ESLint Experts in Germany
to improve JavaScript quality with fast, precise AI matchingHire experts who configure ESLint rules, modernize JavaScript and TypeScript codebases, and integrate linting into CI pipelines. FRATCH matches you quickly with vetted, available freelancers whose skills fit your technical requirements.
Meet FRATCH Experts in Germany, who have recently used ESLint
Khalid E.
Last position:
Lead Architect & Developer at kem-consulting
Development of an agent-based governance platform for the automated assurance of EU AI Act compliance and ODA-compliant orchestration of AI services in complex enterprise environments.
Design and implementation of an agent-based "Mission Control" framework (Aletheia Conductor) for autonomous state monitoring and process control.
Development of "Compliance-as-Code" (CaC) solutions based on OPA/Rego for system-wide enforcement of regulatory guardrails.
Integration of TM Forum ODA standards (TMF630, TMF622, TMF642) to ensure interoperability and standardization.
Building a highly available event-driven architecture using Redpanda and CloudEvents v1.0 for near-real-time event processing.
Implementation of an audit-proof "Evidence Chain" through cryptographic linking of trace logs in preparation for automated audits.
Tech Stack: Java 21 (Quarkus Native), TypeScript (Next.js), Redpanda (Kafka API), CloudEvents v1.0, OPA (Open Policy Agent) & Rego, TimescaleDB, ZincSearch, Redis, TM Forum ODA, Git, GitHub, Clean Code Development, Like-C4.
Carsten R.
Last position:
Enterprise Product Owner at opta data IT GmbH
- Product responsibility for the central platform "one" as a group-wide web-based customer portal
- Coordination of the connection of 20 group companies to the product platform
- Derivation and steering of a group-wide product strategy and roadmap aligned with company goals
- Prioritization and bundling of strategic requirements from the various group companies
- Harmonization of different interests and moderation of complex decision-making processes at management level
- Ensuring the technical and business integration of the product into existing system landscapes, business processes, and business models
- Building transparent governance and decision-making structures for group-wide product development
- Representation of the product towards internal and external stakeholders at leadership level
Naveed M.
Last position:
Senior frontend developer at freelancer
Built charts for historical data, alarms, and downtime, plus enhanced interactive tables to efficiently track and compare oil-well performance. Eliminated 80% of high/medium security risks (Checkmarx) for the app. Optimized charting libraries, cutting usage from to 300–400MB for large data sets.
Thilo K.
Last position:
Senior Frontend Web Developer at Zeppelin GmbH
Selection and evaluation of different frontend frameworks for a headless CMS
Consulting the UI/UX team on the design system
Technologies:
Figma
Design Token
Tailwind
Storybook
React
NextJs
Strapi
AJAX
Confluence
CSS3
Docker
Eslint
Git
GraphQL
HTML5
IntelliJ/WebStorm
JAM Stack
Jasmine
Jenkins
Jira
JSON
JSX
Mocha
Native JavaScript (ES6)
NodeJS
Prettier
REST
REST APIs
SCSS
SSR
StyleGuides
SVG
TypeScript
Webpack
Ibrahim H.
Last position:
Senior Full Stack / AI Engineer at Punktum Digital GmbH
- Context: Healthcare and laboratory teams required faster document analysis, treatment-planning support, and reliable AI workflows for MR/VR-assisted operations.
- Contribution: Built the AI healthcare platform, model/agent workflows, VR-glasses deployment platform, REST APIs, Next.js/React interfaces, and CI/CD pipelines.
- Impact: Delivered a production-ready AI product foundation that improved clinical document review, supported laboratory automation, and made VR fleet deployment manageable across environments.
Tech: TypeScript, Next.js, Node.js, React, Java, Spring Boot, Python, PyTorch, TensorFlow, Docker, PostgreSQL, OpenAPI, GitLab, GitHub Actions.
Reginald L.
Last position:
ERP System Redesign (web-based)
PHP and React redesign of a web-based ERP system.
- Development of the header and parts of the navigation
- Development of various modules in React, e.g. calendar, chat, and various tables
Ingo K.
Last position:
Co-Founder & Managing Director at Elterngeld Buddy GmbH
- Responsible for the entire software architecture of the parental allowance portal
- iOS and Android app with React Native and Expo, incl. push and OTA updates
- Store releases via App Store Connect and Google Play Console
- TypeScript monorepo for app, website and backend, web with Next.js and Tailwind
- Own promo, voucher and discount engine with contact and segment logic
- Payments via RevenueCat and in-app purchases, authentication with BetterAuth
- REST APIs based on OpenAPI, PostgreSQL with Prisma and Drizzle
- Self-hosting on Hetzner with Docker, Coolify, Terraform and GitHub Actions
- Tests with Vitest, Playwright and visual regression via Chromatic
- Observability via Grafana Cloud and error tracking with Sentry
- Performance marketing via Meta Ads, measured with custom event tracking
- Grew the product to 20,000 app users with a purchase rate of almost 12 %
- Managing Director since 04.2025, responsible for product and technology
Niklas G.
