Java Developer

Quick Facts About the Role

Role:

Senior Software Developer (Backend) - .Net with Microservices & Cloud

YOE:

6.5+ years

Skills:

C#, ASP. Net, Microservices Architecture, ASP.NET Core, Web API development, Azure Kubernetes Service (AKS), API Gateway / Azure API, Entra (Authentication), Azure Service Bus, Azure Functions, Azure Blob storage, Caching, NoSQL Databases

About the Role

The Software Developer Senior Designs, builds, tests, and – most importantly – ships high-value software that solves real problems. Strives for security, performance, simplicity, usability, and maintainability. Mentors and guides less experienced software engineers.

Responsibilities

1. Team Contribution

• Works within established agile methods, promoting an atmosphere of continuous improvement.
• Continuously learns new technologies and patterns and practices.
• Documents knowledge for the benefit of the team.
• Reports to the team on obstacles and roadblocks.
• Participates in, and occasionally leads, sprint planning, standups, retrospectives, and other team meetings.
• Promote patterns and best practices on the team.
• Mentors and guides the less experienced software engineers.

2. Planning and Design

• Works with the product team and stakeholders to refine and document requirements.
• Estimates effort for planning purposes.
• Designs and documents enterprise-level software architecture, consulting with Enterprise Architecture when appropriate.

3. Development

• Writes code to develop software that meets requirements and specifications.
• Follows established software development life cycle (SLDC).
• Writes code with readability and future maintenance in mind.
• Follows established source control standards and best practices.
• Adheres to established secure coding practices.
• Reviews code for other developers.
• Leads team-based development efforts.

4. Quality Assurance

• Validates QA findings and fixes defects.
• Develops integration and testing points in the software that allow for QA testing.
• Assists QA in running performance and load tests.

5. Release

• Assists with release planning and releases.

6. Support

• Assists the support team as needed, including root cause analysis.
• Writes maintenance and metric statistics scripts and entry points for measuring and monitoring.

Requirements

Solid Understanding of The Following:

Microservices Architecture:

• Microservices design principles (bounded contexts, loose coupling)
• API-first design and contract management
• Event-driven design principles
• Asynchronous messaging patterns
• Eventual consistency concepts
• Idempotency and message replay handling

Technical Skills:

• ASP.NET Core Web API development
• Web Apps
• Azure Kubernetes Service (AKS)
• Azure Blob Storage usage and lifecycle management
• API Gateway / Azure API Management concepts
• Entra (Authentication)
• Azure Service Bus
• Azure Functions
• Caching
• NoSQL Databases

Processes & Standards:

Git, GitFlow, OO Programming, Kanban, Secure Coding, & Agile Methodologies

Bonus Skills

• Excellent written and verbal communication
• Excellent documentation
• Continuous learning
• Collaboration across team and functional boundaries
• Troubleshooting and creative problem solving
• Design simple architecture that supports complex applications and APIs
• Architect extensible databases
• Author complex component-based client applications and restful APIs
• Perform advanced CRUD operations against multiple data sources
• Manipulate enterprise level data structures
• Mentor less experienced team members
• Take ownership of team processes and legacy applications
• Perform business analysis tasks, such as requirements gathering and wireframing

Evaluation Criteria

• Consider candidates with 6.5+ years of experience only (do not go below this threshold).
• Must have excellent communication skills.
• Ensure the mandatory technical skills are clearly reflected in the resume:
• C# (async/await, dependency injection, LINQ)
• ASP.Net Core
• RESTful APIs
• Microservices Architecture
• ASP.NET Core
• Web API development
• Azure Kubernetes Service (AKS)
• API Gateway / Azure API
• Entra (Authentication)
• Azure Service Bus
• Azure Functions
• Azure Blob storage
• Caching
• NoSQL Databases
• Candidates should have at least 3 years of hands-on experience with Azure and Microservices.
• This Azure and Microservices experience must be from their current or a recent previous project.

About Wissen Technology

Wissen Technology, established in 2015 and part of the Wissen Group (founded in 2000), is a specialized technology consulting company. We pride ourselves on delivering high-quality solutions for global organizations across Banking & Finance, Telecom, and Healthcare domains.

