Principal Engineer, Product Security

Parloa

ABOUT PARLOA Parloa’s mission is to make every customer conversation feel effortless for both customers and the companies serving them. As agentic AI accelerates, Parloans are shaping the foundation of a new era in customer experience, one where customer support is no longer transactions, but meaningful exchanges. It is not just a vision; Parloa has powered over ONE BILLION interactions between global enterprise brands and their customers, with companies like Booking.com, HealthEquity, Allianz, SAP, BarmeniaGothaer, and TUI already deploying Parloa at scale. ABOUT THE ROLE: Security at Parloa isn't an afterthought — it's foundational to how we build and operate an AI platform that enterprises trust with sensitive voice and chat data at scale. As Principal Security Engineer, you'll set the technical direction for security across our engineering organisation: from secure architecture and threat modelling, to embedding security thinking into how a fast-growing AI company designs, builds, and ships. This is a hands-on, high-ownership role. You won't just maintain a security programme — you'll define it, working across infrastructure, product, and AI/ML teams to ensure security is built in from the start, not bolted on afterwards. You'll be a technical authority and a multiplier, raising the security bar across the whole organisation. AREAS OF OWNERSHIP: * Own the technical security engineering strategy across Parloa's platform, infrastructure, and AI/ML systems * Lead deep threat modelling and architecture reviews for new and existing systems, including LLM-based and voice/chat AI pipelines * Drive secure-by-design practices into the software development lifecycle, partnering closely with engineering teams rather than gatekeeping after the fact * Design and improve detection, monitoring, and incident response capabilities across cloud and AI infrastructure * Guide security architecture for multi-tenant, sensitive data flows across Parloa's enterprise customer base * Support compliance and governance efforts (e.g. SOC 2, ISO 27001) by ensuring technical controls are sound and well-documented * Mentor senior+ engineers and security practitioners, building security capability across the wider organisation * Act as a trusted technical voice in conversations with enterprise customers and partners on security matters * Stay ahead of the evolving threat landscape for AI and voice/chat systems, bringing new risks and mitigations to the team proactively WHO YOU ARE: * Extensive experience (15+ years) in security engineering, with demonstrated impact at Staff or Principal level * Deep expertise in application security and/or cloud security, threat modelling, and secure architecture for distributed, cloud-native systems * Hands-on experience with cloud security across AWS, GCP, or Azure, and container orchestration (Kubernetes) * Strong understanding of identity and access management, encryption, and secure data handling at enterprise scale * Experience securing systems handling sensitive or regulated data, ideally with exposure to GDPR or similar frameworks * A track record of driving security strategy and influencing engineering culture across an organisation, not just executing individual fixes * Excellent communication skills, able to explain security risk and trade-offs clearly to engineers, leadership, and customers * Genuine curiosity about AI systems and a willingness to dig into the emerging security challenges they introduce OUR ENGINEERING VALUES: At Parloa, we hire, promote, and evaluate based on cultural and technical excellence. You’ll thrive here if you: * Earn Trust – act with transparency and reliability. * Obsess Over Customers – always start with the customer problem. * Think Big – set bold goals and pursue them fearlessly. * Have Integrity – do the right thing, especially when it’s hard. * Disagree & Commit – debate with candor, align fast, and deliver. * Own It – take full responsibility for outcomes, not just tasks. * Dive Deep – master the details without losing sight of the big picture. * Bias for Action – move fast, decide quickly, iterate fearlessly. * Deliver Value – measure success by customer and business impact. * Insist on the Highest Standards – raise the bar continuously. * Go the Extra Mile – make the impossible possible. * Hire & Elevate the Best – raise the bar with every hire   OUR RECRUITING PROCESS: Recruiter Interview → Technical Peer Interview → Expert interview(s) → Bar Raiser   WHY PARLOA? We’re at the beginning of a new era in customer experience, one where AI doesn’t just respond, but understands, reasons, and takes action. We’re building agentic AI that enterprises trust with their most important customer moments: complex questions, high volumes, real stakes. When millions of people reach out to a brand, those interactions aren’t just support tickets; they’re defining experiences. We’re here to raise the standard: making every conversation seamless, intelligent, and genuinely helpful. If you care about shaping how businesses and customers connect at scale—and want your work to matter in real, everyday moments—this is where you do it. At Parloa, ownership isn’t a buzzword; it means being accountable for outcomes, not just tasks. We operate in a category that’s evolving fast, where the bar is high, and the problems are complex. We hire people who think in solutions, communicate with clarity, and follow through. People who are comfortable making decisions, taking responsibility, and raising the standard for themselves and those around them. We’ve grown beyond the earliest startup phase, but we’ve kept the intensity: fast execution, direct feedback, and a strong expectation to contribute meaningfully from day one. Backed by leading global investors like General Catalyst, EQT Ventures, and Altimeter Capital, we’re scaling with a clear ambition: to become the global category leader in enterprise-grade conversational AI.     ---------------------------------------------------------------------------------------------------------------------------------- Parloa is committed to upholding the highest data protection standards for our clients' and employees' data. All our employees are instrumental in ensuring the utmost care, GDPR, and ISO compliance, including ISO 27001, in handling sensitive information. Parloa is an e-verify employer in the USA. Please click here to learn more. * We provide equal opportunities to all qualified applicants regardless race, gender, sexual orientation, age, religion, national origin, disability status, socioeconomic background and other characteristics.

