Elton Campos

Software Engineer

São Paulo, São Paulo, Brazil6 yrs 3 mos experience

Key Highlights

  • Expert in Elixir and Go for scalable systems.
  • Proven track record in reducing incident rates.
  • Strong experience in cloud migration and integrations.
Stackforce AI infers this person is a Backend-focused Software Engineer with expertise in Fintech and SaaS industries.

Contact

Skills

Core Skills

ElixirGo (programming Language)React.js

Other Skills

LiveviewWeb3gRPCGrafanaDatadogElastic Stack (ELK)AwsPhoenix FrameworkAPI RESTpostgresVue.jsdockerCINode.JSAmazon EKS

About

An experienced developer with a deep passion for building scalable and efficient software solutions. With a focus on distributed and reliable systems, I have a proven track record of delivering high-performance applications.

Experience

Yolo group

Software Engineer

Jun 2024Nov 2025 · 1 yr 5 mos · Tallinn · Hybrid

  • Led improvements to Authentication and Authorization services across multiple brands, reducing login-related incident reports by ~35% and improving overall reliability of identity flows.
  • Designed and optimized Web3 login (SIWE & WalletConnect) in Elixir/Phoenix, decreasing mobile reconnection failures by ~40% and improving login completion rate on iOS/Android by ~25%.
  • Implemented caching, optimized token lifecycle logic, and refined gRPC communication between Lab services, reducing average auth response times by ~20–30%.
  • Diagnosed and resolved critical production issues (LiveView WebSocket drop on mobile, multi-device session loops), cutting error rates in those flows by ~50%.
  • Increased test coverage for authentication components from ~65% to >85%, improving confidence in deploys and reducing regressions.
  • Contributed to documentation, design specs, and engineering standards, improving onboarding time for new developers by ~30%.
  • Performed peer reviews and collaborated cross-team with Product, Ops, and WebFramework, accelerating delivery of new auth features by ~15%.
ElixirGo (Programming Language)LiveviewWeb3gRPCGrafana+2

Facilitapay

Senior Software Engineer

Jan 2024May 2024 · 4 mos · Remote

  • Developed and shipped new features for the FacilitaPay payment platform using Elixir and Go, improving user experience and reducing support requests by ~20%.
  • Designed and implemented integrations with major Latin American payment providers (PIX, boleto, local acquirers) using Go-based services and Elixir backend modules, increasing transaction coverage and reliability.
  • Participated in large-scale cloud migration tests, validating services, load behavior, and failover strategies to reduce downtime risks.
  • Refactored and modernized legacy Elixir components and Go microservices, improving system performance by ~25% on critical payment flows.
  • Improved observability (logs, metrics, tracing) across Elixir and Go services, reducing incident resolution time by ~30%.
  • Conducted pull request reviews, pair programming, and documentation improvements, raising engineering standards and accelerating team onboarding.
ElixirAwsPhoenix FrameworkAPI RESTpostgresVue.js+1

Octos

Software Engineer

Oct 2022Jan 2024 · 1 yr 3 mos · Brazil

  • Designed and developed a high-concurrency Video Monitoring System using Elixir and complementary microservices in Go, improving real-time processing throughput by ~30%.
  • Implemented intelligent alerting and event-detection pipelines for suspicious activities, reducing false positives and improving detection accuracy across monitored environments.
  • Ensured system fault-tolerance and resilience through OTP supervision strategies, distributed processing, and optimized communication between Elixir and Go components.
  • Built and contributed to a user-friendly monitoring interface that supported multiple industry use cases, increasing adoption and reducing operator response time.
  • Collaborated on system scalability and infrastructure improvements, enabling seamless integration with existing security platforms.
  • Participated in code reviews, architectural discussions, and performance tuning sessions to maintain high engineering standards.
dockerElixirCINode.JSAmazon EKSCd+7

Envixo

Software Engineer

Jul 2021Oct 2022 · 1 yr 3 mos · Portugal

  • Designed and developed a full e-commerce platform using Elixir (and supporting microservices in Go), enabling faster onboarding and improving seller experience.
  • Implemented core features such as product catalog management, order tracking, customer workflows, and secure payment processing, reducing operational friction and support needs by ~25%.
  • Integrated third-party logistics and shipping APIs (tracking, freight quoting, fulfillment), improving delivery accuracy and reducing manual intervention by ~30%.
  • Designed internal tools and operational dashboards to enhance visibility over orders, disputes, refunds, and logistics performance, enabling stakeholders to react faster to business events.
  • Improved system performance and scalability through code refactoring, caching strategies, and optimizing database queries, reducing average response times by ~20%.
  • Collaborated directly with clients through weekly product demos and technical discussions, aligning business expectations and accelerating feature delivery.
Elixir (linguagem de programação)Go (Programming Language)dockerliveViewCINode.JS+11

Iza.com.vc

Software engineer

Jan 2020Jul 2021 · 1 yr 6 mos · São Paulo, São Paulo, Brasil

  • Specialized as a Software Developer at IZA, focusing on Elixir.
  • Conducted code refactoring to improve maintainability and readability of the codebase.
  • Implemented performance optimizations for efficient system operations.
  • Designed and developed integrations with external services to enhance application communication.
Elixir (linguagem de programação)PhoenixAwsNext.jsTypeScriptDocker+3

Plus-it consulting

Back End Developer

Jan 2019Jan 2020 · 1 yr

  • Developed a Sales Force Automation Solution to enhance sales team performance and streamline workflows.
  • Utilized Golang to create a robust platform featuring real-time sales analytics and task automation.
  • Integrated the solution with existing CRM systems and third-party applications for seamless sales processes.
Go (Programming Language)CICdAwsApache KafkaKubernetes+6

Repense comunicação

Frontend Developer

Jan 2018Jan 2019 · 1 yr · São Paulo, Brasil

  • As a developer using as main technologies: Html css, jasvascript and react.
  • I worked on the development of landing pages and small interactive games and in services for large retail and telephony companies such as OI, Pernambucanas and Mondial
React.jsCascading Style Sheets (CSS)JavaScriptHTMLSASSHTML5+1

Education

ElxPro

Computer Programming/Programmer — General

Jan 2019Jan 2023

Js expert

Technical

Nov 2018Present

Stackforce found 100+ more professionals with Elixir & Go (programming Language)

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