Wissen Technology

Data Engineer – Databricks & AWS (7+ Years)

Location: Baner, Pune

Work Model:5 days from office

Required Skills

• 7+ years of experience in Data Engineering with strong expertise in Databricks, PySpark, Apache Spark, and SQL.
• Hands-on experience building scalable ETL/ELT pipelines and Data Lake/Lakehouse solutions using Delta Lake.
• Experience with AWS services including S3, Glue, Lambda, IAM, EMR, and Redshift.
• Strong knowledge of Apache Airflow, Git, CI/CD, data quality, performance tuning, and production support.
• Experience with Kafka/Spark Streaming and Banking, Financial Services, or Credit Bureau domains is preferred.

Roles & Responsibilities

• Designed and developed scalable data pipelines using Databricks, PySpark, and AWS to process large-scale credit bureau, customer, loan, and repayment datasets.
• Built ETL/ELT workflows and Delta Lake-based data models to support credit risk analytics, regulatory reporting, and customer profiling.
• Developed and orchestrated batch and near real-time data processing pipelines using Airflow, Kafka, and Spark, ensuring data quality and reliability.
• Optimized Spark workloads through performance tuning techniques, improving processing efficiency and reducing execution time.
• Collaborated with business stakeholders, data architects, and risk teams to deliver data solutions while supporting production environments and operational excellence.

NOTE: One technical round is mandatory to be taken F2F from Pune office.

Website and Company profile:

www.wissen.com

LinkedIn Page:

https://www.linkedin.com/company/wissen-technology/

Company Name – Wissen Technology

Group of companies in India – Wissen Technology & Wissen Infotech

Work Location – Whitefield, Bangalore

While you may already know about Wissen and the company history, here is a quick rundown for you.

About Wissen Technology

• The Wissen Group was founded in the year 2000. Wissen Technology, a part of Wissen Group, was established in the year 2015.
• Wissen Technology is a specialized technology company that delivers high-end consulting for organizations in the Banking & Finance, Telecom, and Healthcare domains. We help clients build world class products.
• Our workforce has 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 has grown its revenues by 400% in these five years without any external funding or investments.
• Globally present with offices US, India, UK, Australia, Mexico, and Canada.
• We offer 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.
• Wissen Technology has been certified as a Great Place to Work®.
• Wissen Technology has been voted as the Top 20 AI/ML vendor by CIO Insider in 2020.
• Over the years, Wissen Group has successfully delivered $650 million worth of projects for more than 20 of the Fortune 500 companies.
• We have served client across sectors like Banking, Telecom, Healthcare, Manufacturing, and Energy. They include likes of Morgan Stanley, Goldman Sachs, MSCI, StateStreet, Flipkart, Swiggy, Trafigura, GE to name a few.

JOB DESCRIPTION

Job Title:

Data Scientist – Graph & Analytics

Location:

Pune, Maharashtra

Work Mode:

Work from Office – 5 Days a Week

Experience:

3–5 Years

Employment Type:

Full-Time

Education:

B.E. / B.Tech in Computer Science, IT, Statistics, or related field

About the Role

We are looking for an analytical and detail-oriented Data Scientist with deep expertise in graph analytics, network analysis, and scalable data engineering. This is not a conventional machine learning role — the focus is on understanding complex relationships, structures, and patterns within large-scale datasets using graph-based methods and statistical modeling. You will work in a collaborative, fast-paced environment and be expected to contribute across the full data lifecycle — from raw data exploration through to production-grade analytical systems.

This is a full-time, in-office role based out of our Pune office (5 days a week).

Key Responsibilities

Graph Analytics & Network Analysis

• Design and implement graph-based models to identify patterns, clusters, communities, and relationships within complex datasets.

• Apply network analysis techniques using metrics such as clustering coefficient, degree assortativity, density, Gini index, and small-world index.

• Perform multi-hop network traversals and community detection using algorithms such as Louvain partitioning and similar graph clustering approaches.

• Build and query graph databases (Neo4j, ArangoDB) using Cypher Query Language to extract structural insights from connected data.

