Backend Developer

Job Title: Back-End Developer

Department: IT

Experience: 3.5 Years+

Location: Mohali

Shift: Rotational Shifts

Employment Type: Full-time

Job Overview:

The Senior Backend Developer will be responsible for the full lifecycle of our backend services, focusing on architecture, security, and performance.

Key Responsibilities:

• Core API Development & Logic: Design, build, and maintain robust, scalable, and secure RESTful/ GraphQL APIs using Node.js and Python to serve both internal and external consumers.
• System Architecture: Lead the design and implementation of application components, focusing on microservices architecture, ensuring services are loosely coupled and highly available.
• Database Management: Expertly manage and optimize complex database schemas and queries for both SQL (PostgreSQL/MySQL) and NoSQL (MongoDB/Redis) systems, ensuring data integrity and high performance.
• Performance and Scalability: Identify and resolve performance bottlenecks, implement caching strategies, and optimize server-side code and architecture for maximum speed and scalability.
• Code Quality and Standards: Write clean, efficient, well-documented, and testable code. Conduct thorough code reviews and mentor junior developers on best practices, design patterns, and coding standards.
• Security Implementation: Implement security and data protection settings,including authentication, authorization, and encryption protocols.
• DevOps and Deployment: Work with DevOps pipelines (CI/CD, Docker, Kubernetes) for smooth and automated deployment of services to cloud platforms (AWS/Azure/GCP).
• Collaboration: Work closely with cross-functional teams (Frontend, Product, QA) to understand requirements and translate them into technical specifications and deliver high-quality features.

Required Skills & Qualifications:

• Programming Expertise: Deep, demonstrable expertise in Node.js and Python.
• Node.js: Strong command of asynchronous programming, event loops, and related frameworks (e.g., Express.js).
• Python: Extensive experience with web frameworks (e.g., Django, Django Rest Framework, Flask).
• API Design: Proven ability to design and implement highly performant and secure RESTful APIs. Experience with GraphQL is a strong advantage.
• Databases: Expert knowledge of both Relational (e.g., PostgreSQL, MySQL) and NoSQL databases (e.g., MongoDB, Redis, Cassandra). Proficiency in query optimization and schema design.
• Cloud & Tools: Experience with cloud computing platforms (e.g., AWS, Azure, or GCP). Proficiency with Docker and Git.
• Testing: Strong experience with unit, integration, and end-to-end testing frameworks.

Soft Skills & Leadership

• Problem-Solving: Excellent analytical and problem-solving skills with a track record of troubleshooting complex production issues.
• Communication: Strong verbal and written communication skills to articulate technical decisions and collaborate effectively with diverse teams.
• Ownership: Proven ability to take ownership of complex projects, drive them to completion, and manage technical debt.

At Palcode.ai, We're on a mission to fix the massive inefficiencies in pre-construction. Think about it - in a $10 trillion industry, estimators still spend weeks analyzing bids, project managers struggle with scattered data, and costly mistakes slip through complex contracts. We're fixing this with purpose-built AI agents that work. Our platform can do “magic” to Preconstruction workflows from Weeks to Hours. It's not just about AI – it's about bringing real, measurable impact to an industry ready for change. We are backed by names like AWS for Startups, Upekkha Accelerator, and Microsoft for Startups.

Why Palcode.ai

Tackle Complex Problems: Build AI that reads between the lines of construction bids, spots hidden risks in contracts, and makes sense of fragmented project data

High-Impact Code: Your code won't sit in a backlog – it goes straight to estimators and project managers who need it yesterday

Tech Challenges That Matter: Design systems that process thousands of construction documents, handle real-time pricing data, and make intelligent decisions

Build & Own: Shape our entire tech stack, from data processing pipelines to AI model deployment

Quick Impact: Small team, huge responsibility. Your solutions directly impact project decisions worth millions

Learn & Grow: Master the intersection of AI, cloud architecture, and construction tech while working with founders who've built and scaled construction software

Your Role:

• Design and build our core AI services and APIs using Python
• Create reliable, scalable backend systems that handle complex data
• Help set up cloud infrastructure and deployment pipelines
• Collaborate with our AI team to integrate machine learning models
• Write clean, tested, production-ready code

You'll fit right in if:

• You have 1 year of hands-on Python development experience
• You're comfortable with full-stack development and cloud services
• You write clean, maintainable code and follow good engineering practices
• You're curious about AI/ML and eager to learn new technologies
• You enjoy fast-paced startup environments and take ownership of your work

How we will set you up for success

• You will work closely with the Founding team to understand what we are building.
• You will be given comprehensive training about the tech stack, with an opportunity to avail virtual training as well.
• You will be involved in a monthly one-on-one with the founders to discuss feedback
• A unique opportunity to learn from the best - we are Gold partners of AWS, Razorpay, and Microsoft Startup programs, having access to rich talent to discuss and brainstorm ideas.
• You’ll have a lot of creative freedom to execute new ideas. As long as you can convince us, and you’re confident in your skills, we’re here to back you in your execution.
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Location: Bangalore, Remote

Compensation: Competitive salary + Meaningful equity

If you get excited about solving hard problems that have real-world impact, we should talk.

All the best!!

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.

• Experience 4 – 5 years
• Good in Backend Springboot
• write Rest API (Should be strong in this area)
• Good Analytical ability, Good coding practice, Knowledge of Spring Security (Desirable),
• UI Knowledge of Angular (Average knowledge should be enough)

Required Skills

• Proficiency in CS concepts such as Data Structures, Algorithms and Operating systems.
• More than 2 years of experience in a development Team with very good knowledge and hands-on experience using Java technologies.
• Knowledge of Java MVC Framework Spring MVC / Spring Boot.
• Good SQL and NoSQL skills
• Knowledge of/experience developing Web APIs using RESTFUL services.
• Deep expertise in at least one programming language & tech stack to write maintainable, scalable, unit-tested code - preferably Java.

Good to Have

• Strong object-oriented design skills, knowledge of design patterns, and an uncanny ability to design intuitive module and class-level interfaces.
• Participation in open source projects.
• Active involvement in solving problems on Github, Stackoverflow and similar other community groups
• Hands on experience on PubSub patterns such as Kafka / RMQ
• Experience with full life cycle development in any programming language on a Linux platform

Responsibilities and Duties

• You will translate high level business problems into scalable design and code.
• Create libraries & Utilities for larger consumption.
• Should understand and have knowledge on the application security practices/vulnerabilities.
• You will write performant, unit-tested code, develop object-oriented models and design data structure for new software projects taking systems aspects into account.