
Job Type: Full Time
Location: Permanent Remote / Bangalore / Thane
Skills: PYTHON, Django, Reactjs, Vue, Flask
Job Description
Are you passionate enough to be a crucial part of a highly analytical and scalable user engagement platform?
Are you ready learn new technologies and willing to step out of your comfort zone to explore and learn new skills?
If so, this is an opportunity for you to join a high-functioning team and make your mark on our organization!
The Impact you will create in the Job:
- Build campaign generation services which can send app notifications at a speed of 10 million a minute.
- Leverage the power of Kubernetes to maintain clusters running inside VPC's across the world.
- Dashboards to show Real time key performance indicators to clients.
- Develop complex user segmentation engines which creates segments on Terabytes of data within few seconds.
- Use AWS products extensively across our services such as Kinesis Data Streams, Lambda, SQS etc. that form an integral part of our scalable and robust infrastructure.
- As an individual contributor, you will tackle some of our broadest technical challenges that requires deep technical knowledge, hands-on software development, technical leadership, and seamless collaboration with all functions.
- You will envision and develop features that are highly reliable and fault tolerant to deliver a superior customer experience.
- You will get an opportunity to work with some of the best talent in the country while learning from various highly-functional teams in the company.
- Plan and execute the roadmap with the engineering team to build and deliver next-generation systems.
- You will also collaborate with cross-functional teams to meet deliverables throughout the software development lifecycle.
- Identify and improvise areas of improvement through data insights and research.
What we look for?
- 4-7 years’ experience in full stack Python development
- Very strong analytic and problem-solving skills
- Solid understanding of a relevant and globally supported framework- both front-end and back-end, if necessary, for example - Angular, React, Vue, or Django/Flask.
- Solid understanding of engineering best practices, continuous integration, and incremental delivery.
- Proven experience on design and implementation of the overall web and database architecture and updated knowledge on the latest practices and associated versions.
- Ensuring the entire stack is designed and built for speed and scalability.
- Familiarity with RESTful API design.
- Knowledge of continuous integration and deployment.
- Familiarity with Server management and deployment on AWS/GCE.
- Sound knowledge of CSS pre-processors, bundlers, and associated languages/syntaxes/libraries like Sass, Less, and webpack
- Experience implementing testing platforms and unit tests.
What’s in it for you?
- Immense growth, continuous learning and deliver the best to the top-notch brands
- Work with some of the most innovative brains
- Opportunity to explore your entrepreneurial mind-set
- Open culture where your creative bug gets activated.
If this sounds like a company you would like to be a part of, and a role you would thrive in, please don’t hold back from applying! We need your unique perspective for our continued innovation and success!
So let’s converse! Our inquisitive nature is all keen to know more about you.

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Required Skills & Qualifications
- 4+ years of professional experience in backend development with Python.
- Strong hands-on experience with FastAPI (or Flask/Django with migration experience).
- Familiarity with asynchronous programming in Python.
- Working knowledge of version control systems (Git).
- Good problem-solving and debugging skills.
- Strong communication and collaboration abilities.
- should have a solid background in backend development, RESTful API design, and scalable application development.
Shift: Night Shift 6:30 pm to 3:30 AM IST
Position of the role
The Principal Engineer reports to the Domain Lead and plays a key role in driving the technical vision, strategy, and execution of development initiatives. The Principal Engineer collaborates with multiple teams to ensure that software solutions are scalable, cost-optimized, performant, and aligned with business objectives.
Result expectation in terms of result areas and core activities
The Principal Engineer is responsible for defining, designing, and overseeing the implementation of complex software solutions. This role involves deep technical expertise, mentorship, and architectural guidance across multiple teams. The Principal Engineer also acts as a thought leader, influencing technology choices, best practices, and innovation within the organization.
Main objectives of the role
✔ Leading the design and architecture of the software by following best practices that ensure scalability, maintainability, cost optimization, and high performance.
✔ Driving innovation and continuous improvements in software development practices.
✔ Providing technical mentorship and coaching to engineers across teams.
