Sentry Experts in Germany
in minutes from vetted, available specialists with the power of AI.Hire experts who set up Sentry release tracking, error grouping, performance monitoring, and alert routing for web apps, APIs, mobile apps, and backend services. Get fast, precise matching with vetted, available freelancers.
Meet FRATCH Experts in Germany, who have recently used Sentry
Sanju Raj Prasad
Last position:
Software Developer at Senior Connect GmbH
- Created complex backend systems (Fastapi Python, GCP cloud functions, APIs, integration tests) using Typescript.
- Worked with firebase and firestore databases, implementing transactional operations, scheduling jobs, and migrations.
- Implemented GCP dashboards for thorough monitoring and custom alerts in case of anomaly traffic.
- Implemented Sentry for better debugging, error tracking and overall monitoring of the Next.js frontend.
- Implemented story tests for UI related testing.
- Implemented Typesense in Python Fastapi backend, for improved text based searching along with typo handlings.
Matthias Voit
Last position:
Senior Frontend Developer / Technical Web Architect – Consent Management
Project for a leading German email and cloud service provider: As Senior Frontend Developer and Technical Web Architect, I developed an international, multi-tenant white-label consent management layer for several brands.
Main tasks:
- Architecture and implementation with Vue 3, TypeScript, and Vite
- Development of automated tests with Vitest and Playwright
- Creation of brand-specific CMP configurations, CSS themes, i18n structures, and vendor settings
- Implementation of the playout and initialization logic as well as backend integration
- technical decision support, project and code documentation
Impact: Replacement of external CMP solutions with a reusable and long-term maintainable in-house base for several international brands and rollouts.
Technologies: Vue 3, TypeScript, Vite, Vitest, Playwright, IAB TCF, Google Additional Consent, i18n, Git, CI/CD.
Stefan Rösch
Last position:
Business Analyst at Galeria
- Independently managed the POS tender for in-store catering.
- Structured requirements gathering (functional and technical).
- Created a management-ready specification to guide decisions for leadership and IT.
- Market overview of relevant POS providers.
- Close coordination with Galeria's IT and business departments.
Viktor Shcherban
Last position:
AI Engineer (Freelance) at Empion
Enterprise AI content categorization and AI-powered web research.
- Built multi-LLM evaluation framework with annotated data
- Iterated LLM error rates based on annotated datasets
- Implemented AI-powered web research pipeline Stack: LLM, evals, OpenRouter, Python, Node.js, TypeScript, React
Serge Kalinin
Last position:
MLOps (machine learning operations) at REWE Digital GmbH
- It is like a startup within REWE, where we have to build a new forecasting system on Google Cloud Platform from the scratch. Although, officially my role is called MLOps, my actual tasks also include development of data processing pipelines (data engineering) and data scientists tasks such as feature engineering and model trainings.
- GCP: Terraform (tofu), Vertex AI (Kubeflow), Cloud Run, IAM, Google Cloud Storage, BigQuery, Artifact Registry
- Data engineering: Snowflake as the main data warehouse, Terraform, DBT for data model implementations
- CI/CD: GitLab. We have built a CI/CD pipeline that automates deployments of new releases up to production environment
Patrick Eichler
Last position:
Honorary Lecturer at SRH University Berlin
- Cloud Computing Fundamentals & Architecture: Expertise in core cloud concepts, including the three main Service Models (IaaS, PaaS, SaaS) and diverse Deployment Models (Public, Private, Hybrid, Multi-cloud).
- Modern Application Deployment Strategies (GCP Focus): Instruction on the GCP Application Hosting Spectrum, covering Virtual Machines, Containers (Kubernetes and Cloud Run), Platform as a Service (App Engine), and Serverless Computing (Functions as a Service - FaaS).
- Data Management & Big Data Analytics: Comprehensive coverage of Cloud Storage options (Object, Block, File) and Database solutions, including Relational (Cloud SQL), NoSQL (Firestore, BigTable, Memorystore), and serverless enterprise data warehousing (BigQuery).
