Role and Responsibilities:
- As a 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
- Work experience on Node.js is a must along with a server-side framework like Express.js
- Strong proficiency in JavaScript
- Writing reusable, testable, and efficient code
- Experience and proficiency integrating with REST APIs
- Understanding of scalable computing systems, software architecture, data structures, and algorithms
- Experience in working with databases such as MongoDB, Redis, Elasticsearch, etc.
- AgileScrum development cycle understanding.
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(Must) & any other MySQL Database.
- Good knowledge of Redis, its data types, and their use cases.
- Experience developing and deploying REST APIs.
- Knowledge and working experience in Cloud environment - AWS or Azure
- 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

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Required Core Tech Stack:
We're looking for engineers with hands-on experience across most of the following technologies:
- Python Backend Development (3+ years)
- FastAPI (2+ years of production experience required)
- PostgreSQL
- MongoDB
- Redis
- Docker
- Celery or equivalent async task queues
- REST APIs & Microservices
- AWS/GCP
- GitLab CI/CD
The selected Sr. Backend engineer will ship the backbone that powers 4 million + learners in 64 countries—owning APIs that crunch 1 billion learning events & the AI that supports it with <200 ms latency.
What You'll Do:
At LearnTube, we’re pushing the boundaries to revolutionize how the world learns. As a Senior Backend Engineer, your roles and responsibilities will include:
- Shipping Micro-services – Build FastAPI services that handle ≈ 800 req/s today and will triple within a year (sub-200 ms p95).
- Power Real-Time Learning – Drive the quiz-scoring & AI-tutor engines that crunch millions of events daily.
- Design for Scale & Safety – Model data (Postgres, Mongo, Redis, SQS) and craft modular, secure back-end components from scratch.
- Deploy Globally – Roll out Dockerised services behind NGINX on AWS (EC2, S3, SQS) and GCP (GKE) via Kubernetes.
- Automate Releases – GitLab CI/CD + blue-green / canary = multiple safe prod deploys each week.
- Own Reliability – Instrument with Prometheus / Grafana, chase 99.9 % uptime, trim infra spend.
- Expose Gen-AI at Scale – Publish LLM inference & vector-search endpoints in partnership with the AI team.
- Ship Fast, Learn Fast – Work with founders, PMs, and designers in weekly ship rooms; take a feature from Figma to prod in < 2 weeks.
What makes you a great fit?
Must-Haves (Applicants without these skills are unlikely to move forward):
- 3+ yrs Python back-end experience (FastAPI)
- Strong with Docker & container orchestration
- Hands-on with GitLab CI/CD, AWS (EC2, S3, SQS) or GCP (GKE / Compute) in production
- SQL/NoSQL (Postgres, MongoDB) + You’ve built systems from scratch & have solid system-design fundamentals
Nice-to-Haves
- k8s at scale, Terraform,
- Experience with AI/ML inference services (LLMs, vector DBs)
- Observability: Prometheus, Grafana, OpenTelemetry
Why LearnTube?
- Build AI products at global scale – Your work will power learning experiences for 4M+ learners across 64 countries.
- Work directly with experienced founders – Collaborate closely with founders who are deeply involved in product and engineering decisions, giving you ownership and a direct impact on the product roadmap.
- Learn fast – Join a high-performing team where you'll own features end-to-end and solve challenging backend and distributed systems problems.
- Recognized AI startup – LearnTube is a Google Top 20 AI Startup and part of Google's AI First Startup Accelerator, with access to cutting-edge AI technology and mentorship.
Why Work With Us?
At LearnTube, we believe in creating a work environment that’s as transformative as the products we build. Here’s why this role is an incredible opportunity:
- Cutting-Edge Technology: You’ll work on state-of-the-art generative AI applications, leveraging the latest advancements in LLMs, multimodal AI, and real-time systems.
- Autonomy and Ownership: Experience unparalleled flexibility and independence in a role where you’ll own high-impact projects from ideation to deployment.
- Rapid Growth: Accelerate your career by working on impactful projects that pack three years of learning and growth into one.
- Founder and Advisor Access: Collaborate directly with founders and industry experts, including the CTO of Inflection AI, to build transformative solutions.
- Team Culture: Join a close-knit team of high-performing engineers and innovators, where every voice matters, and Monday morning meetings are something to look forward to.
- Mission-Driven Impact: Be part of a company that’s redefining education for millions of learners and making AI accessible to everyone.
Architect
Experience - 12+ yrs
About Wekan Enterprise Solutions
Wekan Enterprise Solutions is a leading Technology Consulting company and a strategic investment partner of MongoDB. We help companies drive innovation in the cloud by adopting modern technology solutions that help them achieve their performance and availability requirements. With strong capabilities around Mobile, IOT and Cloud environments, we have an extensive track record helping Fortune 500 companies modernize their most critical legacy and on-premise applications, migrating them to the cloud and leveraging the most cutting-edge technologies.