Last position:
Senior Full Stack Developer at L1R1 technologies GmbH
- Migrated the Billomat API integration to InvoiceNinja API, boosting system reliability by 33% for 1300 users.
- Established an ESLint configuration with Husky and lint-staged, resulting in a 23% decrease in code review issues and refined code consistency across 5 repositories.
- Improved team processes by refining the Kanban workflow.
- Optimized frontend performance, built a new CI/CD pipeline, and implemented AWS resource monitoring to strengthen deployment reliability and system observability.
Alois R.
Last position:
Senior Fullstack Developer at brandung GmbH
- Opt-in RAG extension over tenant-owned data sources (SharePoint, Confluence) on existing multi-tenant enterprise AI platform
- Architecture: ADRs, solution evaluations, permission strategy, cost modeling
- End-to-end SharePoint and Confluence connectors: OAuth consent flows, token refresh, metadata sync, search integration
- Permission resolution: ACL indexing at ingestion and query-time verification (document-level security)
- Elasticsearch hybrid search (semantic + keyword) with RRF scoring
- RAG chat with context injection and source citations
- Stack: Elastic Cloud, Elasticsearch, Docker, Northflank, Next.js, React, TypeScript, Prisma, Microsoft Graph API, Atlassian REST API, OAuth 2.0
Kamran A.
Last position:
Frontend Developer at elio GmbH
- Developed custom frontend designs for clients like Cube, Douglas, and Leuze using HTML, SCSS, JavaScript (ES6), TypeScript, Vue.js, Twig, and Smarty.
- Customized and implemented themes for Shopware 5 and 6 e-commerce websites.
- Managed client communication, crafted project concepts, and provided ongoing support.
- Improved code quality and team efficiency through optimized Git workflows and regular QA.
- Supported other developers and addressed daily client inquiries.
Mathis D.
Last position:
Senior Web/Frontend Developer at KemCom GmbH
- Modernized the homepage of a luxury residential building for a better user experience and contemporary design
- Developed and implemented the website and modules using current web technologies
- Optimized for SEO to improve visibility in search engines
- Created a modern and professional appearance that enhances the building's image
- Increased efficiency in content maintenance by using a CMS
- Technologies: HTML5, HTML, CSS3, CSS, JavaScript, Umbraco, C#, .NET
Stefan D.
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 K.
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.
Lloyd N.
Last position:
Lead Frontend Developer at AnzaKen
- Sole owner of all frontend architectural decisions, technology choices, component structure, build pipeline, and standards across the AnzaKen website and product builds
- Built production React components and coached a junior developer through component patterns, state management, and modern frontend practices via pair programming and code review
- Built products and internal tooling with React and Next.js using Claude Code, RAG pipelines, and AI guardrails, emphasizing maintainability, API integration, and delivery speed
- Participated in client pitches and discovery meetings, scoped technical needs, advised on feasibility, and shaped proposals
- Stack: React, TypeScript, Next.js, Node.js, Python, FastAPI, PostgreSQL, Claude Code, RAG, Vercel, Render
Rodrigue K.
Last position:
Fullstack Development at Bavarian State Office of Taxes
- Performed an as-is analysis of the existing Oracle application Express Admin interface
- Created a requirements analysis for the React admin interface to be developed
- Developed the new VAT admin interface using React and TypeScript (frontend) as well as Java 17, Spring Boot, and Hibernate (backend)
- Conducted final training, including training materials, to transfer knowledge to the client’s employees and ensure they can independently maintain and extend the software
- Produced detailed technical documentation
- Tools: KONSENS-AppKit, SPA, React, TypeScript, REST API, unit testing, Java, JavaScript, Node, HTML5, CSS3, UI/UX, Spring Boot, OpenAPI, JSON, Oracle DB, GitHub CI/CD, Playwright, UML, Gradle
Discover over 15,000 top freelancers
Statistics of experts using ESLint
Aggregated from the professional profiles of matched freelancers.
Experience
16 years
Position duration
1.8 years
Positions per freelancer
13
Top business areas
Information Technology, Product Development, Quality Assurance
Top industries
Information Technology, Banking and Finance, Retail
Certification focus areas
Information Technology, Product Development, Project Management
Bachelor's degree or higher
90%
Master's degree or higher
33%
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 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 ESLint
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.
ESLint 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%)
- Banking and Finance (70%)
- Retail (57%)
- Healthcare (43%)
- Automotive (37%)
- Manufacturing (33%)
- Education (30%)
- Media and Entertainment (30%)
Please note that freelancers can work across multiple industries, so percentages overlap.
