⚡ Backend systems should not become fragile over time; they must stay maintainable, scalable, and reliable as products grow. I am a Backend Engineer specializing in Java, Kotlin, and Spring Boot, focused on building production-grade systems where clean architecture, long-term maintainability, and stability are critical. I combine strong backend engineering practices with practical system design to create APIs and services that remain easy to extend, debug, and operate in real-world environments. Clients work with me when system quality, clean code, and scalable backend architecture matter, not just feature delivery. 🏆 Proven Engineering Approach ✔ Clean, maintainable backend architecture ✔ Production-focused development mindset ✔ Long-term scalability and reliability focus ✔ Clear communication and structured collaboration 🚀 Core Capabilities ☕ Backend Engineering with Java & Kotlin • Spring Boot application development • REST API design & implementation • Business logic architecture • Secure and maintainable backend systems • Performance-focused backend development 🏗 Scalable System Architecture • Microservice-based architectures • Modular and maintainable code structure • Service communication patterns • Production-ready backend design • Reliability and scalability optimization 🗄 Database & Persistence Engineering • PostgreSQL, MySQL, MongoDB • Hibernate / JPA / Spring Data JPA • Query optimization & data modeling • Relational and NoSQL database design ⚙ Development & DevOps Workflow • Docker-based environments • Git-based development workflows • Unit & integration testing • CI/CD-friendly project structures 🔍 Engineering Focus 🏢 Enterprise & Business Platforms Scalable APIs • backend services • maintainable systems 🚀 Startup Products & SaaS Platforms Fast iteration • clean architecture • long-term scalability 💡 Engineering Mindset • Architecture-first thinking • Clean and understandable code • Simplicity over over-engineering • Production reliability focus • Ownership from development to deployment • Long-term maintainability mindset 🧰 Technical Stack Java • Kotlin Spring Boot • Spring MVC • Spring Data JPA REST APIs • Microservices PostgreSQL • MySQL • MongoDB Hibernate • JPA Docker • Git ✨ Why Clients Choose Me ⭐ Clean and maintainable backend architecture ⭐ Scalable production-ready systems ⭐ Strong Java & Kotlin expertise ⭐ Clear communication & accountability ⭐ Reliable engineering mindset 🚀 Ready to Build Stable, Scalable Backend Systems? If you need a backend engineer who cares about clean architecture, maintainable systems, and production reliability, I am ready to help. Let us build backend systems that stay reliable, scalable, and easy to maintain long after launch.

⭐ Designed and implemented systems handling 10,000+ requests per second. ⭐ Played a key role in a tech stack migration that resulted in annual savings of up to $450,000 for the client. ⭐ Delivered the client's flagship product ahead of schedule, resulting in faster time-to-market and a competitive advantage. ⭐ Improved performance by analyzing query plans and optimizing slow queries. Over 15 years of experience in software development, with 5+ years specializing as a Solution Architect. Expertise in Java and the Spring Framework as the primary technology stack, with extensive hands-on experience and a deep passion for Java development. ✅ Skilled in developing technical roadmaps, making critical technical decisions, system design, project estimation, and effective stakeholder communication. ✅ Languages: Java 8-21, JavaScript, TypeScript, Python. ✅ Spring Ecosystem: Spring Boot, Spring MVC, Spring Data JPA, Spring Security, Spring Cloud (Config, Gateway, Eureka), Spring WebFlux. ✅ ORM: Hibernate, EclipseLink, MyBatis. ✅ Message Brokers: RabbitMQ, Google Cloud Pub/Sub, Apache Kafka, IBM MQ, ActiveMQ. ✅ Databases: Oracle, Microsoft SQL Server, PostgreSQL, MySQL, MongoDB, Firebase, Cassandra, Aerospike, Redis, ElasticSearch. ✅ Strong background in Fintech, Social Networks, Logistics & Transportation, and Tourism & Hospitality industries.

