Hire the Best Core Java Developers

Hello! I'm Swastik Srivastava, a Full Stack Developer and Big Data Consultant with over 5 years of experience delivering scalable, high-performance solutions for startups, enterprises, and global clients. I specialize in building robust systems across the Java ecosystem, Big Data architectures, and data-driven marketing platforms. My work spans across multiple domains including Scala + Spark development, data analytics, digital marketing tech stacks, and end-to-end web applications. 🔧 Core Skills & Expertise: Backend: Java (Spring Boot), Scala, Kafka, REST APIs Big Data: Spark, Hadoop, Hive, Flink, Sqoop, Airflow Cloud: AWS (S3, Lambda, Glue), GCP, Azure (Data Factory, Synapse) Frontend: JavaScript, React, HTML/CSS Databases: MySQL, MongoDB, PostgreSQL DevOps: Docker, GitHub Actions, Jenkins, CI/CD Pipelines Digital Marketing Tech: Google Analytics, Meta Ads Reporting, Marketing Funnels, Email Automation Data Analytics: ETL Pipelines, Dashboards, SQL, Python (Pandas), Power BI ✅ Why Work With Me? Proven track record with top-tier clients (e.g., Morgan Stanley via EY) Ability to lead full-stack projects while coordinating with cross-functional teams Clear communicator who ensures on-time, high-quality delivery You work directly with me — I handle communication and project management, while my internal team supports execution for faster turnaround and flexibility 📈 Services Offered: ✅ Java + Spring Boot Microservices Development ✅ Big Data Pipeline Design with Spark, Scala, Kafka ✅ Digital Marketing Data Analysis & Automation ✅ Web Development & Full-Stack Application Builds ✅ Data Analytics Dashboards & Reporting When I'm not coding, I mentor junior developers and love solving challenging backend and data problems. I'm passionate about helping businesses unlock the full value of their data and digital infrastructure. 📩 Let’s connect! Whether you need a quick fix or a long-term technology partner, I’m always open to a conversation to understand how I can help.

- B.tech and M.tech in Computer Science - Worked as a Software engineer in Virtusa Corp & DIGIDEZ - More than 6 years of teaching experience - Oracle Certified Trainer - Helped students placed in FAANG Work Experience on Upwork 1. Wordpress Help "Aniket helped me with some issues on my WordPress project. He identified the issues and provided knowledgeable guidance to get my project on the right path." 2. Automation Project Phil Charles : "Another great session & good progress has been made on my automation project" 3. Technical Support "Aniket has a great work ethic, ensures he has clarity on what is expected, & executes. Great communication & technical skills with regards to my automation project." Thanks!

𝗝𝗮𝘃𝗮 𝗕𝗮𝗰𝗸𝗲𝗻𝗱 𝗗𝗲𝘃𝗲𝗹𝗼𝗽𝗺𝗲𝗻𝘁 🖥️, 𝗦𝗽𝗿𝗶𝗻𝗴 𝗕𝗼𝗼𝘁 🌱, 𝗠𝗶𝗰𝗿𝗼𝘀𝗲𝗿𝘃𝗶𝗰𝗲𝘀 🛠️, 𝗔𝗪𝗦 ☁️, 𝗥𝗘𝗦𝗧 𝗔𝗣𝗜𝘀 🔗 Meet 𝗔𝗱𝗶𝗹, a seasoned developer with over 𝟭𝟯 𝘆𝗲𝗮𝗿𝘀 of experience specializing in designing and building robust Java backend systems. Having completed numerous projects for both startups and Fortune 500 companies, you can rely on my expertise for your backend needs. Struggling with slow or unscalable systems? I bring solutions to ensure you have a reliable, scalable, and secure platform to focus on what truly matters to your product. With a track record of delivering production-ready solutions, I am here to enhance your backend performance. Java Backend Development 🖥️ Develop high-performance Java backend systems with seamless integration and exceptional scalability. Spring Boot 🌱 Utilize the power of Spring Boot to create clean and efficient REST APIs designed for growth. Microservices 🛠️ Architect microservices that simplify scaling and maintenance while addressing performance bottlenecks. AWS ☁️ Deploy and optimize applications on AWS to ensure reliable and cost-effective cloud operations. REST APIs 🔗 Design and implement robust RESTful API structures for efficient and secure data transactions. Interested in collaborating with a backend developer who understands both technical architecture and business impact? Click Invite, and let’s discuss your project. I typically respond within a few hours.

