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I am a Senior Solution Architect and hands-on Full-Stack Engineer with 13+ years of experience helping startups and enterprises transform business requirements into scalable, secure, cloud-native, and AI-enabled applications. My core expertise is Java, Spring Boot, Microservices, AWS, and enterprise architecture, complemented by modern technologies including React, Next.js, Angular, Node.js, NestJS, FastAPI, and Python. I can support the complete software lifecycle: Requirements → Solutioning → Architecture → Technology Selection → Development → Cloud → Production Solution Architecture & Solutioning: I translate business and technical requirements into practical, scalable solutions, covering: Solution and System Architecture: - Technology Stack Selection - API and Integration Design - Database Architecture - Cloud Architecture - Scalability and Performance Planning - Security and Reliability - Application Modernization - Technical Feasibility and Roadmap I select the technology stack based on the business problem, scalability, performance, security, budget, timeline, and long-term product roadmap. Java & Enterprise Development: - Java 8–21 - Spring Boot: Spring AOP, Spring Cloud, Spring Security, Spring Data JPA, Spring Batch - Micronaut - REST and gRPC - Microservices - Event-Driven Architecture - Apache Kafka - RabbitMQ - AWS SQS - Reactive Programming Modern Full-Stack Development: - MERN — MongoDB, Express.js, React, Node.js - MEAN — MongoDB, Express.js, Angular, Node.js - React.js / Next.js - Angular / Vue.js - Node.js / NestJS / Express.js - Python / FastAPI / Django - TypeScript / JavaScript - PostgreSQL / MySQL / MongoDB / Redis / DynamoDB Application Modernization: I help organizations modernize legacy applications and improve scalability, maintainability, security, and developer productivity. Typical modernization initiatives include: - Legacy Java → Spring Boot - Legacy UI → React / Angular / Next.js - Monolith → Modular Monolith / Microservices - On-Premise → AWS - Traditional Applications → Cloud-Native Architecture - Legacy APIs → REST / gRPC - Manual Deployment → CI/CD - Existing Applications → AI-enabled Applications AWS & Cloud-Native: Strong hands-on experience with AWS services including: EC2, ECS, EKS, Fargate, Lambda, API Gateway, S3, RDS, DynamoDB, SQS, SNS, EventBridge, CloudWatch, IAM, VPC Infrastructure and DevOps: Docker, Kubernetes, Terraform, CloudFormation, AWS CDK, Jenkins, GitHub Actions, GitLab CI/CD AI-Enabled Applications I help integrate AI into real-world business applications using: - Amazon Bedrock - LangChain - LangGraph - LangSmith - RAG - MCP - Agentic AI - CrewAI - Vector Databases - pgvector - ChromaDB - n8n Use cases include AI Assistants, Enterprise Search, RAG, Document Intelligence, AI Agents, Workflow Automation, and Decision Support. I use AI to accelerate development and automate workflows while keeping critical business decisions under appropriate human control. Security, Observability & Testing: Security: OAuth 2.0, JWT, SSO, RBAC, LDAP, OWASP Observability: Datadog, Prometheus, Micrometer, Grafana, Elasticsearch, OpenSearch, Kibana, New Relic Testing: Playwright, Selenium, Cypress, Appium, REST Assured, Postman, Testcontainers, WireMock, JMeter, k6 Domain Experience Fintech, Finance, Healthcare, Insurance, Manufacturing, Telecom, E-commerce, Recruitment, SaaS, and Enterprise Applications. Whether you need a Solution Architect, Java/Spring Boot Architect, Full-Stack Engineer, AWS Architect, Technical Lead, or AI Application Architect, I can help take your project from requirements to production.

⭐⭐⭐⭐⭐ 𝗜'𝗺 𝗮𝗻 𝗜𝗧 𝗽𝗿𝗼𝗳𝗲𝘀𝘀𝗶𝗼𝗻𝗮𝗹 𝘄𝗶𝘁𝗵 𝗮 𝗽𝗮𝘀𝘀𝗶𝗼𝗻 𝗳𝗼𝗿 𝗱𝗲𝘃𝗲𝗹𝗼𝗽𝗶𝗻𝗴 𝘁𝗼𝗽-𝗻𝗼𝘁𝗰𝗵 𝘀𝗼𝗹𝘂𝘁𝗶𝗼𝗻𝘀 𝘂𝘀𝗶𝗻𝗴 𝗣𝘆𝘁𝗵𝗼𝗻, 𝗝𝗮𝘃𝗮𝗦𝗰𝗿𝗶𝗽𝘁, 𝗔𝗪𝗦, 𝗞𝘂𝗯𝗲𝗿𝗻𝗲𝘁𝗲𝘀, 𝗮𝗻𝗱 𝗺𝗼𝗿𝗲. My expertise in DevOps, Docker, WordPress, Node.js, React, MySQL, and Terraform is matched by my strong skills in cloud computing, particularly with Amazon Web Services and Google Cloud Platform. 𝗞𝗲𝘆 𝗙𝗼𝗰𝘂𝘀: Cloud Migration, Security, DevOps, and CI/CD Pipeline: These are my top priorities. I ensure secure, efficient, and seamless transitions to the cloud, backed by robust security measures and streamlined DevOps practices. 𝗪𝗵𝗮𝘁 𝗜 𝗱𝗼 𝗕𝗲𝘀𝘁: ✅ Versatile Coding and Development: Whether it's crafting applications or deploying cloud solutions, I leverage Python, JavaScript, and more to deliver outstanding results. ✅Cloud Expertise: Proficient in AWS and Google Cloud Platform, I excel at cloud computing, ensuring scalable and reliable solutions. 𝗪𝗵𝘆 𝗪𝗼𝗿𝗸 𝘄𝗶𝘁𝗵 𝗠𝗲: ✅ Diverse Skill Set: From Kubernetes and Docker to WordPress and SQL, my diverse skills meet various IT needs. ✅ Proactive and Collaborative: I believe in staying in touch with clients throughout the project, ensuring transparency and alignment with your goals.. 𝗟𝗼𝗼𝗸𝗶𝗻𝗴 𝗳𝗼𝗿𝘄𝗮𝗿𝗱 𝘁𝗼 𝗯𝘂𝗶𝗹𝗱𝗶𝗻𝗴 𝘁𝗵𝗲 𝗮𝗽𝗽𝗹𝗶𝗰𝗮𝘁𝗶𝗼𝗻𝘀 𝗼𝗳 𝘁𝗵𝗲 𝗳𝘂𝘁𝘂𝗿𝗲!

