Ujjal Das

Software Engineer

Bengaluru, Karnataka, India6 yrs experience

Highly StableMost Likely To Respond

Key Highlights

Expert in building scalable, high-performance backend systems.
Strong experience with cloud infrastructure and CI/CD practices.
Passionate about leveraging AI for workflow automation.

Stackforce AI infers this person is a Backend-heavy Fullstack Engineer with expertise in scalable systems and cloud technologies.

Contact

ujjal.contact@gmail.com LinkedIn

Skills

Core Skills

Full-stack DevelopmentBackend DevelopmentCloud ComputingBig DataData AnalysisMachine LearningImage Processing

Other Skills

Amazon Web Services (AWS)Android DevelopmentCCascading Style Sheets (CSS)Collaborative Problem SolvingConvolutional Neural Networks (CNN)Data ScienceData StructuresDeep LearningDigital Image ProcessingElectrical EngineeringGo (Programming Language)Google Cloud Platform (GCP)Graphical User Interface (GUI)HBase

About

I'm a backend focused full-stack engineer with 6 years of experience, currently working at Deliveroo with a strong focus on backend development. I specialise in building scalable, high-performance systems with deep expertise in Go, Python, AWS, messaging queues (like Kafka), big data platforms, and modern web frameworks such as Next.js and React. I'm particularly passionate about designing systems that handle real-world scale and complexity. Whether it's architecting distributed applications, optimising backend performance, or automating cloud infrastructure, I enjoy solving challenging engineering problems and delivering practical, impactful solutions. I'm also deeply interested in AI and large language models (LLMs), and I enjoy exploring how they can be leveraged to automate workflows, enhance productivity, and build smarter systems. Always eager to learn, collaborate, and contribute to systems that make a meaningful difference.

Experience

6 yrs

Total Experience

2 yrs 7 mos

Average Tenure

9 mos

Current Experience

Ebay

Member of Technical Staff

Sep 2025 – Present · 9 mos · Hybrid

Deliveroo

L4 Software Engineer

Aug 2023 – Aug 2025 · 2 yrs · Hybrid

As a Full Stack Developer, I build and maintain scalable web applications using React, Next.js, and Golang. I design RESTful APIs, manage AWS infrastructure, and optimize performance across both the front end and back end. I collaborate with teams, ensure security and testing best practices, and leverage CI/CD pipelines for efficient deployment.

Amazon Web Services (AWS)TypeScriptGo (Programming Language)Node.jsReact.jsRuby on Rails+3

Goldman sachs

3 roles

Senior Software Engineer

Promoted

Dec 2022 – Aug 2023 · 8 mos

Developing a new cloud-based platform from scratch to support the firm’s all trading activities. My role is to develop new backend services, seamlessly integrating them with existing legacy trading systems to facilitate crucial financial calculations such as risk assessment and pricing.
In addition to writing code for the team, I have taken on various responsibilities such as mentoring new team members, conducting thorough reviews of pull requests and technical specifications, and actively participating in discussions regarding technology and product enhancements.

Spring BootProtobufJavagRPCGoogle Cloud Platform (GCP)Backend Development+1

Member of FICC Developer Training Group

Mar 2022 – Jul 2023 · 1 yr 4 mos

Responsible for organizing sessions on different technical topics and team-building activities like hackathons for the developers from FICC engineering.

Software Engineer

May 2020 – Dec 2022 · 2 yrs 7 mos

Utilized the Hadoop tech stack to develop advanced analytical models for surveillance purposes, enabling the monitoring of trading activities and detection of suspicious market behaviours such as insider trading and wall crossing.
Played a pivotal role in assisting the firm in identifying and detecting unusual market activities during the high‑volume period of the COVID‑19 pandemic, contributing to the overall risk management efforts.
Automated numerous legacy processes, resulting in significant annual savings of over 1800+ man‑hours.

SoftwareProtocol BuffersJavagRPCMapReduceBig Data+2

Byer

Co-Founder

Aug 2019 – May 2020 · 9 mos · Bhubaneswar, Odisha, India

Successfully developed a full‑stack e‑commerce website from scratch, utilizing Node.js, JSX, CSS, jQuery, Bootstrap, Redis, MySQL etc.
Developed an Android application with equivalent functionalities to the website, ensuring seamless user experience across platforms.
Demonstrated leadership skills by recruiting, training, and supervising interns to contribute effectively to the growth of the startup.

Android DevelopmentFull-Stack Development

Pnb metlife india insurance co. ltd

Machine Learning Engineer

May 2019 – Jul 2019 · 2 mos · Mumbai, Maharashtra, India

Designed and implemented an image processing pipeline to incorporate robust masking techniques, effectively safeguarding sensitive areas of KYC documents in strict adherence to regulatory requirements.
Developed a deep learning model to extract essential data from KYC documents, enabling accurate classification and reconciliation against the database entries.

Convolutional Neural Networks (CNN)SoftwareDeep LearningMachine LearningImage ProcessingPython (Programming Language)

Indian institute of technology, guwahati

Summer Intern

May 2018 – Jul 2018 · 2 mos · Dispur, Assam, India

developed and evaluate an algorithm for separating Multispeaker audio from single speaker audio using Non-Negative matrix multiplication and Machine Learning. The whole project is coded in MatLab under the guidance of Dr. Prithwijit Guha, Department of Electronics and Electrical Engineering, IIT Guwahati.

Vasitars pvt. ltd.

Summer Internship

Apr 2017 – Oct 2017 · 6 mos · Bhubaneshwar, Odisha, India

automating a mechanism for producing multisensory (4D olfactory effect)experience with optimal rate and correct proportion of odor diffusion to mitigate the real-life scenario using raspberry-pi, python and ultra-sonic diffusers in a closed space (for example movie theaters).Tested the system in a 10X10 ft room with a capacity of two people.

Software