✔ Ensuring the successful delivery of high-quality software aligned with business requirements.
✔ Defining and maintaining coding standards, best practices, and governance frameworks.
✔ Collaborating with product management and other stakeholders to shape the technical roadmap.
✔ Identifying technical debt and implementing strategies to mitigate it effectively.
✔ Promoting a culture of continuous learning, knowledge sharing, and cross-team collaboration.
✔ Leading DevOps, CI/CD, and automation to improve software delivery processes and efficiency.
Specialisation
✔ Deep understanding of software architecture, system design, and performance optimization.
✔ Translating complex business requirements into scalable and efficient software solutions.
✔ Handling large data transformations and ensuring system efficiency under the required load conditions.
✔ Leading initiatives for modernizing the technology stack and implementing best practices.
✔ Ensuring that security, scalability, and maintainability are embedded into development processes.
✔ Driving research and development efforts to explore emerging technologies and their business impact.
✔ Enabling teams to develop and maintain high-quality software through code reviews, architecture guidance, and technical strategy.
✔ Collaborating with product owners and stakeholders to ensure that development aligns with business goals and user needs.
Key processes in the role
✔ Agile / Scrum / Kanban development methodologies.
✔ CI/CD and DevOps practices to streamline delivery.
✔ Cloud-native architecture, monolith and microservices-based development.
✔ Scalable and high-performance computing strategies.
✔ Secure software development lifecycle (SDLC).
✔ Data-driven decision-making.
✔ Performance optimization.
Key relationships (teams and/or position titles)
✔ Engineering Teams (Developers, QA, DevOps).
✔ Head of Engineering and Technology Leadership.
✔ Product Management and Business Stakeholders.
✔ Customer Success and Solution Architects.
✔ External Technical Partners and Vendors.
Requirements
✔ Bachelor's or Master’s degree in Computer Science, Software Engineering, or a related field.
✔ 10+ years of experience in software development, with a proven track record .
✔ Strong experience in Python and modern software engineering practices.
✔ Expertise in cloud computing platforms (AWS, Azure, or GCP).
✔ Experience in architecting and developing scalable, high-performance applications.
✔ Hands-on experience with CI/CD pipelines, DevOps tools, and automation.
✔ Deep understanding of microservices, monolith, APIs, and distributed systems.
✔ Strong experience with database technologies, including SQL and NoSQL.
✔ Excellent communication and leadership skills, with the ability to influence technical decisions across teams.
✔ A passion for mentoring, coaching, and fostering a strong engineering culture.
✔ Experience in defining and implementing technical governance and best practices.
Competences
✔ Strategic Thinking - 4
✔ Analytical Problem Solving - 4
✔ Technical Leadership & Mentorship - 4
✔ Communication & Collaboration - 3
Measures of success
✔ Technical leadership impact - measurable improvements in code quality, architecture, and scalability.
✔ Delivery of high-quality software within agreed timelines and business requirements.
✔ Successful mentorship - improvement in team skill levels, problem-solving capabilities, and innovation.
✔ Reduction of technical debt through strategic refactoring and modernization.
✔ Engineering team satisfaction - based on feedback and collaboration effectiveness.
✔ Improvements in system performance, stability, cost-optimization, and security.
✔ Adoption of best practices and emerging technologies across teams.
✔ Contribution to company-wide strategic initiatives through technical innovation and leadership.
About us:
HappyFox is a software-as-a-service (SaaS) support platform. We offer an enterprise-grade help desk ticketing system and intuitively designed live chat software.
We serve over 12,000 companies in 70+ countries. HappyFox is used by companies that span across education, media, e-commerce, retail, information technology, manufacturing, non-profit, government and many other verticals that have an internal or external support function.
To know more, Visit! https://www.happyfox.com/
We’re looking for a Senior Backend Engineer to join our engineering team to help build and maintain our growing list of products. You should have prior experience being responsible for building sufficiently complex features by yourself.
