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Java Experts

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Hire experts who deliver Java backends, Spring Boot services, cloud-native applications and enterprise integrations. FRATCH matches you quickly and precisely with vetted, available freelancers whose skills fit your technical needs.

Meet FRATCH Experts who have recently used Java

Verified expert

André G.

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Consultant for Architecture, Automation and AI in SMEs | Embedded to Strategy | Certified AI Officer

Wiesbaden
André G.

Last position:

Financial Reporting Consultant at Client anonymized (services sector)

Financial reporting as an MVP. Follow-up assignment.

  • Reports on profit and loss, balance sheet and cash flow
  • Budget and personnel metrics (FTE)
  • Implementation as an MVP with a fixed scope
Verified expert

Alwin G.

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IT Director

Essen
Alwin G.

Last position:

IT Interim Manager & AI Strategist

  • Founder of CheironX: AI-supported GRC management (ISO 27001, BSI IT-Grundschutz, TISAX, DORA)
  • Strategic focus on Agentic AI and GenAI for modern IT Governance, Risk & Compliance Management
  • IT interim management and strategic consulting
Verified expert

Michael H.

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Senior IT Project & Program Manager / Interim Manager

Schönau am Königssee
Michael H.

Last position:

Interim Head of IT / Transformation Manager at A German medium-sized industrial distributor, B2B e-commerce

Agile Transformation: introducing agile principles and transforming traditional IT departments into Scrum and Kanban teams

IT Operating Model: redesigning the IT organization and introducing modern delivery structures and roles

Flight Levels: building up Flight Levels practices within IT to align strategy, coordination and operational execution

Leadership & Coaching: recruiting Agile Coaches and coaching Scrum Masters and IT leaders

ERP Operations: acting as Interim Product Owner for the existing ERP landscape and ensuring business continuity

ERP Transformation: reorganizing and supporting the ERP migration as a Project Manager; Phase 1 (financial accounting) live since October 2025

Operational Core (ERP): establishing dedicated teams for ERP Support, Feature Development, and ERP Migration

Modern Workplace: initiating the transition towards a Microsoft 365-based cloud workplace environment

Integration: establishing a dedicated team to drive integration and connectivity initiatives

Warehouse Operations: building a cross-functional team to support logistics and warehouse-related capabilities

Maintenance & Operations (M&O): introducing a dedicated team for system engineering, security, stable operations and continuous improvement

AI Initiatives: identifying and promoting practical Artificial Intelligence use cases across the IT department

As Interim Head of IT for a German medium-sized industrial distributor, I am responsible for 31 IT employees and lead the digital and organizational transformation, reporting directly to executive leadership. I took over an IT department with almost no basic structures – no clear roles, processes, documentation or ticket system – and with significant technical debt that tied up most of its capacity. Introduced agile principles and ways of working in the IT organization and transformed the traditionally structured IT department into cross-functional Scrum and Kanban teams focused on transparency, collaboration, and customer value delivery.

Redesigned the entire IT organization by establishing a modern operating model, introducing new roles such as Product Owner, Scrum Master and Solution Architect and strengthening the organization through strategic hiring and targeted capability development. Recruited and onboarded Agile Coaches to accelerate the transformation and personally managed and coached Scrum Masters as well as IT department leaders to foster servant leadership, self-management and a culture of continuous improvement.

Aligned IT-internal planning across eight teams to three Flight Levels based on Klaus Leopold (strategy, coordination, team), laying the foundation for later company-wide portfolio management. Consolidated the backlog of more than 10 workstreams and prioritized it by business value and cost of delay. Introduced a ticketing system to increase transparency and enable data-driven decision-making, flow-based work management, and greater accountability at all levels.

Established and supported multiple cross-functional teams, including the Operational Core (ERP) domain with dedicated streams for Support, Feature Development and ERP Migration, as well as teams responsible for Warehouse Operations, Maintenance & Operations (M&O) including system engineering and security, Modern Workplace, Data Quality and integration initiatives. Worked closely with Agile Coaches to support team development, remove impediments, and continuously improve delivery effectiveness.

