Head of Software Development – Platform Architecture

🕒 November 26, 2025

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Signalmash

WebsiteLinkedInAll Job Openings

51 - 200 employees

Founded 2020

📡 Telecommunications

🔌 API

☁️ SaaS

Telecommunications • API • SaaS

Signalmash is a boutique communications platform (CPaaS) that provides businesses with carrier-grade messaging and voice services, developer-friendly APIs, and white‑glove support. Their offerings include Messaging APIs (10DLC, toll-free, short code), RCS and MMS/SMS, SIP/Voice trunking, CCaaS/hosted PBX, phone number provisioning and branded caller ID, plus compliance, KYC, billing and communications operations as managed services. Signalmash targets developers, ISVs, resellers and enterprises seeking reliable, compliant communications infrastructure and personalized onboarding and support.

📋 Description

• Platform Architecture • Own and evolve the Signalmash real-time communications platform • Lead architecture across SIP, RTP, WebRTC, messaging gateways, routing engines, and distributed backend systems • Integrate and optimize open-source telecom components such as Kamailio, OpenSIPS, FreeSWITCH, Asterisk, Kannel, Jasmin, Janus, etc. • Improve scalability, latency, observability, and fault tolerance • Drive internal tools for monitoring, diagnostics, routing intelligence, and security • Engineering Leadership • Lead outsourced engineering partners and build a high-performing internal team • Define engineering standards, architecture guidelines, and delivery processes • Write technical specs, review designs, and mentor engineers • Drive clarity, accountability, and engineering excellence • AI Integration Architect • Architect AI-powered telecom workflows • Build intelligent routing, fraud detection, diagnostics, automation, and developer tooling • Implement LLM-based systems, RAG pipelines, vector search, and agent-based orchestration • Optimize AI for performance, reliability, and cost efficiency • Integrate modern AI coding/automation tools into engineering processes

🎯 Requirements

• 7+ years in backend, systems, or platform engineering (or equivalent expertise) • Strong knowledge of telecom/RTC technologies: SIP, RTP, codecs, signaling, media servers, WebRTC, messaging gateways • Hands-on experience with open-source telecom stacks (Kamailio, OpenSIPS, FreeSWITCH, Asterisk, Kannel, Jasmin, Janus) • Strong backend engineering experience in Go, Python, Java, Node.js, or similar • Experience building large-scale, distributed, fault-tolerant systems • Proven leadership experience managing outsourced + internal teams • Practical experience with AI/LLM integrations (RAG, vector DBs, agents, orchestration frameworks) • Excellent English communication (spoken & written) • Availability for US-morning overlap & occasional travel

🏖️ Benefits

• Fully remote role with flexible work arrangements • Opportunity to build a next-generation telecom+AI platform • Work alongside global engineering and executive leadership • Ownership over architecture direction and technical strategy • Competitive compensation and growth opportunities • Occasional international travel for team and customer meetings