Backend Developer - Java,Springboot & AWS

JOB DESCRIPTION

Experience: 5-8 years

Location: Mumbai

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. - 5-8 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.

We are looking for a passionate and experienced Java Developer with over 4 years of hands-on experience in building robust and scalable backend systems using Java, Spring Boot, and Microservices architecture.

Key Responsibilities:

• Design, develop, test, and deploy high-performance, scalable, and secure backend services using Java 8+, Spring Boot, and Microservices.
• Participate in the entire software development lifecycle (SDLC), from requirements gathering to production deployment and support.
• Collaborate with frontend developers, DevOps engineers, and product owners to deliver end-to-end features.
• Optimize application performance and ensure high availability and responsiveness.
• Write clean, maintainable, and reusable code while following best practices (coding standards, unit testing, CI/CD, etc.).
• Develop RESTful APIs and ensure their quality and consistency.
• Handle integration with external systems and third-party services.
• Participate in code reviews, provide constructive feedback, and mentor junior developers.

Technical Skills Required:

• Languages: Java 8 or above
• Frameworks: Spring Boot, Spring MVC, Spring Security
• Architecture: Microservices architecture and design patterns
• Databases: MySQL/PostgreSQL, MongoDB (optional)
• Messaging: Kafka, RabbitMQ (optional)
• API Development: RESTful APIs, Swagger/OpenAPI
• Version Control: Git, GitHub/GitLab
• Tools: Maven/Gradle, Jenkins, Docker
• Testing: JUnit, Mockito
• Cloud (optional): AWS/Azure/GCP exposure
• CI/CD & DevOps tools (optional): Jenkins, Docker, Kubernetes

Nice to Have:

• Experience in containerization and orchestration (Docker, Kubernetes).
• Knowledge of API Gateway, Service Registry (e.g., Eureka), and Circuit Breakers (e.g., Hystrix or Resilience4j).
• Experience with Agile methodologies (Scrum/Kanban).
• Familiarity with monitoring and logging tools (ELK, Prometheus, Grafana, etc.).

• 3+ years of experience in the Development in JAVA technology.
• AWS or cloud Experience
• 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

Good to Have Skills:

• 3+ 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.

Job Description: Backend Developer – Design Qandy

Who are we?

Design Qandy delivers personalised luxury interior design to India’s discerning homeowners and corporates. Led by highly admired luxury brand builders, internationally trained designers, world-class technology professionals and curated teams of turnkey project execution specailists. We seek perfection in design and are committed to bringing back trust and excitement in the design process.

Know more about us on designqandy.com and https://instagram.com/designqandy?igshid=YmMyMTA2M2Y=

Our work culture?

We are a lean team of high performing go-getters, we take ownership in our roles and lead with knowledge. Debates and discussions are an important part of our culture and we encourage people to bring unique perspectives to their conversations. Most importantly, we love solving problems.

Each day is inspiring and we encourage you to apply for this role and experience it for yourself.

What would you be required to do?

·      Write code and tests, build prototypes, solve issues, profile, and analyze bottlenecks

·      Design performance gauging, building robust APIs to support mobile and desktop clients

·      Manage and optimize scalable distributed systems on the cloud

·      Optimization of web applications for performance and scalability

·      Develop automated tests to ensure business needs are met and allow for regression testing

·      Participate in the entire application lifecycle, focusing on coding and debugging

·      Write clean code to develop functional web applications

·      Troubleshoot and debug applications

·      Perform UI tests to optimize performance

·      Manage cutting-edge technologies to improve legacy applications

·      Collaborate with Front-end developers to integrate user-facing elements with server-side logic.

·      Gather and address technical and design requirements

·      Provide training and support to internal teams

·      Build reusable code and libraries for future use

What skills we are looking for?

·      Good communication skill to communicate with stakeholders, project managers, quality assurance teams, Regularly and other developers regarding progress on the long-term technology roadmap

·      Curious and progressive mind to Create and maintain workflows with teams to provide visibility and to ensure workload balance for consistent visual designs

·      Good technical knowledge to Produce quality code, raising the bar for the whole team on quality and speed

·      Through analytical skills to Recommend system solutions by comparing advantages and disadvantages of custom development and purchase alternatives

Skills Needed:

·      PHP Laravel Framework, PHP Design Patterns.

·      Proficient in MySQL, PostgreSQL, MongoDB

·      APIs, REST API, SOAP API, API Security, Open APIs

·      Push Notifications, Laravel Events, Queue, Observers

·      Excellent foundation in computer science, algorithms, and web design

·      Experience writing highly secure web applications

·      Experience with core AWS web-enabling technologies

·      Growth mindset, challenging status quo to find new solutions and out-of-the-box ideas

·      Experience designing RESTful APIs, specifically for mobile apps

·      Computer science degree or equivalent experience

·      Experience leading a team

·      3-6 Years’ experience in back-end development.

