
Must have very good experience in Java development.
Must have a very good understanding of data structure & algorithms.
Must be very good at coding & problem solving skills.
Must be very good in multithreading, Collections, OOPS concepts.
Good to have experience in Java 8.

About Wissen Technology
About
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.
With offices in 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.
Leveraging our multi-site operations in the USA and India and availability of world-class infrastructure, we offer a combination of on-site, off-site and offshore service models. Our technical competencies, proactive management approach, proven methodologies, committed support and the ability to quickly react to urgent needs make us a valued partner for any kind of Digital Enablement Services, Managed Services, or Business Services.
We believe that the technology and thought leadership that we command in the industry is the direct result of the kind of people we have been able to attract, to form this organization (you are one of them!).
Our workforce consists of 1000+ highly skilled professionals, with leadership and senior management executives who have graduated from Ivy League Universities like MIT, Wharton, IITs, IIMs, and BITS and with rich work experience in some of the biggest companies in the world.
Wissen Technology has been certified as a Great Place to Work®. The technology and thought leadership that the company commands in the industry is the direct result of the kind of people Wissen has been able to attract. Wissen is committed to providing them the best possible opportunities and careers, which extends to providing the best possible experience and value to our clients.
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Job Title: Java Lead – Software Engineering
Location: Mohali | Panchkula | Gurugram (Onsite)
Experience: 7+ Years
About the Role:
We are seeking a highly skilled and passionate Java Lead who will be responsible for designing, developing, and leading the implementation of scalable and maintainable product features. As a Lead, you will play a key role in guiding a team, ensuring coding best practices, and resolving complex technical challenges. This is a great opportunity for someone who thrives in a fast-paced environment, is passionate about solving technical problems, and is excited about leading product development end-to-end.
Key Responsibilities:
· Lead a team of developers in designing and building micro-services using Java.
· Decompose feature requests into sizable and estimable pieces of work.
· Deliver scalable, maintainable, and high-quality code within defined timelines.
· Conduct code reviews to ensure adherence to coding standards and best practices.
· Collaborate with cross-functional teams to solve complex technical challenges.
· Act as a subject matter expert for specific product components.
· Debug and resolve critical production issues with detailed root cause analysis.
· Drive adoption of Agile practices, ensuring proper planning, estimation, and delivery.
Required Qualifications:
· Bachelor’s degree in Computer Science or a related field.
· 7+ years of strong experience in Java development.
· 3+ years of hands-on experience in developing and delivering productized software applications.
· Experience in leading teams and mentoring developers.
· Proven ability to design and deliver scalable and maintainable applications.
· Strong problem-solving and analytical skills with a self-driven mindset.
· Excellent written and verbal communication skills.
Preferred Skills:
· Hands-on experience with Java micro-services.
· Familiarity with CI/CD pipelines.
· Strong understanding of Agile methodologies.
· Cloud and containerization exposure with AWS and Docker.
