For our client, a fast-growing AI product company, we are looking for a Senior Backend & AI Engineer (Python) to help build and develop core architecture from scratch and contribute to the development of an innovative AI-driven platform.
What You'll Do:
- Design and implement scalable, secure, and efficient back-end services primarily in Python.
- Architect and develop advanced AI agents and stateful LLM conversational flows, managing short-term session context and long-term memory extraction.
- Build logic to evaluate user interactions and implement structured data pipelines to save, transcribe, and serve real-time session histories and system analytics.
- Own technical decisions for backend architecture, APIs, and microservices design.
- Explore and evaluate new tools, frameworks, and infrastructure to improve the product and infrastructure stack.
- Collaborate closely with product managers, designers, and front-end engineers to deliver impactful features.
- Proactively identify technical issues, lead research initiatives, and resolve complex architectural bottlenecks.
- Help establish engineering best practices, code quality standards, and technical documentation as the company scales.
- 5+ years of experience in back-end development with Python.
- Proven hands-on experience building AI agents, orchestrating complex LLM workflows, and deploying RAG pipelines.
- Experience with advanced AI orchestration and memory management frameworks (e.g. LangGraph, LangMem).
- Experience with vector search engines (such as Qdrant) for high-performance data retrieval and artefact management.
- Experience with latency optimisation for LLM streaming and database queries.
- Strong ownership mindset with the ability to independently research, solve problems, and unblock yourself autonomously.
- Strong knowledge of PostgreSQL and experience working with ORMs.
- Experience in early-stage startups or building systems from scratch in a fast-paced environment.
- Proactive and highly autonomous, while maintaining structured workflows and respecting team processes.
- Result-oriented, hard-working, and ambitious.
- Upper-Intermediate or higher English proficiency.
- Experience with TypeScript, NestJS, or React, and willingness to contribute across the stack when needed.
- Knowledge of CI/CD pipelines and containerization with Docker.
- Experience with message brokers (e.g. NATS) for microservices communication.
- Experience in performance optimisation and working with high-load or data-intensive systems.
- Experience in subscription-based or B2B/B2C SaaS products.
- Competitive market compensation.
- 20 paid vacation days per year.
- Full-time remote work with flexible working hours.
- Fast-paced, product-driven environment with real ownership and autonomy.
- Opportunity to shape architecture and technology decisions from an early stage.
- Close collaboration with a strong product, design, and growth team.
- Transparent culture with minimal bureaucracy and quick decision-making.
- Smart and ambitious teammates who value impact over process.
- Work type
- Full-time
- Location
- Remote