Founded in 2012,leader in high-assurance digital identity verification technology.  Named to Forbes’ 2019 AI 50 list as one of America’s most promising AI companies, and a recent winner of API World’s Best Data API, technology applies artificial intelligence and machine learning techniques with trusted online/offline data intelligence from email, address, phone, IP, social media and the broader Internet to verify identities in real-time. Customers include three of the top five U.S. banks, seven of the top 10 U.S. card issuers, as well as the majority of leading digital banks, lenders and insurers across the U.S. We are funded by some of the world's best investors and entrepreneurs including Scale Venture Partners, Commerce Ventures, Work-Bench, Santander InnoVentures and Two Sigma Ventures.

The only way we can further our mission of becoming the single, trusted source of identity verification and eliminating identity fraud is by building the best team on the planet. This is where you come in!

We are hiring Software Engineers across all levels in Chennai!

What You'll Be Doing:

• You will partner with our globally distributed cross-functional teams (Product, Infrastructure, Engineering, Data Science) to conceptualize and develop new features and products in an Agile environment. 
• You will own end-to-end delivery of software components all the way to production, owning team features or systems. 
• You will be building web services and REST APIs at scale, and producing high-quality results with direct business impact. 
• You will be monitoring and improving existing deployments, ensuring that we are continuously improving our product. 
• You will be assisting our QA and support team in triaging and resolving production issues and addressing bugs.

What You'll Bring:

• You are interested in our tech stack (Java or Scala, SQL Databases, NoSQL, Microservices, and AWS)
• You will have strong computer science fundamentals: data structures, algorithms, various programming languages, distributed systems, etc. 
• You understand engineering best practices and seek to improve engineering standards, tooling and processes. 
• You write “good code” - easily understandable, secure and testable! 
• You are comfortable helping drive technical decisions within our Engineering team. 
• You have experience building applications at scale.

Perks & Benefits:

• Competitive base salary
• Equity - every employee is a stakeholder in our enormous upside
• A tech-first company culture driven by entrepreneurial thinking and talent
• A great team working in unison towards the same mission
• Transparency is what our product is built on—and so is our culture
• Daily catered lunch and snacks
• Generous health insurance for employees and dependents
• Flexible work schedule and work-from-home options
• Flexible PTO

We are an equal opportunity employer and value diversity of all kinds at our company. We do not discriminate on the basis of race, religion, color, national origin, gender, sexual orientation, age, marital status, veteran status, or disability status. 

Have an experience building backend server side applications in Node.js and Express.js

Have in-depth knowledge and experience of using ES6+ features and Object Oriented Principles

Have sound knowledge and are familiar with databases like MongoDb - (Preferred) and Mysql.

Have good exposure to cloud native technologies (AWS Lambda, S3, RDS, etc) 

Have working knowledge of version control (Git) and continuous deployment 

Have experience in optimising backend API’s and database queries for optimal performance.

You are good at problem solving and have analytical skills 

You are flexible in adapting new technologies and frameworks as per the projects needs

1. 0 to 2 years of experience into Java 6/7/8, J2EE, EJB, Servlets, JSP, JDBC, LOG4J, SQL, PL/SQL, XML, XSLT, JSON,
2. Good to have strong experience in Core Java SpringBoot, Spring framework
3. knowledge of Spring MVC, Spring REST, JDBC Templates
4. Knowledge of Java/J2EE Design patterns
5. knowledge of implementation of WebServices like REST will be added advantage
6. Good knowledge of Relational Databases like MySQL, PostgreSQL, MS SQL Server with complex SQL Queries, Stored Procedure, Triggers
7. Knowledge of Unit Test Cases is added advantage
8. Knowledge of build tools like Maven, Gradle, Ant
9. Knowledge of any one or more of MongoDB, Cassandra, Neo4J, Redis, Kafka, ActiveMQ, Caches, Microservices will be a major plus
10. Good to have knowledge of ORM like Hibernate
11. Knowledge and experience in nodejs backend will be added advantage

Requirements :

1. Must be a good team player and self-motivated Individual
2. Very Strong analytical abilities and interpersonal skills
3. Strong verbal and written communication skills with other developers and business clients
4. High commitment levels

- Build the backend for Android & iOS application and website with Company Dashboard (MIS). 
- Integration of user-facing elements developed by front-end developers with server side logic 
- Design and implementation of low-latency, high-availability, and performance applications
-Well versed with AWS and Server deployment 
- Excellent knowledge of Spring frameworks 
- Excellent knowledge of Java, JSP, JavaScript, AJAX, HTML, JSON 
- Good knowledge of MySQL 
- Knowledge of coding standards and good commenting practices 
- Experiences in developing RESTful web services must. 
- Ability to understand business requirements and translate them into technical requirements 
- Ability to design applications around natural user interfaces 
- Experience with REST API connections 
- Writing reusable, testable, and efficient code 
- Integration of data storage solutions
- Build the backend for application and website with Android App, IOS, Company Dashboard. 
- Own software quality and optimize UI 
- Understand closely the requirements of the customers and get the features implemented on time 
- Creating of strong project timeline along with budgeting and regular reporting