HubSpot CRM Developer

As a Senior Backend & Infrastructure Engineer, you will take ownership of backend systems and cloud infrastructure. You’ll work closely with our CTO and cross-functional teams (hardware, AI, frontend) to design scalable, fault- tolerant architectures and ensure reliable deployment pipelines.

1. What You’ll Do :

• Backend Development: Maintain and evolve our Node.js (TypeScript) and Python backend services with a focus on performance and scalability.
• Cloud Infrastructure: Manage our infrastructure on GCP and Firebase (Auth, Firestore, Storage, Functions, AppEngine, PubSub, Cloud Tasks). 
• Database Management: Handle Firestore and other NoSQL DBs. Lead database schema design and migration strategies.
• Pipelines & Automation: Build robust real-time and batch data pipelines. Automate CI/CD and testing for backend and frontend services.
• Monitoring & Uptime: Deploy tools for observability (logging, alerts, debugging). Ensure 99.9% uptime of critical services.
• Dev Environments: Set up and manage developer and staging environments across teams.
• Quality & Security: Drive code reviews, implement backend best practices, and enforce security standards.
• Collaboration: Partner with other engineers (AI, frontend, hardware) to integrate backend capabilities seamlessly into our global system.

Must-Haves :

• 5+ years of experience in backend development and cloud infrastructure.
• Strong expertise in Node.js (TypeScript) and/or Python.
• Advanced skills in NoSQL databases (Firestore, MongoDB, DynamoDB...).
• Deep understanding of cloud platforms, preferably GCP and Firebase.
• Hands-on experience with CI/CD, DevOps tools, and automation.
• Solid knowledge of distributed systems and performance tuning.
• Experience setting up and managing development & staging environments. 

• Proficiency in English and remote communication.

Good to have :

• Event-driven architecture experience (e.g., Pub/Sub, MQTT).
• Familiarity with observability tools (Prometheus, Grafana, Google Monitoring).
• Previous work on large-scale SaaS products.
• Knowledge of telecommunication protocols (MQTT, WebSockets, SNMP).
• Experience with edge computing on Nvidia Jetson devices.

What We Offer :

• Competitive salary for the Indian market (depending on experience).
• Remote-first culture with async-friendly communication.
• Autonomy and responsibility from day one.
• A modern stack and a fast-moving team working on cutting-edge AI and cloud infrastructure.
• A mission-driven company tackling real-world environmental challenges. 

Job Role: Python Developer

Experience: 6 to 10 Years

Location: Bangalore

Responsibilities:

• Develop, test, and deploy Python applications.
• Build and maintain front-end components using JavaScript, jQuery, HTML, and CSS.
• Collaborate with teams to implement new features and optimize systems.
• Ensure code quality, security, and performance.

Required Skills:

• Strong Python experience (Django, Flask, or FastAPI).
• Proficiency in JavaScript, jQuery, HTML, CSS.
• Experience with relational databases (PostgreSQL, MySQL) and Git.
• Strong problem-solving and communication skills.
• Bonus: RESTful APIs, AWS/Azure, CI/CD pipelines.

• Software Engineering
  • Design and develop highly scalable, available, reliable, secure and fault tolerant systems with minimal guidance for a market leader in the logistics industry
  • Partner with team members on functional and nonfunctional requirements and spread design philosophy, goals and improve the code quality across the team
  • Research new technologies and tools that enable building the next generation of our services
  • Provide technology leadership to the team and foster engineering excellence
• Product Delivery
  • Partner with product managers to define and execute on the feature roadmap
  • Translate business requirements into scalable and extensible design
  • Coordinate with various cross functional teams on planning and execution
  • Maintaining automated build / test / deployment environments

• Software Engineering
  • Should have at least 3 years of hands-on experience in designing, developing, testing and deploying applications on Java, Ruby, Kotlin, Python, Node or Go for large scale applications
  • Deep knowledge of one of the programming languages they have experience in
  • Proficient in OOP and Design Patterns, experience with functional programming would be a plus
  • Data modelling experience in Relational Databases
  • Ability to design and implement low latency RESTful services
• Product Delivery
  • Ability to scope, review and refine user stories for technical completeness and to alleviate dependency
  • Well versed in working with agile methodologies which includes phases such as design, development, code review, testing and release management
  • Ability to have worked in a CI/CD environment, with hands on experience with Git or any similar source code management tools
• Product Maintenance

• Experience troubleshooting server performance issues such as memory tuning, GC tuning, resource leaks
• Continuously refactor applications to ensure high quality design

Must have:

• 8+ years of experience with a significant focus on developing, deploying & supporting AI solutions in production environments.
• Proven experience in building enterprise software products for B2B businesses, particularly in the supply chain domain.
• Good understanding of Generics, OOPs concepts & Design Patterns
• Solid engineering and coding skills. Ability to write high-performance production quality code in Python
• Proficiency with ML libraries and frameworks (e.g., Pandas, TensorFlow, PyTorch, scikit-learn).
• Strong expertise in time series forecasting using stat, ML, DL and foundation models
• Experience of working on processing time series data employing techniques such as decomposition, clustering, outlier detection & treatment
• Exposure to generative AI models and agent architectures on platforms such as AWS Bedrock, Crew AI, Mosaic/Databricks, Azure
• Experience of working with modern data architectures, including data lakes and data warehouses, having leveraged one or more of the frameworks such as Airbyte, Airflow, Dagster, AWS Glue, Snowflake,, DBT
• Hands-on experience with cloud platforms (e.g., AWS, Azure, GCP) and deploying ML models in cloud environments.
• Excellent problem-solving skills and the ability to work independently as well as in a collaborative team environment.
• Effective communication skills, with the ability to convey complex technical concepts to non-technical stakeholders

Good To Have:

• Experience with MLOps tools and practices for continuous integration and deployment of ML models.
• Has familiarity with deploying applications on Kubernetes
• Knowledge of supply chain management principles and challenges.
• A Master's or Ph.D. in Computer Science, Machine Learning, Data Science, or a related field is preferred

Zerozilla Infotech Pvt Ltd is a team of highly creative professionals creating seamless

web solutions ranging from web designing and development, mobile application,

custom software development, and digital marketing services for businesses.

