Serilog Experts in Germany
for reliable .NET logging, matched with vetted specialists in minutesHire experts who configure structured logging, enrich events across ASP.NET Core services and connect Serilog to sinks such as Seq, Elasticsearch or Grafana Loki. Get precise, fast matching with vetted and available freelancers.
Meet FRATCH Experts in Germany, who have recently used Serilog
Marc H.
Last position:
Senior Architect, Coach and Developer
Fixing issues in the program logic
Covering the changes with unit tests
Analyzing and documenting the data structure of the various applications
Analyzing and documenting the parameters for configuring the applications
Analyzing and documenting the measures required to ensure the operation of the applications
Analyzing and designing the separation of the individual database structures
Analyzing and estimating the effort for planned extensions
Analyzing, maintaining and documenting a heterogeneous legacy system landscape for a print media service provider
Technology: C#, VB.NET, C, Python, Microsoft SQL Server, Visual Studio 2010, JetBrains Rider, Visual Studio Code, arc42, Draw.io, Jira, GitLab
Johannes K.
Last position:
Software Developer at Hoffmann Engineering Services GmbH
- Software development
- Technical design of software architecture and design (considering functional and non-functional requirements)
- Frontend and Backend
- Refactorings
- Code reviews
- Unit tests
- Automated integration tests
- E2E tests
Global Identity Services (GIS) is the identity provider for the Digital Services Platform (DSP). GIS is responsible for authenticating and authorizing end users and other DSP services by issuing security tokens. This includes:
- Identity management (e.g., user registration, password reset and change, user profiles)
- Management of roles and permissions
- Single Sign-On (SSO) across DSP services
- Management of OAuth resources and terms and conditions
Oliver F.
Last position:
Modernization of a Multi-Company Backend System at Energy utility company
Further development and modernization of a mature Aspire backend application in the energy utility sector, focusing on new business requirements, testing, legacy code cleanup, and stable backend delivery.
Key Contributions & Results Implemented new business requirements in the context of customer orders, subcontractors, and cross-company backend processes, ensuring consistent workflows across a distributed system landscape. Gradually modernized existing backend components and reduced technical debt through targeted legacy code cleanup, refactoring, and structured code reviews. Improved the testability of business-critical services by expanding automated tests with xUnit, AutoFixture, and clearer validation structures. Supported the further development of workflow automation and integration processes through microservices, messaging, and API-based communication. Took over source code from external companies, systematically assessed code quality, and derived technical improvements for maintainability, stability, and integration. Worked in agile development processes with Jira, Confluence, and Azure DevOps and supported cross-team coordination on architecture, quality, and implementation. Technical Metrics Technologies & Methods C#, .NET, ASP.NET, ASP.NET Core, Aspire, Docker, RabbitMQ, gRPC, REST API, Swagger, Microservices, NServiceBus, AutoMapper, Autofac, xUnit, AutoFixture, FluentValidation, Entity Framework Core, MediatR, Redis, Consul, Serilog, SonarQube, Azure DevOps, Azure Monitor, GitLab, Google Protocol Buffers, IronPDF, Mailjet, Jira, Confluence, Miro, Agile Development, Scrum, Code Reviews, Refactoring, Legacy Code Cleanup, Workflow Automation, Power Grids
Hicham M.
Last position:
Freelance Software Developer at Buhl Data Service GmbH
- Backend development: .Net 8, C#, PostgreSQL, Entity Framework Core, REST Web APIs, Docker, Kubernetes, Kafka, Open API Swagger, Apache Airflow, Resharper, Git, Microservices, SOAP, gRPC, Hangfire, OAuth 2, GraphQL
- Interface development for document processing with SmartFix, Softexpansion and Natif.ai: C#, REST API, Resharper, Git
- Deployment: Azure DevOps YAML, Vanilla Helmchart, Rancher, Kubernetes Cluster, Linux Docker, Windows VM, Python
- Unit tests and integration tests
- Telemetry, Kibana, Grafana, Elastic Search
- Work in a Kanban team of 8 developers, 1 tester and one Product Owner
Holger K.
Last position:
Data Migration Sage 100 to Odoo at LRT Automotive
- SQL database development, design, documentation of procedures, functions, and triggers
- Migration of data from the Sage Line 100 database to Odoo
- DB design with MS SQL Server and SQL (T-SQL)
- Use of Power Query and Excel
Manuel R.
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
Julian K.
Last position:
Software Analysis in Gaming at dzkraken.com
- Development of a plug-and-play solution for game server operators to collect, process, and display game server data
- Integration of a subscription-based payment system
- Technologies: C#-10, .NET5, SQL, .NET8, PostgreSQL, Angular, JavaScript, TypeScript, CSS, Entity Framework, TailwindCSS, OIDC, JWT, Stripe, OAuth2.0, Docker, Testing, Portainer, PowerShell
Glenn K.
