Java Developer Job Responsibilities
A developer is responsible for several Java-related duties throughout the software development lifecycle, from concept and design to testing. The developer is required to create user information solutions through the development, implementation, and maintenance of Java-based components and interfaces.

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🚀 Hiring: Java Developer
⭐ Experience: 4+ Years
📍 Location: Pune
⭐ Work Mode:- Hybrid
⏱️ Notice Period: Immediate Joiners
(Only immediate joiners & candidates serving notice period)
Requirements
✅ Strong proficiency in Java (Java 8/11/17)
✅ Experience with Spring / Spring Boot
✅ Knowledge of REST APIs, Microservices architecture
✅ Familiarity with SQL/NoSQL databases
✅ Understanding of Git, CI/CD pipelines
✅ Problem-solving skills and attention to detail
We are looking for a Software Engineer with strong hands-on development experience to help build, enhance, and maintain our technology platform. The role involves owning the end-to-end software development lifecycle and delivering scalable, high-quality applications aligned with business needs.
Key Responsibilities:
Technology & Development
- Design, develop, test, deploy, and maintain scalable software applications.
- Work across a multi-stack environment, including:
- Frontend: HTML, CSS, JavaScript, TypeScript
- Backend: Node.js, Express.js
- Database: MongoDB
- Architecture: Microservices
- Cloud: AWS
- Develop and enhance information systems by analyzing requirements, designing solutions, and implementing robust code.
- Ensure adherence to software development lifecycle (SDLC) best practices.
System Analysis & Solution Design
- Evaluate operational feasibility through problem analysis, requirement gathering, and solution design.
- Study system flows, data usage, and business processes to deliver effective solutions.
- Identify problem areas and propose improvements to system design and performance.
- Prepare system specifications, standards, and programming guidelines.
Documentation & Quality
- Create clear technical documentation including flowcharts, diagrams, layouts, and code comments.
- Demonstrate solutions effectively to stakeholders.
- Maintain high code quality, readability, and maintainability.
Operations & Maintenance
- Install, configure, and maintain software solutions across multiple application, web, and database servers.
- Conduct system analysis to improve operations and recommend changes to processes and policies.
- Support licensing, evaluation, testing, and approval of third-party software products.
- Ensure data security and confidentiality across all systems.
Architecture, Security & Integrations
- Work with SOA-based architectures and web services.
- Apply strong knowledge of web security best practices, including protection against XSS, CSRF, SQL Injection, etc.
- Contribute to systems involving microservices architecture, with exposure to:
- Basic blockchain protocols
- Peer-to-peer (P2P) networks
Required Experience & Skills
- Strong experience in full-stack or backend-heavy development using Node.js and modern JavaScript/TypeScript.
- Hands-on experience with MongoDB and distributed systems.
- Experience deploying and managing applications on AWS.
- Familiarity with microservices-based architectures and service-oriented design.
- Experience working with multiple application, web, and database servers.
Nice to Have
- Exposure to blockchain technologies and decentralized systems.
- Prior product development experience in the Supply Chain / Logistics domain.
About Sun King
Sun King is the world’s leading off-grid solar energy company, delivering energy access to 1.8 billion people without reliable grid connections through innovative product design, fintech solutions, and field operations.
Key highlights:
- Connected over 20 million homes to solar power across Africa and Asia, adding 200,000 homes monthly.
- Affordable ‘pay-as-you-go’ financing model; after 1-2 years, customers own their solar equipment.
- Saved customers over $4 billion to date.
- Collect 650,000 daily payments via 28,000 field agents using mobile money systems.
- Products range from home lighting to high-energy appliances, with expansion into clean cooking, electric mobility, and entertainment.
With 2,800 staff across 12 countries, our team includes experts in various fields, all passionate about serving off-grid communities.
Diversity Commitment:
44% of our workforce are women, reflecting our commitment to gender diversity.
About the role:
The Backend Developer works remotely as part of the technology team to help Sun King’s EasyBuy business unit design and develop software to improve its field team operations.
What you will be expected to do
- Design and develop applications/systems based on wireframes and product requirements documents.
- Design and develop logical and physical data models to meet application requirements.
- Identify and resolve bottlenecks and bugs based on operational requirements.
- Perform unit tests on code to ensure robustness, including edge cases, usability, and general reliability.
- Write reusable and easily maintainable code following the principles of DRY (Don’t Repeat Yourself).
