Open to opportunities

Jonathan Almeida

@jonathanalmeida

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Software engineer specializing in backend and infrastructure for financial systems.

Brazil

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What I'm looking for

I'm seeking roles that leverage backend engineering and infrastructure expertise, with opportunities to solve complex financial integrations, lead technical teams, and build reliable, scalable systems in collaborative, performance-driven environments.

I'm a software engineer and infrastructure specialist with deep experience building and maintaining backend services, banking integrations, and mission-critical event infrastructures. I design domain-oriented APIs and automate billing and payment workflows using technologies like NestJS, Node.js, and various database systems.

I have managed large-scale IT operations for events and production environments, leading on-site teams, administering Linux servers, firewalls, and monitoring systems to ensure high availability under pressure. I've processed CNAB files, integrated communications via email and WhatsApp, and maintained legacy PHP systems to work with modern services.

I bring a strong analytical mindset and problem-solving focus, with experience in cloud and serverless components (AWS Lambda, SQS) and automation and monitoring tools. I aim to deliver robust, scalable solutions that bridge infrastructure reliability and backend application quality.

Experience

Work history, roles, and key accomplishments

Software Engineer

Kolek

Nov 2024 - Oct 2025 (11 months)

Developed high-complexity financial solutions focusing on banking integrations and billing automation; designed scalable NestJS backend services and processed CNAB files for banking systems integration.

NestJS TypeScript CNAB Processing REST APIs MySQL PHP AWS Lambda Amazon SQS

Infrastructure Manager

Movimento Psicodália Produções Artísticas

Feb 2014 - Mar 2024 (10 years 1 month)

Planned, implemented and operated critical event IT infrastructure supporting sales and production workflows; managed on-site technical teams and maintained Linux servers, firewalls and monitoring for high availability.

Linux Firewalls Nagios Network Planning

Programmer

NTT Data

Jun 2015 - Jun 2016 (1 year)

Supported and automated billing processes for a large telecommunications client, developing and maintaining corporate applications and optimizing system integrations and data flows.

JavaScript PHP System Integration SQL Application Support

Infrastructure Analyst

D-SaaS / Titans Group

Jan 2012 - Jun 2013 (1 year 5 months)

Provided support and maintenance for server and network infrastructure in SaaS environments; monitored security and availability, resolved incidents and produced technical documentation for migrations and deployments.