SS7 Experts in Germany
to secure and modernize telecom signalling with fast, precise AI matchingHire experts who design, troubleshoot and secure SS7 signalling for mobile networks, roaming services and carrier-grade messaging. Work with specialists in MAP, SCCP, TCAP and SIGTRAN, matched quickly to your needs from vetted, available freelance professionals.
Meet FRATCH Experts in Germany, who have recently used SS7
Diego E.
Last position:
RPG Software Developer from RPG III to Free Format
- Development of software and system support for RPG development.
- Development, optimization and maintenance of programs in RPG (RPG II to ILE Free Format).
- Performing integration tasks, data management as well as applying and managing system updates.
- User support and training to ensure smooth system operation.
Nikhil G.
Last position:
Co-founder / Solution Architect at Lima Care GmbH
- Developed a comprehensive business concept for a medical fall detection device based on a patented process registered in Germany
- Identified and collected use cases for medical device deployment in residential buildings and healthcare provider facilities
- Expanded the product scope to industry standards such as HL7/FHIR and designed a product based on modern communication protocols for IIoT
- Supported offshoring activities, defined SLA and scope-of-work documents for development teams after selecting various vendors
- Identified and selected hardware components (Terrabee, E-Con Systems) for LIDAR/TDOA functions
- Defined integrated AI features and LLM models for patient fall detection as well as AI-based audio triggers
- Oversaw the implementation of algorithms for object detection, fall detection, and false alarm identification
Michal B.
Last position:
Senior Golang Engineer at STACKIT / Schwarz Gruppe
- Responsible for software engineering and DevOps in the Data & AI Platform - Intake and PubSub projects at STACKIT, the cloud provider of the Schwarz Group.
- Technologies: Golang, Kubernetes, Kubernetes operators, OpenAPI v3, REST API, Azure DevOps, CI/CD, k6, Kafka, Strimzi, Apache Iceberg, RBAC, IAM, Terraform, Helm, Infrastructure automation, Load balancing, Traefik, ArgoCD, kuttl, Kyverno chainsaw, Kustomize, Velero, Prometheus, Grafana, Checkly / Playwright (TypeScript), NATS/Jetstream, WebSockets, gRPC, SSE
Erik S.
Last position:
Project Manager, Subproject Manager, PMO at Martinswerk GmbH / Huber Advanced Materials
- Filled a short-term staffing gap for this project.
- Continued multiple projects and cleared documentation backlogs.
- Familiarized the support team with agile practices (self-organization, task prioritization).
- Took over project control and stakeholder management.
- Acted as the communication link between technical staff, users, and project owners.
- Served as Agile Coach for the team.
Amit V.
Last position:
Security Consultant (Ethical Hacker) at Security Research Labs (SRLabs)
- Led telecom security testing team & SOC deployments across Tier-1 carriers; reduced critical vulnerabilities by 30%.
- Conducted 5G/O-RAN fuzzing, penetration testing, and vulnerability research (basebands, RAN, core).
- Designed testbeds for protocol fuzzing (AFL++, LibAFL) on 5G stacks.
- delivered client workshops on secure telecom with AI assisted workflows.
- Researched AI-driven SOC and penetration testing (LLMs for log triage, anomaly detection, adversarial monitoring).
Konstantin M.
Last position:
Architect, Software Developer at IPG Photonics
- Defined initial system and software architecture
- Implemented application modules and hardware control layers
- Built test and mock environments to support validation
- Developed hardware drivers and low-level communication routines
- Authored technical documentation for internal and external stakeholders
- Tools: C/C++, QML, Linux, Windows, Raspberry PI, MQTT, CAN, Serial
Discover over 15,000 top freelancers
Statistics of experts using SS7
Aggregated from the professional profiles of matched freelancers.
Experience
22 years
Position duration
1.8 years
Positions per freelancer
17
Top business areas
Information Technology, Product Development, Project Management
Top industries
Information Technology, Telecommunication, Banking and Finance
Certification focus areas
Information Technology, Product Development, Project Management
Bachelor's degree or higher
100%
Master's degree or higher
60%
Certifications per freelancer
5
Most common languages
German, English, Spanish
Speak two or more languages
83%
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 SS7
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.
SS7 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%)
- Telecommunication (100%)
- Banking and Finance (67%)
- Manufacturing (50%)
- Retail (50%)
- Advertising (33%)
- Food and Beverage (33%)
- Healthcare (33%)
Please note that freelancers can work across multiple industries, so percentages overlap.
