
JOB DESCRIPTION:
- Design, develop, and maintain low-latency, high-performance enterprise applications using Core Java (Java 5.0 and above).
- Implement and integrate APIs using Spring Framework and Apache CXF.
- Build microservices-based architecture for scalable and distributed systems.
- Collaborate with cross-functional teams for high/low-level design, development, and deployment of software solutions.
- Optimize performance through efficient multithreading, memory management, and algorithm design.
- Ensure best coding practices, conduct code reviews, and perform unit/integration testing.
- Work with RDBMS (preferably Sybase) for backend data integration.
- Analyze complex business problems and deliver innovative technology solutions in the financial/trading domain.
- Work in Unix/Linux environments for deployment and troubleshooting.
Required Skills & Experience:
- 4– 12 years of strong hands-on experience in Core Java.
- Deep understanding of Object-Oriented Programming (OOP), data structures, algorithms, and design patterns.
- Proven experience with Spring, CXF, and REST/SOAP web services.
- Solid understanding of microservices architecture and distributed systems.
- Experience working with Sybase or other relational databases.
- Expertise in multithreading, concurrency, and high-throughput server-side development.
- Exposure to capital markets, sales & trading platforms, or similar financial services applications.
- Good working knowledge of Unix/Linux environments.
- Experience in solution architecture and design documentation is a strong plus.
- Strong problem-solving skills, analytical thinking, and a proactive attitude.
- Excellent communication and interpersonal skills to work effectively with global teams.
Preferred Qualifications:
- Bachelor’s or Master’s degree in Computer Science, Engineering, or related field.
- Previous experience in investment banking, capital markets, or financial technology domains.
Why Join Wissen Technology?
- Be a part of a high-growth organization that has expanded 400% in the last five years.
- Work alongside leadership and engineers from IITs, IIMs, MIT, Wharton, and other top institutions.
- Engage with Fortune 500 clients and deliver high-impact projects.
- Certified as a Great Place to Work®.
- Recognized as a Top 20 AI/ML Vendor by CIO Insider (2020).
- Work on next-gen technologies: AI/ML, Big Data, Cloud, DevOps, RPA, and more.
- Global presence across US, India, UK, Australia, Mexico, and Canada.
Website : www.wissen.com

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
Similar jobs
About RapidClaims
RapidClaims is a leader in AI-driven revenue cycle management, transforming medical
coding and revenue operations with cutting-edge technology.
The company has raised $11 million in total funding from top investors, including Accel
and Together Fund.
Join us as we scale a cloud-native platform that runs transformer-based Large Language
Models rigorously fine-tuned on millions of clinical notes and claims every month. You’ll
engineer autonomous coding pipelines that parse ICD-10-CM, CPT® and HCPCS at
lightning speed, deliver reimbursement insights with sub-second latency and >99 %
accuracy, and tackle the deep-domain challenges that make clinical AI one of the
hardest—and most rewarding—problems in tech.
Engineering Manager- Job Overview
We are looking for an Engineering Manager who can lead a team of engineers while
staying deeply involved in technical decisions. This role requires a strong mix of people
leadership, system design expertise, and execution focus to deliver high-quality product
features at speed. You will work closely with Product and Leadership to translate
requirements into scalable technical solutions and build a high-performance engineering
culture.
Key Responsibilities:
● Lead, mentor, and grow a team of software engineers
● Drive end-to-end ownership of product features from design to deployment
● Work closely with Product to translate requirements into technical solutions
● Define architecture and ensure scalability, reliability, and performance
● Establish engineering best practices, code quality, and review standards
● Improve development velocity, sprint planning, and execution discipline
● Hire strong engineering talent and build a solid team
● Create a culture of accountability, ownership, and problem-solving
● Ensure timely releases without compromising quality
● Stay hands-on with critical technical decisions and reviews
.
Requirements:
● 5+ years of software engineering experience, with 2+ years in team leadership
● Strong experience in building and scaling backend systems and APIs
● Experience working in a product/startup environment
● Good understanding of system design, architecture, and databases
● Ability to manage engineers while remaining technically credible
● Strong problem-solving and decision-making skills
● Experience working closely with Product teams
● High ownership mindset and bias for action
Good to Have
● Experience in healthcare tech / automation / RPA / AI tools
● Experience building internal tools and workflow systems
● Exposure to cloud infrastructure (AWS/GCP/Azure)
- Experience in Core Java 5.0 and above, CXF, Spring.
