Telnyx

Role Description Reporting to the Regional Sales Director, you will be responsible for driving Telnyx's expansion across the APAC region. As we scale rapidly from our ANZ foundation into Singapore and beyond, this is a high-impact opportunity to own a territory and shape how businesses across APAC adopt next-generation communications infrastructure. Telnyx is a global leader in Voice AI and programmable telecom infrastructure — we provide the building blocks (SIP trunking, Voice API, SMS, networking, and AI-powered voice solutions) that companies use to embed real-time communications into their products. From AI-driven call centers to embedded phone systems in SaaS platforms, we're the infrastructure layer powering the future of voice. Supported by our marketing and BDR teams, you will focus on identifying and closing new high-value customers, building long-term strategic relationships that drive sustained revenue growth. This role would suit an experienced sales professional who thrives in a fast-paced startup environment and can operate independently in a remote-first setting. Responsibilities - Partner with the Director of Sales to develop and execute a sales strategy across the APAC region — you'll own your territory and be accountable for delivering revenue targets. - Build and manage a strong pipeline through a mix of outbound prospecting and inbound leads. - Establish trusted advisor relationships with key customers, driving continued adoption and expansion of Telnyx's products and services. - Deliver compelling Telnyx portal and platform demos for prospects, with support from our Sales Engineering team. - Work closely with customers to define critical business goals and KPIs, helping them achieve measurable outcomes with Telnyx. - Collaborate with marketing, product management, and sales peers to optimize client value and amplify Telnyx's market presence. - Provide accurate reporting and forecasting at every stage of the pipeline. Qualifications - Adaptive and introspective; willing to learn, teach, lead and follow. - 3+ years of selling experience in enterprise consumption-based software platforms. - SaaS, CPaaS, or telecommunications industry experience. - Proven track record of consistently exceeding quota. - Hunter mentality with experience building outbound strategies across phone, email, and social selling. - Impeccable written and verbal communication skills — you're a strong listener and a clear communicator. - Ability to identify and sell to C-Level targets, as well as across Product Development and IT contacts. Bonus points for - Mandarin language skills. - Telco, CPaaS, UCaaS, CCaaS, or Voice AI sales experience. - Established relationships with customers who trust and respect your advice. - Proven consultative selling skills, including the ability to articulate a clear ROI value proposition. - Experience with sales methodologies such as Challenger, SPIN, MEDDPICC, etc.

Role Description We are looking for a Roaming (IREG) Engineer with hands-on experience in international roaming operations and a passion for the telecom industry. You understand the GSMA roaming ecosystem inside out and can independently drive partner onboarding from test planning through to production traffic. You are a methodical tester, a clear communicator, and comfortable working across multiple partner streams simultaneously. You are interested in using AI tools and workflows to enhance your efficiency. The opportunity is within the Roaming Management squad which is responsible for the technical validation, onboarding, and operational management of all roaming partnerships. Working closely with the commercial team, you will be the engine that turns signed agreements into live, tested, production-ready roaming relationships. Responsibilities - Execute IREG testing for new roaming partners (2G/3G/4G/5G) following GSMA IR.21 and IREG guidelines. - Drive end-to-end partner onboarding from a technical perspective: test planning, execution, fault resolution, and sign-off. - Prepare and maintain IR.21 documentation for the Telnyx network. - Validate and troubleshoot roaming signaling (Diameter S6a, MAP, GTP-C) during testing and post-launch. - Manage TAP and NRTRDE file reconciliation with roaming partners. - Coordinate with Platform Engineering and Software Engineering squads for network configuration changes. - Support roaming escalations and production incidents related to roaming connectivity. - Maintain accurate records of test results, partner status, and roaming configurations. Qualifications - 3+ years experience in international roaming operations, IREG testing, or a similar role at an MNO, MVNO, or roaming hub. - Strong understanding of GSMA standards: IR.21, IR.34, IR.65, IREG test specifications, AA.14, AA.19. - Hands-on experience with roaming signaling protocols: Diameter (S6a, S6d, S13), MAP, CAP, GTP-C/GTP-U. - Experience with TAP (R13+) and NRTRDE file processing and reconciliation. - Familiarity with roaming testing tools and signaling analysis (Wireshark, pcap analysis). - Understanding of LTE/5G roaming architecture (S8, N32, SEPP). - Ability to work independently across multiple partner onboarding streams simultaneously. - Strong written and verbal communication skills for cross-functional and external partner coordination. - Interest in using AI tools and workflows to improve efficiency. Bonus Points - Experience with roaming steering platforms. - Familiarity with eSIM and eUICC provisioning in a roaming context. - Experience with cloud-native telecom infrastructure. - Knowledge of VoLTE roaming (SIP, IMS) and VoLTE/VoWiFi testing. - Experience working with roaming hubs (e.g., BICS, Syniverse, Comfone). - Experience building AI-assisted workflows (e.g., LLM-powered analysis, copilots, automated reporting).

