Find a job 
Featured Companies 
Featured Universities 
For Companies At a Glance
- Tasks: Join our remote team as a Fullstack Developer, building innovative blockchain and AI products.
- Company: Chainlabs is a pioneering Web3 start-up focused on blockchain data analytics and security.
- Benefits: Enjoy flexible hours, competitive pay in fiat or crypto, and a dynamic work culture.
- Why this job: Shape impactful products at the intersection of AI and blockchain in a fast-paced environment.
- Qualifications: Proficiency in JavaScript/TypeScript, React.js or Vue.js, and experience with LLMs and APIs required.
- Other info: Part-time role with potential for full-time transition based on performance.
The predicted salary is between 30000 - 42000 £ per year.
Chainlabs is a cutting-edge Web3 data analytics and software start-up specializing in uncovering illicit activities on the blockchain. Our mission is to create actionable intelligence and safeguard the cryptocurrency ecosystem.
We are seeking a versatile and self-driven Fullstack Backend Engineer who thrives in a rapid-prototyping environment to join our fully remote team. You'll play a key role in building two forward-looking products:
- A crypto asset recovery platform to simplify blockchain forensics for everyday users.
- A suite of AI-integrated communication tools, including an AI-powered Slack Company Coach and a WhatsApp-based messaging assistant for landlords and tenants.
This role will initially be part-time, with the potential to transition into a full-time position after a few months based on performance and project needs. We offer competitive compensation, paid in fiat or cryptocurrency.
Requirements:
- Proficiency in JavaScript/TypeScript, with hands-on experience in React.js or Vue.js.
- Backend experience with Node.js + Express, Firebase, or Supabase.
- Experience integrating Slack API and Twilio/WhatsApp Business API.
- Proven ability to work with LLMs (OpenAI, Claude, Mistral, etc.) in production environments.
- Understanding of prompt engineering, context window strategies, and vector memory (e.g., Pinecone, ChromaDB).
- Experience with AI pair programming tools such as Cursor AI, GitHub Copilot, or Cody (non-negotiable).
- Comfortable embedding dashboards using tools like Streamlit, Superset, or Metabase.
- Experience working with PostgreSQL or similar relational databases.
- Knowledge of blockchain data, wallet structures, and APIs like Bitquery, Etherscan, or Covalent.
- Strong grasp of Git, version control, and modern dev workflows.
- Experience with analytics tools such as Hotjar, Google Analytics, or Mixpanel.
Nice to Haves:
- Experience building with chatbot frameworks like LangChain, Dialogflow, or custom GPT tools.
- Familiarity with A/B testing platforms such as Google Optimize or Optimizely.
- Previous work on fintech or crypto products.
- Exposure to frontend/backend deployment tools such as Netlify, Vercel, Heroku, or GCP.
- Comfort working in fast-paced, iterative, early-stage environments with limited structure.
Key Responsibilities:
- Rapidly prototype and iterate on user-facing features and backend infrastructure.
- Build custom integrations with Slack and WhatsApp, enabling AI-assisted communication flows.
- Integrate LLMs into user workflows to provide automated responses and dynamic data retrieval.
- Develop dashboards and internal tools to visualize behaviour across messaging platforms and blockchain data.
- Create blockchain forensic tools with interactive visualizations.
- Manage authentication, access control, analytics, and testing frameworks across all products.
- Ship clean, maintainable code and help us scale from MVP to production with security and performance in mind.
Benefits:
- Flexible, remote-first role with full-time or part-time options.
- Competitive compensation, paid in fiat or cryptocurrency.
- Work directly with a data scientist founder and a fast-moving product team.
- Opportunity to shape the core of AI + blockchain products with real impact.
- Exposure to leading tools and the latest AI development workflows.
- Fast, transparent, and curiosity-driven company culture.
- Potential for long-term or expanded responsibilities based on performance.
Fullstack Developer (Part-time) employer: Chainlabs
Contact Detail:
Chainlabs Recruiting Team
StudySmarter Expert Advice 🤫
We think this is how you could land Fullstack Developer (Part-time)
✨Tip Number 1
Familiarise yourself with the specific technologies mentioned in the job description, such as JavaScript/TypeScript, React.js or Vue.js, and Node.js. Having hands-on experience with these tools will not only boost your confidence but also demonstrate your capability to hit the ground running.
✨Tip Number 2
Showcase your understanding of blockchain technology and its applications. Since Chainlabs focuses on blockchain data analytics, being able to discuss relevant projects or experiences can set you apart from other candidates.
✨Tip Number 3
Prepare to discuss your experience with AI and LLMs in production environments. Given that the role involves integrating AI into user workflows, having concrete examples ready will highlight your expertise and readiness for the position.
✨Tip Number 4
Network with current or former employees of Chainlabs or similar companies. Engaging with them can provide valuable insights into the company culture and expectations, which can be beneficial during interviews.
We think you need these skills to ace Fullstack Developer (Part-time)
Some tips for your application 🫡
Tailor Your CV: Make sure your CV highlights your proficiency in JavaScript/TypeScript, React.js or Vue.js, and any relevant backend experience. Emphasise your familiarity with blockchain data and APIs, as well as your experience with LLMs and AI tools.
Craft a Compelling Cover Letter: In your cover letter, express your enthusiasm for the role and the company’s mission. Mention specific projects or experiences that align with the responsibilities outlined in the job description, particularly your ability to work in fast-paced environments.
Showcase Relevant Projects: If you have worked on projects involving blockchain technology, AI integrations, or analytics tools, be sure to include these in your application. Provide links to your GitHub or portfolio to demonstrate your coding skills and project outcomes.
Highlight Soft Skills: Since the role requires working in a remote team, emphasise your communication skills and ability to collaborate effectively. Mention any experience you have with rapid prototyping and iterative development processes.
How to prepare for a job interview at Chainlabs
✨Showcase Your Technical Skills
Make sure to highlight your proficiency in JavaScript/TypeScript, React.js or Vue.js, and Node.js during the interview. Be prepared to discuss specific projects where you've used these technologies, especially any that involved integrating APIs like Slack or WhatsApp.
✨Demonstrate Your Problem-Solving Abilities
Chainlabs values rapid prototyping and iteration. Prepare examples of how you've tackled complex problems in previous roles, particularly in fast-paced environments. Discuss your approach to building user-facing features and backend infrastructure.
✨Familiarise Yourself with Blockchain Concepts
Since Chainlabs operates in the blockchain space, having a solid understanding of blockchain data, wallet structures, and relevant APIs is crucial. Brush up on these topics and be ready to discuss how they relate to the role you're applying for.
✨Prepare Questions About Company Culture
Chainlabs promotes a fast, transparent, and curiosity-driven culture. Prepare thoughtful questions about their work environment and team dynamics. This shows your interest in not just the role, but also in fitting into their company culture.