- Integrate existing tools and business systems, both in-house and external services, such as ticketing software and communication tools.
- Collaborate with team members and product managers to understand project requirements and contribute to the overall system design.
You might be a strong candidate if you have/are
- Have development experience: 1-3 years backend development experience and have strong problem-solving abilities, proficiency in data structures, and algorithms.
- Have a profound grasp of object-oriented programming (OOPS) standards and expertise in Core Java.
- Have knowledge of SQL, MySQL, or similar database management.
- Have Experience in integrating web services, such as SOAP, REST, JSON, and XML.
- Have familiarity with RESTful APIs for linking Android applications to backend services.
- Have preferred experience with version control systems like Git, but not mandatory.
- Have additional knowledge of web technologies like HTML, CSS, JavaScript, and frameworks like Spring or Hibernate would be advantageous.
What we offer (in addition to compensation and statutory benefits):
- A platform for professional growth in a rapidly expanding, high-impact sector.
- Immerse in a collaborative culture, energized by employees of Sun King who are collectively motivated by fostering a transformative, sustainable venture.
- A genuinely global environment: Engage and learn alongside a diverse group from varied geographies and backgrounds.
- Tailored learning pathways through the Sun King Center for Leadership to elevate your leadership and managerial capabilities.
- Strong experience in Core Java, Multi-Threading, data structures (List/Map/Set) and unit testing with (Junit, Mockito)
- Strong experience with Spring Framework (Spring MVC, Spring REST, Spring Data), ORM frameworks (JPA, Hibernate) and RDBMS (Oracle/MySQL/Postgres)
- Strong experience in applying Object-Oriented design principles and Design Patterns
- Good knowledge of Multi-Tier architecture, Micro Services architecture and Service Oriented Architecture
- Exposure to AWS Cloud, NoSQL Database (Mongo, Cassandra), Message Broker (Active
- MQ/RabbitMQ/Apache Kafka) and Big Data Technologies (Hadoop/Hive/Spark)
- Additionally, must possess capability to review code, produce technical specification document
- and knowledge of code quality tools (PMD/FindBugs/Sonar)
- 2.5+ year of experience in Development in JAVA technology.
- Strong Java Basics
- SpringBoot or Spring MVC
- Experience in AWS.
- 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:
- 2+ 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.
From booking a taxi to shopping to even finding a life-partner, technology today is
playing a role which is indistinguishable from magic. However, we are still stuck to
old means of teaching, operations and collaboration in education institutions which
directly impacts student experience as well as learning outcomes. We are
changing this. We are a platform, a philosophy, and a mission.
We are looking for great technologists to join the engineering team of our core
product which will be used by millions of students. Do you see delightful user
experiences and robust back-end engineering as two faces of the same coin? Do
you persevere to relentlessly improve your code till you are intrinsically satisfied? Do
you feel like an engineer and an artist when you deliver a final product? If yes, keep
on reading!
We are a data-driven software product company with a strong focus on delightful
design. While you put your experience and knowledge into practice, you can expect
yourself unlearning and learning new things every day. You will be part of a strong,
passionate, and high-velocity team of engineers that regularly launches big features
that make a significant impact to our offering.
You will be an important member of engineering team reporting to the founding team
with following responsibilities:
Design, architect and deliver our core product modules
Continuously improve and refactor the code-base
Measure and improve application performance, security and stability
Promote innovation, new technologies, and best practices
Review code of reporting engineers and continuously mentor them
Required Experience
4+ years of software development experience with strong concentration in
enterprise SaaS based technologies.
Required Technical Qualifications
Strong design and coding skills in Enterprise Java, REST web services and
JSON.
Deep knowledge of relational databases.
Deep knowledge of Test-driven Development (TDD) and Continuous
Integration (CI) / Continuous Deployment (CD)
Experience with AWS Cloud Computing Services or others.
Strong leadership, communication and teamwork skills.
Ability to work independently and make decisions under minimal supervision.
Need ASAP Joiners!!
Interested Who can Join in maximum of 30 days please share your updated profile with the below-mentioned necessary details
Job Role : Backend Engineer / Sr. Backend Engineer
As a Senior Backend Platform Engineer, you will work closely with engineers/scientists in a small, but fast-growing, team environment while i) applying the state of the art AI technologies in the field of deep learning and computer vision to design and develop the user recommendation platform to help our users to find their best matches and ii) building scalable and reliable backend API services to serve massive volume of client traffic while ensuring best user experience. A successful candidate will have strong technical skills and a motivation to achieve results in a fast-paced environment.
