Jasmine Experts in Cologne
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Meet FRATCH Experts in Cologne, who have recently used Jasmine
Hooman B.
Last position:
Fullstack Developer at Möbel Roller GmbH
- Further development of the existing e-commerce platform based on SAP Commerce (Hybris) to meet the growing demands of digital commerce.
- Ensuring the scalability and performance of the backend, so the platform remained stable and efficient even under heavy user load.
- Development and integration of new OCC REST APIs and services for modular extensions and flexible adjustments, to implement new features quickly.
- Optimization of data flows and interfaces, which significantly improved platform efficiency and system performance.
- Ensuring a maintainable and scalable code base by using Clean Code principles, proven design patterns, and a future-proof architecture.
- Reduction of errors through extensive testing with JUnit, Mockito, and load tests with Gatling, supported by the introduction of automated test processes.
- Improved system performance through targeted refactoring measures and efficient database queries, especially to handle peak loads.
- Use of modern cloud and monitoring tools such as Kubernetes, Google Cloud Platform (GCP), and Grafana to ensure a stable and monitored infrastructure.
- Clear improvement in efficiency, scalability, and reliability of the platform, which now meets the demands of a dynamic and growing e-commerce market.
Hamdi R.
Last position:
Full-Stack AI Developer at Karray-Pflege GmbH
PFS-Matching-App
- Integrated an intelligent LLM chatbot using LangChain4j, enabling conversational AI, context-aware question answering, document summarization, and autonomous tool execution.
- Implemented Retrieval-Augmented Generation (RAG), prompt engineering, and AI agent workflows to connect large language models with enterprise data and backend services.
- Developed RESTful APIs and secure backend services to support AI-driven interactions and business processes
Jens H.
Last position:
#52 Test Manager in Safety-Critical Infrastructure at Telecommunications Company
- Network elements, network, operational and operator-related systems
- Supporting around 20 different products (managed agile)
- Requirements analysis and management (functional and non-functional)
- Test concept and planning (scope, test phases, effort, schedule, resources, organization, etc.)
- Aligning approach with clients and service providers
- Managing and assisting in creation of test cases for system, integration and end-to-end tests
- Guiding and supporting test execution
- Defect management and planning bug fixes with external providers
- Preparing and facilitating workshops
- Regular reporting and creating automated test reports
- Further development of agile testing methodology and configuration of supporting tools
- Conceptual support in developing a quality seal for rating product and service quality of internal and external providers
- Requirements engineering based on ISO/IEC 25010, Scrum, SaFE
- BMC Remedy, Atlassian Confluence, Atlassian Jira (including plugins Xray, Structure), Microsoft Office (incl. Visio), Obsidian, doxis document management system, Gitlab, Obsidian
Jacqueline H.
Last position:
Kitchen Appliance Manufacturer
Setting up and enhancing an international subscription management system
Migrating and decommissioning a Hybris-SAP system and integrating Zuora
Implementing numerous interfaces to various systems (external and internal)
Setting up and improving monitoring with Grafana, Prometheus, and Databricks
Introducing logging with Loki
Implementing business requirements using jQuery, Thymeleaf, Spring Boot, Java, Go, and Python
Adjusting and extending the GitLab CI pipelines
Setting up and extending infrastructure as code with Terraform and ArgoCD on AWS
Setting up and running E2E and performance tests
Expanding the Databricks business intelligence solution to provide various KPIs
Responsibilities: Architecture, DevOps, development, unit tests, coaching employees and apprentices, E2E, smoke, and integration tests, agile methods consulting (Kanban, Scrum)
Technologies and methods: Java, Go, Kotlin, Node.js, Spring Boot, SOAP/REST, Quarkus, Thymeleaf, Vaadin, Slack, Jira, Confluence, IntelliJ, GitLab, SQS, Kafka, AWS, Kubernetes, Terraform, Maven, Gradle, GitLab CI, Databricks
Kay O.
Last position:
Fullstack Developer at INIT GmbH
- Development of monitoring and control systems for public transport
- Development of a platform for real-time monitoring of passenger information and ticketing systems and an application for remote control and status monitoring of access systems
- Development of dynamic forms, complex tables, real-time dashboards (SignalR), and reusable components in the frontend (using Storybook)
- Implementation of REST interfaces in the backend
- Deployment to Microsoft Azure Cloud
- Technologies used: Angular 20, Angular Material 3, Dev Extreme, Storybook, C#/.NET 10
Sara S.
Last position:
Senior Software Developer with a Focus on UI/UX at vGen GmbH
Development of an interactive prototype for the concept of an AI-supported Enterprise Architecture Management tool. The goal was to present complex relationships between IT systems, business processes, and departments in a way that is easy to understand and to support decision-making in the context of IT transformations.
The prototype combined data-driven analyses with guided questions and interactive visualizations. A central part was the integration of a RAG process to provide domain-specific EAM knowledge in context. The focus was on quick idea validation, user-centered interaction design, and the technical feasibility of a scalable overall concept.
Design, implementation, and validation of a RAG process for domain-specific EAM knowledge with Python, LangChain, and graph/vector databases (Neo4J, Milvus)
Business and technical requirements analysis as well as definition of an MVP
Development of the architecture and technology concept using Angular, Spring Boot, GraphQL, and Kubernetes
Design of an interaction concept and creation of a brand style guide with Figma
Development of interactive prototypes with Angular, Konva.js, and TypeScript
Integration of CI/CD processes with GitLab CI/CD
Discover over 15,000 top freelancers
Statistics of experts using Jasmine
Aggregated from the professional profiles of matched freelancers.