Acted as Interim Product Owner for the operation and enhancement of the existing ERP landscape while supporting the ERP migration as a Project Manager. Reorganized the project organization and had the already negotiated contract with the implementation partner realigned with a focus on approach and overall responsibility; Phase 1 (financial accounting) has been live since October 2025. Collaborated with the selected implementation partner to design and establish the project organization and target operating model for the ERP transformation, introducing agile delivery structures and ways of working. Facilitated the alignment between business, IT and the external vendor and played a key role in negotiating the contractual framework and delivery model to ensure a sustainable foundation for the transformation program.

Initiated the strategic modernization of the workplace environment through the adoption of Microsoft 365 cloud capabilities, establishing the foundation for enhanced collaboration, scalability and future digital services.

Launched AI initiatives to identify practical business use cases and promote the responsible adoption of Artificial Intelligence across the IT department. Encouraged self-management and empowered teams to take ownership of decisions, delivery and continuous improvement.

Verified expert

Rudolf E.

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Datacenter Engineer, Network & Security Administrator

Ratingen
Rudolf E.

Last position:

Datacenter Engineer, Network & Security Administrator at International Insurance Group

  • Operation and further development of the network and security infrastructure.

  • Monitoring, analysis and resolution of network and security incidents.

  • Cross-departmental collaboration with other teams on operations and further development, and reporting.

  • Firewall vulnerability analysis.

  • Firewall access requests.

  • Troubleshooting IP communication issues on network and firewall infrastructure.

  • Security-critical IT infrastructure, processing of personal data, compliance with legal requirements.

  • Products: Palo Alto Networks Firewalls, Cisco ACI, Checkpoint Firewalls, F5

  • Technologies: SDN, SDWAN, Cisco EPIC, Cisco ACI

Verified expert

Michael F.

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Freelancer, Platform Solution Architect

Roth
Michael F.

Last position:

Platform Architect (Project lead) at Würth IT

I designed and built a self-service AWS platform for Data Science teams with little or no infrastructure-as-code experience. A team writes about 10 lines of Python and gets a deployable stack with full SDLC release cycle that already follows the governance rules. Networking, encryption, IAM and tagging are decided by the platform, not by each team.

New teams or AWS accounts are onboarded with one pull request. Waste prevention and cost control is built into the defaults: Data scientists don't need infrastructure skills.

  • Construct library (AWS CDK, Python). Built a versioned catalog of about 20 hardened constructs for being used in data-science projects with ML context
  • Governance as code
  • Multi-account, multi-tenant
  • Golden-path scaffolding
  • CI/CD and supply chain. Built reusable GitHub Actions workflows
  • Release engineering
  • QA with e2e, contract testing and unit test coverage with each release candidate
Verified expert

Peter V.

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IT Consultant

Weiterstadt
Peter V.

Last position:

IT Administrator at SEAT Deutschland

  • Creating concepts and architecture for domain integration (SEAT into the VW structure)
  • Domain trusts and administration
  • Operation and administration of Windows 2022/ 2025 servers and domains
  • Domain restructuring
  • GPO and SG editing and migration
  • DNS restructuring and migration

Technologies: Windows 2022, Active Directory, ADFS, AD Azure Connect, DHCP, DNS, GPO, VMWare vSphere, Hyper-V, Powershell, Jira, MS Office 365,), SCCM, VSAN Fileservices, Approximately 800 servers, 400 users

Verified expert

Peter F.

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Subproject Manager and Solution Architect - Microsoft 365 Transformation

Walpertskirchen
Peter F.

Last position:

Subproject Manager and Solution Architect - Microsoft 365 Transformation at Automotive Industry

  • Integrated highly regulated countries such as China and South Korea into a company-wide M365 tenant.

  • Technical point of contact for integrating specific requirements for the board and German subsidiaries subject to BaFin compliance requirements.

  • Subproject management.

  • Coordinated requirements as part of the overall architecture.

  • Designed the use of DLP features from Microsoft Purview.

