Md Najim Ahmed
Verified Expert in Engineering
Software Developer
Kuala Lumpur, Malaysia
Toptal member since May 8, 2023
Ahmed is a Java, AWS, and relational database specialist with 9+ years of experience working with companies worldwide, including Fortune 500s with 100+ engineers on 20+ IT teams. He honed his skills by collaborating with diverse teams and holds four AWS and one Kubernetes certification. He is passionate about positively impacting the software industry.
Portfolio
Experience
- REST APIs - 9 years
- Amazon Web Services (AWS) - 7 years
- Spring Boot - 6 years
- Java - 6 years
- PostgreSQL - 5 years
- Leadership - 3 years
- Kubernetes - 2 years
- Apache Kafka - 1 year
Availability
Preferred Environment
Java, Amazon Web Services (AWS), Apache Kafka, PostgreSQL, Redis, Elasticsearch, Spring Boot, Spring Cloud
The most amazing...
...solution I've developed automates transport scheduling and handles replenishment for a Fortune 500 company from the oil and gas industry.
Work Experience
Tech Lead
Petronas
- Designed and led a team of 10+ to automate tanker scheduling, reducing replenishment and scheduling 500+ tankers to deliver 5,000+ orders across 20,000+ locations in Malaysia.
- Designed and developed a digital asset declaration system for 40,000 users and implemented encryption to protect data access and Privileged Identity Management (PIM) using Azure Active Directory (Azure AD) to ensure security.
- Contributed to the back end of an enterprise optimization dashboard that integrates 1,000+ data sources.
Senior Software Engineer
Bitfountain
- Designed and developed the back end of an IOT-based mobile application that gives users fine-grained control over their home air conditioners, such as access control on certain operations, view usage analytics, etc.
- Designed and developed the back end of an IVR-based crowdsourced customer support platform with a team of four engineers that matches customer support calls with matter experts.
- Created and implemented a routing algorithm to distribute clients among the subject matter experts to the caller based on their IVR navigation path in real-time using Redis.
Full-stack Software Engineer
Cefalo
- Developed a tool for photojournalists that enables them to upload photos directly from their camera to the cloud and access and edit the photos on the platform, manage and share them with others, and search them with 50+ IPTC fields and custom tags.
- Implemented an API to efficiently retrieve data from Redis, PostgreSQL, and Elasticsearch and delivered the data to the UI.
- Implemented UI to enable users writing JavaScript to write custom logic on extracting resources from 3rd-party data sources and execute those JavaScript safely within a Java API using Nashorn.
Full-stack Software Engineer
Jahtoe Technology Canada
- Developed a platform for data scientists that enables them to perform sentiment analysis on millions of customers' feedback and complaints on the status of the properties spread across North America.
- Designed and developed a parallel batch processing solution to perform sentiment analysis on different inputs concurrently, reducing overall runtime by 30%.
- Implemented a real-time view of the job progress using WebSocket (SignalR), synchronizing outputs from different threads.
- Developed a custom user interface using AngularJS to enable data scientists to manage the resources required to run sentiment analysis NLP jobs.
Full-stack Software Engineer
Secure Link Services
- Developed a social media application for musicians for 10,000 DAUs worldwide.
- Designed and developed a DSL similar to SQL to reduce the number of GET endpoints in the back-end services by 60%.
- Implemented pub/sub architecture in a social network app using RabbitMQ to fan out updates within users' networks to reduce news feed loading time by 70%.
Experience
The World's Only AI Sound Matching
https://jamahook.com/Education
Bachelor's Degree in Computer Science
Jahangirnagar University - Savar, Dhaka, Bangladesh
Certifications
CKAD: Certified Kubernetes Application Developer
The Linux Foundation
AWS Certified SysOps Administrator – Associate
Amazon Web Services Training and Certification
AWS Certified Developer – Associate
Amazon Web Services
Verified International Academic Qualifications
World Education Services
AWS Solutions Architect Associate
Amazon Web Services Training and Certification
AWS Certified Cloud Practitioner
Amazon Web Services Training and Certification
Skills
Libraries/APIs
REST APIs, React
Tools
RabbitMQ
Languages
Java, Go, C++
Frameworks
Spring Boot, AngularJS
Platforms
Amazon Web Services (AWS), Kubernetes, Apache Kafka, Twilio
Storage
PostgreSQL, Redis, Elasticsearch, MongoDB, MySQL
Paradigms
Object-oriented Analysis & Design (OOAD)
Other
Data Structures, Algorithms, Spring Cloud, Solution Architecture, Leadership, Networks, Software Engineering, WebSockets
How to Work with Toptal
Toptal matches you directly with global industry experts from our network in hours—not weeks or months.
Share your needs
Choose your talent
Start your risk-free talent trial
Top talent is in high demand.
Start hiring