𝗝𝗮𝘃𝗮 𝗕𝗮𝗰𝗸𝗲𝗻𝗱 𝗗𝗲𝘃𝗲𝗹𝗼𝗽𝗺𝗲𝗻𝘁 🖥️, 𝗦𝗽𝗿𝗶𝗻𝗴 𝗕𝗼𝗼𝘁 🌱, 𝗠𝗶𝗰𝗿𝗼𝘀𝗲𝗿𝘃𝗶𝗰𝗲𝘀 🛠️, 𝗔𝗪𝗦 ☁️, 𝗥𝗘𝗦𝗧 𝗔𝗣𝗜𝘀 🔗 I help businesses build scalable, secure, and high performance backend systems that handle growth without slowing down. Most applications work well in the beginning. The problems start when traffic increases. APIs become slow, deployments become risky, and maintaining the code becomes expensive. That's where I come in. 𝗔𝘀 𝗮 𝗦𝗲𝗻𝗶𝗼𝗿 𝗝𝗮𝘃𝗮 𝗗𝗲𝘃𝗲𝗹𝗼𝗽𝗲𝗿 𝘄𝗶𝘁𝗵 𝟭𝟯+ 𝘆𝗲𝗮𝗿𝘀 𝗼𝗳 𝗲𝘅𝗽𝗲𝗿𝗶𝗲𝗻𝗰𝗲, I've helped startups and enterprise companies design, build, and optimize backend systems that scale reliably in production. I am not just a Java Developer who writes code. I help businesses create backend architectures that support growth, improve performance, and reduce technical debt. 𝗥𝗲𝘀𝘂𝗹𝘁𝘀 𝗜'𝘃𝗲 𝗗𝗲𝗹𝗶𝘃𝗲𝗿𝗲𝗱 • Built scalable Java Developer solutions serving thousands of daily users with high availability. • Designed Microservices architectures that reduced deployment risks and improved system reliability. • Developed Spring Boot applications that improved API response times and backend performance. • Helped businesses migrate legacy systems into modern Java Developer architectures. • Delivered production ready backend platforms for startups and enterprise organizations. Every project starts with a business goal and ends with measurable results. 𝗪𝗵𝗮𝘁 𝗜 𝗗𝗼 𝗝𝗮𝘃𝗮 𝗗𝗲𝘃𝗲𝗹𝗼𝗽𝗺𝗲𝗻𝘁 • Custom backend application development • Enterprise Java solutions • Legacy application modernization • Backend performance optimization • Secure and maintainable architecture 𝗦𝗽𝗿𝗶𝗻𝗴 𝗕𝗼𝗼𝘁 𝗗𝗲𝘃𝗲𝗹𝗼𝗽𝗺𝗲𝗻𝘁 • REST API development • Spring Security • Spring Data JPA • Authentication and authorization • Scalable backend services 𝗠𝗶𝗰𝗿𝗼𝘀𝗲𝗿𝘃𝗶𝗰𝗲𝘀 𝗔𝗿𝗰𝗵𝗶𝘁𝗲𝗰𝘁𝘂𝗿𝗲 • Distributed systems design • Service decomposition • API Gateway implementation • Event driven architecture • System scalability and resilience 𝗔𝗪𝗦 𝗖𝗹𝗼𝘂𝗱 𝗦𝗼𝗹𝘂𝘁𝗶𝗼𝗻𝘀 • AWS deployment and infrastructure • EC2, ECS, Lambda • Cloud architecture design • Monitoring and optimization • Cost effective cloud operations 𝗥𝗘𝗦𝗧 𝗔𝗣𝗜 𝗗𝗲𝘃𝗲𝗹𝗼𝗽𝗺𝗲𝗻𝘁 • API design and implementation • Third party integrations • Payment gateway integration • Documentation and testing • Secure API architecture 𝗪𝗵𝗮𝘁 𝗠𝗮𝗸𝗲𝘀 𝗠𝗲 𝗗𝗶𝗳𝗳𝗲𝗿𝗲𝗻𝘁 Most Java Developers focus only on writing code. I focus on the business impact of the software. 𝗕𝗲𝗳𝗼𝗿𝗲 𝗯𝘂𝗶𝗹𝗱𝗶𝗻𝗴 𝗮𝗻𝘆𝘁𝗵𝗶𝗻𝗴, 𝗜 𝗮𝘀𝗸: • Will this architecture still work when traffic grows? • Can future developers maintain it easily? • Is it secure? • Is it optimized for performance? • Can it scale without major rewrites? This approach helps clients avoid costly problems later. 𝗪𝗵𝗼 𝗜 𝗪𝗼𝗿𝗸 𝗕𝗲𝘀𝘁 𝗪𝗶𝘁𝗵 • Startups building new SaaS products • Businesses scaling existing applications • Companies modernizing legacy Java systems • Teams adopting Microservices architecture • Organizations migrating workloads to AWS • Businesses needing secure and scalable REST APIs 𝗧𝗲𝗰𝗵𝗻𝗼𝗹𝗼𝗴𝗶𝗲𝘀 Java, Spring Boot, Spring Security, Hibernate, JPA, Microservices, AWS, Docker, Kubernetes, REST APIs, Kafka, RabbitMQ, PostgreSQL, MySQL, MongoDB, Redis, Maven, Gradle, Git, CI/CD, Jenkins 𝗪𝗵𝘆 𝗖𝗹𝗶𝗲𝗻𝘁𝘀 𝗛𝗶𝗿𝗲 𝗠𝗲 • 13+ years of Java Developer experience • Clean, maintainable code • Scalable backend architecture • Strong communication • Reliable delivery • Long term technical thinking If you're looking for a Java Developer who understands both software engineering and business objectives, let's discuss your project. Send an invitation and I'll respond within a few hours. Keywords: Java