  • Designed special access restrictions using Entra Id Conditional Access.

  • Supported the design of provisioning Teams teams and SharePoint sites with enhanced compliance requirements.

  • Provided technical support for implementing information classification with Sensitivity Labels for SharePoint Online and Teams.

  • Provided technical support to the subproject for introducing CoPilot for M365.

  • Skills: M365, Purview, DLP, Entra Id, Sensitivity Labels, CoPilot, Teams, SharePoint Online.

Verified expert

Michael S.

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IT & Test Consultant

Mainz
Michael S.

Last position:

IT & Test Consultant at Testing Experts GmbH

AI Readiness - Part 3: Creating an e-book on the use of AI in software testing

  • Designed and created an e-book on the sensible and safe use of AI in software testing from the perspective of an experienced test expert.
  • Used generative AI (ChatGPT, Perplexity Pro) as a sparring partner for structuring, wording suggestions and creating variations, with all content finally reviewed and approved using my own expertise.
  • Developed practical insights into the opportunities and risks of AI in testing, with a special focus on collaboration between testers and AI instead of “tester vs. AI”.
  • Title: “11 starke Gründe: Dream-Team statt Rivalen - Tester und KI sind gemeinsam unschlagbar”
  • Subtitle: “Wie Mensch und Maschine im Softwaretest das perfekte Team bilden – und warum reines KI-Testing riskant ist.”
  • Planned use of the e-book as a basis for workshops, customer meetings or internal training.
  • Technology: Generative AI, ChatGPT, Perplexity Pro, Microsoft Word, Adobe Acrobat, many years of hands-on professional testing experience, common sense.
Verified expert

Timo H.

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Cloud-native by conviction

Riedstadt
Timo H.

Last position:

Software Developer at Smiths Detection

  • Extension of a Swing-based UI for recording Security Restricted Articles during baggage screening.
  • Introduction of a new workflow for recording Deboarding Events.
  • Extension of the reporting system for Security Restricted Articles and Deboarding Events.
  • Implementation using JBoss Wildfly, PostgreSQL, spring-boot 3.x, Java 8/21, Swing, JSF, JAX-RS/Resteasy, Docker, Maven, Kiro.
Verified expert

Klaus K.

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HCL Lotus Notes / Domino & VMware IT Specialist

Bargfeld-Stegen
Klaus K.

Last position:

HCL Notes Banking Support, Domino Administration / Migration / Operations at Atruvia / HCL International

Description of duties “Atruvia / HCL International” Role: HCL Notes Banking Support, Domino Administration / Migration / Operations Operations, administration and technical support of the HCL Notes/Domino environment in the Atruvia banking environment on behalf of HCL. As part of an international support team, the focus was on second- and third-level support as well as the processing, management and monitoring of SLA tickets in categories 1, 2 and 3. Duties included the technical analysis and resolution of incidents in the Notes/Domino environment, system administration, and the development and modification of Lotus Notes /Domino applications and LotusScript agents when a programming solution was required. Another focus was ticket dispatching: analysing and assessing incoming tickets, assigning them to the responsible departments and specialist teams, and subsequently coordinating and tracking processing within the agreed SLA periods. There was also direct communication and coordination with subject-matter experts, departments and end customers of the connected banks. In particular, when language or technical communication problems arose within the international support team, German-language customer communication was handled and mediation between customers and technical specialists was provided. Objective Ensuring stable and reliable operation of the HCL Notes/Domino landscape in the Atruvia banking environment and the timely processing of business-critical support cases in line with the agreed Service Level Agreements. Incidents were to be analysed as early as possible and either resolved directly through administrative measures or suitable LotusScript/Notes solutions, or forwarded specifically to the responsible specialist teams. As of: 25.09.2026 (Version 2.10 LITE) including project times Page: 3 of 32 SPO-SOFT EDV Beratung, Dipl.-Ing. Klaus Kano, Tel.: +494532-2767682, Mail: [email], [link] At the same time, qualified preliminary analysis and targeted ticket dispatching were intended to ensure that every ticket reached the technically and professionally responsible department immediately and that unnecessary transfers, processing times and associated costs were reduced. Result Operational Notes/Domino support for the banks served was reliably ensured throughout the entire project period. SLA-relevant tickets were systematically analysed, prioritised, assigned to the responsible departments and tracked through to resolution. Some incidents were resolved directly through administration, technical error analysis and the development of suitable LotusScript agents and modifications to Notes/Domino applications. By directing tickets specifically to the relevant expert and specialist teams, incorrect assignments and unnecessary processing loops were reduced and compliance with the agreed SLA times was supported. Direct communication with the banks and mediation between German-speaking end customers and the international support team also contributed to efficient problem resolution and high customer satisfaction.

