Python Developer

We're looking for a Senior Python Developer with experience to join our team. You will lead and contribute to Python-based software projects as a Senior Python Developer, ensuring code quality and efficiency.

Senior Python Developer Job Responsibilities

• Design and Development: Senior Python Developers are in charge of creating Python-based applications and systems. Their code is the foundation of all software projects, ensuring functionality and performance.
• Leadership & Mentorship: Senior Developers frequently take on leadership positions, guiding and mentoring junior developers. They give technical skills and ensure the team adheres to best practices.
• Collaboration: Working collaboratively with cross-functional groups is an important element of this role. They aid in the definition of project demands and specifications, ensuring that software meets business objectives.
• Code Quality Assurance: A Senior Python Developer's role includes code reviews. They ensure code quality, suggest areas for development, and ensure best practices are followed.
• Troubleshooting and Debugging: Senior Python Developers are in charge of finding and resolving code bugs. Their strong problem-solving abilities are put to use as they troubleshoot and debug software to ensure its flawless operation.
• Staying Informed: It is critical to stay current with the newest trends and standards in Python development. Senior Developers ought to be knowledgeable about new technologies and tools.
• Performance Optimisation: They are in charge of optimization and testing to ensure that software is functional and operates smoothly.
• Documentation: Proper code and technical specifications documentation is required to ensure that the development process is open and readily available to the team.

Senior Python Developer Requirements and Skills

• Educational Background: A bachelor's or master's degree in computer science or a related field is a good starting point for this position.
• Experience: 6+yr Proven experience as a Python Developer is required. A strong project portfolio reveals expertise and capability.
• Python Proficiency: A strong understanding of Python and its associated libraries is required. It is critical to have a thorough understanding of Python's capabilities and limitations.
• Web Frameworks: Knowledge of web frameworks such as Django or Flask is advantageous because it speeds up web application development.
• Database Knowledge: Understanding of relational and non-relational databases is frequently required. Understanding how to work with databases is essential for developing reliable software.
• Front-End Skills: Being familiar with front-end technologies such as HTML, CSS, and JavaScript can be a valuable addition to the skill set of a Senior Python Developer, particularly when working on web applications.
• Version Control: Working knowledge of source control systems such as Git is frequently required, as it aids in code integrity and collaboration.
• Problem-Solving Skills: Strong skills in problem-solving and attention to detail are required. Senior Python developers must be able to effectively identify and resolve issues.
• Communication and Collaboration: Effective communication and collaboration with team members and stakeholders are critical to the success of projects.
• Leadership Experience: Prior leadership or mentorship experience is a significant asset. The ability to mentor and lead junior developers is frequently required.

Job Description:

• Experience in Python (Only Backend), Data structures, Oops, Algorithms, Django, NumPy etc.

• Notice/Joining of not more than 30 days.

• Only Premium Institute- Tier 1 and Tier 2.

• Hybrid Mode of working.

• Good understanding of writing Unit Tests using PYTest.

• Good understanding of parsing XML’s and handling files using Python.

• Good understanding with Databases/SQL, procedures and query tuning.

• Service Design Concepts, OO and Functional Development concepts.

• Agile Development Methodologies.

• Strong oral and written communication skills.

• Excellent interpersonal skills and professional approach Skills desired.

About VisibilityStack

VisibilityStack helps businesses connect with people who are actively searching for the solutions they offer, both on Google Search and in the new wave of AI-powered search tools.

Our AI agents identify what your audience is looking for, create content that answers those questions, and structure it so Google and AI systems can easily understand and recommend it. We also strengthen your online credibility through strategic backlinks and a strong social presence.

Everything is guided by real-time data. We focus on what works, remove what does not, and keep your content working around the clock. The result is simple: the right people can find you, trust you, and reach out when they need what you offer.

The Role

We need a Senior Engineer who ships production code that scales. You'll be the technical anchor—building critical infrastructure, solving complex problems, and mentoring junior developers through code reviews and pair programming.

You'll shape our future in four key ways: writing the code that becomes our foundation, being a key voice in engineering hiring decisions, helping establish the processes and patterns everyone follows, and having significant input on product decisions—your technical perspective directly influences what we build, not just how we build it. This isn't about managing people or writing performance reviews—it's about technical leadership through excellence.

What's in it for you:

1. Own mission-critical systems end-to-end — Your code directly generates customer revenue
2. Skip the politics, ship products — No layers of approval, no enterprise bureaucracy
3. Shape product direction — Your technical insights influence product strategy, not just implementation
4. Learn cutting-edge AI in production — Work with LLMs, vector databases, and agent orchestration at scale
5. Shape technical decisions and processes — Your input matters on how we build, not just what
6. Accelerated growth path — As we scale, you choose: become our technical lead or remain a deeply influential IC
7. Direct founder access — Collaborate on product vision, not just execute specs

Location: Janakpuri, Delhi (Hybrid - Maker's Schedule)

Our Work Philosophy:

We follow the Maker's Schedule, not the Manager's Schedule. This means uninterrupted blocks of deep work when you're building, and high-bandwidth collaboration when we're solving problems together.

In Practice:

1. In-office days: Whiteboard architecture sessions, rapid product iterations, deep dives into product strategy, complex debugging that needs three minds on one problem
2. Deep work days: Uninterrupted coding from wherever you work best—home, office, or that coffee shop with perfect noise levels
3. Balance by design: We optimize for both intense collaboration and deep focus

The best technical breakthroughs happen in two modes: intense in-person collaboration where ideas bounce rapidly, and deep solo work where complex problems get solved. We protect both.