• Design, build and maintain APIs, services, and systems across Telnyx’s engineering teams. • Debug production issues across gateway, auth, network, and application layers. • Work with engineers across the company to build new features at large-scale, both internally and externally. • Improve engineering standards, tooling, processes, observability and reliability

• Design, build and maintain APIs, services, and systems across Telnyx’s engineering teams. • Debug production issues across services and multiple levels of the stack. • Work with engineers across the company to build new features at large-scale. • Improve engineering standards, tooling, and processes.

• Rotate across engineering squads to tackle high-impact projects • Ship production code in multiple languages and stacks (Elixir, Python, Java, Go) • Design and implement features end-to-end • Debug and optimize distributed systems processing thousands of messages per second • Mentor engineers across teams • Work directly with product and engineering leadership • Push code to production multiple times a day

• Sell programmable voice, messaging, Voice AI, wireless, and networking products to both technical and business audiences — from developer teams building on our APIs to C-suite stakeholders evaluating infrastructure partners. • Own your full sales cycle: prospect, qualify, demo, negotiate, and close. • Articulate Telnyx's differentiated value (private network, carrier-grade reliability, AI-native capabilities) and navigate objections against competitors like Twilio and Vonage. • Partner with Solutions Engineering to design custom communications and AI solutions that solve real business problems and create measurable ROI. • Maintain accurate pipeline reporting and forecasting — no surprises. • Help customers define success metrics and critical goals post-sale. • Be a trusted advisor, not just a vendor — help customers hit their business objectives with the right Telnyx solutions. • Execute on both quick-win transactional deals and complex, multi-stakeholder enterprise engagements.

Role Description We’re looking for people with a strong background or interest in building successful products or systems; you’re comfortable in dealing with lots of moving pieces; you have exquisite attention to detail; and you’re comfortable learning new technologies and systems. The Opportunity: - Have backend engineers in almost every team across Telnyx, making significant decisions for the company. - Work with other engineers to build delightful features that span various parts of the system. - Collaborate with business, sales, and operations teams to understand and solve users’ pain points. - Design, build, and maintain APIs, services, and systems across Telnyx’s engineering teams. - Debug production issues across services and multiple levels of the stack. - Work with engineers across the company to build new features at large scale. - Improve engineering standards, tooling, and processes. Qualifications - 6+ years of professional software development experience with a functional programming language (Elixir/Erlang is preferred). - Experience working with relational databases at scale. - Deep knowledge of microservice architecture patterns and anti-patterns. - Experience with message queues like RabbitMQ and Kafka. - Understanding of the challenges inherent in concurrent and distributed programming. - Experience with more exotic databases/key-value stores such as ETS, Mnesia, Cassandra, and Redis. - Familiarity with Docker, Kubernetes, Consul, Jenkins, Prometheus, or RabbitMQ. Bonus Points For - A thoughtful approach to decision-making, knowing when to move fast and when to long-term optimize. - Desire to work in a fast-paced, product-driven environment. - Keeping up to date with the latest technologies and patterns and enjoying sharing what you’ve learned.

• Design, deploy, and manage highly available, scalable, and secure infrastructure solutions which include: Kubernetes on bare metal, Proxmox and Ceph • Design and maintain Kubernetes, Ceph and Proxmox platforms for engineering team consumption • Ensure that hardware design meets business and technical requirements, including performance, scalability, and reliability • Evaluate and recommend new technologies and tools to improve the efficiency and effectiveness of virtualization solutions • Ensure the reliability, performance, and scalability of our edge data centers • Troubleshoot and resolve complex infrastructure issues, ensuring optimal performance and reliability • Develop and maintain infrastructure-as-code (IaC) modules and configuration management to automate deployment, management, and monitoring processes

