Sr. Backend Egineer

Job Title: PHP Developer

Company: Aertrip

Location: Ghitorni, Delhi

Experience: Minimum 3 Years

Employment Type: Full-time

About Aertrip:

Aertrip is a fast-growing travel technology company providing seamless flight, hotel, and holiday booking experiences. We focus on delivering innovative, scalable, and efficient digital travel solutions to enhance customer satisfaction and business growth.

About the Role:

We are seeking an experienced PHP Developer to join our dynamic technology team. The ideal candidate should have strong command over PHP and related frameworks (especially CodeIgniter/Laravel), a passion for clean coding, and experience in building and maintaining scalable web applications.

Key Responsibilities:

• Develop, test, and maintain dynamic web applications using PHP and frameworks (CodeIgniter/Laravel).
• Write clean, efficient, and well-documented code.
• Collaborate with front-end developers, designers, and product managers to deliver high-quality solutions.
• Build and maintain RESTful APIs and integrate third-party services.
• Optimize applications for performance, scalability, and security.
• Troubleshoot, debug, and resolve software issues promptly.
• Participate in code reviews and contribute to improving coding standards and best practices.

Required Skills:

• Strong knowledge of Core PHP and Object-Oriented Programming (OOP) concepts.
• Hands-on experience with CodeIgniter (mandatory); knowledge of Laravel is a plus.
• Good understanding of MySQL, database design, and query optimization.
• Experience working with RESTful APIs and third-party integrations.
• Proficiency in HTML, CSS, JavaScript, and jQuery.
• Familiarity with Git/GitHub or other version control systems.
• Strong analytical and problem-solving skills.
• Ability to work independently in a fast-paced environment.

Qualifications:

• Bachelor’s degree in Computer Science, Information Technology, or a related field.
• Minimum 3 years of professional experience in PHP development.
• Experience in both new project development and maintenance of existing systems.

What You’ll Do

• Build & tune models: embeddings, transformers, retrieval pipelines, evaluation frameworks.
• Architect Python services (FastAPI/Flask) to embed ML/LLM workflows end-to-end.
• Translate AI research into production features for data extraction, document reasoning, and risk analytics.
• Own the full user flow: back-end → front-end (React/TS) → CI/CD on Azure & Docker.
• Leverage AI coding tools (Copilot, Cursor, Jules) to meet our 1 dev = 4 devs productivity bar.

Core Tech Stack:

• Primary:

Python · FastAPI/Flask · Pandas · SQL/NoSQL · Hugging Face · LangChain/RAG · REST/GraphQL · Azure · Docker

• Bonus:

React.js · Vector Databases · Kubernetes

You Bring:

• Proven track record shipping Python features and training/serving ML or LLM models.
• Comfort reading research papers/blogs, prototyping ideas, and measuring model performance.
• 360° product mindset: tests, reviews, secure code, quick iterations.
• Strong ownership and output focus — impact beats years of experience.

Why Join Intain?

• Small, expert team where your code and models hit production fast.
• Work on real-world AI problems powering billions in structured-finance transactions.
• Compensation & ESOPs tied directly to the value you ship.

📍 About Us

Intain is transforming structured finance using AI — from data ingestion to risk analytics. Our platform, powered by IntainAI and Ida, helps institutions manage and scale transactions seamlessly.

We are looking for a passionate and skilled Node.js Developer to join our dynamic team. If you're excited about building scalable and efficient backend applications using modern technologies, we’d love to hear from you!

Responsibilities

Develop and maintain server-side components using Node.js

Design and build scalable RESTful APIs

Ensure high performance and responsiveness of applications

Implement security and data protection measures

Collaborate with team members to define and deliver high-quality software

Write unit and integration tests to ensure software quality

Required Skills

✅ Strong proficiency in JavaScript

✅ Good understanding of Node.js and Express

✅ Experience with NoSQL databases, especially MongoDB

✅ Familiarity with Git and version control workflows

✅ Ability to write reusable, testable, and efficient code

✅ Experience with JWT and modern authorization mechanisms

✅ Knowledge of security and data protection best practices

✅ Strong analytical and problem-solving skills

The tech stack looks like the below (expect this to change as we scale):

