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Platform & DevOps Architect | Kubernetes, GitOps, HA Databases, Cloud I help companies build reliable production infrastructure and solve critical incidents. My specialties include: * Kubernetes and GitOps platforms * Cloud solutions (AWS/Azure/GCP) * PostgreSQL Patroni and database HA * Active Directory and Windows infrastructure * Disaster Recovery and High Availability * Production troubleshooting and performance optimization With 20+ years of infrastructure experience, I work with startups and enterprises to design, automate and operate business-critical systems. Linux / Platform Engineering: • Production Kubernetes platforms using GitOps (FluxCD, ArgoCD), Helm, and Docker • Web and application stacks: nginx, Apache, PHP, MySQL/MariaDB * DBA: Postresql Patroni, MySQL InnoDB Cluster, Galera Cluster • CI/CD pipelines with GitHub Actions, GitLab CI, Bitbucket Pipelines, and Azure DevOps • Monitoring and observability using Grafana + Prometheus, Zabbix, ELK (+ APM) • Automation and scripting with Bash and Python • Virtualization platforms: VMware, Hyper-V, Xen AWS, GCP, Azure - 10+ years of experience with clouds • Perfect knowledge of SaaS services: EC2, ECR/ECS, VPC, Lambda etc. • Strong architect skills. • aws-cli, cloud, az skills. Windows Infrastructure (20+ years): • Expert in Windows Server 2003–2022, Active Directory, Group Policy, Exchange 2013–2019, and Exchange Online. • Failover Clustering, Network Load Balancing (NLB), MS SQL Server Clusters and AGs. Typical projects: • PostgreSQL Patroni HA clusters • Kubernetes production troubleshooting • ClickHouse migrations and optimization • Active Directory security audits • Hyper-V and VMware infrastructure • Disaster Recovery design and implementation • Performance optimization and incident response

I build infrastructure that stays up when it matters. Government platforms for 2M+ citizens, banking systems for 1M+ users, and AI rendering stacks on GPU Kubernetes clusters. Shipped on time, documented for the team that inherits it. 5+ years owning the full stack: physical hardware, hypervisors, Kubernetes, service mesh, cloud networking, CI/CD, observability, and GPU AI workloads. Across government, fintech, SaaS, and deep-tech startups. Government Scale — OpenG2P Ethiopia, 3 Ministries Leading platform engineering for Ethiopia's national OpenG2P welfare system across ATI, MoWSA, and EDRMC. Serving 2M+ beneficiaries on RKE2 with Rancher, Istio mTLS, Keycloak SSO, WireGuard site-to-site VPN, XCP-ng hypervisor with Hardware RAID 1+0, and a full Prometheus + Grafana + Alertmanager + Loki observability stack. Currently executing a large-scale ODK to OpenG2P data migration with schema mapping, validation pipelines, audit trails, and phased rollback. AWS Serverless Architecture — WeTruck Architect and operator of WeTruck's serverless logistics platform. CloudFront to ALB to WAF (deny-by-default with Telebirr payment gateway IP whitelisting) to Lambda (FastAPI via Mangum). Fully Terraformed infrastructure. GitHub Actions with OIDC federation (zero long-lived credentials), RDS PostgreSQL, DynamoDB for JWT token store, SQS with dead-letter queue, Secrets Manager, AWS Amplify for three Next.js frontends (back-office, transporter, shipper), and Route 53 private/public DNS. I own production incidents end-to-end and authored the full deployment runbook and troubleshooting playbook. AWS in daily use: Lambda, EC2, EKS, CloudFront, ALB, WAF, RDS, DynamoDB, SQS, Secrets Manager, Amplify, ECR, Route 53, IAM OIDC, VPC (private subnets, NAT Gateway, VPC endpoints), CloudWatch, ACM. MPLS and AI Rendering Infrastructure — MetaPlux (Tech Lead) Tech Lead on a distributed GPU-aware AI rendering platform. MPLS networks for deterministic, low-latency routing across distributed rendering nodes with label-switched paths and traffic engineering for QoS-sensitive GPU workload traffic. BGP and OSPF routing across hybrid environments connecting on-premises GPU clusters to cloud egress points. WireGuard VPN tunnels for secure, auditable connectivity. Multi-cloud strategy across AWS and Azure for rendering workload distribution. Platform architecture for GPU-aware Kubernetes scheduling and job orchestration. This role sits at the intersection of deep networking and modern cloud infrastructure, the combination most DevOps engineers don't have. AI and GPU Infrastructure — Exponent.ch (Switzerland) Provisioned and managed NVIDIA GPU-enabled RKE2 clusters running AI and automation workloads: n8n, Langfuse LLM observability, LibreChat, and ClickHouse analytics. Standardized Helm deployments across 5+ environments using shared-stacks architecture. Integrated Teleport for zero-trust cluster access, automated secrets via Lade and 1Password. Prometheus + Grafana + Mimir observability with 99.9% metric coverage, 60% MTTR reduction, and 3 critical outages prevented through proactive alerting. Banking Infrastructure — 6 Ethiopian Banks, 1M+ Users Delivered high-availability mobile banking and USSD platforms for Siinqee Bank, Hijra Bank, Wegagen Bank, and others with 99.95% uptime across 1M+ users. Designed MPLS network architecture for multi-branch WAN connectivity with QoS for transaction data. Built Jenkins CI/CD for Maven Java apps (4 hours to 15 minutes). ELK processing 10TB+ daily logs. Proxmox and AWS hybrid cloud with ~35% cost reduction. Full Technical Stack Container Orchestration: Kubernetes (RKE2, EKS, K3s), Docker, Helm, Rancher, OpenShift Infrastructure as Code: Terraform, Terragrunt, Ansible, OpenTofu CI/CD: GitHub Actions, GitLab CI, Jenkins Cloud: AWS (full suite), Azure, OpenStack Networking: MPLS, BGP, OSPF, WireGuard, HAProxy, NGINX, VLAN, VPC design Service Mesh: Istio (mTLS, traffic policies, ingress) Observability: Prometheus, Grafana, Mimir, Alertmanager, Loki, OpenTelemetry, ELK, Zabbix, SigNoz Security and Identity: Keycloak, HashiCorp Vault, Teleport, IAM OIDC Virtualization: Proxmox, XCP-ng, VMware AI and Automation: NVIDIA GPU Kubernetes, YOLO, ONNX, TensorRT, n8n, Langfuse, LibreChat, ClickHouse Databases: PostgreSQL, MySQL, MongoDB, Redis, Elasticsearch, DynamoDB Backend: Python (FastAPI), Bash, Node.js How I work I overcommunicate early, give realistic timelines, and ship verified, not "it should work." I treat testing as the real deliverable, not a checkbox. If something is out of scope or a bad idea, I'll tell you before you spend money on it. Message me if you need: - AWS or Kubernetes infrastructure built or fixed - CI/CD pipelines developers actually trust - GPU and AI infrastructure with inference pipelines and observability - Migration from cloud to cloud, or on-prem to production cloud - MPLS, BGP, or complex network architecture across hybrid environments - Observability that catches problems before users do

Hi, I'm Arya - a Senior Software Engineer with 5+ years building scalable backend systems for fintech, e-commerce, and enterprise platforms. I specialize in high-performance APIs, microservices architecture, and complex third-party integrations. What I deliver: ✅ High-scale backend systems: Architected systems handling 400-600 RPS with 99.9% uptime ✅ Complex integrations: UK HMRC Making Tax Digital, payment gateways, e-commerce platforms ✅ Performance optimization: 50-60% database latency reduction through query optimization ✅ Revenue-driving features: Built product integrations generating 100+ billion IDR monthly revenue Recent client work: UK Tax Integration - Implemented HMRC Making Tax Digital (MTD) ITSA integration for an accounting system, enabling automated tax reporting for self-employment and UK property businesses Dubai Media Platform - Developed backend for a directory-style app featuring local activities, magazine content, and gamification systems Database Optimization - Achieved 50-60% latency reduction on MariaDB/AWS RDS for a Symfony application through Doctrine query optimization Indonesian E-commerce - Led pay-later system integrations with Tokopedia, Shopee, TikTok Shop, Lazada, and Traveloka Core expertise: Backend: Java (Spring Boot), NodeJS, PHP (Laravel/Lumen/Symfony), REST APIs, microservices Databases: MySQL, PostgreSQL, MariaDB - query optimization & schema design Cloud & DevOps: AWS, GCP, Kubernetes, Docker, CI/CD pipelines Integration: Government APIs (HMRC), payment systems, e-commerce platforms Why clients choose me: Proven at scale: 5+ years at Indonesia's leading fintech (part of Djarum Group) International experience: UK, UAE, and Southeast Asian clients Complete delivery: Clean code, tests, documentation, deployment guidance Reliable communication: GMT+7 based, professional English, regular updates Industries: Fintech, E-commerce, Government/Tax, Media & Entertainment, SaaS Ready to build reliable, scalable backend solutions for your business. Let's discuss your project requirements.

