Backend Developer

Job Title: Java Developer

Java Developer – Job Description Wissen Technology is now hiring for a 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. - 1 to 3 years.

Wissen Technology is hiring Java + Scala Developers with 1–3 years of experience. We are looking for candidates with strong hands-on skills in Java and Scala, good analytical abilities, and the capability to work in a dynamic environment.

Key Requirements:

• Experience in Java and Scala
• Strong understanding of core programming concepts
• Good problem-solving and debugging skills
• Must be available for immediate joining
• Should be open to face-to-face interviews in Bangalore or Mumbai

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 hassuccessfully 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.

Job Title: Senior Product Software Engineer I

Location: Bangalore, India

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Software Engineer (Backend / Distributed Systems)

This role is for a hands-on Backend Software Engineer with 5+ years of experience building and maintaining large-scale distributed systems. The candidate will be responsible for developing scalable backend services, optimizing system performance, improving reliability, and contributing to architecture decisions.

Key Responsibilities

• Design, develop, and maintain backend services and APIs.
• Build scalable and reliable distributed systems.
• Collaborate with global engineering teams (US & India).
• Participate in system design, code reviews, testing, and CI/CD processes.
• Monitor production systems and provide support through on-call rotations.
• Improve system performance, fault tolerance, observability, and resiliency.
• Contribute to architectural discussions and technical decision-making.

Mandatory Skills

• 5+ years of software development experience.
• Strong coding skills in Java or Python.
• Experience with Distributed Systems and Microservices Architecture.
• Hands-on experience with REST APIs and API-driven applications.
• Strong knowledge of MySQL or PostgreSQL.
• Experience with CI/CD, testing, and code quality practices.

Preferred Skills

• Spring Boot (for Java developers).
• Kafka, Kinesis, or other event-driven/streaming technologies.
• Docker and Kubernetes.
• Terraform or Infrastructure as Code tools.
• Cloud platform experience (AWS/GCP/Azure).
• High-throughput and low-latency system experienc

Job Description

We are looking for a ROR developer. If you're a creative problem solver who is eager to develop amazing products and hungry for a new adventure, a word class workplace is waiting for you in the heart of Bengaluru / Kolkata or remote.

• Production experience in Ruby.
• A completed technical degree in Computer Science or any related fields.
• 3+ years of professional product development experience.
• Being comfortable with microservices architectures, API-based
• You are a pragmatic programmer who understands what is needed to get things done.
• Problem solving and collaborative mindset.
• Experience working with DevOps (Docker, Kubernetes, Terraform).
• Experience with AWS (RDS, DDB, Lambda, CW, EC2, SQS, SNS, Cognito, Kinesis).
• Experience with performance improvements (Caching Techniques, SQL Query Optimization, Performance monitoring and profiling.
• Deep understanding of service-oriented and microservices architectural patterns, troubleshooting methods and best practices.
• Takes end to end ownership of the development and operation of complete features.

1. Java Developer

Job profile:

• Project Role: Spring boot application developer
• Project Role Description: Design, build and configure spring boot applications to meet
• business process and application requirements.
• Work Experience: Fresher. Should have done at least one project in Java. Hands on
• experience on the Spring boot project is an added advantage.

Must Have Skills: Core Java or Spring boot Application

Important: Engineers should be able to code, Interview will involve actual coding

Key Responsibilities:

• Design, build and configure applications to meet business process and application requirements
• Understanding of

1. server side technologies, how the web applications work. Role of Database and APIs in modern web and mobile applications.
2. client side web frameworks, such as Angular or React and they integration with back end systems

• Implementation and customization of Web based solutions
• Development of custom components such as web interfaces, Validation Services etc.
• Continuously discover, evaluate, and implement new technologies to maximize development efficiency.
•     Write clean, maintainable code while rapidly iterating and shipping
•      Participate in all phases of development, from design to implementation, unit testing, and release.
•  Knowledge of javascript, OOPS including experience with design Pattern
• Excellent in Design patterns, Data Structure.

Technical Experience:

• Engineers should have done project(s) in Java or Spring boot.
• Knowledge of

1. Test and automation tools
2. Git
3. Restful APIs.
4. Solid understanding of object-oriented design and programming concepts.

