Data Engineer

Wissen Technology is now hiring for Java Developer with hands on experience in Core Java, multithreading, algorithms, and data structure.

We are solving complex technical problems in the financial 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 highly motivated and expert team which has made a mark as a high-end technical consulting.

Required Skills:

Experience - 3+.

Experience in Core Java 5.0 and above, CXF, Spring.

Extensive experience in developing enterprise-scale n-tier applications for financial domain. 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, preferably Sybase database.

Good knowledge of multi-threading and high-volume server-side development.

Experience in sales and trading platforms in investment banking/capital markets.

Basic working knowledge of Unix/Linux.

Excellent problem solving and coding skills in Java.

Strong interpersonal, communication and analytical skills.

Should have the ability to express their design ideas and thoughts.

Responsibilities:

•Design, develop, and implement integration solutions using Oracle Integration Cloud (OIC).

•Collaborate with business analysts and stakeholders to understand integration requirements and translate them into technical specifications.

•Develop and maintain integration interfaces between various on-premises and cloud applications.

•Troubleshoot and resolve integration issues in a timely manner.

•Perform unit testing and support user acceptance testing (UAT) to ensure high-quality deliverables.

•Document integration processes, configurations, and best practices.

Qualifications:

• Proven experience as an Oracle Integration Cloud Developer or similar role.

• Strong knowledge of Oracle Integration Cloud (OIC) components and capabilities.

• Proficiency in designing and developing integrations using OIC, including REST and SOAP APIs, file-based integrations, and orchestration.

• Experience in PLSQL, working with Datahub concept is highly preferable.

• Strong understanding of HCM Extracts and BI Publisher.

• Experience working with various authentication mechanisms, protecting data at rest and data in transit.

• Familiarity with integration patterns, data mapping, and transformation techniques.

• Familiarity with CI/CD pipeline and Git for version control

• Strong communication and collaboration skills.

Preferred Qualifications:

• 4 plus years of Oracle Integration Cloud certification.

• Experience with other integration platforms and tools.

•Knowledge of Oracle ERP Cloud, HCM Cloud, EPM or other Oracle applications.

Job Title: ELK Stack Engineer

Position Overview:

We are seeking a skilled and experienced Senior Elasticsearch Developer to join our team. The ideal candidate will be responsible for designing, developing, and maintaining data pipelines using the ELK Stack (Elasticsearch 7.1 or higher, Logstash, Kibana). The Senior Elasticsearch Developer will play a key role in managing large datasets, optimizing complex queries, and maintaining self-hosted Elastic Search clusters.

Responsibilities:

• Design, develop, and maintain data pipelines using the ELK Stack.
• Handle large datasets (3 billion+ records, 100+ fields per index) with efficiency and accuracy.
• Develop and optimize complex Elasticsearch queries for efficient data retrieval and analysis.
• Manage and maintain self-hosted Elastic Search clusters.
• Implement DevOps practices, including containerization with Docker.
• Perform backups, disaster recovery, and index migrations to ensure data security and integrity.
• Execute data processing and cleaning techniques, including writing custom scripts to extract and transform data into usable formats.
• Collaborate with the engineering team to integrate Elastic Search with other systems.

Requirements:

• Bachelor's degree in Computer Science, Engineering, or related field.
• Minimum 5+ years of experience in designing, developing, and maintaining data pipelines using the ELK Stack.
• Hands-on experience handling large datasets (3 million+ records, 50+ fields per index).
• Strong proficiency in developing and optimizing complex Elasticsearch queries.
• Experience managing and maintaining self-hosted ElasticSearch clusters.
• Proficiency in DevOps practices, including containerization with Docker.
• Knowledge of security best practices, including backups, disaster recovery, and index migrations.
• Experience with database administration and data processing techniques.
• Excellent communication and teamwork skills.

Benefits:

• Competitive salary and benefits package between 20 to 35 LPA.
• Opportunities for professional development and growth.
• Collaborative and inclusive work environment.
• Flexible work hours and remote work options.

