Microservices
Event-driven Spring Boot microservices that auto-scale with traffic, deployed across AWS, GCP and beyond.
Enterprise Java & AI Engineering
Modernise your applications with state-of-the-art AI, scaling, resilience & observability.
By leveraging the power of artificial intelligence, we simplify processes, sharpen decision-making and deliver intelligent automation that reduces complexity and elevates performance.
Engineered with
Java 17+Spring BootApache KafkaAWS · GCP
01 What We Do
Solutions engineered for your business
From event-driven microservices to AI integration and cloud-native delivery — the engineering capabilities that move your business forward.
Command-Line Tools
Purpose-built CLI tools for continuous polling, reporting, data analysis and hands-off automation.
AI Applications
Bring AI intelligence to your Java applications with Spring AI — OpenAI or in-house, pre-trained GPTs.
Data Migration
Move massive datasets systematically between sources, with custom conversion powered by Apache Spark.
Cloud & DevOps
Seamless integration, deployment and management of cloud solutions — AWS, GCP, Azure and DigitalOcean.
UI / UX Design
Visually refined, user-friendly interfaces that elevate every digital experience.
QA & Testing
Rigorous quality assurance and testing that guarantees software reliability and performance.
Digital Engineering
Cutting-edge digital solutions, engineered to meet your most demanding challenges.
02 Technology Expertise
The stack we engineer with
AWS ServicesJava 17+Apache KafkaMicroservicesSQL DatabasesElasticsearchArtificial IntelligenceApache SparkPythonReactDockerSpring BootKubernetes
03 Our Services
Backend engineering, end to end
A full range of backend development services for your enterprise — from high-performance Java APIs to scalable, fault-tolerant microservices architecture.
01
Java Backend Development
High-performance APIs built on Spring Data, Hibernate and Java 17+.
02
Spring Boot Microservices
Independent, modular services with stronger fault tolerance and scalability.
03
Spring AI Integrations
Intelligent search, chatbot interfaces and AI-enhanced recommendations.
04
Cloud-Native Deployments
Docker, Kubernetes, AWS and GCP — fast, secure, resilient infrastructure.
05
API Integration & Automation
Connect external services, manage workflows and streamline operations.
OrderService.java
@RestController@RequestMapping("/api/orders")public class OrderService { // AI-assisted, auto-scaling @PostMapping public Mono<Order> place(OrderRequest r) { return ai.enrich(r) .flatMap(orders::save) .doOnNext(events::publish); }}
04 Why Choose Us
14 years of backend engineering depth
With over 14 years of experience in backend development, our team brings deep expertise in Java and microservices architecture. We design Spring Boot microservices that are modular, efficient and easy to maintain, and apply Spring AI to power GPT- and LLM-driven workflows. From Kafka-based event-driven systems to cloud-native deployments on AWS and GCP, we deliver end-to-end engineering with a focus on quality, speed and transparency.
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Years of experience
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Projects delivered
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Client retention
Let's start working together and grow your business
Tell us where you want to go — we'll engineer the path to get there.
05 Contact
Let's build something together
Share a few details about your project and we'll get back to you within 24 hours.
Get in touch
Whatever your IT requirement — we have an offering for you.
Address
First Floor, B/14, Ramnagar Colony, Mohaddipur, Gorakhpur — 273008, Uttar Pradesh
Phone
Book a call
06 Industries
Industries we serve
Flexible engagement models that fit businesses of every size — from fast-moving startups to large enterprises.
E-commerce
AI-driven product search and personalised recommendations.
Finance
Event-driven microservices for real-time transaction processing.
Internal Tools
Smart automation that streamlines how your teams work.
Legacy Modernisation
Modernising legacy monolith systems for the cloud era.
Customer Support
AI chatbots for customer support and lead engagement.
A seamless, secure & future-ready foundation for your business
Leave your details and we'll get in touch within 24 hours.
07 Clients
What our Clients say, about us
“
Hello World Tech has been an outstanding partner for us over the last two years. They manage our proprietary order-processing platform with precision and reliability, and recently helped us build an AI-based sourcing platform called OptaAI that has transformed how we handle procurement. SPS and the team are responsive, expert, and genuinely invested in our success. Highly recommend!
Neel Patel
CFO · Optamark
“
SPS is an expert developer who is very efficient and extremely thoughtful. He gives the best code reviews and has the greatest attention to detail out of every developer I have worked with on Upwork. His part-time availability was a good match for our needs and it has been very beneficial to have him on the project.
John De Mott
d2 PAC
“
SPS is good at his work and completed our project in a very short time. Would recommend him highly, and we'll work with him if we have any more projects in Java.
Narendra Hiranandani
CEO · Enhira Software Limited
“
Hello World has been instrumental in building our proprietary File Comparison Tool.
Thomas G
Founder · JClass
“
Amazing tech solution, designed for us.
Solomon E
Founder · MasteringBackend