HR EXECUTIVE

JOB DESCRIPTION

Experience: 3-8 years

Wissen Technology is now hiring for a Java Developer - 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. - 3-8 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

Experience - 7+Yrs

Must-Have:

o Python (Pandas, PySpark)

o Data engineering & workflow optimization

o Delta Tables, Parquet

· Good-to-Have:

o Databricks

o Apache Spark, DBT, Airflow

o Advanced Pandas optimizations

o PyTest/DBT testing frameworks

Interested candidates can revert back with detail below.

Total Experience -

Relevant Experience in Python,Pandas.DE,Workflow optimization,delta table.-

Current CTC -

Expected CTC -

Notice Period -LWD -

Current location -

Desired location -

Responsibilities

1. Cross-Platform Mobile Development

• Build, maintain, and scale production-grade React Native applications for both Android and iOS platforms from a single codebase.
• Translate product requirements and UX designs into clean, modular, and reusable React Native components.
• Develop rich, intuitive user interfaces for AI/ML dashboards, real-time analytics, and consumer-facing applications.
• Own features end-to-end — from technical design through to deployment on Play Store and App Store.

2. Native Integration & Bridging

• Write custom native modules and bridges in Kotlin/Java (Android) or Swift/Objective-C (iOS) to extend React Native's capabilities where required.
• Integrate third-party SDKs, device hardware APIs, and platform-specific features seamlessly into the React Native layer.
• Ensure consistent functionality and behaviour across a wide range of Android and iOS devices and OS versions.

3. Real-Time & Data-Driven UI

• Build real-time UI components that handle live data streams, WebSocket connections, and high-frequency data updates with minimal latency.
• Develop data-intensive views including charts, dashboards, and monitoring interfaces optimised for mobile performance.
• Ensure smooth, responsive user experiences under high-traffic and data-heavy conditions.

4. Performance & Optimization

• Profile, debug, and optimize application performance using tools such as Flipper, Hermes, React DevTools, and platform-native profilers.
• Minimize app bundle size, reduce render cycles, and improve startup time through best-in-class optimization techniques.
• Ensure accessibility compliance and cross-device UI consistency across varying screen sizes and resolutions.

5. Architecture & Code Quality

• Design and implement scalable mobile architectures supporting modularity, testability, and long-term maintainability.
• Implement robust state management using Redux, Zustand, MobX, or React Context depending on application complexity.
• Establish and uphold mobile coding standards, component libraries, and reusable design systems across the team.

6. Collaboration & Delivery

• Partner closely with backend, AI/ML, data engineering, and design teams to integrate APIs, data pipelines, and workflows.
• Actively participate in code reviews, sprint ceremonies, and technical design discussions.
• Support CI/CD pipelines using Fastlane, Bitrise, or equivalent tools for automated builds and releases.
• Contribute to OTA update strategies using CodePush or equivalent.

Required Skills & Qualifications

• Strong hands-on experience building and shipping production React Native applications on both Android and iOS.
• Proficiency in JavaScript and TypeScript — TypeScript strongly preferred.
• Experience with state management libraries — Redux, Zustand, MobX, or Context API.
• Solid understanding of React Native architecture — Bridge, JSI, Hermes engine, and the New Architecture (Fabric/TurboModules) is a plus.
• Experience writing native modules or bridges in either Kotlin/Java or Swift/Objective-C.
• Hands-on experience with REST APIs, GraphQL, and WebSockets in a mobile context.
• Strong understanding of mobile UI/UX principles, responsive design, and platform-specific design guidelines (Material Design & HIG).
• Experience with CI/CD pipelines and app store deployment processes.

Preferred Skills

• Experience building data-intensive or dashboard-heavy mobile applications.
• Familiarity with data visualization libraries such as Victory Native, Recharts, or D3.js for mobile.
• Exposure to AR/VR or graphics-intensive mobile experiences (ARKit, ARCore, React Native Vision Camera).
• Experience with OTA updates via CodePush or similar tools.
• Familiarity with monorepo setups (Nx, Turborepo) for managing shared mobile codebases.
• Understanding of accessibility standards (WCAG) and inclusive design on mobile.
• Exposure to AI/ML integration on mobile — on-device inference, TensorFlow Lite, or CoreML.

"We're seeking an experienced Business Analyst with Pre-Sales experience to help us drive growth and maximize revenue. If you have a passion for business development, we want to work with you!"

Desired Skill Sets: 

-Possess a proven track record of accomplishments in the areas of Requirement Scoping, Functional Analysis, Technology Solution Design (nice to have), Effort and Cost Estimation, Proposal Preparation, Client Presentations, and Cross-Functional Collaboration. 

-Understanding and Creating Requirements Specifications 

-Solution-based research 

-Negotiation and solution drafting Skills 

-Should have worked on presales role in terms of guiding on Innovations in Solution, Proposal Flow, Value proposition, etc. for opportunities that include Fixed Price, T&M, and Service-based engagements.  

-Significant exposure to various technology stacks across the Digital landscape, Next Gen. Technologies (AI/ML, Blockchain, IoT) UX, Mobility, Platform Development, e-commerce, Cloud Ops, etc. 

Responsibilities: 

-Conduct initial requirements gathering with clients to elicit key business requirements and project/ system objectives. 

-Manage the entire proposal lifecycle, which includes understanding & finalizing the scope of work, technical & functional solution review with the Engineering teams, commercials with the Finance team, and proposal submission. 