In this Senior Backend Platform Engineer role, you will:
- Design, develop, and operate resilient distributed services that run on ECS or Kubernetes to serve hundreds of millions of users around the world
- Collaborate with various functional teams on expansion of our recommendation systems
- Influence the roadmap and product development of KlearNow App and services
- Recruit, inspire, and develop team members
We're looking for:
- BS/MS in Computer Science or equivalent with 1-5 or 5-10 years minimum industrial working experiences
- Excellent knowledge of Computer Science fundamentals, with strong competencies in data structures, algorithms, software design and coding
- Strong designing and building distributed backend systems handling high volumes of traffic
- Experience in handling ambiguous business requirements with excellent prioritization, time management abilities, and a focus on execution
- Passion to solve complex problems and make continuous improvements
- Experience in Search and Recommendation Systems preferred
- Excellent knowledge and experience on a backend language, like Java, Scala, Go, Node.js, etc.
Bonus points if you have:
- Experience in design and development using NoSQL, such as DynamoDB, Cassandra, or RocksDB
- Experience with Aerospike, ElasticSearch, Kafka, and Spark
- Experience with Agile development methodology and CI/CD
- Experience with Docker containers along with Kubernetes or ECS
If you wish to know more on the opportunity and like to pursue this further, then I would suggest that you share your updated CV and suggest a good time when we could connect.
Why us
KlearNow is operational and a certified Customs Business provider in US, Canada and UK with plans to grow in many more markets in near future. Be a part of a rapidly growing company where you will have the opportunity to extend our leadership position and fast-track innovation behind AI-powered intelligent supply chain solutions.
Over and above the core customs clearance solution, KlearNow is also providing consolidated freight visibility, data and document management and intra-port activity for efficient Drayage.
To know more about KlearNow, please visit our website https://www.klearnow.com/">https://www.klearnow.com/
KlearNow has a flexibility of a small start-up with the security of a well-funded organization with strong backers and advisors.
KlearNow is transforming B2B supply chains with its smart Logistics as a Service (LaaS) platform that connects data, people, processes, and organizations. Its AI-powered platform digitizes paper-based transactions—streamlining customs clearance and drayage services. KlearNow empowers importers, exporters, freight forwarders, and supply chain partners by providing new levels of visibility and productivity to reduce costs and create enhanced customer experiences
Over and above the core customs clearance solution, KlearNow is also providing consolidated freight visibility, data and document management and intra-port activity for efficient Drayage.
KlearNow grows, we’re looking for an Engineering Leader who is passionate about people growth and organizational development. This is a unique opportunity to help build the products and practices that will support KlearNow growth over the next round of funding. In this role, you will reimagine enterprise logistics software and build global products that enable KlearNow expand in Americas, Europe and Asia.
Be a part of a rapidly growing, series B funded tech company where you will have the opportunity to extend our leadership position and fast-track innovation behind AI-powered intelligent supply chain solutions.
Title: Senior Java Developer
Location: Pan India/Remote work
Senior Java Developer
Functional Experience:
5+ years of work experience, bachelor's degree in computer science or a related field, develop applications for cloud computing, design, maintain and operate cloud systems/microservices and applications, keep cloud systems secure, fully tested and integrated with all the other products/applications, understand the language of business and develop to address the business’s needs.
Technical Skills Required:
Minimum 6 year of hands-on Java (including Java 11) programming; Experience and knowledge of open-source software, frameworks around server-side development in Java 11; wide and deep understanding of Java ecosystem, monitoring and diagnosis, Spring Boot.
Notice Period: 0-30 Days
o Minimum 8 years of overall experience in software development.
o Experience as a Lead developer .
o Experience with AWS,Architecture, Node js.
- Well versed in Core Java, OOPs concepts, collections, multi-threading, concurrency, lambdas, and streams.
- Hands-on knowledge of Spring Core, MVC, JPA, Security, transaction
- Working knowledge of REST API designing as well as development, using Spring.
- Exposure to Spring Boot, Docker, Kubernetes, OpenShift for the microservices environment.
- Savvy with SQL and database concepts.
- Ability to use frameworks like JUnit, Mockito, etc., for implementing unit testing.
- Sound understanding of code versioning tools, such as Git/bit bucket with Maven.
- Should have worked in a CI/CD environment with TeamCity/Jenkins.











