Mid-Level Full Stack Engineer
Full-Stack Engineer
Available for hire
Years of
experience
4+ years
Experience
level
Mid-level
Available
for
Full-time, Part-time, Contract, Freelance
Available from
23 Jun 2026
Full Stack Engineer with 4 years at Banco Safra (4M+ clients), working on core banking systems — mobile app, internet banking, and manager platforms. My stack centers on C#/.NET, Node.js, Angular, Kafka, SQL Server, and AWS.
Highlights: led .NET 3.1 → .NET 8 migration, moved on-prem to AWS, built real-time Pix payment flows with facial recognition, and cut production incidents by ~50%. Currently building a personal health app in React + .NET 8 to broaden my frontend range.
Seeking remote Full Stack or Backend roles with international teams.
Skills
Languages
Employment History
Mid-Level Full Stack Engineer at
Safra Bank
Current
2025
-
Now
Designs and delivers scalable backend services and REST APIs for business-critical financial systems using C#/.NET and Node.js — supporting 4M+ clients across mobile, internet banking, and manager platforms.
Led migration of on-premises applications to AWS — architecting deployment pipelines across dev, staging, and production environments, improving scalability and system reliability.
Leads projects across the full engineering spectrum: requirements definition, architectural design, API specification, backend and frontend development, and production deployment.
Works within a microservices architecture with event-driven patterns (Kafka), coordinating services per business domain and ensuring consistency across customer and manager-facing platforms.
Built a fixed-income rate negotiation backend service giving managers 100% autonomous control within predefined thresholds — eliminating back-office dependency and enabling instant approvals.
Owns full testing lifecycle — unit, integration, and regression — as part of a shift-left engineering culture with no dedicated QA layer.
Drives production observability using Dynatrace, Kibana, Grafana, and Elasticsearch for incident investigation and continuous improvement.
Full Stack Engineer at
Safra Bank
2023
-
2025
Designed and implemented a Pix payment integration backend connected to a messaging app — real-time payment processing via Node.js BFF, facial recognition integration, and anti-fraud controls linking multiple third-party and internal services through REST APIs.
Integrated manager onboarding systems with DocuSign REST API — replacing manual signature workflows with a fully automated upstream/downstream integration using .NET services and Node.js BFF.
Led migration from .NET 3.1 to .NET 8 across core banking services, modernizing legacy codebases while maintaining production stability.
Diagnosed, debugged, and resolved 100% of high-priority security vulnerabilities across critical onboarding and accreditation backend systems.
Reduced production incidents by ~50% and resolved all critical cases within SLA in high-demand banking workflows involving multiple integrated services.
Trainee Full Stack Developer at
Safra Bank
2022
-
2023
Contributed to the development and evolution of onboarding and account-opening systems supporting customer acquisition at scale, including integration touchpoints with external identity verification services.
Improved internal manager-facing journeys by ~30% in efficiency through database query optimization and backend process parallelization.
Resolved 100% of critical production issues within SLA; recognized for strong communication, ownership, and rapid learning.
Education
Full Stack Development Certificate at
Ada Tech
2022
-
2023
Computer Engineering at
Universidade Federal do Mato Grosso do Sul
Current
2015
-
Now