
JOB DESCRIPTION:
Location: mumbai
Mode of Work : 3 days from Office
DSA(Collections, Hash maps, trees, Linkedlist and Arrays, etc), Core Oops concepts(Multithreading, Multi Processing, Polymorphism, Inheritance etc) Annotations in Spring and Spring boot, Java 8 Vital features, database Optimization, Microsevices and Rest API
- 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:
- 3– 7 years of strong hands-on experience in Core Java, Spring boot, microservices, data structures.
- 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.

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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Job Description:
- He / She candidate must possess a strong technology background with advanced knowledge of Java and Python based technology stack.
- Java, JEE, Spring MVC, Python, JPA, Spring Boot, REST API, Database, Playwright, CI/CD pipelines
- * At least 3 years of Hand-on Java EE and Core Java experience with strong leadership qualities.
- * Experience with Web Service development, REST and Services Oriented Architecture.
- * Expertise in Object Oriented Design, Design patterns, Architecture and Application Integration.
- * Working knowledge of Databases including Design, SOL proficiency.
- * Strong experience with frameworks used for development and automated testing like SpringBoot, Junit, BDD etc.
- * Experience with Unix/Linux Operating System and Basic Linux Commands.
- * Strong development skills with ability to understand technical design and translate the same into workable solution.
- * Basic knowledge of Python and Hand-on experience on Python scripting
- * Build, deploy, and monitor applications using CI/CD pipelines, * Experience with agile development methodology.
- Good to Have - Elastic Index Database, MongoDB. - No SQL Database Docker Deployments, Cloud Deployments Any Al ML. snowflake Experience
- You will be participating in feature solutioning discussions and finalizing an approach aligned with requirements.
- Preparing HLD and LLD. Making reviews of design documents
- Exploring technology and hacking way through the specific problem to accomplish desired results.
- Owning a module and delivering it end to end.
- Working in a team and at times showing leadership by taking initiatives and guiding other
- You should have evaluated new technologies and introduced relevant as and when required.
- You should have built multiple systems ground up and maintained them working.
- You should have exposed to debugging client-side production setup under crisis.
- Build applications to solve business problems in healthcare using Machine Learning techniques and software technologies
- Designing and developing machine learning models
- Running machine learning tests and experiments
- Work with the product and operations team to understand the business
requirements
- Create epics and user stories from requirements
- Prioritize the work based on the changing client requirements
Skills and Specifications:
Required Skills
- Experience in coding with Java
- Experience in working with Spring Framework
- Experience with basic API protocols
- Experience with developing, debugging and dev testing
- Decent communication skills
Nice to have
- Experience with distributed storage & Database Systems (SQL or
NoSQL, eg MySQL or MongoDB)
- Experience with production quality management, deployment &
monitoring.
- Experience with Tomcat, Nginx & Linux.
- Experience with Cloud Technologies (AWS, Azure, Oracle Cloud
etc)
- Product understanding skills.
- 5+ Years Java/JEE development experience in an enterprise.
- 3+ Experience in #Grails Web Framework and #Groovy Language.
- Must have experience integrating Grails code with front-end JavaScript frameworks including Jquery.
- Must have experience working with XML and JSON using Grails, JMS and Web, services, XML, Apache Tomcat, SQL and Unix and GIT.
- Experience with RDMS concepts and SQL.
- Experience with RESTful Web Services.
- Understanding of proper application design techniques and methodologies.
- Proficient understanding of SDLC processes desired – Agile
- 2+ year of experience in Development in JAVA technology.
- Strong Java Basics
- SpringBoot or Spring MVC
- Hands on experience on Relationl Databases (SQL query or Hibernate) + Mongo (JSON parsing)
- Proficient in REST API development
- Messaging Queue (RabitMQ or Kafka)
- Microservices
- Any Caching Mechanism
- Good at problem solving
- 4+ years of experience in using Java/J2EE tech stacks
- Good understanding of data structures and algorithms.
- Excellent analytical and problem solving skills.
- Ability to work in a fast paced internet start-up environment.
- Experience in technical mentorship/coaching is highly desirable.
- Understanding of AI/ML algorithms is a plus.
