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Java Developer – Job Description 

Wissen Technology is now hiring a Java Developer 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 consultancy. 

Required Skills: 

• Exp. - 4 to 9 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.

• Strong working knowledge of technologies such as HTML5, CSS3 and Responsive development
• Basic knowledge of SFMC will be required; Adobe knowledge will be an advantage
• Knowledge of Angular JS, Node.JS, React.JS, amp scripting would be a good to have
• Ensure developed pages are responsive and are cross browser compatible, provide full proof suggestions to on optimization and best practices
• Develop and test pages across multiple browsers, platforms, and devices
• Sound knowledge of developing Industry standard responsive Emailers / Landing Pages and test across email clients
• Strong knowledge of understanding of good practices on emailer development. Able to analyse requests correctly
• Experience in doing code review/ peer audit/ code documentation will be added advantage
• Ability to work independently and in team environment
• Strong analytical, trouble shooting and problem solving skills
• Excellent written and verbal communication skills. Able to communicate seamlessly with the Client
• Comfortable working in fast paced environment on multiple tools and technologies
• Client communications on day to day basis
• Outsourcing / offshoring experience is a plus

Job Summary:

As an AWS Data Engineer, you will be responsible for designing, developing, and maintaining scalable, high-performance data pipelines using AWS services. With 6+ years of experience, you’ll collaborate closely with data architects, analysts, and business stakeholders to build reliable, secure, and cost-efficient data infrastructure across the organization.

Key Responsibilities:

• Design, develop, and manage scalable data pipelines using AWS Glue, Lambda, and other serverless technologies
• Implement ETL workflows and transformation logic using PySpark and Python on AWS Glue
• Leverage AWS Redshift for warehousing, performance tuning, and large-scale data queries
• Work with AWS DMS and RDS for database integration and migration
• Optimize data flows and system performance for speed and cost-effectiveness
• Deploy and manage infrastructure using AWS CloudFormation templates
• Collaborate with cross-functional teams to gather requirements and build robust data solutions
• Ensure data integrity, quality, and security across all systems and processes

Required Skills & Experience:

• 6+ years of experience in Data Engineering with strong AWS expertise
• Proficient in Python and PySpark for data processing and ETL development
• Hands-on experience with AWS Glue, Lambda, DMS, RDS, and Redshift
• Strong SQL skills for building complex queries and performing data analysis
• Familiarity with AWS CloudFormation and infrastructure as code principles
• Good understanding of serverless architecture and cost-optimized design
• Ability to write clean, modular, and maintainable code
• Strong analytical thinking and problem-solving skills

Responsibilities:

1. Develop and maintain mobile applications using React Native.

2. Collaborate with cross-functional teams to define, design, and ship new features.

3. Write clean, maintainable, and efficient code.

4. Ensure the performance, quality, and responsiveness of applications.

5. Troubleshoot and debug issues, and optimize performance for a seamless user experience.

6. Stay updated on emerging trends and technologies in mobile development.

Requirements:

1. Proven experience as a React Native Developer.

2. Strong proficiency in JavaScript and React.

3. Familiarity with native build tools, like Xcode, Android Studio.

4. Experience with third-party libraries and APIs.

5. Understanding of state management (e.g., Redux) in mobile applications.

6. Solid understanding of the full mobile development life cycle.

7. Excellent problem-solving and communication skills.

8. Ability to work independently and collaboratively in a team.

Role

We are looking for a Growth hacker to join the core team. The role will start off as a strong individual contributor and later involve building the team as well as we scale. It will mean taking on full responsibility for driving revenue through ideas and actions that help meet brand, product and business objectives.

Key Work Areas

• Evaluate and enhance end-to-end customer experience across multiple channels and customer touch points
• Test and optimize marketing tactics for customer acquisition, retention and conversion rate optimization
• Manage, optimise and execute multi-channel marketing and retargeting campaigns
• Analyse own content stream to optimise content strategy
• Write crisp copy with quick turn-around time
• Optimise listing for e-commerce marketplaces  
• Draw insights from product sales data for product portfolio optimisation