprehensive unit and UI test suites using JUnit, Mockk, and Espresso, ensuring stable production releases across fragmented device ecosystems.
Frequently asked questions
Curious about Android? Here are the answers that come up again and again.
Senior Android professionals demonstrate deep expertise in modern Kotlin, reactive architectures, and Jetpack components. They handle device lifecycle nuances effortlessly, optimize memory consumption, and maintain clean separation of concerns using architectural patterns such as MVVM or MVI.
Building native Google Android apps provides unrestricted access to hardware features, real-time background processing, and optimal execution speed. Projects involving complex hardware peripherals, intense graphics, or strict battery constraints consistently benefit from native development over cross-platform wrappers.
Most Android OS specialists in Dortmund work in hybrid setups, joining technical planning sessions on site while conducting deep implementation sprints remotely. Fluent English is standard for codebases and issue tracking, while German proficiency is frequently available for localized stakeholder alignment.
Kotlin is the official, preferred language for modern Android SDK development. It eliminates entire classes of runtime errors through built-in null safety and drastically simplifies asynchronous concurrency using coroutines, making it the primary choice over legacy Java.
Companies throughout Dortmund and the surrounding industrial corridor deploy Android solutions for warehouse logistics, field service operations, and smart manufacturing. Specialized handheld terminals and telematics devices require direct hardware integration that native code delivers best.
Strong freelancers establish automated testing using Espresso and Robolectric, configure strict static analysis with tools like Android Lint and detekt, and trace performance bottlenecks using Android Studio profilers to prevent frame drops and memory leaks.
Yes, experienced Android specialists routinely audit established Java architectures to design incremental migration paths toward Kotlin and Jetpack Compose. This modular strategy ensures steady feature delivery while steadily reducing technical debt.
A capable freelancer managing an Android Open Source Project derivative or commercial app configures Gradle build variants, signs artifacts securely, and automates testing pipelines. They also manage Google Play Console deployments and internal distribution tracks seamlessly.
The average hourly rate of freelancers in Dortmund, Germany who have used Android in their recent projects is 94 €, which corresponds to a daily rate of about 749 € based on an 8-hour working day.
Of the freelancers in Dortmund, Germany who have used Android in their recent projects, 100% hold at least a Bachelor's degree and 40% hold at least a Master's degree.
On average, freelancers in Dortmund, Germany who have used Android in their recent projects have 23 years of professional experience, with a single engagement typically lasting around 1.8 years.
The most common languages among freelancers in Dortmund, Germany who have used Android in their recent projects are German (100%), English (100%), and Spanish (50%).
The most common industries among freelancers in Dortmund, Germany who have used Android in their recent projects are Information Technology (100%), Automotive (83%), and Education (83%).
The most common business areas among freelancers in Dortmund, Germany who have used Android in their recent projects are Information Technology (100%), Product Development (100%), and Operations (67%).
Main locations of FRATCH Experts, who have recently used Android
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 
Hamburg 
Munich 
Cologne 
Frankfurt 
Stuttgart 
Dusseldorf 
Leipzig 
Essen 
Nuremberg Request a free demo
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Philipp Thomaschewski
FRATCH CEO