For more details:

Website: www.wissen.com

Wissen Thought leadership : https://www.wissen.com/articles/

LinkedIn: Wissen Technology

Role: Java Backend Developer with AWS

Key Responsibilities

● Design & Development: Build robust, scalable, and maintainable backend services using Java 17+ and the Spring Boot ecosystem.

● API Design: Develop and document RESTful for consumption by web and mobile frontends.

● Database Management: Optimize complex queries and design schemas for relational (PostgreSQL, MySQL) and/or NoSQL (MongoDB, DynamoDB) databases.

● Microservices Architecture: Contribute to the migration or maintenance of microservices, ensuring high availability and low latency.

● Code Quality: Perform thorough code reviews and write comprehensive unit, integration, and functional tests (JUnit, Mockito).

● Cloud & DevOps: Deploy and manage applications in AWS using Docker and Kubernetes.

● Collaboration: Work closely with Frontend Developers, Product Managers to translate business requirements into technical specifications.

Required Technical Skills

● Java Mastery: Deep understanding of Core Java, Multithreading, and Stream API.

● Frameworks: Extensive experience with Spring Boot, Spring Security, and Spring Data JPA/Hibernate.

● Cloud Experience: Proficiency with cloud-native services (e.g., AWS Lambda, S3, RDS, or SQS).

● Messaging: Experience with message brokers like Apache Kafka for asynchronous processing.

● CI/CD: Hands-on experience with Jenkins, GitLab CI, or GitHub Actions.

● Version Control: Expert-level knowledge of Git and branching strategies.

Qualifications & Soft Skills

● Experience: 5+ years of professional experience in backend development.

● Problem Solving: Ability to debug complex production issues and performance bottlenecks.

● Communication: Excellent verbal and written communication skills—vital for a remote/hybrid contractor setup.

● Adaptability: Proven ability to quickly learn new codebases and business domains.

Job Details:

• Role: Senior Staff Engineer, Java, Node JS
• Experience: 7.5 -9 Years
• Employment Type: Full-time
• Work Mode: Bengaluru (Onsite- 5 days)

Job description

REQUIREMENTS:

• Strong experience in Backend Engineering, Microservices, and Distributed Systems
• Deep hands-on expertise in Java and Node.js development 
• Strong experience in designing and developing RESTful APIs and backend services 
• Strong understanding of OOP, Data Structures, Algorithms, and Software Design Principles 
• Hands-on experience with PostgreSQL, MongoDB, or similar databases 
• Experience with system design, scalability, fault tolerance, and performance optimization
• Experience with Redis, messaging systems, and event-driven architectures
• Hands-on experience with Git, automated testing, CI/CD, Docker, and Kubernetes
• Strong understanding of API security, authentication, and authorization
• Experience with observability, monitoring, and production support
• Strong troubleshooting, analytical, and problem-solving skills
• Experience working in Agile/Scrum environments
• Excellent communication and stakeholder management skills
• Experience with Spring Boot, TypeScript, NestJS, Kafka, and AI-assisted coding tools is preferred

RESPONSIBILITIES:

• Design, develop, and maintain scalable backend services, microservices, and APIs
• Build high-performance RESTful and event-driven applications
• Own system design, data models, integrations, scalability, and reliability
• Collaborate with product and engineering teams to deliver business solutions
• Write clean, secure, maintainable, and well-tested code
• Conduct code reviews and mentor junior engineers
• Troubleshoot production issues and perform root cause analysis
• Improve CI/CD pipelines, monitoring, logging, and operational practices
• Optimize application performance, database efficiency, and system scalability
• Participate in architecture discussions, design reviews, and technical decision-making
• Implement security best practices and engineering standards
• Support platform modernization and continuous improvement initiatives
• Leverage modern development tools and AI-assisted coding practices to improve productivity
• Participate in Agile ceremonies and collaborate with cross-functional stakeholders
• Ensure delivery of high-quality, reliable, and scalable backend solutions.

