# Senior Backend Engineer Location[Portugal](https://jobicy.com/resume-region/portugal.md)Rate, USD Not specifiedWork schedule Full Time, Links Language skills English, PortugueseAvailable for Hire Yes [Hire me](#resume-dialog) Save Log in to save ## About me I am a Senior Backend Engineer with 7 years of hands-on experience building backend systems across fintech, government, and logistics sectors. Currently, I lead backend development at Luggit, a logistics company, where I own the architecture, release cycles, and production reliability across a 10-microservice ecosystem. My career has focused on building systems that handle real-money transactions and compliance-critical data, including cryptocurrency AML screening and government platforms serving millions of citizens. I prioritize performance, security, and zero-downtime in all my projects. At Luggit, I manage backend delivery by setting priorities, defining architecture, and overseeing production deployments across cross-functional teams. I led the delivery of a B2B partner platform enabling authentication and booking requests, coordinating frontend efforts and shipping the product reliably within two months. I designed a multi-directional payment simulator that supports real-time charge and refund calculations for both back-office and client-facing applications. I have successfully reduced API response times by approximately 30% through systematic refactoring, eliminating redundant database calls, introducing bulk transaction operations, and leveraging asynchronous Node.js patterns. I achieved zero registered downtime across all releases. Additionally, I built API endpoints exposing the full payment lifecycle to the data team, enabling machine learning-powered product features. Mentoring junior engineers is an important part of my role, where I focus on REST API design, SOLID principles, and effective use of AI coding tools. I established Git procedures, code review standards, and CI/CD pipelines across the team. Beyond implementation, I contribute to product decisions by participating in roadmap discussions, running stakeholder syncs, and proactively proposing technical agenda topics to improve products and processes across backend, frontend, mobile, and data teams. Previously, I worked remotely at Uphold, developing multi-jurisdictional compliance and risk management systems, building AML risk scoring algorithms, and enhancing due diligence workflows securing over $2 billion in cryptocurrency transactions. I built real-time sanctions screening services and fraud prevention features with a security-first design. I managed full-cycle third-party integrations and represented the backend team in a company-wide infrastructure modernization to Kubernetes. Earlier roles include building microservices ecosystems at Vigil365, implementing integrations for property management and payment gateways, and developing government platforms and banking loan systems at Adentis. I am passionate about building scalable, secure, and reliable backend systems that drive business success. ## Professional area ### [Developer & Engineer](https://jobicy.com/resume-category/dev.md) ## Skills ### [Agile](https://jobicy.com/resume-skill/agile.md)[AWS](https://jobicy.com/resume-skill/aws.md)[CI/CD](https://jobicy.com/resume-skill/ci-cd.md)[Compliance](https://jobicy.com/resume-skill/compliance.md)[Docker](https://jobicy.com/resume-skill/docker.md)[E2E Testing](https://jobicy.com/resume-skill/e2e-testing.md)[Firebase](https://jobicy.com/resume-skill/firebase.md)[GCP](https://jobicy.com/resume-skill/gcp.md)[Git](https://jobicy.com/resume-skill/git.md)[Golang](https://jobicy.com/resume-skill/golang.md)[Grafana](https://jobicy.com/resume-skill/grafana.md)[JavaScript](https://jobicy.com/resume-skill/javascript.md)[Kafka](https://jobicy.com/resume-skill/kafka.md)[Kubernetes](https://jobicy.com/resume-skill/kubernetes.md)[Mentoring](https://jobicy.com/resume-skill/mentoring.md)[Microservices](https://jobicy.com/resume-skill/microservices.md)[MongoDB](https://jobicy.com/resume-skill/mongodb.md)[MySQL](https://jobicy.com/resume-skill/mysql.md)[Node.js](https://jobicy.com/resume-skill/node-js.md)[PostgreSQL](https://jobicy.com/resume-skill/postgresql.md)[Redis](https://jobicy.com/resume-skill/redis.md)[Risk Management](https://jobicy.com/resume-skill/risk-management.md)[Stakeholder Management](https://jobicy.com/resume-skill/stakeholder-management.md)[Terraform](https://jobicy.com/resume-skill/terraform.md)[TypeScript](https://jobicy.com/resume-skill/typescript.md) ## Education 2018 Full Stack Coding Bootcamp @ Code for All ## Experience Apr 2024 - Present Lead Backend Engineer @ Luggit Owned all backend