Backend Engineer

Java Developer – Job Description Wissen Technology is now hiring for a Java Developer - Bangalore with hands-on experience in Core Java, algorithms, data structures, multithreading and SQL. We are solving complex technical problems in the industry and need talented software engineers to join our mission and be a part of a global software development team. A brilliant opportunity to become a part of a highly motivated and expert team which has made a mark as a high-end technical consulting. Required Skills: • Exp. - 4 to 7 years. • Experience in Core Java and Spring Boot. • Extensive experience in developing enterprise-scale applications and systems. Should possess good architectural knowledge and be aware of enterprise application design patterns. • Should have the ability to analyze, design, develop and test complex, low-latency client facing applications. • Good development experience with RDBMS. • Good knowledge of multi-threading and high-performance server-side development. • Basic working knowledge of Unix/Linux. • Excellent problem solving and coding skills. • Strong interpersonal, communication and analytical skills. • Should have the ability to express their design ideas and thoughts. About Wissen Technology: Wissen Technology is a niche global consulting and solutions company that brings unparalleled domain expertise in Banking and Finance, Telecom and Startups. Wissen Technology is a part of Wissen Group and was established in the year 2015. Wissen has offices in the US, India, UK, Australia, Mexico, and Canada, with best-in-class infrastructure and development facilities. Wissen has successfully delivered projects worth $1 Billion for more than 25 of the Fortune 500 companies. The Wissen Group overall includes more than 4000 highly skilled professionals. Wissen Technology provides exceptional value in mission critical projects for its clients, through thought leadership, ownership, and assured on-time deliveries that are always ‘first time right’. Our team consists of 1200+ highly skilled professionals, with leadership and senior management executives who have graduated from Ivy League Universities like Wharton, MIT, IITs, IIMs, and NITs and with rich work experience in some of the biggest companies in the world. Wissen Technology offers an array of services including Application Development, Artificial Intelligence & Machine Learning, Big Data & Analytics, Visualization & Business Intelligence, Robotic Process Automation, Cloud, Mobility, Agile & DevOps, Quality Assurance & Test Automation. We have been certified as a Great Place to Work® for two consecutive years (2020-2022) and voted as the Top 20 AI/ML vendor by CIO Insider. 

Supercharge Your Career as a Sr. Dev Engg – Java at Technoidentity!

Are you ready to solve people challenges that fuel business growth? At Technoidentity, we’re

a Data+AI product engineering company building cutting-edge solutions in the FinTech

domain for over 13 years—and we’re expanding globally. It’s the perfect time to join our

team of tech innovators and leave your mark

What’s in it for You?

We are looking for a skilled Java Backend Engineer who is passionate about building scalable, high-performance applications. The ideal candidate should have strong expertise in Java, data structures, databases, and modern frameworks, along with experience deploying solutions on AWS and managing CI/CD pipelines.

What Will You Be Doing?

• Design, develop, and maintain backend services using Java and Spring frameworks.
• Implement efficient algorithms and data structures for complex problem-solving.
• Integrate and manage relational databases (preferably RDS) with Java applications.
• Deploy and manage services on AWS infrastructure (EC2, SQS, RDS, etc.).
• Implement and maintain CI/CD pipelines (Jenkins or similar) for seamless delivery.
• Collaborate with cross-functional teams to design scalable solutions.
• Ensure code quality, performance, and security best practices.
• Contribute to code reviews, documentation, and knowledge sharing.

What Makes You the Perfect Fit?

• Strong proficiency in Java and data structures/algorithms.
• Hands-on experience with Spring frameworks (Spring Boot, Spring MVC, Spring Data, etc.).
• Proficiency in working with databases (SQL, schema design, query optimization).
• Practical experience with AWS services (EC2, SQS, RDS, IAM, etc.).
• Experience in setting up and maintaining CI/CD pipelines (Jenkins, GitHub Actions).
• Good understanding of version control using Git/GitHub.
• Solid problem-solving and debugging skills.
• Excellent communication and teamwork skills.

Preferred Qualifications

• Experience with microservices architecture.
• Exposure to containerization (Docker, Kubernetes).
• Knowledge of monitoring and logging tools (CloudWatch, ELK, Prometheus, etc.).

