Backend Engineer

Key Responsibilities

• Design, develop, and maintain scalable backend applications using Java and Spring Boot.
• Develop and maintain RESTful APIs following best practices.
• Implement API versioning strategies to support backward compatibility.
• Create and maintain API documentation using Swagger/OpenAPI.
• Implement Spring Transaction Management to ensure data integrity
• Use Spring Data JPA for database interactions and ORM mapping
• Write efficient SQL queries and optimize database performance
• Implement CQRS (Command Query Responsibility Segregation) where applicable.
• Develop systems based on event-driven architecture patterns.
• Write unit tests using JUnit and Mockito.
• Build and manage projects using Maven or Gradle build scripts.
• Use AI coding assistants such as Gemini Code Assist or similar tools to improve development efficiency.
• Participate in code reviews, design discussions, and architecture decisions.
• Collaborate with frontend teams, DevOps engineers, and product stakeholders.
• Strong problem-solving and debugging abilities
• Ability to design highly scalable backend systems
• Experience working in Agile/Scrum environments
• Good communication and collaboration skills
• Strong code quality and clean architecture mindset

Optional / Good to Have Skills

• Experience with Docker
• Knowledge of Kubernetes
• Experience with GraphQL API development
• Experience with cloud platforms (GCP / AWS / Azure)

Candidates from Supply Chain , Retail preferred

WHAT YOU'LL WORK ON

• Build and scale backend services using Node.js & Express
• Architect and optimize MongoDB schemas for performance
• Contribute to frontend features with Next.js & React
• Debug production issues, optimize API latency & CI/CD pipelines
• Integrate MathJax (LaTeX rendering) & VdoCipher (secure video)

WHAT WE'RE LOOKING FOR

• Strong DSA fundamentals — logical thinking over competitive coding
• Deep JavaScript/TypeScript knowledge: Closures, Promises, Event Loop
• 1–2 original projects (no To-Do apps or tutorial clones)
• Ability to independently pick up Docker, Redis, or AWS
• Ownership mindset — ensure it works in production, not just locally

BONUS POINTS

• Docker / containerization basics
• Real-world AWS experimentation (EC2, S3, Lambda)
• Active GitHub profile: open-source contributions or unique projects

AI Usage Policy:

We encourage AI tools (Cursor, Copilot, GPT-4) as force multipliers — but you must own your code, explain rade-offs, and debug without solely relying on AI.

HOW TO APPLY

• Share your GitHub profile link
• Include live demo links to your best, most original projects

We value what you've built far more than what's on your resume.

Strong Backend Engineer Profiles

Mandatory (Experience 1) – Must have 2+ years of hands-on Backend Engineering experience building production-grade systems in a B2B SaaS or product environment

Mandatory (Experience 2) – Must have strong backend development experience using at least one backend framework such as FastAPI / Django (Python), Spring (Java), or Express (Node.js)

Mandatory (Experience 3) – Must have a solid understanding of backend fundamentals, including API development, service-oriented architecture, data structures, algorithms, and clean coding practices

Mandatory (Experience 4) – Must have strong experience working with databases (SQL and/or NoSQL), including efficient data modeling and query optimization

Mandatory (Experience 5) – Must have experience designing, building, and maintaining APIs and backend services, including integrations with external systems (CRMs, payment gateways, ERPs, data platforms, etc.)

Mandatory (Experience 6) – Must have experience working in cloud-based environments (AWS / GCP / Azure) and be familiar with Git-based collaborative development workflows

Mandatory (Domain) – Experience with financial systems, billing platforms, fintech applications, or SaaS revenue-related workflows is highly preferred

Mandatory (Domain) – Experience with financial systems, billing platforms, or fintech applications is highly preferred (fintech background is a strong plus)

Mandatory (Company) – Must have worked in product companies / startups, preferably Series A to Series D

Preferred

Preferred (Education) – Candidates from Tier - 1 engineering institutes (IITs, BITS are highly preferred)

We’re seeking a Back-End Developer with hands-on experience in Node.js or any other modern backend framework. You’ll be responsible for building robust, scalable APIs and server-side logic powering Zilo’s high-velocity quick commerce platform.

Key Responsibilities

Develop, maintain, and optimize back-end applications and APIs.

Work on microservices, API integrations, and data modeling.

Ensure system scalability, reliability, and performance under high traffic.

Collaborate with front-end and mobile developers for seamless API integration.

Implement best practices in code quality, security, and database design.