delivery — setting priorities, defining architecture, deciding release timelines, and managing production deployments across cross-functional teams including frontend. Led the end-to-end delivery of a B2B partner platform enabling authentication and booking requests, coordinating frontend work and shipping reliably to production in 2 months. Designed a multi-directional payment simulator across a 10-microservice ecosystem, enabling real-time charge/refund calculations for both back-office and client-facing applications. Reduced API response times by ~30% through systematic refactoring — eliminating redundant database calls, introducing bulk transaction operations, and leveraging Node.js asynchronous patterns. Achieved zero registered downtime across all releases. Built API endpoints exposing the full payment lifecycle — charges, refunds, request data — to the data team, enabling ML-powered product features. Mentored junior engineers on REST API design, SOLID principles, and effective use of AI coding tools. Established Git procedures, code review standards, and CI/CD pipelines across the team. Contributed to product decisions beyond implementation — participating in roadmap discussions with operations and market management, running regular stakeholder syncs, and proactively proposing tech agenda topics to improve products and processes across a cross-functional team spanning backend, frontend, mobile, and data. Jan 2022 - Apr 2024 Backend Engineer @ Uphold Developed and enhanced a multi-jurisdictional compliance and risk management system, building AML risk scoring algorithms and enhanced due diligence workflows to secure over $2B in cryptocurrency transactions. Built real-time sanctions screening services and critical fraud prevention features, embedding security-first design into core transaction flows. Managed full-cycle third-party integrations — from API research and technical spikes to production deployment — ensuring reliable data flow and system interoperability. Represented the backend team in a company-wide infrastructure modernization to Kubernetes, improving application performance and reducing operational costs. May 2021 - Dec 2021 Backend Engineer @ Vigil365 Built a microservices ecosystem using RPC over HTTPS with asynchronous messaging (NATS), enabling high-volume inter-service communication and system resilience. Implemented integrations for Property Management Systems, Payment Gateways, and Digital Lock providers, using a stateless agent as an Anti-Corruption Layer to protect core business logic. Sep 2018 - Apr 2021 Junior Backend Engineer @ Adentis Developed and shipped end-to-end features for a Portuguese government platform serving 10M+ citizens, facilitating social security and financial assistance benefits processing. Built a personal loan application system from scratch for a major Spanish bank, implementing an optimized workflow that enabled same-day loan approval and fund disbursement. ## Recommend this talent ## Related resumes * [![Photo](https://jobicy.com/react/themes/app/images/candidate.png) Software DeveloperGreeceI am Ioannis Michadasis, a Computer Science student and software developer with a strong focus on full stack development, cross-platform applications, and practical problem solving. I enjoy building tools that…](https://jobicy.com/cv/id147999.md) * [![Photo](https://jobicy.com/react/themes/app/images/candidate.png) Tech Lead, Generative AIBrazilI am a Tech Lead and AI R&D Specialist with more than 5 years of experience in software engineering and machine learning. My work focuses on designing, benchmarking, and deploying…](https://jobicy.com/cv/id147998.md) * [![Photo](https://jobicy.com/react/themes/app/images/candidate.png) Fullstack DeveloperRussiaI am a fullstack developer with nearly five years of experience building web applications and working across frontend and backend technologies. I focus on creating responsive, reusable, and maintainable interfaces…](https://jobicy.com/cv/id147997.md) * [![Photo](https://jobicy.com/react/themes/app/images/candidate.png) Product ManagerCroatiaI am a Product Manager and IT engineer with more than 13 years of experience delivering 30+ international B2B and B2C projects across Europe and the US. I have worked…](https://jobicy.com/cv/id147995.md) * [![Photo](https://jobicy.com/react/themes/app/images/candidate.png) Junior Data AnalystHungaryI am a Computer Science and Engineering graduate with a strong foundation in programming, algorithms, data structures, databases, software engineering, cybersecurity, AI, and machine learning. My academic background has helped…](https://jobicy.com/cv/id147973.md) [More Resumes](https://jobicy.com/talent.md)