Collection Manager

React Native Developer:

Exp-5 to 8 Years Location -Bangalore

• Proficient in React, JavaScript (ES6+), and TypeScript.
• Expertise in state management libraries (Redux, Zustand, etc.).
• Hands-on experience with react-navigation and deep linking.
• Solid understanding of Expo (both managed and bare workflows).
• Knowledge of native development (Swift/Objective-C for iOS, Java/Kotlin for Android).
• Experience with custom native module bridging and native UI integration.
• Strong debugging skills using tools like Flipper and Chrome DevTools.
• Familiarity with Jest, React Native Testing Library.
• Experience with REST APIs, GraphQL, and real-time data (WebSockets).
• Ability to manage OTA updates with EAS Update and configure EAS Build.
• Experience in app publishing and release lifecycle on both Play Store and App Store
• Knowledge of secure storage, token handling, and app-level security practices.

Java Developer – Job Description Wissen Technology is now hiring for a Java Developer - Bangalore/Mumbai 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. - 3 to 8 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. 

Job Title Big Data Developer

Job Description

Bachelor's degree in Engineering or Computer Science or equivalent OR Master's in Computer Applications or equivalent.

Solid Experience of software development experience and leading teams of engineers and scrum teams.

4+ years of hands-on experience of working with Map-Reduce, Hive, Spark (core, SQL and PySpark).

Solid Datawarehousing concepts.

Knowledge of Financial reporting ecosystem will be a plus.

4+ years of experience within Data Engineering/ Data Warehousing using Big Data technologies will be an addon.

Expert on Distributed ecosystem.

Hands-on experience with programming using Core Java or Python/Scala

Expert on Hadoop and Spark Architecture and its working principle

Hands-on experience on writing and understanding complex SQL(Hive/PySpark-dataframes), optimizing joins while processing huge amount of data.

Experience in UNIX shell scripting.

Roles & Responsibilities

Ability to design and develop optimized Data pipelines for batch and real time data processing

Should have experience in analysis, design, development, testing, and implementation of system applications

Demonstrated ability to develop and document technical and functional specifications and analyze software and system processing flows.

Excellent technical and analytical aptitude

Good communication skills.

Excellent Project management skills.

Results driven Approach.

Mandatory SkillsBig Data, PySpark, Hive

Roles & Responsibilities:

 3+ years of experience developing mobile apps.  Experiencing fine tuning applications to improve performance and memory utilization.  Thorough understanding of iOS development for iPhone, iPod Touch, and iPad devices.  Experience of design and development of iOS applications, preferably in an Enterprise setting  Proficient with Xcode, Objective-C, and Cocoa Touch  Experience with iOS frameworks such as Core Data, SQLite, MapKit, UIKit, Core Location, etc.  String knowledge in Restful, SOAP APIs to connect iOS applications to back-end services  Strong knowledge of Storyboard, Autolayout, ARC.  Experience of design and development of iOS applications, preferably in an Enterprise setting  Proficient with Xcode, Objective-C, and Cocoa Touch.  experience with iOS frameworks such as Core Data, SQLite, MapKit, UIKit, Core Location, etc  Experience with offline storage, threading, multitasking, and performance and memory tuning with  tools  (such as Instruments).  Understanding of Apple’s design principles and interface guidelines  Knowledge of low-level C-based libraries is preferred  Knowledge of Graph APIs is preferred.  Familiarity with cloud message APIs, Local and push notifications  Proficient understanding of code versioning tools (such as Git, TFS or SVN)  Familiarity with continuous integration.

Candidate Required:

 Excellent communication skills  Be an effective Team Leader and should be able to handle and lead a team with effective delegation.  Proficient in mobile app UI development and best practices  Ability to understand that business needs may shift your priorities and adjust accordingly  Exceptional written and oral communication skills.  Exceptional interpersonal skills, with a focus on listening and questioning skills.  Proven analytical and problem-solving abilities.  Ability to effectively prioritize and execute tasks in a high-pressure environment.

We are looking for highly motivated engineers with the following skillset-

• Engineering degree in Computer science or ECE or MCA is a must
• In-depth knowledge of PHP, HTML5, CSS, jQuery, JavaScript, AJAX
• Experience using PHP frameworks such as Laravel, Symfony, Zend, etc. - any 1 is required
• VueJS, AngularJS, ReactJS - knowledge of any 1 is required
• Between 1-5 years of work experience is required
• Very strong data structure and algorithm knowledge
• Ideal candidate would be a very strong developer with great coding skills
• Good English communication skills
• Willingness to work on multiple projects simultaneously
• Ability to work through ambiguous requirements and come up with a clear scope and problem statement
• If you have any live projects portfolio or GitHub handle please share them
• Office is in Fairlie place (Dalhousie), Kolkata 700 001

Responsibilities and Duties

• Creative in designing Creatives, Flyers, brochures, infographics, banner ads, on-screen marketing promotions, advertisements, posters according to requirement.
• Design creatives that are innovative and eye-catching, but at the same time, in line with the brand personality and visual guidelines.
• Come up with innovative ways to elevate the brand.
• Contribute to a culture that supports creativity through exploration, technological innovation, and individual development.

1.Demonstrating the product features to new customer (Online or Onsite)

2.Product show cases to client team during Implementation or after GoLive (after releasing the feature in Live).

3.Preparation of Business Case Document & coordinating with client or vendor team to understand the business objective or business need

4.Preparation of Business Requirement Document (BRD), Functional Specification Document (FSD) and Software Requirement Specification (SRS) along with sign-off from client team.

5.Designing Wire Frames & Prototype Documents along with sign-off from client team.

6.Regular follow-ups on any pending sign-off’s from stakeholders.

7.Regular follow-ups with Dev Team to complete the pending requirements.

8.Responsible for preparation of Use Case Document in collaboration with Testing team

9.Follow-up with client on further clarifications on requirements along with any additional information.

10.Scheduling the meetings with Client & Dev team for any technical clarifications

11.Responsible to maintain Requirements Tracker & ensure updating the same on daily basis or Weekly basis for project status reporting to Management

12.Responsible to maintain Work Tracker on BRD, FSD, Prototype or any other document & ensure updating the same on daily basis or Weekly basis for status reporting to Management

13.Validating the requirements as per BRD, SRS, FSD or Prototype or any other business document & ensure the readiness of the system.

14.Responsible for requirements verification – Functional or Regression Testing (if necessary)

15.Preparation of Release Notes & sharing the same with Client.

16.Handing over the user manuals

17.Regular follow-ups with Dev Team on pending tickets or issues raised by Client team.

18.Answering Request for Proposal (RFP) & Request for Information (RFI).

19.Preparation of Solution Approaches (applicable for New & Maintenance projects), Proposal Document (Applicable for Maintenance projects).

20.Preparation of Business Presentations (Power-Point Presentations) or Project Status Meeting presentations.

21.Preparation of Brochures

22.Responsible to answer Magazine or Interview Questions shared by Media