
Job Title: Backend Engineer – Python / Golang / Rust
Location: Bangalore, India
Experience Required: Minimum 2–3 years
About the Role
We are looking for a passionate Backend Engineer to join our growing engineering team. The ideal candidate should have hands-on experience in building enterprise-grade, scalable backend systems using microservices architecture. You will work closely with product, frontend, and DevOps teams to design, develop, and optimize robust backend solutions that can handle high traffic and ensure system reliability.
Key Responsibilities
• Design, develop, and maintain scalable backend services and APIs.
• Architect and implement microservices-based systems ensuring modularity and resilience.
• Optimize application performance, database queries, and service scalability.
• Collaborate with frontend engineers, product managers, and DevOps teams for seamless delivery.
• Implement security best practices and ensure data protection compliance.
• Write and maintain unit tests, integration tests, and documentation.
• Participate in code reviews, technical discussions, and architecture design sessions.
• Monitor, debug, and improve system performance in production environments.
Required Skills & Experience
• Programming Expertise:
• Advanced proficiency in Python (Django, FastAPI, or Flask), OR
• Strong experience in Golang or Rust for backend development.
• Microservices Architecture: Hands-on experience in designing and maintaining distributed systems.
• Database Management: Expertise in PostgreSQL, MySQL, MongoDB, including schema design and optimization.
• API Development: Strong experience in RESTful APIs and GraphQL.
• Cloud Platforms: Proficiency with AWS, GCP, or Azure for deployment and scaling.
• Containerization & Orchestration: Solid knowledge of Docker and Kubernetes.
• Messaging & Caching: Experience with Redis, RabbitMQ, Kafka, and caching strategies (Redis, Memcached).
• Version Control: Strong Git workflows and collaboration in team environments.
• Familiarity with CI/CD pipelines, DevOps practices, and cloud-native deployments.
• Proven experience working on production-grade, high-traffic applications.
Preferred Qualifications
• Understanding of software architecture patterns (event-driven, CQRS, hexagonal, etc.).
• Experience with Agile/Scrum methodologies.
• Contributions to open-source projects or strong personal backend projects.
• Experience with observability tools (Prometheus, Grafana, ELK, Jaeger).
Why Join Us?
• Work on cutting-edge backend systems that power enterprise-grade applications.
• Opportunity to learn and grow with a fast-paced engineering team.
• Exposure to cloud-native, microservices-based architectures.
• Collaborative culture that values innovation, ownership, and technical excellence.

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You will design, develop, and maintain enterprise-grade applications that power our internal and external platforms. You’ll work closely with product and data teams to deliver reliable, scalable, and secure business applications.
Key Responsibilities
- Design, code, and maintain applications using C# and .NET frameworks.
- Develop backend components, APIs, and services integrated with SQL Server.
- Deploy, host, and manage web applications using IIS.
- Collaborate with UI teams to connect front- and backend modules.
- Ensure code quality through unit testing, peer reviews, and automation.
- Monitor application performance, troubleshoot issues, and implement optimizations.
Required Skills
- Strong expertise in C#, ASP. NET, and WPF.
- Proficiency in SQL Server, including stored procedures and optimization.
- Experience managing deployments on IIS environments.
- Understanding of object-oriented principles, design patterns, and SDLC.
- Familiarity with Agile, Git, and CI/CD workflows.
Good to Have
- Knowledge of . NET Core / . NET 6+.
- Experience with RESTful APIs, microservices, or Azure Cloud.
- Exposure to DevOps practices and performance tuning.
· Design, develop, and implement AI/ML models and algorithms.
· Focus on building Proof of Concept (POC) applications to demonstrate the feasibility and value of AI solutions.
· Write clean, efficient, and well-documented code.
· Collaborate with data engineers to ensure data quality and availability for model training and evaluation.
· Work closely with senior team members to understand project requirements and contribute to technical solutions.
· Troubleshoot and debug AI/ML models and applications.
· Stay up-to-date with the latest advancements in AI/ML.
· Utilize machine learning frameworks (e.g., TensorFlow, PyTorch, Scikit-learn) to develop and deploy models.
· Develop and deploy AI solutions on Google Cloud Platform (GCP).
· Implement data preprocessing and feature engineering techniques using libraries like Pandas and NumPy.
· Utilize Vertex AI for model training, deployment, and management.
· Integrate and leverage Google Gemini for specific AI functionalities.
Qualifications:
· Bachelor’s degree in computer science, Artificial Intelligence, or a related field.
· 3+ years of experience in developing and implementing AI/ML models.
· Strong programming skills in Python.
· Experience with machine learning frameworks such as TensorFlow, PyTorch, or Scikit-learn.
· Good understanding of machine learning concepts and techniques.
· Ability to work independently and as part of a team.
· Strong problem-solving skills.
· Good communication skills.
· Experience with Google Cloud Platform (GCP) is preferred.
· Familiarity with Vertex AI is a plus.
We are looking for experienced PHP / Senior PHP Developer to join our web development projects. As a PHP Developer, you will play a key role in writing clean and efficient PHP code, following industry best practices and collaborating with the creative team. Your expertise and problem-solving skills will contribute to the success of our software development process.
Responsibilities:
- Write backend code and develop efficient PHP modules.
- Solve complex performance problems and address architectural issues.
- Integrate and combine data storage solutions.