Developer, Senior Java Developer, Java Backend Developer, Java Software Engineer, Spring Boot Developer, Spring Boot Expert, Java Application Development, Enterprise Java Developer, Java Web Services, REST API Developer, RESTful API Development, Backend Developer, Backend Engineer, Microservices Developer, Microservices Architecture, Distributed Systems, AWS Developer, AWS Cloud Engineer, Java AWS Developer, Docker, Kubernetes, Kafka, RabbitMQ, Hibernate, JPA, Spring Security, API Integration, Database Design, PostgreSQL, MySQL, MongoDB, Redis, SaaS Backend Development, Scalable Application Development, Cloud Native Applications, Java Consultant, Software Architecture, System Design, Enterprise Application Development, Performance Optimization, CI/CD, Jenkins, Maven, Gradle, Full Stack Java Developer.

I am a Senior Full‑Stack Java Developer with 12+ years of experience, delivering scalable and secure enterprise applications using Java, Spring Boot, and Microservices. I also leverage AI‑assisted development tools in my daily workflow to improve delivery speed, code quality, and maintainability. My expertise spans backend architecture, full‑stack development, cloud, integrations, and modern front‑end frameworks such as Angular and React. What I Do for Clients- Build and maintain enterprise‑grade Java applications Design and implement Microservices using Spring Boot and Spring Cloud Create responsive front‑end applications using Angular and React Integrate legacy systems and third‑party services using MuleSoft Improve performance, scalability, and system stability AI‑Assisted Development I use AI‑assisted development tools as part of my daily workflow to increase efficiency while maintaining full control over architecture and code quality. AI Tools: ChatGPT, Claude, GitHub Copilot, OpenAI APIs for AI‑assisted coding, reviews, automation, and rapid prototyping. Backend Development - Languages: Java, J2EE Core Java: OOP, Multithreading, Exception Handling, Data Structures Frameworks: Spring, Spring Boot, Spring MVC, Spring Security, Spring WS, Spring Cloud ORM & Persistence: Hibernate, JPA, JDBC Web Services: REST (JAX‑RS), SOAP (JAX‑WS), XML‑RPC Microservices Architecture: Spring Cloud, Netflix OSS, service discovery, load balancing, fault tolerance Messaging: Apache Kafka Front‑End Development Expertise Frameworks: Angular, AngularJS, React.js Web Technologies: HTML5, CSS3, SASS, Tailwind CSS JavaScript: JavaScript, jQuery, AJAX Databases: MySQL, PostgreSQL, Oracle, DB2, NoSQL Integration and Middleware MuleSoft for system and API integrations Secure API development with authentication and authorization Third‑party API and legacy system integration Cloud, DevOps, and Tools Cloud Platforms: AWS: EC2, Lambda, S3, Redshift, SageMaker, Cognito Azure: Virtual Machines, Blob Storage, Azure AD, Data Factory Containerization: Docker, Kubernetes Testing: JUnit, Mockito Version Control: Git, SVN, GitHub Tools: Eclipse, NetBeans, STS, VS Code, Postman, MySQL Workbench Hands‑on experience with EDI systems and AS400 (IBM i) to Java conversion, transforming legacy business logic into modern Java and Spring Boot applications with improved scalability and maintainability. Ready to collaborate? - Click “Hire Me” or send an invite, and let’s discuss how I can add value to your project Keywords Java Developer, Senior Java Developer, Full Stack Developer, Full Stack Java Developer, Backend Developer, Spring Boot Developer, Microservices Developer, Spring Cloud, Spring Security, REST API Developer, SOAP API Developer, Hibernate, JPA, Kafka Developer, MuleSoft Developer, Angular Developer, React Developer, MySQL, PostgreSQL, Oracle, NoSQL, Docker, Kubernetes, AWS , Azure , JUnit, Mockito, JasperReports, AI Assisted Development, GitHub Copilot

