
Postgress developer cum database architect
5-7 years experience
Knowledge and experience, specifically PostGre
- SQL
- Query Optimization / Optimization strategies (in PostGre)
- AWS - RDS Relational Databse Service
- Optional: AWS – RDS API / PostGre API

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About us
CallHub provides cloud based communication software for nonprofits, political parties, advocacy organizations and businesses. We have delivered over 200 millions messages and calls for thousands of customers. We help political candidates during their campaigns in getting their message across to their voters, conduct surveys, manage event/town-hall invites and with recruiting volunteers for election campaigns. We are profitable with 8000+ paying customers from North America, Australia and Europe. Our customers include Uber, the Democratic Party, major political parties in the US, Canada, UK, France and Australia.
About the Role
As a Senior/Lead Software Engineer at CallHub, you will play a critical role in leading the development and enhancement of our cloud-based communication and telephony platform (SaaS). You will be responsible for designing, building, and optimizing scalable, high-performance backend systems that support the rapid growth of our global user base, ensuring reliability, security, and customer satisfaction at every step. In this role, you will collaborate with cross-functional teams of highly skilled software engineers, operations engineers, and product managers to drive innovation and create products that delight customers by exceeding their expectations. You will lead technical decision-making, mentor engineers, and be responsible for building robust systems that are always available, while also contributing to the development of automation tools to streamline processes and improve efficiency. We are seeking experienced engineers with a deep understanding of software engineering principles, strong problem-solving skills, and a passion for leading teams to deliver impactful, customer-focused solutions. If you thrive in a fast-paced environment, love solving complex technical challenges, and are excited about mentoring and guiding the next generation of engineers, we’d love to hear from you!
Your Responsibilities
- Lead the design, development, and deployment of complex, scalable, reliable, and highly available features for world-class SaaS products and services.
- Guide the engineering team in adopting best practices for software development, code quality, and architecture.
- Make strategic architectural and technical decisions, ensuring the scalability, security, and performance of software applications.
- Proactively identify, prioritize, and address technical debt to improve system performance, maintainability, and long-term scalability, ensuring a solid foundation for future development.
- Collaborate with cross-functional teams (product managers, designers, and stakeholders) to define project scope, requirements, and timelines.
- Mentor and coach team members, providing technical guidance and fostering professional development.
- Oversee code reviews, ensuring adherence to best practices and maintaining high code quality standards.
- Drive continuous improvement in development processes, tools, and technologies to increase team productivity and product quality.
- Stay updated with the latest industry trends and emerging technologies to drive innovation and keep the team at the cutting edge.
- Ensure project timelines and goals are met, managing risks and resolving any technical challenges that arise during development.
- Foster a collaborative and inclusive team culture, promoting open communication and problem-solving.
- Imbibe and maintain a strong customer delight attitude while designing and building products.
What we’re looking for
- 7+ years of experience in software engineering, with a proven track record of leading engineering teams and mentoring junior developers.
- Strong expertise in designing and developing scalable backend systems, web services, and REST APIs using Python/Django or similar frameworks.
- Solid understanding of cloud-based architectures and microservices, with experience in deploying and maintaining SaaS applications.
- Solid experience in software engineering principles, including CI/CD pipelines, unit testing, code reviews, and version control (e.g., Git).
- Proficiency in working with databases like PostgreSQL, and experience in optimizing queries and ensuring high availability.
- Deep knowledge of computer science fundamentals, including data structures, algorithms, and software design principles.
- Experience with frontend technologies such as React, JavaScript, HTML, and CSS, and an understanding of how they integrate with backend services.
- Ability to quickly adapt to new technologies and make informed technical decisions in dynamic environments.
- Strong attention to detail, with the ability to empathize with customer needs and translate them into impactful software solutions.
- Excellent written and verbal communication skills, with the ability to clearly articulate technical concepts to both technical and non-technical stakeholders.
- Collaborative team player, willing to support and work closely with cross-functional teams.
- Bachelor’s or Master’s degree in Engineering or Computer Science from a reputable institution.
What you can look forward to
- Leadership and Ownership: Lead and oversee the entire software development lifecycle, from system design and development (backend and frontend) to QA and DevOps, with a focus on driving high-impact projects.
- Strategic Impact: Witness the direct impact of your work on our users and the overall success of the company, shaping products and solutions that make a significant difference.
- Innovative Technologies: Stay at the forefront of technology by working with the latest tools and frameworks, as we continuously innovate to deliver reliable and scalable solutions for our customers.
- Collaborative Culture: Engage in a culture of openness and collaboration, where your insights and leadership help drive the company’s success and delight our customers.
Good understanding and experience of HTML / CSS / JavaScript.
Hands-on experience with ES6 / ES7 / ES8 features.
Thorough understanding of the Request Lifecycle (including Event Queue, Event Loop,
Worker Threads, etc).
Familiarity with security principles including SSL protocols, data encryption, XSS, CSRF.
Expertise in Web Services / REST APIs will be beneficial.
Proficiency in Linux and deployment on Linux are valuable.
Knowledge about ORM like Sequelize and ODM like Mongoose and the ability to handle
DB transactions is a necessity.
Experience with Angular JS / React JS will be an added advantage.
Expertise with RDBMS like MySQL / PostgreSQL will be a plus.
Knowledge of AWS services like S3, EC2 will be helpful.
Understanding of Agile and CI/CD will be of value.