• Leverage GPU-accelerated graph libraries (cuGraph) to scale graph computations across large datasets efficiently.

Data Engineering & Pipeline Development

• Conduct thorough Exploratory Data Analysis (EDA) on large-scale structured and semi-structured datasets to surface quality issues, distributions, and key features.

• Build, optimize, and maintain scalable data pipelines and stored procedures across cloud data platforms such as BigQuery, PostgreSQL, or Hive.

• Automate data workflows using orchestration tools such as Apache Airflow or Kubeflow Pipelines.

• Apply GPU-accelerated computing (CUDA, CuPy, cuDF) to optimize processing performance on high-volume data workloads.

• Ensure data integrity, reproducibility, and documentation across all analytical workflows.

Statistical Modeling & Insight Generation

• Apply statistical modeling techniques to detect behavioral anomalies, trends, and patterns within datasets.

• Use time series analysis to identify temporal patterns and changes in data over time.

• Translate analytical findings into clear, actionable insights for both technical and non-technical stakeholders.

• Build dashboards and reports using visualization tools (e.g., Trino Superset) to communicate results effectively.

Collaboration & Documentation

• Work closely with product, engineering, and business teams to understand requirements and deliver relevant analytical solutions.

• Contribute to internal knowledge sharing through workshops, documentation, and peer reviews.

• Maintain well-documented codebases and analytical frameworks for long-term maintainability.

Required Skills & Qualifications

Must-Have

• 3+ years of experience in a Data Science, Data Analytics, or Graph Analytics role.

• Strong proficiency in Python with hands-on experience using NumPy, Pandas, CuPy, and cuDF.

• Practical experience with graph analytics libraries — NetworkX, cuGraph, Neo4j, or ArangoDB.

• Solid understanding of graph theory concepts: community detection, network metrics, graph traversal, and clustering algorithms.

• Proficiency in SQL; experience with BigQuery, PostgreSQL, MS SQL, Hive, or similar databases.

• Experience with GPU-based computing using CUDA for performance-critical data tasks.

• Strong analytical thinking and ability to work independently on ambiguous, open-ended problems.

Good to Have

• Experience with Cypher Query Language for querying graph databases (Neo4j / ArangoDB).

• Familiarity with graph ML frameworks such as PyTorch Geometric.

• Exposure to workflow orchestration tools — Apache Airflow or Kubeflow Pipelines.

• Knowledge of cloud data tools such as Trino, MinIO, or IBM Datastage.

• Basic scripting skills in Bash or C++ for automation or performance tasks.

• Experience presenting data insights to senior stakeholders or cross-functional teams.

• Research publications, patents, or open-source contributions in graph analytics or data science are a strong plus.

What We Offer

• Opportunity to solve high-impact, large-scale data problems using modern graph and analytics tools.

• Exposure to cutting-edge technologies including GPU-accelerated computing and graph ML.

• Collaborative, intellectually stimulating work environment with a strong engineering culture.

• Competitive compensation with performance-based incentives.

• Learning & development support — certifications, courses, and conference participation.

• Centrally located Pune office with a structured, in-person team culture.

Role: Java Full stack (Java + React) - Java Heavy Backend + latest exp in React experience is must

Experience : 3 to 10

Location : Bangalore (Serving Notice period or immediate joiner)

      Required Skills and Qualifications 

Backend: 

• Strong programming skills in Core Java, Java 8+ 

• Experience with Spring Boot, RESTful APIs, Microservices architecture 

• Good understanding of JPA/Hibernate, and SQL/NoSQL databases 

Frontend: 

• Proficient in React.js, JavaScript (ES6+), HTML5, CSS3 

• Experience with Redux, React Hooks, and component-based architecture 

• Familiarity with front-end build tools (Webpack, Babel, NPM)

Key Responsibilities

• Develop and maintain scalable backend services using Core Java / Spring Boot 

• Design and implement responsive, high-quality front-end interfaces using React.js 

• Integrate backend APIs with frontend components seamlessly 

• Collaborate with product managers, architects, and QA to deliver quality software 

• Ensure code quality through unit testing, code reviews, and performance tuning 

• Troubleshoot and debug production issues as needed 

Company Name – Wissen Technology

Group of companies in India – Wissen Technology & Wissen Infotech

Work Location – Whitefield, Bangalore

While you may already know about Wissen and the company history, here is a quick rundown for you.