With over 24 years of expertise in Progress OpenEdge database administration and Java/OpenEdge development, I bring a wealth of experience to the table. My skills extend beyond traditional database administration into the realms of software development and architecture. As a seasoned Progress/OpenEdge/Java Developer and OpenEdge Database Administrator, I excel at optimizing database performance, ensuring data integrity, and leading complex projects to success. My commitment to delivering high-quality solutions is unwavering, and I have a proven track record of achieving exceptional results. I am passionate about leveraging my extensive knowledge to drive database management and software development excellence. Key Skills: 🚀 Programming Languages: Proficient in Progress OpenEdge 9.X, 10.X, 11.X, 12.X 4GL/ABL, Java, Android, HTML, and JavaScript. 🛠️ Frameworks: Experienced in OpenEdge ABL, ADM2, Spring, Struts, JPA, Hibernate, and ZK. 💾 Databases: Well-versed in OpenEdge, MySQL, PostgreSQL, and Oracle. 🌐 Middleware: Skilled in managing middleware technologies such as Tomcat, JBoss, Apache HTTP Server, NGINX, OpenEdge Classic AppServer, PASOE, Webspeed, REST API, SonicMQ, JMS Adapter, and ActiveMQ. 🛠️ Tools: Proficient in Eclipse, OpenEdge Developer Studio, PCT, SVN, ANT, Maven, and Jenkins. 🖥️ Operating Systems: Experienced in Windows, IBM AIX, Linux, and HP-UX. I am eager to collaborate on challenging projects within dynamic organizations that value expertise and innovation in both database administration and software development. Let's work together to drive your projects to success.

Is your PHP app slow, stuck on an old version, or running on a badly configured server? I fix exactly that — and build new systems that don't break down the road. I'm Zahid, a Laravel & Symfony specialist with 5 years of experience delivering backend systems for SaaS platforms, government organizations, and international businesses. I don't just write code — I solve the real problems behind your technical requirements. 🚀 𝗪𝗵𝗮𝘁 𝗜 𝗦𝗼𝗹𝘃𝗲 𝗙𝗼𝗿 𝗬𝗼𝘂 🔹 Fix slow applications I identify real bottlenecks — inefficient queries, N+1 issues, missing indexes, poor caching — and improve performance with measurable results. 🔹 Optimize & migrate databases I restructure poorly designed databases, tune slow queries, add proper indexing, and handle full data migrations — across MySQL, PostgreSQL, and Oracle — with zero data loss and full integrity checks. 🔹 Upgrade legacy systems Safe upgrades from PHP 5.x / 7.x → 8.x, Laravel and Symfony upgrades with full compatibility and minimal downtime. 🔹 Build scalable backend systems SaaS platforms, REST APIs, real-time features (WebSockets), and complex business logic designed to scale. 🔹 Integrate payment gateways — I implement secure, reliable payment flows using Stripe, PayPal, Mope payments, and other regional or custom gateways — subscription billing, one-time payments, marketplace payouts, and refund handling all covered. 🔹 Solve server & deployment issues Proper VPS setup, Nginx/Apache configuration, SSL, security hardening, and production stability. 🔹 Clean up messy codebases Refactoring legacy systems into maintainable, structured, and developer-friendly code. 𝗦𝗲𝗿𝘃𝗶𝗰𝗲𝘀 🔹 Laravel & Symfony Development — SaaS, multi-tenant apps, REST APIs, WebSockets, queues, admin panels. 🔹 PHP & Framework Upgrades — PHP 5/7 → 8.x, Laravel 5–12, Symfony version upgrade. 🔹 Performance Optimization — query tuning, Redis/Memcached caching, N+1 fixes, code refactoring. 🔹 Database Optimization & Migration — schema redesign, indexing, query optimization, cross-platform data migration (MySQL, PostgreSQL, Oracle) 🔹 Payment Gateway Integration — Stripe, PayPal, Mope payment, subscription billing, marketplace payouts, webhook handling. 🔹 VPS & Server Setup — cPanel, WHM, Nginx, Apache, SSL, DNS, mail server, firewall configuration. 🔹 Server & Hosting Migration — zero-downtime transfers, database migration, DNS cutover. 🔹 Legacy PHP Modernization — refactoring, security patching, technical debt reduction. 