Role Description We’re looking for a Junior Security Operations Engineer who is AI-Forward to help scale and modernize our SecOps program. This is a hands-on, builder role for someone who will design and ship the security tooling that powers our triage, investigations, and response workflows. You’ll report to the Technical Operations Director and work alongside our GRC lead to improve our: - Vulnerability intake - Threat response - Darkweb posture - Internal security tooling A core part of this role is building AI-assisted security tooling: - Triage agents that pre-classify bug bounty reports - Investigation copilots that pull context from logs and SIEM data - Response workflows that draft remediation steps and track them to closure You’ll spend as much time wiring up that tooling as you will reproducing vulnerabilities and working incidents. This role suits someone who thrives in a lean, high-impact environment, has strong opinions on where humans add value versus where tooling should take over, and wants to shape how a modern security team operates. Qualifications - Previous experience in a SecOps, Security Analyst, or Threat Response role - Proven ability to understand and reproduce technical vulnerabilities - Experience with bug bounty triage (HackerOne, Bugcrowd, or similar) - Hands-on exposure to SIEM, EDR, and DLP tools in production environments - A genuine, demonstrated interest in applying AI/LLMs to security work - Scripting and automation skills in Python, Bash, or similar - Comfort working autonomously across time zones and asynchronously - Strong written communication skills Requirements - Triage & Vulnerability Management - Review incoming vulnerability reports from our bug bounty intake; reproduce and document valid issues for engineering teams - Build the tooling that improves signal-to-noise: automate duplicate detection, spam filtering, and abuse flagging - Act on DAST findings: coordinate remediation, verify fixes, and re-test - Track remediation timelines for critical vulnerabilities and keep stakeholders honest on SLAs - Threat Response & Monitoring - Monitor and respond to EDR and cloud security alerts; investigate, contain, and document - Analyze darkweb findings and credential exposures; shape our darkweb monitoring practices and tooling over time - Improve detection coverage: tune noisy rules, close gaps, and enrich alerts with context - Help configure and tune DLP, SIEM, and AI security tooling - Security Tooling (core to this role) - Build AI-assisted triage tooling that pre-classifies bug bounty reports - Build investigation tooling: LLM-backed copilots and Slack bots - Build response tooling: workflows that draft remediation steps and track issues to closure - Evaluate emerging AI security tooling and bring what’s genuinely useful into the stack - Apply a security-minded lens to our own AI usage - Compliance & Cross-Functional - Support audit evidence collection for SOC 2, ISO 27001, and PCI DSS - Partner with ITOps to verify patches, endpoint coverage, and access hygiene Benefits - Full-time contract - Remote-first and async-friendly - Potential to extend or convert based on fit - Reports to the Technical Operations Director; works closely with the GRC lead and IT Operations How We Work We’re a lean, high-trust team. We value people who ship, who can operate independently, and who treat security as an engineering problem rather than a checklist. If you’re someone who sees a repetitive task and immediately thinks “this should be a script, or better yet, an agent,” you’ll fit in here. To Apply Tell us about a time you used AI, automation, or custom tooling to meaningfully change how a security workflow ran. What was manual before, what it looked like after, and what you learned. Links to code, writeups, or demos are welcome.

Role Description We’re looking for people with a strong background or interest in building successful products or systems; you’re comfortable in dealing with lots of moving pieces; you have exquisite attention to detail; and you’re comfortable learning new technologies and systems. The Opportunity: - Have backend engineers in almost every team across Telnyx, and in that role, you’ll be making some of the most significant decisions for the company. - Work with other engineers to build delightful features that span various parts of the system, as well as our business, sales, and operations teams to understand and solve our users’ pain points. - Design, build, and maintain APIs, services, and systems across Telnyx’s engineering teams. - Debug production issues across services and multiple levels of the stack. - Work with engineers across the company to build new features at large scale. - Improve engineering standards, tooling, and processes. Qualifications - 6+ years of professional software development experience with a functional programming language (Elixir/Erlang is preferred). - Experience working with relational databases at scale. - Deep knowledge of microservice architecture patterns and anti-patterns. - Experience with message queues like RabbitMQ and Kafka. - Understanding of the challenges inherent in concurrent and distributed programming. - Experience with more exotic databases/key-value stores such as ETS, Mnesia, Cassandra, and Redis. - Familiarity with Docker, Kubernetes, Consul, Jenkins, Prometheus, or RabbitMQ. Requirements - Take a thoughtful approach to decision-making, knowing when to move fast and when to long-term optimize. - Desire to work in a fast-paced, product-driven environment. - Keep up to date with the latest technologies and patterns and enjoy sharing what you’ve learned.