About Wissen Technology

• The Wissen Group was founded in the year 2000. Wissen Technology, a part of Wissen Group, was established in the year 2015.
• Wissen Technology is a specialized technology company that delivers high-end consulting for organizations in the Banking & Finance, Telecom, and Healthcare domains. We help clients build world class products.
• Our workforce has 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 has grown its revenues by 400% in these five years without any external funding or investments.
• Globally present with offices US, India, UK, Australia, Mexico, and Canada.
• We offer 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.
• Wissen Technology has been certified as a Great Place to Work®.
• Wissen Technology has been voted as the Top 20 AI/ML vendor by CIO Insider in 2020.
• Over the years, Wissen Group has successfully delivered $650 million worth of projects for more than 20 of the Fortune 500 companies.
• We have served client across sectors like Banking, Telecom, Healthcare, Manufacturing, and Energy. They include likes of Morgan Stanley, Goldman Sachs, MSCI, StateStreet, Flipkart, Swiggy, Trafigura, GE to name a few.

Job Description – Software Engineer (Java Spring Boot + Angular)

Location: Whitefield, Bangalore (Work from Client Office)

Experience: 4–8 years

Role Overview

We are hiring Software Engineers with strong experience in Java Spring Boot and Angular to work on enterprise-level applications at the client office in Whitefield, Bangalore.

Key Responsibilities

• Develop and maintain backend services using Java, Spring Boot, REST APIs.
• Build interactive front-end modules using Angular.
• Collaborate with the lead, QA, and product team for high-quality delivery.
• Understand requirements, participate in design discussions, and contribute to technical solutions.
• Write clean, maintainable, and scalable code.
• Perform unit testing and integration testing.
• Fix bugs, optimize code, and improve application performance.

Technical Skills Required

• Strong coding skills in Java 8+, Spring Boot, RESTful API development.
• Experience working with Angular.
• Good understanding of Microservices concepts.
• Strong knowledge of SQL/NoSQL databases.
• Experience with version control (Git), CI/CD pipelines, and build tools.
• Familiarity with cloud services is a plus.

Soft Skills

• Good communication and teamwork skills.
• Ability to work independently and handle tasks with minimal supervision.
• Strong debugging and problem-solving skills

Job Description – Technical Lead (Java Spring Boot + Angular) – Capital Markets / Financial Services Project

Location: Whitefield, Bangalore (Work from Client Office)

Experience: 8–14 Years

Role Overview

We are seeking an experienced Technical Lead with strong expertise in Java Spring Boot and Angular to lead the development of enterprise-grade applications for a large-scale Banking/Financial Services project. The ideal candidate will combine hands-on technical leadership with strong architecture, design, and stakeholder management capabilities while driving the delivery of high-performance, secure, and scalable solutions.

Key Responsibilities

• Lead and mentor a team of 8–10 developers across front-end and back-end technologies.
• Design, develop, and maintain scalable applications using Java, Spring Boot, Microservices, and Angular.
• Drive technical solutioning, architecture discussions, and application modernization initiatives.
• Collaborate with business stakeholders, product owners, architects, and cross-functional teams to translate business requirements into technical solutions.
• Ensure adherence to coding standards, security guidelines, and development best practices.
• Conduct code reviews, design reviews, sprint planning, and technical grooming sessions.
• Optimize application performance, scalability, reliability, and resiliency.
• Troubleshoot complex production issues and drive root-cause analysis.
• Support CI/CD implementation and DevOps best practices.
• Mentor team members and foster a culture of continuous improvement and technical excellence.

