Java developer

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. 

Mode : Hybrid: 2 days a week - Work from office

Need Immediate - 20 days notice only

Responsibilities

Summary - 

Looking for a highly skilled and experienced Senior Software Engineer to join our development team. 

As a Senior Software Engineer, the candidate will be responsible for architecting and developing high-performance, scalable software solutions, mentoring junior engineers, and collaborating across teams to build impactful products.

Responsibilities:

• Create scalable and maintainable architectures to solve business problems efficiently.
• Design, develop, test, and maintain software applications, services, and systems.
• Mentor and guide junior engineers, providing technical support and sharing best practices.
• Lead and participate in writing clean, maintainable, and high-quality code. Ensure code is well-documented and adheres to industry best practices.
• Conduct regular code reviews to ensure code quality and to foster a culture of learning. Ensure that automated tests are in place and that systems are thoroughly tested.
• Work closely with cross-functional teams, including product managers, designers, and QA engineers, to gather requirements and deliver robust solutions.
• Investigate, analyze, and resolve complex technical problems. Implement performance tuning and optimization strategies as needed.
• Contribute to the product vision and continuously improve existing systems, applications, and services.

Education and Experience:

• Bachelor’s or master’s degree.
• 5+ years of professional experience in software engineering, with at least 2-3 years in a senior or lead role.
• Strong proficiency skills required - HTML5/CSS3, JavaScript, TypeScript, React JS, Java/Jee, Spring Boot, Spring Data JPA, Relational Database (Oracle/MySql DB), Microservices architecture (e.g., Java, Python, JavaScript) with a deep understanding of software development fundamentals.

Competencies:

• Strong experience using Git, Maven or other version control systems.
• Strong analytical skills and a demonstrative ability to solve complex technical problems.
• Excellent written and verbal communication skills, with the ability to explain complex technical concepts to non-technical stakeholders.
• Solid experience in designing complex, scalable systems and web applications, including microservices and cloud-native architectures.
• Familiarity with Agile and Scrum development processes.
• Experience with relational (SQL) or NoSQL databases (e.g., MySQL, PostgreSQL, MongoDB).
• Familiarity with CI/CD pipelines, automation, and tools like Jenkins, GitLab, or CircleCI.
• Excellent analytical and troubleshooting skills with a passion for solving complex challenges.
• Expertise in modern web UI frameworks/libraries (e.g., React, Angular, Vue.js) and full-stack development.

Geography to cover and Travel requirements: India, Germany

Behavioral Characteristics

• Excellent communication skills, with the ability to collaborate effectively with both technical and non-technical teams.

Optional: Key Performance Indicators

• Proven experience in mentoring and leading engineering teams, fostering a culture of innovation and learning.
• Hands-on experience with profiling and optimizing application performance at scale.

Mandatory Skills:

• Experience as Senior or Lead role for the position        
• Experience in HTML5/CSS3, JavaScript, TypeScript         
• Experience in React JS , Java/Jee, Spring Boot, Spring Data JPA        
• Experience in Relational Database (Oracle/MySql DB)

Interview process

2 rounds - Virtual interview and 1 round Face to Face

Any other Criteria

• Notice Period: Immediate - 20 Days
• Experience: 5 years
• Qualification: B.Tech/M.Tech
• We don’t consider candidates who have changed multiple companies.
• Without mandatory skills experience, the candidate profiles will not be considered
• We want a candidate from Bangalore/Karnataka; we can look for a candidate from Tamil Nadu, Andhra Pradesh, and Kerala. Other Location candidates will not be accepted.

Job Title: Java Fullstack Developer

📍 Location: Hyderabad (Onsite)

🧑‍💻 Experience: 5–7 Years

Job Summary

We are seeking a highly skilled Java Fullstack Developer with strong expertise in VueJS to design, build, and maintain responsive web applications. The ideal candidate should have proven experience in both frontend and backend technologies, ensuring seamless integration and high performance of applications.

