
Key Responsibilities
• Design, develop, test, and deploy scalable Java applications.
• Collaborate with cross-functional teams to define, design, and deliver new
features.
• Solve complex technical problems with innovative, simple solutions.
• Write clean, efficient, and well-documented code.
• Participate in code reviews to maintain code quality.
• Continuously discover, evaluate, and implement new technologies to maximize
development efficiency.
• Exhibit ownership and responsibility for assigned deliverables.
Qualifications and Required Skills
• 3 to 6 years of hands-on Java development experience.
• Strong experience in building products or applications from scratch (not just
maintenance/support).
• Good understanding of object-oriented programming principles.
• Experience with frameworks like Spring, Spring Boot, Hibernate, etc.
• Strong knowledge of data structures, algorithms, and design patterns.
• Should have strong problem-solving abilities.
• Familiarity with RESTful APIs and microservices architecture is a plus.
• Solid understanding of database technologies (SQL, NoSQL).
• Exposure to cloud platforms (AWS, Azure, or GCP) will be an advantage.
• Strong debugging and troubleshooting skills

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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Job Title: Tech Architect - Java Spring Boot
Company Name: Chella Software Private Limited
Company Website
Company details
THE PARTNER OF CHOICE FOR FINANCIAL MARKETS
Our deep domain experience, ultra-high-performance software solutions, and on-time project delivery make us the preferred partner for the financial markets.
Over the last two decades, Chella Software has built deep domain experience in the financial markets and a capability for developing ultra-high-performance software that can handle very high volumes of data with the lowest levels of latency.
We are now preferred partners for a host of Central Banks, Stock Exchanges, Clearing Corporations, Brokerages, and Institutional Investors across 12 countries.
We are a global provider of fintech solutions for central banks, exchanges, central counter parties, and financial market intermediaries. We meet the software needs of customers in India, the Middle East, Africa, Singapore, and the USA.
Central Banks:
- Our portfolio of solutions for central banks includes:
- Chella Switch, a national payment and settlement system designed for central banks in frontier markets, and
- Chella Horizen, a robust, reliable and full coverage investment management and accounting platform for reserve management.
Exchanges and CCPs:
We are at the forefront of providing customized solutions for exchanges, CCPs, depositories, and other financial market infrastructure. Our high-speed, low-latency, high-volume, massively scalable systems are spread across the core areas of trading, surveillance, risk management, clearing, settlement, and compliance.
Our teams have deep expertise in:
- Developing and implementing bespoke solutions on a build-operate-maintain model.
- Re-architecting and re-engineering core applications to address performance and scalability challenges.
- Migrating legacy systems to the latest technologies without disrupting operations.
- Defining and building digital experiences and journeys that facilitatethe addition of new investors to the market.
Brokerages:
Our solutions for brokerages include:
- Chella Trader, a multi-asset, multi-exchange, multi-currency, omni-channel order management system, and
- Chella Clearvision is a modular broker back office that helps scale a broker’s business with incremental investments.
Institutional Investors:
We meet the investment management needs of institutional investors through Chella IMS, a full coverage post-trade investment management and IFRS-compliant accounting platform for pension funds, insurance firms, and family offices.
Location: Madurai - Tamil Nadu
Mode of Working: Work Form Office (Interview shall be face to face at Madurai)
Days of Working: 5 Days a week
Responsibilities
Job Description:
- Tech Architect with expertise in Java Spring Boot to design and implement robust, scalable, and high-performance backend systems. As a Tech Architect, you will be responsible for shaping the technical direction of complex software projects and providing architectural guidance to engineering teams.
- This role requires deep technical knowledge, leadership skills, and the ability to collaborate with various stakeholders to ensure the successful delivery of solutions that meet business and technical requirements. Experience in the Fintech domain is an added advantage.
Key Responsibilities:
- Architectural Design & Strategy:
- Lead the architectural design and implementation of scalable, maintainable, and secure backend systems using Java, Spring Boot, and microservices architecture.
- Define best practices for code quality, testing, security, and deployment processes. Drive the adoption of modern development methodologies (Agile, DevOps) and frameworks.
- Technical Leadership:
- Provide mentorship and technical guidance to developers and engineers on coding standards, design patterns, and technologies.
- Ensure the architecture is aligned with business goals and technical constraints. Conduct code reviews and enforce best practices to maintain high-quality standards.
- Collaboration:
- Work closely with Product Managers, Business Analysts, and other stakeholders to gather requirements and translate them into technical solutions.
- Collaborate with cross-functional teams to define system requirements, integrate with third-party services, and ensure the overall system design is cohesive.
- Problem Solving:
- Analyze and resolve complex technical challenges, such as performance bottlenecks, scalability issues, and system integrations.
- Evaluate and implement new technologies, tools, and frameworks to continually improve the development process.
- Documentation & Reporting:
- Document architectural designs, technical specifications, and implementation guides.