About the technology
Signalling foundations
SS7, or Signalling System No. 7, is a signalling protocol suite used by telecommunications networks to exchange control information separately from voice and data traffic. It supports call setup, routing, subscriber services, roaming, billing signals and network status across carrier environments.
Network building blocks
SS7 work spans several protocol layers and transport choices. Specialists commonly work with:
- SCCP for global title translation and advanced addressing
- TCAP for transaction-based service communication
- MAP for mobility, authentication and subscriber data
- ISUP for call setup and release signalling
- SIGTRAN for carrying signalling over IP networks
Where it runs
Companies use SS7 in mobile core networks, fixed-line switching, international gateways, SMS centres and roaming hubs. It also appears in lawful interception support, number portability, prepaid services and inter-carrier messaging. In Germany, telecom operators and vendors may need expertise across legacy circuit-switched infrastructure and newer IP-based interconnects.
When expertise matters
Freelance specialists are useful when a team must integrate a signalling gateway, investigate failed roaming flows or migrate transport without disrupting services. They can also support audits, incident response and interoperability testing across carriers and network equipment.
- Trace MAP, TCAP and ISUP transactions
- Configure and validate SIGTRAN links
- Diagnose routing, translation and timeout failures
- Review exposure to signalling abuse
Security and operations
SS7 requires careful control of signalling relationships, routing rules and trust boundaries. Strong professionals understand firewalling, screening, monitoring, global title management and fraud patterns such as location tracking or unauthorized service requests. They connect protocol traces with subscriber, roaming and operational impact.
Choosing a specialist
Look for practical work with signalling transfer points, service control systems, mobile core components and packet captures. A capable professional explains protocol behaviour clearly, separates network faults from application errors and documents safe changes. For remote work, shared traces, controlled lab access and clear escalation paths matter; on-site collaboration can help with carrier equipment and maintenance windows in Germany.
Frequently asked questions
Need clarity? These are the questions we hear most often about SS7.
SS7 carries control messages between telecom network elements rather than user voice or data. It supports call routing, SMS delivery, roaming, subscriber authentication, number portability and other network services.
Signalling System No. 7 is a broad signalling suite used heavily in traditional carrier networks, while SIP commonly controls IP voice and multimedia sessions. SIGTRAN transports SS7 signalling over IP, so it complements the protocol suite rather than replacing its service logic.
A strong SS7 specialist usually understands mobile core systems, SIM and subscriber data flows, signalling transfer points, packet capture analysis and telecom security. Experience with MAP, SCCP, TCAP, ISUP, SIGTRAN and IP networking is especially relevant.
The right level depends on the scope: a trace review may need focused protocol knowledge, while a carrier migration requires deep operational experience. For high-risk changes, choose a professional who has handled live routing, interoperability testing, incident response and rollback planning.
Common Channel Signaling System 7 projects can often be handled remotely when secure lab access, traces and monitoring data are available. On-site work may still be necessary for carrier interconnects, restricted equipment or maintenance activities, and German-language communication can matter in local operations teams.
SS7 relies on signalling relationships that were historically built on trusted network boundaries. Weak screening or routing controls can enable location exposure, message interception or unauthorized service requests, so specialists should assess trust links, filtering, monitoring and fraud controls.
Ask how the SS7 professional would isolate a failed transaction, validate a routing change and protect service continuity. Good answers refer to protocol traces, message sequences, controlled testing, clear documentation and measurable rollback criteria rather than vague troubleshooting claims.
SS7 expertise is valuable when a company connects legacy switching with IP-based core systems, introduces SIGTRAN, changes roaming paths or retires signalling equipment. A specialist can map dependencies, test interworking and prevent hidden effects on SMS, authentication, calls or billing.
The average hourly rate of freelancers in Germany who have used SS7 in their recent projects is 105 €, which corresponds to a daily rate of about 841 € based on an 8-hour working day.
Of the freelancers in Germany who have used SS7 in their recent projects, 100% hold at least a Bachelor's degree and 60% hold at least a Master's degree.
On average, freelancers in Germany who have used SS7 in their recent projects have 22 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 SS7 in their recent projects are German (100%), English (83%), and Spanish (33%).
The most common industries among freelancers in Germany who have used SS7 in their recent projects are Information Technology (100%), Telecommunication (100%), and Banking and Finance (67%).
The most common business areas among freelancers in Germany who have used SS7 in their recent projects are Information Technology (100%), Product Development (67%), and Project Management (67%).
Main locations of FRATCH Experts, who have recently used SS7
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
