Java Developer

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

About Company

Our client is in the business of delivering cutting-edge software solutions, hardware systems, and IT services. It lends the right technological edge to governments and businesses. This enables them to achieve their organizational objectives efficiently and effectively to scale their businesses to newer heights.

Minimum Requirements/Qualifications:

• Bachelor’s/Master’s degree in computer science, Computer Engineering or a related field is preferred.

• Must have at least 5 to 7 years of experience in application development (Java,Spring Framework), Deployment(Apache Tomcat & Nginx)

• Sound knowledge of Object-Oriented Programming (OOP) Patterns and Concepts.

• Knowledge & hands-on experience of Java, Spring Framework, Spring Security, JSP, Apache Tomcat, Nginx is a must.

• Must have experience with Bootstrap CSS, jQuery etc.

• Basic Understanding of PostgreSQL, MVC (Model-View-Controller) Pattern, JDBC (Java Database Connectivity), and RESTful web services.

• Relevant Knowledge of Java GUI frameworks according to project requirements.

• Experience in handling external and embedded databases.

Roles & Responsibilities

• Develop new modules, patches & Updates/upgrades for an existing application (developed in-house by the client)

• Bug fixing, and updating of software.

• Analyze user requirements to define business objectives.

• Maintain Java-based applications that can be high-volume and low-latency.

• Identify and resolve any technical issues arising.

• Write well-designed, testable code.

• Conducting software analysis, programming, testing, and debugging.

• Support continuous improvement, investigating alternatives and technologies, and presenting for architectural review.

Greetings! from Gohoardings Solution LLP. we are looking for a java developer candidate.

Responsibilities-

• Develop and implement new software programs
• Maintain and improve the performance of existing software
• Clearly and regularly communicate with management and technical support colleagues
• Design and update software database
• Test and maintain software products to ensure strong functionality and optimization
• Recommend improvements to existing software programs as necessary

Required-

• Bachelor’s Degree in Computer Science required or in any specialization.
• 2+ years’ experience in web and software development
• Demonstrated knowledge of web technologies, such as HTML, CSS and Javascript
• Ability to work independently and multi-task effectively
• Demonstrated understanding of projects from the perspective of both client and business
• Flexible and willing to accept a change in priorities as necessary
• Strong attention to detail

About this roleWe are seeking an experienced MongoDB Developer/DBA who will be

responsible for maintaining MongoDB databases while optimizing performance, security, and

the availability of MongoDB clusters. As a key member of our team, you’ll play a crucial role in

ensuring our data infrastructure runs smoothly.

You'll have the following responsibilities

 Maintain and Configure MongoDB Instances - Responsible for build, design, deploy,

maintain, and lead the MongoDB Atlas infrastructure. Keep clear documentation of the

database setup and architecture.

 Ownership of governance, defining and enforcing policies in MongoDB Atlas.Provide

consultancy in drawing the design and infrastructure (MongoDB Atlas) for use case.

 Service and Governance wrap will be in place to restrict over provisioning for server size,

number of clusters per project and scaling through MongoDB Atlas

 Gathering and documenting detailed business requirements applicable to the data

layer.Responsible for designing, configuring and managing MongoDB on Atlas.

 Design, develop, test, document, and deploy high-quality technical solutions on the

MongoDB Atlas platform based on industry best practices to solve business needs.

Resolves technical issues raised by the team and/or customer and manages escalations as

required.

 Migrate data from on-premise MongoDB and RDBMS to MongoDB AtlasCommunicate

and collaborate with other technical resources and customers in providing timely updates

on status of deliverables, shedding light on technical issues, and obtaining buy-in on

creative solutions.

 Write procedures for backup and disaster recovery.