- Experience in designing scalable micro-services required
- Sound knowledge of Python and Django, familiarity with Linux and git
- Deep understanding of how RESTful APIs work
- Familiarity with HTML / CSS and templating systems, Redis, RabbitMQ, NGINX preferred
-Bonus - Preliminary knowledge of any one of these languages - Golang / JavaScript / Lua Responsibilities
About Company
Our client is in the business of delivering cutting-edge software solutions, hardware systems, and IT services. It lends the right technological edge to governments and businesses. This enables them to achieve their organizational objectives efficiently and effectively to scale their businesses to newer heights.
Minimum Requirements/Qualifications:
• Bachelor’s/Master’s degree in computer science, Computer Engineering or a related field is preferred.
• Must have at least 5 to 7 years of experience in application development (Java,Spring Framework), Deployment(Apache Tomcat & Nginx)
• Sound knowledge of Object-Oriented Programming (OOP) Patterns and Concepts.
• Knowledge & hands-on experience of Java, Spring Framework, Spring Security, JSP, Apache Tomcat, Nginx is a must.
• Must have experience with Bootstrap CSS, jQuery etc.
• Basic Understanding of PostgreSQL, MVC (Model-View-Controller) Pattern, JDBC (Java Database Connectivity), and RESTful web services.
• Relevant Knowledge of Java GUI frameworks according to project requirements.
• Experience in handling external and embedded databases.
Roles & Responsibilities
• Develop new modules, patches & Updates/upgrades for an existing application (developed in-house by the client)
• Bug fixing, and updating of software.
• Analyze user requirements to define business objectives.
• Maintain Java-based applications that can be high-volume and low-latency.
• Identify and resolve any technical issues arising.
• Write well-designed, testable code.
• Conducting software analysis, programming, testing, and debugging.
• Support continuous improvement, investigating alternatives and technologies, and presenting for architectural review.




Founded in 2016, they are one of the leading online scheduling software companies in the world, with over 200,000 customers globally. They are a profitable, high-growth bootstrapped platform-as-a-product company with 50+ team members looking to grow to $50M in revenue in the next 3 years.
Role: SSE- Backend [Golang]
Location: Remote (India)
CTC: 22-26 LPA
NP: 30 days or less
Note: Other Backend Language /Frameworks like Python, NodeJS and Java Springboot and willingness to learn Golang can also be considered
Skillset Requirements:
- Strong experience with backend programming languages and technologies like
- Golang (minimum 2-year experience)
- Protobuf and gRPC
- RESTful APIs
- Docker and Kubernetes
- Medium-level experience with PostgreSQL and MySQL database concepts.
- Ability to write efficient, secure, well-documented, and clean code.
- Proven ability to work with multiple teams, multitask and prioritize.
- Experience with Git, JIRA, and Agile working methodology.
- Experience with design patterns, Event-Driven architecture, and Domain Driven Designs.
Responsibilities:
- Write code that meets standard and delivery guidelines.
- Mentor fellow engineers in the team to develop high-quality software and perform code
reviews.
- Work with the team to break user stories into tasks and delegate them to the team
members.
- Playing a key role in architectural and design decisions, building toward an efficient
microservices distributed architecture.
- Analyze solutions and help implement engineering best practices.
- Work with Project Managers for timely delivery and forecast.
- Lead and mentor junior engineers on technical issues. Perform blameless RCAs when
issues occur and take ownership to resolve issues.
#remotejobs #bootstrapped #platformasaproduct #highgrowth

About KAFQA
At Kafqa, we are building the next generation performing arts platform. Our mission is to transform how India learns, performs & watchers performing arts. We are currently in stealth mode with a target public launch date in April. Our launch services consist of technology enabled dance classes in our proprietary studios, production facilities and social media broadcasting & competitions.
Founder & Team
The founder is Shariq Plasticwala. He is a graduate of IIT Bombay & Stanford GSB. He was part of the founding team of Amazon India where he played a key role for over 8 years. Among his roles at Amazon, he was the CEO of Amazon’s first joint venture in India and a Board Member of Amazon’s payments business. The other members of the founding team consist of senior executives from Shiamak Davar & Byju’s.
Background
- At least 1+ years’ experience in back-end development in a fast-paced environment, working in Python & Django Framework
- Deep understanding of technologies used in web-deployed SaaS products, including Rest APIs
- Exposure to AWS, Azure or other cloud providers
Opportunity
We will share our workload as a team and we expect you to work on a broad range of tasks. Here’s are some of the things you might have to do on any given day:
- Developing APIs and endpoints for deployments of our product
- Infrastructure Development such as building databases, creating and maintaining automated jobs
- Build out the back-end to deploy and scale our product
- Build POCs for client deployments
- Document your code, write test cases, etc.
Skills
- Hands-on experience with Python (1+ years)
- Sound understanding of Postgres and NoSQL databases such as MongoDB
- Deep familiarity with UNIX, major cloud platforms (AWS, Azure), DevOps
- Understanding of databases, and related tools, paradigms


