Senior
Development
Remote/Hybrid
23 days ago

Senior Full-stack Developer

We are looking for a Senior Full-Stack Engineer with deep expertise in software development (TypeScript/JavaScript) and proven experience in building scalable web applications. You will play a key role in architecting and delivering end-to-end solutions using Next.js and Supabase on the frontend and backend, while driving excellence in API design, data modeling, and performance optimization. This role requires a strong backend mindset with hands-on experience in building multiple APIs, rule engines, and ideally exposure to the finance domain (e.g., credit limits, transaction systems). You will collaborate closely with product managers, designers, and other engineers to ship reliable, secure, and high-performing features.

Responsibilities

The Senior Frontend Developer will be responsible for the following:

  • Develop scalable frontend and backend features using Next.js (App Router, Server Actions, or API routes).
  • Implement and manage the Supabase database for data storage (e.g., rules, outcomes, test cases) and authentication where required.
  • Integrate and configure JSON-rules-engine to evaluate and execute business logic.
  • Build clean, responsive, and reusable UI components using Tailwind CSS and Shadcn/UI.
  • Implement form handling and validation with React Hook Form (or similar libraries).
  • Ensure secure, maintainable, and efficient code following best practices.
  • Deploy and maintain the application on Vercel.
  • Collaborate with the team to deliver high-quality features on time.

Requirements

The Senior Full-stack Developer will report directly to the Line Manager and will possess the following attributes:

Technical Skills:

  • Strong proficiency in Next.js (App Router, Server Actions, API routes).
  • Good experience with Supabase (database design, authentication, data queries)
  • Solid hands-on experience with Node.js & Express, including API development
  • Strong understanding of TypeScript/JavaScript.
  • Good knowledge of rule engines (preferably json-rules-engine) or similar logical evaluation tools.
  • Proficiency in React, Tailwind CSS, and Shadcn/UI for UI/UX implementation.
  • Familiarity with React Hook Form or similar form-handling libraries.
  • Experience deploying and optimizing applications on Vercel or equivalent platforms.
  • Strong understanding of full-stack development principles and web security best practices.
  • Ability to work independently and deliver results in a fast-paced environment.
  • Willingness to complete a technical assessment as part of the hiring process

 

Benefits & Perks

  • An open mind and flat structure where every voice is welcome.
  • A work environment built on transparency, seamless communication, trust, and a sensible approach ,combined with mixed cultures and a speaking environment
  • Individual assessments every 6 weeks with your line manager
  • Performance review every  6 months
  • 15 days of annual leave and + 6 days of fully paid sick leave per year – can be used for the care of sick child
  • Christmas Holiday
  • Competitive salary
  • Bonus: 13th-month Salary
  • Social insurance for employees who pass their probation

Learn more about Xenia Tech

If you have any questions, please feel free to get in touch with our HR department at [email protected].

Learn more about our culture and special benefits package here.

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