- Extensive experience in developing enterprise-scale n-tier applications for 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 Experience into Microservices , Data structures , Oops , Algorithms, multithreading etc
- 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.
- Experience into High /Low level designing.
- 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.
Architect, develop and maintain highly scalable, reliable and secure distributed backend
systems on Cloud (AWS or Azure) or on-premises environments for Mihup, its customers
and partners.
Work closely with your fellow engineers to develop systems capable of concurrently
processing massive amounts of voice data both in online real-time as well as offline
environments.
Drive accountability for test driven development, delivery of high-quality features and
resilient enterprise class solutions.
Lead a culture of team ownership and direct individual and team accountability to
continuously improve how they work to achieve results.
Work in a startup environment, pushing boundaries with deep involvement with business.
BE//BTech/ME/MTech in Computer Science or a related field from a Tier I or Tier II
University.
6-8 years of hands-on software development and deployment experience (experience of
working in a consumer product startup during its growth phase will be a plus) of which 1 – 2
years of experience would be in leading a team of software developers.
Expertise in Java 8+ and Spring Boot is a must
Good experience in messaging platforms like RabbitMQ/Kafka
Good experience in distributed systems and relational & NoSQL databases like PostgreSQL,
MySQL, Redis, MongoDB, etc.
Expertise in one or more of: Python, NodeJS, GoLang would be preferred
Must have hands on experience in products which handle multiple concurrent calls (API),
handle CPU intensive jobs, consist of multiple asynchronous system calls.
Worked on microservices based architecture and design
Managed/ Owned infrastructure on AWS/Microsoft Azure/private clouds and setup high
availability systems
Knowledge of Docker and Kubernetes
Knowledge of RESTful APIs, caching concepts, the HTTP protocol and general web
architecture
Pluses
1. Anything that will let us know more about who you are that you would like to share such as
Blogs, Twitter, Medium, GitHub etc.
Key Responsibilities:
- Lead and manage a team of Java developers, providing guidance and support
- Oversee the entire software development lifecycle, from requirements gathering to deployment
- Design, develop, and implement Java-based solutions that meet project requirements
- Collaborate with cross-functional teams to ensure project milestones are achieved
- Conduct code reviews, provide technical guidance, and ensure code quality and best practices
Requirements:
- Minimum 4 years of experience in Java development
- Strong knowledge of Java frameworks and technologies (Spring, Hibernate, etc.)
- Experience in leading and mentoring a team of developers
- Excellent problem-solving and analytical skills
- Good understanding of software development methodologies and processes
Job Title: Java Team Lead
Experience: 4.5 to 8 years
Notice Period: Up to 30days (Negotiable)
Job Description :
- Experience in Java/J2EE technologies - design development of high-volume, high-performance, high-availability, service-oriented applications
- Design and govern the reusable accelerators, design patterns and reusable technical components (e.g. error handling, logging etc.)
- Strong knowledge in developing scalable web applications using Spring Boot with JDBC, JPA, Security, RESTful Web Services
- Experience in front end development using HTML5, JQuery, React JS or Angular
- Research and implement new tools, frameworks and patterns to build a hybrid cloud applications
- Strong knowledge in Database – MySQL / PostgreSQL
- Knowledge of deploying applications in Ubuntu on Cloud Infrastructure
- Knowledge of Docker and Kubernetes for automatic application deployment will be an added advantage
- Lead a team and provide technical knowledge to team members during development
Roles & Responsibilities
- Understand the Requirement
- Convert them into Document
- Deliver the Work Product (software components / modules) with Quality
- High level design & Defining Architecture
- Following Coding best practices
Java Developer
Requirements:
1. Good knowledge and hands on experience in Java development with.
2. Good knowledge of Java and J2EE internals (Multi threading, Memory Management, Transaction
management etc.)
3. Good knowledge of Relational Databases, SQL and ORM technologies (JPA2, Hibernate)
4. Working experience in developing web applications using Spring MVC or Spring Boot.
5. Analytical mindset and good problem-solving skills is a must.
6. Able to write well-structured, testable, efficient code.
Job Description
We are looking for a passionate and motivated java backend developer to engineer low latency
applications for mission-critical systems, delivering high-availability and performance. You will be
contributing in all phases of the development lifecycle, and will be working closely with a cross-functional
team to create highly scalable products.