Job Description
We are looking for passionate architects eager to be a part of our growth journey. The right candidate needs to be interested in working in high-paced and challenging environments leading technical teams, designing system architecture and reviewing peer code. Interested in constantly upskilling, learning new technologies and expanding their domain knowledge to new industries. This candidate needs to be a team player and should be looking to help build a culture of excellence. Do you have what it takes?
You will be working on complex data migrations, modernizing legacy applications and building new applications on the cloud for large enterprise and/or growth stage startups. You will have the opportunity to contribute directly into mission critical projects directly interacting with business stakeholders, customer’s technical teams and MongoDB solutions Architects.
Location - Chennai or Bangalore
● Relevant experience of 12+ years building high-performance applications with at least 3+ years as an architect.
● Good problem solving skills
● Strong mentoring capabilities
● Good understanding of software development life cycle
● Strong experience in system design and architecture
● Strong focus on quality of work delivered
● Excellent verbal and written communication skills
Required Technical Skills
● Extensive hands-on experience building high-performance applications using Node.Js (Javascript/Typescript) and .NET/ Golang / Java / Python.
● Strong experience with appropriate framework(s).
● Wellversed in monolithic and microservices architecture.
● Hands-on experience with data modeling on MongoDB and any other Relational or NoSQL databases
● Experience working with 3rd party integrations ranging from authentication, cloud services, etc.
● Hands-on experience with Kafka or RabbitMQ.
● Handsonexperience with CI/CD pipelines and atleast 1 cloud provider- AWS / GCP / Azure
● Strong experience writing and maintaining clear documentation
Good to have skills:
● Experience working with frontend technologies - React.Js or Vue.Js or Angular.
● Extensive experience consulting with customers directly for defining architecture or system design.
● Technical certifications in AWS / Azure / GCP / MongoDB or other relevant technologies
- Understand the architecture and design of multiple existing API capabilities
- Collaborate with the team to monitor and maintain the availability and performance of existing API capabilities
- Troubleshoot and resolve defects within existing API capabilities
- Collaborate with teammates to understand and troubleshoot issues within the larger system
- Perform periodic sustainment activities such as license, certificate, and credential updates.
- Develop enhancements to existing API capabilities as defined and approved by the leadership
- Participate in daily stand-up meetings and other Agile ceremonies
- Write clean, scalable code based on requirements and consistent with the design
- Unit Test enhancement and defect corrections
- Collaborate with teammates to perform system regression testing
- Deploy new baselines to production environments following existing Maintenance Release Processes
- Make recommendations for enhancements to improve existing software and/or to enhance the monitoring capability
- Serve as an expert on applications and provide technical support when appropriate
- Excellent analytical, programming, and debugging skills
- 3+ years of hands-on experience developing backend RoR & Java solutions
- Familiarity or proficiency with Spring Boot-based development
- Understanding of the fundamental technologies of the web, including HTTP, SSL, and JSON
- Working knowledge of AWS, Docker, Kubernetes, and SQL databases
- Enthusiasm for the latest and greatest tools and technologies
- Commitment to a DevOps culture
- Excellent communication and collaboration skills
- Has high standards, results-oriented, and a commitment to delivering high-quality software on time
1. Strong knowledge of PHP web frameworks such as Laravel
2. Knowledge of object oriented PHP programming & Restful API
3. Strong knowledge of Akamai CDN, Redis, AWS services
4. Understanding of LAMP and MVC design patterns
5. Basic understanding of front-end technologies, such as JavaScript, HTML5, and CSS3,
JS framework
6. Knowledge of Payment Gateway
7. Familiarity with MySQL/ PgSQL/ Mongo databases
8. Proficient understanding of code versioning tools, such as Git
9. Understanding accessibility and security compliance
10. Understanding fundamental design principles behind a scalable application.
11. User authentication and authorization between multiple systems, servers, and
environments
About Company:
Fusion Softtech is one of the best offshore development companies based in Ahmedabad, India. We are a bunch of tech-savvy individuals who together as a teamwork to have great expertise in the latest technologies and developments so as to be able to cater the best of the services in the domain of Technology.
We, ensure being the hard core Technoids that our clients around the globe are given the best of our facilities through advancements in technologies which would actually help to make their lives a better place. What we do? We are specialized in creating user-friendly web-designs and applications with a primary goal to be simple and effective for use. We work hand-in-hand with your visions and goals to optimize your business/product. We provide you an end-to-end solution.