Qualifications:

A Bachelor’s degree in Computer Science (or equivalent experience)

Job Role:

• Experience building and maintaining code for:
• iOS platform (Xcode, Swift, Objective C, Swift UI is a plus)
• Hands-on experience with modern technologies.
• Excellent Swift programming skills
• Excellent analytical, debugging and troubleshooting skills (battery usage, network usage optimization, etc)
• Passion for usability, simplicity and consistency in software development.
• Excellent communication and collaborative skills.
• Exposure to Agile methodologies
• Bonus points for knowledge of Android platforms, hybrid platforms(React native, Flutter).

Java, Java8, Springboot, Microservices, core java, j2ee, JAVA, Springboot

backend, core java, java8, micro services

Total experience Required: 7+ Years
Responsibilities:

• Develops ServiceNow software solutions using JavaScript, Web Services, MYSQL, XML, JSON
• Configuration Management (CMDB)
• Analyze system performance issues and determine performance enhancements
• Administration of Knowledge Base and Service Catalog
• Configure out-of-the-box workflows and create/maintain custom workflows
• Configure application related fields, forms, views, email notifications, acceptance roles and access controls
• Integrate ServiceNow application(s) with third party systems/applications via APIs
• Provides input to staff involved in writing and updating technical documentation such as user manuals
• Prepares reports on analyses
• Under general direction, independently develops, maintains and extends a stable production, development and testing middleware infrastructure while extending the functionality and enabling developers to use it via mentoring and formal training
• Independently develops, modifies, and implements moderately to highly complex information systems that are thorough and accurate and conform to MST standards
• Codes, tests, debugs, and documents assignments of moderate to high complexity
• Independently researches and resolves more complex technical problems
• May serve as project manager or team lead on complex projects
• Based on customer requirements, formulates/defines systems scope and objectives
• Researches, develops, codes or modifies architecture components that are well designed, efficient and conform to MST architectural standards
• When assuming the project manager role, manages day-to-day project-related activities for projects of moderate to high complexity
• Work with multiple business owners to move forward development and enhancements around the core ITSM applications including Incident, Change and Request in a Domain separated instance of ServiceNow

Qualifications for ServiceNow developer:

• Ability to set up data security via control rules, domain separation 
• Bachelor of Science in Computer Science, a similar technical discipline, or comparable industry experience
• Minimum 3 years of experience supporting the implementation, configuration, and/or development of the ServiceNow tool

What you need to have:

Desired Profile

 Feasibility assessments – Outline Risks , Design , Effort / Cost Estimate.

 Analyse, design, document, and agree - Solutions to meet requirements / timelines.

 Produce refined estimates of effort, time, resource, and costs for work requests.

 Work effectively with Product Managers and Product Owners to ensure delivery against agreed priorities.

 Develop code, perform peer code reviews, and complete integration tests.

 Ensure delivery of high quality, fit-for-purpose solutions – Follow software development & architectural principals.

 Ensure all solutions maintain the integrity of data throughout capture, processing, and storage.

 Engage with the various testing teams, facilitating systems Test, UAT & other test phases.

 Ensure all software changes are prepared for deployment into PRODUCTION, following CPP’s change control processes.

 Provide regular development progress reports to key stakeholders as necessary.

 Maintain effective documentation and share expertise with colleagues to eliminate single points of expertise within the team.

 Research the external environment, and where appropriate identify and recommend external partners for the delivery of best in class technologies suitable for CPP applications.

 Understanding the use cases (and/or user stories) in order to oversee the design of the architecture for the products to be built.

Skills:

Significant “hands on” software development/support experience gained in a commercial environment with React & Node.

Demonstrable knowledge of Postgres database technology.

Proven experience of using automated test tools/frameworks (e.g. Spock, Selenium, JEB) and Continuous Integration tools (e.g. Hudson, Jenkins).

Experience in a range of software development methodologies (e.g. Agile/SCRUM, Waterfall, DevOps) and secure coding standards (e.g. OWASP).

Knowledge of payment processing regulations (PCI-DSS) and security standards (ISO 27001).

Knowledge of other software development tools (e.g. Stash, Jira, Git).

 Degree in a relevant IT discipline, or equivalent experience gained in a relevant industry