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HDLC Experts in Germany

for reliable data links, matched in minutes with vetted freelance professionals

Hire experts who design, configure and troubleshoot High-Level Data Link Control for synchronous serial links, telecom equipment and industrial systems. FRATCH uses precise AI matching to connect you with vetted, available freelancers quickly.

Meet FRATCH Experts in Germany, who have recently used HDLC

Verified expert

Paul P.

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Independent Consultant – Industry/ Embedded/ IoT

Krailling
Paul P.

Last position:

Independent Consultant – Industry/ Embedded/ IoT at Self-employed

Consulting and support in the areas of sales/business/technology/development/marketing:

  • Sales, Key Account Management
  • Business Development, business/corporate development
  • Partner management
  • Program/project management
  • Product management & marketing
  • Technical marketing, content marketing
  • New business, innovation and technologies

Until July 2021 active as advisor and consultant for Mixed Mode in the areas of Key Account Management, Project Management and Business Development.

From Q3/2021 successful delivery of various customer projects in the area of Business Development, corporate development, consulting, coaching, technical content management, sales and marketing:

  • EMS service provider and PCB test house, inspection systems: revision of company portfolio and presentation. Integration of specialized distribution for optical inspection systems from Japan: content management, marketing, communication, web, sales automation, lead generation
  • Full service marketing agency – technology marketing for industry: expansion of the existing B2B and B2C marketing portfolio with industrial and technology topics: content management, presentation and focus on "technical marketing", web, target market and customer analysis, lead automation, consulting
  • Software product manufacturer & software development in the field of security for Embedded & IoT: company alignment and portfolio definition for an IoT and Embedded Security company with a SaaS solution for IoT device management: building a partner network to offer complete Embedded/IoT security solutions, technical content, company alignment and portfolio definition, strategy & planning, target market and customer analysis, product marketing/USPs for the security device management tool "IoT-Suite", standards and regulations for cyber resilience (e.g. CRA, NIS2, RED), web content, SEO, management of marketing and sales agencies, CRM, sales, presentations, trade fairs, congresses, building company webinars & events
  • Software engineering service provider/system house for IoT, Embedded, web, mobile and desktop applications: business development, content creation, customer acquisition and sales
  • Manufacturer of memory products with security features as an add-on: memory products in standard form factors (SD, CF, SSD...) are extended with security modules such as HSM, TPM or secure elements and thus offer users secure data storage, transfer and access. Also interesting as an upgrade or retrofit solution to meet the coming new regulations and requirements regarding cybersecurity such as CRA, RED and NIS2. Business & New Business Development for the area "Embedded IoT Solutions & Security", sales & marketing. Expansion of the pure semiconductor business to include security solutions and services. Interface between management, marketing, sales and product management. Building business partners, technology partners, system integrators and resellers from the Embedded, IoT, OT and IT environment. Creating reference designs/demos/lighthouse cases and proof of concepts for cross- and reference selling. Co-marketing with security partners. Technical content creation for web, sales and marketing, webinars, social media etc. Networking, participation in trade fairs, congresses and events. Lead generation, qualification, follow-up and conversion to customer. Product definition, USPs, features. Analysis of competitors, market positioning, target markets - strategy, concept and measures - go to market.
  • Marketing agency group with sales and management consulting: consulting for companies on restructuring, market analysis and market entry, go-to-market concepts, customer acquisition and expansion, new customer generation, lead generation and management, concepts and execution of campaigns (web, mail, social media, phone outreach in person or with AI voice assistant, webinars...). Processing and managing customer product data for PIM product information and DAM data asset management systems. Focus on customers in the industrial and technology environment with products and services that need explanation.
Verified expert

Mustafa K.

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Senior Network Design and Engineer

Frankfurt
Mustafa K.

Last position:

Senior Network Design and Engineer at Helaba

  • Designed and specified the technical network integration of a new business-critical application system (MUREX) in the capital markets area in a complex interface and outsourcing environment.

  • Created component specifications, a catalog of measures and an implementation plan.

  • Ensured proper integration of the developed results in line with the bank’s framework: IT compliance, IT security, change and release management.

  • Selected and integrated a new service provider for the bank; moved critical bank applications to the provider.

  • Designed, implemented and supported the new Cisco network and Fortinet security setup at the service provider data center.

  • Acted as technical interface between the bank, service providers and consulting partners.

  • Supported and further developed the network and security infrastructure (clients, servers, networks); performed error analysis and implemented solutions within agreed service levels.

  • Analyzed and diagnosed all security and network failures, glitches and malfunctions.

  • Initiated continuous improvements to ensure efficient resource use and acceptable response times for users.

  • Provided network support in a financial services organization and prepared operational changes on production banking network infrastructure for both large and small projects within strict change management discipline.

  • Designed, defined, tested, governed and improved engineering standards.

  • Performed the role of network architect for medium to large projects involving team resources.

Verified expert

Luca P.

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ERP Program Manager

Hofheim in Unterfranken
Luca P.

Last position:

ERP Program Manager at Fiserv

  • The customer is undergoing a comprehensive transformation. All SAP ECC landscapes worldwide are being migrated to SAP S/4HANA, with the goal of introducing a standard template worldwide.

