Hire the Best Java Developers in New Jersey

Hi, I am Sagar, an Upwork "Rising Talent", which means I am on my path to becoming Upwork's "Top-Rated" Freelancer, which depicts my Job Success Score to be promising by delivering quality standards on time. I am a Seasoned Technical Recruiter with 8 years of professional experience in Full lifecycle End-to-End Technical Recruiting I am an expert in: - LinkedIn Recruiter - Boolean search string variants - Indeed passive sourcing - X-ray Search - Establishing Network connections - GitHub - AI Recruiting rules and methods, Talent GPT, Chat GPT, GoHire - Stack Overflow, - ATS(iCIMS, Beamery, Greenhouse, Lever, Zoho, cBIZ, Jobscore, Amazon Hire) - ycombinator(Hackernews) Job posting - Job Posting - Internal and External(LinkedIn feed, Linked Groups, Indeed, Glassdoor) - Social Media (Facebook, Instagram, Twitter) - Calibrating technical competencies with HM's and Prospects - Technical candidate screening on questionnaires - Building candidate relationships to find a synergistic match - Mentoring Candidates until onboarding - Candidate Interview Preparation - Interview Coordination and Scheduling - Full Onsite Loop strategizing, pre-briefing, debriefing, and feedback documentation with business stakeholders. My Technology Knowledge: - Software Development Engineering (Fungible) - Software Engineering Engineering (Backend, Front End, Full Stack, Firmware, Embedded, IoT, IOS, and Android) - Data Science and optimization - UGC(User Guided Content) Creators - UI/UX Designers - Data Engineering - DevOps and Cloud Engineering - Cyber Security - Technical Project Management - Network and System Engineering My Education: - Masters in Information Systems - Bachelors in Computer Science - Independent Study Thesis - Technical Recruitment A passionate and self-motivated individual to find the best talent in the industry retaining long-time connections and building a targeted database. Hire me to discover smart insights in dealing with candidates and hiring managers. Let's work together to help reach your business its highest hiring potential.

Full Stack Java Development | Python Backend | ETL Pipelines | SQL Optimization | Hadoop | Spark | Snowflake | dbt | Enterprise Systems I’m a 𝗨𝗦‑𝗯𝗮𝘀𝗲𝗱 𝗦𝗲𝗻𝗶𝗼𝗿 𝗝𝗮𝘃𝗮 𝗕𝗮𝗰𝗸𝗲𝗻𝗱 𝗮𝗻𝗱 𝗗𝗮𝘁𝗮 𝗘𝗻𝗴𝗶𝗻𝗲𝗲𝗿 /𝗗𝗮𝘁𝗮 𝗔𝗻𝗮𝗹𝘆𝘀𝘁 with 𝟵+ 𝘆𝗲𝗮𝗿𝘀 𝗼𝗳 𝗲𝘅𝗽𝗲𝗿𝗶𝗲𝗻𝗰𝗲 building and scaling enterprise systems for Fortune 500 companies, including 𝗝𝗣𝗠𝗼𝗿𝗴𝗮𝗻 𝗖𝗵𝗮𝘀𝗲, 𝗙𝗼𝗿𝗱 𝗠𝗼𝘁𝗼𝗿 𝗖𝗼𝗺𝗽𝗮𝗻𝘆, 𝗮𝗻𝗱 𝗝𝗲𝘁𝗕𝗹𝘂𝗲. My work focuses on backend engineering, distributed data pipelines, and modernizing systems