Verified expert

Gonzalo S.

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Technical Delivery Lead

Berlin
Gonzalo S.

Last position:

Parental Leave at Home

  • Full-time parenting break after Klim, planned and now complete. Available for new projects immediately.
  • Kept my skills current with a hands-on course in API and AI integrations.
  • Built small tools with AI agents and Claude Code to practise automation and reporting.
  • Sharpened my stakeholder management with a toddler: daily negotiations, unclear requirements, zero escaped defects:D
Verified expert

Reinhold M.

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Business Analyst, Proxy PO, Epic Owner, Quality Assurance

Petershausen
Reinhold M.

Last position:

Business Requirements Engineer, Proxy Product Owner, Tester at AXA Konzern AG

Working Environment

  • Insurance / Claims Management (Property, Liability, Automotive)
  • REST-based ClaimAPI with Guidewire ClaimCenter

Scope

  • Further development of the internal REST-based ClaimAPI with Guidewire ClaimCenter as the backend and various portals/front-end offices as clients, and with the following objectives: + increased AI-supported claims processing outside of Guidewire ClaimCenter + and support for all lines (property, liability, automotive).
  • Further development of automated claims processing

Activities

  • Interfacing IT & Business
  • Design activities with documentation in Confluence, Jira: + Requirements engineering (functional and non-functional) + Design of REST endpoints and coordination with interface partners (esp. AI-colleagues) + Identification, design and evaluation of alternative solutions (moving away from a monolithic approach toward fine-grained endpoints, with code reuse across all lines if possible) + Creation / refinement of product backlog items in Jira, i.e. epics, user stories and tasks, incl. alignment with developers & POs during (pre-)refinement sessions + Using AXA Secure GPT when creating / refining user stories (description, acceptance criteria) and designing REST endpoints + Estimation and prioritization of user stories and tasks during Sprint Planning sessions + Coordination and support during the implementation of Product Backlog items + Driving decision making with preparation and presentation of decision-making documents
  • Quality assurance: + Test management, including test case creation using Xray in Jira + Test execution using Bruno as REST client and in Guidewire ClaimCenter + Submission of test artifacts for PO approval + Analysis of production bugs

Methods Big Room Planning (aka PI-Planning in SAFe), Scrum, BPMN, EPK, UML, ERM, DDD

Tools / Tech Stack Teams, Confluence, Jira with Xray, OpenAPI/Swagger, REST, JSON, XML, MS Office, Bruno, GitHub repository (reading), Guidewire ClaimCenter, AXA Secure GPT (AXA's in-house GenAI solution based on Azure OpenAI)

Verified expert

Robert D.

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Software Architect

Lübeck
Robert D.

Last position:

Java Software Architect at adesso insurance solutions GmbH

Verified expert

Shamaila M.

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Senior Software And Platform Architect

Heilbronn
Shamaila M.

