Backend Engineer

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.

About the Role:

We are seeking a highly skilled and passionate Full Stack MERN Developer to join our growing development team. The ideal candidate will be proficient in JavaScript and have experience working with both MongoDB and PostgreSQL databases. As a Full Stack Developer, you will be responsible for designing, developing, and maintaining scalable and performant web applications across our product verticals.

Responsibilities:

• Collaborate with product managers, designers, and other developers to design and develop full-stack web solutions.
• Build responsive, user-friendly interfaces using React.js.
• Develop robust and scalable backend services using Node.js and Express.js.
• Design, implement, and manage databases using MongoDB and PostgreSQL.
• Develop and integrate RESTful APIs and third-party services.
• Ensure cross-platform optimization for mobile responsiveness.
• Write clean, maintainable, and well-documented code.
• Conduct code reviews, unit testing, and performance tuning.
• Troubleshoot, debug, and upgrade existing applications.
• Ensure security and data protection best practices.

Requirements:

• 1-5 years of experience as a Full Stack Developer (preferably MERN stack).
• Proficient in JavaScript, both frontend and backend.
• Strong experience with React.js, Node.js, and Express.js.
• Working knowledge of MongoDB and PostgreSQL.
• Familiarity with version control systems (e.g., Git).
• Understanding of server-side architecture and RESTful APIs.
• Familiarity with cloud platforms (e.g., AWS, or GCP) is an advantage.
• Good understanding of security and performance optimization.

What’s the opportunity?

Are you a backend developer looking to fast-track your learning and growth? Have you looked at world-class products like Asana, Notion, or Airtable, and felt “I wish I were part of the early team that built these products”?

We’re a team that has previously built and rolled out globally successful SaaS products used by tens of thousands of customers. We’re laser-focused on delivering a world-class product again, and looking for an ambitious backend engineer to join our existing team of 9 engineers. 

If it excites you to think of a fast-paced start-up environment, building something big from scratch, breaking down new problems, creating new APIs, working on performance issues, getting hands-on with DevOps initiatives, and showcasing demos of your work every Friday with a happy and passionate team, then this is the right opportunity for you.

Some of the tech problems you get to work on as a backend engineer would be to build the backend for a modern spreadsheet experience from scratch, work on infra as code, write robust code that is fault-tolerant, work on performant code that adheres to SLOs set by the organization.

About you:

● 3- 5 years of experience

● Expertise in the following areas ○ Java ○ HTTP Protocol

● You’ve heard of or worked with some of the following tech stacks/products ○ Spring ○ PostgreSQL ○ Redis ○ Docker ○ Message brokers ○ GitHub

● These non-functional areas are familiar to you ○ Performance ○ Debugging ○ Log management

Nice to have:

● Familiarity with AWS

What’s in it for me?

● Great opportunity: We genuinely care about everyone we hire. You’ll learn new things and grow no matter how experienced you are; you will be working with founders who have more than three decades of collective experience in building significant B2B SaaS startups.

● Great team: Work with a world-class, high-velocity team that truly embodies the values of empathy, curiosity, and customer-centricity. Check out the MTT(Meet The Team) videos on our LinkedIn.

● Great culture: An open, fun, and exciting startup culture that empowers its people to champion big problems with the freedom to think and innovate.

● Growth: You could easily and quickly transition into other roles you might like.

● Impact: You get to be part of a global, passionate team in a fast-paced and growth-oriented environment. The team has a work philosophy of being high on ambition, ownership, and a bias for action.

● Monetary rewards and benefits: Competitive stipend, flexible leave policy, and more

Job Purpose

We work in the latest technology, and our foundations are data structures, algorithms, solid logical reasoning, and mathematics. We are looking for very strong engineers who love coding, optimizing, and ensuring their code is the most efficient.

You will be involved with hardcore development. If you are an assembler of code or packages from different places to build something, you may not find our team to be the right fit.

You must be someone who can build anything from the ground up. Programming language should not be any barrier for you, as you should be able to pick up any programming language or underlying technology within a week.

Key Areas of Responsibility

Core development. Ready to participate in the designing, brainstorming, and development process. You must give sleepless nights to meet deadlines whenever required.

