Backend Developer

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.

It is a platform for creators, influencers and celebrities to grow, manage and monetise their community. It is aimed at both established and aspiring online creators who want to pursue their passion. Our vision is to enable anyone and everyone to make a successful living doing what they enjoy.

Skills And Qualification:-

• Must have experience with any scripting language (JavaScript/NodeJS preferred)
• Experience with API-driven and highly scalable application is a plus
• Good knowledge of non-relational DB (MongoDB preferred)
• Good with data structures and algorithms
• Good to have an experience with testing framework and CI/CD pipeline
• 1+ years of experience in software development preferably B2C experience.
• Basic understanding of Frontend and client side frameworks like React, Angular, Vue will be plus
• Experience in building scalable Restful APIs & Services.

Education requirement:-

• B.Tech (computer science preferred)

Responsibilities:-

• Clarify feature requirements with product team

• Design end to end feature flow

• Write scalable and bug free code

• Take care of test and deployment pipeline

• Maintaining the existing products

Location :- Bangalore (HSR Layout,Sector 1)

Description:

We are looking for a highly capable NodeJS developer to optimize our web-based application performance. You will be collaborating with our front-end developers, designing back-end components, and integrating data storage and protection solutions.

Roles and Responsibilities:

• User authentication and authorization between multiple systems, servers, and environments.
• Extensive web services development with RESTful interfaces
• Integration of data storage solutions, Solution for MongoDB, API Integration
• Responsible for the development and maintenance of applications target for the range of any kind of web application API development and Solidity experience is better if candidate has knowledge.
• Primary focus will be development of React based web applications and their integration with back-end API services.
• Independent practitioner and advanced programmer and will be working alongside cross platform engineers and testers on different layers of the infrastructure.
• Commitment to collaborative problem solving, sophisticated design, and the creation of quality products is essential.
• Ensure the performance, quality, and responsiveness of applications.
• Collaborate with a team to define, design, and ship new features.
• Identify and correct bottlenecks and bug fix.
• Help maintain code quality, organization, and automatization.
• Engagement in client communication, requirement collection, analysis, and documentation activities, in case if it would require.
• Design and Implement Architecture solutions
• Contribute in all phases of the development lifecycle
• Able to make sure that the platforms keep up with high standards of scalability, stability, security, and performance.
• Convey effectively all task progress, evaluations, suggestions, schedules along with technical and process issues.
• Troubleshooting bug reports and help to establish ambitious goals to improve our codebase in general

Requirements:

• Minimum 2 years of experience in Node JS
• Should have worked on at least one Node JS framework
• Must have worked on Agile development methodologies.
• Strong understanding of front-end technologies
• In-depth knowledge of Node.js, Express.js, MongoDB, Postman, REST API
• Excellent communication skills both verbal and written (English)
• Implementing automated testing platforms and unit tests
• Proficient understanding of code versioning tools

How we work:

• We use Microsoft Teams for daily communication, conduct daily standups and team meetings over Teams.
• We value open discussion, ownership, and a founder mindset.
• We prioritize design, amazing UI/UX, documentation, to-do lists, and data-based decision-making.
• We encourage team bonding through bi-weekly town halls, destressing sessions with a certified healer, and fun company retreats twice a year.
• We offer a 100% remote workplace model, health insurance, top performers eligible for attractive equity options, mental health consultations, company-sponsored upskilling courses, growth hours, the chance to give back with 40 hours for community causes, and access to a financial advisor.
• Wobot is an Equal Opportunity Employer

Responsibilities:

• Participation in the requirements analysis, design, development and testing of applications.
• The candidate is expected to write code himself/herself.
• The candidate is expected to write high level code, code review, unit testing and deployment.
• Practical application of design principles with a focus on the user experience, usability, template designs, cross browser issues and client server concepts.
• Contributes to the development of project estimates, scheduling, and deliverables.
• Works closely with QA team to determine testing requirements to ensure full coverage and best quality of product.
• There is also the opportunity to mentor and guide junior team members in excelling their jobs.