We are looking for an experienced Python developer who can help create dynamic software applications for our clients with their skill set. In this role, you will be responsible for gathering requirements from clients and accordingly write and test scalable code, and develop back-end components.
Technologies worked on:
Python - Django/Flask/FastAPI, Pytest/Unittest, AWS services.
Database - Postgresql/Mysql or NoSQL databases.
Requirement Description:
• Experience in designing,implementation & testing of Python Applications.
• Must have knowledge of at least one of python web framework Django/Flask/FastAPI and any of unit test frameworks(Pytest/Unittest).
• Should have a solid understanding of object-oriented programming (OOP).
• Well-experienced to perform Unit Testing and Integration Testing
• Have good experience in Agile based development approach.
• Expertise in developing enterprise-level web applications and REST/GRAPHQL APIs using
MicroServices, with demonstrable production-scale experience.
• Demonstrate strong design and programming skills ,writing optimized code.
• Working knowledge with SQL(MySQL,Postgresql etc) is mandatory and knowledge on NoSQL databases can be an addon.
• Understand Architecture Requirements and ensure effective design, development, validation, and support activities.
• Understanding of core AWS services, uses and basic AWS architecture best practices.
• Proficiency in developing, deploying, and debugging cloud-based applications using AWS.
• Ability to use the AWS service APIs, AWS CLI, and SDKs to write applications
• Ability to identify key features of AWS services while designing a solution.
• Identify bottlenecks and bugs, and recommend solutions by comparing the advantages and disadvantages of custom development
• Should contribute to team meetings, troubleshooting development and production problems across multiple environments and operating platforms
• Execute strong collaboration and communication skills within distributed project teams.
• Responsible for quality and timely deliverables for each given task.
• Knowledge on frontend technologies could be addon.


Fulfil’s software engineers develop the next-generation technologies that change how millions of customer orders are fulfilled by merchants. Our products need to handle information at massive scale. We're looking for engineers who bring fresh ideas from all areas into our technology.
As a senior software engineer, you will work on our python based ORM and applications that scales to handle millions of transactions every hour. This is mission critical software and your primary focus will be building robust and scalable solutions that are easy to maintain.
In this role, you will be collaborating closely with the rest of the team working on different layers of infrastructure in an international environment. Therefore, a commitment to collaborative problem solving, sophisticated design, and quality product are important.
What You’ll Do:
- Own definition and implementation of API interfaces (REST and GraphQL). We take pride in our 100% open API with over 600 endpoints.
- Implement simple solutions to complex business logic that enables our merchants to manage financials, orders and shipments across millions of transactions.
- Build reusable components and packages for future use.
- Translate specs and user stories into reviewable, test covered patches.
- Peer review code and refactor existing code.
- Integrate with our eCommerce partners (Shopify, BigCommerce, Amazon), shipping partners (UPS, USPS, FedEx, DHL) and EDI.
- Manage Kubernetes and Docker based global deployment of our infrastructure.
Requirements We’re Looking for Someone With:
- Experience working with ORMs like SQLAlchemy or Django (2-3 years)
- Experience with SQL and databases (Postgres preferred)
- Experience in developing large server side applications and microservices
- Ability to create high quality code
- Experience with python testing tools (pytest) and test automation
- Familiarity with code versioning tools like GIT
- Strong sense of ownership and leadership quality
- Experienced in the tools of our web stack- Python, Celery, Postgres, Redis, RabbitMQ
Nice to Haves:
- Prior experience at a growth stage Internet/Software company
- Experience with ReactJS, Google Cloud, Heroku
- Cloud deployment and scaling experience
Job brief
We are looking for an experienced Back-end developer to join our IT team. You will be responsible for the server-side of our web applications.
If you have excellent programming skills and a passion for developing applications or improving existing ones, we would like to meet you. As a Back-end developer, you’ll work closely with our engineers to ensure system consistency and improve user experience.
Ultimately, you should be able to develop and maintain functional and stable web applications to meet our company’s needs.
Responsibilities
- Participate in the entire application lifecycle, focusing on coding and debugging
- Write clean code to develop functional web applications
- Troubleshoot and debug applications
- Perform UI tests to optimize performance
- Manage cutting-edge technologies to improve legacy applications
- Collaborate with Front-end developers to integrate user-facing elements with server side logic
- Gather and address technical and design requirements
- Provide training and support to internal teams
- Build reusable code and libraries for future use
- Liaise with developers, designers and system administrators to identify new features
- Follow emerging technologies


