{"id":2542845,"url":"https://alion.io/job/parloa-principal-software-engineer-real-time-voice-2","title":"Principal Software Engineer - Real-Time Voice","company":{"id":3345,"name":"Parloa","domain":"parloa.com","url":"https://alion.io/company/parloa","size_band":"201-500","is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":"Greenhouse","truth_index":{"grade":"B","score":79,"open_postings":48,"ghost_share":0.271,"stale_share":0,"repost_share":0,"time_to_fill_p50_days":62,"computed_at":"2026-10-19T05:45:15Z"}},"role":"Backend","role_family":"Backend","seniority":"lead","employment_type":null,"work_mode":"on_site","remote_scope":null,"remote_scope_basis":null,"remote_working_hours":null,"hiring_geo_confidence":"structured","locations":["Berlin, Germany"],"countries":["DE"],"hiring_countries":[],"hiring_countries_total":0,"salary":null,"salary_estimate":{"min_usd":94000,"max_usd":186000,"period":"year","method":"role_seniority_country_cell","sample_n":8},"experience_years_min":10,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"AI Agents","optional":false},{"name":"AWS","optional":false},{"name":"Azure","optional":false},{"name":"C++","optional":false},{"name":"GCP","optional":false},{"name":"GDPR","optional":false},{"name":"ISO 27001","optional":false},{"name":"Kubernetes","optional":false},{"name":"Rust","optional":false},{"name":"Speech Recognition","optional":false},{"name":"Text-to-Speech","optional":false},{"name":"WebRTC","optional":false}],"status":"live","first_seen_at":"2026-10-14T15:44:08Z","employer_posted_date":"2026-10-14","last_verified_at":"2026-10-20T00:01:33Z","board_verified":true,"closed_at":null,"days_open":5,"trust":{"level":"ok","repost_count":0,"flags":["company_stale"],"days_open":4},"description":"About Parloa\nParloa’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.\nAbout the role:\nVoice 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.\nThis 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.\nAreas of ownership:\nOwn the architecture and technical roadmap for Parloa's Voice/VoIP infrastructure, including SIP trunking, media handling, and real-time audio pipelines\nDesign for low-latency, high-availability voice at enterprise scale - across global telephony carriers and providers\nDrive technical decisions on protocols and standards (SIP, SDP, RTP/SRTP, RTCP, WebRTC, ICE, STUN/TURN) and real-time media transport\nPartner with AI/ML teams to optimise the integration between voice infrastructure and conversational AI models (ASR, TTS, turn-taking, barge-in)\nDiagnose and resolve deep, systemic issues in call quality, latency, jitter, and packet loss across distributed, multi-region deployments\nDefine and uphold engineering standards for reliability, observability, and security across the voice stack\nMentor senior and staff engineers, acting as a technical multiplier across the organisation\nEvaluate and integrate with telephony providers, carriers, and SIP trunk vendors as Parloa expands into new markets\nRepresent Parloa's technical voice expertise in conversations with enterprise customers and partners where needed\nWho you are:\n10+ years of engineering experience, including 5+ years hands-on building, operating, or debugging production Voice/VoIP, SIP, WebRTC, or carrier-grade voice infrastructure\nStrong knowledge of SIP, SDP, RTP/SRTP, RTCP, WebRTC, ICE, and real-time media transport protocols\nHands-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\nExperience building or operating large-scale, distributed, real-time systems with strict latency and availability requirements\nA track record of owning architecture for complex systems and driving technical decisions with broad organisational impact\nExperience working with telephony carriers, SIP trunk providers, or PSTN integrations at scale\nDeep, hands-on ownership of production SIP-based voice infrastructure at enterprise scale (e.g. Kamailio, FreeSWITCH, Asterisk, pjsip)\nStrong systems programming skills in one or more of Go, C, C++ or Rust, with the ability to work at the media/transport layer.\nComfort operating in cloud environments (AWS, GCP, or Azure) and with container orchestration (Kubernetes)\nExcellent communication skills - able to explain complex technical trade-offs to engineers and non-engineers alike\nA genuine interest in AI and conversational technology, and how voice infrastructure underpins it\nExperience 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\nOur engineering values:\nAt Parloa, we hire, promote, and evaluate based on cultural and technical excellence. You’ll thrive here if you:\nEarn Trust - act with transparency and reliability.\nObsess Over Customers - always start with the customer problem.\nThink Big - set bold goals and pursue them fearlessly.\nHave Integrity - do the right thing, especially when it’s hard.\nDisagree & Commit - debate with candor, align fast, and deliver.\nOwn It - take full responsibility for outcomes, not just tasks.\nDive Deep - master the details without losing sight of the big picture.\nBias for Action - move fast, decide quickly, iterate fearlessly.\nDeliver Value - measure success by customer and business impact.\nInsist on the Highest Standards - raise the bar continuously.\nGo the Extra Mile - make the impossible possible.\nHire & Elevate the Best - raise the bar with every hire\nOur recruiting process:\nRecruiter Call → Technical Peer Interview → 360° Tech Interview Loop → Bar Raiser\nWhy Parloa?\nWe’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.\nAt 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.\nWe’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.\nBacked 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.\n\nParloa 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.\nParloa is an e-verify employer in the USA. Please click here to learn more.\n* We provide equal opportunities to all qualified applicants regardless race, gender, sexual orientation, age, religion, national origin, disability status, socioeconomic background and other characteristics.","description_format":"text","description_chars":7015,"description_truncated":false,"requirements":{"experience_years_min":10,"management_years_min":null,"team_size_min":null,"manages_managers":false,"education":null,"security_clearance":false,"languages":[]},"benefits":[],"hiring_locations":[],"hiring_excludes":[],"relocation_offered":false,"industries":["Conversational AI","Speech & Audio AI","AI Agents","Contact Center Software"],"lifecycle":[{"event":"open","at":"2026-10-14T16:03:05Z"}],"visa":[],"liveness":{"score":90,"band":"hot","label":"Hiring now","p_open":1,"p_active":0.903,"p_room":1,"age_days":4,"expected_fill_days":62,"reasons":["conf:1","velocity","win:early"],"computed_at":"2026-10-19T05:45:15Z"},"pay":null,"html_url":"https://alion.io/job/parloa-principal-software-engineer-real-time-voice-2","json_url":"https://alion.io/job/parloa-principal-software-engineer-real-time-voice-2.json","meta":{"generated_at":"2026-10-20T01:55:56Z","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":2200,"day_limit":null,"remaining_today":null,"minute_limit":300,"resets_at":"2026-10-21T00:00:00Z"}},"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":3345},"rest":"https://alion.io/mcp/rest/get_company?id=3345"},"human":"https://alion.io/catalog?offer=company.slices&for=job%2Fparloa-principal-software-engineer-real-time-voice-2"},{"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%2Fparloa-principal-software-engineer-real-time-voice-2"},{"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%2Fparloa-principal-software-engineer-real-time-voice-2"},{"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/parloa-principal-software-engineer-real-time-voice-2\", \"note\": \"what you need it for\"}"},"human":"https://alion.io/catalog?offer=company.verify&for=job%2Fparloa-principal-software-engineer-real-time-voice-2"}]}