About the technology
What ESLint does
ESLint is a static analysis tool for JavaScript and TypeScript. It scans source files for syntax problems, unsafe patterns, inconsistent style, and rules defined by a project or organization. As a configurable JavaScript linter, it helps teams catch issues before code review, testing, or deployment.
Where it fits
ESLint supports browser applications, Node.js services, shared packages, command-line tools, and full-stack JavaScript systems. It can enforce conventions across React, Vue, Angular, Svelte, and standard ECMAScript projects while supporting both JavaScript and TypeScript workflows.
- Flag errors and risky patterns during local development
- Apply consistent formatting and code conventions
- Prevent regressions through pull-request checks
- Introduce project rules without blocking useful delivery
Ecosystem and setup
Strong ESLint work includes flat configuration, shareable configs, plugins, processors, and custom rules. Specialists commonly connect it with TypeScript, Prettier, framework plugins, package managers, editors, Git hooks, and CI systems such as GitHub Actions or GitLab CI. They also understand rule migration and configuration boundaries in monorepos.
When companies need help
Companies often bring in freelance expertise when a codebase has inconsistent conventions, noisy lint results, slow checks, or a difficult migration. Support is also useful when introducing TypeScript, consolidating several front-end packages, replacing legacy configuration, or making linting reliable across local and automated environments.
- Audit an existing configuration and remove obsolete rules
- Create a practical rule baseline for a new codebase
- Migrate configuration while keeping feedback actionable
- Add lint checks to pull requests and release pipelines
What strong professionals deliver
Experienced professionals distinguish defects from personal style preferences. They choose rules that reflect the codebase, explain exceptions, and keep autofixes safe. Their deliverables may include configuration files, custom plugins, migration notes, CI integration, editor guidance, and documentation that other contributors can maintain.
Working with specialists in Germany
ESLint projects can usually be handled remotely when the repository, CI environment, and review process are accessible. For teams in Germany, clear written English or German communication may matter alongside knowledge of the existing JavaScript stack. On-site collaboration is most useful during broader engineering enablement or a sensitive platform migration.
A sound engagement starts with the repository structure, current configuration, package tooling, and known pain points. Quality is visible in focused rules, stable CI checks, useful explanations, and a configuration that improves maintainability without creating constant false positives.
Frequently asked questions
Not sure where to start with ESLint? These answers cover the essentials.
ESLint analyzes JavaScript and TypeScript source code against configurable rules. Companies use it to find defects, enforce conventions, guide refactoring, and stop preventable issues from reaching review or production.
ESLint focuses mainly on code quality, possible errors, and maintainable patterns, while Prettier focuses on consistent formatting. They work well together when formatting rules are separated from rules that require developer judgment.
A strong ESLint specialist usually understands JavaScript, TypeScript, package management, Git workflows, and CI automation. Experience with React or another framework, Prettier, monorepos, and custom plugins is useful when linting spans several packages.
A focused ESLint configuration may need only a clear understanding of the repository and its coding standards. Larger migrations, custom rules, or monorepos call for a professional who can assess legacy patterns, control rollout risk, and explain decisions to the wider team.
ESLint work is often suitable for remote collaboration because configuration, code review, and CI results are visible in the repository. Teams in Germany should agree on communication language, review routines, access permissions, and working hours before the engagement begins.
A company may need an ESLint freelancer when lint checks are unreliable, the configuration has become difficult to maintain, or a TypeScript or framework migration is underway. External expertise can also help establish rules and rollout steps without distracting the internal team from product work.
ESLint supports shareable configurations, plugins, and custom rules for organization-specific practices. A specialist should first confirm that a rule is measurable and valuable, then document exceptions and provide safe fixes where automation is appropriate.
Good ESLint work produces useful findings rather than a large volume of warnings. Ask for evidence of a clean migration plan, stable CI behavior, understandable configuration, low false-positive rates, and documentation that lets the team maintain the setup.
The average hourly rate of freelancers in Germany who have used ESLint in their recent projects is 88 €, which corresponds to a daily rate of about 704 € based on an 8-hour working day.
Of the freelancers in Germany who have used ESLint in their recent projects, 90% hold at least a Bachelor's degree and 33% hold at least a Master's degree.
On average, freelancers in Germany who have used ESLint in their recent projects have 16 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 ESLint in their recent projects are German (100%), English (100%), and French (13%).
The most common industries among freelancers in Germany who have used ESLint in their recent projects are Information Technology (100%), Banking and Finance (70%), and Retail (57%).
The most common business areas among freelancers in Germany who have used ESLint in their recent projects are Information Technology (100%), Product Development (100%), and Quality Assurance (67%).
Main locations of FRATCH Experts, who have recently used ESLint
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
