PHP Developer Mobile Applications Requirement

Job Title: Java Backend Developer

Experience: ~3-6 years (Mid-to-Senior)

Employment Type: Full-time, Permanent

Location : Bangalore

Role Overview

As a Java Backend Developer, you’ll be responsible for designing, developing, and maintaining scalable backend systems and microservices. You’ll work with cross-functional teams to build high-performance distributed services, APIs, and data-driven applications that power business solutions.

Key Responsibilities

• Design and implement microservices and backend components using Java (8+) and Spring Boot.
• Build and consume RESTful APIs and integrate with internal/external services.
• Work with event-driven systems and messaging using Apache Kafka (producers/consumers).
• Develop and optimize databases, including SQL (e.g., MySQL/PostgreSQL) and NoSQL (e.g., MongoDB/Cassandra).
• Participate in CI/CD pipelines, automated builds, and deployments using tools like Git, Maven, Jenkins.
• Ensure code quality through unit and integration testing, documentation, and code reviews.
• Collaborate with frontend developers, QA, DevOps, and product teams following Agile methodologies.

Required Skills & Qualifications

• Bachelor’s degree in Computer Science, Information Technology, or related field.
• Proven hands-on experience with Core Java and Spring Boot development.
• Strong understanding of microservices architecture, REST APIs, and distributed systems.
• Experience with message queues/event streaming (Apache Kafka).
• Skilled in relational and NoSQL databases and writing optimized queries.
• Comfortable with CI/CD tools (e.g., Git, Maven, Jenkins) and version control.
• Good problem-solving, debugging, and collaboration skills.

Preferred / Nice-to-Have

• Cloud platform experience (AWS / Azure / GCP).
• Familiarity with containerization (Docker) and orchestration (Kubernetes).
• Knowledge of performance tuning, caching strategies, observability (metrics/logging).
• Agile/Scrum development experience.

Responsibilities:

• Lead simultaneous development for multiple business verticals.
• Design & develop highly scalable, reliable, secure, and fault-tolerant systems.
• Ensure that exceptional standards are maintained in all aspects of engineering.
• Collaborate with other engineering teams to learn and share best practices.
• Take ownership of technical performance metrics and strive actively to improve them.
• Mentors junior members of the team and contributes to code reviews.

Requirements:

• A passion to solve tough engineering/data challenges.
• Be well versed with cloud computing platforms AWS/GCP
• Experience with SQL technologies (MySQL, PostgreSQL)
• Experience working with NoSQL technologies (MongoDB, ElasticSearch)
• Excellent Programming skills in Python/Java/GoLang
• Big Data streaming services (Kinesis, Kafka, RabbitMQ)
• Distributed cache systems(Redis, Memcache)
• Advanced data solutions(BigQuery, RedShift, DynamoDB, Cassandra)
• Automated testing frameworks and CI/CD pipelines Infrastructure orchestration(Docker/Kubernetes/Nginx)
• Cloud-native tech like Lambda, ASG, CDN, ELB, SNS/SQS, S3 Route53 SES

Oister Global (www.oisterglobal.com) is India’s premier Alternative Assets Manager. We combine robust diligence, deep domain expertise, and an extensive network to create high quality private market opportunities for our investors.

We are seeking a Senior Backend Developer who will be pivotal in architecting and developing scalable, reliable backend systems from scratch. You will work closely with product managers, designers, and other engineers to build new products, design backend architectures, and ensure high performance and responsiveness of the systems. This role requires strong backend fundamentals, cloud experience, a deep understanding of databases, and a passion for system design and architecture.

Key Responsibilities:

● Product Development: Architect, design, develop, test, and deploy new backend products and features from scratch.

● System Design: Take ownership of system design and architecture decisions for new modules, ensuring scalability, reliability, and security. ● API Development: Build efficient and reusable APIs and backend services using Node.js.

● Database Management: Design data models, optimize queries, and manage MongoDB clusters efficiently.

● Cloud Management: Deploy, maintain, and optimize services on AWS, ensuring high availability and performance.

● Best Practices: Maintain coding standards, ensure code reviews, and champion best practices in security, testing, and maintainability.

● Collaboration: Work closely with frontend developers, product managers, QA, and other cross-functional teams to define, design, and ship new features.

● Performance Optimization: Monitor system performance and ensure system uptime and responsiveness.

● Mentorship: Provide guidance and mentorship to junior developers as required.

● Documentation: Maintain thorough documentation of systems, processes, and best practices. Must-Have

Qualifications:

● Education: Bachelor’s degree in computer science, Software Engineering, or a related technical field.

● Experience: 4–5+ years of hands-on backend development experience.

● Expertise in: Node.js (Express.js, Nest.js or similar frameworks) MongoDB (including indexing, replication, sharding concepts) AWS Services (EC2, S3, Lambda, RDS, API Gateway, CloudWatch, IAM, etc.) Proficient in: System design principles Microservices architecture Event-driven architecture Strong understanding of: RESTful APIs.Authentication and authorization best practices (OAuth, JWT) Experience with: CI/CD pipelines Docker and containerization principles Hands-on experience in: Building scalable, distributed, and fault-tolerant systems Good knowledge of : Logging, monitoring, and debugging distributed applications