Technical Skills Required

• Strong experience in Java 8/11/17, Spring Boot, Microservices, REST APIs.
• Hands-on expertise in Angular 8+, TypeScript, HTML5, CSS3.
• Experience with Hibernate/JPA and relational databases such as MySQL or PostgreSQL.
• Good understanding of distributed systems, API design, and secure application development.
• Experience with Git, Maven/Gradle, Jenkins, CI/CD pipelines.
• Exposure to cloud technologies, preferably AWS.
• Knowledge of messaging technologies such as Kafka or RabbitMQ is advantageous.
• Experience working in Agile/Scrum environments.

Domain Experience (Preferred)

• Experience in Banking, Financial Services, Credit Cards, Lending, Payments, Risk, Fraud, Customer Servicing, or Digital Banking platforms.
• Understanding of secure, high-volume transaction processing systems and regulatory/compliance-driven environments.

Soft Skills

• Excellent communication and stakeholder management skills.
• Strong client-facing and leadership capabilities.
• Ability to drive technical decisions and influence architecture direction.
• Strong analytical, problem-solving, and decision-making skills.

NOTE: One client round has to be taken F2F from Bangalore Office.

We're looking for an experienced Data Migration Team Lead Consultant to lead enterprise data migration and transformation initiatives.

Key Responsibilities

• Lead end-to-end data migration projects
• Drive data mapping, validation, reconciliation, and migration strategy
• Collaborate with business and technical stakeholders
• Manage data quality, governance, and cutover activities
• Lead and mentor project teams
• Coordinate with cross-functional teams to ensure successful project delivery

Required Skills

• Data Migration
• Data Mapping (Source-to-Target Mapping)
• Data Validation & Reconciliation
• SQL & ETL
• Stakeholder Management
• Requirements Gathering
• Cutover Planning
• Project Management
• Team Leadership
• Agile Methodology

Preferred

• Experience with ERP/CRM migration projects
• Banking or Financial Services domain
• Cloud migration exposure

You will:

. Part of a Global test management team working in the Regulatory reporting domain.

. Collaborate with a wide range of colleagues all over the technology and business domain.

Have a good knowledge about testing concepts- including but not limited to understanding

business requirement, defining test scope, ability to collaborate with business/automation

stakeholders and executing tests, bug/defect tracking and closure.

. Demonstrate a high level of subject matter expertise to bridge functional requirements and technical solution.

. Strong working knowledge of various test types including white-box, black-box,

positive/negative, edge cases, etc.

. Solid test design skills, test case writing, automation, and analysis.

. Strong working knowledge of various test phases including functional, integration and

Regression.

. Strong working experience in running the test suite, investigating the failures and can fix or get it fixed, raise bugs, etc.

. Work closely with Dev and Business Analyst team to understand the functional requirements.

. Actively participate in squad ceremonies Sprint Refinements, Planning, Retrospective and

daily standups.

. Ability to learn new things and exhibit innovative testing approach.

. Strong ability and problem-solving Skills.

You must have:

. Ability to test applications thoroughly before deployment to ensure that they are free of

errors.

. 2-8 years 'experience in test automation or feature development (programming experience)

. Should be able to work with geographically dispersed Dev & QA team in a very dynamic,

rapidly evolving, and high pressure, high visibility project setting.

. Experience of working in a fast-paced Agile framework.

. Ability to challenge status quo and think of out-of-the box solutions to existing problems.

. Excellent problem-solving skills.

. Knowledge of trade lifecycle. product types/asset class types.

. Willingness to guide fellow team members in learning new technologies.

You might also have:

. Understanding of DevOps for complex systems

. Knowledge of Transaction Reporting, OTC Derivatives, Post Trade processing activities.

