top of emerging technologies and regulatory changes What we’re looking for 5+ years in professional software development, with 2+ years in Rust Strong knowledge of telecom protocols (SIP, RTP, VoIP, 4G/5G, IMS, Diameter, SS7, etc.)Experience with distributed systems, real-time communications, or network services Solid grasp of concurrency, memory management, and performance tuning in More ❯
onsite to Annapolis Junction, MD. - 7+ years of experience supporting VoIP or telephony systems in a systems administrator or engineer role. - Experience with VoIP protocols and technologies, including SIP, RTP, SRTP, and Avaya platforms (e.g., Communication Manager, CMS, ACR, WFO, IX Messaging, System Manager). - Experience in Unix/Linux environments including patching, volume management, LDAP integration, and log analysis. More ❯
onsite to Annapolis Junction, MD. - 7+ years of experience supporting VoIP or telephony systems in a systems administrator or engineer role. - Experience with VoIP protocols and technologies, including SIP, RTP, SRTP, and Avaya platforms (e.g., Communication Manager, CMS, ACR, WFO, IX Messaging, System Manager). - Experience in Unix/Linux environments including patching, volume management, LDAP integration, and log analysis. More ❯
onsite to Annapolis Junction, MD. - 7+ years of experience supporting VoIP or telephony systems in a systems administrator or engineer role. - Experience with VoIP protocols and technologies, including SIP, RTP, SRTP, and Avaya platforms (e.g., Communication Manager, CMS, ACR, WFO, IX Messaging, System Manager). - Experience in Unix/Linux environments including patching, volume management, LDAP integration, and log analysis. More ❯
Birmingham, West Midlands, United Kingdom Hybrid / WFH Options
Hays
must have the following skills & experience: Extensive experience with enterprise VOIP and Unified Communications platforms (Cisco Call Manager, SIP, Cloud Voice). In-depth knowledge of SIP, ISDN, PSTN, RTP/SRTP, and voice gateway technologies. Strong understanding of QoS, DHCP, DNS, and network dependencies impacting voice quality. Proven track record of migrating from legacy voice systems to modern SIP More ❯
to track and diagnose issues in production A solid understanding of security principles and secure coding including OWASP Top 10 Nice to haves: o Experience in VOIP, (SIP and RTP advantageous) o Experience of TDD/BDD/DDD o Knowledge of PCI compliance and associated standards such as ISO 27001 o Knowledge of accessibility standards and how to apply More ❯
to track and diagnose issues in production A solid understanding of security principles and secure coding including OWASP Top 10 Nice to haves: o Experience in VOIP, (SIP and RTP advantageous) o Experience of TDD/BDD/DDD o Knowledge of PCI compliance and associated standards such as ISO 27001 o Knowledge of accessibility standards and how to apply More ❯
voice technologies and call center workflows (e.g., IVRs, ACD, call recording). Exposure to platforms like NiceCX One or similar CCaaS environments. Basic understanding of contact center protocols (SIP, RTP) and CRM integrations. Proficiency in analyzing logs, dashboards, or monitoring data to support root cause identification. Familiarity with QA tools (e.g., JIRA, JMeter, LoadRunner, or Cyara) and test documentation processes. More ❯
Manchester, North West, United Kingdom Hybrid / WFH Options
MECS Communications Ltd
on-call support (1 in 4 rotation). Essential Skills: * Experience with Cisco UC technologies (UCM, Unity, Expressway, Webex, CUBE, ISDN/Analogue Gateways). * Strong understanding of SIP, RTP, and basic network configurations. * Proven MSP or managed services experience. * Excellent communication and documentation skills. * Cisco CCNP (preferred) and ITIL knowledge. You will need: * Strong problem-solving and planning skills. More ❯
East London, London, United Kingdom Hybrid / WFH Options
Nemo Resourcing
Linux knowledge Good knowledge of containers and orchestration, especially Docker Relational database skills MySQL, MariaDB or PostgreSQL Any of the following would be good to have: - Wider VoIP skills: RTP, Asterisk, OpenSIPS, RTPEngine, WebRTC Programming skills in C/C++ or Lua Knowledge of networking: IPv4, IPv6, firewalls, routing Podman, Docker Composer/Swarm, Kubernetes Init systems: sys5 init, runit More ❯
expertise to support vulnerability mitigation efforts. Provide CI expertise in protecting emerging geospatial and IC technologies and the intelligence acquisition process. Provide CI support to Research and Technology Protection (RTP) initiatives to include writing approximately eight CI Threat Assessments (CI/TA) per month. Provide for the seamless integration of CI support to NGA's Supply Chain Risk Management (SCRM More ❯
expertise to support vulnerability mitigation efforts. Provide CI expertise in protecting emerging geospatial and IC technologies and the intelligence acquisition process. Provide CI support to Research and Technology Protection (RTP) initiatives to include writing approximately eight CI Threat Assessments (CI/TA) per month. Provide for the seamless integration of CI support to NGA's Supply Chain Risk Management (SCRM More ❯