- DevOps and Infrastructure Automation: Skills in DevOps principles, including Continuous Integration (CI), Continuous Delivery (CD), Infrastructure as Code (IaC) using tools like Terraform, and implementing effective Monitoring and Logging for system observability.
- Emerging Technologies & Responsible Cloud Use: Focus on crucial topics like Cloud and IoT Security, Identity and Access Management (IAM), data privacy, and the ethical considerations of cloud and massive data collection.
Manuel Reinfurt
Last position:
Cloud Architect & Lead Developer
- Responsible for the 5-head development team and Scrum + DevOps approach
- Designed and implemented the cloud architecture for the application landscape
- Lead development for the user management on Azure Cloud using .NET 8/C#
- Development for the user management frontend using React (TypeScript)
- Technologies: Azure AD, Functions, Storage, CosmosDB, Service Bus, AKS, Monitor, Pipelines, Key Vault, MSSQL, Bicep, App Service, Log Analytics, Application Insights, Cost Management
- Backend: .NET/C#; Frontend: Angular (TypeScript)
- Unit testing: NUnit, xUnit, Moq
- CI & CD: Azure DevOps, GitHub Actions, GitLab CI
- DevOps & IaC: Bicep, Terraform, Docker, Kubernetes
- Security & Compliance: ISO 27001, DevSecOps
- Software development approach: Scrum, SAFe, Kanban
Stefan Dietz
Last position:
Frontend Developer – Sports Event and City Portal Projects at München Betriebs GmbH
- Development of an accessible, responsive website based on Figma designs for a major sports event in compliance with WCAG, BITV, and EN 301 549
- Technical planning and setup of the tool stack with Vite, Playwright, Docker, and GitLab CI
- Worked on two existing projects (Vue.js & Nuxt), with a focus on bug fixing, accessibility audits, and new feature development
- Collaboration with design and QA to consistently implement accessible UI patterns
- Consulting on improving existing frontend architectures with regard to accessibility, performance, and maintainability
Hüseyin Korkut
Last position:
Senior Full-Stack Engineer at DVAG
Architecture and implementation of a fully digitalized closing flow for managing securities contracts within the DVAG infrastructure. The platform aims for maximum user-friendliness, modular extensibility and compliant handling of sensitive data.
Implementation of a reactive UI structure with a focus on user guidance & accessibility.
Dynamic control of form and closing processes including validation logic.
Reactive state management via SignalStore (signals + selective effects).
UX optimization through adaptive components and Playwright-based UI tests.
Backend modularization to connect existing sales and contract logic.
API stability and DTO design according to Clean Architecture principles.
Collaboration with domain teams to define technical contracts and service boundaries.
Management with GitHub.
Unit tests with Jest, E2E tests with Playwright.
Code reviews, CI-integrated test execution, iterative refactorings.
Ensuring high coverage and UI stability in the closing flow.
Technologies: Angular 18, RxJS, SignalStore, HTML5, SCSS, Spring Boot, Kotlin, REST, OAuth2, Jest, Playwright, Clean Architecture.
Matthias Zarzecki
Last position:
Senior Flutter Developer at Materna
- Developed a Flutter app for eID ID card logins
- Focus: Flutter, iOS, eID, AusweisAppSDK, Mason, Keycloak, Agentic Coding, Arc42, Jenkins
Piotr Kuczyński
Last position:
Senior Software Engineer at On
- Built middleware service integrating EDI providers and marketplace partners with Microsoft Dynamics 365 to receive sales orders and communicate shipments, invoices, inventory, and price catalogues
- Utilized a mixture of REST APIs and event-driven data processing pipelines
Ivan Greguric-Ortolan
Last position:
Technical Lead at Porsche Digital GmbH
- Contributed to the design of the new financial services integration layer and moderated the architectural discussions
- Oversaw the security concept and approval of the application
- Prepared infrastructure setup and best practices for the Kotlin backend
Paul Köhler
Last position:
Senior Flutter Developer at Elea.health
- Further development of a complex laboratory information system
- Development of new features including design
- Close collaboration with company leadership
- Embedded in a top team with consistently high performance under time pressure
- Agile approach, Kanban
Paulo Andrade
Last position:
Founder and Product Lead at Muvuca Solutions
- Lead a climate tech consultancy end to end, coordinating cross-functional teams, owning client strategy and project management, and delivering ESG strategies and AI-first products.
