Top 15 Freelance Back End Developers in San Francisco, United States

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Jesse G.

Desarrollador back-end

I'm a full-stack and AI/ML developer with a passion for creating intelligent solutions that drive business impact. With extensive experience in designing production-ready...

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Jenson B.

San Francisco, Estados Unidos

Desarrollador back-end

AWS, Data Visualization, Docker

I'm Jenson Booth, a software engineer specializing in AI-infused agent architectures. I bridge static applications and autonomous intelligence, designing scalable, agent-...

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Lennox K.

San Francisco, Estados Unidos

Desarrollador back-end

.NET, AngularJS, AWS

Hi, I'm Lennox Kuria. I design adversarial test cases, construct deterministic evaluation rubrics, and perform surgical code audits for frontier LLM training pipelines. I...

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Ryan G.

San Francisco, Estados Unidos

Desarrollador back-end

AWS, Docker, Elasticsearch

I’m a senior platform UI engineer who loves turning complex requirements into smooth, scalable interfaces. With 10+ years of experience building high-performance UI and b...

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Chandana

San Francisco, Estados Unidos

Desarrollador back-end

AngularJS, AWS, Azure

I have more than 11 years of experience working as a Full Stack Java Developer. I worked on both web-based and enterprise applications. My work includes requirement analy...

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Thomas L.

San Francisco, Estados Unidos

Desarrollador back-end

AWS, Docker, DynamoDB

With over 10 years of experience building scalable, intelligent systems and a strong background in full stack and mobile development, I am well-positioned to contribute t...

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Julian W.

San Francisco, Estados Unidos

Desarrollador back-end

AWS, Django, Docker

Hi, I’m Julian Wong. I’m an AI/Software Engineer with 8+ years of experience building full-stack and distributed systems across AWS, fintech, and enterprise SaaS. I desi...

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Ryan J.

San Francisco, Estados Unidos

Desarrollador back-end

Azure, CSS, Django

Biografía en primera persona de 2 párrafos, tono amistoso

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Ali H.

San Francisco, Estados Unidos

Desarrollador back-end

AWS, Bootstrap, CSS

I am a software engineer with a B.A. in Computer Science, specializing in building scalable full-stack applications using React, TypeScript, and Flask. I enjoy turning co...

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Samyukth C.

San Francisco, Estados Unidos

Desarrollador back-end

Amazon Web Services, Bash, Docker

I'm Samyukth Challa, an AI/ML Engineer based in the United States with a track record of building enterprise GenAI platforms, including LLM orchestration, RAG pipelines, ...

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Michael M.

San Francisco, Estados Unidos

Desarrollador back-end

AWS, C++, Cassandra

Hi, I’m Michael Musson, a Senior Software Engineer based in San Francisco prioritizing scalable, cloud-native back-end systems and data platforms for fintech, ecommerce, ...

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Ethan C.

San Francisco, Estados Unidos

Desarrollador back-end

AWS, Django, Docker

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Contamos con más de 14 500 desarrolladores back-end que han trabajado en muchos sectores diferentes y abarcan diversos estilos y conjuntos de habilidades.

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Empresas de todo el mundo confían en nosotros

"Excellent developer! She built exactly what I wanted and was a pleasure to communicate with. Highly recommended for any web project."

Hlina @ Personal

Apr 19, 2026

"Teshome Worku was great to work with.They really listened to my needs and all works was delivered on time."

Simana @ Walin Technologies

Apr 17, 2026

"Hammad is a dream come true developer! One hell of a guy. It was an 4-month project, I am very pleased with end product and our Customers love it too! Highly recommended."

Ali @ Auric-Studio

Apr 16, 2026

"Jimmy Pham was great to work with. They really listened to my needs and all work was delivered on time. Great work and great product delivered. I look forward to continuing to work with Jimmy and the team."

tony @ sportyconnects

Apr 16, 2026

"I highly recommend Darricl for any software engineering role or project. He demonstrates strong technical expertise, a rigorous approach to design and development, and an excellent ability to analyze and solve complex problems. Reliable and dedicated, Darricl consistently delivers efficient, maintainable solutions tailored..."

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M. @ WTDS

Apr 15, 2026

"I hired Princewill to work on the AI-Powered Medical Consultation System (HealthBridge), and I was genuinely impressed by his technical depth and commitment to delivering quality work. He played a key role in building the MVP architecture, implementing backend microservices, and integrating AI driven consultation logic...."

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Prince @ Accian Limited

Apr 11, 2026

"Trabajar con Twine nos ha permitido ampliar los proyectos más rápido que antes y Twine Business facilita mucho la gestión y el pago a los contratistas de todo el mundo".

-Josh Bolland

CEO, J B Cole

"Encontré una diseñadora increíble y es rápida. Ahora le envío mis ideas y ella las transforma en un gran diseño. La colaboración es rápida, profesional y fácil. Parece como si ya formara parte de nuestro equipo".