
Key Responsibilities
1. Architect & Design
- ○ Define and maintain service architecture in Go and Node.js, ensuring scalability, resilience, and low latency.
- Lead the creation and upkeep of comprehensive Entity-Relationship Diagrams (ERDs) and maintain an up-to-date data model library.
2. Team Leadership & Mentorship
- Manage, mentor, and inspire a diverse team of 5–10 backend engineers (“maverick” talent), fostering collaboration, autonomy, and ownership.
- Conduct regular code reviews, design discussions, and performance feedback sessions.
3. AI/ML Integration
- Collaborate with Data Science and ML engineers to integrate OpenAI models (e.g., GPT-4) for features like smart audio transcription, summarization, and recommendation.
- Work with DataStax (Cassandra) or similar NoSQL systems to power low-latency user analytics and AI inference pipelines.
4. Delivery & Quality
- Establish and enforce best practices for CI/CD, automated testing, performance benchmarking, and observability (metrics, logs, tracing).
- Own SLA/SLOs and incident response processes, driving rapid root-cause analysis and post-mortems.
5. Cross-Functional Collaboration
- Partner with Product, UX, and DevOps to translate business goals into technical roadmaps and deliver on tight timelines.
- Evangelize backend and data architecture decisions across the engineering organization.
Must-Have Qualifications
● Technical Expertise:
- 6+ years backend experience with Go and Node.js, building microservices in production.
- Deep understanding of RESTful APIs, gRPC, message queues (Kafka/RabbitMQ), and event-driven architectures.
- Data Modeling:
- Proven ability to author and maintain ERD documents, relational and NoSQL schema design (PostgreSQL, DataStax Cassandra).
● Team Leadership:
- 2+ years managing high-performance engineering teams, with a track record of growing and mentoring “maverick” engineers.
● AI/ML Integration:
- Hands-on experience integrating AI/ML models, preferably OpenAI APIs or
- custom ML pipelines, into backend systems
● Operational Excellence:
- Strong background in designing CI/CD pipelines (Jenkins/GitHub Actions), containerization (Docker/Kubernetes), and cloud services (AWS/GCP).
Nice-to-Have
● Experience with GraphQL or real-time streaming architectures (WebSockets).
● Familiarity with large-language‐model fine-tuning and hosting on infrastructure like AWS SageMaker or Azure ML.
● Background in user-centric analytics and personalization algorithms.
● Open source contributions in Go or Node.js ecosystems.
What We Offer
● Competitive salary with performance bonuses and equity options.
● Flexible work hours and hybrid work policy.
● Generous learning & development budget for conferences, courses, and certifications.
● A culture that values creativity, ownership, and rapid experimentation.
● Opportunity to shape the future of audio social in India’s biggest emerging markets.

Similar jobs
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: 1-2 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.

- - Software Developer with minimum 3 years of experience in developing C# WPF/Winforms applications.
- - Ability to understand requirements
- - Write effective and reusable code according to best practices.
- - Must be a dynamic, autonomous, and team-oriented individual.
- - Expertise in C#, WPF/ Winforms Oops Concept
- - Solid understanding of Object-Oriented design and concepts.
- - Good in logical and problem solving skills
- - Good analytical and debugging skills
- - Knowledge in design patterns
- - Knowledge of unit testing framework, code analysis tools
- Notice Period: Immediate to 30 days
- Years of Exp: 3+ years
- Location: Pan India
- Work Location: Bangalore(WFO only)