that need to perform reliably under real production load. I’ve spent my career designing backend architectures that stay fast, stable, and cost‑efficient as they grow. Whether it’s a Java microservice that needs to scale, a Python backend that needs to be production‑ready, or a data pipeline that has to process millions of records without breaking, this is the work I do every day. 𝗛𝗼𝘄 𝗜 𝗛𝗲𝗹𝗽 𝗧𝗲𝗮𝗺𝘀: 𝗝𝗮𝘃𝗮 𝗘𝗻𝘁𝗲𝗿𝗽𝗿𝗶𝘀𝗲 𝗔𝗽𝗽𝗹𝗶𝗰𝗮𝘁𝗶𝗼𝗻𝘀 𝗮𝗻𝗱 𝗥𝗘𝗦𝗧 𝗔𝗣𝗜𝘀: If your backend is slow, fragile, or stuck inside a monolith, I fix that. I work with Spring Boot, Spring MVC, Spring Security, JWT authentication, GraphQL, and microservices. I modernize legacy Java codebases, break apart monoliths, and build APIs that stay reliable when traffic spikes. 𝗣𝘆𝘁𝗵𝗼𝗻 𝗕𝗮𝗰𝗸𝗲𝗻𝗱 𝗮𝗻𝗱 𝗙𝗮𝘀𝘁𝗔𝗣𝗜 𝗦𝗲𝗿𝘃𝗶𝗰𝗲𝘀: I build Python services using FastAPI, SQLAlchemy, asyncio, and Pydantic. I’ve delivered async microservices, automation workflows, and data processing jobs used in production at Ford and JetBlue. 𝗖𝗹𝗼𝘂𝗱 𝗔𝗿𝗰𝗵𝗶𝘁𝗲𝗰𝘁𝘂𝗿𝗲 𝗮𝗻𝗱 𝗜𝗻𝗳𝗿𝗮𝘀𝘁𝗿𝘂𝗰𝘁𝘂𝗿𝗲: I design and deploy production environments on GCP, AWS, and Azure. I’ve built systems using Cloud Run, Pub/Sub, Dataflow, BigQuery, GKE, Lambda, S3, Redshift, Glue, and EKS. I use Terraform for infrastructure as code and set up CI/CD pipelines for clean deployments. 𝗗𝗮𝘁𝗮 𝗘𝗻𝗴𝗶𝗻𝗲𝗲𝗿𝗶𝗻𝗴 𝗮𝗻𝗱 𝗘𝗧𝗟 𝗣𝗶𝗽𝗲𝗹𝗶𝗻𝗲𝘀: If your pipelines are brittle, slow, or producing outdated data, I rebuild them. I work with Apache Beam, Spark, Airflow, Kafka, dbt, Snowflake, and BigQuery. At Ford, I replaced a six‑hour Hadoop batch job with a Dataflow streaming pipeline that finished in under ten minutes. 𝗗𝗮𝘁𝗮𝗯𝗮𝘀𝗲 𝗗𝗲𝘀𝗶𝗴𝗻 𝗮𝗻𝗱 𝗣𝗲𝗿𝗳𝗼𝗿𝗺𝗮𝗻𝗰𝗲 𝗢𝗽𝘁𝗶𝗺𝗶𝘇𝗮𝘁𝗶𝗼𝗻: I tune SQL queries, redesign schemas, and optimize databases at scale. I’ve worked with PostgreSQL, SQL Server, MongoDB, MySQL, Redshift, Snowflake, and BigQuery. 𝗟𝗲𝗴𝗮𝗰𝘆 𝗦𝘆𝘀𝘁𝗲𝗺 𝗠𝗼𝗱𝗲𝗿𝗻𝗶𝘇𝗮𝘁𝗶𝗼𝗻: I migrate old systems without disrupting what already works. I’ve moved slow stored procedures into Spark and Hive, improving execution time across distributed file systems. 𝗔𝗣𝗜 𝗜𝗻𝘁𝗲𝗴𝗿𝗮𝘁𝗶𝗼𝗻𝘀: I build reliable integrations with third‑party APIs, handling authentication, pagination, rate limits, retries, and logging. I’ve worked with payment gateways, SaaS platforms, IoT systems, and enterprise data sources. 