Roles & Responsibilities

• Develop, test, and maintain responsive web applications using VueJS and Java Fullstack technologies.
• Collaborate with product managers, designers, and backend developers to deliver high-quality features.
• Lead the development and implementation of frontend components.
• Mentor junior developers and provide technical guidance.
• Participate in design and architecture discussions for scalable solutions.
• Optimize applications for speed, scalability, and performance.
• Conduct thorough testing, troubleshooting, and debugging.
• Stay updated with the latest trends in frontend and fullstack development.

Mandatory Skills

• Strong hands-on experience in Java Fullstack Development.
• Expertise in VueJS.
• Proficiency in HTML/HTML5, CSS/CSS3, Bootstrap, JavaScript (ES6).
• Strong understanding of UI/UX design feasibility and responsive design principles.
• Excellent communication, problem-solving, and collaboration skills.

Preferred Skills

• Experience with Spring Boot, RESTful APIs, and Microservices.
• Knowledge of Agile methodologies, CI/CD pipelines, and Git.
• Exposure to cloud platforms (AWS, Azure, or GCP) is a plus.

About the Role

We are looking for a highly skilled and experienced Full Stack Software Development Engineer to join our team focused on building and enhancing an Agentic AI Framework. You will be instrumental in developing scalable, reliable, and intelligent AI-based systems, contributing across the stack—from front-end interfaces to back-end infrastructure, and cloud deployment pipelines.

This is a dynamic and forward-thinking role, perfect for developers passionate about AI/ML advancements and keen to continuously grow in the evolving landscape of software engineering.

Key Responsibilities

• Design, develop, and maintain scalable and responsive front-end and back-end components of the Agentic AI Framework.
• Implement RESTful and GraphQL APIs for seamless integration across services.
• Optimize performance and ensure high availability across distributed systems.
• Collaborate with cross-functional teams including AI/ML engineers, data scientists, and DevOps.
• Write clean, maintainable, and testable code.
• Contribute to architecture discussions, code reviews, and project planning.
• Keep up-to-date with advancements in AI/ML algorithms, frameworks, and data science practices.
• Act as a primary point of contact for L3/L4 production support, including:

o  Debugging and resolving live issues

o  Delivering hot patches and quick fixes

o  Managing emergency and planned production releases

·      Own and operate the release lifecycle including version control, deployment, rollback strategies, and documentation

• Support deployment, monitoring, and scaling efforts using DevOps and cloud infrastructure.

Required Skills

• Front-end: React.js, TypeScript, HTML5, CSS3, Redux, Tailwind or Material UI
• Back-end: Java, Kotlin, Spring Boot, Node.js
• Databases: PostgreSQL, Redis, MongoDB, MySQL
• Architecture: Microservices, API Gateways, Event-driven architecture
• DevOps (Preferred): Docker, Kubernetes, CI/CD (e.g., Jenkins, GitHub Actions), AWS/GCP/Azure
• Testing: JUnit, Jest, Selenium, Postman
• Strong understanding of design patterns, data structures, and algorithms
• Familiarity or keen interest in AI/ML, LLMs, data science tools, and workflows

Nice to Have

• Experience with observability tools (Grafana, Prometheus, ELK stack)
• Japanese language proficiency (not mandatory, but a plus)

Who You Are

• A problem-solver with a proactive mindset
• Able to adapt quickly to new technologies and challenges
• Comfortable working in a fast-paced, innovative environment
• Collaborative with excellent communication skills

Perks & Benefits

• Learning support for AI/ML upskilling
• International and diverse team culture

Work on cutting-edge AI-driven products

Job Description:

As a Full Stack Developer, your role is to design, develop, and maintain scalable and high-performance web applications using Java and Angular technologies. You will be responsible for both front-end and back-end development, collaborating with cross-functional teams to deliver robust and user-friendly software solutions.