If your backend fails in production, it's not a code problem — it's an architecture problem. I build Java Spring Boot systems that handle real traffic, real security threats, and real scale. I'm Abel Adisu, a Senior Java Backend Engineer with 3+ years of professional experience building enterprise-grade microservices, secure APIs, and distributed systems for government institutions and financial organizations. My systems don't just pass unit tests — they operate under real institutional pressure, processing real government revenue and managing real court cases affecting real people. I specialize in Java Spring Boot microservices architecture, Keycloak OAuth2 security, Apache Kafka event-driven systems, Camunda BPM workflow automation, and cloud-native DevOps with Docker and Kubernetes. FLAGSHIP PROJECTS 🏛️ Ministry of Revenue Backend System Built and maintained a large-scale backend that automates national tax payment, compliance tracking, and revenue operations for the Ethiopian government. Technologies: Java Spring Boot, PostgreSQL, Keycloak, Spring Security. ⚖️ Amhara Region Integrated Court Management System Architected a Camunda BPM workflow platform that digitally connects Police → Prosecutors → Corrections → Courts across an entire region — eliminating manual case handling and dramatically reducing processing time. Technologies: Camunda BPM, Spring Boot Microservices, React, Docker. 🏦 Banking & USSD Backend Systems Developed secure backend services for mobile banking and USSD applications supporting live financial transactions for bank customers. Technologies: Java EE, Spring Security, MySQL. CORE TECH STACK Backend: Java 17+, Spring Boot, Spring MVC, Spring Cloud, Spring Security, Java EE, Hibernate/JPA, REST APIs Security & Identity: Keycloak, OAuth2, OIDC, JWT, RBAC, SSO Messaging & Distributed: Apache Kafka, RabbitMQ, Event-Driven Architecture Workflow Automation: Camunda BPM (complex multi-party business processes) Databases: PostgreSQL (optimization, tuning, partitioning), MySQL, zero-downtime migrations DevOps & Cloud: Docker, Kubernetes, CI/CD, GitHub Actions, Jenkins, API Gateway, Circuit Breakers Frontend: React, TypeScript, Tailwind CSS Testing: JUnit, Mockito, Selenium I don't take tickets and disappear. I own the backend — spotting architecture risks before they become production incidents, communicating clearly across time zones, and delivering systems that still run clean six months after handoff. If your project involves real users, real transactions, or real consequences — let's talk. #JavaDeveloper #SpringBoot #BackendDeveloper #Microservices #SoftwareArchitecture #EnterpriseJava #JavaSpringBoot #SpringSecurity #SpringCloud #RestAPIDevelopment #APIDevelopment #WebAPIDeveloper #Keycloak #OAuth2 #OIDC #JWT #RBAC #IdentityManagement #SSO #ApacheKafka #EventDrivenArchitecture #MessageBroker #RabbitMQ #DistributedSystems #CamundaBPM #WorkflowAutomation #BPMDeveloper #BusinessProcessManagement #PostgreSQLDeveloper #DatabaseOptimization #MySQLDeveloper #DatabaseMigration #Docker #Kubernetes #CloudNative #DevOps #CICD #GitHubActions #ContainerOrchestration #FinTechDeveloper #GovTech #EnterpriseSoftware #MissionCriticalSystems #HighPerformanceBackend #ScalableBackend #ProductionReady #SecurityEngineer #React #TypeScript #FullStackDeveloper #SystemDesign #TechEthiopia #AfricanDeveloper #RemoteBackendDeveloper #HireMeUpwork

