Sr. Software Developer

Job description

We are looking for an experienced Python developer to join our engineering team and help us create dynamic software applications for our clients. In this role, you will be responsible for writing and testing scalable code, developing back-end components, and integrating user-facing elements in collaboration with front-end developers.

Responsibilities:

• Coordinating with development teams to determine application requirements.

• Writing scalable code using Python programming language.

• Testing and debugging applications.

• Developing back-end components.

• Integrating user-facing elements using server-side logic.

• Assessing and prioritizing client feature requests.

• Integrating data storage solutions.

• Coordinating with front-end developers.

• Reprogramming existing databases to improve functionality.

• Developing digital tools to monitor online traffic.

Requirements:

• Bachelor's degree in Computer Science, Computer Engineering, or related field.

• 2-7 years of experience as a Python Developer.

• Expert knowledge of Python and Flask framework and Fast API.

• Solid experience in MongoDB, Elastic Search.

• Work experience in Restful API

• A deep understanding and multi-process architecture and the threading limitations of Python.

• Ability to integrate multiple data sources into a single system.

• Familiarity with testing tools.

• Ability to collaborate on projects and work independently when required.

• Excellent troubleshooting skills.

• Good project management skills.

SKILLS:

• PHYTHON
• MONGODB
• FLASK
• REST API DEVELOPMENT
• TWILIO

Job Type: Full-time

Pay: ₹10,000.00 - ₹30,000.00 per month

Benefits:

• Flexible schedule
• Paid time off

Schedule:

• Day shift

Supplemental Pay:

• Overtime pay

Ability to commute/relocate:

• Chennai, Tamil Nadu: Reliably commute or planning to relocate before starting work (Required)

Experience:

• Python: 1 year (Required)

Work Location: In person

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.

We are looking for an experienced Senior API Developer with expertise in Python to join our talented development team. The candidate should have over 8 years of hands-on experience in designing and developing APIs, with a strong emphasis on performance and scalability. Proficiency with Swagger/OpenAPI specifications is required. This role is pivotal to our mission of delivering top-tier solutions that power our core business functions.

Key Responsibilities:

• API Development: Design, develop, and maintain high-quality APIs using Python frameworks such as Django Rest Framework or FastAPI.
• Documentation with Swagger/OpenAPI: Employ Swagger/OpenAPI tools to produce clear and thorough API documentation.
• Integration: Implement and manage integrations between APIs and various internal and external services.
• Optimize Performance: Monitor and enhance the performance of APIs to ensure fast response times and low latency.
• Team Collaboration: Work closely with other developers, product owners, and stakeholders to understand requirements and deliver optimal solutions.
• Code Quality: Uphold best practices in code quality, testing, and deployment. Participate in peer code reviews.
• Debugging and Support: Troubleshoot and resolve issues in development, test, and production environments.
• Continuous Learning: Stay informed about emerging technologies and methodologies in Python and API development.

Qualifications:

• Education: Bachelor's degree in Computer Science, Information Technology, or a related discipline.
• Experience: At least 8 years of professional experience in API development with a focus on Python.

Technical Skills:

• Proficiency in Python programming language.
• Strong experience with API design, development, and RESTful services.
• Expertise with Swagger/OpenAPI specifications.
• Familiarity with Python frameworks like Django, Flask, or FastAPI.
• Experience with ORMs such as SQLAlchemy or Django ORM.
• Knowledge of version control systems, particularly Git.
• Experience working with relational databases like PostgreSQL or MySQL.

Soft Skills:

• Excellent problem-solving and analytical skills.
• Strong verbal and written communication.
• Ability to collaborate effectively within a team and across departments.

Preferred Qualifications:

• Experience with cloud platforms like AWS, GCP, or Azure.
• Knowledge of microservices architecture and distributed systems.
• Familiarity with CI/CD pipelines and tools like Jenkins or GitLab CI.
• Understanding of asynchronous programming and event-driven architecture.

What We Offer:

• Competitive Compensation: Reflective of your experience and the value you bring.
• Growth Opportunities: Support for professional development, training, and certifications.
• Flexible Work Environment: Remote work options and flexible hours to promote work-life balance.

Role Responsibilities:

• Development and Maintenance of REST APIs: Lead the creation and management of our RESTful APIs, ensuring top-notch performance and alignment with evolving requirements.
• Proficiency in Coding: We're in search of expertise in Python or equivalent programming languages. Your coding skills will play a pivotal role in delivering high-quality (efficient, reusable, testable, and scalable) solutions.
• Unit and Integration Testing: Apply your expertise to craft unit and integration tests, upholding code quality and reliability.
• Version Control Systems: Proficiency in Distributed Version Control Systems is vital for seamless collaboration during development.
• Elasticsearch Expertise: Having valuable experience with Elasticsearch is a plus, given its critical role in data retrieval and search functionalities.
• NOSQL Database Familiarity: Knowledge of NOSQL databases like Cassandra and MongoDB will be advantageous.
• Message Broker Knowledge: Understanding message brokers, especially RabbitMQ, is beneficial for effective communication within our systems.

Desired Qualifications:

• Experience: 1-2 years of hands-on experience as a Python developer.
• AWS: Proficiency in AWS cloud management and architecting enterprise data solutions.
• Pragmatic Problem-Solving: Recognize when a solution should be streamlined and when creating the right abstraction will lead to long-term efficiency gains.
• Passion for Quality: Demonstrate dedication to producing work of the highest quality and following best practices.
• Agile/Lean Process: Familiarity with Agile/Lean methodologies is a plus, reflecting your adaptability and collaborative spirit.
• Startup Mindset: Embrace the challenges and opportunities of a startup environment, contributing your skills and insights to our growth.
• Debugging and Optimization: Showcase excellent debugging and optimization capabilities to enhance system performance.
• Tech Awareness: Stay updated on emerging technologies and possess a solid understanding of the full product development life cycle.
• UX and Information Architecture: Exhibit excellent knowledge of mobile user experience, information architecture, and industry trends.

• Python. Django Rest Framework experience would be great, but not essential! We prioritise
• quality over quantity.
• Postgres with InfluxDB, Oracle, MySQL and Redis experience a plus.
• Docker, Kubernetes, Helm, OpenShift and associated tooling.
• AWS, especially ECS, Lambda, RDS and DynamoDB. Performance and uptime are super
• important to us.
• The challenge of scaling a global, distributed API to 10,000+ requests per second.
• We have SDKs in a bunch of languages, so the more polyglot you are the better.
• If you like writing JS and React that would be awesome too.