Last position:

Founder/Kubernetes and Cloud Architect at Kubekanvas

  • Developed browser based platform for kubernetes no-code deployment and cluster management
  • Developed CLI in Typescript to deploy the resources in the cluster without leaving the browser UI.
  • Implemented DevSecOps pipelines: image scanning, SBOM, policy enforcement, supply-chain security and used Kyverno. Implemented IAM integration for the command line utility tool.
  • Designed role & permission models for Keycloak, oAuth/OIDC, social login flows.
  • Used LLM to convert user intent into the diagram.
  • Worked on integration with multiple Sovereign Cloud like stackIt, Hetzner, CIVO, UpCloud plus public clouds like AWS, GCP, Azure
  • The technology stack includes Java, SpringBoot, Kubernetes, OpenAI, Kubernetes multi-tenancy using vCluster, Karpenter, RBAC for CLI, Helm, React

Discover over 15,000 top freelancers

Statistics of experts using Java

Aggregated from the professional profiles of matched freelancers.

Experience

19 years

Java experts have 19 years of professional experience on average.

Position duration

3 years

Java experts stay in a single position for 3 years on average.

Positions per freelancer

13

Java experts have completed 13 positions on average over the course of their careers.

Top business areas

Information Technology, Product Development, Project Management

Java experts have gathered most of their hands-on project experience in Information Technology, Product Development, and Project Management.

Top industries

Information Technology, Banking and Finance, Automotive

Java experts are most in demand in Information Technology, Banking and Finance, and Automotive.

Certification focus areas

Information Technology, Project Management, Product Development

Java experts earn their certifications most often in Information Technology, Project Management, and Product Development.

Bachelor's degree or higher

91%

91% of Java experts hold at least a Bachelor's degree.

Master's degree or higher

56%

56% of Java experts hold at least a Master's degree.

Doctorate

7%

7% of Java experts have a doctorate (PhD).

Certifications per freelancer

3

Java experts hold 3 professional certifications on average.

Most common languages

German, English, French

Java experts most often speak German, English, and French.

Speak two or more languages

97%

97% of Java experts speak two or more languages.

Based on our profile pool as of 5 Nov 2026.

Daily rate distribution

0% 25% 50% 75% 100%
5% of Java experts charge less than €400 per day.
45% of Java experts charge between €400 and €800 per day.
44% of Java experts charge between €800 and €1200 per day.
5% of Java experts charge between €1200 and €1600 per day.
1% of Java experts charge €1600 or more per day.
<€400 €400-​800 €800-​1200 €1200-​1600 €1600+

The chart shows how the daily rates of experts in this technology 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 using Java

Rates are based on recent contracts and do not include FRATCH margin.

800
600
400
200
Rate comparison chart
Daily rate avg. 768 €

The average daily rate is the mean of all daily rates from recent contracts of comparable freelancers on our platform.

800
600
400
200
Rate comparison chart
Median rate 792 €

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 5 Nov 2026. Actual rates may vary depending on seniority level, experience, skill specialization, project complexity, and engagement length.

Java 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 (92%)
  • Banking and Finance (47%)
  • Automotive (41%)
  • Manufacturing (39%)
  • Professional Services (34%)
  • Retail (33%)
  • Healthcare (30%)
  • Telecommunication (29%)

Please note that freelancers can work across multiple industries, so percentages overlap.

About the technology

What Java is

Java is a general-purpose programming language and runtime for building reliable software across operating systems. Its static typing, mature tooling and extensive standard library support long-lived applications, from business platforms to distributed services. The Java Virtual Machine also runs languages such as Kotlin and Scala.

Where Java runs

Java is widely used for transaction-heavy backends, web applications, APIs, Android applications, data services and internal business systems. It fits industries that need stable processing, strong security controls and predictable maintenance, including finance, manufacturing, retail, logistics and public services.

  • Enterprise platforms and customer portals
  • REST and event-driven APIs
  • Payment, order and identity services
  • Data processing and integration systems

Ecosystem and tooling

The ecosystem includes Spring Boot, Jakarta EE, Hibernate, Maven and Gradle. Specialists also work with JUnit, Mockito, Kafka, Docker and Kubernetes, connecting Java services to relational databases, cloud infrastructure and observability tools. Build pipelines commonly include Git-based workflows, automated tests and static analysis.