Desired Candidate Profile

Essential Skills 

• Reliable, Accountable, and Trustworthy
• Ability to understand software requirements based on a wireframe/program specification
• Familiarity with GoLang / PHP / Python / Java / C / C++ / Linux Shell and Scripting / HTML / CSS / JS / Node.js is a plus
• Effective communication skills to ensure smooth coordination of tasks with the Team Leader.
• Knowledge of MongoDB, MySQL, and PL/SQL is a plus
• Familiarity with ML, TensorFlow, and Keras is a plus
• Knowledge of web servers such as Apache, NGNIX, and the HTTP protocol is a plus.
• Knowledge of multi-process, threads, memory, and filesystem on Linux is desirable.
• Must Solve The Following

To consider you for the current opening, please make sure to understand the following question and solve it. A simple program in any programing language would do. If you cannot solve this, please do not apply.

Write a function foo(x) where foo(foo(x)) = -x (assume x to be an integer, and foo(x) has to be always real), any programming language would do. Before submitting the answers, please verify that the output of foo(foo(10)) should be -10 and foo(foo(-10)) should be 10.

Kunato.AI is a NY-based IT firm helping to create the first marketplace that monetizes digital content on the internet (i-commerce). We have a patented technology - a quantitative deep tech system that predicts, assigns and updates the value of any digital content in real-time without the need for human intervention.

Our system has the potential to create a new digital goods marketplace that will revolutionize the way we consume, create and search for content on the Internet.

We are at an exciting juncture of our growth journey and are looking for Software Developers to join us in making this vision a reality. We are looking for Nodejs Developers (with 2-6years of experience) to join our cutting-edge development team as it grows. The candidate must be comfortable working in an agile environment and can take the lead when necessary. If you are keen on being part of an early-stage start-up with an emphasis on innovation and best development practices, we are the right place for you!

What will you be working on?

• We are looking for a Node.js Developer responsible for managing 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 be responsible for developing the product as per the product specification defined by the product managers
• Perform research on the best methods of implementing the requirements. Author and curate technical documentation to support delivery, maintenance, and adoption
• Work with programmers, engineers, and management heads to identify process improvement opportunities, propose system modifications, and devise governance strategies to optimize the overall performance
• Design and develop automated deployment and maintenance mechanisms
• Solving development challenges and making architectural decisions by understanding the larger picture of the projects goals
• Confidently communicating and collaborating with your fellow developers in a remote team environment.
• Maintain high standards of software quality within the team by establishing good coding practices.

What are we looking for?

• Must have experience in Nodejs.
• Have excellent knowledge of different data structures and algorithms
• Working knowledge of any other programming languages is good to have
• Experience with, or understanding of, Kafka or Redis, Cloud infrastructure services, Docker is an added advantage
• Experience with SQL or NoSQL databases, MySQL, MongoDB, Elasticsearch, etc.
• Experience in Backend and APIs development
• Experience in analyzing and optimizing the platform’s performance

We look forward to hear from you:)

The successful candidate will be a pro-active problem solver, quick learner and will provide technical leadership and solution ownership. This candidate should have a passion for technology and should be looked at as a “technical guru” who champions their design, coding and implementation strengths and prides themselves on their development expertise. The successful candidate will join a team that develops and integrates enterprise e-commence and e-transaction systems for a diverse client base.

• The successful applicant will be responsible for the technical delivery of all development assignments allocated to him in a timely fashion, while meeting rigorous quality targets.
• Unit testing of code - Working with very large and complex SQL databases
• Troubleshooting through resolution of technical issues and system errors
• Performing testing, documentation, and mentoring/grooming/coaching less technical staff where applicable
• Work with Architects, Project Managers, and other Developers to estimate the level of effort necessary to implement assigned work packages.
• Write efficient, clean, tested code that follows high standards and quality requirements

Specific Skillset Required

Minimum 2-3 Years of strong hands-on experience on:

• PHP, MySQL, JavaScript, CSS, HTML 5, Ajax, JSON
• PHP framework preferably Laravel

Strong Fundamental knowledge required

• Web development experience in Core PHP, Mysql, MVC architecture.
• Computer Science fundamentals in object-oriented design, data structures
• Implementation of Service Integration of an on Demand Web Application
• Proficient understanding of code versioning tools, such as (Git / SVN / Bitbucket)
• Experience in developing cross-browser-compatible web applications in HTML, CSS
• Experience developing and deploying solutions/applications across various environments (on-premises and cloud (AWS, Azure, Alibaba, GCP etc.)

Job type: Permanent with ACL Digital

Client: Concentrix

Required skills:

• MySQL, or Postgres
• Linux systems
• Agile Methodologies
• Good communication skills