Roles and Responsibilities:

1. Contribute in all phases of the development lifecycle
2. Write well designed, testable, efficient code
3. Ensure designs comply with specifications
4. Prepare and produce releases of software components
5. Support continuous improvement by investigating alternatives and technologies and presenting these for architectural review
6. Ensure continual knowledge management
7. Adherence to the organizational guidelines and processes

Skills /Competencies: a. Bachelor/Master’s degree with good experience in computer programming b.4+ years working experience in application development using Java

Essential Skills:

1. Hands on experience in designing and developing applications using Java EE platforms
2. Object Oriented analysis and design using common design patterns.
3. Profound insight of Java and JEE internals (Data structure, Algorithm and time complexity, Memory Management, Transaction management etc)
4. Excellent knowledge of Relational Databases, SQL and ORM technologies (JPA2, Hibernate)
5. Experience in the Spring Framework
6. Experience in developing web applications using at least one popular web framework (JSF, Wicket, GWT, Spring MVC) and UI technology (Angular/React JS)
7. Ability to operate independently while establishing strong working relationships with co-workers and cross-functional teams
8. Strong organizational and prioritization skills
9. Demonstrate critical attention to detail and deadlines, and are self-motivated
10. Ability to adapt to changes in direction and priorities in a project and deadline-oriented environment
11. Strong written and verbal English communication skills
12. Problem-solving attitude

Preferred skills Good to have –

1. Knowledge in any UI technology (Angular, React, JS)
2. Intermediate level knowledge of Unix environment (User commands, not System Admin commands)
3. Understanding of capital markets and middle/back office processes in the financial services space

 Hiring: Java Developer (Spring Boot, AWS, Microservices) 🚀

📍 Location: [Specify Location] | 💼 Experience: [4+] Years | 🏢 Full-time

We’re looking for a Java Developer to build scalable, cloud-based applications using Spring Boot, Microservices, and AWS. If you love coding, designing robust APIs, and working with cutting-edge tech, join us!

🔹 Must-Have: Java, Spring Boot, Microservices, AWS

🔹 Good-to-Have: Docker, Kubernetes, CI/CD

Position: Sr. Java Developer

Qualification: BE, B. Tech, MCA, M. Tech

Experience: 6+ Years

Skills:

Java 8+, Microservices, Spring Boot, Nosql, Kubernetes, AWS, REST

Job Role and Responsibilities:

• Bachelor’s degree in Computer Science or equivalent
• Min 6 years of development experience in Spring Boot & Microservices architecture
• Working experience with Java, Spring Boot, Hibernate, MySQL, Spring Data JPA, AWS, Spring Cloud, Maven, GitHub, Swagger, Eureka, Zuul etc.
• Strong understanding of API Security for Microservices (Spring Security, OAuth 2.0, JWT)
• Strong understanding of web development cycle and programming techniques and tools
• Ability to work independently or with group

• Strong understanding of modern development methodologies and best industry standards
• Experience working with APIs, RESTful APIs & Microservices
• Experience building highly scalable applications using Redis, Kafka, Akka, gRPC
• Mentor, Train 3-4 engineers 
• AWS knowledge is a plus
• Strong knowledge on SQL and NoSQL Databases
• Should have worked on developing large scale products and services
• Knowledge on Agile processes is a must
• Able to work with multiple distributed teams

Responsibilities:

 Develop and maintain high-quality, scalable, and efficient Java codebase for our ad-serving platform.

 Collaborate with cross-functional teams including product managers, designers, and other developers to

understand requirements and translate them into technical solutions.

 Design and implement new features and functionalities in the ad-serving system, focusing on performance

optimization and reliability.

 Troubleshoot and debug complex issues in the ad server environment, providing timely resolutions to ensure

uninterrupted service.

 Conduct code reviews, provide constructive feedback, and enforce coding best practices to maintain code quality

and consistency across the platform.

 Stay updated with emerging technologies and industry trends in ad serving and digital advertising, and integrate

relevant innovations into our platform.

 Work closely with DevOps and infrastructure teams to deploy and maintain the ad-serving platform in a cloud- based environment.

 Collaborate with stakeholders to gather requirements, define technical specifications, and estimate development

efforts for new projects and features.

 Mentor junior developers, sharing knowledge and best practices to foster a culture of continuous learning and

improvement within the development team.

 Participate in on-call rotations and provide support for production issues as needed, ensuring maximum uptime

and reliability of the ad-serving platform.

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