Technology Stack:
· Java
· Micro-services
· SQL
· AWS
· Docker
Job Details
- Job Title: Senior Backend Engineer
- Industry: SAAS
- Function – Information Technology
- Experience Required: 5-8 years
- Working Days: 6 days a week, (5 days-in-office, Saturdays WFH)
- Employment Type: Full Time
- Job Location: Bangalore
- CTC Range: Best in Industry
Preferred Skills: AWS, NodeJS, RESTful APIs, NoSQL
Criteria
· Minimum 5+ years in backend engineering with strong system design expertise
· Experience building scalable systems from scratch
· Expert-level proficiency in Node.js
· Deep understanding of distributed systems
· Strong NoSQL design skills
· Hands-on AWS cloud experience
· Proven leadership and mentoring capability
· Preferred candidates from SAAS/Software/IT Services based startups or scaleup companies
Job Description
The Role:
What You’ll Build:
1. System Architecture & Design
● Architect highly scalable backend systems from the ground up
● Define technology choices: frameworks, databases, queues, caching layers
● Evaluate microservices vs monoliths based on product stage
● Design REST, GraphQL, and real-time WebSocket APIs
● Build event-driven systems for asynchronous processing
● Architect multi-tenant systems with strict data isolation
● Maintain architectural documentation and technical specs
2. Core Backend Services
● Build high-performance APIs for 3D content, XR experiences, analytics, and user interactions
● Create 3D asset processing pipelines for uploads, conversions, and optimization
● Develop distributed job workers for CPU/GPU-intensive tasks
● Build authentication/authorization systems (RBAC)
● Implement billing, subscription, and usage metering
● Build secure webhook systems and third-party integration APIs
● Create real-time collaboration features via WebSockets/SSE
3. Data Architecture & Databases
● Design scalable schemas for 3D metadata, XR sessions, and analytics
● Model complex product catalogs with variants and hierarchies
● Implement Redis-based caching strategies
● Build search and indexing systems (Elasticsearch/Algolia)
● Architect ETL pipelines and data warehouses
● Implement sharding, partitioning, and replication strategies
● Design backup, restore, and disaster recovery workflows
4. Scalability & Performance
● Build systems designed for 10x–100x traffic growth
● Implement load balancing, autoscaling, and distributed processing
● Optimize API response times and database performance
● Implement global CDN delivery for heavy 3D assets
● Build rate limiting, throttling, and backpressure mechanisms
● Optimize storage and retrieval of large 3D files
● Profile and improve CPU, memory, and network performance
5. Infrastructure & DevOps
● Architect AWS infrastructure (EC2, S3, Lambda, RDS, ElastiCache)
● Build CI/CD pipelines for automated deployments and rollbacks
● Use IaC tools (Terraform/CloudFormation) for infra provisioning
● Set up monitoring, logging, and alerting systems
● Use Docker + Kubernetes for container orchestration
● Implement security best practices for data, networks, and secrets
● Define disaster recovery and business continuity plans
6. Integration & APIs
● Build integrations with Shopify, WooCommerce, Magento
● Design webhook systems for real-time events
● Build SDKs, client libraries, and developer tools
● Integrate payment gateways (Stripe, Razorpay)
● Implement SSO and OAuth for enterprise customers
● Define API versioning and lifecycle/deprecation strategies
7. Data Processing & Analytics
● Build analytics pipelines for engagement, conversions, and XR performance
● Process high-volume event streams at scale
● Build data warehouses for BI and reporting
● Develop real-time dashboards and insights systems
● Implement analytics export pipelines and platform integrations
● Enable A/B testing and experimentation frameworks
● Build personalization and recommendation systems
Technical Stack:
1. Backend Languages & Frameworks
● Primary: Node.js (Express, NestJS), Python (FastAPI, Django)
● Secondary: Go, Java/Kotlin (Spring)
● APIs: REST, GraphQL, gRPC
2. Databases & Storage
● SQL: PostgreSQL, MySQL
● NoSQL: MongoDB, DynamoDB
● Caching: Redis, Memcached
● Search: Elasticsearch, Algolia
● Storage/CDN: AWS S3, CloudFront
● Queues: Kafka, RabbitMQ, AWS SQS
3. Cloud & Infrastructure:
● Cloud: AWS (primary), GCP/Azure (nice to have)
● Compute: EC2, Lambda, ECS, EKS
● Infrastructure: Terraform, CloudFormation
● CI/CD: GitHub Actions, Jenkins, CircleCI
● Containers: Docker, Kubernetes
4. Monitoring & Operations
● Monitoring: Datadog, New Relic, CloudWatch
● Logging: ELK Stack, CloudWatch Logs
● Error Tracking: Sentry, Rollbar
● APM tools
5. Security & Auth
● Auth: JWT, OAuth 2.0, SAML
● Secrets: AWS Secrets Manager, Vault
