Senior Fullstack Developer

Senior Python Developer (Backend & Architecture)

Level: Senior

Experience: 8–10 years

Function: Backend Engineering & Architecture

Role Overview

As Senior Python Developer, you will own the backend architecture of the platform — the

scalable, reliable foundation on which agents are created, deployed, and run. You will design

the core services, data layers, and execution infrastructure that make the Agent OS robust at

scale.

Key Responsibilities

• Design and own the backend architecture — services, APIs, data models, and the agent

execution / runtime engine.

• Build scalable, secure, high-performance Python services that power agent deployment

and runtime.

• Architect the systems that manage the full agent lifecycle: creation, versioning,

deployment, scaling, and monitoring.

• Design asynchronous, event-driven, and queue-based systems for reliable agent

execution at scale.

• Build robust integration layers connecting tools, connectors, databases, and the AI / ML

layer.

• Define and uphold standards for code quality, testing, observability, and security across

the backend.

• Optimize the platform infrastructure for performance, reliability, cost, and scalability.

Required Skills & Experience

• 8–10 years of backend development with deep, expert-level Python.

• Hands-on experience with the backend of agent-builder / Agent OS platforms — the

infrastructure that lets users build, deploy, and run AI agents reliably at scale.

• Strong experience designing distributed systems and microservices architecture.

• Expertise with modern Python frameworks (FastAPI, Django, or Flask) and async

programming (asyncio).

• Strong API design skills (REST / GraphQL) and experience with message queues / event

systems (Kafka, RabbitMQ, Celery, or similar).

• Solid database design across SQL and NoSQL, with experience in caching and vector

stores.

• Experience with containers and orchestration (Docker, Kubernetes) and cloud platforms

(AWS / Azure / GCP).

• Strong grasp of system design, scalability, security, and production reliability.

• Familiarity with LLM orchestration, RAG pipelines, or model-serving infrastructure.

• Experience with multi-tenant SaaS architecture and infrastructure-as-code.

• Exposure to observability and tracing for distributed, long-running workloads.

About the Role 

As a result of our rapid growth, we are looking for a Java Backend Engineer to join our existing Cloud Engineering team and take the lead in the design and development of several key initiatives of our existing Miko3 product line as well as our new product development initiatives. 

Responsibilities 

•  Designing, developing and maintaining core system features, services and engines
• Collaborating with a cross functional team of the backend, Mobile application, AI, signal processing, robotics Engineers, Design, Content, and Linguistic Team to realize the requirements of a conversational social robotics platform which includes investigate design approaches, prototype new technology, and evaluate technical feasibility
• Ensure the developed backend infrastructure is optimized for scale and responsiveness 
• Ensure best practices in design, development, security, monitoring, logging, and DevOps adhere to the execution of the project. 
• Introducing new ideas, products, features by keeping track of the latest developments and industry trends 
• Operating in an Agile/Scrum environment to deliver high quality software against aggressive schedules