- Stay hands-on across discovery, analytics, roadmapping, architecture, and QA to safeguard execution quality.
- Designed, developed, and launched Jody, an AI travel planner (demo credentials provided).
Stefan Baust
Last position:
Senior Full Stack Developer / Co-Founder / CTO / Head of Development at Netprint Development & Solutions GmbH
Overall technical responsibility for innovative SAP Customer Checkout solutions at leading clients such as Aramark, Consortium Gastronomie, Feinkost Käfer, TSG Hoffenheim, and VfB Stuttgart. Full support from requirements analysis to implementation and support.
Successful conception and development of the NDS SmartPOS platform ("Läufer App"):
Designed the software architecture and implemented it according to Modern Android Development principles.
Led a small development team (1 Android expert, 1 working student) with a 50% in-house development share.
Integrated various payment SDKs (S-Payment S-POS, VR Payment, CCV), enabling clients to achieve significant cost savings by reusing existing contracts.
Successfully rolled out to multiple major clients, resulting in demonstrably increased efficiency of sales staff.
Independently developed and successfully implemented critical infrastructure components:
Reporting server (SQL, JasperReports): Measurable reduction in accounting effort by eliminating daily manual transfers into the ERP system.
ZVT plugin: Solely implemented the serial protocol with Java/Netty over TCP/IP, saving several thousand euros per location and successfully deployed in multiple Bundesliga stadiums.
Completely in-house development of specialized plugins and server applications for custom functionality extensions of SAP Customer Checkout:
Waiter Teams Plugin: Allows waiters to work and settle bills in teams.
SQL reporting: Realized from conception to full documentation independently.
RFID payment solution for employee cards: Responsible for the complete development cycle.
Integration with reservation services: Designed seamless connections to Luca and other services, implemented together with a team member.
Direct technical on-site support for clients, including rapid troubleshooting in real-time environments with high transaction volumes and close coordination with stakeholders to continuously improve the systems based on practical experience.
Discover over 15,000 top freelancers
Statistics of experts using Sentry
Aggregated from the professional profiles of matched freelancers.
Experience
15 years
Position duration
1.8 years
Positions per freelancer
10
Top business areas
Information Technology, Product Development, Quality Assurance
Top industries
Information Technology, Retail, Banking and Finance
Certification focus areas
Information Technology, Product Development, Project Management
Bachelor's degree or higher
88%
Master's degree or higher
62%
Doctorate
12%
Certifications per freelancer
2
Most common languages
English, German, Russian
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 Germany 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 Germany using Sentry
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
Error tracking
Sentry helps teams see crashes, exceptions, and failed requests in one place. It is used to capture issues early, group related problems, and trace them back to the release or code path that caused them. Strong specialists know how to turn noisy alerts into clear, actionable reports.
What it covers
- Frontend and backend error monitoring
- Performance tracing for slow endpoints and transactions
- Mobile crash reporting for iOS and Android
- Release health and regression detection
Sentry is often part of the daily workflow for products that need stable production monitoring, not just local testing.
Ecosystem and setup
Sentry works through SDKs, source maps, tags, and alert rules. Experts connect it to JavaScript, Python, Java, .NET, PHP, and mobile stacks, then tune sampling, grouping, and notifications so the team gets useful signals. They also align it with CI/CD, logs, and issue trackers when the setup is more mature.
