Backend Engineer

Company: Wissen Technology

JOB DESCRIPTION

Experience: 5 to 10 years

Location: Bengaluru

Wissen Technology is now hiring for a Senior Java Developer - Bangalore 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. - 5-10 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.

Job Title: Java Engineering Manager/Lead

Experience range:- 10 + Years

Location:- Pune / Mumbai

Knowledge and Skills:

• Strong proficiency in Core Java, Spring Boot.
• Experience with RESTful APIs, microservices, and multithreading.
• Solid understanding of RDBMS (MySQL/PostgreSQL).
• Exposure to cloud platforms (AWS, GCP, or Azure) and containerization (Docker, Kubernetes).
• Familiarity with CI/CD tools like Jenkins, GitLab, or GitHub Actions.
• Background in Fintech, particularly Digital Lending, Supply Chain Finance, or Banking products.
• Experience working in agile/scrum environments.
• At least 3 years of experience leading/managing a team of Java developers.

Key Responsibilities:

• Lead and mentor a team of Java developers, ensuring technical excellence and timely delivery.
• Actively participate in coding, code reviews, architecture decisions, and system design.
• Collaborate with cross-functional teams including Product Managers, QA, and DevOps.
• Maintain a strong hands-on presence in backend Java development and microservices architecture.
• Own the end-to-end lifecycle of features from requirement to deployment and post-release support

• Experience in Spring Boot, Jenkins, Git, Hibernate, Kubernetes, and Docker
•  Experience in the development of scalable and extensible systems using Java
•  Proficiency in Database technology such as MySQL, Oracle, and MongoDB
• Routines Sync & Async
• Solid and fluent understanding of algorithms and data structures
• Excellent software design, problem-solving and debugging skills
• Demonstrated high ownership in previous projects
• Excellent Communication Skills"

Job Summary:

We are seeking a skilled and experienced Java Developer with hands-on expertise in AWS, Spring Boot, and Microservices architecture. As a core member of our backend development team, you will design and build scalable cloud-native applications that support high-performance systems and business logic.

Key Responsibilities:

• Design, develop, and maintain backend services using Java (Spring Boot).
• Build and deploy microservices-based architectures hosted on AWS.
• Collaborate with DevOps and architecture teams to ensure scalable and secure cloud solutions.
• Write clean, efficient, and well-documented code.
• Optimize application performance and troubleshoot production issues.
• Participate in code reviews, technical discussions, and architecture planning.

Must-Have Skills:

• 4.5+ years of experience in Java development.
• Strong proficiency in Spring Boot and RESTful APIs.
• Proven hands-on experience with AWS services (EC2, S3, Lambda, RDS, etc.).
• Solid understanding of microservices architecture, CI/CD, and containerization tools.
• Experience with version control (Git), and deployment tools.

Node.js Developer / NestJS Developer – Job Description

A Bachelor’s Degree or Master’s Degree in Computer Science is preferred with excellent problem solving skills.

Job Type: Full-time

Job Location: Bengaluru (on site)

Preferred Skills: TypeScript / Nodejs, SQL/ MySQL

Experience: Min 2yrs in similar Role.

Responsibilities:

• Develop and Maintain Server-side Logic: Design, implement, and maintain the server-side logic using Node.js, ensuring high performance and responsiveness to requests from the front-end.
• API Development: Build and maintain RESTful APIs for seamless integration with front-end services and third-party applications.
• Database Management: Work with databases (such as MongoDB, MySQL, PostgreSQL) to ensure data consistency, reliability, and optimal performance.
• Code Quality and Testing: Write clean, maintainable, and efficient code. Implement automated testing platforms and unit tests.
• Collaboration: Work closely with front-end developers, designers, and other team members to define and implement technical solutions that meet business requirements.
• Troubleshooting and Debugging: Identify issues, debug, and resolve bugs and other technical problems in a timely manner.
• Documentation: Create and maintain documentation related to application development, API usage, and system operations.
• Stay Updated: Keep up-to-date with the latest industry trends and technologies to ensure the application remains modern and competitive.

At Upswing, we are a passionate and self-driven team of thinkers who aspire to build the rails to connect the legacy financial sector with financial innovators through a simple and powerful banking-as-a-service (BaaS) platform. We’re building our platform putting the focus on pragmatism, reliability, and maintainability. We believe that keeping the engineering complexity under control is key to preserving the development productivity and long-term evolution of a platform.

To bring this vision to life, we are building the infrastructure using Microservices architecture using the latest set of technologies that are also fun to work with such as Java, Scala, Postgres, Akka, Kafka with a completely automated DevOps pipeline from the get-go using tools like Chef, Jenkins, Grafana, Graylog.

We are looking for motivated engineers who will be working in a highly creative and cutting-edge technology environment to build a world-class financial services suite.

Why you should join us:

• You will redefine the financial services landscape for India in the coming years.
• Be part of a core Engineering team that will create innovative and scalable Fintech solutions.
• Work with passionate and experienced engineering, product & business workforce that believes in teamwork, and that helps fast-track learning on solving complex technical challenges.
• We are funded by the leading fintech VC `QED Investors` and other established Founders and Executives of awesome Indian companies.

What you will do if you join us:

• Propose solutions to solve complex system architecture challenges and actively lead the end-to-end development of the system.
• Create robust, flexible, consistent, and easy-to-use APIs
• Continuously strive for performance improvements, code reusability, and readability
• Understand the product in detail and predict potential issues in feature development.
• Mentor and lead junior members of the team

You should have:

• Ability to think of out of the box
• Tech or a higher degree in computer science or a related field.
• 3+ years of experience working on the back-end development for complex distributed systems who are willing to adopt any Programming language as per the requirement.
• Familiarity with any of the following – Java, C++, Scala, Kotlin, and frameworks like Spring, Play, Hibernate, Django, etc.
• Good understanding of Algorithms, Data Structure, OOP, Design patterns, Parallel programming, Multithreading concepts & Event-Driven Systems.
• Understanding of micro-services architecture and best practices.
• Experience with Relational databases such as MySQL, PostgreSQL, Oracle, or any NoSQL database.

It is a plus if you have:

• Familiarity with cloud platforms like AWS (Amazon Web Services), Azure or Google Cloud

Roles & Responsibilities:

• Design and Build API/Micro services using Spring boot.
• Experience in Spring Reactive programming.
• Exposure to docker and containerization
• Developing enterprise grade highly scalable java-based application
• Writing test cases using Java testing framework like JUnit, Mockito.
• Proficient understanding of code version tools, such as Git, SVN
• Displaying initiative and an ability to lead others, and develop applications team disciplined manner
• Participating in application solutions including assisting with planning and architectural design, development, resolution of technical issues, and application rationalization.
• Utilizing and applying robust analytic thinking with the ability to identify, debug, and resolve technical issues.
• Achieving significant contributions within a small team of developers to lead teams and deliver solutions within an Agile methodology, whilst ensuring quality, timeliness and team-wide adherence to good architectural practice and guidelines.
• Good Experience in Application Software Design and Development, Object Oriented Analysis and Design (OOAD), Software Testing and Debugging.
• Conduct peer code reviews

Build reusable APIs for our client-facing apps in Node.js

Create and maintain scalable infrastructure leveraging modern cloud platforms Write tests and documentation as you implement features with your team Maintain expertise in current and emerging technologies and tools

4+ years’ Experience with NodeJS

BS degree or higher in Computer Science or Engineering Experience documenting and testing RESTful APIs

Experience working with databases in PostgreSQL, MongoDB or Redis

Experience and enthusiasm for working collaboratively with others in an Agile environment