Responsibilities:

• Full Stack Development: Design, develop, test, and deploy web applications using Java, Angular, and related technologies.
• Front-End Development: Create responsive and intuitive user interfaces using HTML, CSS, and JavaScript frameworks like Angular.
• Angular Application Development: Utilize your expertise in Angular to design and develop responsive, efficient, and visually appealing web applications. Collaborate with UX/UI designers to transform wireframes and mockups into fully functional features.
• UI/UX Improvements: Continuously improve the user experience of our applications by identifying and addressing UI/UX issues and proposing innovative solutions to enhance user satisfaction.
• Back-End Development: Develop server-side logic and APIs using Java frameworks like Spring, Spring Boot, or Java EE.
• Database Integration: Design and implement database structures and queries using relational databases like MySQL, PostgreSQL, or Oracle.
• System Architecture: Participate in architectural discussions and provide technical expertise to ensure scalability, performance, and maintainability of the application.
• Code Reviews and Testing: Conduct code reviews to ensure code quality, performance, and adherence to best practices. Write and execute unit tests and participate in integration and system testing.
• Bug Fixing and Maintenance: Identify and resolve defects and performance issues in the application. Provide ongoing support and maintenance of deployed applications.
• Collaboration and Communication: Work closely with cross-functional teams including designers, product managers, and other developers to understand requirements, provide technical insights, and deliver high-quality software solutions.
• Continuous Learning: Keep up to date with emerging technologies and industry trends. Apply new tools and techniques to improve development processes and enhance application performance.

Requirements:

• Proficient in Java programming language and related frameworks like Spring, Spring Boot, or Java EE.
• Strong experience in front-end development using Angular, HTML, CSS, and JavaScript.
• Solid understanding of web application architecture and design patterns.
• Experience with relational databases and SQL queries.
• Familiarity with version control systems like Git and development tools like IDEs and build tools.
• Knowledge of RESTful APIs and web services.
• Basic understanding of containerization technologies (e.g., Docker, Kubernetes).
• Understanding of Agile development methodologies and practices.
• Excellent problem-solving and analytical skills.
• Strong communication and collaboration abilities.
• Bachelor's degree in computer science, Software Engineering, or a related field (or equivalent experience).

Preferred Skills:

• Experience with cloud technologies (e.g., AWS, Google Cloud Platform).
• Knowledge of containerization technologies (e.g., Docker, Kubernetes).
• Familiarity with DevOps practices and tools (e.g., Jenkins, Git, CI/CD).
• Experience with test automation frameworks (e.g., JUnit).
• Demonstrable experience in building dynamic web applications using Angular, with in-depth knowledge of Angular 2+ features and concepts.

About Kloud9:

Kloud9 exists with the sole purpose of providing cloud expertise to the retail industry. Our team of cloud architects, engineers and developers help retailers launch a successful cloud initiative so you can quickly realise the benefits of cloud technology. Our standardised, proven cloud adoption methodologies reduce the cloud adoption time and effort so you can directly benefit from lower migration costs.

Kloud9 was founded with the vision of bridging the gap between E-commerce and cloud. The E-commerce of any industry is limiting and poses a huge challenge in terms of the finances spent on physical data structures.

At Kloud9, we know migrating to the cloud is the single most significant technology shift your company faces today. We are your trusted advisors in transformation and are determined to build a deep partnership along the way. Our cloud and retail experts will ease your transition to the cloud.

Our sole focus is to provide cloud expertise to retail industry giving our clients the empowerment that will take their business to the next level. Our team of proficient architects, engineers and developers have been designing, building and implementing solutions for retailers for an average of more than 20 years.

We are a cloud vendor that is both platform and technology independent. Our vendor independence not just provides us with a unique perspective into the cloud market but also ensures that we deliver the cloud solutions available that best meet our clients' requirements.

What we are looking for:

●  Overall 8+ Years of Experience in Web Application development.

●  5+ Years of development experience with JAVA8 , Springboot, Microservices and middleware

●  3+ Years of Designing Middleware using Node JS platform.

●  Good to have 2+ Years of Experience in using NodeJS along with AWS Serverless platform.

●  Good Experience with Javascript / TypeScript, Event Loops, ExpressJS, GraphQL, SQL DB (MySQLDB), NoSQL DB(MongoDB) and YAML templates.

●  Good Experience with TDD Driven Development and Automated Unit Testing.

●  Good Experience with exposing and consuming Rest APIs in Java 8, Springboot platform and Swagger API contracts.

●  Good Experience in building NodeJS middleware performing Transformations, Routing, Aggregation, Orchestration and

Authentication(JWT/OAUTH).

●  Experience supporting and working with cross-functional teams in a dynamic environment.

●  Experience working in Agile Scrum Methodology.