Parloa

ABOUT PARLOA Parloa’s mission is to make every customer conversation feel effortless for both customers and the companies serving them. As agentic AI accelerates, Parloans are shaping the foundation of a new era in customer experience, one where customer support is no longer transactions, but meaningful exchanges. It is not just a vision; Parloa has powered over ONE BILLION interactions between global enterprise brands and their customers, with companies like Booking.com, HealthEquity, Allianz, SAP, BarmeniaGothaer, and TUI already deploying Parloa at scale. ABOUT THE ROLE: Voice is one of the most demanding and differentiated parts of what we do. As Principal Software Engineer for Voice/VoIP, you'll own the technical direction of our real-time voice infrastructure — the systems that let AI agents have natural, low-latency phone conversations at enterprise scale, across telephony providers, carriers, and global markets. This is a hands-on technical leadership role. You'll set architectural direction, solve the hardest problems yourself, and raise the bar for how the wider engineering org builds and reasons about voice systems. You'll work closely with infrastructure, AI/ML, and product teams to ensure our voice stack is fast, reliable, and ready to scale globally. AREAS OF OWNERSHIP: * Own the architecture and technical roadmap for Parloa's Voice/VoIP infrastructure, including SIP trunking, media handling, and real-time audio pipelines * Design for low-latency, high-availability voice at enterprise scale — across global telephony carriers and providers * Drive technical decisions on protocols and standards (SIP, SDP, RTP/SRTP, RTCP, WebRTC, ICE, STUN/TURN) and real-time media transport * Partner with AI/ML teams to optimise the integration between voice infrastructure and conversational AI models (ASR, TTS, turn-taking, barge-in) * Diagnose and resolve deep, systemic issues in call quality, latency, jitter, and packet loss across distributed, multi-region deployments * Define and uphold engineering standards for reliability, observability, and security across the voice stack * Mentor senior and staff engineers, acting as a technical multiplier across the organisation * Evaluate and integrate with telephony providers, carriers, and SIP trunk vendors as Parloa expands into new markets * Represent Parloa's technical voice expertise in conversations with enterprise customers and partners where needed WHO YOU ARE: * 10+ years of engineering experience, including 5+ years hands-on building, operating, or debugging production Voice/VoIP, SIP, WebRTC, or carrier-grade voice infrastructure * Strong knowledge of SIP, SDP, RTP/SRTP, RTCP, WebRTC, ICE, and real-time media transport protocols * Hands-on understanding of audio codecs and media behavior, including Opus, G.711/G.722, codec negotiation/transcoding, DTMF/RFC2833, jitter buffers, packetization, and codec-related quality/latency trade-offs * Experience building or operating large-scale, distributed, real-time systems with strict latency and availability requirements * A track record of owning architecture for complex systems and driving technical decisions with broad organisational impact * Experience working with telephony carriers, SIP trunk providers, or PSTN integrations at scale * Deep, hands-on ownership of production SIP-based voice infrastructure at enterprise scale (e.g. Kamailio, FreeSWITCH, Asterisk, pjsip) * Strong systems programming skills in one or more of Go, C, C++ or Rust, with the ability to work at the media/transport layer. * Comfort operating in cloud environments (AWS, GCP, or Azure) and with container orchestration (Kubernetes) * Excellent communication skills — able to explain complex technical trade-offs to engineers and non-engineers alike * A genuine interest in AI and conversational technology, and how voice infrastructure underpins it * Experience instrumenting and operating voice-quality observability — call-quality metrics (e.g. MOS), per-leg call tracing, and diagnosing jitter, latency, and packet loss from telemetry OUR ENGINEERING VALUES: At Parloa, we hire, promote, and evaluate based on cultural and technical excellence. You’ll thrive here if you: * Earn Trust – act with transparency and reliability. * Obsess Over Customers – always start with the customer problem. * Think Big – set bold goals and pursue them fearlessly. * Have Integrity – do the right thing, especially when it’s hard. * Disagree & Commit – debate with candor, align fast, and deliver. * Own It – take full responsibility for outcomes, not just tasks. * Dive Deep – master the details without losing sight of the big picture. * Bias for Action – move fast, decide quickly, iterate fearlessly. * Deliver Value – measure success by customer and business impact. * Insist on the Highest Standards – raise the bar continuously. * Go the Extra Mile – make the impossible possible. * Hire & Elevate