🚀 AVAILABLE FOR JAVA / SPRING BOOT | AWS CLOUD ENGAGEMENTS With over 8 years building backend systems as a Senior Java Developer, I solve complex technical challenges across the full stack from microservices to cloud-native infrastructure. Whether it's designing Spring Boot services, architecting AWS environments, or setting up DevOps pipelines, I bring the expertise that every Java Developer must have, combined with the cloud and infrastructure skills that modern systems demand. 𝗣𝗿𝗼𝗳𝗲𝘀𝘀𝗶𝗼𝗻𝗮𝗹 𝗕𝗮𝗰𝗸𝗴𝗿𝗼𝘂𝗻𝗱: ➡ Over 8 years as a Java Developer in end-to-end software development across the full delivery cycle. ➡ Designing Spring Boot microservices and high-performance Java applications for fintech, healthcare, SaaS, and e-commerce as a Java Backend Develope and now extending that into cloud engineering and DevOps. ➡ AWS Cloud Engineer - EC2, S3, Lambda, SQS, SNS, IAM, API Gateway, CloudFormation. I design and run cloud infrastructure, not just deploy to it. ➡ DevOps & CI/CD - Docker, Kubernetes (K8s), Helm, Terraform, Jenkins, Azure DevOps, OpenShift. Working with both AWS DevOps and Azure DevOps pipelines that ship code reliably. ➡ Network engineering in cloud environments 𝗟𝗲𝗮𝗱𝗲𝗿𝘀𝗵𝗶𝗽 𝗮𝗻𝗱 𝗙𝗼𝗰𝘂𝘀: ➡ Led cross-functional teams as a Senior Java Developer, delivering clean architecture and scalable cloud-connected solutions. ➡ Guided developers in Spring Boot, Java, and React as a lead Java Backend Developer, maintaining enterprise-grade quality standards. ➡ Consistently raised team output by implementing the best practices any Senior Java Developer is expected to own. 𝐏𝐫𝐨𝐠𝐫𝐚𝐦𝐦𝐢𝐧𝐠 𝐋𝐚𝐧𝐠𝐮𝐚𝐠𝐞𝐬 & 𝐅𝐫𝐚𝐦𝐞𝐰𝐨𝐫𝐤𝐬 As a Java Backend Developer I work with: ✅ Languages: Java, Java 8, Java 11, Java SE, Java EE, JavaFX, SQL, JSON, XML, YAML, Python ✅ Frameworks: Spring (Spring Boot, Spring MVC, Spring Data, Spring Cloud, Spring Security, Spring AOP, Spring Batch, Spring WebFlux), Hibernate, JPA, Quarkus, React, Node.js As a Senior Java Developer, I use these to build enterprise applications that are maintainable, scalable, and secure. 𝐂𝐥𝐨𝐮𝐝, 𝐃𝐞𝐯𝐎𝐩𝐬 & 𝐈𝐧𝐟𝐫𝐚𝐬𝐭𝐫𝐮𝐜𝐭𝐮𝐫𝐞 ✅ AWS Cloud Engineer: EC2, S3, SQS, SNS, Lambda, IAM, RDS, API Gateway, CloudWatch, CloudFormation ✅ Azure Cloud Engineer: Azure DevOps, Azure Kubernetes Service ✅ Google Cloud Engineer: GCP core services ✅ Kubernetes, Helm, Docker, Terraform, Jenkins, Maven, Gradle, Git (GitLab, Bitbucket) ✅ AWS DevOps & Azure DevOps pipelines, OpenShift, Infrastructure as Code 𝐃𝐚𝐭𝐚𝐛𝐚𝐬𝐞𝐬 & 𝐌𝐞𝐬𝐬𝐚𝐠𝐢𝐧𝐠 ✅ MySQL, PostgreSQL, MongoDB, Redis, DynamoDB ✅ Kafka, RabbitMQ, REST APIs, SOAP, gRPC, WebSockets 𝐀𝐫𝐜𝐡𝐢𝐭𝐞𝐜𝐭𝐮𝐫𝐚𝐥 𝐏𝐚𝐭𝐭𝐞𝐫𝐧𝐬 & 𝐏𝐫𝐢𝐧𝐜𝐢𝐩𝐥𝐞𝐬 ✅ Architectures: Microservices, Event-driven, SOA, Monoliths ✅ Patterns: CQRS, Saga, Circuit Breakers, Service Discovery, Distributed Systems ✅ Principles: SOLID, Clean Code, Domain-Driven Design (DDD) A Java Developer must master these to deliver systems that scale that's what I build every day. 𝐃𝐞𝐯𝐞𝐥𝐨𝐩𝐦𝐞𝐧𝐭 𝐏𝐫𝐚𝐜𝐭𝐢𝐜𝐞𝐬 ✅ Testing: JUnit, Mockito, TestNG, Unit & Integration Testing ✅ Methodologies: Agile (Scrum, Kanban), TDD, BDD ✅ Version Control: Git, GitLab, Bitbucket My workflow as a Senior Java Developer runs on Agile principles and a test-first mindset, producing applications that are production-ready from day one. 𝐀𝐫𝐞𝐚𝐬 𝐨𝐟 𝐀𝐜𝐭𝐢𝐯𝐢𝐭𝐲 Backend development • Full-stack development with Spring Boot + React • AWS cloud engineering • Azure cloud engineering • Google cloud engineering • DevOps & CI/CD • Network engineering • API integration • Cloud-native applications • SaaS platforms • Android Java development As a Senior Java Developer and aws cloud engineer, I cover the full path from backend code to cloud deployment. 𝐈𝐧𝐝𝐮𝐬𝐭𝐫𝐢𝐞𝐬 During my career as a Java Backend Developer I've worked across: Fintech • Healthcare • E-commerce • Enterprise Applications • Cloud Computing • Telecommunications • Logistics • Travel & Hospitality • Media • Automotive • Blockchain • IoT • SaaS • Retail 𝐒𝐩𝐞𝐜𝐢𝐚𝐥𝐢𝐳𝐚𝐭𝐢𝐨𝐧𝐬 & 𝐑𝐨𝐥𝐞𝐬 ✔ Senior Java Developer ✔ Java Spring Boot Developer ✔ Java Backend Developer ✔ AWS Cloud Engineer / AWS DevOps Engineer ✔ Azure Cloud Engineer / Azure DevOps ✔ Google Cloud Engineer ✔ Kubernetes & Network Engineer ✔ API Developer ✔ Full-Stack Developer (Spring Boot + React) ✔ Android Java App Developer 𝐒𝐞𝐫𝐯𝐢𝐜𝐞𝐬 ✔ Java Development Services ✔ Spring Boot Microservices Development ✔ AWS Cloud Engineering & Migration ✔ AWS DevOps / Azure DevOps Pipeline Setup ✔ Kubernetes Cluster Management ✔ Infrastructure as Code (Terraform) ✔ API & System Integration ✔ SaaS Application Development ✔ Android Java App Development ✔ Performance Tuning & Code Reviews 👉 Need a Java Developer who writes clean code and ships it to the cloud? Just drop me a message

