Spring ecosystem architecture
Designing Spring Boot services with clean boundaries, from microservices to Spring Modulith, with integrations that stay scalable and easy to extend.
BUILDING PRODUCTS
THAT ACTUALLY MATTER
A Java/Kotlin developer building scalable, production-ready services with Spring Boot and cloud-native infrastructure.
70k+
solar systems monitored across Hawaii
3+
years building Java and Spring services
4
energy platforms integrated in production
Ali Hassan
WHAT I CAN HELP WITH
API & integration engineering
Building secure REST, GraphQL, and gRPC APIs with Spring Security, JWT, OAuth2, validation, and predictable contracts for product teams.
Reliability & cloud delivery
Shipping Dockerized services on AWS with PostgreSQL, Redis, observability, automated workflows, and focused test coverage.
EXPERIENCE
June 2025 - Present
Java | Spring Boot | React Developer
Novatore Solutions
- Architected a microservice Solar Monitoring Platform integrating Tesla, Enphase, FranklinWH, and SolarEdge.
- Built role-based access control with Spring Security, JWT, and OAuth2.
- Automated billing: subscriptions, invoicing, and payments.
JavaSpring BootReactPostgreSQLRedisDockerAWS
May 2023 - June 2025
Java | Spring Boot Developer
IntelliCode
- Built Algoras Cloud ERP, microservices for finance, HR, payroll, and procurement.
- Delivered a ZATCA-approved e-invoicing platform for Saudi Arabia.
JavaSpring BootGradleHibernateMySQLRabbitMQJenkinsDocker
Feb 2023 - Apr 2023
Java Developer Intern
10Pearls
- Built a RESTful app with JWT auth and GitHub OAuth SSO.
- Wrote Spring Batch jobs for scheduled file imports and exports.
JavaSpring BootReactHibernatePostgreSQL
FEATURED WORK
Energy Tech
Solar Monitoring Platform
Microservice platform that streams real-time telemetry from Tesla, Enphase, FranklinWH, and SolarEdge systems.
Monitors 70k+ residential and commercial solar systems across Hawaii.
JavaSpring BootReactPostgreSQLAWS
View project ->Enterprise SaaS
Algoras Cloud ERP
Cloud ERP built on microservice architecture for finance, HR, payroll, projects, procurement, sales, and marketing.
Helped organizations streamline core business processes across departments.
JavaSpring BootHibernateMySQLRabbitMQ
View project ->FinTech
ZATCA E-Invoicing Platform
Secure enterprise e-invoicing and tax-compliance services for Saudi Arabia's ZATCA requirements.
Supported integrated, compliant invoicing workflows for enterprise customers.
JavaSpring BootGradleDockerJenkins
View project ->THE TOOLBOX
Java
Kotlin
Spring Boot
Spring Modulith
Spring Security
JWT
OAuth2
Hibernate
PostgreSQL
MySQL
Redis
RabbitMQ
React
Material UI
Maven
Gradle
Docker
AWS
Grafana
Prometheus
Jenkins
REST
GraphQL
gRPC
Microservices
JUnit
CLIENT SIGNAL
“Ali turns vague backend problems into calm, well-tested systems. He communicates clearly and ships without drama.”
Maya Chen
Product Lead, SaaS Platform
“The payment service Ali designed gave our team confidence. Incidents dropped and deploys became boring again.”
Daniel Brooks
Engineering Manager, Fintech
Start here
Let's build something your users can trust
Tell me what you're trying to ship, fix, or scale.
se.ali.hassan01@gmail.com