OCJP Certified Java Architect | Spring Boot | Microservices | AWS | Kafka | Camunda | 13+ Years Experience With 13+ years of professional experience in designing, developing, and deploying enterprise-grade applications, I help businesses build scalable, secure, and high-performance cloud-native solutions. My expertise spans Java, Spring Boot, Microservices Architecture, AWS Cloud, Kafka, Redis, Docker, Kubernetes, CI/CD, OAuth2, Keycloak, JWT, and Camunda BPM. Key Highlights: ✔ OCJP Certified Java Professional ✔ 12+ Years of Software Development Experience ✔ Microservices & Cloud-Native Architecture Specialist ✔ Banking & FinTech Domain Expertise ✔ RESTful APIs, Event-Driven Systems, and Distributed Architecture ✔ AWS Cloud Deployment & DevOps Automation ✔ Security Implementation with OAuth2, JWT, Keycloak, LDAP, and Okta Recent Accomplishments: ✅ Designed and implemented cloud-native microservices using Java, Spring Boot, Spring Cloud, Docker, and Kubernetes. ✅ Built FinTech and Banking solutions integrating payment gateways and remittance platforms, including Stripe, RIA, and Instant Cash Exchange House APIs. ✅ Developed high-performance event-driven architectures using Kafka and Redis for real-time processing and scalability. ✅ Automated deployment pipelines using Jenkins, Docker, Kubernetes, SonarQube, and Git-based CI/CD workflows. ✅ Implemented workflow orchestration and business process automation using Camunda BPM. AI-Assisted Development: I effectively leverage AI tools such as ChatGPT and GitHub Copilot to accelerate development productivity by 60–80% through: • Business rule analysis and API design • Schema and ORM modeling • Rapid endpoint generation • Code completion and refactoring • Automated code reviews and quality improvements • Technical documentation generation Core Technologies: • Java, Spring Boot, Spring Framework, Spring Cloud, Hibernate, JPA, Camunda, GraphQL, WebSockets • Kafka, RabbitMQ, Redis, Docker, Kubernetes • MySQL, Oracle, PostgreSQL, MongoDB, Elasticsearch • AWS (EC2, ECS, RDS, S3, IAM, SQS) • OAuth2, JWT, Keycloak, LDAP, Okta, Spring Security • React, Angular, TypeScript, JavaScript • Jenkins, Git, Maven, SonarQube, Jira I am passionate about building reliable, scalable, and secure enterprise solutions that deliver measurable business value. Let's discuss how I can help your team accelerate development, modernize architecture, and successfully deliver high-quality software solutions.

I am an experienced Software Engineer specializing in Java, Spring Boot, J2EE, and Microservices Architecture, with strong expertise in enterprise-level FinTech applications. Since November 2022, I have contributed to mission-critical projects at Atlas Computer Technology, including USSD platforms, Mobile Banking, Backoffice systems, and real-time payment integrations. My expertise includes: ✅ Java EE & Spring Boot (Reactive) for building scalable, high-performance banking applications, including customer onboarding and back-office operations. ✅ Microservices design and implementation with modular, maintainable architectures. ✅ Asynchronous messaging & integration using Kafka and ActiveMQ for seamless inter-service communication. ✅ Payment gateway integrations, including Flygate and IPS, supporting real-time bank-to-bank transfers with XML messaging. ✅ Secure identity management using Keycloak. ✅ Designing and consuming RESTful APIs, with experience in modernizing services for cloud readiness and enterprise integration. Professional Approach: I am passionate about delivering clean, maintainable, and production-ready code that drives real business value. I bring a problem-solving mindset, collaborative approach, and adaptability to every project — whether building features from scratch, optimizing existing systems, or integrating complex banking solutions. Let’s connect and make your vision a reality. Portfolio: kidist-portfolio-al3e.vercel.app