Salary: As per Industry Standards
Industry: IT-Software / Software Services
Functional Area: IT Software - eCommerce, Internet Technologies
Role Category:
Role: Backend Engineer
Designation - Senior Java Developer
Experience - 4+ Years required
-Proven working experience in Java Spring Boot framework
-Proven working experience in Java development
-Proven hands-on Software Development experience
-Experience in Spring boot micro services
-Experience working with tools like Git, Maven,SVN.
-Expertise developing enterprise-level web applications and RESTful APIs using Spring boot, with demonstrable production-scale experience.
- Working experience in Industry Standard protocols related API Security including OAuth is a must.
- Demonstrate strong design and programming skills using JSON, Web Services.
- Working knowledge with SQL Server databases.
- Passion to stay on top of the latest happenings in the tech world and an attitude to discuss and bring those into play.
- Strong agile/scrum development experience
- Strong collaboration and communication skills within distributed project teams
- Excellent written and verbal communication skills
Skill Required – Core Java, Java 8 Feature, Spring Core, Spring boot , Spring Data JPA, Hibernate..Etc
Job Summary
Require a java developer having 2+ years of experience especially in Spring and Hibernate
Job Type: Full-time
Responsibilities and Duties
Java developer responsibilities include designing and developing high-volume, low-latency applications for mission-critical systems and delivering high-availability and performance
- Contribute in all phases of the development lifecycle
- Write well designed, testable, efficient code
- Ensure designs are in compliance with specifications
- Prepare and produce releases of software components
- Support continuous improvement by investigating alternatives and technologies and presenting these for architectural review
Key Skills
JEE, JPA2 , Hibernate
Required Experience and Qualifications
Proven hands-on Software Development experience
- Proven working experience in Java development
- Hands on experience in designing and developing applications using Java EE platforms
- Object Oriented analysis and design using common design patterns.
- Profound insight of Java and JEE internals (Classloading, Memory Management, Transaction management etc)
- Excellent knowledge of Relational Databases, SQL and ORM technologies (JPA2, Hibernate)
- Experience in the Spring Framework
- Experience in developing web applications using at least one popular web framework (JSF, Wicket, GWT, Spring MVC)
- Experience with test-driven development
Job Type: Full-time

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.
Job Description :
Hiring for Staff Engineer (Back end) for a leading product based company at DLF IT Park, Chennai.
Skill Set :
- Strong Experience in any Programming language (Ruby, Go, Java, or other high-performance languages), Architecture, Design (HLD/LLD), Data structures, Algorithms, Hands-on Coding, Problem Solving, etc
- Experience in Web Technology is Must.
- Looking for candidates with good experience in product development.
- Candidates from product development companies will be preferred.
- Candidates willing to relocate/preferring Chennai can apply.
Responsibilities :
- Analyze and drive product requirements
- Architect and design product features for scale and maintainability
- Lead in the design, implementation, and deployment of successful systems and services
- Ensure the quality of architecture and design of systems
- Implement code with very high coverage of unit tests and component tests
- Perform design and code reviews
- Functionally decompose complex problems into simple, straight-forward solutions
- Fully and completely understand system interdependencies and limitations
- Possess expert knowledge in performance, security, scalability, architecture, and best practices
- Software development of high quality/availability core systems
- Cross-training peers and mentoring teammates
- Document HLD/LLD for easy knowledge sharing and future scaling
Must have :
- 8-12 years of experience designing, integrating and developing distributed applications in Ruby, Go, Java, or other high-performance languages
- Experience with cluster and container orchestration systems such as Docker, Mesos, Marathon, Salt or Kubernetes.
- Experience with Service design, systems engineering, API Design and versioning
- Understanding of Design Patterns, Serverless computing, cloud-first architecture, TDD, BDD, CI/CD, Integration Patterns
Good to have :
- Experience building distributed systems using Kafka. Strong grasp of fundamental concepts of Kafka, ZooKeeper and building producer and consumer applications using Kafka
- Familiarity writing and optimizing advanced SQL queries
- Good Linux/UNIX systems knowledge
- AWS compute and storage PaaS services. AWS certified solutions architect nice to have.
- Experience productionizing Machine Learning models
- Experience publishing technical papers in reputed conferences.






