Code and Theory is a digital-first creative agency that sits at the center of creativity and technology.

Senior Engineer, Back-end

Backend EngineerSoftware EngineerFull TimeRemoteTeam 1,001-5,000Since 2011H1B SponsorCompany Site LinkedIn

Location

New York

Posted

40 days ago

Salary

$120K - $150K / year

Bachelor Degree4 yrs expEnglishAngularCypressDjangoDockerFlaskGraph QLJava ScriptJestKubernetesPostgresPythonReactType ScriptVue.js

Job Description

• Lead the technical direction of projects, making high-level architectural decisions for full-stack applications that integrate AI services • Design and build robust backend services (Python) and intuitive, interactive frontend interfaces (React/Vue/Angular) that visualize complex data and AI interactions • Architect and maintain data processing pipelines, agentic workflows, and LLM integrations to solve real-world client problems • Foster a culture of excellence by performing rigorous code reviews, mentoring junior and senior developers, and driving the adoption of best practices • Partner closely with Product Management, Design, and QA to translate complex requirements into technical roadmaps and deliverable software • Evaluate system performance across the full stack, identifying bottlenecks in both the frontend rendering and backend AI inference layers to ensure scalability and reliability • Stay ahead of the curve on the latest AI trends (e.g., SLMs, Agentic AI, Multimodal models) and web technologies, advising stakeholders on feasibility and implementation

Job Requirements

4+ years of total software development experience
Expert proficiency in Python for backend development (FastAPI, Flask, or Django) and data processing
Strong experience with modern JavaScript/TypeScript frameworks (React, Vue, or Angular) and state management
Proven experience building applications on top of LLMs (OpenAI, Anthropic, OSS models), implementing RAG patterns, and using frameworks like LangChain or LlamaIndex
Deep experience designing and consuming RESTful APIs, GraphQL, and WebSockets
Mastery of Git, CI/CD pipelines, containerization (Docker/Kubernetes), and automated testing frameworks (Pytest, Jest, Cypress)
Experience with both relational databases (PostgreSQL) and Vector databases (Pinecone, Milvus, Weaviate, or pgvector)
Strong communication skills with the ability to explain complex technical concepts to non-technical stakeholders.