the Best – raise the bar with every hire OUR RECRUITING PROCESS: Recruiter Call → Technical Peer Interview → 360° Tech Interview Loop → Bar Raiser WHY PARLOA? We’re at the beginning of a new era in customer experience, one where AI doesn’t just respond, but understands, reasons, and takes action. We’re building agentic AI that enterprises trust with their most important customer moments: complex questions, high volumes, real stakes. When millions of people reach out to a brand, those interactions aren’t just support tickets; they’re defining experiences. We’re here to raise the standard: making every conversation seamless, intelligent, and genuinely helpful. If you care about shaping how businesses and customers connect at scale—and want your work to matter in real, everyday moments—this is where you do it. At Parloa, ownership isn’t a buzzword; it means being accountable for outcomes, not just tasks. We operate in a category that’s evolving fast, where the bar is high, and the problems are complex. We hire people who think in solutions, communicate with clarity, and follow through. People who are comfortable making decisions, taking responsibility, and raising the standard for themselves and those around them. We’ve grown beyond the earliest startup phase, but we’ve kept the intensity: fast execution, direct feedback, and a strong expectation to contribute meaningfully from day one. Backed by leading global investors like General Catalyst, EQT Ventures, and Altimeter Capital, we’re scaling with a clear ambition: to become the global category leader in enterprise-grade conversational AI.   ---------------------------------------------------------------------------------------------------------------------------------- Parloa is committed to upholding the highest data protection standards for our clients' and employees' data. All our employees are instrumental in ensuring the utmost care, GDPR, and ISO compliance, including ISO 27001, in handling sensitive information. Parloa is an e-verify employer in the USA. Please click here to learn more. * We provide equal opportunities to all qualified applicants regardless race, gender, sexual orientation, age, religion, national origin, disability status, socioeconomic background and other characteristics.

Parloa

ABOUT PARLOA Parloa’s mission is to make every customer conversation feel effortless for both customers and the companies serving them. As agentic AI accelerates, Parloans are shaping the foundation of a new era in customer experience, one where customer support is no longer transactions, but meaningful exchanges. It is not just a vision; Parloa has powered over ONE BILLION interactions between global enterprise brands and their customers, with companies like Booking.com, HealthEquity, Allianz, SAP, BarmeniaGothaer, and TUI already deploying Parloa at scale.   Frontend engineers at Parloa primarily strengthen our central frontend platform—microfrontend architecture, Server-Driven UI library, and our shared design system—so product teams can ship agent management platform UI faster with clear ownership and fewer coordination dependencies. Some engineers are embedded in product teams for deeper, custom UI where platform patterns do not apply. ABOUT THE ROLE: * Define and drive technical strategy for the frontend platform: microfrontend architecture, Server-Driven UI library, design system, and developer experience for internal and product consumers. * Lead cross-team architecture so platform capabilities and product features integrate through clear contracts (APIs, UI boundaries, release and rollout patterns)—with enough full-stack depth (TypeScript/Node services, integration with backend teams) to own end-to-end platform outcomes, not only React surfaces. * Balance short-term velocity with long-term resilience, making smart trade-offs on complexity, cost, and scalability. * Remain hands-on on highest-leverage platform code, critical design reviews, and precedent-setting implementations. * Act as a force multiplier by mentoring Staff Engineers and influencing the careers of future Principal-level talent.  * Serve as a trusted advisor to leadership including advising on frontend capacity, standards, and hiring bar. * Set cultural standards for fearless iteration, bias for action, and pragmatic perfectionism—design for tomorrow, build for today. * Lead frontend alignment with the Architecture Office and drive org-wide frontend technical direction—including how the platform evolves, how embedded product UI stays compatible, and how we scale agent management platform UI without coordination tax. * Demonstrate org-level impact across microfrontend boundaries/versioning and independent deployability, Server-Driven UI library adoption decisions, and design-system governance (contribution model, migration strategy, and breaking-change management) with measurable improvements across multiple