- Contribute to all phases of the software development lifecycle.
- Troubleshoot and resolve issues as they arise.
- Collaborate effectively across different time zones using tools like GitHub, video conferences, and documents.
- Familiarity with common third-party APIs such as Google, Facebook, eBay, etc.
- Utilize version control tools and work with relational databases.
- Proficiency in HTML, CSS, JavaScript, and AJAX.
- Demonstrate strong problem-solving skills and attention to detail.
- Display a keen interest in learning new tools, languages, and workflows.
Requirements:
- B.Tech / MCA/ M.Tech/ Msc IT.
- Minimum of 5+ years of experience.
- Wordpress experience is a plus point
- Strong knowledge of PHP programming language and related frameworks such as Laravel, Symfony, or CodeIgniter.
- Proficiency in HTML, CSS, JavaScript, and jQuery.
- Experience working with databases like MySQL, PostgreSQL, or MongoDB.
- Familiarity with version control systems, preferably Git.
- Understanding of object-oriented programming (OOP) principles.
- Strong problem-solving skills and ability to work independently as well as in a team environment.
Good to have Winform experience
Looking for Immediate joiners.
About OJ Commerce:
OJ Commerce is a fast-growing, profitable online retailer based in Florida, USA with a full-fledged India office based in Chennai driven by a sophisticated, data-driven system to run the operations with virtually no human intervention. We strive to be the best-in-class ecommerce company delivering exceptional value to customers by leveraging technology, innovation and brand-partnerships to provide a seamless & enjoyable shopping of high-quality products at the best prices to our customers.
Responsibilities:
Work with business-stakeholders to understand requirements, prototype, build and deploy it.
CRUD the backend code you own keeping maintenance, performance and security in mind.
Keep up breast of latest technologies and its ecosystem and adopt ones that aid safe product delivery at speed.
Automate the boring and mundane stuff for you prefer to be productive than being busy.
We are flat. Be responsible for professional growth of self and the team.
- Tune application for performance.
- Take initiatives and manage change to work towards business goals at speed without compromising safety.
- Coach full-stack developers on backend skills.
- Provides problem resolution support, specific to application issues, identifies and resolves problems in application software, determines symptoms and ensures accurate problem definition
Develop functional, architectural and other documentation as required for productive functioning of teams.
- Be the brand ambassador for OJ Commerce by speaking at meetups, conferences, etc.
- We are fluid. Be ready for changing dynamics in responsibilities from time to time. Exciting isn't?
- Take the lead in digital transformation of legacy applications.
What you need to shine?
- You have the prior experience in modernising legacy applications.
- You are a passionate hands-on developer with deep experience in building enterprise grade software in Microsoft ASP.NET Core, ASP.NET MVC, Web API, SOA, Micro-Services and RESTful Services with knowledge of SQL Server database.
- You have the ability to see and work on the big picture (Application Architecture) and devilish details (Complex Code).
- Strong experience in developing web applications using C#, VB.Net, .NET, LINQ, Net Framework 4.0, MVC 3/4/5, ASP.NET Web API, .Net Core etc.
- You are Cloud savvy, preferably Google Cloud.
- You have rich experience in Object-Oriented Programming (OOP) with good knowledge of practical design-patterns and its applications.
Hands-on experience in building SOA or Micro-services preferably on .NET Core.
Proven Architectural skills with high standards in Code quality
Knowledge of ReactJS/Typescript would be added advantage.
Practical experience in Agile development methodologies of using CI/CD.
Extreme Programming (TDD) experience is sought after by us.
What we Offer
- Greenfield opportunity to transform legacy backend applications to latest technology stack.
- Fast-paced start-up environment: This is not for the faint hearted; you need grit and passion as much as you need the core skills.
- Work in an interdisciplinary team where learning from one another and developing solutions cross-functionally is a key part of our culture.
- Golden opportunity to make history by making big business impact.
- Competitive salary to take good care of self and family.
- Insurance Benefits: Medical and Accident cover.
- Flexible Working Hours
● Designing, code reviews, POCs on latest cutting-edge technologies building,
deploying highly scalable and robust cloud based intelligent solutions.
● Architect & Design, code high performance and scalable solutions that meet the needs of millions of customers.
● Implement cutting-edge models and algorithms that operate on massive amounts of data.
● Working on the REST framework
● Working on session-based and token-based authentication, Working on Celery
● Handling the payment gateway
● Work with Multi-threading, Data Structures, Algorithm, Design Patterns and develop robust high-performance and scalable applications.
● Writing scalable code using Python programming language.
● Developing back-end components.
- Writing reusable, testable, and efficient code
- Design and implementation of low-latency, high-availability, and performant applications
- Analysis, Automate and backtest the existing strategies
- Employing statistical applications to visualize and/or transform the distribution or dispersion profile of individual signals and support the mathematical formulation of multiple signal algorithms to rank securities for investment.
- Candidates should have strong coding skills in Python (NumPy, Pandas, matplotlib, Zipline) /Django/Java script etc.
- Basic understanding of front-end technologies, such as HTML5, and CSS3
- Must have Database knowledge like Open source, PostgreSQL, MySQL/SQ
Learnability, teamwork and flexibility are important traits we look for.
Python
SQL
HTML
Linux
AJAX/ JSSkills
Excellent Communication Skills
Have to be a quick learner
Complete project on time








