JOB DESCRIPTION
Nature of Work:
This being an advanced level position in the S/W development team the individual is expected to:
∙ Participate as a team member in all phases of the S/W lifecycle, including the analysis and design of S/W systems.
∙ Participate in a detailed level of coding, code walk – through and unit testing of S/W modules.
∙ Participate in integrated testing of product/ package.
∙ Participate in difficult and typical coding assignments with responsibility of a small module consisting of 3 – 5 members.
∙ Participate in exploration/ feasibility study of products.
∙ Have a thorough understanding of the assigned product/ project.
∙ Participate in generating technical documentation of products/ packages.
∙ Providing technical training to the juniors.
∙ Manage allocated resources, keep compliance with discipline and decorum of the organization.
∙ Keep compliance with Systems and Procedures.∙ Thorough knowledge of current technological trends in Web based Software
∙ Strong Working knowledge of JSF/JSP, Servlets, Spring, Web application development and Core Java
• Working knowledge of working with databases using EJB.
• Knowledge of Bug Tracking tool such as Jira, Bugzilla and source code version control systems (SVN, GIT)
• Knowledge of working in Scrum methodology.
• Good to have knowledge of SonarQube and Web Security Aspects.
• Knowledge of Responsive Front End Development using HTML5, JavaScript, CSS3, JQuery, Ajax and JSON.
• Should be able to write test cases for the feature.
∙ Ability to gather and analyze data & draw logical conclusions
∙ Understanding of company’s vision & goals, business operations∙ Clear and concise oral and written communication skills
∙ Ability to establish and maintain effective work relationships at
all levels
∙ Great passion for S/W development.
∙ Ability to mentor and guide the juniors.
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Job Title : Senior Java Developer
Experience : 5 to 12 Years
Shift Timing : 01:00 PM – 10:00 PM
Domain : Clinical Research
Location : Noida, Gurugram & Pune
Work Mode : Hybrid
Job Summary :
We are seeking an experienced Senior Java Developer to join the software team of a leading Clinical Research organization.
The role involves application development and feature enhancement for enterprise products, ensuring high performance, scalability, and code quality.
Mandatory Skills :
Java 8+, Hibernate, Oracle Database, PostgreSQL, JAX-RS (RestEasy), Jackson, REST APIs, JSP, React.js, GitHub, GitHub Actions, SonarQube, SonarLint, and basic AWS services (IAM, SNS, SQS, S3, CloudWatch).
Key Responsibilities :
- Develop and enhance enterprise applications using Java technologies.
- Design and implement RESTful APIs and integrate backend services.
- Write and optimize SQL queries for Oracle and PostgreSQL databases.
- Build and maintain UI components using JSP and React.js.
- Manage source code and CI/CD pipelines using GitHub and GitHub Actions.
- Ensure code quality and maintainability using SonarQube and SonarLint.
- Work with AWS services to support application deployment and monitoring.
- Collaborate with cross-functional teams to deliver high-quality solutions.
Required Skills :
- Strong experience with Java 8 or above and Hibernate framework.
- Hands-on experience with Oracle Database and PostgreSQL, including advanced query writing.
- Proficiency in JAX-RS (RestEasy) and Jackson for REST API and JSON processing.
- Experience in developing web applications using JSP.
- Knowledge of React.js for frontend development.
- Experience with GitHub and GitHub Actions for version control and CI/CD.
- Familiarity with SonarQube and SonarLint for code quality analysis.
- Basic hands-on experience with AWS services, including IAM, SNS, SQS, S3, and CloudWatch.
- Ability to work effectively in a collaborative and fast-paced environment.
About Techjays
At Techjays, we build production-grade AI platforms for global clients. We operate at the intersection of backend engineering, distributed systems, and applied AI — delivering secure, scalable, and enterprise-ready intelligent systems. Our team has built and scaled products at Google, Akamai, NetApp, ADP, Cognizant, and Capgemini.
About the Role
This is not a feature-delivery role. We are looking for an AI Lead who can architect, own, and scale intelligent backend systems end-to-end. You will drive both technical direction and execution — working across LLM integrations, RAG pipelines, agentic AI workflows, and cloud-native backend systems for global clients.
What You'll Do
- Architect and scale backend systems powering AI-driven applications
- Design and implement RAG pipelines, AI agents, and LLM integrations
- Own systems end-to-end — from architecture to deployment and scaling
- Integrate and optimize LLMs (Claude, GPT, Gemini) for real-world production use cases
- Build high-performance distributed systems with observability and cost efficiency
- Lead backend and AI initiatives with strong technical ownership
- Mentor engineers and raise the technical bar across teams
- Collaborate with product and AI teams to deliver AI-native solutions
What We're Looking For
- 6–10 years of strong backend engineering experience
- Hands-on expertise in Python (FastAPI / Django / Flask)
- Deep understanding of Generative AI and LLM-based systems
- Strong experience with RAG pipelines and Vector Databases (Pinecone, FAISS, ChromaDB, Weaviate)
- Solid knowledge of Agentic AI — building autonomous agents and multi-agent workflows
- Proficiency in AWS or GCP in production environments
- Experience with distributed systems, microservices, and system design
- Strong grasp of Data Structures, Algorithms, and Design Patterns
- Familiarity with WebSockets, Git, Linux/Unix, and CI/CD
Nice to Have
- Experience with Anthropic Claude API and Claude Code
- Familiarity with real-time data systems or streaming (Kafka, etc.)
