Backend Developer - Freelancer

Job Title : Senior Consultant (Java / NodeJS + Temporal)

Experience : 5 to 12 Years

Location : Bengaluru, Chennai, Hyderabad, Pune, Mumbai, Gurugram, Coimbatore

Work Mode : Remote (Must be open to travel for occasional team meetups)

Notice Period : Immediate Joiners or Serving Notice

Interview Process :

• R1 : Tech Interview (60 mins)
• R2 : Technical Interview
• R3 : (Optional) Interview with Client

Job Summary :

We are seeking a Senior Backend Consultant with strong hands-on expertise in Temporal (BPM/Workflow Engine) and either Node.js or Java.

The ideal candidate will have experience in designing and developing microservices and process-driven applications, as well as orchestrating complex workflows using Temporal.io.

You will work on high-scale systems, collaborating closely with cross-functional teams.

Mandatory Skills :

Temporal.io, Node.js (or Java), React.js, Keycloak IAM, PostgreSQL, Terraform, Kubernetes, Azure, Jest, OpenAPI

Key Responsibilities :

• Design and implement scalable backend services using Node.js or Java.
• Build and manage complex workflow orchestrations using Temporal.io.
• Integrate with IAM solutions like Keycloak for role-based access control.
• Work with React (v17+), TypeScript, and component-driven frontend design.
• Use PostgreSQL for structured data persistence and optimized queries.
• Manage infrastructure using Terraform and orchestrate via Kubernetes.
• Leverage Azure Services like Blob Storage, API Gateway, and AKS.
• Write and maintain API documentation using Swagger/Postman/Insomnia.
• Conduct unit and integration testing using Jest.
• Participate in code reviews and contribute to architectural decisions.

Must-Have Skills :

• Temporal.io – BPMN modeling, external task workers, Operate, Tasklist
• Node.js + TypeScript (preferred) or strong Java experience
• React.js (v17+) and component-driven UI development
• Keycloak IAM, PostgreSQL, and modern API design
• Infrastructure automation with Terraform, Kubernetes
• Experience in using GitFlow, OpenAPI, Jest for testing

Nice-to-Have Skills :

• Blockchain integration experience for secure KYC/identity flows
• Custom Camunda Connectors or exporter plugin development
• CI/CD experience using Azure DevOps or GitHub Actions
• Identity-based task completion authorization enforcement

Job Profile : Python Developer

Job Location : Ahmedabad, Gujarat - On site

Job Type : Full time

Experience -  4+ Years

Key Responsibilities:

• Design, develop, and maintain Python-based applications and services.
• Collaborate with cross-functional teams to define, design, and ship new features.
• Write clean, maintainable, and efficient code following best practices.
• Optimize applications for maximum speed and scalability.
• Troubleshoot, debug, and upgrade existing systems.
• Integrate user-facing elements with server-side logic.
• Implement security and data protection measures.
• Work with databases (SQL/NoSQL) and integrate data storage solutions.
• Participate in code reviews to ensure code quality and share knowledge with the team.
• Stay up-to-date with emerging technologies and industry trends.

Requirements:

• 4+ years of professional experience in Python development.
• Strong knowledge of Python frameworks such as Django, Flask, or FastAPI.
• Experience with RESTful APIs and web services.
• Proficiency in working with databases (e.g., PostgreSQL, MySQL, MongoDB).
• Familiarity with front-end technologies (e.g., HTML, CSS, JavaScript) is a plus.
• Experience with version control systems (e.g., Git).
• Knowledge of cloud platforms (e.g., AWS, Azure, Google Cloud) is a plus.
• Understanding of containerization tools like Docker and orchestration tools like Kubernetes     is good to have
• Strong problem-solving skills and attention to detail.
• Excellent communication and teamwork skills.

Good to Have:

• Experience with data analysis and visualization libraries (e.g., Pandas, NumPy, Matplotlib).
• Knowledge of asynchronous programming and event-driven architecture.
• Familiarity with CI/CD pipelines and DevOps practices.
• Experience with microservices architecture.
• Knowledge of machine learning frameworks (e.g., TensorFlow, PyTorch) is a plus.
• Hands-on experience in RAG and LLM model intergration would be surplus.

• Develop, test, and maintain server-side applications using Node.js and related technologies.
• Design and implement RESTful APIs and microservices architecture to support frontend functionality.
• Collaborate with cross-functional teams to understand business needs and translate them into technical solutions.
• Optimize application performance, ensuring scalability and reliability.
• Conduct code reviews, mentor junior developers, and ensure adherence to best practices.
• Stay updated with emerging backend technologies and methodologies to improve development processes.

Mandatory

• SaaS experience of 2 years with total development experience of 4 years
• Must have worked in a smaller company of less than 100
• Should have built solutions/softwares end to end and not just as a part of bigger team
• Should see themselves going deeper into the same role even 5 years down the line
• Should have knowledge on Node.js, MongoDB, and AWS
• Strong understanding of asynchronous programming, event-driven architecture, and Node.js design patterns.
• Proficiency in working with databases such as PostgreSQL, MongoDB, or MySQL.
• Experience with API development, including RESTful services and microservices.
• Familiarity with cloud platforms such as AWS, Azure, or Google Cloud.
• Strong problem-solving skills and the ability to debug complex server-side issues.

Essential

• Proficiency with version control systems like Git.
• Experience with CI/CD pipelines and deployment automation.
• Knowledge of system design and scalable architecture.
• Understanding of security best practices and implementing secure APIs.

Good to Have

• Experience with GraphQL and related backend technologies.
• Knowledge of containerization and orchestration tools like Docker and Kubernetes.
• Familiarity with message brokers like RabbitMQ or Kafka.
• Experience with platforms like Shopify, BigCommerce, or other e-commerce technologies.
• Exposure to frontend technologies such as React for better cross-functional collaboration.

Requirement Analysis

• Programming/Software Development
• Developer Testing
• Code Review
• Client Handling

External Title: Backend Developer.

Location: Remote

Year of experience: 4+ years

Job Description:

• Understanding of the working of a web-based application.
• Expert Knowledge of Microservices architecture.
• Understanding the nature of asynchronous programming and its quirks and workarounds.
• Proficient understanding of code versioning tools, such as Git.
• Basic understanding of REST APIs and their concepts.
• Basic understanding of front-end technologies, such as HTML5, and CSS3, JavaScript.