Responsibilities

Technical Excellence

1. Build production systems that handle millions of AI operations daily
2. Write complex integrations that others can't figure out
3. Solve scaling problems before they become emergencies
4. Implement robust error handling and monitoring
5. Own critical infrastructure components end-to-end

Architecture & Code Quality

1. Design APIs that won't need v2 in 6 months
2. Make pragmatic technical decisions (boring tech when appropriate)
3. Help establish engineering processes—from code review to deployment
4. Create patterns and standards other engineers can follow
5. Lead code reviews that teach, not just critique
6. Balance shipping speed with technical sustainability

Hiring & Technical Assessment

1. Conduct technical interviews for engineering roles
2. Design practical coding assessments that test real skills
3. Provide strong input on hire/no-hire decisions
4. Partner with founders on technical requirements for roles
5. Help close strong candidates by selling the technical vision

Mentorship & Collaboration

1. Pair with junior developers on complex problems
2. Share knowledge through code reviews and documentation
3. Unblock teammates when they're stuck
4. Work directly with founders on technical strategy
5. Partner with product team on feature design and technical feasibility
6. Turn product ideas into technical specifications
7. Work directly with founders on technical strategy
8. Turn product ideas into technical specifications

Requirements

Must Have

1. 5-7 years of software engineering experience
2. Expert-level Python development skills
3. Production experience with LLMs (OpenAI, Anthropic, not just prototypes)
4. Built systems that scaled (and dealt with the failures)
5. Strong debugging skills—you fix what others can't
6. API design that makes sense to other developers
7. Git workflows and collaborative development

Strong Advantages

1. Previous early-stage startup experience
2. Production experience with vector databases (Pinecone, Weaviate, pgvector)
3. Elasticsearch or search infrastructure expertise
4. Built revenue-generating AI/ML systems
5. Experience with high-volume data pipelines
6. Contributed to open source projects
7. Informal mentorship or tech lead experience

Tech Stack

1. Backend: Python, FastAPI, PostgreSQL
2. AI/ML: OpenAI APIs, LangChain, Vector DBs
3. Infrastructure: AWS, Docker, GitHub Actions
4. Search: Elasticsearch (evaluating alternatives)

What We Offer

1. Early employee equity and financial upside
2. No bureaucracy—your code ships to production
3. Work on genuinely hard technical problems
4. Learn from and contribute to cutting-edge AI systems
5. Clear growth path as the team scales

At LambdaTest, We help developers and testers fix their applications across a combination of 2000+ browsers and Operating Systems by providing a complete cross-browser ecosystem on the cloud. As Backend Developer You will work with other Developers throughout the Software Development Life Cycle.

You will join a dynamic and fast-paced environment and work with cross-functional teams to design, build and roll out product that deliver the company’s vision and strategy.

What’s the Opportunity?

• As a hands-on engineering professional, you'll stay on top of the details and will be more focused on building a better, more efficient program and creating the best user experience and 
• Support and collaborate with our service engineers in getting to the bottom of issues and come up with robust solutions.
• Produce high quality software that is unit tested, code reviewed, and checked in regularly for continuous integration.
• Participate in a culture of code reviews, writing tech specs, and collaborating closely with other people.
• Design distributed systems using micro services architecture would be plus.
• Implementing high performance and non-blocking systems to serve traffic heavy SaaS based product.

Requirements and qualifications-

• Bachelor's degree in Computer Science or equivalent combination of technical education with 2-4 Years of work experience.
• Experience with one or more general purpose programming languages, including but not limited to:Python, Golang, NodeJs 
• A solid understanding of software construction
• The ability to naturally follow good development practices like test automation, CI/CD, source version control, etc.

• 3 years Willing to take efforts to advance in the technology or learn new technologies.
• Solid understanding of OOPs concepts.
• Willing to take efforts to advance in the technology or learn new technologies.
• Good communication skills and a continuous learner.
• Experience working on waterfall or Agile (Agile model preferred)
• Solid understanding of Python scripting and/or frameworks like Django, Flask Back up RRS.

Should be highly Technical and hands-on experience in Artificial Intelligence and Machine learning and Python. Managing the successful delivery of projects by efficient planning and coordination.

KEY RESPONSIBILITIES OF THE POSITION :

• Create Technical Design for AI, Machine Learning, Deep Learning, NLP, NLU, NLG projects and implement the same in production.
• Solid understanding and experience of deep learning architectures and algorithms
• Working experience with AWS, most importantly AWS SageMaker, Aurora or MongoDB, Analytics and reporting.
• Experience solving problems in the industry using deep learning methods such as recurrent neural networks (RNN, LSTM), convolutional neural nets, auto-encoders, etc.
• Should have experience of 2-3 production implementations of machine learning projects.
• Knowledge of open-source libraries such as Keras, Tensor Flow, Pytorch
• Work with business analysts/consultants and other necessary teams to create a strong solution
• Should have in-depth understanding and experience of Data Science and Machine Learning projects using Python, R, etc. Skills in Java/C are a plus
• Should developing solutions using python in AI/ML projects
• Should be able to train and build a team of technical developers
• Desired to have experience as leads in designing and developing applications/tools using Microsoft technologies - ASP.Net, C#, HTML5, MVC
• Desired to have knowledge on any of the cloud solutions such as Azure or AWS
• Desired to have knowledge on any of container technology such as Docker
• Should be able to build strong relationships with project stakeholders

Keywords:

• Python
• Artificial Intelligence
• Machine Learning
• AWS
• Django
• NLP

We are looking for creative and smart candidates who are passionate about Web Development, can manage projects/teams and handle clients on a day to day basis.

The candidate must have 1 year - 2 years of experience.

We specialize in web-based software solutions for Finance, logistics, supply chain management, and inventory management. We have also created smart systems for several organizations and are relied on by organizations across India.