
Experience: 5 TO 8
Location: MUMBAI
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. - 5 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 Us:
At Wissen Technology, we deliver niche, custom-built products that solve complex business challenges across industries worldwide.
Founded in 2015, our core philosophy is built around a strong product engineering mindset—ensuring every solution is architected and delivered right the first time. Our commitment to excellence translates into delivering 2X impact compared to traditional service providers. How do we achieve this? Through a combination of deep domain knowledge, cutting-edge technology expertise, and a relentless focus on quality.
We don’t just meet expectations—we exceed them by ensuring faster time-to-market, reduced rework, and greater alignment with client objectives. We have a proven track record of building mission-critical systems across industries, including financial services, healthcare, retail, manufacturing, and more.
Wissen stands apart through its unique delivery models. Our outcome-based projects ensure predictable costs and timelines, while our agile pods provide clients the flexibility to adapt to their evolving business needs. Whether it’s AI/ML for unstructured data processing, cloud enablement, or data engineering, Wissen leverages its thought leadership and technology prowess to drive superior business outcomes. Our success is powered by top-tier talent. Our proprietary Interview Ninja platform ensures we hire the best, building high-performing teams that deliver unmatched results.
Today, Wissen Technology has a global footprint with 2200+ employees across offices in the US, UK, UAE, India, and Australia. Our mission is clear: to be the partner of choice for building world-class custom products that deliver exceptional impact—the first time, every time.

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.
Connect with the team
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Position Overview:
We are seeking a skilled Java Developer to join our dynamic team. The ideal candidate will have a strong foundation in Core Java and extensive experience in developing and deploying applications using Spring Boot, Apache Tomcat, and other related technologies. The candidate should possess expertise in building Restful Web Services, Microservices architecture, and be proficient in implementing multi-threading concepts.
Additionally, experience with Maven, Git, Jenkins, and Agile Scrum methodologies is essential for this role. The candidate should also have a solid understanding of software development lifecycle (SDLC) processes. Familiarity with various databases such as MySQL, PostgreSQL, Oracle, or MongoDB, along with third-party API integration and payment gateway integration, is required.
Key Responsibilities:
• Develop, test, deploy, and maintain Java-based applications.
• Design and implement Restful Web Services and Microservices using Spring Boot.
• Utilize multi-threading concepts to enhance application performance.
• Integrate third-party APIs and payment gateways into applications.
• Collaborate with cross-functional teams to gather requirements and deliver high-quality solutions.
• Participate in Agile Scrum ceremonies and contribute to sprint planning, backlog grooming, and retrospectives.
• Ensure adherence to best practices and coding standards.
• Conduct code reviews and provide constructive feedback to peers.
• Troubleshoot and debug complex issues in production environments.
• Document design decisions, processes, and procedures.
Required Qualifications:
• Bachelor’s degree in computer science, Engineering, or related field.
• Minimum 3 years of experience as a Java Developer with expertise in Core Java.
• Strong knowledge of Spring Boot, Apache Tomcat, and multi-threading concepts.
• Hands-on experience in building Restful Web Services and Microservices architecture.
• Proficiency in using Maven, Git, and Jenkins for build and deployment processes.
• Familiarity with Agile Scrum methodologies and SDLC processes.
• Experience working with databases such as MySQL, PostgreSQL, Oracle, or MongoDB.
• Demonstrated ability to integrate third-party APIs and payment gateways.
• Excellent problem-solving and analytical skills.
• Effective communication and collaboration skills.
• Familiarity with NoSQL databases like MongoDB.
• Knowledge of Azure DevOps for CI/CD pipelines
Experience/skills required
Key Qualifications
- Developer Role:
- Preferably Java
- CI/CD - DevOps (Exposure)
- Messaging Middleware (Exposure to Kafka or any other messaging middleware)
- DB: Oracle (pref) - any other Database platforms (SQL/NoSQL)
- Server Side: Java, Spring boot Microservices
- Exposure to Any Major Cloud Platform (AWS/Azure/GCP)

Developer – Golang
Responsibilities:
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An individual contributor who will be part of the Software R&D team working on the following areas
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Backend work in Golang, Micro services architecture
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Work with internal team and customers to deliver solutions that will meet the customer needs with respect to the performance security, scalability and functionality.