● Security: Encryption (at rest/in transit), TLS/SSL, IAM
What We’re Looking For:
1. Must-Haves
● 5+ years in backend engineering with strong system design expertise
● Experience building scalable systems from scratch
● Expert-level proficiency in at least one backend stack (Node, Python, Go, Java)
● Deep understanding of distributed systems and microservices
● Strong SQL/NoSQL design skills with performance optimization
● Hands-on AWS cloud experience
● Ability to write high-quality production code daily
● Experience building and scaling RESTful APIs
● Strong understanding of caching, sharding, horizontal scaling
● Solid security and best-practice implementation experience
● Proven leadership and mentoring capability
2. Highly Desirable
● Experience with large file processing (3D, video, images)
● Background in SaaS, multi-tenancy, or e-commerce
● Experience with real-time systems (WebSockets, streams)
● Knowledge of ML/AI infrastructure
● Experience with HA systems, DR planning
● Familiarity with GraphQL, gRPC, event-driven systems
● DevOps/infrastructure engineering background
● Experience with XR/AR/VR backend systems
● Open-source contributions or technical writing
● Prior senior technical leadership experience
Technical Challenges You’ll Solve:
● Designing large-scale 3D asset processing pipelines
● Serving XR content globally with ultra-low latency
● Scaling from thousands to millions of daily requests
● Efficiently handling CPU/GPU-heavy workloads
● Architecting multi-tenancy with complete data isolation
● Managing billions of analytics events at scale
● Building future-proof APIs with backward compatibility
Why company:
● Architectural Ownership: Build foundational systems from scratch
● Deep Technical Work: Solve distributed systems and scaling challenges
● Hands-On Impact: Design and code mission-critical infrastructure
● Diverse Problems: APIs, infra, data, ML, XR, asset processing
● Massive Scale Opportunity: Build systems for exponential growth
● Modern Stack and best practices
● Product Impact: Your architecture directly powers millions of users
● Leadership Opportunity: Shape engineering culture and direction
● Learning Environment: Stay at the forefront of backend engineering
● Backed by AWS, Microsoft, Google
Location & Work Culture:
● Location: Bengaluru
● Schedule: 6 days a week, (5 days-in-office, Saturdays WFH)
● Culture: Builder mindset, strong ownership, technical excellence
● Team: Small, highly skilled backend and infra team
● Resources: AWS credits, latest tooling, learning budget
Job Title: Python Developer (Full Time)
Location: Hyderabad (Onsite)
Interview: Virtual and Face to Face Interview (Last round)
Experience Required: 4 + Years
Working Days: 5 Days
About the Role
We are seeking a highly skilled Lead Python Developer with a strong background in building scalable and secure applications. The ideal candidate will have hands-on expertise in Python frameworks, API integrations, and modern application architectures. This role requires a tech leader who can balance innovation, performance, and compliance while driving successful project delivery.
Key Responsibilities
- Application Development
- Architect and develop robust, high-performance applications using Django, Flask, and FastAPI.
- API Integration
- Design and implement seamless integration with third-party APIs (including travel-related APIs, payment gateways, and external service providers).
- Data Management
- Develop and optimize ETL pipelines for structured and unstructured data using data lakes and distributed storage solutions.
- Microservices Architecture
- Build modular, scalable applications using microservices principles for independent deployment and high availability.
- Performance Optimization
- Enhance application performance through load balancing, caching, and query optimization to deliver superior user experiences.
- Security & Compliance
- Apply secure coding practices, implement data encryption, and ensure compliance with industry security and privacy standards (e.g., PCI DSS, GDPR).
- Automation & Deployment
- Utilize CI/CD pipelines, Docker/Kubernetes, and monitoring tools for automated testing, deployment, and production monitoring.
- Collaboration
- Partner with front-end developers, product managers, and stakeholders to deliver user-centric, business-aligned solutions.
Requirements
Education
- Bachelor’s or Master’s degree in Computer Science, Engineering, or a related field.
Technical Expertise
- 4+ years of hands-on experience with Python frameworks (Django, Flask, FastAPI).
- Proficiency in RESTful APIs, GraphQL, and asynchronous programming.
- Strong knowledge of SQL/NoSQL databases (PostgreSQL, MongoDB) and big data tools (Spark, Kafka).