Over the last 14 years, I have almost completed 42 android projects for different businesses and personal use of my clients. Great experience in Java, Kotlin , Jetpack Compose, Dagger HILT and other architectural component, View Based Systems, Android SDK, Google's Android related service and Android Studio. I always welcome new ideas and love to convert them in smart android application. During different applications development period I have gone through many different challenges and finish all of them with my smart work. I have been work in all below area and also willing to explore more with new things. Material Design with backward compatibility, Jetpack Compose, Navigation Component, Dagger HILT, Paging 2 and Paging 3, SQL/SQLite databases, JSON Bese data parsing, RestFull Web service integration, Room, Audio/Video Streaming, ExoPlayer, Face Recognition and OCR, Social Network - Facebook, Twitter integration, Google Map and other Google services, Other open source library integration and modification according to requirement. I am familiar with MVVM,MVC and Clean architecture pattern. I have developed some of my apps with MVVM + CLEAN architecture, including all layers, such as Presentation, Data and Domain. I have hands on experience in Kotlin Flow, LiveData and Coroutine. I am cost effective but quality work provider.

Java sits at the center of the platforms I build. Spring Boot runs the backend services and APIs, handling business logic, data access, and the core behavior of the system. Many of these platforms pair a Spring Boot backend with Angular on the frontend, forming structured web applications such as internal dashboards, operational platforms, and SaaS systems used by teams every day. Angular provides the application interface while the Java backend manages services, data, and integrations behind the scenes. Python also comes into play when automation or data workflows are needed. Small services and scripts written in Python handle background tasks, integrations, and operational processes that support the main platform. Java and Spring Boot handle the backend services, Angular runs the platform interface, and Python supports automation and background tasks.