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Implementation of API and authentication methods using JWT
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Writing scalable, robust, testable, efficient, and easily maintainable code
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Translating software requirements into stable, working, high performance software
Skills
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2-5 years of experience in Go programming language
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Strong experience in working with Goroutine and channel patterns
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Experience in Go framework for DB, JSON, Sockets, Web Frameworks and tools
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Knowledge of logging and configuration packages like Zap, Viper
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Experience in writing unit tests for Golang code
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Familiarity with code versioning tools such as Git or Azure Repo
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Should have knowledge of MySQL, PostgreSQL, or any RDBMS
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Good knowledge of Linux / Ubuntu
- Providing technical guidance as well hands on management for all product development within the company.
- Identifying frameworks/ technologies/ languages/ libraries to be used to achieve desired goals.
- Underscores pros and cons of various technologies available and presenting arguments to management and technical team.
- Taking responsibility for refactoring existing code.
- Leading, managing and mentoring a team of 5+ engineers.
- Serving as a key member of the management team that sets the company's strategic direction.
- Defining standards & best practices to support agile development processes.
- Planning, tracking and estimating product development activities.
- Ensuring the optimal application of technology and engineering resources to meet product development and/ or customer requirements as per the product and/ or marketing requirements document.
- Ensuring that the product quality is world class at all times.
- Growing the internal information technology development organisation; managing and recruiting a multidisciplinary high-performance technology team.
- Developing RESTful backend services if needed
- Ensuring implementation of formal processes to support the product development process.
- Passionate about automated testing: Managing / driving testing - unit tests, system tests, regression.
- Performance Tuning/ Profiling: In-depth understanding of popular architectures SOA, RESTful, Microservices, Messaging Bus.
What you need to have:
- B.E / B.Tech or similar qualification from a premier institute.
- Good communication skills.
- Self-starter, Highly motivated.
- People Management skills.
- Go-getter attitude.
- 3 - 7 years of hands-on development experience in backend development with a track record of solid technical accomplishments. Node.js experience will be preferred.
- Knowledge of multiple programming languages will be preferred.
- Knowledge of Caching solutions Redis, Memcache
- Databases experience - MySQL/NoSQL, RabbitMQ, Kafka.
- Capability to present different architecture for the same problem.
- Knowledge of popular front end MVC technologies.
- Understanding of production level problems and their possible solutions
Java Developers (4-5 positions)
What qualities are we looking for?
- 3 – 8 years of experience in building web applications
- Excellent command over Data Structures & Algorithms
- Exceptional coding skills in an Object-Oriented programming language (Java)
- Strong problem solving and analytical skills
Technical Requirements:
- Working experience on JAVA, Spring Boot. (building web services)
- Working experience in building microservices and distributed systems.
- Working experience on using messaging queues RabbitMQ/Kafka is a plus.
- Knowledge of multiple front-end languages and libraries (e.g. HTML/ CSS, JavaScript, XML, jQuery, Angular 5+)
- Excellent knowledge and programming skills in data structures, algorithms.
- Familiarity with databases (e.g. MySQL, MongoDB)
- Proficiency with Git
Architects are responsible for driving Technology & Best Practices in Engineering. We are a rapidly growing & constantly improving organisation. We seek very high levels of ownership in all individuals, especially leadership roles like this - Ownership of your team, your product. Going beyond your role & contributing to make the organisation & business better is an expectation.
Responsibilities:
- Actively participate in development along with team members for as much as 50% of their time, creating modules & systems that can then be treated as a working reflection of the best practices.
- Participating in code reviews, design reviews, architecture discussions.
- Being responsible for Scaling, Performance & Quality for the team
- Setting up best practices to help the team achieve the above and constantly thinking about improving the technology use are your responsibilities.
- Driving the adoption of these best practices around coding, design, quality, performance in your team and influence them for the entire organisation are also expectations from you.
- Experiment with new & relevant technologies and tools, and drive adoption while measuring yourself on the impact you are able to create
- Collaborate with Product Management and Product Development leaders in developing product visions and strategies.
- Define & drive implementation of long term technology vision for your product & team
- You will be the primary owner of the architecture of your product and will also be responsible for getting it reviewed, and making sure the system is built accordingly.
- Be an evangelist for technology & represent in external forums.