Experience
18 years (Germany: 19 years)
Position duration
1.3 years (Germany: 1.7 years)
Positions per freelancer
14 (Germany: 15)
Top business areas
Information Technology, Product Development, Quality Assurance
Top industries
Information Technology, Automotive, Government and Administration
Certification focus areas
Information Technology, Human Resources, Product Development
Bachelor's degree or higher
100% (Germany: 88%)
Master's degree or higher
80% (Germany: 42%)
Certifications per freelancer
2
Most common languages
German, English, French
Speak two or more languages
100%
Based on our profile pool as of 19 Sep 2026.
Daily rate distribution
The chart shows how the daily rates of freelancers in this technology in Cologne 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 Cologne using Jasmine
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 19 Sep 2026. Actual rates may vary depending on seniority level, experience, skill specialization, project complexity, and engagement length.
Jasmine 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 (67%)
- Government and Administration (50%)
- Aerospace and Defense (33%)
- Education (33%)
- Banking and Finance (33%)
- Food and Beverage (33%)
- Healthcare (33%)
Please note that freelancers can work across multiple industries, so percentages overlap.
About the technology
Test suites
Jasmine is a testing framework for JavaScript and TypeScript code. It is used to write clear specs for functions, services, UI logic, and async behavior. Teams often choose it for projects that need readable tests without a heavy setup.
What it covers
- Unit tests for application logic
- Spec files for browser-based JavaScript
- Async code with promises and callbacks
- Mocking and spies for isolated checks
- Regression coverage for legacy code
Ecosystem
Jasmine works well with Karma, Node.js, TypeScript, and modern front-end stacks. Strong specialists know how to fit it into existing build tools, keep test data small, and avoid brittle assertions. In Cologne, companies often ask for help when browser test suites need to stay compatible across teams and release cycles.
When to bring in help
Freelance expertise is useful when tests are slow to trust, coverage is inconsistent, or a codebase still depends on older Jasmine specs. It also helps when a team needs clean migration paths from other test tools, or when a release train needs a stable safety net before changes land.
What good professionals do
A strong Jasmine professional writes tests that describe behavior, not implementation details. They use spies, stubs, and matchers with care, keep naming consistent, and make failures easy to read. They also understand where Jasmine belongs in a broader testing strategy alongside linting, integration checks, and browser automation.
Common hiring signals
- Existing specs are hard to maintain
- Teams disagree on test structure
- Older Jasmine suites need cleanup
- Browser and Node.js tests must align
- Local collaboration in Cologne or remote delivery is needed
Companies hire Jasmine specialists when they need reliable tests that the whole team can understand. The best freelancers leave behind simple patterns, stable fixtures, and a suite that supports future change.
Frequently asked questions
Need clarity? These are the questions we hear most often about Jasmine.
Jasmine is used to write automated tests for JavaScript and TypeScript code. It is a common choice for unit tests, behavior-focused specs, and async checks in browser or Node.js projects. Teams use it when they want readable assertions and a lightweight testing setup.
Jasmine is often chosen for its built-in assertion and mocking style, which keeps many test suites compact. Jest usually offers a broader all-in-one experience, while Mocha is more flexible and often paired with separate assertion tools. The right choice depends on how much structure the team wants and what already exists in the codebase.
A good Jasmine specialist usually knows JavaScript well, and TypeScript is often important too. Experience with spies, async testing, browser tooling, and a runner such as Karma helps a lot. In real projects, knowledge of bundlers, CI pipelines, and front-end frameworks is also useful.
Jasmine work can start with a small amount of context if the codebase is clean and the test patterns are already in place. For older systems, the freelancer needs more time to understand the application structure, test data, and release flow. The more legacy code and flaky tests you have, the more discovery time matters.
Yes, Jasmine work is often well suited to remote collaboration because the core tasks are code review, test writing, and pair work in shared repositories. In Cologne, on-site sessions can still help when a team needs to align on conventions, legacy test suites, or release blockers. Many projects use a mix of both.
You likely need Jasmine help when tests are fragile, slow to maintain, or no longer reflect how the product really behaves. It is also a sign when teams avoid changing old specs because they do not trust the feedback. A freelancer can clean up patterns, improve structure, and make the suite easier to own.
A strong Jasmine professional writes tests that are small, clear, and focused on behavior. Look for good use of matchers, spies, async handling, and naming that tells the story of the feature. Good specialists also explain trade-offs and leave a suite that other experts can maintain without guesswork.
Jasmine can still be a good choice when a team wants a straightforward testing style and already has related tooling in place. It is especially practical for maintaining legacy suites or keeping browser-focused specs consistent. For brand-new work, the best choice depends on the stack, the team’s habits, and the surrounding test strategy.
The average hourly rate of freelancers in Cologne, Germany who have used Jasmine in their recent projects is 92 €, which corresponds to a daily rate of about 739 € based on an 8-hour working day.
Of the freelancers in Cologne, Germany who have used Jasmine in their recent projects, 100% hold at least a Bachelor's degree and 80% hold at least a Master's degree.
On average, freelancers in Cologne, Germany who have used Jasmine in their recent projects have 18 years of professional experience, with a single engagement typically lasting around 1.3 years.
The most common languages among freelancers in Cologne, Germany who have used Jasmine in their recent projects are German (100%), English (100%), and French (33%).
The most common industries among freelancers in Cologne, Germany who have used Jasmine in their recent projects are Information Technology (100%), Automotive (67%), and Government and Administration (50%).
The most common business areas among freelancers in Cologne, Germany who have used Jasmine in their recent projects are Information Technology (100%), Product Development (100%), and Quality Assurance (83%).
Main locations of FRATCH Experts, who have recently used Jasmine
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 
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Philipp Thomaschewski
FRATCH CEO