Clients come to me for one of two things: building an enterprise-grade system the right way from the start, or rescuing an existing codebase fixing bugs, resolving integration issues, and shipping features other developers left unfinished. I'm Abel, a full-stack developer with 5 years building production systems — from a government justice case management platform to a real-time tax risk engine processing live data through Kafka. I pair Java/Spring Boot microservices with Angular or React frontends, and I turn messy requirements into stable, scalable products. WHAT I HELP WITH ✔ Enterprise & government systems — case management, revenue/tax platforms, complex backend-heavy applications ✔ Microservices & API integration — event-driven architecture, Kafka, REST APIs that hold up under real load ✔ SaaS & MVPs — end-to-end builds with Spring Boot + Angular/React ✔ Rescuing broken projects — messy auth, unstable APIs, half-finished features ✔ Auth & security — Keycloak, OAuth2, JWT done properly ✔ Deployment & monitoring — Docker, Kubernetes, Grafana, Loki MY STACK Backend: Java, Spring Boot, Kotlin, Node.js, Apache Kafka Frontend: Angular, React, TypeScript, Tailwind CSS Databases: PostgreSQL, Supabase DevOps: Docker, Kubernetes, Grafana, Loki, GitHub Actions Auth: Keycloak, OAuth2, JWT Clients tell me I bring enterprise-level discipline to fast-moving projects — clean architecture, clear documentation, and systems that hold up under real load. If your project involves real users, real transactions, or real consequences — let's talk. Send me a message with your project details or requirements, and let's bring your platform to life.

I am a software engineer with 4 years of experience spanning backend development, DevOps, and cloud platform engineering. I build scalable, secure, and automated cloud platforms from the ground up and bring a developer-first mindset to every infrastructure challenge I take on. I work well independently and communicate clearly throughout every engagement, from scoping to delivery. BACKGROUND My career started in software development, building production applications using Spring Boot and Python. This backend foundation shapes how I approach cloud and DevOps work, because I understand what developers need from the platforms they run on. I have hands-on experience with modern AI/LLM tooling including LangChain, LangGraph, and LiteLLM, and I have integrated vector databases like OpenSearch into production systems. This means I can support teams building AI-powered products at both the application and infrastructure layer. WHAT I CAN DO FOR YOU Whether you are a startup building your first cloud environment or an established team dealing with scaling, reliability, or cost problems, I can step in at any stage of the process. * Design and build cloud infrastructure on AWS or GCP from scratch * Migrate existing workloads to the cloud with minimal downtime * Build and maintain backend services and REST APIs using Python or Java * Design relational and non-relational database schemas and optimize query performance * Containerize applications using Docker and orchestrate them with Kubernetes * Build or improve CI/CD pipelines using GitHub Actions or Jenkins * Implement GitOps workflows with ArgoCD for automated, auditable deployments * Write clean, reusable Terraform modules for reproducible infrastructure * Set up full observability with Prometheus, Grafana, and Loki so your team has visibility into everything * Harden your cloud environment for security and compliance * Optimize infrastructure costs without sacrificing performance or reliability * Integrate LLM tooling and AI components into cloud-native architectures CORE SKILLS Backend Engineering * Python, Java, Spring Boot * REST API design and development * PostgreSQL, MySQL, MongoDB, Redis * Message brokers: Kafka, RabbitMQ * Microservices architecture and system design * Authentication and authorization: OAuth2, JWT, Keycloak * Unit testing, integration testing, test-driven development DevOps & Platform Engineering * Kubernetes, Docker, Docker Compose * GitHub Actions, Jenkins, ArgoCD * Terraform, Linux, Bash scripting * Prometheus, Grafana, Loki AI & LLM Engineering * LangChain, LangGraph, LiteLLM * OpenSearch and vector database integration * RAG pipelines and LLM application development Cloud Platforms * AWS: End-to-end architecture, migrations, and optimization * GCP: Production-grade platform design and deployment CERTIFICATIONS Google Cloud * Google Cloud Professional Cloud Architect AWS (13 Certifications) Foundational * AWS Certified Cloud Practitioner * AWS Certified AI Practitioner Associate * AWS Certified Solutions Architect - Associate * AWS Certified Developer - Associate * AWS Certified SysOps Administrator - Associate * AWS Certified Data Engineer - Associate * AWS Certified Machine Learning - Associate Professional * AWS Certified Solutions Architect - Professional * AWS Certified DevOps Engineer - Professional * AWS Certified Generative AI Developer - Professional Specialty * AWS Certified Security - Specialty * AWS Certified Advanced Networking - Specialty * AWS Certified Machine Learning - Specialty HOW I WORK I treat every client engagement like a product. That means understanding the business context behind the technical requirement, communicating progress clearly, delivering clean and documented work, and making sure what I build can be maintained and extended after I am done. I do not disappear after delivery. I make sure things work. I am available for both short-term engagements and longer-term platform work. If you have a specific problem to solve or a platform to build, send me a message and we can determine if I am the right fit.