--- title: 'Senior Full Stack Engineer at Symmetry AI' canonical: 'https://feeny.ai/job/senior-full-stack-engineer-symmetry-ai-seattle-dfnhy7hwrnqr' type: 'job' last_seen: '2026-09-09' --- # Senior Full Stack Engineer at Symmetry AI - **Company:** Symmetry AI - **Location:** Seattle, WA - **Employment:** full-time - **Work type:** onsite - **Posted:** 2025-10-29 - **Last confirmed live:** 2026-09-09 - **Apply:** https://jobs.ashbyhq.com/symmetry/f3fe4784-528a-4bb7-bd63-5a251de3ecba ## Job description ## ABOUT SYMMETRY We’re solving one of the biggest challenges in modern AI workflows: fragmented context. Today, project knowledge is scattered across conversations, tools, and docs—forcing teams to spend more time steering AI than actually getting work done. Symmetry brings context, continuity, and observability to AI-powered work, enabling teams to ship faster, work smarter, and maximize productivity across their existing AI stack. We’re a fast-moving, early-stage team with a proven track record of building and scaling successful AI businesses. Freshly funded and growing, we’re looking for builders who want to help define the next frontier of human–AI collaboration. ## ROLE SUMMARY You’ll own the systems powering Symmetry’s platform and Intelligence Layer—designing APIs, architecting data systems, and operating production services that are fast, fault-tolerant, and secure. You’ll work closely with product, design, and research to turn complex ideas into scalable, elegant systems that make AI workflows seamless and trustworthy. ## WHAT YOU’LL DO - Design, Build, & Maintain APIs: Build reliable, versioned interfaces that power Symmetry’s product and external integrations. - Architect Data Systems: Design and optimize relational, vector, and graph-based data stores that represent interconnected project context. - Build Distributed Services: Develop and scale backend systems using modern Python frameworks and asynchronous processing patterns. - Integrate AI Workflows: Combine retrieval and generation pipelines to deliver context-rich, adaptive intelligence within the platform. - Ensure Reliability & Security: Design for fault tolerance, enforce access control, manage secrets securely, and maintain compliance with data protection standards. - Operate in Production: Deploy, monitor, and optimize services with meaningful metrics, alerts, and incident response practices. - Debug & Optimize: Trace issues end-to-end, fix root causes, and continuously improve system performance and resilience. - Collaborate Cross-Functionally: Partner with frontend, design, and research to deliver reliable, user-centered experiences. - Own the Outcome: Document systems, write tests, and iterate post-launch using real-world feedback. ## SKILLS WE’RE LOOKING FOR - 5+ years building and operating backend or full-stack systems in production environments. - Strong Python fundamentals and experience with modern web frameworks. - Deep understanding of data modeling and SQL with hands-on experience in relational databases. - Experience designing distributed and asynchronous systems for scale and reliability. - Understanding of vector or graph data models and their role in search, retrieval, or knowledge systems. - Solid foundation in cloud-native operations — containerization, orchestration, monitoring, and scaling. - Track record of owning systems end-to-end — from design to post-launch operation. - Awareness of security best practices and compliance principles. - Strong debugging, observability, and incident-management skills. - Clear, proactive communicator comfortable working with product and research partners. If you thrive on autonomy, clarity, and collaboration and want to build the connective tissue between humans and AI systems, Symmetry is where you’ll do your best work. ## About Symmetry AI ## Core Business - **Primary Industry**: Technology, Information and Internet – AI-powered productivity and automation - **Target Customers**: B2B – knowledge workers, teams, and enterprises using multiple AI tools (ChatGPT, Claude, Perplexity, Cursor, Gemini, etc.) - **Mission / Purpose**: To redefine how humans and AI collaborate by providing a connected, context-aware system that makes AI genuinely useful across every tool. ## Products & Services - **[Symmetry AI Platform](https://www.getsymmetry.com)**: An AI-native productivity platform that captures prompts and responses from various AI tools, maps them into a project knowledge graph, injects relevant context into new prompts, and executes agentic workflows. Offered as a SaaS service (currently in beta). ## Market Standing - **Valuation / Market Cap**: Not disclosed - **Key Metric**: Total funding not publicly available; headcount is 2 employees as of mid-2026 (LinkedIn data) with +25% monthly growth in workforce. - **Notable Investors / Partners**: Not disclosed; uses AI service providers including OpenAI, Anthropic, Amazon Bedrock, Google Cloud AI, Hugging Face, Microsoft Azure AI, and xAI. - **Growth Signals**: Early-stage startup with active hiring (3 open roles as of July 2026); LinkedIn followers growing (+1.2% monthly); product in beta with 33 monthly website visits (likely early traction). ## Competitive Advantages - **Unified Context Layer**: Captures and connects fragmented AI conversations across multiple tools into a single knowledge graph, enabling continuity and deeper project understanding. - **Privacy-First Design**: Customer data (prompts, outputs, project activity) is not used to train models for other users or shared training pipelines – a differentiator for enterprise adoption. - **Agentic Workflows**: Can execute multi-step tasks autonomously with full context, going beyond simple prompt injection. - **Experienced Founding Team**: Repeat founders and engineers who have previously built and scaled AI businesses. ## Strategic Focus - **Product Development**: Building the "context OS" for AI-native work, focusing on deep knowledge representation, cross-tool integration, and autonomous task execution. - **Hiring**: Currently recruiting an Applied AI Engineer (Seattle, on-site) and two Senior Full Stack Engineers (one Seattle on-site, one India remote). High ownership and early impact are emphasized. - **Go-to-Market**: Still in beta; likely targeting power users and early adopter teams before broader enterprise rollout. ## Why Work Here - **Early Team, High Ownership**: Join a small founding team (currently 2 employees) and take ownership of critical systems from day one. - **Hard Problems**: Work on foundational challenges in knowledge representation, context management, and AI reasoning. - **Experienced Peers**: Collaborate with repeat founders and engineers who have scaled AI businesses before. - **Culture**: On-site in Seattle HQ for most roles; remote option for India-based position. Focus on speed, clarity, and defining the next era of AI-powered work. - **Perks**: Not explicitly listed, but the company emphasizes meaningful problem-solving and the chance to shape the product’s direction. ## Sources 1. [Symmetry AI Careers Page](https://www.getsymmetry.com/careers) 2. [Symmetry AI LinkedIn](https://www.linkedin.com/company/symmetry-os) 3. [Symmetry AI Job Postings (Ashby)](https://jobs.ashbyhq.com/Symmetry) 4. [Symmetry AI Privacy Policy](https://www.getsymmetry.com/legal/privacy-policy) 5. 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