- MLOps and AI system lifecycle experience
- Optimizing AI systems for latency, cost, and scalability
Who You Are
- You think in systems, not just features
- You take full ownership of what you build
- You are comfortable navigating fast-moving, ambiguous environments
- You stay updated with the latest in Generative AI and backend technologies
- Strong communicator who can collaborate across teams and global clients
What We Offer
- Competitive compensation (Best in Industry)
- Work on production-grade AI systems used by global clients
- Exposure to cutting-edge AI tools and frameworks
- A culture that values clarity, integrity, and continuous growth
Senior Software Engineer Full stack/ Java track/ UI/ Android
Skills required: -
-
Good design skills and exposure to multiple software architectures. -
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Strong understanding of OO/ knowledge of frameworks such as Spring/ Spring Boot/ design and good software development practices. -
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Strong core server-
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side technologies experience (Java) and/or having any of front end/UI skills (Angular, JS, HTML). Knowledge of Android is a huge plus. -
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Strong database skills including schema design. -
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Strong knowhow of data-structures and algorithms. -
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Experience with configuration management, testing, deployment. -
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Hands on development across technologies. -
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Exp- 4-6yrs . -
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Grad- B.E/ B.Tech (Computer Science/ Equivalent) from a premier institute.
Aternately: -
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Strong UI architecture and design skills and keen business sense. -
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Excellent front end/UI skills (JS, HTML, Angular, Flutter) and OR Android skills. -
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Good knowledge of nodeJS. -
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Good knowhow of server-side technologies, exposure to databases. -
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Good exposure to configuration management, testing, deployment. -
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Deep knowhow of data structures, algorithms. -
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Hands on development across technologies. -
-
Exp- 4- 6 Yrs
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Grad - B.E/ B.Tech (Computer Science/ Equivalent) from a premier institute.
- Strong experience in Core Java, Multi-Threading, data structures (List/Map/Set) and unit testing
- with (Junit, Mockito)
- Strong experience with Spring Framework (Spring MVC, Spring REST, Spring Data), ORM
- frameworks (JPA, Hibernate) and RDBMS (Oracle/MySQL/Postgres)
- Strong experience in applying Object-Oriented design principles and Design Patterns
- Good knowledge of Multi-Tier architecture, Micro Services architecture and Service Oriented
- Architecture
- Exposure to AWS Cloud, NoSQL Database (Mongo, Cassandra), Message Broker (Active
- MQ/RabbitMQ/Apache Kafka) and Big Data Technologies (Hadoop/Hive/Spark)
- Additionally, must possess capability to review code, produce technical specification document
- and knowledge of code quality tools (PMD/FindBugs/Sonar)
- Very Strong hands-on knowledge of core PHP, MySql
- Very Strong knowledge of JSON, JQuery, AJAX, HTML-5 CSS-3, JavaScript, Bootstrap
- Very Strong knowledge of responsive websites
- Knowledge of WordPress (added advantage)
- Strong knowledge of cross-platform integration with various platforms
- Excellent logical and analytical skills
- Strong knowledge of IDEs being used in PHP development
- Knowledge of PHP Frameworks will be an added advantage.
- Strong knowledge and hands-on Oops concepts and MVC Design Patterns
- Good knowledge of Data structures and algorithms.
- Strong communication skills
As a Backend Developer, you will work on the latest and greatest in high performance
web development, data science, community development and mobile technologies.
What you will do:
- Playing a part in defining software architectures – collaborate with leads to explore existing systems, determine areas of complexity, uncover potential risks to successful implementation, and learn the applications’ capabilities.
- Implementing solutions as per technical design for new features and changes to existing components.
- Participating in the full development lifecycle of new functionality and enhancements to existing applications.
- Committing to producing high quality, highly performing and robust software within agreed time estimates and to agreed quality standards.
- Managing all stakeholder expectations.
- Working alongside global teams.
- Taking responsibility for successful delivery.
- Being able to work in a fast paced Agile/SCRUM environment.
- Following coding standards, building appropriate unit tests, integrating tests and deployment scripts.
- Assisting in defining software architectures – Collaborating with leads to explore existing systems, determining areas of opportunities.
- Translating designs and style guides provided by the Design team into functional user interfaces, ensuring cross browser compatibility and performance.
- Contributing to continual improvement by suggesting improvements to user interface, software architecture or new technologies.
What you need to have:
- Ability to fluently code in Java Spring or similar J2EE frameworks.
- Solid knowledge of application deployment in AWS cloud, Kubernetes, Docker.
