Job Title

What We're BuildingPlotWeaver is building the language and voice infrastructure for global storytelling.We create AI for dubbing, subtitling, and localisation, starting with African languages and scaling globally. Our goal is to make stories move across cultures without losing meaning, emotion, or identity.This is not a feature. This is infrastructure.The RoleWe are looking for a Speech & Language AI Engineer to join PlotWeaver as a founding team member.You will own the intelligence layer of the platform, how the system listens, understands, translates, and speaks.This is a deep technical role with real ownership. You are not tuning a model. You are building a system.What You Will DoTrain and fine-tune TTS models for African and multilingual speechBuild speaker adaptation and voice cloning pipelinesImprove naturalness, accent fidelity and pronunciationAdapt ASR models for African accents and low-resource languagesBuild diarisation, alignment and subtitle segmentationBuild and improve translation and localisation pipelinesHandle slang, idioms and cultural variationDefine quality metrics and evaluation pipelineWhat We're Looking ForStrong experience in speech, NLP or applied MLComfort working across ASR, TTS and translationExperience with low-resource or multilingual models is a plusBuilder mindset and comfort with ambiguityCurrently on a PhD programme, hold a PhD or have equivalent research experience in ASR, TTS, MT or a closely related fieldTech We Care About:PyTorch or TensorFlowVITS, XTTS, Bark, FastSpeech, Glow-TTSWhisper, NeMo, wav2vec2Marian, NLLB, mBART, OpenNMTAlignment, phonetics, tokenisation, segmentationWhy PlotWeaverPlotWeaver is building digital public infrastructure for African languages.We work with leading universities and linguistics experts across Africa, South America, the US, and Canada to build the largest high-quality African speech and text datasets ever created.Our research is designed for production and for contribution to the field, with work presented at ACL, NeurIPS and EMNLP.We have a formal MoU with the Nigerian Film Corporation for nationwide rollout of AI-assisted filmmaking tools. We are members of NVIDIA Inception and already working with creators, studios and institutions.What We OfferEquity:Founder-level equityVesting: 4-year vesting with 1-year cliffSalary: Post-fundraisingDirect ownership of architecture, culture and direction