Requirements:

• BE/B. Tech. Computer Science or MCA from a reputed University.
• 3.5 - 6.5 Years of experience in software development, with emphasis on JAVA/J2EE Server side programming.
• Hands on experience in Core Java, Multithreading, RMI, Socket programing, JDBC, NIO, webservices and Design patterns.
• Should have Knowledge of distributed system, distributed caching, messaging frameworks ESB etc.
• Knowledge of Linux operating system and PostgreSQL/MySQL/MongoDB/Cassandra database is essential.
• Additionally, knowledge of HBase, Hadoop and Hive are desirable.
• Familiarity with message queue systems and AMQP and Kafka is desirable.
• Should have experience as a participant in Agile methodologies.
• Should have excellent written and verbal communication skills and presentation skills.

Responsibilities

• Ideate, execute & take ownership of complete project from scratch
• Create and design User-focused focused SAAS with high end experience  
• Optimize existing architecture for performance, scalability & functionality 
• Generate modular & clean codes 
• Deploy & maintain project’s infrastructure with zero downtime 

Skill Sets

• Sharp communication skills 
• Fluent in Problem Solving, Data Structures And Algorithms
• Strong in Java Spring Boot & Python Django languages & frameworks
• Experience with database design & familiar with RDBMS database like Postgresql as well as no SQL databases 
• Good with writing unit test cases & integration test cases 
• Well versed in writing Asynchronous codes or technologies
• Exposed to various AWS technologies like EC2, Cognito, API Gateway,ECS etc.
• Exposed to Pub-sub technologies like SQS,Kafka, RabbitMQ, etc. 
• Familiar with caching tools like Redis, HazleCaste, etc. 
• Exposure to DevOps and Big Data is a plus.

• Having around 8+ years of Experience in IT industry in Software Development.
• Sound knowledge in Core Java
• Having work experience in SDN/NFV, Orchestration
• Having work experience in Open source and Open Flow Controller(SDN).
• Experience in Aglie methodology.
• Good Knowledge on MySQL ,Postgresql or any Timeseries DB,Kafka, Zookeeper
• Good Knowledge on ONOS, ODL (OpenDaylight) OpenKilda,Mininet.
• Having work experience in MVT/MVC architecture.
• Having good knowledge networks, devices, service modeling and automation in systems.
• Having work experience on API & JSON implémentation.
• Knowledge in OpenStack,Ansible, Shellscript, Chef, Puppet,
• Good Understanding of Software Development (i.e. SDLC)
• Good team player enthusiastic and quick learner
• Good interpersonal skill, commitment, result oriented with a quest and learn new technologies and understanding challenging tasks
• Knowledge in AWS, AZURE Cloud

Programming Languages: Perl, Python, java. Perl programming with strong OOPs knowledge.

• UI: HTML, JS
• System: Linux must have – good knowledge and shell scripting experience.
• Prior experience in infrastructure automation, monitoring will definitely help.

Description:

The person in this role:

- Will be involved in developing new monitoring scripts, enhancement & defect fixes on existing monitors

- Have to be on-call to support any incoming production/P1 internal issues which need urgent attention (team members are on call for a week and we have a weekly rotation policy within the team)

Preferred skills:

Perl
- Shell scripting

- Unix

- Jenkins

• Mandatory skills: Spring boot, Hibernate, Microservice
• Strong Java skills including Java 8 features 
• Good understanding of Microservices-based architecture and the related ecosystem 
• Exposure to MS SQL Server, Sybase etc. and NoSQL databases like MongoDB is also preferred.
• Great OO skills, including strong design patterns knowledge 
• Strong knowledge of software best practices, like Test-Driven Development (TDD) and
• Continuous Integration (CI) 
• Strong Knowledge of Data Structures & Algorithms
• Experience in working with data-driven RESTful APIs using web frameworks like SpringBoot,etc. 
• Should be able to do data modeling
• Good understanding of ORMs like Hibernate, JPA, etc. 
• Strong debugging skills
• Familiarity with architectural/ design patterns
• Advanced knowledge of Agile methodology.

• Having experience in Hospitality/Travel/Internet/Online/Start-up/IT/Logistic/Courier/Cargo/ Transportation would be preferable.