Leonardo Montenegro

Senior Software Engineer

Brazil9 yrs 9 mos experience
Highly Stable

Key Highlights

  • Led projects reducing manual effort and enhancing performance.
  • Expert in building scalable digital products with modern workflows.
  • Strong background in mentoring teams and implementing agile practices.
Stackforce AI infers this person is a Fullstack Software Engineer specializing in Retail and Healthcare technology.

Contact

Skills

Core Skills

ReactjsNodejsPythonTypescript

Other Skills

GraphQLPostgreSQLGCPFlaskFastApiPostgresMongoDBAWSMySQLNestJSAgile (Scrum/Kanban)CypressWindows AzureOracle DatabaseC#

About

Software Engineer with over 5 years of professional experience building and scaling modern web applications using ReactJS, Python, and NodeJS. I combine strong technical expertise with a passion for delivering robust, user-focused solutions across frontend, backend, and fullstack development. I have led projects that optimized systems, reduced manual effort, and enhanced performance by leveraging cloud platforms (AWS, GCP), containerization, and CI/CD pipelines. My background includes not only coding but also mentoring teams, implementing agile practices, and introducing DevOps best practices to streamline delivery and improve system reliability. Currently specializing in creating scalable digital products with a focus on performance, usability, and innovation. Skilled in designing architectures, integrating APIs, and deploying applications in production environments with modern workflows. Skills: ReactJS · TypeScript · NodeJS · Python · FastAPI · Flask · PostgreSQL · MongoDB · GraphQL · REST APIs · AWS · GCP · CI/CD · Docker · Kubernetes · Git/GitHub · Agile (Scrum/Kanban) · Software Architecture · Test Automation

Experience

9 yrs 9 mos
Total Experience
2 yrs 9 mos
Average Tenure
--
Current Experience

Idelsoft

Senior Software Engineer

Jan 2026Present · 3 mos · Remote

  • Focused on developing and maintaining POS (Point-of-Sale) systems used in retail environments, ensuring high performance, reliability, and scalability across both frontend and backend services.
  • Designing and implementing full-stack features using React, Node.js, and GraphQL, enabling efficient integration between user interfaces, backend services, and transactional data flows.
  • Collaborating closely with cross-functional teams to deliver improvements in product management, payment flows, and operational reporting, helping businesses streamline retail operations.
  • Leveraging modern development practices including Git/GitHub workflows, API design, and code review processes to maintain high code quality and system maintainability.
  • Contributing to architectural discussions and continuous system improvements to ensure scalable solutions capable of supporting high-volume POS operations.
  • Skills: ReactJs, Node.js, GraphQL, TypeScript, PostgreSQL, GCP
ReactJsNode.jsGraphQLTypeScriptPostgreSQLGCP+2

Astrix

Software Engineer

Sep 2024Jun 2025 · 9 mos · Remote

  • Software Engineer with strong experience as a LIMS consultant, working on multiple implementation and upgrade projects for leading platforms such as Thermo Fisher SampleManager and LabVantage. Acted as a key technical partner for laboratories, ensuring smooth deployment, system customization, and workflow optimization tailored to business and compliance needs.
  • Collaborated with cross-functional teams to design, develop, and deploy new features using NodeJS and ReactJs, delivering modern and user-friendly interfaces that improved laboratory productivity. Through these initiatives, contributed to a 25% reduction in data entry errors, accelerated turnaround time by 30%, and enabled annual operational savings estimated at $200K through automation and process standardization.
  • Drove several upgrade projects that enhanced system performance, security, and scalability, resulting in a 40% improvement in system reliability and significantly reduced downtime. Partnered with stakeholders to map requirements, implement integrations with external tools, and deliver training sessions, empowering end users to adopt new solutions seamlessly and increasing adoption rates by over 90%.
  • By combining consulting expertise in LIMS systems (SampleManager and LabVantage) with hands-on software development in NodeJS and ReactJs, brought measurable results to laboratory operations, aligning advanced technology with strict regulatory standards and contributing to the overall digital transformation of R&D and quality environments.
  • Skills: ReactJs, NodeJs, Typescript, AWS, MySQL, MongoDB
ReactJsNodeJsTypescriptAWSMySQLMongoDB+2

