Senior Software Engineer

Senior Software Engineer (Backend) Join to apply for the Senior Software Engineer (Backend) role at Axiomatic_AI Get AI‑powered advice on this job and more exclusive features. About Us Axiomatic_AI is dedicated to accelerating R&D by developing the next generation of Automated Interpretable Reasoning, a verifiably truthful AI model built for reasoning in science and engineering. We empower engineers in hardware design and Electronic Design Automation (EDA) and aim to revolutionize hardware design and simulation in the photonics and semiconductor industry. We seek highly motivated professionals to help us bring these innovations to life, driving the evolution from development to commercial product. About The Job As a Senior Software Engineer (Backend) at Axiomatic, you will: Design and build scalable backend services (FastAPI, FastMCP, Python) Own key features end‑to‑end: from API design to database schema to deployment Integrate AI capabilities (LLMs, Agents) into production systems Collaborate with frontend, AI, and infrastructure teams on architecture and delivery Ensure system reliability, performance, and security Mentor other engineers as the team grows Key Responsibilities Architecture & Design Contribute to system architecture and technical decisions Design for scalability, reliability, and security Propose and implement improvements to codebase and infrastructure Document technical designs and API contracts Ensure best practices are followed by the team Backend Development Design and implement REST APIs using FastAPI Build scalable, maintainable, and testable services Design database schemas and optimize SQL queries (PostgreSQL) Integrate with external services (OpenAI, Anthropic) Optimize API performance, latency, and throughput Quality & Testing Write comprehensive unit and integration tests Participate in code reviews (give and receive feedback) Debug and resolve production issues Maintain high code quality standards Collaboration & Mentorship Work closely with Tech Lead on architecture and roadmap Partner with AI Platform Engineer on AI integrations Mentor mid‑level engineers and share knowledge Required Skills & Experience 7+ years of backend development experience Deep knowledge in Python, FastAPI Strong database skills: PostgreSQL, SQL, ORMs (SQLAlchemy) Experience designing REST APIs: best practices, versioning, documentation Cloud platform experience: GCP preferred (AWS, Azure acceptable) Testing mindset: unit tests, integration tests, TDD Version control & CI/CD: Git, GitHub Actions, Docker Strong problem‑solving skills: debugging, performance optimization Fluent in English (Spanish is a plus) Nice‑to‑Have Experience with FastMCP Familiarity with LangChain, Pydantic AI or similar frameworks Knowledge of async programming (asyncio, async/await) Familiarity with AI/ML APIs (OpenAI, HuggingFace, Vertex AI) Understanding of infrastructure as code (Terraform) Experience with microservices architecture Tech Stack Backend: Python, FastAPI, SQLAlchemy, Pydantic AI, Alembic Databases: PostgreSQL, Redis (caching) APIs: REST, WebSockets, SSE AI/ML: OpenAI API, Anthropic, Gemini Cloud: Google Cloud Platform (Cloud Run, Cloud SQL, GCS, VPCs, Bucket) Infrastructure: Terraform, Docker CI/CD: GitHub Actions, Terraform Testing: pytest, pytest‑asyncio, pytest‑cov What We Offer Competitive compensation Stock Options Plan: share in our success and growth Cutting‑Edge Tools: access to state‑of‑the‑art tools and collaboration with leading AI, physics, hardware, and EDA experts Work‑Life Balance: flexible work arrangements with potential remote options Professional Growth: opportunities to attend industry conferences, present research, and engage with the global AI research community Impact‑Driven Culture: join a passionate team focused on solving challenging problems at the intersection of AI and hardware Why Join Us? At Axiomatic_AI, you will work on technology that drives innovation in AI for scientific and engineering applications aligned with our 10X30 mission. This is your opportunity to contribute to the development of new AI architectures that can reason coherently, produce interpretable and verifiable solutions, and see those ideas commercialized into products that shape the future of hardware and computing. We believe in pushing the boundaries of what is possible and continuously seek to redefine the intersection of AI, with a focus on formal consistency. If you’re ready to take your expertise in artificial intelligence and physics to the next level, we want to hear from you Worried about not meeting every qualification? Studies show that women and people of color are less likely to apply for jobs unless they meet every listed requirement. At Axiomatic_AI, we are dedicated to creating a diverse, inclusive, and authentic workplace. If this role excites you but your background doesn’t perfectly match every qualification, we still encourage you to apply. You could be the perfect fit for this position or another opportunity with us. #J-18808-Ljbffr