●  Very good Problem-Solving Skills.

●  Very good learner and passion for technology.

●  Excellent verbal and written communication skills in English

●  Ability to communicate effectively with team members and business stakeholders

Why Explore a Career at Kloud9:

With job opportunities in prime locations of US, London, Poland and Bengaluru, we help build your career paths in cutting edge technologies of AI, Machine Learning and Data Science. Be part of an inclusive and diverse workforce that's changing the face of retail technology with their creativity and innovative solutions. Our vested interest in our employees translates to delivering the best products and solutions to our customers.

ENGINEER / SR ENGINEER– JAVA/ JEE TECHNOLOGIES

 PUNE

EXPERIENCE –  4+ YEARS (4-12 YEARS) EXPERIENCE IN JAVA/ JEE TECHNOLOGIES.

TECHNOLOGY/SKILLS – JAVA1.9, SPRING BOOT, WEB SERVICES, ORACLE, HTTP PROTOCOL, WEB PROXY, JUNIT, XML, JSON

QUALIFICATION – B.E, BTECH, BSC, BCA, BCS OR EQUIVALENT POST-GRADUATION IN ANY BRANCH PREFERABLY IN E&TC, COMPUTERS

OTHER TOOLS USED – ECLIPSE, JIRA, CONFLUENCE, MAVEN, JENKINS, GIT/ BITBUCKET (SOURCE VERSION CONTROL).

SOFT SKILLS – SELF-MOTIVATED, FOCUSED, GOOD TEAM PLAYER, POSITIVE ATTITUDE, GOOD COMMUNICATION SKILLS – WRITTEN AND VERBAL WITH PRODUCT MANAGEMENT, INTERNAL IT AND STAKEHOLDERS.

NICE TO HAVE – KNOWLEDGE OF CRYPTOLOGY, HSM AND KEY MANAGEMENT / PKI / X509, XML SIG /SML ENC, SMART CARD OPERATING SYSTEM, TELECOMMUNICATION (GSM) AND ELECTRONIC PAYMENT SYSTEM, PROVEN KNOWLEDGE TO WORK IN PROCESSES ACCORDING TO CMMI (LEVEL 3).

DETAILS – GOOD TO HAVE ATTRIBUTES:

• KNOWLEDGE OF SOFTWARE ARCHITECTURE, UNDERSTANDING AND PREPARING SEQUENCE DIAGRAMS, ARCHITECTURE, AND PROCESS DOCUMENTATION.
• EXPERIENCE IN ENTERPRISE APPLICATIONS IN THE PAYMENT / BANKING DOMAIN PREFERRED.
• ANALYSIS, DESIGN AND IMPLEMENTATION OF SMART CARD APPLICATIONS FOR THE PAYMENTS SECTOR (MASTERCARD, VISA.)
• TELECOM/ EMBEDDED SYSTEMS OR SMART CARDS BACKGROUND.
• IDENTIFY AREAS FOR IMPROVEMENT TO ACHIEVE - OPERATIONAL EFFICIENCY, CUSTOMER SATISFACTION, AND VALUE ADDITION.
• PREFERABLY NO TRAVEL CONSTRAINTS.
• HIGH / LOW-LEVEL DESIGNING.

• Collaborate with multiple stakeholders to understand the business context
• Take responsibility for developing product features
• Implement development best practices

• Rich experience in Javascript and front end frameworks like React, Angular or Vue
• Build a backend APIs using Java, Node, Python or GoLang
• Proficiency in leveraging Cloud Native components in AWS, Azure or GCP
• Experience in building scalable applications using Microservices principles is a plus
• Experience in designing for performance is a big plus
• Ability to write high quality code
• Experience in polygot persistence using databases like relational (MySQL, Postgres) and NoSQL (MongoDB, Cassandra, DynamoDB, Redis etc)
• Familiarity with DevOps tools and technologies is a plus
• Passion for continuous learning of new technologies

Job Description:

Java

Spring Boot

Webservices

Microservices
4 to 10 Yrs
Bangalore Location

Total Exp:

Relevant Exp in Spring Boot:

Relevant Exp in Webservices:

Relevant Exp in Microservices: