Working hours: 08h30 – 12h & 13h – 17h30, Mon – Fri
Expected starting date: As soon as possible (Asap)
I. Key responsibilities
The Senior Full-Stack Product Engineer is responsible for owning the architecture, development, and scaling of the next-generation digital products. This role’s mission is to combine backend engineering, API integration, and frontend development to deliver secure, performant, and user-centric web applications that integrate seamlessly with Sleek’s CRM and analytics systems.
You’ll work closely with product, design, and growth teams to take products from prototype → launch → global scale, ensuring:
• High engineering quality
• Full security and compliance
• Strong data integrity
• Smooth user experience
II. Requirements
- 6–8 years overall, with 2+ years building production B2B SaaS or FinTech products
- Backend: Node.js / Nest.js
- Frontend: React / Next.js
- APIs: REST, OAuth 2.0, JSON schemas, Postman
- DevOps: AWS, Docker, CI/CD pipelines
- Security: GDPR
- Database: PostgreSQL
- Proven record of delivering live, production-grade systems independently or as lead developer
- Experience taking prototypes to production (Replit to AWS/Vercel)
- Experience in working in a fast paced environment of a startup
- Strong grasp of scalable architecture and complex API integrations
- Confident in making technical decisions in fast-paced environments
- Bonus: experience with accounting, tax, or FinTech APIs
- Proficient in English, both verbal and written
III. Benefit
- Working remotely 100%
- Salary upto $1600
- Support from PM and teammates
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