🔹 API & Third-Party Integration — REST APIs, webhooks, Twilio, and custom service connections. 𝗪𝗵𝘆 𝗖𝗹𝗶𝗲𝗻𝘁𝘀 𝗖𝗵𝗼𝗼𝘀𝗲 𝗠𝗲 🔹 Code + Server — One Person I own both the application and the infrastructure it runs on. No gaps between your developer and your sysadmin. 🔹 Government & Enterprise Delivered I've built production systems for government organizations and national enterprises — where reliability, security, and accountability are non-negotiable. 🔹 Performance You Can Measure I don't just say "it's faster." I give you real numbers — query times, page load speeds, server response metrics — before and after. 🔹 Long-Term Code Quality Clean architecture, SOLID principles, and full documentation so any developer can maintain what I build. 🔹 Global Availability Flexible hours covering US, European, and Middle Eastern time zones. 𝗧𝗲𝗰𝗵 𝗦𝘁𝗮𝗰𝗸 🔹 Backend: PHP, Laravel, Symfony, CodeIgniter, REST APIs, WebSockets, Cron Jobs, Queue Workers, Eloquent ORM, Doctrine ORM, JWT Authentication, Mail Integration 🔹 Database: MySQL, PostgreSQL, Oracle DB, SQL, Database Optimization, Database Migration 🔹 Server: VPS, Dedicated Server, Shared Hosting, cPanel, WHM, Plesk, CyberPanel, DirectAdmin, Nginx, Apache, OpenLiteSpeed, Linux (Ubuntu, CentOS, Debian, AlmaLinux), Windows Server, Docker, Kubernetes, Cloudflare, CI/CD, GitHub Actions, Jenkins 🔹 Frontend: React.js, Next.js, Vue.js, JavaScript, Tailwind CSS, Bootstrap, base44 🔹 API & Third-Party: Payment Gateway Integration, SMS Gateway Integration, Chatbot, Geo-Location APIs, Twillo APIs. 🔹 CMS & E-commerce: WordPress, Shopware, Grav CMS Tell me your situation — slow app, broken server, outdated codebase, or a new build. I'll give you a clear plan, honest timeline, and get it done right.

💡 Whether you need a new product built from scratch, help with cloud infrastructure, or expertise in digital signatures and security, I can help you deliver results. I bring together strong backend development skills with solid DevOps and cloud expertise, so you don’t just get code — you get a solution that’s ready for real-world growth. What I Can Do for You 💻 Software Development - Build robust back-end systems using Java or Python, Golang - Deliver production-ready APIs with Spring Boot, Django, Flask, FastAPI - Develop and customize enterprise platforms — including Warehouse Execution Systems (WES) and Warehouse Control Systems (WCS) at Fortna, covering order orchestration, inventory management, and integration with conveyors, sortation, and robotics in automated fulfillment centers 🤖 AI Agents & Automation - Design and build AI agent workflows that automate real business processes — data extraction, document processing, customer support, internal tooling, and reporting - Use AI tools (Claude, Cursor, Codex, LangChain-style orchestration) to ship products faster and reduce manual workload - Build custom integrations connecting AI agents to your existing systems (databases, APIs, internal dashboards) so automation actually fits into your workflow, not bolted on top of it 🗄 Databases & Data Engineering - Design and optimize databases (MySQL, MongoDB, Neo4j, Redis) - Build ETL pipelines and data warehouses (on-premise or cloud) - Web scraping & data processing with Selenium, BeautifulSoup, Scrapy, Airflow, Dagster, Playwright, ... ☁️ Cloud & DevOps - Deploy and manage apps on AWS and GCP - Automate infrastructure with Terraform - Ensure scalability with Kubernetes (K8s) - Set up monitoring dashboards with Prometheus & Grafana 🔐 Security & Digital Signatures - Implement digital signature workflows (PDF signing, PKI, CSC API) - Expertise with tools like iText, PDFBox, pyHanko, DSS Framework - Integrate cryptography & HSM solutions for compliance and security Why Clients Choose Me ✅ I don’t just code — I design, implement, and maintain full solutions. ✅ Strong focus on scalability, reliability, and security. ✅ Experience across product development, infrastructure, and consulting. ✅ Flexible: can work as a hands-on engineer or a technical consultant/partner.