Sleek is seeking a Principal Full Stack Engineer to design and deliver AI-native systems that combine traditional software architecture with modern AI capabilities. The role involves building AI-powered workflows, designing scalable services, and introducing patterns for building reliable AI-enabled systems. The successful candidate will participate in a multi-stage interview process, including screening, take-home assessment, case study interview, and soft skills/behavioral fit interview.
Requirements
- 8+ years of full stack engineering experience delivering complex software systems.
- Experience building production-grade SaaS platforms in B2B, fintech, or similar environments.
- Proven experience building AI-powered product capabilities, such as LLM-powered workflows, document processing systems, classification or extraction pipelines, intelligent automation systems.
- Strong familiarity with modern AI development techniques, including prompt engineering, embeddings and vector search, retrieval-augmented generation (RAG), evaluation and monitoring of AI systems.
- Advanced proficiency with AI-assisted development tools such as Cursor, including codebase-aware development workflows, AI-assisted debugging and refactoring, AI-generated testing and documentation.
- Strong proficiency with JavaScript and TypeScript.
- Strong backend experience with Node.js (NestJS a plus).
- Strong frontend experience with React or Vue.
- Experience designing scalable APIs and distributed services.
- Strong experience with relational databases (Postgres/MySQL) and NoSQL systems (MongoDB).
- Experience with cloud infrastructure and DevOps practices (AWS preferred).
- Strong communication skills and experience collaborating with product and design teams.
- A track record of mentoring engineers and improving engineering standards across teams.
Benefits
- Humility and kindness: Humility is a core attribute we hire for, which means we have a culture of not taking ourselves too seriously and being able to laugh. Kindness is also incredibly important. We are committed to creating and nurturing a diverse and inclusive environment.
- Flexibility: You will be required to work from the office at least 2–3 days per week if you are based in Singapore or Australia. For all other hiring locations, the role will be fully remote, with work from home five days a week.
- Financial benefits: We pay competitive market salaries and provide staff with generous paid time off and holiday schedules. Additionally, you’ll be able to access our flexi benefits scheme for home office equipment or health and fitness expenditure.
- Personal growth: You’ll get a lot of responsibility and autonomy at Sleek - we move at a fast pace so you’ll be making decisions, making mistakes and learning.