- Creating architectures & designs for new solutions around existing and new problem spaces
- Drive technology & tool choices for your team & be responsible for them.
Requirements:
- Quick & Excellent Problem solving skills for complex & large scale problems
- Exposure to a wide variety of problem spaces, technologies
- Very Strong System design and OO skills with a nifty ability to craft clean interfaces and operate at the right levels of abstraction
- Solid coding skills with ability to drive teams through massive refactoring exercise & improve coding standards across large code bases
- Deep knowledge, understanding & experience of working with a large variety of multi-tier architectures.
- Awareness of pitfalls & use cases for a large variety of solutions
- Deep understanding & experience of high performance web scale & real-time response systems with experience & expertise in a variety of large scale persistent systems including large databases
- Exposure to complete product development cycles - From inception to production to scaling up, supporting new requirements, re-architectures the Principle architects should have seen it all and ideally in multiple cycles.
- Should have been part of scalable product development cycles with either large data handling or large transaction processing exposure for 5 years
- Must have worked in a small setup (either a startup or a small & reasonably independent team)
- 8+ years of overall experience
- B Tech or higher in Computer Science or equivalent required
Primary Duties
• Build a broad knowledge across various systems and processes via knowledge transfer and capture any missing information on the wiki
• Gather software requirements by talking to various stakeholders and document them
• Implement software solutions after discussing the requirements and taking direction from the Technical lead and talking to other colleagues within and outside the team
• Provide necessary effort and time estimates for tasks to aid scheduling and prioritization
• Provide necessary 3rd line support to the Operations teams including software fixes as needed
• Work on any BAU development activity including on-boarding new data sets and delivering new markets into the system
• Work with external vendors from time to time to gather necessary requirements for new data or changes to existing data specifications
• Maintain pro-active communication with relevant stakeholders and keep them updated on progress
General
- Any other duties commensurate with the post holder’s position and seniority; and
- All employees should understand that it is their personal responsibility to comply with all organisational, statutory and regulatory policies and procedures.
Experience, Knowledge & Skills
Essential
- 4+ years’ experience of programming in Java.
- 4+ years’ experience working with SQL including complex queries, stored procedures, views, database design and solid understanding of database concepts (preferably SQL Server)
- Experience of both Linux and Windows environments, scripting and tools
- Willing to carry out operational data tasks alongside developing new solutions
- Well organised with the ability to prioritise and manage multiple streams of work
- Excellent communication skills
Beneficial
- Experience working with Cloud environments (preferably AWS)
- Experience in handling financial data sets and familiarity with financial instruments (equities, futures, FX)
- Experience working with data pipelines and building ETL solutions
- Experience working with tools like Flink, Kafka and Tableau
Educational & Professional Qualifications
- Educated to degree (or equivalent) level or higher.
- A degree with mathematical and computing content (e.g. Computer Science, Maths, Physics)
Azine Technologies is known for our innovative technologies, products and services -- and for the people behind them. At Azine, we create identity verification products which are essentially apps, APIs, SDKs which have different modules that undergo OCR, Face Recognition, and other AI and machine learning. We’re looking for a Python Developer who can fulfil the following responsibilities.
Role and Responsibilities
- Design & implement new software modules based on the product requirements
- Debug existing software components, fix issues and avoid regressions
- Be proactive, take ownership and be accountable
- Familiar with Test Drive Development.
- Participate in software architecture, design discussions and code reviews
Qualifications and Education Requirements
Bachelor’s degree and 4+ years of software development experience or equivalent, including Computer Vision and AI/ML.
Understanding of OCR, Neural network and Deep learning.
Expert in Java with knowledge of Java Frameworks.
Knowledge of user authentication and authorization between multiple systems, servers, and environments.
Proficient understanding with code versioning tools such as Git, SVN, etc.
Strong unit test and debugging skills.
Basic understanding of front-end technologies, such as Javascript, HTML5, and CSS3

● Constant benchmarking for capacity and performance
● Documenting feature capability in detail
● Supporting marketing initiatives on the product / differentiators
● Test scenarios for faults / bugs
● On-call (only emergency - L4) support to customer issues
● Building best practices for customer scenarios
Who we are looking for
● Understand the larger picture and work for customer success
● Passionate to solve problems
● Understand the product life cycle