Job Description:
- Lead a team, handle client, conduct technical interview, and provide training to new joiners.
- Design, implement, and maintain web application phases.
- Conduct software analysis, programming, testing, and debugging
- Identifying production and non-production application issues
- Transforming requirements into stipulations.
- Should have knowledge of Data structures
- Develop, test, implement and maintain application software
- Recommend changes to improve established software application processes
- Ability to develop logical and high-quality code which meets functional specifications along with technical requirements for reusability, maintainability and scalability when appropriate application code for java programs.
- Ability to perform technical analysis based on requirements to establish architecture approach and create detailed design in support of the requirements.
- Excellent written and verbal communication skills, worked for foreign client would be an added advantage.
Technical Skills:
OOPS, Java, J2EE, Spring MVC, Spring Boot , Spring security and Spring Batch SOAP, REST API, Logging Framework, Hibernate, XML, JEE (Servlets/JSP/JMS), web services experience, microservices, AWS, Kubernetes, ELK Stack, Multithreading, GIT
Key Skills and Experience:
- Min 5+ years of experience in the JAVA/J2EE.
- Experience with RESTFUL Web services.
- Experience in portal & web content management
- Hands-on experience on Javascript frameworks Alloy UI and JQuery.
- Hands-on experience in software development using J2EE Frameworks Spring, Spring Boot, Struts, Hibernate.
- Basic knowledge of Javascript, HTML5, and CSS3.
- Good to have experience or Knowledge in AngularJS, ReactJS, different AWS services like S3, EC2, DynamoDB, Lambda function.
- Exposure in any of the Databases -MySQL/Postgres/Oracle/DB2 etc.
Perks and Benefits:
- Flexible working hours.
- 5 days working
- Fun loving environment with ample scope for flexibility.
- Exposure to work for foreign clients
- Employee friendly leave & Company Policies.
- Best working culture
- Work with business analysts to estimate and design effective, scalable and maintainable solutions that meet business initiatives and objectives
- Develop and unit test software that meets business requirements and technical design
- Troubleshoot pre- and post-production implementations
- Propose new ideas when there is strong business value and stay up to date on the latest technology trends and techniques
Critical Skills & Experiences:
- At least 5+ years of experience developing in Java technologies with equivalent experience in systems analysis, OO design, OO programming and debugging skills
- At least 5 years of experience in Java Spring Boot Framework development
- 2 years of experience in any Cloud platform, preferably AWS.
- At least 3 years of web services and relational database experience (preferably Mysql)
- At least a year of Elastic search experience
- Experience developing RESTful web services (preferably micro services)
- Experience with UNIX/Linux command line and shell scripting
- Experience working in cross-functional Agile/Scrum teams
- Any level of experience with JIRA or any other issue tracking technology
- Experience working directly with business stakeholders
- Experience with Java application profiling and profiling tools
- Exceptional written and verbal communication skills.
- Drive performance to accomplish team goals in a fast-paced environment
- Bachelor’s degree or the above equivalent skills and years of experience
Keywords:
Experience: +5 Years
Technical skills: Java, Spring boot and Node JS
The key aspects of this role:
- Candidate with exceptional programming skills, problem-solving abilities and strong work ethic.
- The candidate has to work on custom programming and web application development for Drupal.
- Testing, maintenance and troubleshooting of existing company sites and resolving issues if any.
- Contributing ideas and efforts towards internal projects and working as part of a team to find solutions on various problems.
- Communicate technical ideas to business users and other teams (design, QA). • Collaborate with team members and to work independently when needed. • Eager to embrace current and emerging web technologies.
To be the right fit, you'll need:
- Experience of total 4+ years working on PHP and Drupal 7,8 Development (at least 2+ years in Drupal 8)
- Strong knowledge of MySQL, jQuery, HTML5, CSS
- Experience with Drupal architecture, best practices and coding standards
- Knowledge on Views, Services etc.
- Experience in custom module and theme creation
- Familiar with sub version control systems such as Git or SVN
- Basic knowledge of environment setup for Linux distribution
- 2+ years of Hands-on experience in Python, Django, Flask, Bottle, Design Patterns, Web Services (SOAP/HTTP, REST APIs)
- 2+ years of hands-on experience with Postgress, MongoDB.
- Experience with cache-store / message broker like Redis / RabbitMQ / Kafka
- Experience with AWS
- Experience in front-end development using react.js is a plus.
- Proficient understanding of code versioning tools, such as Git / Mercurial /bitBucket.
- DevOps knowledge to deploy code in production and hands-on experience with docker / Kubernetes.
- Self-motivated and a good team player.
- Good communication and interpersonal skills.
- Bachelor’s Degree in Engineering from a reputed Institute







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