- Previous working experience as a MySQL Developer for at least 3 years
- Identify opportunities for improved performance in SQL operations and implementations
- Oversee the operations of the production and staging environments databases
- Give design recommendations for database functions that meet business operating standards while improving the efficiency of business processes
- Train and mentor junior personnel on best practices
Candidate Profile:
- Bachelor’s/Master’s degree in Engineering, Computer Science
- At least 5+ years of relevant experience as a database programmer
- Excellent MySQL/PostgreSQL/MS-SQL development skills
- Experience in writing stored views, procedures, triggers etc.
- Excellent knowledge in RDBMS (important features)
- Strong problem-solving skills, technical troubleshooting, and diagnosing
- Solid knowledge of RDBMS and NoSQL technologies
- Experience in developing back-ends for enterprise systems
- Knowledge of debugging, performance and optimization techniques
- Experience in RDBMS technologies like MySQL, PostgreSQL etc.
- Experience in No SQL technologies like MongoDB, Cassandra etc.
- Knowledge of Caching DB like Redis, Memcached etc.
- Knowledge of Search DB like Solr, Elasticsearch etc.
- Demonstrated ability to deliver in a fast-paced environment.
We are looking for a Java developer responsible for building Java applications. This includes anything between complex groups of back-end services and their client-end counterparts. Primary responsibility will be to design and develop these types of applications and to coordinate with the rest of the team working on different layers of the infrastructure.
Responsibilities:
Contribute to all stages of the software development lifecycle
Design, build and maintain efficient, reusable, and reliable Java code
Design, implement and maintain applications that can be high-volume and low-latency
Identify bottlenecks and bugs, and devise solutions to these problems
Help maintain code quality, organization, and automatization
Skills:
Minimum 3+ years of experience in Java
Proficient in Java and Springboot
Solid understanding of object-oriented programming
Familiar with various design and architectural patterns
Skill for writing reusable Java libraries
Familiarity with concepts of MVC, and RESTful
Proficient understanding of code versioning tools, such as Git
Familiarity with build tools such as Maven, and Gradle
Excellent knowledge of Relational Databases, SQL, and ORM technologies (Hibernate)
Excellent written and verbal communication.
- Highly proficient in JavaScript and Typescript, PassportJs, Sequelize.
- Working knowledge of Node.js frameworks such as ExpressJs, SailsJs, VueJs and ElectronJs.
- Good understanding of server-side templating languages such as Jade, EJS, Mustache etc.
- Good understanding of server-side CSS preprocessors such as Stylus, Less,Sass etc.
- Basic understanding of front-end technologies, such as HTML5, and CSS3
- Sound knowledge of Testing frameworks such as Mocha, Chai, Jasmine, Cucumber etc.
- Experience of writing unit, integration and E2E tests.
- Experience of working with SQL databases.
- Experience of integrating third party APIs.
- Good understanding of code versioning tools, such as Git.
- Good Communication Skills.
What you will do:
- Playing a part in defining software architectures – collaborate with leads to explore existing systems, determine areas of complexity, uncover potential risks to successful implementation, and learn the applications’ capabilities.
- Implementing solutions as per technical design for new features and changes to existing components.
- Participating in the full development lifecycle of new functionality and enhancements to existing applications.
- Committing to producing high quality, highly performing and robust software within agreed time estimates and to agreed quality standards.
- Managing all stakeholder expectations.
- Working alongside global teams.
- Taking responsibility for successful delivery.
- Being able to work in a fast paced Agile/SCRUM environment.
- Following coding standards, building appropriate unit tests, integrating tests and deployment scripts.
- Assisting in defining software architectures – Collaborating with leads to explore existing systems, determining areas of opportunities.
- Translating designs and style guides provided by the Design team into functional user interfaces, ensuring cross browser compatibility and performance.
- Contributing to continual improvement by suggesting improvements to user interface, software architecture or new technologies.
The brand is associated with some of the major icons across categories and tie-ups with industries covering fashion, sports, and music, of course. The founders are Marketing grads, with vast experience in the consumer lifestyle products and other major brands. With their vigorous efforts toward quality and marketing, they have been able to strike a chord with major E-commerce brands and even consumers.
What you will do:
- Collaborating with the UX and UI design teams to produce seamless, robust and innovative front-end user experiences
- Working closely with Project Managers to deploy project requirements
- Managing multiple projects simultaneously and be able to address their specific needs and requirements at a moment's notice
- Understanding business needs that drive project features and functions and provide internal consultation
Desired Candidate Profile
What you need to have:- Bachelor's Degree in IT, Computer Science, Computer Programming or a similar field
- 2+ years of experience developing within the Shopify and Shopify Plus platforms
- 2+ years of experience in front-end technologies including, but not limited to, JavaScript, AJAX, HTML, CSS, SASS, XML
- Troubleshooting and debugging skills
- Interest in staying current and applying the most current best practices
- Ability to work effectively in a fluid, fast-paced environment
- A true passion for design and technology
- A disciplined approach to testing and quality assurance
- Positive attitude, high energy, and love for broadening web development skill set
Required Skills
- As a Senior Core Java Developer, you will have a range of responsibilities from shaping and implementing strategic products to ensuring that company stays on the leading edge of technology
- You will have generic capabilities across application development stack and strong technical expertise in one / two application layers
- Excellent working knowledge of the following technologies:
- Implementation exp (hands-on) on Server Side Java technologies (Core Java, Multithreading, Concurrent API’s, Executor services, collections, concurrent packages, DS/Algo, design patters/principles, basic data case, Junit/agile)
- Design Patterns
- SQL and Relational Databases such as DB2
- Hands-on experience on Spring and Hibernate





