Fullstack Developer

Role & Responsibilities

Responsibilities

• Business: Immerse in operations until you think like an insider.

Rapidly acquire domain expertise through direct observation, translate between business and engineering seamlessly, and mentor engineers in your area on immersion. Influence senior stakeholders effectively, manage complex stakeholder landscapes with competing agendas, and build trust rapidly with new stakeholders.

• Delivery: Lead rapid delivery initiatives across teams in your area, coach on prototype-first approaches, and establish trust through consistent fast delivery. Build complete applications rapidly across any technology stack, select the right tools for each problem, and define clear criteria for prototype-to-production transitions.

• Generative AI: Architect RAG systems for complex use cases across teams, implement advanced techniques (hybrid search, reranking, query expansion), mentor engineers on RAG best practices, and establish RAG standards. Lead evaluation strategy across teams, establishing annotation guidelines, training human-calibrated LLM judges, and building evaluation pipelines that connect tracing to datasets to experiments.

• People: Build high-performing teams across your area, navigate complex interpersonal dynamics, foster psychological safety, and create environments where diverse perspectives are valued. Influence through communication at all levels — from frontline to executive. Handle difficult conversations skilfully and train engineers in your area on effective communication.

• AI-Augmented Development: Optimise AI tool usage across teams in your area, train engineers on AI-augmented and agentic engineering workflows, evaluate new AI development tools, and establish practices that balance AI speed with verification rigour.

• Scale: Design complex multi-component systems end-to-end, evaluate architectural options for large initiatives across teams, guide technical decisions for your area, and mentor engineers on architecture. Create debt reduction strategies across teams, influence roadmap decisions to include debt work, and teach engineers when to accept debt for speed versus when to invest in quality.

• Documentation: Define documentation standards across teams in your area, create documentation systems and templates, train engineers on spec-driven development, and ensure documentation quality across projects. Lead pattern generalization initiatives, defining criteria for when to generalize versus keep custom.

• Reliability: Define reliability standards across teams in your area, drive post-incident improvements systematically, design capacity planning processes, andmentor engineers on SRE practices.

Ideal Candidate

• Strong Staff Software Engineer / FDE profile (full-stack + production GenAI, multi-team technical leadership)
• Mandatory (Experience 1) – Must have 7+ years of relevant professional software engineering experience, with demonstrated full-stack delivery across backend and frontend.
• Mandatory (Experience 2) – Must have deep production experience with Python AND JavaScript/TypeScript, working comfortably across the full stack.
• Mandatory (Experience 3) – Must have 2+ years of experience in generative AI applications developement — LLM integrations, vector databases, RAG systems, and evaluation pipelines
• Mandatory (Experience 4) – Must have strong experience with modern frontend frameworks (Next.js / React) and backend API development.
• Mandatory (Experience 5) – Must have extensive experience with cloud platforms (AWS preferred; Azure/GCP valued), including infrastructure-as-code (CloudFormation / Terraform).
• Mandatory (Experience 6) – Must have working knowledge of multiple database paradigms — relational (PostgreSQL), document, and key-value (Redis) — with ability to select the right storage per problem.
• Mandatory (Experience 7) – Must have strong experience with CI/CD pipelines (e.g. GitHub Actions), containerization, and production deployment strategies.
• Mandatory (Experience 8) – Must have demonstrable fluency with AI coding tools (Claude Code, Cursor, GitHub Copilot, or similar) and proven ability to design agentic engineering workflows and train teams on them
• Preferred (Experience) – Advanced RAG techniques — hybrid search, reranking, query expansion — and establishing RAG standards across teams

At Wendor, we’re transforming the vending industry in India with our in-house designed, tech-enabled smart vending machines — already live in 70+ cities and expanding rapidly. We’re a focused, fast-growing team where everyone takes ownership and moves with purpose.

We are looking for a Senior Software Engineer to take end-to-end ownership of the software powering Wendor’s smart vending machines. In this role, you will architect and develop robust full-stack applications, integrate low-level systems on Linux, and lead a team of engineers to build scalable, real-time software solutions.

Your work will directly impact how users interact with our machines across 70+ cities. This is a hands-on role where you’ll collaborate with cross-functional teams, solve complex technical challenges, and contribute to innovations that push the boundaries of smart retail automation.

Key Responsibility:

● Develop and maintain full-stack applications (using technologies Node.js, React) to support Wendor's smart vending ecosystem, ensuring seamless frontend and backend functionality.

● Work on low-level integrations with vending hardware, optimizing performance and stability on Linux-based systems.

● Build and manage scalable backend services and RESTful APIs to handle real-time data, payments, and machine operations.

● Lead and mentor a team of 3–4 software engineers, conducting code reviews, guiding technical decisions, and ensuring timely deliveries.

● Write efficient SQL queries and manage data flow between services and databases to ensure reliability and responsiveness of the platform. ● Ideate, prototype, and implement new features, tools, or automations to improve product performance and internal processes.

● Collaborate with cross-functional teams including hardware, product, design, and operations to deliver integrated solutions.

● Ensure system reliability, performance, and uptime for software running on live vending machines across India.

● Maintain code quality through unit tests, integration tests, and E2E testing practices, following modern software engineering standards.

● Stay updated with emerging tech trends to help Wendor innovate faster and smarter.

Requirements:

● Proven experience as a Senior Software Engineer or similar role.

● Strong customer-centric mindset with a commitment to product excellence.

● Expertise in full-stack development (frontend + backend technologies).

● Ability to write clean, maintainable, and well-documented code.

● Passion for innovation, scalability, and problem-solving.