- Provide regular updates on project progress, risks, and technical challenges to senior leadership.
- Continuous Improvement:
- Stay up to date with emerging technologies, industry trends, and best practices.
- Recommend improvements to system architecture, processes, and technologies to enhance the software development lifecycle.
Interview process: Virtual and Face-to-Face
Skills:
Experience: 9-12 Years
Location: Madurai
Job Type: Full-time
Education: B.E(Any stream)/ B.Tech / M.E / M.Tech. or similar
Skills: Java, Spring Boot, and microservices architecture.
Why Join Us?
- Opportunity to work on cutting-edge solutions for capital markets.
- This is a global role and, hence, will provide opportunities to work with organizations across the globe.
- Learn from experienced professionals and grow into a solution architect, product manager or sales role.
- Opportunity for rapid personal and professional growth.
ATGS official Email
anita at atgs.co.in
Design software, write code, write unit test cases, test code and review code on a daily basis
Tactical contributions to the low-level implementation
Create/enhance scalable, high performance and fault-tolerant architectures
Develop complex and distributed software modules using Java/JEE, Streaming, and Big Data technologies
Identify the performance and scalability bottlenecks and provide solutions to resolve
Write software to develop products on a daily basis
Write unit test cases and schedule/execute them
Provide estimation during grooming and sprint planning
Skills:
Excellent communication skills, verbal and written; ability to communicate with technical team and clients
Experience working in an Agile environment
Excellent analytical skills, ability to think abstractly and solve complex problems
Expertise in common object-oriented and enterprise design patterns
Technology agnostic
Hands-on experience on frameworks like Spring MVC, Spring Boot, Hibernate, JPA, OGM
Hands-on experience with relational databases (like Postgres, MySQL, Oracle)
Experience with Elasticsearch is a must
Ability to learn new frameworks and design patterns is a must
Ability to translate ideas into designs and proof of concepts is a must
Experience in SAAS, PAAS and cloud platforms such as Azure/AWS/Google Cloud Platform
Knowledge of product architecture and ability to suggest the latest architectural components
Knowledge of exposing and scaling microservices
Experience working in Linux or OS X command line environments
Experience working with Git, or other SCM tool
Knowledge of Java/JEE technology stack for M2M Applications and Support Platforms.
Should be conversant with state of the art technologies in this space and possess the ability to translate
(optional)
- You have experience with two or more development languages preferably Java or Python and React, etc
- You can skillfully write high-quality, well-tested code and you are comfortable with Object-Oriented programming
- Comfortability with Agile methods, such as Extreme Programming (XP), Scrum and/or Kanban
- Bonus points if you have working knowledge of cloud technology such as AWS, Azure, Kubernetes and Docker
7+ years of experience with Design, development & architecture.
- Experience in software development with minimum 3 plus years of architecture experience.
- Experience in Core JAVA 8
- Experience in Java J2EE, Microservices
- Experience in Java - Spring, Java - SpringBoot, GCP , Hibernate,JDBC
- Experience in Multi-threading, Performance and Scaling is a plus
- Have used the RDBMS and NoSQL databases like MySQL/Oracle, MongoDB, Cassandra, Neo4J Risk for production ready software’s
- Cloud Native application design experience is a plus
- CICD – Release Pipeline experience
- Experience in application of principles of Architecture Design
- Experience building large scale, high performance distributed systems
- Strong understanding of modern development techniques and processes such as Dev Ops /Cloud
- Promoter of Agile/Scrum, TDD and CI/CD best practices
- Analyzes, designs, programs, debugs and modifies software enhancements and/or new products used in local, networked or Internet-related computer programs. (Code must be used in core version of applications available for sale commercially.)
- Interacts with Delivery managers and/or users to define system requirements and/or necessary modifications.
- Participates in software design meetings and analyzes user needs to determine technical requirements.
- Write technical specifications based on conceptual design and stated business requirements.
- Writes code, completes programming and performs testing and debugging of applications using current programming languages and technologies.
- Completes documentation and procedures for installation and maintenance.
- Trains and communicates with internal Client Training, Client Relationship and Sales teams on systems application.
- May be responsible for developing or executing project plans, budgets and schedules and for documenting work and results.
- May deliver informational and decision-seeking presentations to technical and business groups to internal and/or external audiences.
Location: Chennai
1 .Net Core, Dotnet
4+ years of hands-on experience
Must-Have:-
> .Net, ASP.NET
> Must have good knowledge of multi-threading concepts
> Development experience nee in Visual studio 2019
> Systems thinking, technical acumen, an alytical skills, and communication skills.
> Testing skills (Unit testing, Integration testing.
