
Java Lead We are solving complex technical problems in the financial 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. About Wissen Technology: Wissen Technology is a niche global consulting and solutions company that brings unparalleled domain expertise in Banking and Finance, Telecom and Startups. Wissen Technology is a part of Wissen Group and was established in the year 2015. Wissen has offices in the US, India, UK, Australia, Mexico, and Canada, with best-in-class infrastructure and development facilities. Wissen has successfully delivered projects worth $1 Billion for more than 25 of the Fortune 500 companies. The Wissen Group overall includes more than 4000 highly skilled professionals. Wissen Technology provides exceptional value in mission critical projects for its clients, through thought leadership, ownership, and assured on-time deliveries that are always ‘first time right’. Our team consists of 1200+ highly skilled professionals, with leadership and senior management executives who have graduated from Ivy League Universities like Wharton, MIT, IITs, IIMs, and NITs and with rich work experience in some of the biggest companies in the world. Wissen Technology offers 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. We have been certified as a Great Place to Work® for two consecutive years (2020-2022) and voted as the Top 20 AI/ML vendor by CIO Insider. Experience: 8–13 years in Java development. Domain Expertise: Background in product-based companies, investment banking experience preferred. Leadership: Proven ability to lead teams of 3–4 members. Technical Depth: Hands-on with complex systems and distributed architectures. Soft Skills: Strong analytical thinking, problem-solving, and excellent communication. Process Knowledge: Expertise in end-to-end SDLC and Agile methodologies. Tech Stack ● Languages & Frameworks: Core Java, J2EE, Spring Boot, Spring Framework. ● Architecture: RESTful APIs, Microservices. ● Persistence: Hibernate/JPA. ● Databases: Postgres, MySQL (or similar). ● Tools: Maven/Gradle, CI/CD pipelines. ● Cloud: AWS/Azure (nice to have).

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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Required Skill Set
Software Engineer/Senior Software Engineer/Lead Engineer-Java
- Experience in Core Java 8.0 and above, Data Structures, OOPS, Multithreading, Algorithms, Collections, Unix/Linux
- Possess good architectural knowledge and be aware of enterprise application design patterns.
- 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
- 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.
Responsibilities
- Understand product requirements and come up with solution approaches
- Build and enhance large scale domain centric applications
- Deploy high quality deliverables into production adhering to the security, compliance and SDLC guideline.
Job Description
Key Responsibilities:
- Design, develop, test, and deploy high-quality backend solutions using Java and Spring Boot.
- Build and maintain scalable microservices that interact with various data sources and front-end applications.
- Develop RESTful APIs for internal and external consumption.
- Write clean, maintainable, and efficient code following best practices and coding standards.
- Collaborate with cross-functional teams including front-end developers, QA, and DevOps.
- Troubleshoot and resolve technical issues across environments.
- Participate in code reviews, unit testing, and integration testing.
- Ensure application performance, uptime, and scale by identifying and resolving bottlenecks.
Required Skills & Qualifications:
- Strong proficiency in Java (8 or higher).
- Hands-on experience with Spring Boot framework.
- Experience in developing RESTful APIs and understanding of HTTP protocols.
- Solid understanding of Microservices architecture and related patterns (e.g., service discovery, circuit breaker).
- Familiarity with relational and NoSQL databases (e.g., MySQL, PostgreSQL, MongoDB).
- Understanding of containerization tools (e.g., Docker) and orchestration tools (e.g., Kubernetes) is a plus.
- Knowledge of CI/CD pipelines and version control tools like Git.
- Excellent problem-solving skills and attention to detail.
- Good communication and teamwork skills.
Preferred Qualifications:
- Experience with cloud platforms such as AWS, Azure, or GCP.
- Familiarity with message brokers like Kafka or RabbitMQ.
- Exposure to Agile/Scrum development methodologies.
- Work experience as a Java Developer.
- Experience designing, building and testing Java EE applications.
- In-depth knowledge of popular Java frameworks like JSF and Spring MVC.
- Very good understanding of design patterns Hands on experience on ORM framework
- Design and develop reusable libraries and APIs.
- Experience with Object-Oriented Design (OOD).
- Experience on handling exceptions Experience on handling transaction
- Excellent knowledge of Relational Databases, SQL and ORM technologies ( JPA2, Hibernate)
Job Description:
As a Software Development Engineer at Jumbotail you will-
§ Be a part of our initial core team to design and develop our marketplace platforms from scratch
§ Work on building scalable backend platform for customer & seller apps, brands platform, demand
generation platform, supply chain & logistics platform, credit platform and several cross platform
software components
§ Participate in the process to fundamentally change the food and grocery ecosystem in India, and
impact billions of people through technology, mobile, and data science
Requirements:
An ideal candidate for this role is someone who has-
§ BE/BTech degree in Computer Science from a top engineering school
§ 3-5 years of professional software development experience
§ Strong problem solving skills and strong command on object oriented design, data structures,
algorithms and other computer science fundamentals.
