Senior Backend Engineer

This Is NOT a Typical Java Role If your experience is mostly CRUD APIs, controller wiring, or shallow service layers — this role is not for you. We are looking for a top tier backend engineer who thrives on: 

* Designing complex algorithms 

* Building high-performance, memory-efficient systems 

* Owning deep backend logic that actually moves the needle 

You will work close to the core engine of the product, not the edges.

What You’ll Be Trusted With 

* Architect and build backend systems that must perform under load 

* Design and implement custom algorithms for real-world, non-trivial problems 

* Solve performance bottlenecks involving CPU, memory, I/O, and concurrency 

* Build backend services where latency, throughput, and correctness matter 

* Own document & PDF processing pipelines end-to-end:     

-Composition     

-Rendering     

-Optimization     

- High-volume generation 

* Make hard technical decisions and stand by them

Non-Negotiable Skills 

* Exceptional Java expertise (Core Java, Spring Boot, Java 8+) 

* Strong command over:     

• Data structures & algorithms 
• Multithreading & concurrency models     
• JVM internals & memory management 

* Proven experience building custom algorithms (this will be evaluated) 

* Deep backend engineering experience with Spring / Spring Boot 

* Strong understanding of:     

• API design principles     
• Fault tolerance & resilience     
•  Performance tuning & profiling 

* Ability to reason about time complexity, space complexity, and trade-offs 

* Strong database fundamentals (query optimization, indexing, transactions) 

* Experience with message brokers (ActiveMQ, Kafka, RabbitMQ) 

* Exposure to Kubernetes-based deployments or large-scale microservices 

Interview Focus (Be Prepared) 

* Algorithm design & problem solving 

* Deep Java fundamentals 

* System design discussions (backend-heavy) 

* Performance tuning scenarios 

* Real-world debugging and optimization challenges

Position: Lead Backend Engineer

Location: Remote

Experience: 10+ Years

Budget: 1.7 LPM

Employment Type: [Contract]

Required Skills & Qualifications:

• 10+ years of proven backend engineering experience.
• Strong proficiency in Python.
• Expertise in SQL (Postgres) and database optimization.
• Hands-on experience with OpenAI APIs.
• Strong command of FastAPI and microservices architecture.
• Solid knowledge of debugging, troubleshooting, and performance tuning.

Nice to Have:

• Experience with Agentic Systems or ability to quickly adopt them.
• Exposure to modern CI/CD pipelines, containerization (Docker/Kubernetes), and cloud platforms (AWS, Azure, or GCP).

About Hubler: 

Hubler is a one-of-a-kind SaaS product company helping enterprises manage, digitize, automate and optimize business processes with ease. We enable the development of customizable digital business applications with simple, user-friendly automation solutions. Hubler’s no-code, DIY platform lets enterprises build powerful apps to automate their unique business processes. Build on iOS, Android and Web simultaneously and provide the software that fits like a glove across teams. Founded in 2016, the company has led to the successful digital transformation of Over 50 SME and Large customers across varied industry verticals and functions.

Backend Developer (Django + MongoDB) Bangalore Role and Responsibilities We're looking for a hands-on Sr. Backend Developer to work on the design and development of our backend services which are written in Python/Django.

Responsibilities

● Developing restful APIs using the Python Django framework.

● Design and implementation of low-latency, high-availability, and performant applications.

● Interface with business to define requirements, and deliverables, and provide the necessary engineering expertise & support to ensure on-time delivery.

● Work closely with front-end team, Android team, iOS team, Designers and operations to ease integration skills.

● Expert in Python, with knowledge of Django.

● Familiarity with MongoDB, Redis, and Celery.

● Experience with web paradigms such as RESTful APIs, and Test-driven Development (TDD).

● Understanding of the threading limitations of Python, and multi-process architecture.

● Knowledge of user authentication and authorisation between multiple systems, servers, and environments

● Proficient understanding of Git code versioning tool.

● Proven ability to work in a fast-paced, agile and in ownership and results-oriented culture

● Experience with architecting systems for AWS is compulsory.

Qualifications

● 5+ years of experience building web-scale, highly available backends for web and/or mobile.

● 5+ years of experience with Django, MongoDB, Celery, and Django REST Framework.

● Strong problem-solving skills.

Job Roles & Responsiblities:

• 4+ years of experience in .NET Core, C#, EF Core, SQL Server, Rest API, MVC, Webform
• Good to have exposure in Azure & Azure DevOps
• Strong Experience in Micro Services Architecture.
• Cloud Azure
• Azure Kubernetes
• Knowledge of Docker is advantageous
• SOLID Principles
• Good to have exp in SonarCloud
• Should have team leading experience

• Analyzing website and application requirements.
• Writing back-end code and building efficient PHP modules.
• Developing back-end portals with an optimized database.
• Troubleshooting application and code issues.
• Integrating data storage solutions.
• Responding to integration requests from front-end developers.
• Finalizing back-end features and testing web applications.
• Updating and altering application features to enhance performance.