• At least one year experience with PHP or NodeJS.
• Experience with at least one Relational database like MongoDB, MySQL or NoSQL
• Experience with multiple PHP frameworks will be plus(e.g Wordpress, Laravel, Codeigniter,Symfony, cakePHP)
• Proficiency with multiple PHP Frameworks.
• Proficiency designing and building APIs.
• Comfortable in a work environment that requires strong problem-solving skills and independent self-direction coupled with team collaboration and open communication
• Thorough knowledge of Ajax, Javascript, HTML,CSS and other web technologies XHTML and HTML5 coding is desirable.
• Experience in both Linux and Windows environment development. Understanding of RESTful web services.
• Work in a fast-paced, creative atmosphere to develop new ideas that adapt to evolving user needs
• Experience using Git / GitHub. Excellent communication skills      

About Climate Connect Digital

Our team is inspired to change the world by making energy more intelligent, greener, and affordable. Established in 2011 in London, UK, and now headquartered in Gurgaon, India. We have become a leading energy-AI software player from unassuming beginnings at the vanguard of accelerating the global energy transition.

In 2020, Renew Power, India’s largest renewables developer, acquired Climate Connect. Following ReNew’s listing on NASDAQ during summer 2021, Climate Connect has become the technology anchor of a new fully independent subsidiary - Climate Connect Digital. With backing from ReNew as the anchor investor to pursue an ambitious and visionary new strategy for rapid organic and inorganic growth.

Our mission has technology at its core and involves unlocking value through intelligent software, digitalisation, and ‘horizontal integration’ across the energy ecosystem. However, the application of computational power and machine learning to the energy sector has yet to be fully leveraged and can create massive value.

How you fit in

• Curious. You love learning about new tools and technologies
• Exposure. You have plenty of experience in executing projects successfully. You have a client-side exposure on project management
• Team player. You have no problem working in a team setting. You can effectively collaborate with people to reach a solution.
• Problem solver. You are the person your peers turn to for solving problems.
• Talented. You are an expert in database designing.
• Leader. You know how to prioritize work and inspire your colleagues. You are great with project planning and working on multiple things at once. You know you can effectively lead a group of people.
• Honesty. You work diligently and honestly. You have strong moral principles.

Job Responsibilities

You will be working at the epicenter of energy transformation. You will be creating data-driven software solutions for forecasting and scheduling data in the renewables power market, while guiding your junior team members for the same. Ultimately, through your contribution to the renewable energy revolution, you will be doing your bit to mitigate the effects of climate change. These are a few things you can look forward to working on:

• Designing and implementing low-latency, high-availability, and performance applications
• Identifying and mitigating security-related threats to the application.
• Using your expertise in database designing and application architecture planning for Core & MVC projects
• Debugging browser extensions & server tools
• Solving complex technical issues
• Ensuring quality projects are delivered within defined timelines
• Designing new frameworks, debugging and modifying existing frameworks
• Maintaining databases to ensure strong optimization and functionalities
• Working on multiple Renewables & Utilities projects in Power Market
• Guiding your peers and motivating them to do their best
• Designing and implementing the software as per the project requirements
• Taking responsibility to lead the project teams

Job Requirements

• PHP/Python
• MVC Framework Laravel / Python Flask.
• AJAX, HTML/HTML5 & CSS/CSS3, JavaScript and JavaScript frameworks (preferably jQuery)
• Web services (SOAP, REST)
• SQL and NoSQL scripting and databases like MYSQL and Mongo DB administration
• Code versioning tools, such as Git
• AngularJS / ReactJS
• B.E / B. Tech / M. Tech / BSC in CS or IT
• 4-6 years of experience in the field

What’s in it for you

We offer competitive salaries based on prevailing market rates. In addition to your introductory package, you can expect to receive the following benefits:

• Flexible working hours and leave policy

• Learning and development opportunities

• Medical insurance/Term insurance, Gratuity benefits over and above the salaries

• Access to industry and domain thought leaders.

At Climate Connect, you get a rare opportunity to join an established company at the

early stages of a significant and well-backed global growth push. We are building a remote-first organisation ingrained in the team ethos. We understand its importance for the success of any next-generation technology company. The team includes passionate and self-driven people with unconventional backgrounds, and we’re seeking a similar spirit with the right potential.

Job Description

We are looking for a PHP Developer responsible for managing back-end services and the interchange of data between the server and the users. Your primary focus will be the development of all server-side logic, definition, and maintenance of the central database, and ensuring high performance and responsiveness to requests from the front-end. You will also be responsible for integrating the front-end elements built by your co-workers into the application. Therefore, a basic understanding of front-end technologies is necessary as well.

Responsibilities

• Integration of user-facing elements developed by front-end developers
• Build efficient, testable, and reusable PHP modules
• Solve complex performance problems and architectural challenges
• Integration of data storage solutions (may include databases, key-value stores, blob stores, etc.)

Skillsets required

1. Full-stack PHP Developer
2. Backend in Core PHP with API integration experience
3.  Must have good US experience
4. HTML5
5. CSS3
6. Angular JavaScript
7. Oops

• 5-7+ years of commercial Java development experience
• Experience with well known Open Source frameworks/libraries, like Spring Boot
• Work experience with Docker
• Microservice experience
• Experience with AWS like ECS, Lambda, SQS, RDS, Kinesis streams
• Familiar with iterative development
• Upper-intermediate level of English
• Solid understanding of communication and network protocols (TCP/IP, HTTP).
• At ease with Unix/Linux
• Excellent analytical and debugging skills
• Familiar with both SQL and noSQL databases (MySQL, DynamoDB, Memcached, Redis)
• Practical experience with scaling applications to big user numbers is a plus
• Experience with other programming languages is a plus.