Clarke energia

Senior Software Engineer

Oct 2022Dec 2025 · 3 yrs 2 mos

  • Focused on maintaining, improving, and developing new features for Clarke Energia’s internal and client-facing systems, ensuring higher efficiency and usability. Contributed to a 30% reduction in user routine execution time, optimizing workflows across multiple projects.
  • Contributed significantly to implementing agile methodologies such as Scrum and Kanban, resulting in 25% faster project delivery and significantly improved team collaboration.
  • Leveraged a modern tech stack including Git/GitHub, Flask (Python), GraphQL, Apollo, React, TypeScript/JavaScript, HTML, and CSS to build robust and scalable solutions. These improvements helped achieve 20% cost savings annually through performance optimization and system automation.
  • Collaborated closely with cross-functional teams to tackle complex challenges, optimize system performance, and integrate DevOps practices, leading to a 40% decrease in system downtime and improved deployment reliability.
  • Actively contributed to code review processes and the adoption of best practices, ensuring cleaner, more maintainable code that reduced bug occurrence rates by 35% and improved overall development velocity.
  • Skills: ReactJs, Typescript, Python, Flask, FastApi, GCP, Postgres, MongoDB
ReactJsTypescriptPythonFlaskFastApiGCP+3

Minha casa construida

Software Engineer

Aug 2020Sep 2022 · 2 yrs 1 mo · Remote

  • At a fast-growing real estate startup, I focused on building and scaling web solutions with ReactJS, TypeScript, and NestJS, delivering intuitive, high-performance applications that helped clients find properties perfectly suited to their needs, making the search for a dream home simpler and smarter. I contributed to a consistent web ecosystem by introducing new features and improvements that reduced manual effort and optimized workflows.
  • Working closely with cross-functional teams, I applied agile practices like Scrum and Kanban to accelerate delivery and strengthen collaboration. Leveraging a modern tech stack, including Python (Flask/FastAPI), NodeJs (NestJS), Express and AWS, I developed fullstack solutions that enhanced system reliability, usability, and scalability while promoting code quality through reviews and best practices.
  • Skills: ReactJS · TypeScript · NestJS · Python · Flask · FastAPI · AWS · PostgreSQL · MongoDB · Agile (Scrum/Kanban) · Fullstack Web Development
ReactJSTypeScriptNestJSPythonFlaskFastAPI+4

Equinox gold corp.

2 roles

Maintenance Engineer

Feb 2016Feb 2021 · 5 yrs

  • Developed and revised technical procedures to ensure efficient execution of mechanical activities, aligning with industry best practices. These initiatives increased operational efficiency and improved compliance with internal and external standards.
  • Managed preventive, predictive, and lubrication maintenance plans, driving a 25% reduction in unplanned downtime and improving equipment reliability across industrial operations.
  • Coordinated the planned service portfolio, ensuring adherence to schedules and optimizing available resources. This optimization led to a 15% increase in team productivity and more effective use of maintenance budgets.
  • Programmed mechanical activities and developed detailed schedules, guaranteeing timely task execution and achieving on-time delivery rates above 95%.
  • Conducted technical drawing analysis and development, enabling clearer project understanding and execution. This reduced project rework by 20% and improved communication between engineering and operations teams.
  • Prepared and issued maintenance indicators, delivering critical insights for strategic decision-making. Data-driven reports supported a 10% decrease in overall maintenance costs annually.
  • Managed resource provisioning, ensuring availability of materials and equipment necessary for operations. Improved procurement processes generated an estimated 12% cost saving in spare parts and consumables.

Intern

Mar 2014Jan 2016 · 1 yr 10 mos

  • Performed mechanical maintenance on industrial equipment, including crushing and grinding.
  • Contributed to the revitalization of the company's tool shop, improving the availability and efficiency of tools.

Education

Full Cycle

Postgraduate Degree — Software Engineering

Jan 2024Aug 2025

Cubos Academy

Postgraduate Degree — Information Technology

Feb 2022Sep 2022

UNIFAN - Centro Universitário Nobre

Bachelor's Degree — Mechanical Engineering

Feb 2012Dec 2019

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