Java developer

Job Overview:
We are looking for a Java Developer with experience in building high-performing, scalable,
enterprise-grade applications.

You will be part of a talented software team that works on mission-critical applications. Java
developer roles and responsibilities include managing Java/Java EE application development
while providing expertise in the full software development lifecycle, from concept and design to
testing.

Responsibilities and Duties:
• Contribute to all phases of the development lifecycle
• Write well designed, testable, efficient code
• Ensure designs should follow compliance with specifications
• Prepare and produce releases of software components
• Support continuous improvement by investigating alternatives and technologies and
presenting these for architectural review

Qualifications:
• BE/MCA/BCA/MS/BS degree in Computer Science, Engineering, or a related subject
• Minimum 1 to 4 years of experience
• Proven hands-on Software Development experience
• Proven working experience in Java development
• Hands on experience in designing and developing applications using Java EE
platforms
• Excellent knowledge of Relational Databases, SQL and ORM technologies (JPA2,
Hibernate)
• Experience in the Spring Framework
• Very good English communication skills
• Optional:
o Good to have the knowledge of Angular JS framework.
o Experience to work on the Micro service architecture.
o Experience to work with Git hub & bitbucket.
o Agile methodology.

Technical Requirement:

• At least 5 years of experience in Java, J2EE technologies.
• Expertise in doing development using Java, Spring Boot, Spring modules (Spring Security, Spring MVC, Spring Data JPA, etc.), Hibernate, Web Services
• Worked on REST web services.
• Worked on application server : Tomcat
• Worked on Eclipse IDE
• Knowledge of Swagger, Postman
• Worked on Database like MySQL
• Worked on Git, Maven, CI/CD pipelines
• Good to have knowledge of using Docker and Mongo DB

Job title and location:

Sr. Backend Developer, based in Bangalore, India

Who we are:

VAHN is a seed-funded fintech and mobility application which integrates tracking, load planning, billing, performance management and cost management with a payment wallet and seamless credit to deliver a powerful solution for truck-owners and truck-drivers.

We are a very small team with a big idea and lots of passion, and we’re on a mission to bring Indian trucking into the next generation of tech.

The trucking industry in India is fragmented, unorganised, and fraught with numerous challenges that haven’t yet been solved. Although the industry is ripe for disruption, not many have been able to take advantage of the opportunity because of a lack of exposure to ground realities and practical challenges. Combining years of research and first-hand experience running trucks ourselves, we believe we have an edge.

We are looking for a passionate teammate who is as excited about the mission as we are, and is keen to delve deep into this challenging but exciting space. Trucking is getting upgraded, are you in?

What we are looking for:

//  Passion for good design and hunger for making a big impact

//  Extensive experience in backend engineering along with the best practices as per language

//  Ability to thrive in complexity

//  Leadership qualities and versatility

What you should enjoy doing:

//  Building exceptional products with robust and reliable code

//  Working in a fast-paced, ambiguous environment

//  Collaborating with designers playing a critical role in design, planning, development and deployment

//  Being the technical voice at the table, educating and guiding the business on the right approach, technologies, and trends

//  Building a team and mentoring fresh talent

What the role is about:

As a core team member you will design and develop the next-generation of technologies for the Indian trucking industry with the potential to change how millions of drivers, truck owners, transporters, and shippers manage their businesses and transact with one another. Some specific responsibilities include,

//  Building scalable, reliable, and high-performing tech infrastructure

//  Improving operational excellence by identifying and building the right solutions for observability and manageability

//  Continuously discovering, evaluating, and implementing new technologies to maximize development efficiency

//  Developing robust, quick prototypes for proof-of concept features / application based on briefs

//  Unit-test coding for robustness, including edge cases, usability, and general reliability.

//  Providing development support, code review and optimisation.

//  Working with outside data sources and APIs.

