{"id":68811,"url":"https://alion.io/job/talentmanagementsolution-voip-and-ai-communications-developer","title":"VoIP and AI Communications Developer","company":{"id":3420,"name":"Talent Management Solutions","domain":"talentmanagementsolution.com","url":"https://alion.io/company/talentmanagementsolution","size_band":"1001-5000","is_staffing_agency":true,"employer_type":"agency","is_intermediary":false,"listed_via":null,"ats_vendor":"Workday","truth_index":{"grade":"B","score":80,"open_postings":10,"ghost_share":0,"stale_share":0.8,"repost_share":0,"time_to_fill_p50_days":48,"computed_at":"2026-10-28T05:59:10Z"}},"role":"AI/ML","role_family":"AI/ML","seniority":null,"employment_type":"full_time","work_mode":"on_site","remote_scope":null,"remote_scope_basis":null,"remote_working_hours":null,"hiring_geo_confidence":"structured","locations":["Lahore, Pakistan","Karachi, Pakistan","Islamabad, Pakistan"],"countries":["PK"],"hiring_countries":[],"hiring_countries_total":0,"salary":null,"salary_estimate":null,"experience_years_min":null,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"AI Agents","optional":false},{"name":"CI/CD","optional":false},{"name":"DNS","optional":false},{"name":"Function Calling","optional":false},{"name":"Git","optional":false},{"name":"Linux","optional":false},{"name":"MariaDB","optional":false},{"name":"MySQL","optional":false},{"name":"PostgreSQL","optional":false},{"name":"Python","optional":false},{"name":"React.js","optional":false},{"name":"Rest API","optional":false},{"name":"Speech Recognition","optional":false},{"name":"TCP/IP","optional":false},{"name":"Text-to-Speech","optional":false},{"name":"Twilio","optional":false},{"name":"Voice Agents","optional":false},{"name":"WebSockets","optional":false},{"name":"Wireshark","optional":false},{"name":"AWS","optional":true},{"name":"Azure","optional":true},{"name":"Docker","optional":true},{"name":"Grafana","optional":true},{"name":"JavaScript","optional":true},{"name":"Kubernetes","optional":true},{"name":"LLM Guardrails","optional":true},{"name":"OpenSearch","optional":true},{"name":"Prometheus","optional":true},{"name":"TypeScript","optional":true},{"name":"WebRTC","optional":true}],"status":"live","first_seen_at":"2026-08-21T00:00:00Z","employer_posted_date":"2026-08-21","last_verified_at":"2026-10-28T23:42:19Z","board_verified":true,"closed_at":null,"days_open":69,"trust":{"level":"ok","repost_count":null,"flags":[],"days_open":69},"description":"About Contour\nContour Software has grown from a dozen people to over 2,000 staff across 3 cities, in less than 14 years.\nAs a subsidiary of Constellation Software Inc., we are proud to be part of a global enterprise software conglomerate that has grown to become one of the top 10 software companies in the world, with employees and customers in 100+ countries. With a broad-based and ever-growing portfolio of market-leading, vertical-market enterprise solutions covering more than 100 industry domains in predominantly mature markets, CSI's recipe creates the perfect environment for professionals to build fulfilling, long-term careers.\nWhat started as an R&D & Accounting back-office, has progressed into a full-service Global Centre serving all functions and departments, at the divisional as well as operating group/corporate level. Today Contour employees, located in Karachi, Lahore & Islamabad, are serving CSI divisions located in time zones spanning the globe, from Sydney to Vancouver. With the global growth of Constellation as the wind in our sails, we are only just getting started!\nPosition Overview\nDesign, build, integrate, and support carrier-grade VoIP platforms, AI voice agents, and virtual receptionist solutions.\n\nWork hands-on with Asterisk, FreeSWITCH, Kamailio, OpenSIPS, NetSapiens, Bandwidth, and Twilio.\n\nStrong Python development skills are required; React experience is an asset.\n\nKey Responsibilities\nDesign, develop, deploy, and maintainscalable VoIP applications and services.\n\nBuild backend services, REST APIs, integrations, and automation tools using Python.\n\nDevelop AI voice agents and virtual receptionist solutions that answer calls, route callers, schedule appointments, respond to questions, and handle common customer requests.\n\nIntegrate speech-to-text, text-to-speech, natural-language processing, and large language models with real-time VoIP systems.\n\nConnect AI agents with SIP trunks, PBX platforms, CRM systems, calendars, contact centers, and business applications, including reliable escalation and transfer to human representatives.\n\nConfigure Asterisk and FreeSWITCHdial plans, IVRs, queues, voicemail, conferencing, recording, and complex call flows.\n\nDevelop and maintain Kamailioand OpenSIPSconfigurations for SIP proxying, registration, authentication, routing, load balancing, failover, and security.\n\nAdminister, customize, and integrate NetSapiensdomains, users, devices, call-routing rules, provisioning workflows, and APIs.