Sandeep Singh
Sandeep

Sandeep Singh

Backend & AI Engineer

Open to new opportunities · Remote

I build thingsthat scale.Beautifully.

Backend and AI engineer with 13 years across Android, iOS, React Native, and now LLM-powered systems. I care as much about how things are built as what they do.

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Years shipping

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Products built

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Companies shipped at

0

Platforms mastered

About me

Not just an engineer.
A builder with taste.

Most backend engineers have never shipped a product to real users. I spent a decade doing it across five platforms — which is why the LLM systems I build today are designed around the person on the other end, not just the spec.

Currently drinking

Espresso. Always espresso.

🔨

How I learn

By shipping, not reading. Every mistake is a lesson.

🎧

Currently obsessing over

Building in public and documenting every mistake.

🌱

Currently learning

Multi-agent orchestration and RAG evaluation at scale.

The journey so far
📱 Born on Device

2012 to 2018 · 6 yrs

Android and iOS Engineer

4 agencies · 15+ apps shipped

Built native from scratch across both platforms and learned to ship under pressure.

JavaKotlinSwiftObjective-C
🔀 Write Once, Ship Twice

2018 to 2021 · 3 yrs

Technology Lead, Mobile

ProEves

Led cross-platform mobile delivery end to end and managed the full product lifecycle.

React NativeAndroidiOS
🔧 The Backend Shift

2021 to 2025 · 4 yrs

System Analyst to Senior Technical Specialist

PreludeSys

Moved fully into backend and full-stack, owning architecture and delivery across web platforms.

React.jsNext.jsNode.jsNestJS
🧠 Teaching Machines

2025 to Now

Technical Lead, AI Systems

LevelShift

Building LLM-powered backends and multi-agent systems that solve real problems.

PythonFastAPIRAG pipelinesOpenAIAzure OpenAI
Full experience →
From the people I've shipped with

"Sandeep is a highly adaptable and quick learner. Although he joined as a Mobile App Developer, he swiftly mastered web technologies such as ReactJS, NestJS, NextJS, and NodeJS, making significant contributions to multiple projects in a short span. His proactive approach and ability to explore innovative solutions consistently add value to the team. Sandeep's problem-solving mindset and dedication make him a tremendous asset to any organization."

JK
Janardhanan Kannan

Technical Program Manager

PreludeSys

"Sandeep is exceptionally accountable, consistently delivering high-quality code on time. His technical skills are top-notch and he is truly a valuable asset to any team."

GG
Gokulakrishnan G

Mobile Application Developer

PreludeSys

"I have known Sandeep for close to 3 years. He is accountable, takes ownership and delivers before the deadline, and constantly strives to excel. He proactively looks out for opportunities to upskill himself."

JI
Jaishri Iyengar

Product Owner and Business Analyst

PreludeSys

"It's rare that you come across standout talent like Sandeep. He does not hesitate to learn new things and adapt to rapidly changing technology trends. Sandeep is also a great mentor and has shaped the lives of many interns as I have witnessed."

BG
Banish Gupta

Embedded and IoT Engineer

FlashBulb Technologies

"I had the privilege of collaborating with Sandeep for two years, and his leadership style truly sets the bar. His exemplary approach consistently boosted team morale, and in my view, he stands out as the top talent in the Android department. Sandeep's innovative thinking, strong organizational skills, and willingness to help others are commendable."

MA
Monika Arora

Sr. Android Developer

Ameba Technologies

Got something interesting?
Let's talk.

Open to senior engineering roles and AI consulting. If you're building something hard and need someone who has actually shipped at scale, reach out.