luciobehr
Back End Engineer
Back-End Developer specializing in Elixir, with experience in scalable API development, blockchain integration, and conditional markets implementation in Web3. Worked on building a DEX and contributed to a futarchy systempresented at Devcon, which gained interest from figures like Vitalik Buterin.
Experienced with GraphQL, Blockscout (Gnosis Scan), smart contracts (ERC20, ERC1155), Kafka, PostgreSQL, and on-chain/off-chain data integration. Looking for opportunities in Web3, blockchain, DeFi, and decentralized infrastructure, focusing on building scalable and reliable solutions.
Experience: 2 years
Yearly salary: $50,000
Hourly rate: $40
Nationality: 🇧🇷 Brazil
Residency: 🇧🇷 Brazil
Experience
Back-end Developer
Quiver.trade 2023 - 2025
At Quiver.Trade, I was responsible for developing and maintaining the back-end of a trading platform, focusing on system scalability and robustness. I worked on APIs and WebSockets using Elixir (Phoenix), optimizing internal services to enhance efficiency in trade operations. Main responsibilities: Developing APIs for internal and external service communication. Implementing and optimizing WebSockets to ensure low-latency operations. Managing and restructuring Kafka topics to improve message distribution and consumption. Integrating data with BigQuery and Looker Studio, enabling real-time strategic analysis. Creating data processing pipelines for real-time insights. Automating internal processes and monitoring through Discord-integrated bots. Setting up staging environments with Docker, ensuring safer testing before deployment. My work at Quiver.Trade was crucial in optimizing system efficiency, reducing latency, and ensuring a high-performance infrastructure capable of handling a large volume of low-failure, high-scalability operations.
Back-end Developer
Futarchy.fi 2023 - 2025
At Futarchy.fi, I worked on the back-end development of an innovative conditional markets project, fully integrated with blockchain and smart contracts. The project gained significant attention in the crypto community, being presented at Devcon and discussed by leading figures such as Vitalik Buterin, the creator of Ethereum. My key contributions included: Developing GraphQL queries to extract data from smart contracts and blockchain sources. Implementing API integrations with Blockscout (Gnosis Scan) for transaction analysis and data visualization. Creating and managing ABIs for dynamic interaction with smart contracts. Integrating the Elixir-based back-end with GraphQL queries, ensuring smooth blockchain communication. Processing and structuring returned data for API exposure. Futarchy.fi’s innovative approach to conditional markets has sparked discussions within the Web3 ecosystem, positioning it as a promising solution for decentralized governance and prediction-based economic models.
Skills
api
architecture
aws
backend
cloud
docker
elixir
erc-1155
erc-20
git
graphql
postgres
python
scrum
solidity
sql
english
portuguese