When companies need help
Teams bring in freelance Sentry professionals when alerts are too loud, issues are poorly grouped, or release data is incomplete. This is common during migrations, new product launches, and platform rewrites. In Germany, remote collaboration is often enough, but on-site work can help when product, QA, and engineering need tight coordination.
What good specialists do
A strong Sentry specialist understands both observability and the codebase behind it. They can read stack traces, trace spans, configure source maps, and separate real incidents from expected noise. They also write clear handover notes so internal teams can keep the setup healthy.
Typical outcomes
Sentry expertise usually leads to cleaner triage, faster root-cause analysis, and better release confidence. It also improves how teams discuss bugs because the evidence is already attached to the issue. Searchers may also use the name sentry.io, especially when they are looking for the product rather than the broader observability category.
Frequently asked questions
Need clarity? These are the questions we hear most often about Sentry.
Sentry is used to track errors, crashes, and performance problems in production systems. Teams rely on it to see what failed, where it failed, and which release introduced the problem. It is common in web apps, APIs, and mobile products that need clear incident data.
Sentry is more focused on application errors and issue-level debugging than broad infrastructure observability. Compared with Datadog or New Relic, it is often easier to use for tracing exceptions back to code and releases. Compared with logs-only setups, it gives better grouping and more direct developer context.
A strong Sentry specialist usually understands release pipelines, source maps, distributed tracing, and the language or framework the product uses. They should also be comfortable with alert design, issue triage, and debugging patterns in production. For larger systems, knowledge of logs and APM tools helps a lot.
For Sentry, the right level depends on the scope. A smaller setup may need someone who can configure the SDK, verify source maps, and clean up alerts. A larger rollout needs deeper experience with sampling, transaction naming, grouping rules, and release correlation.
Yes, Sentry work is often done remotely because the main tasks are configuration, debugging, and review of traces and issues. For teams in Germany, remote collaboration is usually practical if the specialist can join meetings in English or German as needed. On-site support can still help during rollout or incident reviews.
A good Sentry freelancer explains why alerts happen, not just how to silence them. Look for clear decisions on grouping, tags, source maps, environment separation, and release tracking. Strong work leaves the team with a cleaner signal and a setup that is easy to maintain.
Sentry expertise is most useful when error volumes are high, releases are hard to trust, or performance issues are hard to reproduce. It also helps when source maps are broken, mobile crashes are hard to read, or notifications are flooding the team. In those cases, a specialist can turn raw events into useful diagnostics.
No, Sentry is used far beyond JavaScript. It supports many back-end languages, mobile apps, and mixed stacks, which is why it shows up in full product platforms as well as smaller services. The key is to match the SDK and setup to the actual runtime and release flow.
The average hourly rate of freelancers in Germany who have used Sentry in their recent projects is 96 €, which corresponds to a daily rate of about 765 € based on an 8-hour working day.
Of the freelancers in Germany who have used Sentry in their recent projects, 88% hold at least a Bachelor's degree, 62% hold at least a Master's degree, and 12% hold a doctorate.
On average, freelancers in Germany who have used Sentry in their recent projects have 15 years of professional experience, with a single engagement typically lasting around 1.8 years.
The most common languages among freelancers in Germany who have used Sentry in their recent projects are English (100%), German (94%), and Russian (19%).
The most common industries among freelancers in Germany who have used Sentry in their recent projects are Information Technology (100%), Retail (53%), and Banking and Finance (47%).
The most common business areas among freelancers in Germany who have used Sentry in their recent projects are Information Technology (100%), Product Development (100%), and Quality Assurance (47%).
Main locations of FRATCH Experts, who have recently used Sentry
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 Request a free demo
Get in touch with the FRATCH team and we will get back to you within 4 hours.
Would you rather directly get in touch?
We always have the time for a call or email!
Philipp Thomaschewski
FRATCH CEO