👋 Hello, I'm Kashaf Shanawar! I’m a passionate Java & Angular Developer with expertise in building dynamic, scalable, and high-performing web applications. With over 2 years of hands-on experience, I specialize in designing and developing full-stack applications with robust Java Spring Boot backends and interactive Angular frontends. 💡 What I Offer: ✅ Full-Stack Development – Expertise in Java Spring Boot and Angular, ensuring seamless integration between backend and frontend. ✅ API Development & Integration – Proficient in creating and securing RESTful APIs. ✅ Database Management – Experienced with MySQL, PostgreSQL, and MongoDB for efficient data storage and retrieval. ✅ Authentication & Security – Implementing Spring Security & JWT for secure applications. ✅ Microservices Architecture – Developing scalable and distributed systems with Spring Boot microservices. ✅ Trading Systems Development – Worked on real-time trading platforms integrated with stock exchanges, handling market data, FIX protocols, and order management systems (OMS). 🛠 Tech Stack: Backend: 🔥 Java (JDK 8, 11, 17, 21) | Spring Boot | Spring Security | Hibernate (JPA) | REST APIs | Microservices | Kafka Frontend: ⚡ Angular | TypeScript | JavaScript | HTML5 | CSS3 Database: 📌 MySQL | PostgreSQL | MongoDB Tools & Platforms: 🚀 Git | Jira | Postman | Docker 💼 Work Experience: 🔹 Java Angular Developer | Softech Systems Limited (2023 – Present) Building scalable Java Spring Boot applications with REST APIs & microservices. Developing real-time trading platforms with Pakistan Stock Exchange (PSX) & Ghana Stock Exchange integration. Enhancing Order Management System (OMS) and implementing STOP/LOSS trading functionalities. Revamping the trading terminal using Angular for a smoother user experience. 🔹 Full Stack Java Angular Intern | Zin Technologies (2023) Developed full-stack applications with Java Spring Boot, Angular, and MySQL. Worked in Agile environments with Git and Jira for project management. 🔥 Why Hire Me? ✔ 100% Client Satisfaction – I prioritize delivering high-quality, well-structured, and efficient code. ✔ Deadline-Oriented – I ensure timely delivery while maintaining excellent code quality. ✔ Strong Problem-Solving Skills – I love challenges and always find innovative solutions. ✔ Effective Communication – Clear, proactive, and transparent communication for seamless project execution. ✔ Continuous Learner – Always eager to explore the latest technologies and best practices. 📩 Let’s Work Together! Looking for a reliable, detail-oriented, and skilled full-stack developer to take your project to the next level? Let's discuss how I can help! 📨 Message me now, and let's build something amazing together! 🚀