- Ability to code in ReactJS or similar Javascript frameworks.
- Proven experience with responsive design, fullstack web development, consumption/creation of RESTful APIs.
- Bachelor’s or Master’s degree in Computer Science or related engineering field w/experience in software development.
- 3-7 years of experience developing customer facing web applications.
- 3-7 years of experience in Java Spring or similar J2EE frameworks.
- 3-7 years of experience in front-end development using JavaScript, knowledge of various JavaScript libraries and micro frameworks (React, Angular, Backbone), HTML and CSS.
- 3-7 years of experience coding using object-oriented and aspect-oriented programming, architecture and design patterns.
- Strong understanding of RESTful API principles.
- Strong understanding of security best practices.
- Strong experience with unit testing and end-to-end testing.
- Knowledge of : Programming languages Java 8, J2EE, Node.js, Design Patterns, HTML, CSS, JavaScript Web and cloud Technologies RESTful web services, Cloud functions, Amazon Web Services, SEO/ Sitemap, Serverless
- architecture, JSON Database Management MySQL, PostgreSQL, Elasticsearch, Firebase realtime database, Hibernate, Liquibase, Percona, Redis, Memcached Frameworks, Libraries and Tools Dropwizard, Jersey,
- Expressjs, RabbitMQ Web / Application Server Nginx Other Tools and Utilities Eclipse, VS Code, Postman, Git, Gradle, Maven, Imagemagick, Jmeter Operating Systems Linux, Windows.
- Experience in implementing Material Design UI and UX for customer centric frontend.
- Proven hands-on Software Development experience
- Proven working experience in Java development
- Hands on experience in designing and developing applications using Java EE platforms
- Object Oriented analysis and design using common design patterns.
- Profound insight of Java and JEE internals (Classloading, Memory Management, Transaction management etc)
- Excellent knowledge of Relational Databases, SQL and ORM technologies (JPA2, Hibernate)
- Experience in the Spring Framework
- Experience as a Sun Certified Java Developer
- Experience in developing web applications using at least one popular web framework (JSF, Wicket, GWT, Spring MVC)
- Experience with test-driven development
As a Java Developer, you will be responsible for developing cutting edge health-tech applications that include high scale transaction processing, intelligent bot based programs and data analytics.
What you will do:
- Building components for the company’s advanced health tech platform using Java, Solr, SpringBoot, DialogFlow
- Communicating effectively in a cross-functional product development team and presenting ideas and solutions effectively
- Prioritizing and managing workload and meeting critical project milestones and deadlines
- Effectively collaborating with a team as well as taking initiative and working independently to solve problems
Desired Candidate Profile
What you need to have:- B.Tech/ B.E. (with 65% marks)
- Expertise at hands on programming in JAVA and J2EE
- Proven expertise in Java interfaces with MongoDB (or similar noSQL databases) as well as relational databases (mySQL, Postgres etc)
- Experience in atleast one 6+ months development project involving SpringBoot and Hibernate
- Strong understanding of application server infrastructure
- Good working knowledge of Maven based build systems
- Good understanding of build and deployment pipelines that involve ANT and Jenkins
- Understanding of code versioning tools, such as Git or SVN
- Good knowledge of working on Rest API’s, Webservices
- Excellent problem-solving and interpersonal skills
- Hands on experience with Lucene/ Solr
- Familiarity with DiagFlow based chat bot building
- Knowledge of NLP
- Experience in product based companies
Who We are?
At e6data (https://e6x.io/" target="_blank">https://e6data.io) we’re building core algorithms that make querying 25 - 200X more performant (i.e. faster and/or cheaper) than every other analytics platform in the world. This results in billions of dollars of value unlocked across faster analytics, savings on computing/infra, and new use cases become possible.
Our core team has 100+ years of combined experience and 10+ patents across diverse but complementary disciplines like real-time databases, time-series databases, SQL OLAP engines, distributed computing platforms, stream processing, and log analytics. Two of the founding team are second-time founders with past exits.
We are passionate about solving the deepest and most important problems in computer science and believe in making our technology available to customers regardless of their location, size, or budget. Our vision is for e6data to power every analytical workload in the world - regardless of deployment scenario (cloud, on-premise, edge), across every use case (end-user queries, ETL / data pipelines), and every latency requirement (batch, streaming / real-time).
What you will do?
- Write awesome code
- Your primary focus will be on building our product around our core algorithms. You will collaborate with our Performance Engineering and DevOps teams.
- Identify tactical and long-term product improvements (could be code, script, etc.) so that e6data development is based on frictionless onboarding of customers
- Build our internal Data Platform using e6data
- Adding scalable functionality to the core e6data engine for new features like UDFs, SQL functions, etc
What we are looking for?
- Worked with Java for a minimum of 4 years
- Knowledge of SQL Query planning will also be good to have
- A passion for continuous learning and growth (both at a personal and team level)
- Strong team player
- Experience (or enjoys) working in a startup will be an added advantag