\n\nIntegrate and manage Bandwidth and Twilio services for SIP trunking, programmable voice, messaging, telephone numbers, call routing, and emergency calling.\n\nDevelop applications using Bandwidth and Twilio APIs, SDKs, webhooks, and programmable communications services.\n\nIntegrate SIP carriers, session border controllers, gateways, PBX platforms, and third-party communications services.\n\nBuild provisioning, billing, reporting, monitoring, messaging, and telephone-number management integrations.\n\nBuild or enhance web-based administration, monitoring, and reporting interfaces; React experience is an asset.\n\nTroubleshoot signaling, audio, registration, NAT, codec, latency, jitter, packet loss, webhook, and carrier-interoperability issues.\n\nAnalyze SIP and RTP traffic using sngrep, Wireshark, Homer, logs, metrics, and packet captures.\n\nImprove availability, voice quality, scalability, security, and disaster-recoverycapabilities.\n\nProtect systems against toll fraud, SIP scanning, denial-of-service attacks, prompt injection, unauthorized access, and improper handling of customer data.\n\nCreate technical documentation, deployment procedures, diagrams, and operational runbooks; participatein testing, releases, incident response, and on-call support.\n\nRequired Qualifications\nProfessional experience developing or supporting productionVoIP platforms.\n\nHands-on knowledge of Asterisk, FreeSWITCH, Kamailio, OpenSIPS, and NetSapiens.\n\nExperience integrating Bandwidth and Twilio APIs, SIP trunks, webhooks, telephone-number services, and programmable communications.\n\nStrong Python development experience, including backend services, APIs, integrations, testing, and automation.\n\nStrong understanding of SIP, SDP, RTP, RTCP, DTMF, codecs, and call-state management.\n\nExperience developing dial plans and complex inbound and outbound call-routing logic.\n\nKnowledge of SIP registration, authentication, trunks, number normalization, least-cost routing, and failover.\n\nUnderstanding ofAI voice-agent architecture, including speech recognition, speech synthesis, language models, conversation state, and tool calling.\n\nExperience integrating APIs, webhooks, databases, and third-party business systems.\n\nStrong understanding of TCP/IP, UDP, DNS, NAT, TLS, WebSockets, firewalls, and load balancing.\n\nFamiliarity with MySQL, MariaDB, PostgreSQL, or comparable relational databases.\n\nLinux administration, Git, automated testing, CI/CD, and command-line troubleshooting experience.\n\nAbility to diagnose complex VoIP and AI call-flow issues using logs, traces, metrics, and packet captures.\n\nStrong analytical, documentation, collaboration, and communication skills.\n\nPreferred Qualifications\nExperience building AI voice agents, virtual receptionists, conversational IVRs, or contact-center automation.\n\nExperience with React and modern JavaScript or TypeScript.\n\nFamiliarity with real-time AI APIs, retrieval-augmented generation, function calling, guardrails, and conversation evaluation.\n\nAdvanced experience with Bandwidth or Twilio voice, messaging, number provisioning, emergency services, and carrier integrations.\n\nExperience with WebRTC, SIP over WebSocket, STUN, TURN, and ICE.\n\nFamiliarity with SBCs, RTPengine, RTProxy, media servers, and SIPp.\n\nExperience integrating CRM, scheduling, ticketing, payment, or contact-center platforms.\n\nExperience with E911, CNAM, LNP, SMS/MMS, fax, call recording, and carrier services.\n\nKnowledge of telecom fraud prevention, robocall mitigation, STIR/SHAKEN, consent requirements, and privacy regulations.\n\nExperience with Docker, Kubernetes, AWS, Azure, or another cloud platform.\n\nFamiliarity with high-availability architectures, replication, clustering, geographic redundancy, and high-volume multi-tenant hosted PBX environments.\n\nKnowledge of Homer, Prometheus, Grafana, ELK/OpenSearch, or comparable observability tools.\n\nGood to Have\nHands-on experience with WebRTC for real-time audio/video communication in web applications.\n\nFamiliarity with SIP-based communication and JavaScript SIP libraries such as SIP.js or JsSIP.\n\nUnderstanding of browser-based WebRTC APIs, including media streams, peer connections, and real-time communication concepts.\n\nSuccess in This Role\nSuccess will be measured by platform reliability, voice quality, accuratecall routing, dependable Bandwidth and Twilio integrations, AI-agent performance, safe and effective customer interactions, rapid incident resolution, maintainable Python code, effective automation, and delivery of scalable VoIP and virtual receptionist services.