You will get a full range of custom web development services
Project details
Struggling with slow response times, overloaded servers, or inefficient microservice architecture? At CodaShift, we specialize in performance optimization that goes beyond code tweaks ā we streamline your entire system. With over 10 years of experience scaling high-load applications across healthcare, finance, marketplaces, and AI-driven platforms, we bring a battle-tested methodology to accelerate your product.
Unlike generic freelancers, we act as your technical partner ā auditing your infrastructure, optimizing backend and database bottlenecks, modernizing deployments (e.g. EC2 ā ECS/Lambda), and implementing smart caching, async processing, and observability from day one.
What you get:
ā” Up to 3x faster response times across critical endpoints
š Reduced infrastructure costs via smart resource management
š§ Expert review of your current architecture, queries, and CI/CD
š§ Full-cycle implementation: audit ā optimization ā load testing
š Optional compliance (HIPAA-ready setup if needed)
š Transparent weekly reports and measurable impact
If you need a partner who doesn't just fix performance, but future-proofs your system ā we're ready to jump in.
Unlike generic freelancers, we act as your technical partner ā auditing your infrastructure, optimizing backend and database bottlenecks, modernizing deployments (e.g. EC2 ā ECS/Lambda), and implementing smart caching, async processing, and observability from day one.
What you get:
ā” Up to 3x faster response times across critical endpoints
š Reduced infrastructure costs via smart resource management
š§ Expert review of your current architecture, queries, and CI/CD
š§ Full-cycle implementation: audit ā optimization ā load testing
š Optional compliance (HIPAA-ready setup if needed)
š Transparent weekly reports and measurable impact
If you need a partner who doesn't just fix performance, but future-proofs your system ā we're ready to jump in.
Programming Languages
JavaScript, Java, TypeScriptCoding Expertise
Cross Browser & Device Compatibility, Performance Optimization, SecurityWhat's included
| Service Tiers |
Starter
$500
|
Standard
$2,500
|
Advanced
$15,000
|
|---|---|---|---|
| Delivery Time | 1 day | 14 days | 60 days |
Number of Revisions | 2 | 5 | Unlimited |
Number of Pages | 0 | 20 | 20 |
Design Customization | - | - | |
Content Upload | - | ||
Responsive Design | - | - | |
Source Code |
6 reviews
(6)
(0)
(0)
(0)
(0)
This project doesn't have any reviews.
IK
Ismail K.
Sep 23, 2025
Create the backend of a Car Rental Company Website and CMR (MVP)
Great to work with, has a lot of experience and we will definitely work together again.
IK
Ismail K.
Aug 18, 2025
Create the backend of a Car Rental Company Website and CMR (MVP)
I have had an excellent collaboration with Pavlo. He is highly skilled and possesses outstanding knowledge and experience in building projects completely from scratch. Working with him has been both smooth and productive, and I truly value his professionalism and expertise. I am confident that we will continue to collaborate on future projects, as his contribution has been incredibly valuable to our work.
DS
Dmitri S.
Apr 23, 2025
Data collecting tool using HTTP client to read API and save to Amazon RDS
Pavlo worked on creating and developing MySQL database on Amazon RSD. To populate the database an Amazon EC2 application was created to read data from a website using an API interface. Raw data was processed to create an additional light-weight data base for my project. Several controllers were programmed to update or make changes to the data. Pavlo used these for the project: Spring Boot, Spring Security, Amazon RDS, and Amazon EC2.
The programming languages used for the project are Java, MySQL and JSON as the data format for API calls and storage.
Also, all the required Amazon services needed for this project were started and configured by developer, so I didnāt personally have to do any of that. I must add that he was very helpful and responsive in explaining the details regarding the project and the way it was implemented. Overall, Iām very satisfied with the result and the skills of the developer.
The programming languages used for the project are Java, MySQL and JSON as the data format for API calls and storage.
Also, all the required Amazon services needed for this project were started and configured by developer, so I didnāt personally have to do any of that. I must add that he was very helpful and responsive in explaining the details regarding the project and the way it was implemented. Overall, Iām very satisfied with the result and the skills of the developer.
CS
Cavaco S.
Jan 25, 2025
Maven compiler issue
LG
Lukas G.
Jan 18, 2025
Fullstack Developer with AWS Experience, help with React for API
Great knowledge of AWS and Spring Boot. Thank you.
About Pavlo
Full Stack Java Spring Boot Developer | React | DevOps | AWS
100%
Job Success
Zagreb, CroatiaĀ - 5:28 am local time
My background includes Java based backend systems using Spring Boot, Spring MVC, and Spring Cloud, and in building modern fullstack apps with React. My work spans across healthcare, insurance, and automation platforms.
š What I Provide š¼
š¹ Complete development lifecycle: planning, coding, testing, deployment, and maintenance
š¹ AWS and Java certified expertise
š¹ Implementation of DevOps practices and CI/CD pipelines
š¹ Cloud cost-efficiency strategies
š¹ Application performance enhancement
š¹ Rapid MVP development to bring your concept to life
š Why Collaborate with Me š¤
š¹ 10+ years of hands-on experience in Java and DevOps engineering
š¹ Specialized knowledge in domains like Healthcare and AdTech
š¹ Strong commitment to high code quality and reliability
Fullstack / Frontend Capabilities āļø
As a Full Stack Java Spring developer, I build engaging and scalable applications by integrating modern frontends - React.js, Next.js, and Vue.js - with robust Spring Boot and Java-based backends. I follow fullstack best practices and deliver clean UI using HTML, CSS, and Tailwind CSS.
Back End Expertise āļø
Working with Java since version 6 through 21, I utilize frameworks such as Spring Boot, Spring MVC, Spring Cloud, Spring Batch and Spring Security to build scalable services.
DevOps & AWS Experience āļø
With 8+ years in AWS environments and certifications in both DevOps Architecture and Development, I specialize in serverless and containerized solutions using AWS Lambda, Docker, Kubernetes, RDS, and Landing Zone - ensuring scalability and zero-downtime deployments.
Database Skills š¾
Iām proficient in relational databases like PostgreSQL, MySQL, and SQL Server. Also skilled with NoSQL systems including Redis, MongoDB (DocumentDB), Aerospike, DynamoDB, and OpenSearch (ElasticSearch). For analytics, I work with Amazon Redshift.
API Integration š
Skilled in REST, SOAP, Swagger, and OpenAPI 3 for seamless service integration.
Performance Tuning š
Utilizing tools like JMeter, Gatling, AWS X-Ray, and JProfiler to optimize speed and resource usage.
Messaging Systems āļø
Experienced in asynchronous communication with Apache Kafka, Amazon SQS/SNS, and RabbitMQ.
Desktop GUI Development š„ļø
Developing sleek and functional desktop interfaces with JavaFX and FXML.
Letās connect and talk about your goals! š
Steps for completing your project
After purchasing the project, send requirements so Pavlo can start the project.
Delivery time starts when Pavlo receives requirements from you.
Pavlo works on your project following the steps below.
Revisions may occur after the delivery date.
Quick Call. Tech Deep Dive. Tailored Plan