
Required Skills for the Java role :
- Experience in Core Java, CXF, Spring.
- Experience in spring boot, microservices.
- Extensive experience in developing enterprise-scale n-tier applications for the 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.
- Bachelor's/Master’s degree in Computer Science or related field from a top-tier institute (IIT, NIT, BITS, etc.).

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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About NonStop io Technologies:
NonStop io Technologies is a value-driven company with a strong focus on process-oriented software engineering. We specialize in Product Development and have a decade's worth of experience in building web and mobile applications across various domains. NonStop io Technologies follows core principles that guide its operations and believes in staying invested in a product's vision for the long term. We are a small but proud group of individuals who believe in the 'givers gain' philosophy and strive to provide value in order to seek value. We are committed to and specialize in building cutting-edge technology products and serving as trusted technology partners for startups and enterprises. We pride ourselves on fostering innovation, learning, and community engagement. Join us to work on impactful projects in a collaborative and vibrant environment. We're seeking an experienced Backend Software Engineer to join our team. As a backend engineer, you will be responsible for designing, developing, and deploying scalable backends for the products we build at NonStop. This includes APIs, databases, and server-side logic.
Responsibilities:
● Design, develop, and deploy backend systems, including APIs, databases, and server-side logic
● Write clean, efficient, and well-documented code that adheres to industry standards and best practices
● Participate in code reviews and contribute to the improvement of the codebase
● Debug and resolve issues in the existing codebase
● Develop and execute unit tests to ensure high code quality
● Work with DevOps engineers to ensure seamless deployment of software changes
● Monitor application performance, identify bottlenecks, and optimize systems for better scalability and efficiency
● Stay up-to-date with industry trends and emerging technologies; advocate for best practices and new ideas within the team
● Collaborate with cross-functional teams to identify and prioritize project requirements
Requirements:
● At least 2+ years of experience building scalable and reliable backend systems
● Strong expertise in NodeJS/NestJS, Express, PostgreSQL
● Experience with microservices architecture and distributed systems
● Proficiency in database design (SQL and NoSQL)
● Knowledge of cloud platforms (AWS, Azure, or GCP) and CI/CD pipelines
● Deep understanding of design patterns, data structures, and algorithms
● Hands-on experience with containerization technologies like Docker and orchestration tools like Kubernetes
● Exceptional communication and leadership skills
● Strong understanding of object-oriented programming principles and design patterns
● Familiarity with automated testing frameworks and methodologies
● Excellent problem-solving skills and attention to detail
● Strong communication skills and ability to effectively lead and maintain a collaborative team environment
Strong Software Engineer, Engineering Manager Profiles
Mandatory (Experience) – Must have minimum 4+ years of hands on experience in software development
Mandatory (Tech Skillset) – Must have 3+ years of hands-on experience in backend development using Java / Node.js / Go / Python (any 1) OR 3+ YOE in frontend Development using React / Angular / Vue (any 1)
Mandatory (Mentoring Skillset) – Must have at least 1+ year of experience leading or mentoring a team of software engineers.
Mandatory (Tech Skills) – Must have a solid understanding of microservices architecture, APIs, and cloud platforms (AWS / GCP / Azure).
Mandatory (DevOps Skillset) – Must have hands-on experience working with Docker, Kubernetes, and CI/CD pipelines.
Mandatory (Company) – Top-tier/renowned product-based company (preferred Entreprise B2B SaaS)
Mandatory (Education) – Undergraduation from Tier-1 Engineering College (IIT, BITS, IIIT, NSUT, DTU, etc.)
Mandatory (Note): No hire policy from Sprinklr
Key Responsibilities:
• Design, develop, and maintain Java-based applications using best practices and modern frameworks.
• Integrate and manage AWS services such as EC2, S3, RDS, Lambda, and CloudFormation.
• Develop RESTful APIs and microservices architecture to support scalable and robust applications.
• Implement CI/CD pipelines using tools like Jenkins, Git, and Docker to automate deployment processes.
• Monitor and troubleshoot application performance, defect triaging, and reliability issues, providing timely support and resolution.