Requirements 

• Proficiency in distributed application development lifecycle (concepts of authentication/authorization, security, session management, load balancing, API gateway), programming techniques and tools (application of tested, proven development paradigms)  
• Proficiency in working on Linux based Operating system. 
• Proficiency in at least one server-side programming language like Java. Additional languages like Python and PHP are a plus 
• Proficiency in at least one server-side framework like Servlets, Spring, java spark (Java). 
• Proficient in using ORM/Data access frameworks like Hibernate,JPA with spring or other server-side frameworks. 
• Proficiency in at least one data serialization framework: Apache Thrift, Google ProtoBuffs, Apache Avro,Google Json,JackSon etc. 
• Proficiency in at least one of inter process communication frameworks WebSocket's, RPC, message queues, custom HTTP libraries/frameworks ( kryonet, RxJava ), etc.  
• Proficiency in multithreaded programming and Concurrency concepts (Threads, Thread Pools, Futures, asynchronous programming). 
• Experience defining system architectures and exploring technical feasibility tradeoffs (architecture, design patterns, reliability and scaling)
• Experience developing cloud software services and an understanding of design for scalability, performance and reliability
• Good understanding of networking and communication protocols, and proficiency in identification CPU, memory & I/O bottlenecks, solve read & write-heavy workloads. 
• Proficiency is concepts of monolithic and microservice architectural paradigms. 
• Proficiency in working on at least one of cloud hosting platforms like Amazon AWS, Google Cloud, Azure etc.   
• Proficiency in at least one of database SQL, NO-SQL, Graph databases like MySQL, MongoDB, Orientdb 
• Proficiency in at least one of testing frameworks or tools JMeter, Locusts, Taurus 
• Proficiency in at least one RPC communication framework: Apache Thrift, GRPC is an added plus 
• Proficiency in asynchronous libraries (RxJava), frameworks (Akka),Play,Vertx is an added plus 
• Proficiency in functional programming ( Scala ) languages is an added plus 
• Proficiency in working with NoSQL/graph databases is an added plus 
• Proficient understanding of code versioning tools, such as Git is an added plus 
• Working Knowledge of tools for server, application metrics logging and monitoring and is a plus Monit, ELK, graylog is an added plus 
• Working Knowledge of DevOps containerization utilities like Ansible, Salt, Puppet is an added plus 
• Working Knowledge of DevOps containerization technologies like Docker, LXD is an added plus  
• Working Knowledge of container orchestration platform like Kubernetes is an added plus 

Job Brief:

We are looking for experience in API and Node.js to produce scalable software solutions. You will be part of a cross-functional team that is responsible for the full software development life cycle, from conception to deployment. You should be comfortable around both front-end and back-end coding languages, development frameworks and third-party libraries. You should also be a team player with a knack for visual design and utility.

Responsibilities:

·       Work with development teams and product managers to ideate software solutions.

·       Design client-side and server-side architecture

·       Build the front-end of applications through appealing visual design.

·       Develop and manage well-functioning databases and applications.

·       Write effective APIs.

·       Test software to ensure responsiveness and efficiency.

·       Troubleshoot, debug and upgrade software.

·       Create security and data protection settings.

·       Build features and applications with a mobile responsive design.

·       Write technical documentation.

·       Work with data scientists and analysts to improve software.

Requirements:

·       Proven experience as a Full Stack Developer or similar role

·       Experience developing desktop and mobile applications.

·       Familiarity with common stacks

·       Knowledge of multiple front-end languages and libraries (e.g. HTML/ CSS, JavaScript, Nodejs and .Net)

·       Familiarity with databases (e.g. MySQL, MS SQL, Mogo DB)

·       Good to have- Cloud knowledge (Azure, AWS)

·       Strong command on API Development with  Nodejs

·       Good to have- knowledge on multiple back-end languages ( Java, Python) and knowledge of JavaScript frameworks ( React, Angular, Node )

·       Excellent communication and teamwork skills

·       Great attention to detail

·       Organizational skills

Technical Skills:

HTML, CSS, React, API, JavaScript, Node, SQL, and Cloud knowledge (Azure/AWS)

 Experience – 4+ Years

Position: PHP / MYSQL Developer & NodeJS / MongoDB Developer 

  -  The selected candidate is required to work on Core PHP or NodeJS/MongoDB. 

  -   Building web services for Mobile applications. 

   Selected candidate will be a part of product development team and have to manage both maintenance and enhancement projects. 