𝗧𝗲𝗰𝗵𝗻𝗶𝗰𝗮𝗹 𝗘𝘅𝗽𝗲𝗿𝘁𝗶𝘀𝗲: 𝗕𝗮𝗰𝗸𝗲𝗻𝗱 𝗗𝗲𝘃𝗲𝗹𝗼𝗽𝗺𝗲𝗻𝘁: Java (8, 11, 17), Python, Spring Boot, Spring Security, Microservices, REST APIs, GraphQL, Swagger/OpenAPI 𝗗𝗮𝘁𝗮 𝗘𝗻𝗴𝗶𝗻𝗲𝗲𝗿𝗶𝗻𝗴: Spark, Hadoop, Beam, Hive, Airflow, Spring Batch, Data Ingestion Pipelines 𝗖𝗹𝗼𝘂𝗱: GCP (Cloud Run, BigQuery, GKE), AWS (Lambda, S3, Redshift, EKS), Azure 𝗗𝗮𝘁𝗮𝗯𝗮𝘀𝗲𝘀: PostgreSQL, SQL Server, MongoDB, MySQL, Redis, Snowflake 𝗗𝗲𝘃𝗢𝗽𝘀: Terraform, Kubernetes, Docker, CI/CD (GitHub Actions, Jenkins, Tekton) 𝗠𝗼𝗻𝗶𝘁𝗼𝗿𝗶𝗻𝗴: Grafana, Splunk, Cloud Monitoring The Right Fit: I work best with teams that need a senior engineer who can take ownership of complex backend or data engineering problems. If you’re building on GCP, AWS, or Azure and need someone who has worked in those environments at scale, I can help. I communicate clearly, deliver on time, and bring the same standards I used at Ford and JPMorgan. 𝗜𝗳 𝘆𝗼𝘂’𝗿𝗲 𝗿𝗲𝗮𝗱𝘆 𝘁𝗼 𝗶𝗺𝗽𝗿𝗼𝘃𝗲 𝘆𝗼𝘂𝗿 𝗯𝗮𝗰𝗸𝗲𝗻𝗱 𝗽𝗲𝗿𝗳𝗼𝗿𝗺𝗮𝗻𝗰𝗲 𝗼𝗿 𝗯𝘂𝗶𝗹𝗱 𝗮 𝘀𝗰𝗮𝗹𝗮𝗯𝗹𝗲 𝗱𝗮𝘁𝗮 𝗽𝗶𝗽𝗲𝗹𝗶𝗻𝗲, 𝘀𝗲𝗻𝗱 𝗺𝗲 𝗮 𝗺𝗲𝘀𝘀𝗮𝗴𝗲 𝗼𝗿 𝗰𝗹𝗶𝗰𝗸 “𝗜𝗻𝘃𝗶𝘁𝗲 𝘁𝗼 𝗝𝗼𝗯” 𝘁𝗼 𝗴𝗲𝘁 𝘀𝘁𝗮𝗿𝘁𝗲𝗱. Spring Boot, Java Backend, SaaS Development, REST API, Microservices, AWS, Scalable Applications, SaaS Architecture, Platform Engineering, Distributed Systems, Event-Driven Architecture, Cloud-Native Development, Enterprise APIs, Multi-Tenant SaaS, AI Integrations, Kubernetes, Docker, Kafka, DevOps, System Design, Scalable Infrastructure, High Availability Systems, Fintech, Healthcare Platforms, Senior Data Engineer, Backend Engineer, Data Platform Engineer, Data Pipeline Development, ETL Development, ELT, Data Architecture, Data Engineering, Data Warehousing, Analytics Engineering, Big Data, Data Integration, Data Modeling, Database Design, Database Management, PostgreSQL, MySQL, MongoDB, Redis, SQL, Python

AI Agent Developer specializing in LangChain, LangGraph, RAG systems, and n8n/Make automation. I've shipped 80+ production AI systems for startups and enterprises across the US, Europe, and Middle East. Most AI projects fail not because the model is wrong, but because the architecture doesn't hold up in production. I build AI agents and LLM applications that actually work at scale from multi-agent orchestration with CrewAI and AutoGen to RAG pipelines using LlamaIndex, ChromaDB, and Pinecone, to voice agents with Vapi and Twilio. ✦ Services: ✦ AI Agent Systems — LangChain, LangGraph, CrewAI, AutoGen; multi-step reasoning agents, tool-use pipelines, autonomous workflow agents ✦ RAG & Knowledge Systems — LlamaIndex, LangChain, Pinecone, Qdrant, ChromaDB, FAISS; document Q&A, enterprise knowledge bases, semantic search ✦ Voice AI Agents — Vapi, Twilio, Whisper, ElevenLabs; AI phone agents, voice assistants, real-time speech workflows ✦ Workflow Automation — n8n, Make, Zapier; end-to-end business process automation, CRM/ERP integrations ✦ LLM Applications — OpenAI GPT-4o, Claude, Gemini, Llama; custom chatbots, conversational