> Exposure to AGILE development methodologies
> Quality mindset and attention to detail in all aspects of software engineering and development
JD for Java Developer Position (3-5 years)
Notice Period: 10-20 days or within 1 month
1. Excellent Java skills
2. Hands-on working experience with Spring, Hibernate, GIT, Jenkins
3. Strictly adhere to coding standards & unit testing
4. Excellent analytical skills and communication skills are a must
5. Knowledge of MySQL or any other DBMS
Added Advantage
1. ElasticSearch
2. AWS services like lambda, redis, graphql etc
3. Docker
Someone from the product based/Fintech
Immediate Joining or Notice Upto 30 Days
WFH
Roles & Responsibilities:
● Invent, design and build software that is stable and performant
● Primary role will be quality and timely delivery of the application/ feature/ module your team
will be working on
● Adopt and execute good design philosophy and code writing practices
● Ensure the code goes through rigorous tests and quality checks before deployment
● Work with other software engineers and database engineers to set excellent development
practices and deliver innovative changes in new and existing products
● Be hands-on technical, thus, leading by example using web, mobile and database
technologies
● Work on project ideas with customers, stakeholders and peers
● Be actively involved in code review process, design discussions, team planning
Minimum Qualifications:
● Bachelor's degree in Computer Science, Software Engineering, or a related technical
discipline
● 3-6 Years of Experience
● Expertise in software design and development
● Proficiency with at least one Object Oriented language (e.g. Java)
● Have knowledge about Computer Science fundamentals in object-oriented design, data
structures, algorithm design, problem-solving, and complexity analysis
● A strong track record of project delivery for large, cross-functional projects
● Experience with building high-performance, highly available and scalable distributed systems
● Experience with API Design, ability to architect and implement an intuitive customer and
third-party integration story
● Ability to think and analyse both breadthwise (client, server, DB, control flow) and depth-wise
(threads, sessions, space-time complexity) while designing and implementing services
- 4+ years of professional development experience in an agile software engineering role
- Strong development skills in Java or Groovy
- Experience with Jenkins, bamboo and CI/CD environments
- Familiarity with Guice or similar dependency injection frameworks
- Familiarity with relational database technology
- Familiarity with document store database technology such as ElasticSearch or Cassandra
- Experience with design and testing of RESTful APIs
- Familiarity with cross platform development on Linux, OSX and Windows
- Strong understanding of Git version control system
- Knowledge of JavaScript (Node.js)
- Familiarity with Amazon Web Services (AWS)
- Familiarity with Docker / Kubernetes
- Experience with continuous integration and build systems such as Jenkins or Bamboo
- Experience with Jira or other project management, issue-tracking or bug-tracking tools
- Should have knowledge of RDBMS
- Familiarity with Node.js, Kotlin, Kafka, DynamoDB
- Previous experience with SaaS or cloud development, Micro-services
Location: Hyderabad, India
Nisum is a leading global digital commerce firm headquartered in California, with services spanning digital strategy and transformation, insights and analytics, blockchain, business agility, and custom software development. Founded in 2000 with the customer-centric motto “Building Success Together®,” Nisum has grown to over 1,400 professionals across the United States, Chile, India, and Pakistan. A preferred advisor to leading Fortune 500 brands, Nisum enables clients to achieve direct business growth by building the advanced technology they need to reach end customers in today’s world, with immersive and seamless experiences across digital and physical channels.
What You’ll Do
Coding in Java8, Spring, Microservices, WebFlux/Reactive Programing, Rest services, Kafka, PCF, Azure, Spring Cloud Config and NoSQL technologies.
Solve technical problems using cutting-edge technologies and best practices.
Ensure code meets the required development standards and is optimized for performance.
Unit testing for each line of new code introduced (JUnit/Mockito)
Peer code review process using GIT pull requests and Crucible (for SVN)
Propose multiple solutions to a problem, show how one option is better than another.
Ensure all aspects of technical design are correctly incorporated.
Contribute in research and implementing POC’s as required.
Collaborating with onsite team in scrum ceremonies.
Who you are
Senior developer using technical skills in Java8, J2EE, Spring boot(rest services), Web Services(Rest & SOAP), WebFlux, Spring Cloud Config, Maven/Gradle, JUNIT/TestNG, Mockito/JMock/EasyMock, JIRA, XML, JSON, EhCache/MemCache/Redis with skills in JMS, Kafka
Experience with hands on any one of the cloud platforms like PCF, Azure
Need hands on skills using NoSQL databases (Cassandra, MongoDB), SQL(Oracle/DB2/MySQL)
Experience with UI development skills to the level of debugging and enhancements.
Experience with expertise in code quality and coding standards.
Need to applying different design patterns, especially GoF, J2EE and Integration design patterns.
Making sure implementing unit testing for each line of new code introduced (JUnit/Mockito).
Ensuring the code meets the required development standards and is optimized for performance.
Education
Bachelor’s / Master’s degree in specific technical fields like computer science, math, statistics preferred; or equivalent practical experience.









