Open to opportunities

Christian Serna

@christianserna

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Experienced Full Stack Developer with a strong foundation in web applications.

United States

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What I'm looking for

I am looking for a role that fosters innovation, collaboration, and continuous learning, where I can contribute to impactful projects and grow my technical expertise.

I am a seasoned Full Stack Developer with extensive experience in developing and maintaining scalable web applications across various technology stacks, including React, Angular, and Node.js. My proven ability to deliver performant, user-focused solutions is demonstrated through my end-to-end development skills, third-party integrations, and CI/CD automation.

Throughout my career, I have achieved significant impacts, such as reducing system latency by 33.4% and minimizing post-release defects by nearly 40%. I thrive in collaborative environments, working closely with cross-functional teams to meet both business and technical goals, ensuring that every project I undertake is executed with precision and excellence.

Experience

Work history, roles, and key accomplishments

Current

Senior Full Stack Developer

Current

Snapsheet Inc

Jul 2022 - Present (3 years)

Developed and maintained scalable full-stack web applications using React, Next.js, Node.js, and .NET, enhancing performance and responsiveness by 29.7% across devices. Integrated third-party services such as payment gateways, notification tools, and promotion engines, reducing manual workflows and operational overhead by 50.3%.

React Next.js Node .NET RESTful APIs Jest Supertest Postman AWS CI CD

Full Stack Software Engineer

Offshore Development Center

Oct 2021 - Present (3 years 9 months)

Helped build and enhance a phishing incident response platform using C# (.NET) and Angular, supporting enterprise-scale email threat triage and resolution. Automated classification workflows to handle over 90% of non-malicious email reports, reducing manual analyst effort and accelerating incident turnaround.

C#.NET Angular RESTful APIs xUnit Postman Azure DevOps CI CD Agile

Full Stack Developer

Codup

Apr 2019 - Present (6 years 3 months)

Developed and maintained a full-stack web application using the MERN stack (MongoDB, Express.js, React, Node.js), supporting complex workflows such as data processing, user interaction, and automated transactions. Built customer-facing interfaces to enable document viewing, e-signatures, real-time updates, and secure online payments—improving user experience and platform usability.

MongoDB React Node MERN Stack RESTful APIs GitHub CI CD Agile

Web Developer

Brainvire Infotech

Oct 2016 - Present (8 years 9 months)

Developed and maintained responsive single-page applications using HTML, CSS, and JavaScript, enhancing usability and contributing to a 10% increase in client retention. Integrated dynamic frontend components with RESTful APIs to enable real-time data flow and improve overall interactivity across user-facing modules.