-Lead and create customized proposals in response for different leads and RFP’s.  

-Liaising between internal departments to ensure all requirements are met, which may include effort estimates, system architecture and wireframes. 

-Identify key features to be included in a Proof-of-Concept (POC)/ Solution Demo if requested by the Client, and lead POC team in the development of this POC. 

-Ensuring that the team meets customer requirements and adds value to the customer ecosystem. 

-Maintaining a Knowledge Base of ongoing technical projects and case studies to build an institutional memory of reference-ability. 

-Coordinate with the Sales, Engineering/delivery, and other internal teams and ensure the highest quality proposals are delivered on time. 

-Market research of the latest tech and business trends, exploring business opportunities in conjunction with the organization capabilities. 

• Strong Systems Experience- Linux, networking, cloud, APIs
• Scripting language Programming - Shell, Python
• Strong Debugging Capability
• AWS Platform -IAM, Network,EC2, Lambda, S3, CloudWatch
• Knowledge on Terraform, Packer, Ansible, Jenkins
• Observability - Prometheus, InfluxDB, Dynatrace,
• Grafana, Splunk • DevSecOps-CI/CD - Jenkins
• Microservices
• Security & Access Management
• Container Orchestration a plus - Kubernetes, Docker etc.
• Big Data Platforms knowledge EMR, Databricks. Cloudera a plus

Currently, we are looking for engineers who are skilled, passionate, driven, and a wee bit crazy (yes, crazy works! ) to join our tribe. The small tweaks you make, the processes you alter, the experiments you run, and the business decisions you drive will have reverberating effects on our ability to add value to our customers and keep them coming back for more.

Responsibilities:

• Work on cutting edge technical systems and seek to do things no one else has done before.
• Work with a group of people who believe in the utmost transparency and ethical practices.
• Work with full autonomy and high ownership of outcomes
• Add value to our user's life • Evolve as a professional through a learning and challenging journey.

Requirements:

• 4+ years of overall work experience, and a minimum of 2 years of experience in Android development
• Excellent knowledge of Java, Kotlin and Android eco-system
• Experience in software engineering best practices and design principles
• Prior experience in working on scalable Android App • Capable of handling web service integration - RESTful, JSON, SOAP, XML
• A focus and passion for Mobile UI & UX to make apps exciting for the user
• Excellent debugging and optimisation skills
• Rapid prototyping skills for getting product feedback
• Understanding of product development lifecycle
• Experience in React Native is a bonus

• Design and development of three-tier - high performance and scalable enterprise product.
• Own feature development from definition, design through delivery.
• Hands-on full stack developer who is passionate about Go Language, Java/J2EE development, UI, SQL, building highly scalable and resilient applications, and focused on solving complex business problems
• Orientation to contribute both as a technical lead as well as an individual contributor.
• Lead the team to deliver high-quality software, by reviewing their work and mentoring them.
• Ability to research, follow up and resolve complex challenges.
• He/She will have responsibility for unit-level design, coding, unit testing, integration testing, and participating in the full SDLC
• He/She will be expected to produce high-quality code that can pass critical peer review, and work under a high-pressure and timeline-driven environment.

Qualifications

• Bachelor’s degree or higher in Computer Science or Engineering equivalent
• Minimum of 5 years experience in product development
• Responsible, organized, and possess critical thinking with good interpersonal and communication skills
• Able to demonstrate good analytical problem-solving abilities and strong leadership aptitude
• Able to work at both abstract and detailed level
• Must be fluent in English, and strong communication skills.
• Motivated self-starter that likes to work as part of a team

Technical Requirements

• Strong experience in Core Java 8 and above, Collections and Data structures.
• Develop solutions using core java, Spring / Spring Boot, JSON, Rest API, and other web technologies.
• Hands-on with UI development with strong experience in HTML5, JavaScript, CSS3, Responsive UI. An added advantage for exposure to Angular. Knowledge of Liferay will be added advantage. Ability to design and develop UIs and end-to-end integration.
• Object-oriented analysis and design using common design patterns.
• Enforcing and Writing code following good standards (well documented with good code coverage and properly tested code).
• Excellent knowledge of Relational Databases, SQL, and ORM technologies (Hibernate and Mybatis). Ability to model & design databases for high availability and high volume.
• Ability to design and build a scalable platform with APIs.
• Strong programming skills, as well as the ability to review complex code bases written by others.
• Strong knowledge of test-driven development and continuous integration
• Exposure to security, application clustering, and load balancing techniques.
• Passion for collaboration and working on agile teams. Prior experience with working on fast-paced milestones using flexible and adaptive methodologies.
• Excellent problem-solving skills.

Responsibilities

• Participate in requirements analysis
• Collaborate with internal teams to produce software design and architecture
• Write clean, scalable code using .NET programming languages
• Test and deploy applications and systems
• Revise, update, refactor and debug code
• Improve existing software
• Develop documentation throughout the software development life cycle (SDLC)
• Serve as an expert on applications and provide technical support

Requirements

• Proven experience as a .NET Developer or https://resources.workable.com/application-developer-job-description">Application Developer
• Familiarity with the ASP.NET framework, SQL Server and design/architectural patterns (e.g. Model-View-Controller (MVC))
• Knowledge of at least one of the .NET languages (e.g. C#, Visual Basic .NET) and HTML5/CSS3
• Familiarity with architecture styles/APIs (REST, RPC)
• Understanding of Agile methodologies