\n\nExciting Benefits we offer:\nMarket-leading Salary\nMedical Coverage - Self & Dependents\nParents Medical Coverage\nProvident Fund\nEmployee Performance-based bonuses\nHome Internet Subsidy\nConveyance Allowance\nProfit Sharing Plan [Tenured Employees Only]\nLife Benefit\nChild Care Facility\nCompany Provided Lunch/Dinner\nProfessional Development Budget\nRecreational area for in-house games\nSporadic On-shore training opportunities\nFriendly work environment\nLeave Encashment\nDisclaimer: At Contour, we attribute our success to the unique contributions of our diverse staff. We’re committed to fostering a culture of respect that thrives on the varied perspectives and experiences of all individuals we recruit, employ, promote, and compensate. Since day one, we’ve adhered to a policy that champions a work environment honoring the worth and dignity of each person while being free from all forms of employment discrimination.\nIn our continuous effort to promote inclusivity, we extend our commitment to individuals with special needs by providing reasonable accommodations. We actively encourage qualified individuals with special needs to apply for the various openings within our company. Should you require assistance in completing the application process or have any inquiries regarding special facilities, please do not hesitate to contact our HR team. Your unique talents and abilities are welcomed and valued here.","description_format":"text","description_chars":8468,"description_truncated":false,"requirements":{"experience_years_min":null,"management_years_min":null,"team_size_min":null,"manages_managers":false,"education":null,"security_clearance":false,"languages":[]},"benefits":["Professional development"],"hiring_locations":[],"hiring_excludes":[],"relocation_offered":false,"industries":["Unified Communications"],"lifecycle":[{"event":"open","at":"2026-08-21T00:00:00Z"}],"visa":[],"liveness":{"score":10,"band":"cold","label":"Long shot","p_open":1,"p_active":0.231,"p_room":0.44,"age_days":68,"expected_fill_days":48,"reasons":["conf:5","agency","stale_co","velocity","win:tail","crowd:"],"computed_at":"2026-10-28T05:59:10Z"},"pay":null,"html_url":"https://alion.io/job/talentmanagementsolution-voip-and-ai-communications-developer","json_url":"https://alion.io/job/talentmanagementsolution-voip-and-ai-communications-developer.json","meta":{"generated_at":"2026-10-29T05:09:21Z","cache_seconds":300,"methodology":"https://alion.io/methodology","terms":"https://alion.io/terms","contact":"https://alion.io/contact","api":"https://alion.io/developers","about":"Alion is a live layer of people, companies and AI agents: who they are, whether they are real and active right now, what they do and how to work with them, readable by people and by agents and paid per call.","catalog":"https://alion.io/catalog.json","usage":{"tier":"crawler_verified","counted_by":"address","units_charged":1,"used_today":7959,"day_limit":null,"remaining_today":null,"minute_limit":300,"resets_at":"2026-10-30T00:00:00Z"}},"offers":[{"id":"company.slices","title":"One company in depth, by slice","status":"live","price":{"credits":0.02,"usd":0.002,"plus_per_slice":{"credits":0.05,"usd":0.005}},"unit":"per company, plus each slice with data","note":"the employer in depth","call":{"mcp_tool":"get_company","arguments":{"id":3420},"rest":"https://alion.io/mcp/rest/get_company?id=3420"},"human":"https://alion.io/catalog?offer=company.slices&for=job%2Ftalentmanagementsolution-voip-and-ai-communications-developer"},{"id":"market.stats","title":"A market slice: pay, demand and time to fill","status":"live","price":{"credits":1,"usd":0.1},"unit":"per slice","note":"pay, demand and time to fill for this role and place","call":{"mcp_tool":"market_stats"},"human":"https://alion.io/catalog?offer=market.stats&for=job%2Ftalentmanagementsolution-voip-and-ai-communications-developer"},{"id":"job.search","title":"Open jobs by role, technology, place, pay and visa","status":"live","price":{"credits":0.02,"usd":0.002},"unit":"per posting in a list","note":"similar open postings","call":{"mcp_tool":"search_jobs"},"human":"https://alion.io/catalog?offer=job.search&for=job%2Ftalentmanagementsolution-voip-and-ai-communications-developer"},{"id":"company.verify","title":"Is this company real and active right now","status":"pilot","price":null,"unit":"per company","request":{"url":"https://alion.io/catalog/request","method":"POST","body":"{\"offer\": \"company.verify\", \"for\": \"job/talentmanagementsolution-voip-and-ai-communications-developer\", \"note\": \"what you need it for\"}"},"human":"https://alion.io/catalog?offer=company.verify&for=job%2Ftalentmanagementsolution-voip-and-ai-communications-developer"}],"agent":{"mcp":"https://alion.io/mcp/jobs","mcp_open":"https://alion.io/mcp/open","next":[{"tool":"get_job","arguments":{"id":68811}},{"tool":"search_jobs","arguments":{"company":"talentmanagementsolution.com","detail":"compact"}},{"tool":"match_people","arguments":{"job_id":68811},"note":"people open to offers who fit this vacancy"}],"note":"The same data through MCP tools: https://alion.io/mcp/open needs no sign-in (compact searches, postings, people); https://alion.io/mcp with an Alion account has everything. Docs: https://alion.io/developers"}}