
Wissen Technology is hiring for Java Tech lead
Required:
- 8-10 years of industrial experience
- Java and related frameworks.
- Experience in Core Java 1.8 and above, Data Structures, OOPS, Multithreading, Microservices, Spring and Swift Payments
- Exposure on Fintech domain is mandatory
- Should have the ability to analyse, design, develop and test complex, low-latency client-facing applications.
- Good development experience with RDBMS
- Good knowledge of multi-threading and high volume server side development
- Excellent problem solving and coding skills in Java
- Strong interpersonal, communication and analytical skills.
Company Profile:
Company Name : Wissen Technology
Group of companies in India : Wissen Technology & Wissen Infotech
Work Location - Bangalore
Website : www.wissen.com
Wissen Thought leadership : https://www.wissen.com/articles/
LinkedIn: https://www.linkedin.com/company/wissen-technology

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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Qualifications
- 4+ years of software development experience in Java 8. Knowledge of Java 9.
- Experience in developing micro services in Spring Boot or Node.js. Experience in security, transaction, Idempotency, log tracing, distributed caching, monitoring and containerization requirements of Micro services. Experience in developing High Cohesion & Loosely Coupled Micro Services
- Should have excellent acumen in Data Structures, Algorithms, problem-solving and Logical/Analytical skills. Thorough understanding of OOPS concepts, Design principles and implementation of different type of Design patterns.
- Sound understanding of concepts like Exceptional handling, Serialization/Deserialization and Immutability concepts, etc. Good fundamental knowledge in Enums, Collections, Annotations, Generics, Autoboxing, etc.
- Experience with Multithreading, Concurrent Package and Concurrent APIs
- Basic understanding of Java Memory Management (JMM) including garbage collections concepts.
- Experience in RDBMS or NO SQL databases and writing SQL queries (Joins, group by, aggregate functions, etc.)
- Hands-on experience with JMS. Hands-on experience in creating RESTful webservices and consuming webservices. Hands-on experience with Spring.
- Hands-on experience with any of the logging frameworks (SLF4J/LogBack/Log4j)
- Experience of writing Junit test cases using Mockito / Powermock frameworks. Should have practical experience with Maven/Gradle and knowledge of version control systems like Git/SVN etc.
- Good communication skills and ability to work with global teams to define and deliver on projects. Sound understanding/experience in software development process, test-driven development.
- 4+ years of software development experience in Java 8. Knowledge of Java9.
- Experience in developing micro services in Spring Boot or Node.js. Experience in security, transaction, Idempotency, log tracing, distributed caching, monitoring and containerization requirements of Micro services. Experience in developing High Cohesion & Loosely Coupled Micro Services
- Should have excellent acumen in Data Structures, Algorithms, problem-solving and Logical/Analytical skills. Thorough understanding of OOPS concepts, Design principles and implementation of different type of Design patterns.
- Sound understanding of concepts like Exceptional handling, Serialization/Deserialization and Immutability concepts, etc. Good fundamental knowledge in Enums, Collections, Annotations, Generics, Autoboxing, etc.
- Experience with Multithreading, Concurrent Package and Concurrent APIs
- Basic understanding of Java Memory Management (JMM) including garbage collections concepts.
- Experience in RDBMS or NO SQL databases and writing SQL queries (Joins, group by, aggregate functions, etc.)
- Hands-on experience with JMS. Hands-on experience in creating RESTful webservices and consuming webservices. Hands-on experience with Spring.
- Hands-on experience with any of the logging frameworks (SLF4J/LogBack/Log4j)
- Experience of writing Junit test cases using Mockito / Powermock frameworks. Should have practical experience with Maven/Gradle and knowledge of version control systems like Git/SVN etc.
- Good communication skills and ability to work with global teams to define and deliver on projects. Sound understanding/experience in software development process, test-driven development.
Additional Information
- Gender-Neutral Policy
- 18 paid holidays throughout the year for NCR/BLR (22 For Mumbai)
- Generous parental leave and new parent transition program
- Flexible work arrangements
- Employee Assistance Programs to help you in wellness and well being
Job Title: Lead Java Developer
Experience Required: 7+ Years
Location: Mumbai
About the Role
We are seeking a highly skilled Senior Backend Developer with deep expertise in building scalable, high-performance applications. The ideal candidate will have strong hands-on experience with Java, Spring Boot, Microservices, and distributed systems. You will play a key role in designing and optimizing APIs, architecting robust systems, and collaborating with cross-functional teams to deliver innovative solutions.
