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Tech Lead (Java/Kotlin) API Team

Develop backend services which index state from the blockchain and other sources into internal databases

type of job


updated at

a month ago

job details

Role Overview

Interested in building Web 3 with us? The next few years in crypto, NFTs, and Web3 belong to builders and believers — not short-term speculators. At Rarible, we believe that Web 3 will spread only when teams create excellent infrastructure, fill gaps, and provide solutions that benefit communities and create a better internet for everyone. If this resonates with you, we'd love to have you on board!

Here’s why: We are looking for a Tech Lead (Java/Kotlin) API Team

Rarible API Protocol is a set of tools for web3 developers to build rich NFT applications. It allows to trade NFTs safely, get consistent and full data about NFTs. You will develop backend services which index state from the blockchain and other sources into internal databases. One of the key challenges is to make the data consistent and reliable. You have experience and are culturally aligned with fast-moving small teams. You have worked at remote (globally distributed) startups before. You are self-driven, are comfortable wearing many hats, can ship patches and features swiftly when needed. You can identify company priorities, own them, and iterate quickly to ship the best solution.


  • Design and code the core Protocol service components
  • Develop automated tests to ensure business needs are met, and allow for regression testing
  • Manage and optimize the current systems
  • Monitor and troubleshoot
  • Promote best technology and software development practices
  • Conduct code reviews
  • Architect API


  • Understanding Microservices architecture
  • Knowledge of Kotlin (Java) as a basis for building microservices
  • Experience with Mongodb, Kafka
  • Experience with building robust, scaleable, customer-facing API

Why should you join

At Rarible, we are committed to building a better internet for everyone, and we believe that Web 3.0 is the key to achieving this goal. We believe that the next generation of the internet should be decentralized, transparent, and accessible to everyone. This means that users should have full ownership of their data and be able to control how it is used. Our team at Rarible is comprised of experts in cutting-edge technologies, and we are constantly expanding our knowledge and skills to stay ahead of the curve. We are committed to creating a culture of learning and growth, where our team members can explore new ideas and take on new challenges. We believe that diversity is a strength, and we welcome team members from all backgrounds and walks of life


  • Full-time role with a hybrid Hub policy in sunny Lisbon, Portugal
  • Relocation packages available
  • Unlimited paid days off policy to own your own R&R
  • Stock options and RARI Token grants
  • Hardware and software support
  • Tuition reimbursement program to support your professional development

We are passionate about what we do and care deeply about our product. We are committed to creating a culture of learning and growth, where our team members can thrive. If you are interested in joining us on this mission, we would love to see you on-board!

About us

Rarible is a top multichain, community-centric NFT marketplace. It is underpinned by Rarible Protocol, community-governed NFT trading API that simplifies building community marketplaces and other ground-breaking NFT projects and integrations.

With over $300 million in trading volume to date, Rarible is one of the leading NFT brands, constantly innovating on the decentralized solutions for the web3 space.

We are growing and evolving non-stop, and are looking for a Partner Manager to join our dynamic and passionate web3 team.