We work with B2B, B2C companies, government bodies, institution-led and independent start-ups to generate value and give them a competitive edge.

We are experts with over Six years of experience in providing comprehensive and

unified solutions to your business challenges. With over 120 active clients and 150

projects to our credit, we continue creating innovative solutions to drive business

growth. Our working process involves four crucial steps- research, brainstorming

ideas, optimization, and achieving the target.

We deliver cutting-edge technology-driven solutions for your business including

ROI-driven marketing campaigns, online branding, and communications,

customized mobile application development, and more which are designed bearing

in mind your business requirement.

Job Description: Node JS Developer ( JD 102)

No of Position : 45

• Programming in Node.js

• Experience with server-side templating languages

• Experience with Express.js, Loopback, Sails JS, Meteor.js or other

frameworks.

• Experience consuming and building robust, SOAP and REST ful APIs

• Experience with Relational Databases like Mongo DB, MySQL

• Solid understanding and extensive experience with version controltools like

Git, SVN or Mercurial

• Exceptional problem solving and ability to work independently

• Exceptional learning skills

• Understanding of Agile methodologies

• Knowledge of writing efficient codes.

• Understanding front-end applications.

• Working with authorization and authentication of the user.

• Having error-handling skills.

• Creating database schemes and many more.

• Using third party with services with developed system.

Basic Requirement

• A Bachelor’s Degree in computer Science, Computer Engineering, Electrical

Engineering or equivalent.

• Minimum of 2+ years’ Experience in Software Development Organisation

required.

• Strong Communication skill and problem solving skill

• Ability to take ownership of work stream, operate without close supervision

and work across the organisation

• Self-discipline in order to finish work on a timely basis.

Are you passionate about using technology to make people's lives better? Are you interested in becoming a part of one of the hottest trends in the world of start-ups today? Are you excited about joining the online ultra-fast grocery delivery service business pioneer and driving the trend forward? Then this may be the right opportunity for you.

Role and Responsibilities

1. Helping lead the software development lifecycle: technical design, implementation, testing, deployment, and support.
2. Working with cross-functional teams effectively to enable business growth.
3. Proactively identifying engineering bottlenecks and initiating proposals to improve them.
4. Writing high-quality, well-tested code in alignment with industry-wide best practices.
5. Applying a product mindset to back-end systems.
6. 1.  

1. About five years of experience delivering product-quality code in an agile set-up
2. Experience with Node.js (Hapi, Restify, Express, Mongoose, Socket.IO, Mocha)
3. Experience with Elasticsearch
4. Experience building and deploying Docker containers
5. Strong general Linux experience
6. Extensive experience with REST APIs
7. Experience with microservice architecture
8. Experience with MongoDB
9. Expert knowledge of Redis and caching strategies
10. Strong knowledge of unit/integration testing, including the art of mocking and writing testable code

1. Passionate about technology and making an impact.
2. A perpetual learner, who stretches their boundaries and enjoys new ideas.
3. A doer who takes initiative and works well in a team.

Blok is a technology-first online ultra-fast grocery delivery service business, and we are on our way to revolutionize how millions of people across countries consume groceries. We believe in a world where getting everything you need, when you need it, sustainably, is the new normal. And it takes less than 10 minutes.

We believe we are positioned to lead this revolution. Why? Our founding and early team have held senior positions at Deliveroo, Uber, Glovo, Mercadona, or Unilever. We have done this before, and we believe we can do it again. But this time, even better.

Embark on the journey and help us launch the revolution in one of the highest growth industries of the year. Help us shape the new normal.

• Design and implement high performance server side application solutions for the targeted domain.
• Develop integrated solutions between the product server side components and customer systems.
• Participate in the full life-cycle development process from software definition, through design, development, test (Unit & Integration), release and maintenance.
• Developing JSON, REST and SOAP APIs/web services.
• Code review and code management on versioning control system.
• Document the development process, architecture, and standard components
• Collaborate with different teams
• Mentor team members
• Keep abreast of new trends and best practices in web development

• In depth knowledge of object-oriented PHP and Laravel Framework
• Must have previous experience in development of high-end web applications in PHP, MYSQL and AJAX
• Previously built applications/websites in MVC frameworks, especially CodeIgniter
• Strong understanding of front-end technologies, such as JavaScript, HTML5, and CSS3
• Strong knowledge of JavaScript and JavaScript frameworks, preferably jQuery
• Proficient understanding of code versioning tools, such as Git, Bitbucket
• Familiarity with SQL/NoSQL databases and their declarative query languages
• Familiarity with limitations of PHP as a platform and its workarounds
• Strong knowledge of coding best practices, server deployment and troubleshooting