  • The program also includes the “RISE with SAP” migration and modernization program, which may involve migrating the landscapes of selected country installations to the SAP Private Cloud.

  • On the stakeholder side, the program reporting line extends to the company’s executive board and that of the implementation partner.

  • Fiserv Germany’s ERP landscape currently includes several non-standard SAP tools and applications that extend the functionality of the ECC environment and can often be integrated into downstream systems. As part of the transition to SAP S/4HANA, it is essential to assess the core functionality, integration points and future viability of these applications in order to determine their alignment with the target architecture.

  • The focus of the work is on providing expert advice and assessment to define the scope, strategy and roadmap for transitioning Fiserv Germany’s SAP ECC system to SAP S/4HANA.

  • The recommended best practices from SAP are followed and a structured approach is used to ensure a smooth transition with minimal disruption while maximizing business value.

  • This assessment forms the basis for a successful SAP S/4HANA transformation and ensures alignment with industry best practices, regulatory compliance and future scalability.

  • Migration Strategy Definition – assessment of available transition approaches based on business objectives, technical feasibility and SAP Best Practices.

  • Technical Readiness Assessment – conducting a system analysis to assess compatibility, custom code impact, data volume management, integration points and infrastructure readiness for SAP S/4HANA.

  • Business Process Impact Analysis – reviewing the latest business process documentation to define the scope and effort required to implement the necessary functions in SAP S/4HANA and to identify opportunities for process optimization.

  • Roadmap for Non-SAP Systems and Applications – assessment of third-party and legacy applications regarding their integration with SAP S/4HANA and recommendation of consolidation, migration or replacement strategies.

  • Deployment & Implementation Planning – defining a phased approach for implementation, including project schedules, risk mitigation strategies and key milestones aligned with business priorities.

  • This transformation takes place in phases: the Discovery phase leads to the Explore phase, which is followed by the Design phase and finally implementation.

  • Program management

  • Change management

  • Requirements management

  • Transition management

  • Stakeholder management

  • Risk management

  • Comprehensive coordination

Verified expert

Ould Aly I.

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Functional Safety Assessor

München
Ould Aly I.

Last position:

Functional Safety Assessor at VW

  • Pre-assessments and review of functional safety status for ADAS ECUs and body controller components
  • Conduct functional safety audits
  • Review the functional safety status of the E3 1.2 in a pre-assessment
  • Document interviews
  • Document findings and generate internal reports

Methods:

  • ISO26262
  • Automotive SPICE Level 2, 3
  • Agile methods, SAFe

Tools:

  • DOORS
  • Enterprise Architect
  • JIRA & Confluence
  • IQ-FMEA
  • Isograph
Verified expert

Michael D.

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Consultant Software Architect

Fürth
Michael D.

Last position:

Consultant Software Architect at Railway Systems Company

  • Model based UML software design for safety critical level SIL-4 interlocking rail traffic system, according to CENELEC 50128 and IEC 62279 standards.
  • Skills: CENELEC 50128, IEC 62279, UML Rhapsody code generation, IBM Engineering Workflow Management (EWM), DNG RM requirements tool, Design Patterns, software functional safety, Risk Control Measures, SCRUM.
Verified expert

Uwe S.

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Embedded Software Developer

Schipkau
Uwe S.

Last position:

Embedded Software Developer at Self-employed

Discover over 15,000 top freelancers

Statistics of experts using HDLC

Aggregated from the professional profiles of matched freelancers.

Experience

36 years

HDLC experts in Germany have 36 years of professional experience on average.

Position duration

4.4 years

HDLC experts in Germany stay in a single position for 4.4 years on average.

Positions per freelancer

19

HDLC experts in Germany have completed 19 positions on average over the course of their careers.

Top business areas

Information Technology, Product Development, Project Management

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

Top industries

Information Technology, Manufacturing, Telecommunication

HDLC experts in Germany are most in demand in Information Technology, Manufacturing, and Telecommunication.

Certification focus areas

Information Technology, Product Development, Project Management

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

Bachelor's degree or higher

100%

100% of HDLC experts in Germany hold at least a Bachelor's degree.

Master's degree or higher

67%

67% of HDLC experts in Germany hold at least a Master's degree.

Certifications per freelancer

4

HDLC experts in Germany hold 4 professional certifications on average.

Most common languages

German, English, French

HDLC experts in Germany most often speak German, English, and French.

Speak two or more languages

100%

100% of HDLC experts in Germany speak two or more languages.

Based on our profile pool as of 19 Sep 2026.

Daily rate distribution

0 1 2 3 4
One of the HDLC experts in Germany charges less than €720 per day.
One of the HDLC experts in Germany charges between €720 and €800 per day.
One of the HDLC experts in Germany charges between €880 and €960 per day.
2 of the HDLC experts in Germany charge between €960 and €1040 per day.
One of the HDLC experts in Germany charges €1120 or more per day.
<€720 €720-​800 €880-​960 €960-​1040 €1120+

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 HDLC

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

1000
750
500
250
Rate comparison chart
Daily rate avg. 894 €

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

1000
750
500
250
Rate comparison chart
Median rate 920 €

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.