I’m a Senior Java Backend Engineer with 7+ years of experience building scalable SaaS platforms, enterprise applications, microservices, and cloud-native backend systems using Java, Spring Boot, Spring MVC, Hibernate, JPA, PostgreSQL, MySQL, AWS, Kafka, GraphQL, and REST APIs. I specialize in designing and developing high-performance backend systems with clean architecture, secure APIs, scalable microservices, and production-ready infrastructure. I have worked with startups, SaaS companies, fintech platforms, AdTech systems, privacy compliance platforms, and enterprise organizations to build applications that are scalable, secure, maintainable, and optimized for long-term growth. My expertise includes backend architecture, microservices development, API design, database optimization, cloud deployments, performance tuning, security implementation, system integration, and enterprise application modernization. 𝗠𝘆 𝗖𝗼𝗿𝗲 𝗘𝘅𝗽𝗲𝗿𝘁𝗶𝘀𝗲: ✔ Java Development ✔ Spring Boot & Spring MVC ✔ Microservices Architecture ✔ Multi-Tenant SaaS Platforms ✔ REST API Development ✔ GraphQL APIs ✔ Kafka & Event-Driven Systems ✔ PostgreSQL & MySQL ✔ Hibernate & JPA ✔ AWS Cloud Services ✔ Distributed Systems ✔ Secure Authentication & RBAC ✔ Backend Performance Optimization ✔ API Integrations ✔ Enterprise Application Development ✔ CI/CD Pipelines ✔ Jenkins, Maven & Gradle ✔ Database Design & Query Optimization ✔ Production Support & Maintenance ✔ Scalable System Architecture 𝗜𝗻𝗱𝘂𝘀𝘁𝗿𝗶𝗲𝘀 & 𝗣𝗹𝗮𝘁𝗳𝗼𝗿𝗺𝘀 𝗜 𝗛𝗮𝘃𝗲 𝗪𝗼𝗿𝗸𝗲𝗱 𝗢𝗻: • SaaS Platforms • AdTech & Programmatic Advertising • Digital Asset Management • Privacy & Compliance Systems • Fintech Applications • Enterprise Workflow Platforms • Business Process Automation • Reporting & Analytics Systems • Multi-Tenant Platforms • White-Label Solutions • CRM & Business Applications • Enterprise Admin Portals 𝗧𝗲𝗰𝗵𝗻𝗼𝗹𝗼𝗴𝗶𝗲𝘀 & 𝗧𝗼𝗼𝗹𝘀: • Java • Spring Boot • Spring MVC • Hibernate • JPA • JDBC • GraphQL • REST APIs • PostgreSQL • MySQL • Kafka • AWS • Jenkins • Maven • Gradle • Git & GitHub • Docker • Tomcat • Flyway • Snowflake Some of the notable platforms I have worked on include Adstrome (AI-powered DSP & SSP advertising platform), TrustArc (enterprise privacy compliance platform), Acquia DAM (digital asset management platform), and Digi-Docket (fintech workflow platform). Throughout my career, I have worked on: • Building and scaling microservices architectures • Designing secure enterprise APIs • Multi-tenant SaaS implementations • High-volume reporting and analytics systems • Event-driven backend architectures • Enterprise security and RBAC systems • Database performance optimization • Legacy system modernization • Cloud-based application deployments • Production issue resolution and performance tuning I also have hands-on experience solving complex backend challenges including: • Microservice migrations • Performance bottlenecks • Database optimization • Scalability issues • Distributed system design • API security implementation • Infrastructure modernization • Production debugging • System monitoring and reliability improvements Along with development, I have experience leading backend initiatives, mentoring developers, conducting code reviews, collaborating with cross-functional teams, and delivering enterprise software using Agile methodologies. Why clients work with me: ✔ Clean, scalable, and maintainable code ✔ Strong system design and architecture skills ✔ Enterprise SaaS and backend expertise ✔ Reliable communication and ownership ✔ Performance and scalability mindset ✔ Secure and production-ready implementations ✔ Long-term support and continuous improvement Whether you need to build a backend platform from scratch, architect a SaaS product, implement microservices, optimize performance, modernize an existing system, or scale your application for growth, I can help. Let’s build a scalable, secure, and high-performing backend platform for your business.