Last position:
Lead Software Architect at knowledgepark GmbH
- Leading an eight-member team with a focus on actively promoting an agile mindset
- Supporting the introduction of Scrum within the team
- Planning, designing, and implementing the macro architecture of a distributed system landscape
- Documenting self-contained systems, microservices, and legacy applications
- Integrating third-party software components
- Special attention to scalability and reliability
- Ensuring traceable processes through event sourcing
- Developing multiple ASP.NET and Blazor applications in C# using .NET 5 to 8
- Applying strategic methods from Domain-Driven Design (DDD)
- Decoupling modules using the Mediator pattern (MediatR) and CQRS
- Continuously ensuring code quality through Test-Driven Development (TDD)
- Conducting code reviews via pull requests and pair programming
- Optimizing data storage and access with MS SQL Server, Redis, and EF Core
- Reducing costs and wait times through caching and automatic scaling
- Implementing background jobs using Hangfire
- Developing and integrating REST APIs
- Integrating RabbitMQ and NServiceBus for communication between systems
- Securing various REST APIs and web UIs with OAuth2/SAML/SSO and JWTs
- Developing cross-team technology standards
- Introducing architecture methods in agile teams
- Applying software craftsmanship and Extreme Programming (XP) principles
- Ensuring software quality according to ISO 25010 standards
- Implementing DevSecOps practices
- Migrating various legacy on-premises applications (Azure Stack & IIS) to Azure Cloud
- Modernizing existing application (from .NET Framework 3 & 4)
- Leading containerization with Docker and subsequent migration to Kubernetes
- Introducing and optimizing CI/CD pipelines
- Monitoring production systems using Serilog, Prometheus, Grafana, and Application Insights
- On-call duty and implementing automated error detection
- Analyzing and fixing issues in production as 3rd level support
- Coaching and upskilling working students, interns, and other developers
- Designing and delivering internal training sessions
- Conducting event storming and user story mapping sessions
- Supporting the product owner with technical matters
- Optimizing workflows in Azure DevOps Services
- Requirements engineering in cooperation with relevant business units and domain experts
Jamal B.
Last position:
Freelance Software Architect & Developer at IBM Deutschland GmbH / BWI GmbH
- Architecture, design and further development of a hybrid solution consisting of a Java backend with REST API and C# / WPF frontend
- Development of secure, distributed functions for classified message processing, categorization and encryption
- Integration of backend services with document management systems (DMS) for structured file storage
- Planning, setup and continuous optimization of Azure DevOps pipelines for automated deployment and quality assurance of distributed applications in a security-critical environment
- Technical coordination with Bundeswehr project managers and third-party providers of relevant software and interfaces, and documentation of the developed solutions
Discover over 15,000 top freelancers
Statistics of experts using Serilog
Aggregated from the professional profiles of matched freelancers.
Experience
19 years
Position duration
1.4 years
Positions per freelancer
16
Top business areas
Information Technology, Product Development, Quality Assurance
Top industries
Information Technology, Manufacturing, Education
Certification focus areas
Information Technology, Product Development, Quality Assurance
Bachelor's degree or higher
63%
Master's degree or higher
38%
Certifications per freelancer
1
Most common languages
German, English, Arabic
Speak two or more languages
89%
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 Germany 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.
Average rates of experts in Germany using Serilog
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.
Serilog 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%)
- Manufacturing (89%)
- Education (56%)
- Banking and Finance (56%)
- Transportation (56%)
- Government and Administration (56%)
- Automotive (33%)
- Media and Entertainment (33%)
Please note that freelancers can work across multiple industries, so percentages overlap.
About the technology
Structured logging for .NET
Serilog is a diagnostic logging library for the .NET ecosystem. It records structured events instead of relying only on unstructured text, so applications can attach properties such as request IDs, user actions, service names and exception details. Teams use it in ASP.NET Core APIs, worker services, background jobs and distributed systems where reliable investigation matters.
Sinks and event pipelines
Serilog separates event creation from event storage through sinks. Specialists select and configure destinations such as console output, rolling files, Seq, Elasticsearch, OpenSearch, Grafana Loki, SQL databases and cloud monitoring services. They also manage JSON formatting, enrichers, filters, minimum levels and environment-specific configuration without exposing sensitive data.