. Experience with continuous deployment tools and practices

. Experience with automation tools such as Python/PowerBI

Exp- 3-10 years

Notice period- Serving notice period or immediete

Location-Bangalore

Required Skills and Qualifications 

Backend: 

• Strong programming skills in Core Java, Java 8+ 

• Experience with Spring Boot, RESTful APIs, Microservices architecture 

• Good understanding of JPA/Hibernate, and SQL/NoSQL databases 

Frontend: 

• Proficient in React.js, JavaScript (ES6+), HTML5, CSS3 

• Experience with Redux, React Hooks, and component-based architecture 

• Familiarity with front-end build tools (Webpack, Babel, NPM)

Key Responsibilities

• Develop and maintain scalable backend services using Core Java / Spring Boot 

• Design and implement responsive, high-quality front-end interfaces using React.js 

• Integrate backend APIs with frontend components seamlessly 

• Collaborate with product managers, architects, and QA to deliver quality software 

• Ensure code quality through unit testing, code reviews, and performance tuning 

• Troubleshoot and debug production issues as needed 

We are seeking a passionate and skilled Java Technical with 7 to 12 years of experience in product development and team leadership. As a key member of our global software development team, you will be responsible not only for solving complex technical problems but also for leading and mentoring engineers, driving the design of scalable systems, and ensuring high-quality delivery across projects. 

Experience in leading development teams, managing end-to-end project delivery, and working directly with clients to translate business problems into technical solutions is essential. 

Key Responsibilities: 

• Lead the design, development, testing, and deployment of scalable Java applications. 
• Break down client/business problems and define clear technical tasks for the team. 
• Provide technical guidance and mentorship to team members throughout the development lifecycle. 
• Collaborate with cross-functional teams to deliver new features and enhancements. 
• Participate in and lead code reviews, ensuring adherence to best practices and maintaining code quality. 
• Own and drive the architecture and design discussions for new modules and systems. 
• Ensure timely delivery of project milestones and proactively resolve technical blockers. 
• Evaluate and integrate new tools and technologies to improve efficiency and product quality. 
• Serve as the primary technical point of contact for your team and stakeholders. 

Required Skills: 

• 7+ years of hands-on experience in Java development. 
• Proven experience in building products or applications from scratch (not just maintenance/support). 
• Strong object-oriented programming skills and hands-on experience with Spring, Spring Boot, Hibernate, etc. 
• Solid understanding of system architecture, design patterns, and microservices architecture. 
• Experience in leading small to mid-sized teams and managing technical delivery. 
• Proficiency in data structures, algorithms, and performance optimization. 
• Strong communication and stakeholder management skills. 
• Experience working with RESTful APIs and cloud platforms such as AWS, Azure, or GCP is a plus. 
• Good understanding of SQL and NoSQL databases. 
• Strong debugging, troubleshooting, and problem-resolution skills. 

Desired Attributes: 

• Excellent problem-solving and decision-making skills. 
• High levels of ownership, accountability, and self-drive. 
• Strong team leadership and collaboration abilities. 
• Proactive attitude and commitment to engineering excellence. 
• Recognitions or awards in previous roles are a big plus. 
• Passion for continuous learning, coaching others, and improving team capabilities. 

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 1500+ 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. 

Experience

9–18 Years

Education

IIT / NIT graduates only

Interview Process

Candidates must be available for a Face-to-Face interview in Bangalore or Mumbai.

Key Responsibilities

• Design and develop scalable, high-performance Java applications.
• Lead a team of engineers and drive technical excellence.
• Architect enterprise-grade solutions and provide technical guidance.
• Collaborate with cross-functional teams to define, design, and deliver high-quality software.
• Review code, mentor team members, and ensure engineering best practices.
• Drive system design discussions and resolve complex technical challenges.

Required Skills

• Strong expertise in Core Java and Java ecosystem.
• Excellent problem-solving and analytical skills.
• Very strong coding ability with clean coding practices.
• Strong understanding of System Design and distributed systems.
• Hands-on experience in Java Architecture and designing scalable applications.
• Experience leading engineering teams and mentoring developers.
• Good understanding of software design principles, design patterns, and performance optimization.
• Strong communication and stakeholder management skills.

Preferred Skills

• Experience with Spring Boot, Microservices, REST APIs, and cloud technologies.
• Exposure to CI/CD, containerization, and modern DevOps practices is an advantage.