Sr. Software Developer
Work Experience: 8+ Years
The Number of Vacancies: 2
Location:
CTC: As per industry standards
About the Job Description
Senior software developers are responsible for designing, testing, and implementing new and updated software programs. They take on a managerial role and lead the development team with all software development tasks. Their job is to ensure all projects are completed on time and to company specifications.
What We Are Seeking
- Hands-on experience in Core Java and Advanced Java.
- Hands-on Java Framework-Architecture and Advanced Concepts Understanding and Implementation in Real-Time Projects
- Knowledge of Weblogic, Microservices
- Experience in developing APIs and RESTful services using Node JS.
- Strong understanding of the usage and implementation of JWT tokens and access control API development.
- Knowledge of AWS, SSL integration, Docker, Postman
- Extensive knowledge of MongoDB, MySQL, Redis, and Oracle.
- Understanding of how to integrate third-party APIs such as Payment Gateway
- Knowledge of code versioning tools such as GIT
- Must have good analytical, debugging, and problem-solving skills.
- Good communication skills.
Responsibilities
- Produce high-quality code and experience with security implementations.
- Collaborating with front-end developers on the integration of elements.
- Running diagnostic tests, repairing defects, and providing technical support.
- Documenting Node.js processes, including database schemas, as well as preparing reports.
- Work with the QA Team to develop testing protocols to identify and correct challenges.
• Experience in the financial domain preferred.
• Hands-on developer in Core Java with an excellent understanding of computer science fundamentals, data structures, algorithms and design patterns.
• Experience with frameworks like Spring, Restful Webservices, Queuing systems, Angular, and Python is highly desired.
• Deep understanding of several cloud providers such as AWS, Azure, Google etc.
• Hands-on experience developing CI/CD pipelines for continuous development and integration.
• Deep knowledge and experience of Java/J2EE and servers like Tomcat.
About Recko:
Recko was founded in 2017 to organise the world’s transactional information and provide intelligent applications to finance and product teams to make sense of the vast amount of data available. With the proliferation of digital transactions over the past two decades, Enterprises, Banks and Financial institutions are finding it difficult to keep a track on the money flowing across their systems. We are building products which enable them to handle and monitor massive volumes of transactional data without writing a single line of code and ensure the right amounts are flowing between the right beneficiaries, with the right deductions at the right time. Over the last few months, we have grown to a point where we are processing more than 25 million transactions monthly for our customers.
Recko is a Series A funded startup, backed by marquee investors like Vertex Ventures, Prime Venture Partners and Locus Ventures. Traditionally enterprise software is always built around functionality. We are reimagining enterprise software to be built around the user. We believe software is an extension of one’s capability, and it should be delightful and fun to use.
Working at Recko:
We believe that great companies are built by amazing people. At Recko, We are a group of young Engineers, Product Managers, Analysts and Business folks who are on a mission to bring consumer tech DNA to enterprise fintech applications. The current team at Recko is 50 members strong with stellar experience across fintech, e-commerce, digital domains at companies like Flipkart, PhonePe, Ola Money, Belong, Razorpay, Grofers, Jio, Oracle etc. We are growing aggressively across verticals.
About the Role:
What are we looking for:
1. 2+ years of experience with Java MVC frameworks like Spring / Dropwizard / Play and with
MySQL / Oracle / PostgreSQL.
2. Experience building at least one application from scratch.
3. Understanding of at least one test frameworks and basic system administration.
4. Experience with cache store / message broker like Redis / RabbitMQ / Kafka.
5. Good to have: Experience with NoSQL databases like Cassandra, MongoDb, Neo4j, ElasticSearch. etc and Understanding of different concurrency models used in Akka, node.js, Go, RxJava etc
6. Interest in learning new languages / framework as needed.
7. A growth mindset and passionate about building things from the ground up and most
importantly, you should be fun to work with.
As a backend developer at Recko, you will:
1. Design and implement microservices with high reliability and scalability.
2. Be involved and participate in the overall application lifecycle.
3. Define and communicate technical and design requirements.
4. Learn about new technologies and incorporate them.
5. Improve engineering standards, tooling, and processes.
6. Collaborate with multi-disciplinary team of designers, developers and system administrators.