When companies need expertise

Freelance expertise is useful when a team is modernising a monolith, splitting services, upgrading a Java version or taking ownership of a critical integration. It can also accelerate a new Spring Boot service, improve test coverage or resolve performance and reliability issues without slowing the internal team.

  • A legacy codebase is difficult to change safely
  • APIs need clearer contracts and stronger security
  • Cloud migration exposes deployment or scaling issues
  • Releases need dependable automation and monitoring

What strong professionals deliver

Strong Java professionals design clear boundaries, readable domain models and resilient failure handling. They understand concurrency, memory management, transactions and API security, not only framework configuration. Their work includes maintainable code, useful tests, technical documentation and deployment practices that other specialists can operate.

Collaboration and project fit

Java work often spans product, infrastructure, data and security teams, so communication matters as much as syntax knowledge. Remote collaboration works well when repositories, architecture decisions, environments and acceptance criteria are documented. On-site work can help with sensitive systems or complex stakeholder alignment, while English is commonly used across international teams.

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Frequently asked questions

Curious about Java? Here are the answers that come up again and again.

Java is commonly used for enterprise backends, REST APIs, payment systems, integration services and high-volume data processing. It also supports Android applications and many internal platforms that need long-term stability.

Java offers a broad enterprise ecosystem, mature tooling and portability through the JVM. C# may be a closer fit for Microsoft-focused environments, while Go is often chosen for smaller, highly concurrent services with simpler deployment needs.

A strong Java specialist often brings Spring Boot, SQL, REST, messaging and automated testing skills. Experience with Docker, Kubernetes, cloud services, CI/CD pipelines and observability is valuable for production systems.

The right Java freelancer depends on the system’s risk and scope, not a fixed duration of experience. A small API may need a focused specialist, while a regulated platform or complex migration calls for someone who has handled architecture, production incidents and release planning.

Java projects are often well suited to remote collaboration because code, tests, infrastructure and documentation can be shared digitally. Clear access rules, regular technical reviews and agreed communication hours are especially important when the system handles sensitive business data.

Spring Boot is a practical choice when a team needs production-ready services with convention-based configuration and a broad integration ecosystem. It works well for APIs and business services, but a simpler Java setup may be preferable for a small utility or narrowly scoped component.

Review how the Java specialist explains trade-offs, testing strategy, error handling and operational risks. Ask for examples of maintainable systems, inspect the clarity of proposed interfaces and verify that performance claims are supported by measurement rather than assumptions.

Java work can involve several framework and build choices, so specialists should be comfortable learning an existing codebase rather than imposing a preferred stack. Familiarity with Maven or Gradle, Spring, JUnit, version upgrades and team review practices helps them contribute quickly.

The average hourly rate of freelancers who have used Java in their recent projects is 96 €, which corresponds to a daily rate of about 768 € based on an 8-hour working day.

Of the freelancers who have used Java in their recent projects, 91% hold at least a Bachelor's degree, 56% hold at least a Master's degree, and 7% hold a doctorate.

On average, freelancers who have used Java in their recent projects have 19 years of professional experience, with a single engagement typically lasting around 3 years.

The most common languages among freelancers who have used Java in their recent projects are German (98%), English (97%), and French (21%).

The most common industries among freelancers who have used Java in their recent projects are Information Technology (92%), Banking and Finance (47%), and Automotive (41%).

The most common business areas among freelancers who have used Java in their recent projects are Information Technology (97%), Product Development (86%), and Project Management (59%).

Main locations of FRATCH Experts, who have recently used Java

Our freelancers and interim experts are at home all over Germany — available on-site in Berlin, Hamburg, Munich and every major business hub, or fully remote. Choose a city to discover matched specialists, local market insights and up-to-date availability.

In Austria our freelancers and interim experts support companies from Vienna to Graz — on-site where your project needs them, or fully remote. Choose a city to discover matched specialists, local market insights and up-to-date availability.

Across Switzerland our specialists are active in Zurich, Geneva, Basel and Bern — working on-site or fully remote. Choose a city to discover matched specialists, local market insights and up-to-date availability.

Zurich Geneva Basel Bern

Countries:

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