Hire the Best Ab Initio Developers
in India

I build and ship production web applications end to end. Java/Spring Boot or Python on the backend, React/Next.js/Angular on the frontend, and I set up the Docker and CI/CD pipelines that deploy them. One of my systems, the Internship Management Portal, runs in production for the Department of IT, Government of Sikkim. Three services, one developer, no handoffs between them: - Full-Stack Web Development: Role-based platforms with REST APIs, Spring Security + JWT auth, Hibernate and MySQL, and Angular or React frontends. Clean, tested, documented code. - DevOps & CI/CD: Dockerized builds, GitHub Actions pipelines pushing to a container registry, automated database migrations (Flyway), and hands-off redeploys on cloud VMs. - Python Automation: Scripts and tools that remove manual work, including data crawling, prospect discovery, cold-outreach automation, and reporting. Selected work: - Internship Management Portal (Government of Sikkim): Angular 14 + Spring Boot + Spring Security (JWT), Hibernate, MySQL. A live, multi-role government system running internship workflows end to end. - CampusConnect: Spring Boot + Angular + Hibernate + MySQL, fully Dockerized with a GitHub Actions to GHCR pipeline and 194 automated tests, plus auto-redeploy on new image builds. - S.C.O.M.P: A Python + SQLite tool that discovers prospects and runs cold outreach, replacing hours of manual research. How I work: I care about why a system behaves the way it does, not just getting the tests green. That means unit and integration tests, a sane Git history, migrations instead of manual DB edits, and clear handoff docs so you are never locked to me. I reply quickly and keep scope explicit. If you need one person who can design the app, write the backend and frontend, and own the deployment pipeline, let's talk.

Specialized Discourse developer with 5+ years of experience in plugins, themes, migrations, SSO, and custom integrations. I help businesses build, customize, migrate, and maintain Discourse communities — from initial setup to advanced platform development. What I Can Help You With: Custom Discourse plugin development Theme & theme component development Advanced Discourse customizations Community platform migrations to Discourse SSO implementation API & third-party integrations AI integrations & automation Docker setup & deployment Performance optimization Upgrades & maintenance Community Migration Expertise: I can migrate virtually any community platform to Discourse while preserving users, posts, categories, permissions, and SEO structure. Migration experience includes Invision Community (IPB) XenForo phpBB vBulletin Vanilla Forums wpForo bbPress Flarum NodeBB Custom-built platforms I also handle URL redirect preservation Data cleanup & restructuring Plugin compatibility Theme recreation Post-migration optimization Open Source Contributions: Active contributor to the Discourse ecosystem with contributions to Discourse core Theme components User support Feature improvements Client Feedback: "I highly recommend Jahan to anyone facing challenges in transferring forums from IPB 4.x — your expertise and support are truly invaluable." "I've dealt with numerous developers over the years and Jahan was by far the best I've ever worked with. Completed the project quickly and at an excellent price. A+++++++++" "Communication was on equal terms and everything was super relaxed. Definitely recommendable!" If you need a dedicated Discourse specialist for development, migration, integrations, or long-term maintenance, I’d be happy to help.

Hi, I’m a Senior Full Stack Developer with 8+ years of experience building scalable, secure, and high-performance web applications. I specialize in Java, Spring Boot, React, Angular, AWS, and modern cloud-native architectures, helping businesses transform ideas into reliable, production-ready software. Over the years, I’ve delivered enterprise applications across healthcare, finance, and business automation domains. My expertise spans backend development, modern frontend frameworks, cloud deployment, API integrations, and system architecture. Core Skills • Java, Spring Boot, Hibernate, JPA • React, Angular, TypeScript, JavaScript • REST APIs, Microservices, GraphQL • AWS (Cognito, EC2, S3), Docker, Kubernetes • MySQL, PostgreSQL • Spring Security, OAuth2, JWT Authentication • AI/LLM Integrations & Workflow Automation (n8n) • Xero, Sage & Third-Party API Integrations I have extensive experience designing scalable REST APIs, modernizing legacy applications, integrating cloud services, and building secure authentication systems. I’ve also led engineering teams, mentored developers, conducted code reviews, and driven technical decisions for enterprise-scale projects. I focus on writing clean, maintainable code, communicating clearly, and delivering high-quality solutions on time. Whether you need a complete full-stack application, backend APIs, frontend development, cloud integration, or ongoing technical leadership, I’m ready to help.

