Senior Backend Engineer (AI Chatbot)

TL;DR

Senior Backend Engineer (AI Chatbot): Building and enhancing features for an AI Chatbot for a UK-based digital bank with an accent on system architecture, end-to-end functionality, and code quality. Focus on leading development of backend features with TypeScript and AWS Lambda, championing test-driven development, and contributing to AI development initiatives, including light prompt-engineering tasks and integration with LLMs.

Location: Remote from Bulgaria, Poland, or from offices in Belgrade, Cluj-Napoca, Krakow, Lodz, Lublin, Riga, Sofia, Varna, Warsaw, Wroclaw. Working schedule aligned with the UK time zone (9am to 5:30pm UK time) and may involve on-call shifts.

Company

Our client, a UK-based digital bank, delivers innovative and accessible financial solutions for today's consumers.

What you will do

• Lead the development and delivery of backend features using TypeScript and AWS Lambda functions.
• Champion test-driven development practices and maintain exceptional code quality.
• Contribute to AI development initiatives, including light prompt-engineering tasks and integration with LLMs.
• Provide technical guidance to other engineers and play an active role in architectural and technical decision-making.

Requirements

• Strong, proven experience with backend development in TypeScript.
• Solid understanding of serverless concepts; hands-on experience with AWS Lambda is a strong plus.
• Demonstrated application of test-driven development principles.
• Ability to lead projects, influence technical direction, and make sound architectural decisions.
• Working schedule aligned with the UK time zone (9am to 5:30pm UK time).

Culture & Benefits

• Vacation as per the laws of your country.
• Health insurance support for you and your loved ones.
• 10 days sick pay without a doctor's note.
• Time off for state holidays.
• Two large corporate parties and many small get-togethers for colleagues.
• Comfort service for technical and everyday problems at work.
• Support for IT certifications and access to top-tier courses and learning platforms.