Common implementation work
- Introduce Serilog into an existing .NET application without disrupting current diagnostics
- Define event properties and consistent message templates across services
- Route events to Seq, Elasticsearch, files or cloud observability tools
- Add correlation IDs for tracing requests across APIs and background processes
- Build dashboards, alerts and retention rules around useful log data
Good implementations make logs searchable and comparable across a system. They avoid duplicated events, unclear severity levels, noisy framework output and message templates that hide important context.
When companies need specialists
Companies often bring in freelance expertise when a .NET service has grown beyond basic console logging, when production incidents are difficult to reconstruct or when several services produce inconsistent records. A specialist can plan a migration, review an existing setup, improve performance and document standards for internal teams. This is relevant to German organisations running customer portals, industrial systems, financial applications and business software, whether collaboration is remote or includes on-site workshops.
Ecosystem skills
Strong Serilog work usually includes practical knowledge of C#, .NET, ASP.NET Core dependency injection and configuration providers. Experience with OpenTelemetry, distributed tracing, Docker, Kubernetes, CI/CD pipelines and observability tools helps when logs must connect with metrics and traces. In Germany, teams may also value clear English for technical delivery and German for workshops, documentation or coordination with local stakeholders.
What quality looks like
A capable professional starts with the questions the logs must answer, not with a preferred sink. They establish a useful event schema, select appropriate levels, preserve exceptions, handle personal or confidential data safely and test logging under failure conditions. They understand asynchronous writing, buffering, file rotation, storage costs and fallback behaviour. Quality is visible in precise search results, stable correlation across services, readable configuration and documentation that another team can maintain.
Frequently asked questions
Curious about Serilog? Here are the answers that come up again and again.
Serilog is used to create structured log events for applications, services and background processes built with .NET. It helps teams search by properties such as order ID, request ID or service name instead of parsing plain text. A specialist can connect these events to files, Seq, Elasticsearch, OpenSearch or other observability systems.
Serilog is a logging implementation with a broad sink and enrichment ecosystem, while Microsoft.Extensions.Logging provides the common abstraction used by .NET applications. They work together: an application can use the Microsoft interfaces while Serilog handles event creation and routing. The right choice depends on required structure, destinations, filtering and operational controls.
A strong Serilog specialist usually also understands C#, ASP.NET Core, dependency injection and application configuration. Experience with OpenTelemetry, correlation IDs, Docker, Kubernetes and systems such as Seq or Elasticsearch is useful for distributed applications. Data protection and secure handling of sensitive fields are equally important.
The required level depends on the scope. Serilog can be added to a small service with straightforward configuration, but a migration across many services needs experience with event schemas, sink reliability, performance and operational ownership. Ask for examples of comparable .NET systems and the decisions made around filtering, enrichment and retention.
Serilog projects are often suitable for remote collaboration because configuration, code changes and validation can be reviewed in repositories and shared environments. On-site sessions can still help when teams need workshops on logging standards or incident response. Agree on documentation, working language, access rules and release processes before the engagement starts.
No. Serilog provides logs, while metrics and traces answer different operational questions. A well-designed observability setup connects log events with OpenTelemetry traces and service metrics through shared identifiers, giving teams both detailed context and a broader view of system behaviour.
Review whether Serilog produces consistent, searchable events with useful context and preserved exception details. Quality also includes safe treatment of personal data, sensible minimum levels, reliable delivery, controlled file rotation or retention, and tests for failure paths. Ask the specialist to explain trade-offs rather than only showing configuration files.
Common Serilog problems include duplicated providers, excessive event volume, inconsistent property names, missing correlation data and secrets written to logs. Poorly chosen sinks can also block application work or lose events during failures. A careful implementation defines ownership, filters noisy sources and tests behaviour under load and degraded storage.
The average hourly rate of freelancers in Germany who have used Serilog in their recent projects is 90 €, which corresponds to a daily rate of about 721 € based on an 8-hour working day.
Of the freelancers in Germany who have used Serilog in their recent projects, 63% hold at least a Bachelor's degree and 38% hold at least a Master's degree.
On average, freelancers in Germany who have used Serilog in their recent projects have 19 years of professional experience, with a single engagement typically lasting around 1.4 years.
The most common languages among freelancers in Germany who have used Serilog in their recent projects are German (100%), English (89%), and Arabic (22%).
The most common industries among freelancers in Germany who have used Serilog in their recent projects are Information Technology (100%), Manufacturing (89%), and Education (56%).
The most common business areas among freelancers in Germany who have used Serilog in their recent projects are Information Technology (100%), Product Development (100%), and Quality Assurance (67%).
Main locations of FRATCH Experts, who have recently used Serilog
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 Dortmund Essen Bremen Dresden Hanover Nuremberg Request a free demo
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Philipp Thomaschewski
FRATCH CEO