§ Strong coding skills – professional experience in developing production-quality software in Java.
§ Expertise in Web Services, Service-oriented architecture, Databases, NoSQL, Distributed systems,
Cloud Technologies.
§ Extreme software engineering skills to design and develop low-latency, high availability, internetscale
web services
§ Solid understanding of the full software development life cycle and software engineering best
practices
§ Ability to understand business requirements and translate them into technical requirements
§ Demonstrated ability to own software design and development end to end from requirements to
launch.
§ Ability to collaborate with cross-functional teams to define, design, and ship new features.
§ A startup mindset – An athlete who can run at breakneck speed of a startup, yet someone who can
bring method to madness through processes suitable for different stages of the company – early
stage prototyping and rapid experimentation, before product/market fit, after product/market fit,
and scaling.
§ Familiarity with Agile development, Scrums, continuous integration, and test driven development
processes
§ Data driven product development approach – strong focus on data backed engineering decisions.
§ Ability to develop products incrementally in fast iterations
§ Ability to do collaborative problem solving and design/build chaos resilient systems
§ Strong focus on software quality
§ Ability to mentor junior developers, and help build an excellent engineering team
§ Ability to be a talent magnet – attract great talent to join the core team.
We are looking for warriors who have the hunger to impact real lives and who can match our high
bar on Core Values that we live by.
If you-
§ can apply first principles thinking to solve problems
§ can envision a great future that you want create
§ have the fire in your belly to get out of your cube and do something about your vision and passion
§ want to work with some really smart people, and still raise the bar for all of us
§ can have fun and help your colleagues have fun doing all of the above..
Greetings from Sapper Software Pvt Ltd
Sapper.ai is a cloud native integration platform. Businesses use us to connect their applications, automate and optimize their processes and data connections. Sapper.ai is unique in our ability to connect and move data using any method (APIs, integrations, batch and streaming). We embed AI throughout the platform to proactively recommend integrations and process automations to business users freeing them up from mundane and time consuming tasks.
Website: https://www.sapper.ai/
Senior Java Developer : 3 to 7 years
Work Location: Work in the office at Baner, Pune
Job Requirements:
- Relevant experience in Java 1.7 or higher / J2EE Java development.
. Have experience of agile systems development methodologies such as SCRUM
- Experience in designing the solution and implementation.
- Is a communicative, positive, outgoing and driven team player.
- Solution-oriented, see opportunities and proactively proposing new solutions, speak and write fluently in English.
Skill Set Required:
- Experience in Java 8.
- Experience in Spring Boot and other spring framework like Spring data, AOP etc.
- Experience in MongoDB/ Kafka / RabbitMQ etc.
- Experience in REST API
- Have worked on microservices
- Should have worked on minimum 2- 3 projects
- Experience in writing effective Unit test case for better coverage.
- Experience in writing good quality code by following code quality tools likes SonarQube etc.
Roles and Responsibilities
- Relevant work experience in Java 1.7 or higher / J2EE Java development.
. Have experience of agile systems development methodologies such as SCRUM
- Experience in designing the solution and implementation.
- Is a communicative, positive, outgoing and driven team player.
- Solution-oriented, see opportunities and proactively propose new solutions, speak and write fluently in English.
Desired Candidate Profile
- Experience in Java 8.
- Experience in Spring Boot and other spring frameworks like Spring data, AOP, etc.
- Experience in MongoDB/ Kafka / RabbitMQ etc.
- Experience in REST API
- Have worked on microservices
- Should have worked on a minimum of 2- 3 projects
- Experience in writing effective Unit test cases for better coverage.
- Experience in writing good quality code by following code quality tools likes SonarQube etc.
Mandatory - Core Java / Java 8 & Spring Boot,
Good to have - MongoDB/Kafka / RabbitMQ / Micro Services
If you are interested and matching as per requirements, kindly share your updated CV and below details on hemant dot hingmire at sapper dot ai
Total Experience?
Relevant Experience?
Core Java?
Java 8?
MongoDB/Kafka / RabbitMQ?
Springboot?
Microservices?
Current Company?
Current CTC?
Expected CTC?
Notice Period (Max 30 days)?
Tentative Date to Join Us?
Reason for Change?
Offer in Hand (Yes/ No) Annual CTC?
Living in Pune Yes / No?
- Design and develop features using Java, Spring, and Hibernate
- Ability to design database schema, develop views and stored procedures
- Maintain existing software systems by identifying and
Correcting software defects.
- Review and analyse business requirements and provide technical software defects.
Key Skills:
- Good understanding of algorithms, data structures & design patterns
- Thorough understanding of core Java, Spring framework
- Experience with Spring Boot to bootstrap applications
- Good understanding and working experience with RESTful web services
- Knowledge of modern authorization mechanisms, such as JSON Web Token and OAuth2 - Familiarity with code versioning tools such as Git, etc.
