Helton Luiz Marques

Helton Luiz Marques

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Senior Backend Engineer | Go, AWS, GCP, Blockchain | 10+ years scaling high-demand services
Pomerode, State of Santa Catarina, Brazil

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Résumé

Jobs verified_user 0% verified
  • Eureka Labs
    Senior Backend Engineer
    Eureka Labs
    Mar 2026 - Current (6 months)
  • Injective Labs
    Senior Backend Engineer
    Injective Labs
    Sep 2025 - Feb 2026 (6 months)
    * Developed and maintained the indexer service, focusing on integrating Ethereum smart contracts and transactions into the Injective database for real-time data synchronization and querying. * Designed scalable backend components to handle high-throughput blockchain data ingestion, ensuring data integrity and low-latency access for downstream applications. * Collaborated with cross-functional teams to optimize indexing pipelines, troubleshoot integration issues, and implement robust error handling for cross-chain transactions. * Contributed to enhancing the overall backend architecture for blockchain interoperability, including monitoring and scaling the service to support growing transaction volumes.
  • Ring
    Senior Software Engineer
    Ring
    Jan 2022 - May 2025 (3 years 5 months)
    For Ring, I developed, deployed and maintained a Tier-1 service, written in Go, taking full ownership of its lifecycle. Scaled the service across multiple regions (EU and US) Transitioning from Kafka to SQS. Handle over 10 million requests per minute reliably. Led the decommissioning of PostgreSQL, migrating data to DynamoDB using AWS Lambda functions in Python. Collaborating closely with the QA team, contributed to developing robust regression tests. Additionally, participated in bi-weekly on-call rotations, ensuring prompt resolutions of critical issues and maintaining system reliability during off-hours.
  • The Meet Group
    Search Engineer
    The Meet Group
    Nov 2018 - Dec 2021 (3 years 2 months)
    - Contributed to the development and expansion of The Meet Group's Search API, building a unified pipeline that delivers search functionality across all group brands. - Integrated external services and new events into the Kafka-based search pipeline, leveraging Apache Storm and Elasticsearch to ensure continuous data flow with 99.9% uptime.
  • LOVOO
    Software Engineer
    LOVOO
    Mar 2016 - Oct 2018 (2 years 8 months)
    I design and implement developer-friendly gRPC APIs and high performance backend services in Go for billing, push notifications and email systems, supporting CRM campaigns with over 100,000 messages per campaign. Successfully migrated billing and email services to Google Cloud Platform, optimizing for scalability and reliability. Post-acquisition, Helped to integrate our platform with The Meet Group’s live video streaming platform, ensuring seamless interoperability.
  • HDL da Amazonia Ltda Grupo LEGRAND
    Senior Software Analyst
    HDL da Amazonia Ltda Grupo LEGRAND
    Aug 2013 - Jan 2016 (2 years 6 months)
    Developed a Home Automation Gateway based on Linux to provide a REST API interface using Go Language and C. Created and set up from scratch the embedded Linux OS / BSP on BeagleBone board (Buildroot, uClibc, Busybox, kernel 3.12). Creating a module to Command Fusion mobile app (javascript). Firmware development using C for ARM microcontrollers (STM32). Support internal team with the using of Git.
  • Intelbras
    Software Engineer
    Intelbras
    Aug 2007 - Jul 2013 (6 years)
    In charge of development of Hybrid PSTN/VoIP cordless phone, using Linux embedded and a proprietary toolchain. Responsible for analysis and implementation of software requirements, test plans as well and debugging code. Main projects: DECT Cordless Phones: - Board bring-up & validation. - Developed handset with LCD interface and drivers. - Developed phonebook, memory calls, fonts and icons firmware. PBX VoIP Cordless Phone TS60IP: - Developed micro-service based on mongoose webserver, pjsip (SIP stack) and libxml. - Using buildroot, replacing the processor manufacturer toolchain (kernel 2.6.28). - Developed tools and custom Linux OS for hardware and software validation. Enduser firmwares deployment.
Education verified_user 0% verified
  • Universidade do Vale do Itajaí
    Pós Graduação, Post Graduation in Quality and Software Engineering
    Universidade do Vale do Itajaí
    Jan 2012 - Dec 2013 (2 years)
  • Universidade Positivo
    Computer Engineering, Hardware / Software
    Universidade Positivo
    Jan 2001 - Dec 2007 (7 years)
  • Instituto Federal do Paraná IFPR Curitiba
    Electronics Technician, Telecommunications
    Instituto Federal do Paraná IFPR Curitiba
    Jan 1996 - Dec 2000 (5 years)
Projects (professional or personal) verified_user 0% verified
  • g
    goami - Asterisk Manager Interface (AMI) client in Go
    Aug 2013
    An asterisk manager interface client written in Go
  • T
    TS60IP
    Nov 2010 - Oct 2013 (3 years)
    Webpages, IP, device drivers, Linux applications, cordless and Handset Software.