You'll have the following skills & experience

 Excellent analytical, diagnostic skills, and problem-solving skills

 Should understand the Database concept and develop expertise in designing and

developing NoSQL databases such as MongoDB

 MongoDB query operation, import and export operation in database

 Experience in ETL methodology for performing Data Migration, Extraction,

Transformation, Data Profiling and Loading

 Migrating database by ETL, migrating database by manual process and designing,

development, implementation

 General networking skills, especially in the context of a public cloud (e.g. AWS – VPC,

subnets, routing tables, nat / internet gateways, dns, security groups)

 Experience using Terraform as an IaC tool for setting up infrastructure on AWS

CloudPerforming database backups and recovery

 Competence in at least one of the following languages (in no particular order): Java, C++,

C#, Python, Node.js (JavaScript), Ruby, Perl, Scala, Go

 Excellent communication skills, often being able to compromise but draw out risks and

constraints associated with solutions. Be able to work independently and collaborate with

other teams

 Proficiency in configuring schema and MongoDB data modeling.

 Strong understanding of SQL and NoSQL databases.

 Comfortable with MongoDB syntax.

 Experience with database security management.

 Performance Optimization - Ensure databases achieve maximum performance and

availability. Design effective indexing strategies.

Job Description: 

3+ years of experience as a JAVA/J2EE technologies developer in delivering highly available and scalable applications in a cloud operating environment. - Expertise in Spring framework and equivalent. 

• Experience in developing Java Microservices using spring boot, docker, Kubernetes etc. 
• Programming expertise in Java, JavaScript; and familiarity with other languages.
• Experience building, testing, and consuming REST APIs is a must have experience. 
• Experience with high-throughput messaging technologies and patterns; Kafka and/or related technologies a plus. 
• Exposure to databases of any types relational, analytical, columnar, etc; including MySql. 
• Experience with Git source control and building/maintaining Continuous Integration and Delivery pipelines; Jenkins experience a plus. 
• Expertise in Object-Oriented Development. 
• Experience working in an Agile/Scrum-inspired delivery methodology. - Expertise with database programming, transaction management. Expertise with build tools – MAVEN, Gradle. 
• Expertise in design patterns and data structures. 
• Good understanding of Unit test tools. 
• Good analytical skills to break down requirements and solve complex problems. 
• Good understanding of Source control toolsets. 
• Well-developed verbal and written communication skills. 
• Proven track record to meet aggressive timelines.

Required Skills:

Good to have

• Understanding CI tools like Jenkins, Bamboo. 
• Experience with Google Cloud Platform or equivalent. 
• Experience with Microservices and/or Monolith to Microservice migration.
• Experience with frontend technologies like to react, angular is a plus
• Good Linux experience

1. 0 to 2 years of experience into Java 6/7/8, J2EE, EJB, Servlets, JSP, JDBC, LOG4J, SQL, PL/SQL, XML, XSLT, JSON,
2. Good to have strong experience in Core Java SpringBoot, Spring framework
3. knowledge of Spring MVC, Spring REST, JDBC Templates
4. Knowledge of Java/J2EE Design patterns
5. knowledge of implementation of WebServices like REST will be added advantage
6. Good knowledge of Relational Databases like MySQL, PostgreSQL, MS SQL Server with complex SQL Queries, Stored Procedure, Triggers
7. Knowledge of Unit Test Cases is added advantage
8. Knowledge of build tools like Maven, Gradle, Ant
9. Knowledge of any one or more of MongoDB, Cassandra, Neo4J, Redis, Kafka, ActiveMQ, Caches, Microservices will be a major plus
10. Good to have knowledge of ORM like Hibernate
11. Knowledge and experience in nodejs backend will be added advantage

Requirements :

1. Must be a good team player and self-motivated Individual
2. Very Strong analytical abilities and interpersonal skills
3. Strong verbal and written communication skills with other developers and business clients
4. High commitment levels

Design and develop robust services in coordination with front-end developers, ensuring the production and development of high-quality and well-tested code

Design, develop and test features alongside other technical departments

Lead the department in the design, development, deployment, and operation of services used by our users

Optimise APIs for any applications while creating and maintaining unit tests for new code as well as fix defects

Participate in the continuous integration of automated builds and deployments, ensuring that deliverables meet functional and design requirements and specifications of the site/software. Work with engineering leadership in solving and architecting solutions for challenging or complex site/software development issues.

Take initiatives in developing and maintaining integrations of best practices within the backend department