Troubleshoot production issues and support deployment cycles.

Technical Skills Required

Strong proficiency in Node.js, Express.js, or similar backend frameworks.

Experience in MongoDB, MySQL, or PostgreSQL.

Understanding of RESTful APIs, authentication (JWT/OAuth), and middleware.

Familiarity with AWS, Docker, or other deployment environments.

Hands-on experience with Git and CI/CD pipelines.

Knowledge of other programming languages like Python, Java, or Go is an added advantage.

We are seeking an experienced Senior Backend Engineer to join our passionate team. If you have a strong background in backend development, a track record of delivering scalable and reliable solutions, and are eager to contribute to complex projects, we would love to hear from you.

Responsibilities:

• Design and develop robust, high-performance backend solutions using Python and related technologies.
• Lead the architecture and design discussions for major backend components and services.
• Collaborate closely with cross-functional teams to gather and analyze software requirements.
• Mentor and guide junior and mid-level engineers, fostering their technical growth.
• Review code and provide constructive feedback to ensure code quality and adherence to best practices.
• Identify and address performance bottlenecks, scalability challenges, and technical issues.
• Participate in sprint planning, task estimation, and agile development processes.
• Keep up-to-date with industry trends, tools, and best practices to continuously improve our backend systems.
• Drive the adoption of coding standards, design patterns, and engineering best practices.
• Collaborate with frontend engineers to ensure seamless integration between frontend and backend components.

Requirements:

• Bachelor's degree in Computer Science, Engineering, or a related field (or equivalent experience).
• Minimum of 4 years of professional experience in backend development.
• Strong proficiency in Python and backend frameworks like Django and Flask.
• In-depth knowledge of database systems, both relational (MySQL) and NoSQL (MongoDB, etc. ).
• Proven track record of designing and developing scalable and maintainable backend services.
• Experience with RESTful API design and best practices.
• Solid understanding of software architecture, design principles, and software development lifecycle.
• Previous experience leading or mentoring engineers is a strong plus.
• Strong problem-solving skills and a proactive attitude towards challenges.
• Excellent communication skills, both verbal and written.
• Familiarity with cloud platforms (e. g., AWS, Azure, GCP) and containerization (Docker) is a plus.

Role / Designation : Python Developer

Location: Bangalore, India

Skills : Certification: AI900, AZ900 Technical or Key Skills: Primary Skills Python, Flask, Web development. Knowledge on Azure Cloud, Application development, API development

Profile: IT Professional with 6 +years of experience in 

• Hands on experience Python libraries such as Pandas, Numpy , OpenPyxl 

• Hands on experience of Python libraries with multiple document types (excel, csv, pdf and images) 

• Working with huge data sets, data analysis and provide ETL and EDA analysis reports.

 • 5+ years’ experience in any of the programming languages like Python(mandatory), Java and C/C++.

 • Must have experience in Azure Paas, Iaas services like Azure function app, Kubernetes services, storage account, keyvault , etc 

• Experience with DB such as SQL,NoSQL 

• Develop methodologies for the data analysis, data extraction, data transformations, preprocessing of data. 

• Experience in deploying applications, packages in Azure environment. 

• Writing scalable code using Python programming language.

 • Testing and debugging applications.

 • Developing back-end components.

 • Integrating user-facing elements using server-side logic. 

• Excellent problem solving/analytical skills and complex troubleshooting methods.

 • Ability to work through ambiguous situations.

 • Excellent presentation, verbal, and written communication skills. Education: BE/BTech/BSc 

Certification: AI900, AZ900 Technical or Key Skills: Primary Skills Python, Flask, Web development. Knowledge on Azure Cloud, Application development, API development

Desired Candidate Profile

Requirements:

• Experience in system automation development
• Good proficiency in the following coding languages: Python, C#, AutoIT, Batch scripting, Shell scripting
• Strong knowledge in OOPS
• Worked on REST and automation of API requests
• Worked on Loggers and Config Parsers
• Knowledge of Power shell commands, wmic commands and Registry Editor
• Worked on test deployment frameworks like Jenkins
• Experience in configuring and building jobs using Shell/Bash/Python
• Hands-on experience with Tools like :
• Scripting: Python, Visual Studio
• Configuration files: INI and JSON
• Operating System: Windows, Linux
• Source code management: GIT and Gerrit
• CI/CD: Jenkins
• Ticketing and Management: JIRA, ServiceNow, Confluence
• Good Communication skill
• Good Analytical and Problem-solving skills