expertise to support vulnerability mitigation efforts. Provide CI expertise in protecting emerging geospatial and IC technologies and the intelligence acquisition process. Provide CI support to Research and Technology Protection (RTP) initiatives to include writing approximately eight CI Threat Assessments (CI/TA) per month. Provide for the seamless integration of CI support to NGA's Supply Chain Risk Management (SCRM More ❯
their use for securing inter-tenant traffic on a multi-tenanted network. Awareness of Wi-Fi design best practices. Exposure to broadcast/media application layer protocols including AES67, RTP, SRT, and ST2202-7. Knowledge or experience of working with media/technology tools (hardware and software). If you can bring some of these skills and experience, along with More ❯
programmer or analyst/designer in a financial environment. Industry Knowledge : Experience with Treasury Services/Investment Banking processes and products. Experience with Payments within Banking (SEPA, SWIFT, ChAPS, RTP) Certifications : PMP, PgMP, or similar certifications. More ❯
programmer or analyst/designer in a financial environment. Industry Knowledge : Experience with Treasury Services/Investment Banking processes and products. Experience with Payments within Banking (SEPA, SWIFT, ChAPS, RTP) Certifications : PMP, PgMP, or similar certifications. More ❯
programmer or analyst/designer in a financial environment. Industry Knowledge : Experience with Treasury Services/Investment Banking processes and products. Experience with Payments within Banking (SEPA, SWIFT, ChAPS, RTP) Certifications : PMP, PgMP, or similar certifications. More ❯
warrington, cheshire, north west england, united kingdom
Ascendion
programmer or analyst/designer in a financial environment. Industry Knowledge : Experience with Treasury Services/Investment Banking processes and products. Experience with Payments within Banking (SEPA, SWIFT, ChAPS, RTP) Certifications : PMP, PgMP, or similar certifications. More ❯
Chester, Cheshire West and Chester, Cheshire, United Kingdom
Ascendion
programmer or analyst/designer in a financial setting. Hands-on experience with Treasury Services or Investment Banking products and processes. Strong knowledge of Banking Payments (SEPA, SWIFT, CHAPS, RTP). Certifications: PMP, PgMP, or equivalent certifications required About Us: Ascendion is a global, leading provider of AI-first software engineering services, delivering transformative solutions across North America, APAC, and More ❯
strategies, reporting, and integrations with CRM/ERP platforms. Knowledge of Session Border Controllers (SBCs), SIP trunking, and PSTN integrations. Networking & Infrastructure Solid foundation in VoIP protocols (SIP, H.323, RTP, SRTP, QoS, SBC security). Understanding of LAN/WAN networking fundamentals, firewalls, and VPN technologies as they relate to collaboration. Experience with virtualization platforms (VMware ESXi, UCS, Hyperflex). More ❯
a self-motivated, and experienced VoIP and C++ Development Engineer.This is a hands-on execution role, working on the core telephony stack involving signalling, media processing, SIP call routing, RTP relaying, WebRTC and click apply for full job details More ❯
Ashburn, Virginia, United States Hybrid / WFH Options
crox consulting
Position:- Salesforce DeveloperLocation:- RTP, NC Hybrid (3 days from office)Duration:- 6-12 Months Contract Primary Skill Set : Sales cloud, PSA module expert. Job Description :- Salesforce Admin, Developer and Salescloud certified (link removed)ndidate should have sound knowledge on Salesforce platform, good customization(coding) skills and configuration skills with industry best practicesCandidate should have hands-on exposure on APIs and More ❯
Basingstoke, Hampshire, South East, United Kingdom
Southern Communications Ltd
a self-motivated, and experienced VoIP and C++ Development Engineer.This is a hands-on execution role, working on the core telephony stack involving signalling, media processing, SIP call routing, RTP relaying, WebRTC and failover mechanisms. The opportunity is ideal for engineers with a passion for building, debugging, and optimizing real-time communication systems, with extensive knowledge and background … hours. Produce and maintain detailed project, policy, and procedural documentation. Skills & Experience: 5+ years of experience building and operating VoIP systems using communications protocols such as UDP, SIP and RTP Strong hands-on with Softswitch, OpenSIPs, RTPEngine. Solid expertise with SIP signalling, RTP, and media relay techniques. Hands-on experience with Session Border Controller, Media Servers and WebRTC. Experience in More ❯
in software design and development 10 years minimum experience with IP network protocols and development 10 years minimum experience system integration field testing 10 years minimum experience with SIP, RTP, ED137 and VoIP technologies 5 years minimum experience with network emulation and modeling Experience working with EMANE software development Experience with software defined networking Experience with network test bed systems … Experience with network emulation and modeling Preferred Skills: SIP, RTP, ED137 experiences are preferred Experience with virtualizations is preferred Bachelors degree is required. More ❯