AI, API integrations ✦ Full-Stack AI — FastAPI, Python, Node.js, React; production-grade AI backends and interfaces ✦ Proven results: ✦ Built a LangGraph multi-agent system that automated 90% of a client's content pipeline, saving 40+ hours/week ✦ Deployed a RAG-based enterprise knowledge base (Pinecone + LlamaIndex) reducing support ticket resolution time by 65% ✦ Delivered an n8n + OpenAI workflow automation that replaced 3 manual FTEs for a logistics startup If you're building an AI agent, RAG system, voice AI, or automation workflow, message me with your use case. I'll tell you within 24 hours if and how I can help.

❇️ 100% High-quality work ❇️ I offer comprehensive expertise in designing, implementing, and managing robust network infrastructures and automated DevOps pipelines. My skills ensure seamless operations, enhanced security, and optimized performance for your business needs. Below are my general skills: ❇️ DevOps: GitLab, GitHub, Azure DevOps. Project support, CI/CD ❇️ Optimization of Google Pagespeed, Magento, WordPress, ODOO, Mautic, Drupal, Joomla, Bitrix, Bitrix24, and other CMS ❇️ Operating Systems: Debian, Ubuntu, CentOS, Rocky Linux, AlmaLinux, RedHat, CloudLinux, Gentoo, FreeBSD (administration, configuration, audit, optimization) ❇️ Software Configuration Management: Salt, Ansible ❇️ Web servers: Nginx, Apache, LiteSpeed (installation, configuration, optimization) ❇️ Database servers: MySQL, PostgreSQL, MariaDB, Percona, MongoDB (installation, configuration, optimization, profiling, cluster creation) ❇️ Mail servers: Exim, Postfix, Sendmail, Zimbra, Qmail, Dovecot + Spamassassin, ClamAV ❇️ Webhosting Administration Panels: cPanel / WHM, Plesk, aaPanel, Proxmox, CyberPanel, VestaCP, HestiaCP, ISPManager, Billmanager, ISPConfig, DirectAdmin, Webmin ❇️ Amazon: AWS setup or Amazon tools ❇️ Virtualization: Proxmox, OpenVZ, XEN, KVM, VMWare, VirtualBox, Docker ❇️ Load balancing via: HAproxy, Nginx, Pingora, ProxySQL, PowerDNS, BIND, Route53, Alibaba Cloud DNS ❇️ System Backup and Restore automation ❇️ Network services: DNS (Bind, PowerDNS), VPN (MPD, PPTPD, OpenVPN), firewalls (iptables, ipfw), file server (samba3/4), proxies (Squid, 3proxy, Privoxy, Nginx), DRBD, Ceph, GlusterFS, lsyncd ❇️ Monitoring: Zabbix, Munin, Nagios, Icinga ❇️ FTP: Vsftp, Pureftp, Proftpd Let’s Connect: If you're looking for a reliable and experienced Senior Network Administrator and DevOps Specialist to optimize your network and streamline your development processes, let's discuss how I can add value to your team.