1. Typescript for APIs (REST and GraphQL)
2. Kafka, Spark, and data warehouses for ML pipelines (spark on python/scala)
3. Solidity + hardhat for smart contracts (in the future, rust, go and move)
4. AWS & Terraform
5. Full nodes

You can expect to do some or all of the following:

1. Read through protocols’ whitepapers and smart contracts to derive metrics and analyze risks
2. Architect the backend for APIs, async jobs, and blockchain integration
3. Build clean, concise APIs for customer integration, along with the documentation
4. Setup, run and maintain full and archive nodes across different chains
5. Integrate with multiple partners like exchanges and custody providers
6. Fool-proof security across the stack - encryption, hashing, privacy, VPC, etc.
7. Infrastructure as code - build terraform scripts and ensure easy replication of the infra across different regions
8. Research the top DeFi protocols to uncover better insights for our customers and evaluate their risk profiles, security, and historical returns
9. Manage production deployments, logging, and monitoring

We expect you to be fairly comfortable with working with both web3 and web2 stacks. We do not expect that you have web3 experience on day 1, but you should be willing to wear multiple hats, learn things quickly and move fast.

1. Generalist, a solid engineer who can learn things on your own and have an eye for clean, tested, and well-documented code
2. We don’t look at the number of years of work experience as a criterion, but rather see what you have done in your life so far (side projects, open-source contributions, blogs, etc.). We don’t care about degrees, the institutions you went to, or the companies you worked for before. We are open to talking as long as you have good judgment, great clarity, align with our values and have a strong track record of thoughtful work
3. Understand the fundamentals of building and integrating APIs and secure systems. Bonus if you know a bit about blockchains and protocols
4. You can be strong on the backend, front-end, or can dabble everywhere. We want you to play to your strengths and will provide enough opportunities to learn and do things outside of your comfort zone

Pay and benefits We offer a solid, competitive package (including early-stage equity) that is location agnostic. We give you the flexibility to choose the split between cash and equity.

About the Company:

Alyke, recognized as India's first friendship app, is revolutionizing the way people find friends online through its innovative matching algorithm. Alyke has quickly gained traction, surpassing 1 million users. This platform uniquely connects individuals based on shared interests and proximity, and stands out for its commitment to creating a secure environment that encourages users to express themselves freely. Joining Alyke offers the chance to be part of an innovative team dedicated to reshaping the landscape of social connections

Role Overview:

As a Senior Backend Developer, you will play a crucial role in the design, development, and optimization of our backend systems. You will be instrumental in building scalable, high-performance applications that support our business's needs. This role demands a deep understanding of backend technologies, database design, cloud infrastructure, and the ability to integrate a wide range of services and APIs.

Key Responsibilities

• Design and implement scalable, secure, and robust backend services and APIs.
• Lead the development of microservices architecture, ensuring optimal performance and scalability.
• Oversee the integration of third-party services and external APIs, including notification services like FCM.
• Develop and manage database schemas, optimizing for performance and scalability using MongoDB and Redis.
• Implement real-time data processing mechanisms for live updates and push notifications, utilizing technologies like Firebase.
• Manage cloud infrastructure and serverless functions on platforms such as AWS and GCP, ensuring efficient operations and cost management.
• Ensure the security of backend systems through robust authentication, authorization, data encryption, and adherence to best practices in data security and compliance.
• Work closely with the frontend team to integrate backend services and ensure a seamless user experience.
• Continuously evaluate and adopt new technologies and frameworks to improve the backend infrastructure.
• Mentor junior developers, fostering a culture of learning and growth within the team.

Qualifications

• Bachelor’s degree in Computer Science, Engineering, or a related field.
• 5+ years of experience in backend development, with a strong portfolio of projects demonstrating expertise in NodeJS, ExpressJS, and asynchronous programming.
• Extensive experience with database design, optimization, and management using MongoDB and Redis.
• Proven track record in developing and managing REST APIs.
• Deep understanding of microservices architecture and real-time data processing.
• Solid experience with caching mechanisms and SQS management.
• Comprehensive knowledge of security principles, including authentication, authorization, and data encryption.
• Familiarity with compliance and data protection standards.
• Should have worked on scalable microservices architecture
• Experience with Lambda functions.
• Experience working with firebase
• Should have proven experience in mobile application development
• Should have working experience in sqs
• Have knowledge of elastic cache 
• Experience with cloud-native development and managing cloud infrastructure on AWS or GCP.
• Excellent problem-solving skills, with the ability to lead projects and collaborate effectively with cross-functional teams.
• Strong communication and leadership skills, with a passion for mentoring and driving technical excellence.
• Attach the link of mobile application worked on till date

Why Join Us?