Responsibilities:
- Implement product features by writing clean, robust, reusable code with tests
- Conduct peer reviews to keep the codebase a great environment to work on
- Collaborate with Product Managers, Designers and Engineers to deliver high-quality features
- Bring new ideas and best practices to improve the team and the codebase
Requirements:
- 5+ years of professional work experience
- Proficiency in backend programming languages like Python
- Experience working with web application frameworks like Django
- Experience in building web services using relational databases like PostgreSQL or NoSQL databases like MongoDB
- Proficiency in writing highly performant and scalable code
- Experience in building REST APIs and a good understanding of best practices around building APIs
- Good communication skills with an ability to articulate your views
- Excellent analytical and problem-solving skills
Job Requirements:
· Bachelor’s degree (minimum) in Computer Science or Engineering.
· Minimum 5 years of experience working as a senior–level Software Engineer
· Excellent programming and debugging skills in RoR and Python
· Experience in web development and automation
· Experience developing on Windows and Linux systems
Although not required, the following are a plus:
· Experience working with Build scripts, Shell scripts, Makefiles
· Experience with Jenkins and other CI/CD tools
· Knowledge of RESTful web services and docker
Design, build, and maintain efficient, reusable, and reliable Python services &components
Ensure the best possible performance, quality, and security
Identify bottlenecks and bugs, and devise solutions to these problems
Help maintain code quality, organization
Understanding of established software development life cycles
Ability to prioritize and multi-task in order to meet deadlines
Resolves technical issues through debugging, research and investigation
Collaborate across various teams and with external clients
Contribute innovative designs and ideas for improving our company products and services
Required Skills Sets
Atleast 4+ years of experience in Design and Development with Python.
Experience in Flask / Django
Familiar with version control (Git)
Understanding of SQL
Strong Unit Testing practice
Understanding of design patterns, Microservices Architecture
Understanding of Scrum Agile methodology
Experience in data engineering & Docker is a plus.
Candidate Profile:
4+ Years of relevant experience with Python and its Principles.
Graduate in Computer Science or any related discipline (like BS / B.E. / B-Tech in Electronics,
Electrical, IT)
Responsibilities:
- Hand on experience in Golang/Python/Ruby on Rails /Node.Js
- Must have at least 1+ years of experience in Team Handling
✔ Defining the over all architecture and choose the best stack, components, and
subsystems for search & storage infrastructure
✔ Design & build user-friendly APIs for accessing the backend infrastructure
✔ Active mentoring on engineering best practices, reducing technical debt and
designing scale ready solutions.
✔ Proactively identify architectural gaps and enhancements and recommending
appropriate solutions.
✔ Work closely with the product and customer teams to effectively drive innovative
solutions and drive adoption of features.
Requirements
✔ Experience level 4+ years.
✔ A bachelor's or master’s degree in Computer Science/Software Engineering
✔ Production experience with a scalable search engine or building storage
infrastructure for scaled out consumer companies.
Key Skills:
1. One or more of Python/PHP/Ruby/NodeJS/Java
2. Sound object-oriented skills, including strong design patterns knowledge
2. REST APIs
3. MVC architecture
4. MySQL/PostgreSQL
5. Exp with at least 1 NoSQL databases MongoDB/Memcache/Redis/
6. Exp with search technologies Elasticsearch/Solr
7. Exp building messaging based asynchrounous systems RabbitMQ/Kafka/SQS/Celery will be added advantage
8. Exp with Django/Flask frameworks will be added advantage
9. Knowledge of software best practices like Test-Driven Development (TDD) and Continuous Integration (CI) will be added adnavtage
Requirements:
1. Developing software solutions in conjunction with Relational theory, Rest APIs and NoSQL database technologies
2. Knowledge of cloud based technologies in AWS or Azure will be added advantage
3. Understanding of RDBMS technologies like MySQL, PostgreSQL.
4. Hands-on with Version control systems (GIT, SVN) and Unix/Ubuntu.
5. Experience in requirement analysis, HLD, LLD, unit & integration testing.
6. Good hands on experience in debugging application issues
TL;DR
1) Top performer in the company
2) Has worked with product based startup company
3) Ambitious and hardworking