• Collaborate with cross-functional teams to gather requirements, design solutions, and deliver high-quality software.
• Conduct code reviews and ensure adherence to coding standards and best practices.
• Stay updated with the latest industry trends and AWS services to continuously improve our technology stack.
Qualifications:
• Bachelor’s or Master’s degree in Computer Science, Engineering, or a related field.
• 5-7 years of experience in Java development, with a strong understanding of object-oriented programming and design patterns.
• Proficiency in AWS services such as EC2, S3, RDS, Lambda, CloudFormation, etc.
• Experience with Spring Boot and other Java frameworks.
• Strong knowledge of SQL and NoSQL databases.
• Familiarity with containerization technologies like Docker and Kubernetes.
• Experience with CI/CD tools and processes.
• Excellent problem-solving skills and the ability to work independently and as part of a team.
• Strong communication skills and the ability to articulate technical concepts to non-technical stakeholders.
Are you passionate about backend development and building scalable applications? Join our growing team!
Technical Skills:
- Extensive experience in programming/scripting languages and frameworks in at least two Node.js, Java Springboot, and Python.
- Understanding of architectural patterns like Flux and MVC is a desirable
- Work experience in REST API service, Socket connections, and mechanisms to handle real-time async data is important.
- Strong knowledge in OOPS, GIT, SQL/nonSQL DB (such as Elastic DB, Mongo DB, MySQL), Design Patterns
- Preferred to have experience with microservices, API gateway, AAA service
- Good knowledge of coding standards, design patterns, unit testing frameworks, TDD, CI/CD practices.
Must have previous experience in leading a team-
- Experience with RESTful web services, CSS, and HTML5 is desirable-
- Experience with designing and building APIs with REST/Microservices
- Good to know about AWS Lambda & supporting configuration knowledge. Knowledge of any of the serverless frameworks like Serverless, AWS SAM would be an advantage.-
- Good to know of API Gateway and CloudFront.-
👉 Required Skills:
- Strong experience with Node.js
- Hands-on expertise in Payment Gateway Integration
- Proficient in MySQL Database Management
- Knowledge of Socket Programming is a big plus!
● Complete ownership of the components that one works on - starting from
architecture design to monitoring metrics post deployment
Strong bias for action with a problem solving mindset. Meeting current
requirements or resolving issues while keeping bigger picture in mind.
● Thinking big while designing components. Keeping in mind that if we build our
current version for x users, it will be 10x within a year & 100x within 1.5 years
hands on experience in software development with excellent
problem-solving skills.
● Hands on experience on building highly-available, scalable systems.
● Expertise in Java with data structures, algorithms, spring, hibernate skills.
● Knowledge of NoSQL, MongoDB, caching data stores, queuing and search.
● Proficiency in computer science fundamentals: Object oriented design, data
structures, algorithm design, and complexity analysis.
● Good with the design patterns and architecture solution to large scale
applications.
● Nice to have: Cassandra, Kafka, Aerospike development experience with highly
scalable and performant software systems.
Requirements
- 2-5 years of experience as a back-end developer
- Expertise with Java 1.8 and React JS
- Understanding of OOPS concepts, Design Principles, and implementations of different types of Design Patterns.
- Should have a strong acumen in Data Structures, Algorithms, problem-solving.
- Experience in Microservices
- Extensive experience in developing Web Services APIs using RESTful API design
- Comfortable writing Unit Test Cases
- Good to have experience/knowledge of
- Docker,
- Scala,
- Python, and
- AWS and other Cloud platforms
- Able to connect the dots between code and business value
Responsibilities
- Engage in high-level conversations about business strategy and the role tech plays in it
- Write well-designed, testable, and efficient code that powers our application
- Write specs and do planning for everything we build
- Conduct application analysis, testing, and debugging
- Diligently document code to keep it clean and transparent
- Ensure cross-browser and device compatibility
You Are
- You believe it’s always on you to make sure anything you do is a success.
- You have the ability to make quick and effective decisions.
- In love with a challenge. You revel in solving problems and want a job that pushes you out of your comfort zone.