teams. OUR TECH STACK: * TypeScript, React, React Router, styled-components, TanStack Query, nanostores * Infrastructure: Micro-frontends with single-spa, Webpack, Turborepo, pnpm workspaces, GitHub Actions, Azure Blob Storage * Testing: Vitest, RTL, MSW, Playwright WHO YOU ARE: * Professional experience building and shipping production systems in fast-moving environments. * You take full ownership. When something matters, you drive it to completion and stand behind the outcome. * You have a strong bias for action. You move quickly, make informed decisions, and iterate based on real-world feedback. * You are comfortable operating in ambiguity and can turn fuzzy problems into shipped results. * You think in systems: scalability, reliability, performance, and security are part of your default design mindset. * You define success clearly and measure it; you care deeply about customer impact and business outcomes. * You hold a high craftsmanship bar: clean, secure, well-tested code is your baseline. * You give and receive candid feedback, and you elevate those around you through mentoring and technical leadership. * You balance pragmatism with ambition, building for today while designing for tomorrow. * You want to help build not just features, but one of Europe’s most respected engineering organizations. WHAT’S IN IT FOR YOU? * Join a diverse team of 40+ nationalities with flat hierarchies and a collaborative company culture. * Opportunity to build and scale your career at the intersection of customer-facing roles and engineering in a dynamic startup on its journey to become an international leader in SaaS platforms for Conversational AI. * Deutschland ticket, Urban Sports Club, Job Rad, Nilo Health, weekly sponsored office lunches * Competitive compensation and equity package. * Flexible working hours, 28 vacation days and workation opportunities. * Access to a training and development budget for continuous professional growth. * Regular team events, game nights, and other social activities. OUR VALUES At Parloa, we hire, promote, and evaluate based on cultural and technical excellence. You’ll thrive here if you: * Earn Trust – act with transparency and reliability. * Obsess Over Customers – always start with the customer problem. * Think Big – set bold goals and pursue them fearlessly. * Have Integrity – do the right thing, especially when it’s hard. * Disagree & Commit – debate with candor, align fast, and deliver. * Own It – take full responsibility for outcomes, not just tasks. * Dive Deep – master the details without losing sight of the big picture. * Bias for Action – move fast, decide quickly, iterate fearlessly. * Deliver Value – measure success by customer and business impact. * Insist on the Highest Standards – raise the bar continuously. * Go the Extra Mile – make the impossible possible. * Hire & Elevate the Best – raise the bar with every hire YOUR RECRUITING PROCESS AT PARLOA Recruiter Call → Technical Peer Interview → 360° Tech Interview Loop → Bar Raiser   WHY PARLOA?  Parloa is one of the fastest growing startups in the world of Generative AI and customer service. Parloa’s voice-first GenAI platform for contact centers is built on the best AI technology to automate customer service with natural-sounding conversations for outstanding experiences on all communication channels. Leveraging natural language processing (NLP) and machine learning, Parloa creates intelligent phone and chat solutions for businesses that turn contact centers into value centers by boosting customer service efficiency. The Parloa platform resolves the majority of customer queries quickly and automatically, allowing human agents to focus on complex issues and relationships. Parloa was founded in 2018 by Malte Kosub and Stefan Ostwald and today employs over 400+ people in Berlin, Munich, and New York. When you join Parloa, you become part of a dynamic and innovative team made up of over 34 nationalities that’s revolutionizing an entire industry. We’re passionate about growing together and creating opportunities for personal and professional development. With our recent $350 million Series D investment, we’re expanding globally and looking for talented individuals to join us on this exciting journey.   ---------------------------------------------------------------------------------------------------------------------------------- Parloa is committed to upholding the highest data protection standards for our clients' and employees' data. All our employees are instrumental in ensuring the utmost care, GDPR, and ISO compliance, including ISO 27001, in handling sensitive information. Parloa is an e-verify employer in the USA. Please click here to learn more. * We provide equal opportunities to all qualified applicants regardless race, gender, sexual orientation, age, religion, national origin, disability status, socioeconomic background and other characteristics.