Principal Full Stack Engineer (AI Systems)

Sleek is seeking a Principal Full Stack Engineer to play a pivotal role in architecting and building AI-powered platform and automation capabilities. The successful candidate will design and deliver AI-native systems that combine traditional software architecture with modern AI capabilities.

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
• Strong familiarity with modern AI development techniques
• Strong proficiency with JavaScript and TypeScript
• Strong backend experience with Node.js
• Strong frontend experience with React or Vue
• Experience designing scalable APIs and distributed services
• Strong experience with relational databases and NoSQL systems
• Experience with cloud infrastructure and DevOps practices
• Strong communication skills and experience collaborating with product and design teams
• A track record of mentoring engineers and improving engineering standards across teams

Benefits

• Competitive market salaries
• Generous paid time off
• Holiday schedules
• Flexi benefits scheme for home office equipment or health and fitness expenditure
• Employee share ownership plan