Qualifications

Bachelor’s or master’s degree in computer science, Information Technology, or a related fields

Responsibilities:

• Experience and working knowledge of Java 8, Hibernate, Spring Boot, Microservices and REST API is mandatory
• Expert understanding of the object-oriented design and programming concepts
• Strong problem solving skills, data structures and algorithms and multithreading
• Good understanding of AWS and cloud-native technologies
• Knowledge of AWS services - RDS, DynamoDB, Elastic Search, Kinesis. Experience of working with AWS SDK is preferred.
• Good understanding of CI/CD and Jenkins pipeline
• Experience of writing unit tests using Junit/Mockito
• Knowledge of Integration Testing framework like Cucumber is required.
• Proficient in Git commands and branching concepts

• Develop creative solutions and write technical design based on the requirements.
• Work closely with peer teams to ensure that applications are written to allow for overall system performance.
• Assist in tuning and optimization.
• Develop and execute unit tests for product components.
• Perform peer code reviews and provide feedback.
• Promote high quality, scalability, and timely completion of projects.
• Apply agile approach to coordinate development and determine project scope and limitations.
• Bachelor degree in Engineering, CS or equivalent experience
• Development in Core Java, J2EE, Struts, spring, Client-Side scripting, Hibernate, Database
• Development of scalable core-java applications, Web Applications and Web Services
• OOP concepts 
• Data Structures, algorithms and their applications
• Strong problem-solving skills
• Experience in building microservices
• Strong experience with Spring Boot stack (spring cloud, spring-data)
• Extensive experience in developing and consuming REST APIs
• Experience in Kafka distributed messaging
• Hands-on experience in Redis, Apache Ignite, Hazelcast
• Strong experience in RDMS and NoSQL databases Mongo
• Experience in using Elastic Search
• Experience in profiling applications
• Strong analytical skills and general logical reasoning
• Excellent written and verbal communication skills.
• Good understanding of Software development life cycle (SDLC)
• Basic SQL queries

Senior Java Backend Developer

Are you a passionate backend developer looking for a new challenge in an international company? Do terms like spring-boot, Redis, Amazon EC2, REST-API and document based databases like MongoDB make you smile and would you like to work in an international company that values your personal growth? We are expanding in India and are looking for an enthusiastic and experienced Java Developer to join the team.

Together with the team, you will be responsible for the development and migration of our FlexWhere application from a PHP based application to a java application. You report to the Manager Development & Support and collaborate with our Dutch IT Team, who work from our headquarters in the Netherlands. We work with two-week sprints, in which features and improvements are tested in an alpha and beta environment, after which you will release the services in our Kubernetes cluster. Our applications are being used by thousands of customers in Europe on a daily basis. By being in close contact with our helpdesk, you know what our users struggle with and how you can improve their experience.

You are not afraid to take ownership and have good interpersonal skills. You believe a good user experience is the ultimate goal and you continuously discover, evaluate and implement new technologies to maximize development efficiency. All in all: you have an innovative spirit and cannot wait to get aboard into an international IT-organization!

• A degree in Engineering (B.Tech or BE);
• Minimum of 3-year work experience as a Java developer in Java and/or Kotlin, Groovy;
• Proficient understanding of code versioning tools (Git);
• Experience with third-party API’s and third-party libraries like MongoDB, Redis, MySQL, ElasticSearch;
• Familiar with automation testing tools;
• Knowledge about scaling architectures in the cloud like EC2.

• Competitive salary;
• Place within a company that is committed to diversity and inclusion;
• Excellent career progression opportunity within an international organization;
• The chance to discover the land of tulips and windmills!

We are Dutchview. An innovative IT company based in the Netherlands with offices in Germany, the United Kingdom and India. Our solutions make it possible for organisations to work smartly and effectively. So that they can focus all their energy on what they do best. It is precisely this freedom that leads to greater job satisfaction: the basis for better results. We make it easy for you.

• Exp- 3+ yrs
• Must be very good in Java- 2.5+ yrs
• At least 1 yr of working experience in any one DB of Neo4j, Cassandra, Elastic Search
• Should have good devops working knowledge - Knowledge of AWS, Ansibleetc is a necessity
• Experience in TDD/BDD is required
• Minimum 1 yr working experience in Samza& Kafka.
• Knowledge of Azure is added advantage
• Understanding of AKKA and Play framework