
Sr. Java Developer

Mentoring teams to carry forward recognised and optimised solutions, building conducive environments for knowledge transfer and maintaining standards in terms of deliveries form a major part of responsibilities.
Responsibilities
- Design and develop robust scalable database systems
- Design, build and deploy internal applications to support our native technical ecosystem
- Collaborate with Subject-Matter experts to design data-driven modules for analysis
Qualifications
- Bachelor's or Master's degree in Computer Science, Information Systems, Engineering or equivalent
- 3-4 years of experience in Java
Skills
- Expertise in object-oriented programming concepts and data structures
- Strong knowledge of working with XMLs/Jsons
- Experience with large-scale distributed storage and database systems (MySQL, MongoDB, GraphDB)
- Good knowledge of indexing/search libraries like Lucene/Solr/Elasticsearch
- Exposure to Spring MVC architecture and RESTful APIs
- Well-versed with Agile methodology of SDLC
- Good to have: Knowledge of standard DevOps skills like Build tools (Maven/gradle), Continuous integration (Jenkins), Version Control (Github/Gitlab)

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About Sun King
Sun King is the world’s leading off-grid solar energy company, providing affordable solar solutions to the 1.8 billion people without reliable access to electricity. By combining product design, fintech, and field operations, Sun King has connected over 20 million homes to solar power across Africa and Asia, adding more than 200,000 new homes each month. Through ‘pay-as-you-go’ financing, customers make small payments to eventually own their solar systems, saving money and reducing reliance on harmful energy sources like kerosene.
Sun King employs 2,800 staff across 12 countries, with expertise in product design, data science, logistics, customer service, and more. The company is expanding its product range to include clean cooking, electric mobility, and entertainment solutions, all while supporting a diverse workforce — with women making up 44% of the team.
About the role
The Senior Software Developer - Backend will work as part of the Digitization and Automation team to support Sun King design, develop, and implement intelligent, tech-enabled solutions to help solve a large variety of our business problems. We are looking for candidates with an affinity for technology and automations, curiosity towards advancement in products, and strong coding skills for our in-house software development team.
What you will be expected to do:
- Design and build applications/systems based on wireframes and product requirements documents.
- Design and develop coherent and physical data models to meet application requirements.
- Identify and correct bottlenecks/bugs according to operational requirements.
- Focus on scalability, performance, service robustness, and cost trade-offs.
- Create prototypes and proof-of-concepts for iterative development.
- Take complete ownership of projects (end to end) and their development cycle.
- Mentoring and guiding team members.
- Unit test code for robustness, including edge cases, usability, and general reliability.
- Integrate existing tools and business systems (in-house tools or business tools like ticketing software and communication tools) with external services.
- Coordinate with Product Manager, development team, & business analysts.
You might be a strong candidate if you have/are:
- A minimum of 4 years of experience.
- Deep knowledge of OOPS concepts and programming skills in Core Java, Spring Framework.
- Experience in web service development and integration (SOAP, REST, JSON, XML).
- Should be very strong in problem solving, data structures, and algorithms.
- Strong experience in SQL.
- Experience in the AWS suite (Ec2, RDS, Lambda, API Gateway).
- Experience in scripting languages like Python.
- Experience in Microservice Architecture.
- Prior managing/mentoring experience.
- Knowledge of best software engineering practices for all stages of the software development life cycle, including coding standards, code reviews, testing, and deployment.
Good to have:
- Knowledge on messaging systems RabbitMQ, Kafka.
- Container-based application deployment (Docker or equivalent)
- Willing to learn new technologies and implement them in products.
What Sun King offers:
- Professional growth in a dynamic, rapidly expanding, high-social-impact industry.
- An open-minded, collaborative culture made up of enthusiastic colleagues who are driven by the challenge of innovation towards profound impact on people and the planet.
- A truly multicultural experience: you will have the chance to work with and learn from people from different geographies, nationalities, and backgrounds.
- Structured, tailored learning and development programs that help you become a better leader, manager, and professional through the Sun King Center for Leadership.
Location: Mumbai, Maharashtra, India
Desired Experience: 3+ years
Roles and Responsibilities :
We are seeking an experienced Java Engineer to join our team. The ideal candidate will be responsible for designing and developing scalable applications using Java and related frameworks.
Core Accountabilities:
- Design and develop high-quality Java applications using best practices and design patterns Write clean, maintainable, and testable code using Java and related frameworks
- Collaborate with cross-functional teams to develop and deploy applications
- Develop and maintain continuous integration and continuous deployment pipelines using Git and related tools
- Troubleshoot and debug applications in production and development environments
- Stay up-to-date with emerging trends and technologies in software engineering and Java development
Experience required :
- Bachelor's degree in Computer Science or a related field
- 3+ years of experience in developing applications using Java and related frameworks
- Strong experience in Core Java, Spring Framework, Hibernate, and related Java frameworks
- Experience in working with Git for version control and collaboration.
Additional optional requirements
- Knowledge of AWS services
- Experience in working with NoSQL databases such as MongoDB and Cassandra
- Experience in other programming languages such as Python and Node.js
Skills required :
- Excellent problem-solving skills and ability to work in a fast-paced environment Strong communication and collaboration skills