Why Choose Me as Your Development Partner? I’m a Senior Full-Stack & Mobile Developer (9+ years) who helps founders and teams turn ideas into production-ready web, mobile, and AI-powered products — fast, clean, and scalable. I combine strong engineering fundamentals with modern vibe-coding workflows to ship faster without cutting corners. ⸻ ✅ Proven Track Record • 🏆 Top 1% Rated Freelancer on Upwork • 🏆 1000+ hours of successful client delivery • 🏆 60+ projects delivered with consistent quality • 🏆 100% Job Success Rate • 🏆 Clean, maintainable, production-ready code ⸻ 🔧 Core Expertise (Full-Stack + Mobile) Frontend & Mobile • React, Next.js, Angular, Vue • React Native, Flutter, Ionic • TypeScript, JavaScript Backend • Node.js, Express • Java (Spring Boot) • Python, Go Databases & APIs • PostgreSQL, MongoDB • REST & GraphQL APIs • Elasticsearch • Vector databases (Pinecone, FAISS, Chroma) Cloud & DevOps • AWS (EC2, S3, Lambda) • Docker, Kubernetes • CI/CD (GitHub Actions, Jenkins) • Terraform (IaC) ⸻ 🤖 AI, RAG & Vibe Coding (Done Right) I build real AI systems, not demos. AI & RAG • OpenAI, Claude, Gemini integrations • End-to-end RAG pipelines (ingestion → embeddings → retrieval → re-ranking) • Secure data sources (PDFs, Docs, Notion, DBs, APIs) • AI chatbots for SaaS, internal tools, and customer support • Token cost & performance optimization Vibe Coding Workflow • Cursor, Windsurf, Claude Code • Replit & Replit Agent • Lovable.dev, Bolt.new • AI-assisted refactoring, testing, and reviews 👉 Human judgment + AI speed = reliable software ⸻ 🌟 How I Add Value I don’t just code — I: • Think like a product owner • Improve existing codebases without breaking things • Reduce tech debt and improve maintainability • Communicate clearly and proactively • Respect timelines, budgets, and existing architecture ⸻ 📩 Let’s Work Together If You Need ✔ Rapid MVPs or startup builds ✔ AI / RAG implementation ✔ Web or mobile app development ✔ Code cleanup, refactoring, or modernization ✔ A reliable long-term development partner 💬 I’m open to negotiation and long-term collaboration.

Need a secure, seamless Single Sign-On (SSO) solution for your business? I can help. I’m a Senior IAM Consultant with 8+ years of experience specializing in Identity and Access Management (IAM). I design and implement robust authentication systems using Okta, Microsoft Entra ID (Azure AD), Keycloak, Shibboleth, OneLogin, Auth0, OpenFGA, and custom SAML 2.0, OAuth 2.0, and OpenID Connect (OIDC) providers. I also have expertise in LDAP, WS-Fed, RADIUS, JWT, and other authentication protocols to simplify access control and safeguard critical data. My Expertise: ✅ SSO & Authentication Solutions – Implementing SAML 2.0, OAuth 2.0, JWT-based logins, API key-based security, and server-to-server authentication. ✅ IAM Integration & Setup – Configuring Okta, Microsoft Entra ID, Keycloak, ADFS, OneLogin, Auth0, Identity Server 8, and other IAM providers, Simple SAML PHP. ✅ Troubleshooting Authentication Issues – Resolving login-related issues for SAML, OAuth, and custom identity providers. ✅ Fine-Grained Authorization – Deploying reverse proxy and bridge solutions, OpenFGA, and custom authorization mechanisms. ✅ User Provisioning & Governance – Secure provisioning/de-provisioning of users, groups, and resources via SCIM, custom scripts, or scheduled sync with databases, Active Directory, or other identity sources. ✅ Multi-Factor Authentication (MFA) & Identity Governance – Enhancing security with strong IAM policies. Technical Skills: I am proficient in PHP, Java, JavaScript, Python, Golang, Shell Scripting, and various frameworks, including Spring, Spring Boot, Node.js, React, Angular, Django, WordPress, CodeIgniter, Symfony, Laravel, Gin, and more. DevOps & Cloud Security: ✅ Cloud & On-Prem Infrastructure – Hands-on experience with AWS, EKS, EC2, Kubernetes (K8s), Docker, KAAS, SAAS, and on-prem deployments. ✅ Application Deployment & Security – Securing and deploying applications in cloud and on-prem environments. 🛠️ Identity Providers I’ve Worked With (100+): ✅ Google SSO login ✅ Microsoft Entra ID (Azure AD) SSO ✅ Okta SSO Integration ✅ Keycloak SSO ✅ Oracle IAM – OCI IAM, OAM, OIM ✅ Oracle Student Financial Aid (SFA) ✅ GitHub SSO ✅ Ping Federate SSO Login ✅ Auth0 Universal Login Setup ✅ OneLogin SSO Integration ✅ Shibboleth IdP/SP ✅ JumpCloud SSO Login ✅ ForgeRock IAM ✅ IdentityServer4/8 ✅ WSO2 Identity Server ✅ SimpleSAMLphp ✅ Custom SAML SPs ✅ AWS Cognito SSO ✅ Salesforce SSO ✅ G Suite Login ✅ Apple & Facebook OAuth ✅ Slack / Zoom OAuth Integration ✅ ADFS (Active Directory Federation Services) ✅ LDAP & RADIUS Authentication ✅ CyberArk Identity ✅ Centrify (now Delinea) ✅ IBM Security Verify / Tivoli Access Manager ✅ NetIQ Access Manager / Micro Focus ✅ Bitwarden SSO / Enterprise Login ✅ Duo SSO (Cisco Secure Access) ✅ VMware Workspace ONE Access (formerly vIDM) ✅ Zoho Directory / SSO ✅ Atlassian Access (Jira, Confluence SSO) ✅ SAP IAS / IPS ✅ Azure B2C & B2B Flows ✅ Facebook Workplace SSO ✅ Moodle SSO (via SAML / OIDC plugins) ✅ Canvas LMS SSO Integration ✅ OpenAM (legacy Sun Access Manager) ✅ FreeIPA / Red Hat SSO ✅ Ory Hydra / Kratos ✅ FusionAuth ✅ Gluu Server / Janssen Project ✅ NetIQ eDirectory SSO ✅ Apache Knox (for Hadoop ecosystem) ✅ IBM ISAM / ISVA ✅ Citrix Gateway (SSO via SAML/OAuth) ✅ Palo Alto Prisma Access (SAML Integration) ✅ CrowdStrike Falcon Identity ✅ BeyondTrust Identity Security ✅ Keeper Enterprise SSO ✅ Zoho One / Zoho Directory ✅ Freshworks SSO (Freshservice, Freshdesk) ✅ ServiceNow SSO Integration If you're looking for an IAM expert who can secure your authentication workflows, integrate IAM solutions, and troubleshoot identity-related challenges, let's connect!