Key Responsibilities
- Design, develop, and maintain scalable backend systems using Java, Spring Boot, and Microservices architecture.
- Build and optimize APIs for large-scale applications ensuring high performance and reliability.
- Apply clean coding principles, SOLID design patterns, and clean architecture to deliver maintainable and robust code.
- Work with distributed systems technologies (Kafka, ELK, in-memory databases, Cassandra, or similar).
- Write efficient SQL queries and integrate with relational and NoSQL databases.
- Collaborate with product managers, architects, and other developers to define and align on technical decisions.
- Identify and solve complex problems with innovative and scalable solutions.
- Drive best practices in coding standards, system design, and performance optimization.
- Communicate complex technical concepts clearly across teams and stakeholders.
Skills & Qualifications
- 7+ years of experience as a Backend Developer.
- Strong expertise in Java, Spring Boot, Microservices, SQL.
- Significant experience in API design and optimization for enterprise-scale applications.
- Proficiency in distributed systems & related technologies (Kafka, ELK, in-memory DBs, Cassandra, etc.).
- Strong understanding of object-oriented engineering principles (SOLID, clean architecture).
- Excellent problem-solving and analytical skills with the ability to simplify complex concepts.
- Strong communication and collaboration skills, with the ability to influence and align teams.
Job Title: IAC SRE Engineer
Location: Pune, Mumbai, Bangalore
Experience Required: 4 Years
Role Overview:
We are looking for experienced IAC Engineers with a strong background in Akamai, Data Structures & Algorithms (DSA), Java, and DevSecOps. The ideal candidate should have hands-on development experience, be proficient in writing Infrastructure as Code using Terraform, and demonstrate strong problem-solving skills.
Core Skills:
- Akamai – Strong experience in CDN, caching, and performance optimization.
- Data Structures & Algorithms (DSA) – Strong problem-solving and coding abilities.
- Java – Solid programming background and experience in development.
- DevSecOps – Understanding of integrating security in CI/CD pipelines and infrastructure.
Good to Have:
- WAF (Web Application Firewall) – Knowledge of WAF is a plus, though not mandatory.
Additional Skills:
- Experience with SRE (Site Reliability Engineering) practices is beneficial.
- Strong hands-on with Terraform for managing cloud infrastructure.
Job Title: Java Developer (Immediate Joiners Only)
Experience: 5+ Years
Work Locations: Pune, Gurgaon, Noida, Bangalore, Ahmedabad
Work Mode: Hybrid
Joining: Immediate Joiners / Candidates who have completed their notice period only
About Us
At Deqode, we build high-performing engineering teams for cutting-edge technology solutions. We are currently looking for experienced Java Developers who are passionate about scalable systems, clean code, and modern architectures.
Key Responsibilities:
- Design, develop, test, and maintain Java-based applications using Java 8 and Spring Boot
- Build robust RESTful APIs and integrate with third-party services
- Work on microservices architecture, including containerization and orchestration
- Ensure the performance, quality, and responsiveness of applications
- Identify bottlenecks and bugs and devise solutions to these problems
- Participate in code reviews and contribute to technical discussions
- Collaborate with cross-functional teams to define and deliver new features
- Write unit and integration tests to maintain code quality
Mandatory Skills:
- Strong hands-on experience with Java 8 or above
- In-depth knowledge of Spring Boot and Microservices architecture
- Experience in developing RESTful APIs
- Proficient in object-oriented design principles and software design patterns
- Good understanding of databases (SQL/NoSQL)
- Familiarity with version control tools like Git
- Exposure to CI/CD practices and tools
Good to Have:
- Knowledge of containerization (Docker, Kubernetes)
- Experience with messaging queues (Kafka, RabbitMQ)
- Cloud exposure (AWS/Azure/GCP)
- Basic knowledge of unit testing frameworks like JUnit, Mockito
- BS in CS or EE or equivalent
- Experience working on large scale systems in rapid growth environments
- Experience with public cloud offerings (AWS, GCP, Azure)
- Solid programming skills; preferred experience in Java, and/or Python
- Experience with modern web frameworks, advanced algorithms/data intelligence, public
- cloud platforms and streaming data pipelines
- Familiarity with containerization, microservices architecture, continuous integration, and delivery
- 5+ years’ experience preferred
· 3+ yrs of experience in product development (Preferring SaaS based)
· Must have experience in Java web-based application development
· Hands on development experience on Java/J2EE, Springboot, Spring, Struts, Hibernate, REST Services
· Experience on HTML, JavaScript, JQuery
· Hands on experience on database-writing queries/procedures
· Experience on SVN,GIT,
· Knowledge of Server configuration
· Knowledge of cloud preferably AWS
1. Work experience between 3 years to 9 years in building large scale high user traffic consumer facing applications with desire to work in a fast paced startup.