Qualifications:

//  5+ years of backend engineering experience

//  Experience working with Microservices/RESTful APIs (Http/WebSockets), /Swagger/OpenPI, third-party SDK Integrations and common technologies like HTTPS, JSON, OAuth, and SQL

//  Experience working with Java 11 and above, SpringBoot 5.x/Micronaut 3.x

// Proven experience at building actor based systems and Reactive programming is a big plus

// Demonstrated experience at using messaging system such as Kafka/Rabbit MQ/SQS/SNS

//  Experience at unit testing with Junit/Mockito

//  Good understanding of Data Structures and Algorithms

//  Experience with multi-tier application architecture and design

//  Cloud experience/knowledge (AWS/GCP)

//  Experience at developing containerised applications using Docker/Kubernetes

//  Experience at building systems using MySQL/Cassandra/MongoDB

//  Knowledge of Microservices patterns is a big plus

//  Knowledge of serverless computing (AWS Lambda/Cloud Functions) is a big plus

//  Experience in structuring solutions with Redis as caching layer

//  Experience at building integration with external systems is a plus

//  Strong written and verbal communication and ability to gain buy-in from a non-technical audience

Role/ Responsibilities

• Design APIs, DB, Queues, monitoring for micro services. 
• Writing, deploying and managing micro services. 
• Migrate existing components into distributed micro service architecture. 
• AWS Cloud / Google Cloud Platform (Manage Infrastructure). 
• API integration with 3rd parties. 
• Unit test cases, automation. 
• Database optimisation. 
• Design of highly concurrent backend architecture. 
• Handling high traffic data. 

Experience required: 

• Sound fundamentails in software design. 
• Must have worked on distributed and micro service architecture. 
• Sound fundamentals on scale/ performance/ memory optimisation. 
• Sound fundamentals of authentication, authorization, payment processes, data security. 
• Must have experience in Spring / Spring boot. 
• Good to have experience in Kafka / JMS / RabbitMQ / AWS Elastic queue. 
• Good to have experience in Junit / mockito unit test cases. 
• Good to have knowledge in Mysql (or any RDBMS). 

• Independently own one or more multiple modules, which includes: requirement analysis, design, development, maintenance & support
• Write extensive, efficient code to address complex modules and that handles interaction between multiple components. 
• Rapidly iterate to add new functionalities and solves complex problems with simple and intuitive solutions
• Produce architecture with clean interfaces, that are efficient and scalable
• Participate and contribute to architectural discussions
• Perform design and code reviews
• Perform technical feasibility and trade off studies & guides others to perform these studies
• Solve production issues. Investigate and provide solutions to minimize the business impact due to outage
• Continuously improve performance metrics of modules you own.
• Actively mentor and develop junior developers in all software development practices
• Participate in the hiring process (referrals, interviews, attending recruiting events or writing blogs)
• Onboard and mentors new team members, helps shape the culture of the team

We are looking for a highly motivated developer with at least 1+ years of strong hands-on experience in Java to join our startup. You would be playing a pivotal role in contributing to the initial tech stack. You would be further responsible for designing and implementing product requirements that are highly usable, scalable, extensible, and maintainable. You should be comfortable working across different technologies/frameworks that we work on - Microservices, Java, Spring, Spring Boot, MySQL, Kubernetes, AWS.

Responsibilities and Duties:

• Design and build scalable REST APIs on Spring Boot
• Develop, test, tune for performance and deploy microservices
• Collaborate with the team, optimize and refactor the back-end architecture
• Maintain high standards of quality for code, documentation and other deliverables
• Active cross-team coordination would be expected

What are we looking for?

• 1+ year experience in Core Java & backend technologies
• Good working knowledge of design patterns & OOAD
• Excellent analytical and problem-solving skills
• The skills that we consider: Java, MySQL/RDS, Spring/ Play, Maven, Redis, Kafka/SQS, Elasticsearch, AWS
• Experience in micro-services
• Previously worked in a startup