Greetings! I'm Abhishek, a Sr. Software Engineer with 15+ years of experience as a Full Stack Developer and 9+ years as a Cloud Engineer. Technology Stack Details: ✓ Java: Java (7,8,11), SpringBoot, Spring Data, Spring Rest, Spring Cloud, JavaEE, Hibernate ✓ Cloud: AWS, Google Cloud (GCP), Docker, Kubernetes, ECS, Cloud-native apps, scalable clusters, zero-downtime deployment. ✓ Databases: Oracle/PostgreSQL/MySQL, big volume storage (AWS Redshift, AWS Athena/S3, Aurora, Cassandra, HDFS), Redis, MongoDB. ✓ Security: OAuth2, OpenID Connect, JWT, SSO-Single Sign-On, CAS / LDAP ✓ Web: Bootstrap, React, Thymleaf, JavaScript, OAuth, Tomcat, Nginx. ✓ API integrations: REST, SOAP, WebServices, WebSockets, etc. ✓ AWS: Clusters, Kinesis, Athena, Redshift, DynamoDB, Lambda, IoT, SQS/SNS, CloudFront/Route53/ApiGateway, vast AWS API usage, and automation. ✓ Data streaming: AWS Kinesis, Kafka, Camel, RabbitMQ. ✓ Performance optimization: JMeter, JProfiler, AWS X-Ray, GTMetrix, Gatling. ✓ CI/CD: Bamboo, Jenkins, Circle CI, Sonar, pipelines. ✓ Others: Maven, Gradle, Swagger, Linux, Git. 🌟 WHY CHOOSE ME OVER OTHER FREELANCERS? 🌟 ✅ Client Reviews: I focus on providing VALUE to all of my Clients and Earning their TRUST. The Client Reviews and Feedback on my Profile are immensely important to me and the value that I provide. ✅ Over-Delivering: This is core to my work as a Freelancer. My focus is on GIVING more than what I expect to RECEIVE. I take pride in leaving all of my Clients saying "WOW" ✅ Responsiveness: Being extremely responsive and keeping all lines of communication readily open with my Clients. ✅ Resilience: Reach out to any of my Current of Former Clients and ask them about my Resilience. Any issue that my Clients face, I attack them and find a SOLUTION. ✅ Kindness: One of the biggest aspects of my life that I implement in every facet of my life. Treating everyone with respect, understanding all situations, and genuinely wanting to IMPROVE my Client's situations. I am eager to work with you, to provide reliable, consistent, and High-Level solutions to design/development challenges. Please contact me, so we can discuss how we can work together to FULLY meet your Business Needs!