2. Knowledge on reactive and asynchronous programming is preferable. If you have worked with coroutines, goroutines, high concurrency or optimized number of threads for processing on your backend server you could be a good fit.
3. Extremely proficient at writing performant, scalable and production ready code in Kotlin, Java (8 or above, comfortable with concepts like lambda, streams, multithreading etc), Elixir, Rust, or Golang. Should be familiar with static code analysis, code coverage and code reviews.
4. Experience with NoSQL DBs like MongoDB, Cassandra, Redis or Aerospike is required. Knowledge of graph DBs like Neo4j is preferred.
5. Strong in algorithms, problem solving and data structures.
6. Knowledge of TDD and experience with building applications integrated with CI-CD pipelines (automated build, tests and deployments).
7. Exposure to micro-services with good understanding of containers, kubernetes, logging, alerting and monitoring. Inter services communication. Should know how to handle multiple versions of APIs.
Brief Overview:
Through your work at Vauld, you will have the opportunity to change money for the 21st century. We’re a leading cryptocurrency platform and are passionate about increasing economic freedom around the world.
We are looking for a Lead Backend Engineer who has hands-on experience working with and leading Product teams and has solved for and built complex backend solutions. You'll be involved with bringing features and products from idea to completion and mentoring an incredibly talented group of peers.
If you are looking for a challenging work environment where you can grow and deepen your technical skills as a backend engineer and architect, we’d love to chat with you!
Key Responsibilities:
- Working with CXO’s, product managers, devops, and frontend engineers to collaboratively own the backend-end layer for Vauld’s application.
- Architect and build highly scalable, secure features keeping the long term vision of the product.
Requirements:
- You have 7 years or more of backend development experience with expertise in designing and implementing high-performance applications.
- Worked with and built high performance products using Node Js/GoLang/ Python and have seen the product evolution cycle from PoC to Production
- You have a deep understanding of design principles and can rightly judge/implement solutions to complex problems
- You are capable of writing high-quality code that conforms to the standards and best practices in a particular language/framework.
- You have experience building a product using a mainstream library or framework.
- You love to own end to end responsibility, starting from defining the problem statement (either yourself or alongside your peers), development (PoC if needed), testing, releasing in staging & then production environment, and finally monitoring.
Preferred:
- Previous work experience in product-based startups
- Experience building for products that have scaled and have seen the product evolution
- Understands the cryptocurrency landscape
Working at Vauld:
You will join a fun and intellectually stimulating work environment. If you’re excited by the idea of making a real impact and joining a team where we pride ourselves on being disruptive and ambitious, a career with Vauld is perfect for you.
The Solution Architect plays a critical role in the architecture design and development of globally consistent Liquidity and Cash Management solutions and is a key contributor to the overall delivery in a fast-paced and challenging environment.
Responsibilities:
- Develops technology road maps, while keeping up-to-date with emerging technologies, and recommends business directions based on these technologies
- Provides technical leadership and is responsible for developing components of, or the overall systems design.
- Translates complex business problems into sound technical solutions.
- Provides integrated systems planning and recommends innovative technologies that will enhance the current system.
- Contribute to ongoing architecture governance and reviewing proposed solutions.
- Lead integration of new and existing components with ICG Platforms.
Qualifications:
- 10+ years relevant experience
- Experience as Full-Stack Developer and Experience as Architect Desired
- Understanding of integration technologies concepts like Webservices, REST API etc
- Familiar with DevOps tools like Maven, Jenkins, Bitbucket etc
- Consistently demonstrates clear and concise written and verbal communication
- Management and prioritization skills
- Ability to develop working relationships
- Ability to manage multiple activities and changing priorities
Education:
- Bachelor’s/University degree or equivalent experience, potentially Masters degree
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