- Familiarity with Kibana, Grafana, Prometheus for monitoring and visualization.
- Experience with AWS, Azure, or Google Cloud, containerization (Docker, Kubernetes), and CI/CD tools (Jenkins, GitLab CI).
- Working knowledge of testing tools: PyTest, Selenium, SonarQube.
- Experience with API integrations, booking flows, and payment gateway integrations (travel domain knowledge is a plus, but not mandatory).
Soft Skills
- Strong problem-solving and analytical skills.
- Excellent communication, presentation, and teamwork abilities.
- Proactive, ownership-driven mindset with the ability to perform under pressure.
• Ruby
• Rails framework
• MySQL
• API development
• Design Patterns
Develop, test, and maintain all APIs
• Manage and maintain SQL and No-SQL tables, data, and stored procedures within all databases
• Compile and analyze data, processes, and codes to troubleshoot problems and identify areas for improvement
• Collaborating with the front-end developers and other team members to establish objectives and design more functional, cohesive code to enhance the user experience and support analytical products
• Troubleshoot and diagnose production issues
As a Node.js Developer at Primathon Technology, you will be responsible for designing, developing, and maintaining server-side applications using Node.js. You will collaborate with cross-functional teams to implement new features, optimize existing functionality, and ensure the best possible performance, security, and user experience. Key Responsibilities:
1. Develop and maintain server-side applications using Node.js, ensuring optimal performance and scalability.
2. Collaborate with front-end developers, designers, and other stakeholders to implement new features and enhance existing functionality.
3. Write clean, maintainable, and efficient code while adhering to coding standards and best practices.
4. Participate in code reviews to ensure code quality and consistency within the development team.
5. Troubleshoot and debug issues across the application stack, identifying and resolving performance bottlenecks and other challenges. 6. Implement security and data protection measures, ensuring the application's compliance with industry standards.
7. Optimize applications for maximum speed and scalability. Qualifications and Skills:
1. Bachelor's degree in Computer Science, Engineering, or a related field.
2. Minimum of 2 years of professional experience as a Node.js Developer
. 3. Proficient in server-side JavaScript programming using Node.js.
4. Strong understanding of asynchronous programming, including Promises and async/await.
5. Experience with RESTful API development and integration.
6. Familiarity with front-end technologies such as HTML, CSS, and JavaScript frameworks (e.g., React, Angular, Vue) is a plus.
7. Knowledge of database systems (e.g., MongoDB, MySQL, PostgreSQL) and data modeling.
8. Experience with version control systems (e.g., Git) and collaborative development workflows.
9. Good understanding of software development lifecycle (SDLC) and agile methodologies.
10. Strong problem-solving skills and attention to detail
1. 7 to 12-14 years of experience as a Software Developer.
2. Experience in .Net technologies - C#, ASP.net is must.
3. Experience in developing REST based APIs.
4. Experience in building web user interface.
5. Good to have experience in developing single page apps using modern JS framework.
6. Skills in cross browser development.
7. Understanding of Agile methodology.
8. Excellent trouble shooting and communication skills.
9. Knowledge of Azure will be an added advantage.
JOB DESCRIPTION -
- Developing and implementing web-based applications using .Net technology and MS-SQL.
- Developing front end with highly responsive user interface concept using React concept.
- Identifying web-based user interaction.
- Participate in requirement analysis.
- Collaborate with internal teams and positive mindset to help and seek help.
- Documentation of application development changes and updates.
TECHNICAL SKILLS
- Expert in C#, ASP.Net, Web API, MS SQL Server.
- Good to have experience in React and workflows such as Redux or Flux, MongoDB.
- Knowledge of HTML, CSS and JavaScript.
- Familiar with source control system (GIT, SVN).
Kunato.AI is a NY-based IT firm helping to create the first marketplace that monetizes digital content on the internet (i-commerce). We have a patented technology - a quantitative deep tech system that predicts, assigns and updates the value of any digital content in real-time without the need for human intervention.
Our system has the potential to create a new digital goods marketplace that will revolutionize the way we consume, create and search for content on the Internet.
