Nikhil Saji

Backend engineer with 2+ years building scalable SaaS APIs in Go and Python.

2+ Years ExperienceMS Computer Science • University at BuffaloOpen to Relocation

30,000+

Recipes automated with AWS workflows

25%

Faster PostgreSQL response time after query optimization

90%

Invoice deadline prediction accuracy in ML workflow

Profile Picture

I am a backend-leaning software engineer with 2+ years of industry experience building APIs, automation workflows, and data-driven systems across logistics and content platforms.

My recent work spans Go, FastAPI, PostgreSQL, AWS Lambda, and Docker, where I have shipped features that reduced response times, removed manual bottlenecks, and improved operational efficiency.

I am currently pursuing an MS in Computer Science at the University at Buffalo, while continuing to build full-stack products that combine reliable backend architecture with practical user-focused design.

Experience

2+ years

Software engineering across internships and full-time backend roles.

Core Stack

Go • Python • PostgreSQL

FastAPI, Spring Boot, PostgreSQL, AWS, Docker, and production REST/gRPC APIs.

Education

MS + B.Tech in CS

University at Buffalo (MS, GPA 3.78) and SRM University (B.Tech, CGPA 9.67).

Software Engineer Intern

Holiday Channel

Location:Colorado, US

Holiday Channel logo
May 2025 - August 2025

Contributed to automating large-scale content workflows by developing tagging and image handling scripts (30,000+ recipes, 3,000+ images), building backend APIs for internal tools, and resolving production frontend bugs—improving efficiency across engineering and product teams.

Software Developer Engineer

Wiz Freight

Location:Chennai, India

Wiz Freight logo
July 2022 - July 2024

Developed and led the backend architecture of a SaaS product for a logistics company, driving key feature implementations to enhance efficiency and scalability. Utilized Golang, PostgreSQL, and cloud tools like AWS, Docker, and Kubernetes to optimize performance. Led a team, streamlining operations and ensuring seamless deployment of critical features.

Software Developer Engineer Intern

Wiz Freight

Location:Chennai, India

Wiz Freight logo
March 2022 - July 2022

As a backend intern, developed scalable data storage solutions for airport and liner information, enhancing retrieval efficiency. Built and integrated RESTful APIs using GORM and GIN, improving system modularity. Optimized PostgreSQL queries, reducing response times by 25%.

Programmer Analyst Intern

Cognizant

Location:Chennai, India

Cognizant logo
January 2022 - March 2022

Analyzed large datasets, identifying key trends and insights that informed business strategies, improving decision-making and boosting operational efficiency by 15%. Spearheaded data-driven initiatives, driving process optimizations that streamlined workflows across multiple departments. Collaborated with cross-functional teams to implement solutions that enhanced data accuracy and reporting.

Developer Intern

Prograd

Location:Remote

Prograd logo
September 2021 - December 2021

Mentored peers, providing guidance and support throughout their learning journey. Identified and resolved code issues, leading to a 35% improvement in application performance and a reduction in bugs. Collaborated with senior developers to implement best coding practices, contributing to overall project quality.

Data Analyst Intern

HighRadius

Location:Remote

HighRadius logo
May 2021 - June 2021

Developed a B2C invoice generation application using Python, along with HTML, CSS, and JavaScript for the frontend. Processed large datasets to predict invoice deadlines with 90% accuracy. Optimized the prediction model by 15% using logistic regression and decision tree techniques, improving forecasting accuracy.

Expensely preview
Expensely
Expense tracking platform with secure auth, real-time visual analytics, and a clean finance workflow experience.
Next.jsJavaPostgreSQL
University Portal preview
University Portal
Full-stack university management app for course handling, enrollment flow, and robust professor-student operations.
ReactGolangPostgreSQL
MDP-Based RL: SARSA & N-Step Q preview
MDP-Based RL: SARSA & N-Step Q
Reinforcement learning environment with on-policy and off-policy methods, convergence analysis, and policy stability insights.
PythonGymnasiumRL
Neural Networks: Custom + VGG-13 preview
Neural Networks: Custom + VGG-13
Built and optimized custom neural architectures, integrating VGG-13 for grayscale alphabet and number classification.
TensorFlowDeep LearningComputer Vision
CPPChat preview
CPPChat
Lightweight terminal-based C++ chat app with WebSockets for efficient real-time multi-client communication.
C++WebSocketsNetworking
Bird Flock Simulation preview
Bird Flock Simulation
Simulated 3D flocking behavior in PySpark and implemented efficient distributed computations for model evolution.
PySparkSimulationParallel Computing
Todo App preview
Todo App
React productivity app with add/edit/delete workflows and completion tracking for fast daily planning.
ReactJavaScriptUI
Weather App preview
Weather App
Real-time global weather app powered by OpenWeatherMap with a Node.js backend hosted on AWS Lambda.
ReactNode.jsAWS Lambda

APIs, services, and backend architecture

Tools

6
GolangPythonJavaSpring BootREST APIgRPC

Interactive and performant user interfaces

Tools

6
ReactNext.jsJavaScriptTypeScriptTailwind CSSRedux Toolkit

Data processing, modeling, and ML workflows

Tools

6
PandasNumPyScikit-learnTensorFlowPySparkOpenCV

Deployment, infrastructure, and CI/CD tooling

Tools

6
DockerKubernetesAWSGitHub ActionsJenkinsGit

Transactional and scalable data storage

Tools

3
PostgreSQLMySQLMongoDB

Let’s build something meaningful together.

Open to software engineering opportunities and product-focused backend work. Reach out and I’ll get back quickly.

Email: [email protected]

Location: New York

Roles: Software Engineer / Backend Engineer