As a PHP Developer: 

1. You love an Agile work culture and deliver as per plan  
2. You're a lively person who's passionate on what you do  
3. You're a nonstop learner and enjoy sharing the learning to your juniors 
4. You're socially connected with the team and helping others team voluntarily. 
5. You're tech- expertise and effective in tools operation and automate the regular process  
6. You're someone who loves problem- working by seeing the occasion in every challenge and you enjoy learning from failures  
7. Honestly share your experience, feedback, challenges, learning and emotions for the day in your daily diary. 
8. Think of user needs instead of system needs 

Skills & Expertise we look for: 

1. Hands-on experience in Core PHP and MySQL Database 
2. Design and implement the Restful services. 
3. Familiar with HTML, CSS, jQuery, JavaScript 
4. Good knowledge in front-end frameworks such as Angular JS / React JS 
5. Good knowledge in gathering requirements, creating technical specifications, architecture documents and project planning 
6. Maintain and improve the performance of the applications.  
7. Should good in evaluate and implement new technologies to maximize development efficiency and improve the applications. 
8. Should good in communication skills and ability to work closely with diverse teams in a fast-paced environment. 
9. Should have some experience in integrating projects with third-party vendors 

• Writing efficient, reusable, testable, and scalable code
• Understanding, analyzing, and implementing – Business needs, feature modification requests, conversion into software components
• Integration of user-oriented elements into different applications, data storage solutions
• Developing – Backend components to enhance performance and receptiveness, server-side logic, and platform, statistical learning models, highly responsive web applications
• Designing and implementing – High availability and low latency applications, data protection and security features
• Performance tuning and automation of application
• Working with Python libraries like Pandas, NumPy, etc.
• Creating predictive models for AI and ML-based features
• Keeping abreast with the latest technology and trends
• Fine-tune and develop AI/ML-based algorithms based on results

Good proficiency in,

• Python frameworks like Django, etc.
• Web frameworks and RESTful APIs
• Core Python fundamentals and programming
• Code packaging, release, and deployment
• Database knowledge
• Circles, conditional and control statements
• Object-relational mapping
• Code versioning tools like Git, Bitbucket

Fundamental understanding of,

• Front-end technologies like JS, CSS3 and HTML5
• AI, ML, Deep Learning, Version Control, Neural networking
• Data visualization, statistics, data analytics
• Design principles that are executable for a scalable app
• Creating predictive models
• Libraries like Tensorflow, Scikit-learn, etc
• Multi-process architecture
• Basic knowledge about Object Relational Mapper libraries
• Ability to integrate databases and various data sources into a unified system
• Basic knowledge about Object Relational Mapper libraries
• Ability to integrate databases and various data sources into a unified system

Role Description:

As a Lead Backend Engineer , you will be responsible for designing and deploying scalable, highly available, and fault-tolerant systems for Radiusagent. Experience as a Tech Lead, managing tasks with back-end engineers while coding themselves will be a bonus point for the ideal candidate.

Responsibilities will include-

• You will contribute to all aspects of an agile software development lifecycle including design, architecture, development, documentation, testing, and operations.
• You will build cutting-edge scalable systems by writing simple and efficient code.
• You will push your design and architecture limits for new product development.
• You will ensure compliance with the build/release and configuration management process.

Skills needed:

• be able to design and build modules from ground up
• proficient in any one programming language out of php/golang/node/python/javascript/java/ruby and ability to pick up others
• experience with mysql/postgres/mongodb/couchdb
• experience  with redis/memcached
• experience with rabbitmq / kafka
• experience in having written cron jobs, troubleshooting downtime
• ability to work with ambiguous requirements
• good understanding of OS concepts

Nice to haves:

• experience with managing VMs' on aws/gcp/digitalocean 
• experience with docker/kubernetes
• experience elasticsearch or lucene

Description

• Responsible for developing Web Applications.
• Design, Develop, enhance and test front-end, back-end web modules using Node.js, Express framework, My Sql and Mongo DB.
• Research and explore existing solutions, competition, to get a holistic understanding of the Design and development.
• Communicate and collaborate effectively with various teams for effective outcomes.
• Meet deadlines in a high intensity work environment 

Primary Skills :

• Proficient in Nodejs
• Understanding of Front-End Technologies
• Good Knowledge of Node
• Proficient in RESTful APIs and API Communications
• Good Grasp of Asynchronous Programming and Its Workarounds
• Database Schema Creation for Business Processes
• Working Knowledge in User Authentication and Authorization
• Write Efficient Code
• Implementing Data Protection
• Error-Handling Skills