We are at an exciting juncture of our growth journey and are looking for Software Developers to join us in making this vision a reality. We are looking for Nodejs Developers (with 2-6years of experience) to join our cutting-edge development team as it grows. The candidate must be comfortable working in an agile environment and can take the lead when necessary. If you are keen on being part of an early-stage start-up with an emphasis on innovation and best development practices, we are the right place for you!
What will you be working on?
- We are looking for a Node.js Developer responsible for managing the interchange of data between the server and the users.
- Your primary focus will be the development of all server-side logic, definition, and maintenance of the central database, and ensuring high performance and responsiveness to requests from the front end.
- You will be responsible for developing the product as per the product specification defined by the product managers
- Perform research on the best methods of implementing the requirements. Author and curate technical documentation to support delivery, maintenance, and adoption
- Work with programmers, engineers, and management heads to identify process improvement opportunities, propose system modifications, and devise governance strategies to optimize the overall performance
- Design and develop automated deployment and maintenance mechanisms
- Solving development challenges and making architectural decisions by understanding the larger picture of the projects goals
- Confidently communicating and collaborating with your fellow developers in a remote team environment.
- Maintain high standards of software quality within the team by establishing good coding practices.
What are we looking for?
- Must have experience in Nodejs.
- Have excellent knowledge of different data structures and algorithms
- Working knowledge of any other programming languages is good to have
- Experience with, or understanding of, Kafka or Redis, Cloud infrastructure services, Docker is an added advantage
- Experience with SQL or NoSQL databases, MySQL, MongoDB, Elasticsearch, etc.
- Experience in Backend and APIs development
- Experience in analyzing and optimizing the platform’s performance
We look forward to hear from you:)
Experience in Microsoft Azure Cloud Services, Azure Storage, Azure Development and Configuration, Azure Active Directory (AD), Cosmos DB / Document DB, .NET Core, ASP.NET, C#, MVC
Experience in implementing the Azure services to web apps.
Good knowledge and experience in Microsoft Azure, Cloud Services, Azure Storage, Azure performance optimization
Good experience in developing, configuring, deploying applications using Microsoft Azure
Experience in building services hosted in Microsoft Azure Cloud Services
Good experience in design and development of .NET Core, ASP.NET, MVC, and SQL Server-based web applications
Experience on Containerization, micro service development on Azure is preferred.
Experience in designing web application, REST APIs and database schema
Design & Development Skills .Net, MVC, Angular, Web Services, Web APIs & Power shell scripting
Good understanding of distributed & multi-tenant systems.
Should be able to migrate and integrate cloud services.
In-depth knowledge of design issues and best practices.
Solid understanding of object-oriented programming.
The candidate will be responsible for working on .NET based projects for our clients in USA. The candidate must be self-motivated and quick learner. The candidate should also be able to communicate with the client on a regular basis and gather requirements from the client, provide updates. The work would be in ASP.NET / VB.NET and C# with SQL Server databases. The candidate will be responsible for maintaining existing web applications as well as implement new applications based on client requirements.
Required Experience, Skills and Qualifications
- Must have 3+ years experience in ASP.Net with C# and VB.NET
- Must have at least 2 years experience in SQL Server
- Must have experience working with SOAP and REST Web Services
- Must have experience with SSRS and SSIS
- Must have some experience with MVC framework and Angular JS
- Must be able to work with basic CSS and HTML
- Must be able to work with jQuery and Javascript
- Experience with Reporting Services, WCF, etc would be a strong positive
Ecperience- Minimum 3 years
Location - Ahmedabad
- 1.5+ Years of experience in .net, asp.net and C#, WCF/API and REST services.
- Hands on experience with CSS, Javascript and JQuery.
- Strong knowledge in OOPS concepts.
- Knowledge of T SQL with Sql server 2008 R2/2012 including Stored Procedures, Triggers & User Defined Functions.
- Good to have CSS3 and HTML5 knowledge.
- Good communication Skills are required.