HDLC 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 (71%)
  • Telecommunication (71%)
  • Aerospace and Defense (43%)
  • Automotive (43%)
  • Energy (43%)
  • Banking and Finance (43%)
  • Advertising (29%)

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

About the technology

What HDLC does

High-Level Data Link Control, usually called HDLC, is a bit-oriented data-link protocol for reliable communication across synchronous serial connections. It organizes data into frames, manages addressing and control information, and uses error detection to protect transmission. HDLC sits between physical connectivity and higher-level network protocols, making it useful where predictable point-to-point communication matters.

Where it runs

HDLC appears in telecom infrastructure, industrial control networks, transportation systems, utility equipment and legacy wide-area links. It can connect routers, multiplexers, embedded controllers and specialized communication devices over leased lines or other serial media. In Germany, companies may encounter it in established operational systems that must keep running while interfaces are modernized.

  • Point-to-point serial links
  • Router and multiplexing equipment
  • Industrial and utility communication
  • Embedded control systems

Ecosystem and variants

HDLC is defined by an ISO standard and has influenced related protocols such as LAPB and LAPD. Cisco HDLC is a vendor-specific framing variant used on some serial router interfaces, while PPP is often considered when interoperability, authentication or multilink support is required. Strong specialists understand these differences before selecting a frame format or migration path.

Typical project work

Freelance professionals may inspect frame captures, map address and control fields, configure serial interfaces, and diagnose damaged or rejected frames. They can integrate HDLC links with routing, monitoring and synchronization systems, document interfaces, and plan a controlled transition to Ethernet, PPP or another suitable protocol. Deliverables often include configuration records, test procedures and fault reports.

  • Link commissioning and validation
  • Protocol and packet analysis
  • Legacy network modernization
  • Fault isolation and recovery plans

When expertise matters

Companies bring in HDLC specialists when a serial link is unstable, documentation is incomplete, or a legacy device must connect to newer infrastructure. External expertise is also useful before replacing field equipment, during a telecom migration, or when a small internal team lacks protocol-analysis skills. Remote work suits documentation, captures and configuration review; on-site access may be needed for cabling, instruments or restricted operational networks.

What strong professionals know

The best professionals combine frame-level protocol knowledge with practical networking and hardware awareness. They can read traces, distinguish physical faults from framing errors, and explain trade-offs between preserving HDLC and moving to PPP or Ethernet. Look for clear test evidence, careful change control, experience with the relevant vendor equipment, and communication that works across German and international project teams.

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Frequently asked questions

Questions about HDLC? Start with the answers below.

HDLC is used for reliable, synchronous communication over point-to-point serial links. Companies use it in telecom equipment, routers, industrial controllers and other systems where structured framing and error detection are important.

HDLC provides efficient framing for serial links, but PPP offers broader interoperability and features such as authentication, network-layer negotiation and multilink options. The right choice depends on the equipment, required controls and whether a vendor-specific HDLC variant is involved.

Cisco HDLC is a proprietary framing variant based on the general HDLC approach. It is suitable when compatible Cisco interfaces are used, but it may not interoperate directly with equipment expecting standard HDLC or PPP framing.

A strong HDLC specialist should also understand serial interfaces, routing, WAN technologies, clocking, cabling and protocol analysis. Experience with PPP, LAPB, network monitoring and vendor router configuration is valuable when links connect mixed equipment.

HDLC work does not require a fixed amount of experience for every assignment. A configuration review may need focused protocol knowledge, while a migration or fault investigation benefits from hands-on work with the exact devices, serial media and operational constraints involved.

HDLC projects can often be handled remotely when specialists receive configurations, logs and frame captures through a secure connection. On-site collaboration in Germany may still be necessary for physical testing, restricted networks, cabling checks or access to legacy equipment.

Ask how the HDLC professional separates physical-layer faults, clocking problems and framing errors. Request examples of test plans, trace analysis and change documentation, and check whether they can explain the consequences of keeping HDLC versus adopting PPP or Ethernet.

Before an HDLC assignment, clarify the framing variant, interface type, clock source, connected devices and permitted maintenance windows. Freelancers should also confirm access to diagnostics, existing documentation, rollback procedures and the language expectations of the German project team.

The average hourly rate of freelancers in Germany who have used HDLC in their recent projects is 112 €, which corresponds to a daily rate of about 894 € based on an 8-hour working day.

Of the freelancers in Germany who have used HDLC in their recent projects, 100% hold at least a Bachelor's degree and 67% hold at least a Master's degree.

On average, freelancers in Germany who have used HDLC in their recent projects have 36 years of professional experience, with a single engagement typically lasting around 4.4 years.

The most common languages among freelancers in Germany who have used HDLC in their recent projects are German (100%), English (86%), and French (57%).

The most common industries among freelancers in Germany who have used HDLC in their recent projects are Information Technology (100%), Manufacturing (71%), and Telecommunication (71%).

The most common business areas among freelancers in Germany who have used HDLC in their recent projects are Information Technology (100%), Product Development (86%), and Project Management (86%).

Main locations of FRATCH Experts, who have recently used HDLC

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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