● Location- Gurugram(On-site).

• Efficiently realize the UI/UX needs and deliver excellent front-end features.
  
• Maintain quality of our SAAS platform and ensure responsiveness of applications/cloud-run services.
  
• Collaborate with the rest of the teams to design and launch additional/new features and services.
  
• Develop and maintain the source codes.
  
• Optimize and stabilize the overall service architecture (front) from both engineering and commercial point of view.

• Should be highly skilled in the MERN (MongoDB, Express, React, Node)stack.
  
• Should have knowledge of different React Hooks, and should be able to develop custom hooks.
  
• Should have an understanding of making good-looking plots, an understanding of D3.js is preferred.

• Implement best practices for the engineering team across code hygiene, overall architecture design, testing, and deployment activities
• Drive technical decisions for building data pipelines, data lakes, and analyst access.
• Act as a leader within the engineering team, providing support and mentorship for teammates across functions
• Bachelor’s Degree in Computer Science or equivalent job experience
• Experienced developer in large data environments
• Experience using Git productively in a team environment
• Experience with Docker
• Experience with Amazon Web Services
• Ability to sit with business or technical SMEs to listen, learn and propose technical solutions to business problems

·       Experience using and adapting to new technologies

·       Take and understand business requirements and goals

·       Work collaboratively with project managers and stakeholders to make sure that all aspects of the project are delivered as planned

·       Strong SQL skills with MySQL or PostgreSQL

• Experience with non-relational databases and their role in web architectures desired

 Knowledge and Experience:

• Good experience with Elixir and functional programming a plus

• Several years of python experience
• Excellent analytical and problem-solving skills
• Excellent organizational skills

Proven verbal and written cross-department and customer communication skills

Designation: Backend Developer

Location:  Mumbai (Currently Remote)

Principal Accountabilities:

• Develop, Enhance, and Modify Applications for a Global Market Environment.
• Design, Code, Test, Debug, and Document programs for corporate systems architecture.
• Work closely with Business stakeholders to define requirements for system applications

Work Dimensions:

• API integration, Application deployment, Test Driven Development & Agile methodologies
• Database designing ; (Knowledge of NoSQL databases is a plus).
• Familiarity in Unix/Linux development environments & tools including scripting.
• Designing system architecture for solving complex problems with a sound understanding of object-oriented programming and design patterns.

Work Context:

• A fast moving, high growth, entrepreneurial environment.
• Need to work on Git and work in a highly collaborative environment.
• Timely reporting is required.
• Must typically have in-depth knowledge of development tools and languages
• Ensure full legal and ethical compliance and conduct of business at all times and under all circumstances
• Attention to detail needed to maintain a global standard of work output
• Supervise, mentor, coach a small team of associates on a day to day basis for better management of their performance.

Role requirements:

• 2 to 6 years of experience in the IT industry
• 2+ years of experience in NodeJS
• Graduate degree (B.Tech/ BSc. IT) in IT/Engineering/Computer Science
• Strong problem-solving abilities
• Good communication skills.
• A good team player

• You will hold the beacon for development and user experience at a company while helping us scale from 3 million users to 50 million users
• Build performance and effective new features by participating in the overall application lifecycle
• Build modular, reusable, performant, and optimal features both in frontend and backend
• Code, debug, troubleshoot, deliver
• Help maintain and improve existing data structures while planning and implementing new model data structures for scalability
• Continuously improve stability and performance of company’s tech platform
• Be the user’s voice and help make product decisions
• Exhibits knowledge and behavior to adopt Information Security and Privacy practices at their work.

• 1 - 4 years experience as a Full-Stack Developer
• In-depth understanding of the entire web development process (design, development, and deployment)
• Proficiency with Nodejs, MongoDB, AWS.
• Proficiency with front-end languages (e.g. HTML, JavaScript, and CSS)
• Team Building & Leadership
• Want to interact with all levels of the company including senior leaders and cross-functional teams
• Love problem solving and thrive on handling multiple projects and tasks
• Foster strong professional relationships with the full organization
• Sense of ownership and pride in your performance and its impact on the company’s success

We are looking for people who have a passion for solving problems, can write exceptional code and don't shy away from challenges and new technology. Our products affect thousands of people everyday and we want someone who would love to contribute towards that end.

If you:

• Know how to write robust and reliable systems
• Have knowledge of managing and scaling for high volume traffic
• Are someone who enjoys execution of an idea as much as finding new and innovative ideas to solve problems
• Actively try to gain more knowledge and pass on knowledge to your peers

Then we are definitely a right match for you

What we expect from you:

• Excellent understanding of web applications.
• Good knowledge about AWS or similar services.
• Ability to quickly learn new technologies.
• Good understanding of the delivery pipeline in a team environment.
• Innovative and creative problem solving.
• Ability to understand and communicate across teams and departments.

What you will be doing:

• Work as a part of a team or individually.
• Build products that help us expand our portfolio and drive growth for the organisation.
• Take up ownership of the entire lifecycle of products.
• Help, mentor and guide interns, new joinees and other developers.
• Engage with the client and people from other departments to come up with the best solutions.
• Point out existing problems with our solutions, processes and architecture

What we look for:

• Should have used/contributed to popular Open Source Libraries and Tools
• Should have worked on web technology (Rails / SpringBoot / Django / NodeJs)
• Always on the cutting edge of technology.
• Ability to divide a larger problem into smaller pieces for everyone to work on.
• Process driven and detail oriented
• Should have mentored new joinees
• More than 3 years of relevant experience in the domain
• Should be able to work out of our Bangalore office.