- Having 2-4 yrs of experience
- Have good knowledge of front-end technologies, including HTML5, CSS3, JavaScript, j Query.
- Html to wordPress integration
- Must have Core PHP Knowledge
- Develop and maintain code for various PHP applications.
- Create unique designs.
- Develop website using wordPress
- Create new wordPress theme using various plugins
- User interfaces for websites and/or web applications.
- Good Communication Skills.
We are seeking a highly skilled Java Developer to join our team. The ideal candidate should have at least 5 years of experience in Java development and be able to work from the office.
Responsibilities:
- Develop high-quality software design and architecture using Java technology
- Produce clean, efficient, and maintainable code
- Conduct code reviews and testing to identify and fix software defects
- Collaborate with cross-functional teams to identify and solve complex software problems
- Design, develop and maintain software applications using Java technology
- Debug and troubleshoot software defects
Requirements:
- Proven experience as a Java Developer with at least 5+ years of experience
- Knowledge of web frameworks such as Spring, Hibernate, and Struts
- Familiarity with Agile methodologies and software development life cycle (SDLC)
- Experience with source code management tools such as Git or SVN
- Excellent problem-solving skills and ability to work independently
- Strong written and verbal communication skills
- Immediate joiners preferred
If you are a Java Developer with a strong work ethic and a passion for developing high-quality software solutions, we encourage you to apply.
Job Summary:
We want a techie at heart. Someone who is happy and curious to work on all aspects of software development.
Reporting directly to the CTO, you will be responsible for feature design, development, and continuously optimizing our tech stack.
- We are looking for an experienced software engineer with at least 5 years of experience in a startup or product environment. Ideally you have been involved in all aspects of software development from requirements gathering to design, development, deployment and post-release support. We are looking for all-round technical maturity. Our tech stack is Angular, Spring boot and Django/Python.
Key Skills
Java
SpringBoot
PostgreSQL/MySQL
Git
AWS
REST api design
Experience integrating with external APIs
Good applied understanding of Object Oriented Programming
Good database modeling and SQL knowledge.
/React is a big plus.
Responsibilities and Duties
Build out features across the stack : backend, API design and integration, database optimization , microservices, plugins, queues etc
Fix bugs and write automated tests
Maintain and upgrade our Tech Stack
Translate requirements to design and write/present articulate software design.

● Write clean, maintainable and efficient code
● Design robust, scalable and secure features
● Contribute in all phases of the development lifecycle
● Follow best practices (test-driven development, continuous integration, SCRUM, refactoring and code standards)
● Drive continuous adoption and integration of relevant new technologies into design
Requirements
● 4 to 8 years of experience in developing applications using Ruby on Rails
● Experience in Rails gems like rspec, devise, cancan, active-admin
● Proven work experience in software development
● Experience in writing ReSTful APIs
● Demonstrable knowledge of front-end technologies such as JavaScript, HTML, CSS and JQuery
● Experience developing highly interactive applications
● A firm grasp of Object Oriented analysis and design
● Passion for writing great, simple, clean, efficient code
● Good knowledge of relational databases
● Working knowledge of NoSQL database
● Experience in using AWS services is a plus.
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


- Demonstrated experience in Development, unit test application modules based on specified design using PHP, AngularJS, NodeJS, HMTL5, CSS, J2EE/DB2 technologies using Agile Methods
Experience with Databases and having good knowledge of database