- Self-starter who can think outside of the box, and come up with a solution to resolve and mitigate complex problems
- Experience working in an Agile development environment using methodologies like Scrum and tools like JIRA, Confluence, etc Experience.Comfortable with MYSQL,Mongodb
Role & Responsibilities:
- Design and develop features using Java, Spring, and Hibernate
- Ability to design database schema, develop views and stored procedures
- Maintain existing software systems by identifying and correcting software defects
- Review and analyze business requirements and provide technical feasibility and estimates
- 2-4 years of work experience developing Java-based backend applications. Around 1 year of work experience e using Spring Boot, Spring Cloud and Microservices.
- Hands-on programmer with ability to write idiomatic code in Java
- Strong preference to write automated unit & integration tests
- Prior experience in designing & deploying Microservices and performant REST APIs
- Good understanding of and experience in Continuous Integration / Continuous Delivery
- Hand-on experience using one of the server-side Java frameworks such as Spring Boot
- Excellent communication skills
Nice to have
- Experience working with AWS or other Cloud providers
- Experience working in Event-Driven systems (using Apache Kafka or something similar)
- Exposure to Angular or React
- Independently own one or more multiple modules, which includes: requirement analysis, design, development, maintenance & support
- Write extensive, efficient code to address complex modules and that handles interaction between multiple components.
- Rapidly iterate to add new functionalities and solves complex problems with simple and intuitive solutions
- Produce architecture with clean interfaces, that are efficient and scalable
- Participate and contribute to architectural discussions
- Perform design and code reviews
- Perform technical feasibility and trade off studies & guides others to perform these studies
- Solve production issues. Investigate and provide solutions to minimize the business impact due to outage
- Continuously improve performance metrics of modules you own.
- Actively mentor and develop junior developers in all software development practices
- Participate in the hiring process (referrals, interviews, attending recruiting events or writing blogs)
- Onboard and mentors new team members, helps shape the culture of the team

This leads to a very interesting and challenging use case in the emerging field of large scale distributed HTAP, which is still not mature enough to provide a solution out of the box that works for our scale and SLAs. So, we are building a solution that can handle the complexity of our use case and scale to several trillions of rows. As a "Database Engineer", you will evolve, architect, build and scale the core data warehouse that sits at the heart of Clarisights enabling large scale distributed, interactive analytics on near realtime data.
What you'll do
- Understanding and gaining expertise in existing data warehouse.
- Use the above knowledge to identify gaps in the current system and formulate strategies around what can be done to fill them
- Avail KPIs around the data warehouse.
- Find solutions to evolve and scale the data warehouse. This will involve a lot of technical research, benchmarking and testing of existing and candidate replacement systems.
- Bulid from scratch all or parts of the data warehouse to improve the KPIs.
- Ensure the SLAs and SLOs of data warehouse, which will require assuming ownership and being oncall for the same.
- Gain deep understanding into Linux and understand concepts that drive performance characteristics like IO scheduling, paging, processing scheduling, CPU instruction pipelining etc.
- Adopt/build tooling and tune the systems to extract maximum performance out of the underlying hardware.
- Build wrappers/microservices for improving visibility, control, adoption and ease of use for the data warehouse.
- Build tooling and automation for monitoring, debugging and deployment of the warehouse.
- Contribute to open source database technologies that are used at or are potential candidates for use.
What you bring
We are looking for engineers with a strong passion for solving challenging engineering problems and a burning desire to learn and grow in a fast growing startup. This is not an easy gig, it will require strong technical chops and an insatiable curiosity to make things better. We need passionate and mature engineers who can do wonders with some mentoring and don't need to be managed.
- Distributed systems: You have a good understanding of general patterns of scaling and fault-tolerance in large scale distributed systems.
- Databases: You have a good understanding of database concepts like query optimization, indexing, transactions, sharding, replication etc.
- Data pipelines: You have a working knowledge of distributed data processing systems.
- Engineer at heart: You thrive on writing great code and have a strong appreciation for modular, testable and maintainable code, and make sure to document it. You have the ability to take new initiatives and questioning status quo.
- Passion & Drive to learn and excel: You believe in our vision. You drive the product for the better, always looking to improve things, and soon become the go-to person to talk to on something that you mastered along. You love dabbling in your own side-projects and learning new skills that are not necessarily part of your normal day job.
- Inquisitiveness: You are curious to know how different modules on our platform work. You are not afraid to venture into unknown territories of code. You ask questions.
- Ownership: You are your own manager. You have the ability to implement engineering tasks on your own without a need for micro-management and take responsibility for any task that has been assigned to you.
- Teamwork: You should be helpful and work well with teams. You’re probably someone who enjoys sharing knowledge with team-mates, asking for help when they need it.
- Open Source Contribution: Bonus.