- Open to change. You’re inspired by the endless ways in which everything we do can always be improved.
Backend Developer
Role : Backend Developer
Department : Technology Team
Experience : 2 - 3 Years of working experience in Backend
Experience in a related position from Gaming Industry would be preferred
Location : South Delhi; 5 Day Working
Qualification : Bachelor’s degree in Technology
Major Skills : Java, NodeJs, Microservices, Data Structures, etc
Ideal Candidate Requirements :
- Experience in development of Java and NodeJs based applications.
- Experience in building microservices from scratch to production level.
- Strong experience in Core Java and MultiThreading
- Good Knowledge of Data Structures
- Worked on Oracle, REDIS and DYNOMITE
- Good Knowledge of Telecom Protocol SIP
Ideal Candidate Skills Requirements :-
- Distributed systems - Microservices - Algorithm design, System Design
- Performance Engineering, Scalability and Architecture
- Gaming Models, Matching and Allocation Algorithms
- Spring Boot, Hibernate, Java reactive, JPA
- Relational Databases - MSSQL,
- Design Patterns : MVC, Singleton, Adapter, Factory, Builder, Strategy
- Messaging Queues - Apache Kafka
- Cache - Redis
- Search - Elastic Search
- Java
- NoSQL - Mongo, Cassandra
- Jenkins, GIT, BitBucket, JIRA
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You’ll spend time on the following Developing high-volume, low-latency applications for mission-critical systems and delivering high-availability and performance. Write maintainable/scalable/efficient code. Contributing in all phases of the development lifecycle. Continue to innovate and build solutions to support business growth and launch new features. Object-Oriented Analysis and design using common design patterns. Given a fuzzy product requirement, work with other stakeholders, product to understand & refine the requirements and change them to tech requirements Work in a cross-functional team, collaborating with peers during entire SDLC. Managing the developed applications and live support.
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We’re Excited About You If You Have Excellent coding skills in Java/J2EE Strong problem-solving skills, data structures and algorithms. Have experience in building and maintaining large scale web applications in service-oriented architecture. Good Understanding of Java 8 with proven hands-on skills Experience in Spring Framework - Spring Boot, Spring Data, Spring REST Experience in Spring Reactive Good understanding of SQL and MYSQL Knowledge of professional software engineering practices & best practices for the full software development life cycle, including coding standards, code reviews, source control management, build processes, testing, and operations Understands version control branching strategies Understands different major language paradigms (object oriented / functional /reactive) Understanding of AWS is a plus Can reason about complexity of algorithms (time and space) Can debug code at ease and ensure quality code is produced Good verbal and written communication skills
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Headquartered in Silicon Valley, Gupshup is a global leader in cloud messaging, enabling businesses to build engaging conversational experiences, seamlessly across 30+ messaging channels, using a globally available cloud API.
Gupshup handles over 4.5 billion messages per month and has processed over 225 billion messages, enabling over 36,000 businesses to engage nearly a billion users across channels including SMS, WhatsApp, Facebook Messenger, Twitter, WeChat, Viber, Slack, Android RCS, Mobile App and Mobile Web.
Gupshup offers a comprehensive product portfolio that includes an easy to use omni-channel messaging API, advanced bot building platform and mobile marketing tools. Gupshup has also forged strategic partnerships with Facebook, WhatsApp, Google and Cisco to offer innovative mobile messaging solutions with broad reach.
You could log on to https://www.gupshup.io/developer/home">https://www.gupshup.io/developer/home for more information.
Location: Mumbai (Goregaon East )
Roles and Responsibilities:
- Experienced in Java and associated technologies.
- Should have worked with highly scalable web applications
- Good debugging capability
- Should be able to search through logs on server and narrow down to root cause of functional issue from stack trace or performance issue from logs of latency of different components.
- Product development experience in agile environment will be a big plus though not mandatory.
- Highly Tech Savvy and hands-on. Good exposure into design patterns
- Good understanding of OOPS concepts.
- Experience of working with open source technology and tools.
Regards,
Tina Dsouza