I am an experienced Senior Software Developer with a strong background in healthcare, fintech, and IoT solutions. I led the development of a real-time medical benefit and pharmacy verification system, integrating XML data from TransUnion and JSON from Surescripts, and created APIs for medical and prescription benefit checks using Spring WS, Spring Batch, and Angular. I also worked on smart home solutions, including a smart door lock system using Node.js, React.js, and Firebase. In fintech, I played a key role in launching Nepal’s first wallet system, integrating multiple banks for money transfers and enabling bill payments, as well as transitioning monolithic architectures to microservices. I have hands-on experience with tools like Kafka, ActiveMQ, Jenkins, and Vault, and have managed CI/CD pipelines with Kubernetes and GitLab Runner. Additionally, I’ve implemented secure authentication protocols, including SSO solutions using Okta, Auth0, and Google Auth, and have led several successful offshore projects in healthcare, real estate, and IoT.

Greetings! I have been working as a Java developer for more than 14 years, my main clients are from Europe, Israel, India, China and USA. I am developing both desktop software and web applications, RESTful microservices etc. You can safely entrust me with the work on your project and will never be disappointed in our cooperation, I can guarantee the high responsibility and quality of the tasks that I carry out, which you can be sure of when you take me to your team. Main skills: Java technologies: - Java 8, 9, 11, 17 - JavaFX - Zuul, Ribbon, Eureka - Spring: Core, MVC, Web-flow, Integration, Batch, Boot, Social, Data, Config - Quarkus - Maven 2/3, JUnit 4 - JMS: RabbitMQ, ActiveMQ - JDBC, Hibernate 3.x, Neo4j - ESB, JNDI, JSP - WebDriver - JHipster NodeJS development: assisting libraries: express, async, soap, log4js connectivity: mongodb, redis, stomp-client, socket-io testing, building: should, mocha, grunt deployment: PM2, npm publishing and related activities promises, some EcmaScript 6 thingies Front-end development: Angular HTML 5, CSS 3, JavaScript (ES 5/6) JQuery, Bootstrap Other: pug (jade) Datastores: MySQL, MongoDB, PostgreSQL Other: AWS, Google Cloud, Azure services: Compute Engine, Cloud Storage, Data Store, SQL regular usage of Linux-based systems (anything necessary to develop and support software) infrastructure: Jenkins, SVN, git - commit/push/pull level ActiveMQ, Camel Elasticsearch

📢 Available for new projects 📢 I'm a Senior Java Developer with more than 10 years of commercial experience building stable, scalable, and secure backend systems. I specialize in Spring Boot microservices and cloud-native architecture — and I've shipped production systems in Fintech, EdTech, Healthcare, Retail, Hospitality, etc. My core strength is backend architecture: clean APIs, event-driven systems, and services that scale. I also work across the full stack development when needed — React on the frontend, Node.js for integrations, and AWS for deployment and infrastructure. What I bring to your project: - Production-grade Spring Boot microservices and REST APIs - Cloud infrastructure on AWS with Docker and CI/CD pipelines - Full-stack capability: Java backend + React frontend - Relational and NoSQL databases: PostgreSQL, MySQL, MongoDB - Clean, maintainable code with TDD and Agile workflows I've worked on SaaS platforms, enterprise systems, and MVPs — from initial architecture through to deployment. Go-To Stack: Java (Spring Boot, Spring Cloud, Hibernate) · React · Node.js · AWS · Docker · PostgreSQL · MongoDB · Jenkins · GitFlow Ready to start - just drop me a message and we will start working!