PHP Developer Requirements:

• Bachelor’s degree in computer science or a similar field.
• Knowledge of PHP web frameworks including Yii, Laravel, and CodeIgniter.
• Knowledge of front-end technologies including CSS3, JavaScript, and HTML5.
• Understanding of object-oriented PHP programming.
• Previous experience creating scalable applications.
• Proficient with code versioning tools including Git, Mercurial, CVS, and SVN.
• Familiarity with SQL/NoSQL databases.
• Ability to project manage.
• Good problem-solving skills.

Work remotely / Work From Home with BigStep Technologies throughout your tenure.

Desired candidates must have 3-6 years experience as NodeJs Developer.

Roles and responsibilities:

• Responsible for understanding functional and business requirements and translate them into effective code
• Provide support till deployment of code into production.
• Ownership for ensuring code optimization, problem diagnosis, and on-time delivery
• Implement solutions as per the pre-defined framework /guidelines and adherence to processes
• Finding an optimal solution for the problem statement
• Conduct peer code review.

Skills:

• Excellent hands-on experience with Node.Js, Express.Js, JavaScript
• Understanding the nature of asynchronous programming and its quirks and workarounds
• Excellent hands-on experience with MongoDB, Mongo aggregation, MySQL
• Ability to build REST services, Authentications, MVC applications
• Excellent Object Oriented Programming skills and ability to write modular, secure, scalable, and maintainable code
• Experience with Elastic Search, Redis.
• Knowledge about AWS components (S3, EC2, Cloudfront, Redis Clusters, etc.)
• Self-learning abilities are required
• Familiarity with upcoming new technologies is a strong plus

Back End development of websites and applications using PHP,
AJAX and JS and their frameworks to create and integrate
functional web standard projects. Taking ready HTML/CSS files
from front end developers and executing the project based on the
logic and wireframes provided by designers

Solid knowledge of PHP, MySQL, JSON, and XML
● Proven experience building data-driven web
applications
● Experience working with API development
● Familiarity with design patterns such as MVC
● Experience with Open Source PHP CMS such as
WordPress or Drupal or Magento
● Comfortable with data modeling, stored
procedures, and views
● Ability to work closely with front end developers
● Knowledge of JavaScript / jQuery skills / HTML / CSS
● Experience building large, scalable applications
● Experience building custom
content management
systems
● Awareness of current development trends in the
coding and development like Docker, Micro
services and an understanding of how these
technologies can improve and impact projects
● Knowledge of GIT or any other version control
software.

Your Opportunity

• Own and drive business features into tech requirements
• Design & develop large scale real time server side systems
• Quickly create quality prototypes
• Staying updated on emerging technologies
• Ensuring that all deliverables adhere to our world class standards
• Promote coding best practices
• Mentor and develop junior developers in the team

Required Experience:

• 4+ years of relevant experience as described below
• Excellent grasp of Core Java, Multi Threading and OO design patterns
• Experience with Scala, functional, reactive programming and Akka/Play is a plus
• Excellent understanding of data structures and algorithms
• Solid grasp of large scale distributed real time systems
• Prior experience on building a scalable and resilient micro service
• Solid understanding of relational databases, NoSQL databases and Caching systems
• Good understanding of Big Data technologies such as Spark, Hadoop is a plus
• Experience on one of AWS, Azure or GCP

Who you are :

• You have excellent and effective communication and collaborative skills
• You love problem solving
• You stay up to date with the latest technologies and then apply them in real life
• You love paying attention to detail
• You thrive in meeting tight deadlines and prioritising workloads
• Ability to collaborate across multiple functions

Education:

Bachelor’s degree in Engineering or equivalent experience within the field

GlobalShaala aims to build a decentralised learning system for children that enables garnering inspiration for learning from educators and industry leaders alike. A personalised platform that grows with the child and helps him/her to engage in experiences that unravels his/her competences and interests. 

We are building India's first platform where children of K-12 can engage in:

* Destination-based educational experiences, which involves curriculum mapped experiences at global destinations where kids can apply their learning.

* Virtual educational experiences by interacting directly with industry leaders. Children get to discuss the ‘Why?’, ‘How?’ and ‘Where?’ of current classroom topics directly with industry leaders and understand how the fundamentals they are dealing with are being used to solve problems with real world applications.

Qualifications:

- B.Sc/B.Tech in Computer Science or a related field.

- Strong coding, data structures and algorithms.

- 1+ year experience in PHP (Laravel).

- Experience or keen interest to take ownership of code deployment in Linux based servers, Docker, Jenkins.

- Hands-on experience with relational databases like MySQL, Postgres.

Responsibilities:

- Design and develop software for given requirements.

- Involvement in the full software development lifecycle within broadly defined parameters and providing software solutions keeping into consideration the software quality needs.

- Troubleshoot, test and maintain the core product software and databases to ensure strong optimisation and functionality.

- Communicate cross-functionally, collaborate with business teams, engineers to plan, own and deliver solutions on time.