• Have a passion for quality and writing clean, solid, readable code that scales and performs well.

Expected Competencies:

• Adaptable to change; able to respond to shifting requirements and priorities
• A well-organized and structured approach to work with good attention to detail.
• Comfortable with coordinating and collaborating with business teams to drive required decisions and outcomes.
• A high degree of personal integrity and strong ability to work collaboratively and effectively in a fast-paced, flexible, team-based environment.

Applicant must have a min of 4 years of experience as a Java Developer and a Min of 2 years on Spring boot, Augular knowledge must, having an experience in Angular would be an added advantage.

Detailed JD

Resources with below skill sets :

- Angular JS

- Spring MVC

- Spring Boot

- Hibernate

- PostgreSQL

- Drools

- SVN

- Jenkins

- SonarQube

- Foresighted & good judgement in problem solving.

- Capable of paying attention to detail.

- Good analytical and logical thinking.

- Prioritizing and organizing

- Team Player with positive attitude.

- Process knowledge/Technical expertise

- Good Written and Verbal communication Skills

- Analyse & understanding of the SRS.

- Report queries on the SRS/Requirement.

- Prepare low level design document

- Prepare Unit test cases

• Develop, maintain and support company
• Assist in technical specification and solution design documentation to address customer needs
• Ensure customer implementations are delivered to meet/exceed customer expectations
• Collaborate with cross-functional teams on project delivery, solution development, and deployment as needed

Requirements:

• 2+ years experience in a software development/consulting role, preferably in comprehensive eBusiness and Supply Chain Solutions
• 2+ years experience in Software Analysis, Design, and Development using J2EE technology stacks (Core Java, JSP, XML, Hibernate & Java scripts) and Oracle database (PL/SQL)
• 2+ years experience with the configuration and Installation of J2EE servers like Web logic, Web Sphere, and Oracle
• 2+ years experience with integration technology (knowledge of EAI and B2B tools)
• 2+ years working knowledge of UNIX system (Solaris and Linux)
• Exceptional verbal and written communications skills
• Excellent interpersonal & planning skills and cross-group coordination at all levels
• Bachelor Degree in Computer Science, or equivalent
• Willing to travel when needed.

Preferred (Optional) Skills:

• Supply-chain domain experience implementing and integrating Global Trade Management solutions
• Experience in the integration, deployment or support of an ERP, SCM, or similar systems from SA

• Experience in Web and Mobile Applications.
• Agility and ability to adapt quickly to changing requirements and scope and priorities
• Strong proficiency with JavaScript (ECMAScript 5, 6)
• Knowledge of Node.js and frameworks available for it (SailsJS, Express)
• Understanding the nature of asynchronous programming and its quirks and workarounds.Familiarity with front-end technologies.
• User authentication and authorization between multiple systems, servers, and environments.
• Interaction with multiple data sources.
• Good understanding of SQL syntax.
• Understanding fundamental design principles behind a scalable application.
• Understanding differences between multiple delivery platforms, such as mobile vs. desktop, and optimizing output to match the specific platform.
•  Implementing automated testing platforms and unit tests.
• Proficient understanding of code versioning tools, such as Git.
• Knowledge in the field of IOT is good to have.

•  5-10 years of experience in building API services using NodeJS Express and related frameworks
• Expert level understanding of NodeJS asynchronous runtime
• Expert level understanding of Javascript concepts on callbacks and closures
• Experience with Postgres, NoSQL, Redis, and Firebase real-time database
• Experience with AWS services like Elastic Beanstalk, Cloudfront, S3, EC2, Lambda, API Gateway, SQS, etc
• Understanding of patterns and techniques for building scalable back-end infrastructure including caching, rate limiting, authentication, and authorization schemes.
• Experience in building highly scalable and high throughput services with millisecond response times
• Experience working in a collaborative team environment
• Excellent communication & interpersonal skills
• Willingness to learn and pick up new technology along with patience to mentor

Bonus skills – 

• Experience with Elastic Search, Puppeteer
• Experience writing unit test