• Opportunity to lead a cutting-edge project impacting users globally.
• Work in an environment that fosters innovation, collaboration, and professional growth.
• Competitive compensation, comprehensive benefits.

We're looking for team players with natural product intuition who can help us build solutions

for our world-class Learning & Assessment platform (edulastic.com).

As a Backend Developer you will be responsible for the server-side of our web applications

and you will work closely with our engineers to ensure the system consistency and improving

user experience.

Role and Responsibilities

• As an experienced backend developer, your primary focus will be the development of all

server-side systems

• A basic understanding of front-end technologies is necessary as well. You will test, secure

and deploy your code

• Knowledge of Node.js is a must along with a server-sideframework
• Strong proficiency in JavaScript
• Writing reusable, testable, and efficient code
• Experience and proficiency integrating with RESTAPIs
• Understanding of scalable computing systems, software architecture, data structures,

and algorithms

• Experience in working with databases such as MongoDB, Redis, Elasticsearch, etc.
• Should be willing to work in a very fluid startup environment and take complete ownership of

the assigned responsibility

Skills Required:

• At least 2 years of experience developing Backends using NodeJS should be well versed

with its asynchronous nature & event loop, and know its quirks and workarounds.

• Good knowledge of MongoDB or any other NoSQL

Database.

• Good knowledge of Redis, its data types, and their use cases.
• Experience developing and deploying REST

APIs.

• Good knowledge of Unit Testing and available Test Frameworks.
• Should be a fast learner and a go-getter without any fear of trying out new things Preferences.

Position: PHP / MYSQL Developer & NodeJS / MongoDB Developer 

  -  The selected candidate is required to work on Core PHP or NodeJS/MongoDB. 

  -   Building web services for Mobile applications. 

   Selected candidate will be a part of product development team and have to manage both maintenance and enhancement projects. 

As a PHP Developer: 

1. You love an Agile work culture and deliver as per plan  
2. You're a lively person who's passionate on what you do  
3. You're a nonstop learner and enjoy sharing the learning to your juniors 
4. You're socially connected with the team and helping others team voluntarily. 
5. You're tech- expertise and effective in tools operation and automate the regular process  
6. You're someone who loves problem- working by seeing the occasion in every challenge and you enjoy learning from failures  
7. Honestly share your experience, feedback, challenges, learning and emotions for the day in your daily diary. 
8. Think of user needs instead of system needs 

Skills & Expertise we look for: 

1. Hands-on experience in Core PHP and MySQL Database 
2. Design and implement the Restful services. 
3. Familiar with HTML, CSS, jQuery, JavaScript 
4. Good knowledge in front-end frameworks such as Angular JS / React JS 
5. Good knowledge in gathering requirements, creating technical specifications, architecture documents and project planning 
6. Maintain and improve the performance of the applications.  
7. Should good in evaluate and implement new technologies to maximize development efficiency and improve the applications. 
8. Should good in communication skills and ability to work closely with diverse teams in a fast-paced environment. 
9. Should have some experience in integrating projects with third-party vendors 

Responsibilities:

• Execute full lifecycle software development
• Develop, designed well efficient code
• Integrate software components into a fully functional software system
• Fully adaptive to the technology needed for the current project

Requirements:

• Bachelor/ Master degree from good college.
• Strong knowledge of algorithms, data structure
• Understanding object-oriented programming
• Excellent knowledge of PHP, Mysql, SQL. NoSQL, Mongodb
• Ability & Readiness to work with any technology
• Familiarity with software development methodology and release processes.
• Strong problem-solving skills and excellent communication skills.
• He/she should have minimum 3 years working experience on PHP, PHP Frameworks, Ajax, Knowledge on CMS platform like Opencart, payment gateway integration, experience working on portals.