Senior Backend Engineer

Get AI-powered advice on this job and more exclusive features.This range is provided by Oscar. Your actual pay will be based on your skills and experience — talk with your recruiter to learn more.Base pay range$120,000.00/yr - $180,000.00/yrJob Title: Senior Backend Engineer - Python / AI / LLMsLocation: Remote (U.S. preferred)Employment Type: Full-timeSalary: $120,000 - $180,000 + equityBenefits: Competitive healthcare, flexible PTO, remote-first culture, home office stipend, wellness allowance, learning & development budgetAbout UsJob Title: Senior Backend Engineer - Python / AI / LLMsLocation: Remote (U.S. preferred)Employment Type: Full-timeSalary: $120,000 - $180,000 + equityBenefits: Competitive healthcare, flexible PTO, remote-first culture, home office stipend, wellness allowance, learning & development budgetAbout UsWe're a fast-moving startup on a mission to build AI-powered tools that make complex work simple, faster, and more intelligent. We leverage cutting-edge large language models (LLMs) to solve real problems across industries. Our team is small, senior, and passionate about what we build-every line of code makes a visible impact.We're looking for a Senior Backend Engineer to join us in scaling the backend infrastructure that powers our AI systems.What You'll DoDesign, build, and maintain backend services and APIs using Python (FastAPI, Flask, or Django)Integrate and serve LLMs (e.g., OpenAI, Anthropic, Hugging Face, or open-source models) in productionCollaborate with ML engineers and product teams to deliver intelligent, scalable featuresBuild and optimize data pipelines for inference, prompt processing, and model fine-tuningArchitect systems that balance performance, security, and maintainabilityOwn projects end-to-end-from architecture and implementation to testing and monitoringWhat We're Looking For5+ years of backend software development experienceStrong proficiency with Python and cloud infrastructure (AWS, GCP, or similar)Experience deploying and working with LLMs in real-world productsDeep understanding of RESTful APIs, asynchronous programming, and containerized services (Docker, Kubernetes)Familiarity with data pipeline tools and task queues (Airflow, Celery, etc.)Product mindset-you think beyond code and care about usability, performance, and impactBonus Skills (Not Required but Nice to Have)Experience with FastAPIFamiliarity with vector databases (Pinecone, Weaviate, FAISS)Prompt engineering or fine-tuning experience with LLMsBackground in NLP, search, or applied MLExperience building dev tools, SaaS, or productivity platformsWhy You'll Love Working Here Competitive salary ($120K-$180K) + meaningful equity Fully remote, flexible work environment Comprehensive health, dental, and vision insurance Wellness, L&D, and home office stipends Work on cutting-edge AI systems that ship to real users Smart, low-ego team that values impact over bureaucracyOscar Associates Limited (US) is acting as an Employment Agency in relation to this vacancy.Seniority levelSeniority levelMid-Senior levelEmployment typeEmployment typeFull-timeJob functionIndustriesBankingReferrals increase your chances of interviewing at Oscar by 2xGet notified about new Back End Developer jobs in Austin, TXAustin, TX $120,000.00-$140,000.00 6 days agoAustin, TX $90,000.00-$170,000.00 2 months agoAustin, Texas Metropolitan Area 5 days agoInternship, Backend Engineer, Design Technology (Fall 2025)Senior Software Engineer, Backend - FintechFull Stack Java Developer, Messaging PlatformsFull Stack Java Developer, Trade Management SystemsAustin, TX $150,000.00-$175,000.00 2 weeks agoAustin, TX $80,000.00-$145,000.00 1 week agoTravis County, TX $80,000.00-$145,000.00 1 week agoWe're unlocking community knowledge in a new way. Experts add insights directly into each article, started with the help of AI.J-18808-Ljbffr Oscar