Middle Node.js Engineer

Kindgeek is looking for a Middle Node.js Engineer who will focus on building AI-powered solutions on Node.js, integrating and expanding functionality with Zapier and similar automation platforms.

You will work closely with our AI and automation teams to create, optimize, and scale intelligent workflows and solutions for our clients, relying on modern LLM technologies.

Requirements

We're looking for Middle Node js Engineer who has:

• 3+ years of hands-on experience with Node js;
• Solid knowledge of Zapier (or similar platforms);
• Experience working with Python (basic for LLM manipulation is a plus);
• Understanding of machine learning algorithms, model fine-tuning, prompt engineering;
• Skilled in data preprocessing and feature engineering;
• Experience with REST APIs and Webhooks;
• Upper-Intermediate English or higher — ability to clearly communicate ideas and document your work.
• Strong analytical and problem-solving skills.
• Alignment with Kindgeek values: trust, transparency, social responsibility, and an eye for aesthetic qualit
  
  

Nice to have

• Experience with AI/LLM projects;
• Familiarity with NoSQL databases (e.g., MongoDB, Firebase);
• Hands-on experience with OpenAI APIs, LangChain,, or similar;
• Familiarity with building Chrome extensions or browser automation;
• Experience with serverless architectures (AWS Lambda, Google Cloud Functions).
  
  

Responsibilities

As a Middle Node js Engineer you will:

• Design and develop AI-driven automation workflows based on Zapier and custom Node.js scripts;
• Build scalable Node.js services and integrations with third-party APIs;
• Work with AI models (LLMs) for enhancing automations and custom use-cases;
• Implement data preprocessing pipelines and support feature engineering;
• Collaborate with data scientists and engineers to deploy machine learning algorithms into production;
• Continuously improve the efficiency, accuracy, and scalability of existing automation;
• Document your technical solutions clearly and concisely.
  
  

About Project

WHAT WILL YOU GET WITH KINDGEEK

We want you to thrive and feel supported

• Professional growth: at Kindgeek, we want our employees to grow and achieve ambitious professional goals. We support professional development with training and certification refunds and provide regular feedback and technical reviews.
• Benefits package: Kindgeek offers all team members competitive compensation and a benefits package that includes 18 working days of fully paid vacation, 10 compensated by 50% sick leaves without a note from the doctor, and an opportunity to take study leaves. Depending on how long you stay in the company, you can receive different health insurance packages from our partners.
• Personal growth: as a part of our team, you will have access to corporate English courses with a 50% reimbursement, take advantage of our offline library and access a large selection of corporate training and classes. Also, every employee can request any internal or external training or certification if it applies to his or her work responsibilities.
• Geek community: at Kindgeek, we value community – even in the full-scale invasion times, we take every opportunity to stick together. Our geeks organise various online and offline clubs – from stretching and skiing to English. We volunteer together and support each other.
• Flexibility: Kindgeek offers a hybrid working model. Team members can work remotely or from the office or Kindgeek London Hub – an innovative cafe-style co-working in Lviv (it's pet-friendly!).
  
  

We encourage you to apply

At Kindgeek, we encourage everyone to apply – regardless of nationality, race, gender, marital status, disability, sexual identity, or religion. We are growing into an inclusive, equal-opportunity company where only professionalism, competence, and ideas matter. We are committed to supporting mobilised employees and veterans joining Kindgeek and facilitating their career development. We aim to bring equal opportunities to all team members and candidates – especially those underrepresented in technological companies