Sr. Shopify Developer

Apply: https://processity.ai/careers/fullstack-ai-engineer

BigMantra is a Vertical Autonomous AI Agent Builder — we build AI companies that go a mile deep into specific industries. Our products include Mantra Spaces (AI-powered UK HMO property management) and Verity Law (AI-powered legal conveyancing). Our team is small, our stack is modern, and your code ships to production the same week you write it.

We're looking for a Fullstack AI Applied Engineer who can build full applications end-to-end and wire AI agents into production systems that real users depend on.

WHAT YOU'LL DO

• Build and ship full-stack web applications using React / Next.js and Python / Node.js

• Design and implement AI agent workflows using LangChain, LangGraph, Claude Agent SDK, Agno, or similar

• Integrate agents with real-world APIs — Salesforce, Google Workspace, WhatsApp Business, email providers

• Build and optimize database layers — production SQL, schema design, RAG pipelines

• Own deployment and infrastructure — Docker services, CI/CD pipelines on AWS or Azure

• Write tests that matter — E2E, load tests, performance benchmarks

• Collaborate directly with the founding team on architecture and product direction

MUST HAVE

• 3+ years of professional software engineering experience

• Strong JavaScript / TypeScript — React, Next.js, Node.js in production

• Strong Python — backends, agent systems, data pipelines

• Hands-on experience with at least one AI agent framework (LangChain, LangGraph, Claude Agent SDK, Agno, or equivalent)

• Docker services for containerization and deployment

• CI/CD pipelines — GitHub Actions, GitLab CI, or similar

• Deployment experience on AWS or Azure

• Solid SQL and database skills — schema design, query optimization

GOOD TO HAVE

• Experience with autonomous agents — MCP (Model Context Protocol), skills, plugins, tool-use

• Memory and context management for long-running agents

• Prompt engineering and optimization

COMPENSATION & BENEFITS

• ₹30L – 50L per annum (based on experience)

• Equity / ESOPs — early-stage participation

• Remote-friendly — Coimbatore office available

• Learning budget — courses, conferences, AI tooling subscriptions

• Flexible hours — output over seat time

Must Have Skills: ● .NET Expertise: 8+ years of hands-on experience with C# and .NET Framework (preferably 4.8+), with deep knowledge of MVC5 architecture. ● Front-End Mastery: Advanced skills in Razor Views, Bootstrap 5, CSS/LESS, JavaScript, and JQuery for building modern, responsive UIs. ● Database Proficiency: Strong experience with MSSQL, including schema design, performance tuning, and writing complex queries and stored procedures. ● DevOps Knowledge: Proficient in IIS configuration, deployment automation, and CI/CD best practices. ● Team Leadership: Proven ability to lead and mentor development teams, manage project timelines, and deliver high-quality software. ● Problem Solving: Exceptional debugging, analytical, and troubleshooting abilities across the stack. ● Collaboration: Experience working in Agile/Scrum teams and participating in technical discussions and code reviews. 

Need High Level React Native Developer who has worked with multiple applications, Healthcare knowledge is preferable, Understand existing code and optimize it, along with create new functionalities and usability.

Should Understand Data and how to handle large volume of data in application both online and offline in application and communicate to our backend using Rest APIs

Experience Required :

- Must have hands on development experience of 4 to 8 years.

Skills Required :

Candidate must have good experience in the following :

- Angular JS/Vue JS

- Java script/Jquery

- ASP.Net,

- SQL Server

- C#/LINQ

- WEB API Good To Have :

1. DevExpress / DevExtreme Third Party Control

2. HTML, CSS.

Job Description
We are looking for Full Stack Engineer who can turn ideas into extremely reliable, beautifully written code that other people – or you, six months into the future – will find easy to comprehend and modify. You have mastered more than one technology stack in your life, and you are comfortable with the idea of mastering several more. You're competent at high levels and low levels. Technology is a means and not the ends for you.

Responsibilities
Lead and build team to deliver best product(s).
Work closely with client as they build  features, functionality and applications to make system best.
Develop visioning skills and ability to see the big picture
Implement and contribute to engineering practices and processes
Help your team decide what technologies to use. Every engineer is able to propose better ways to do things

Skills and Qualifications
Back End : NodeJS and / or PHP
Front End : ReactJs, Angular and / or PHP
Experience of full stack web development, JavaScript, HTML5, CSS3 and TypeScript. DevOps knowledge is a plus
Ability to clearly communicate technical issues to laymen and to translate their feedback
An inclination to contribute to the creative process
A devotion to delivering the best possible user experience
Technology expertise with insights about technology trends and solutions
Team-player, flexible and able to work in a fast-paced environment
Experience with MySQL, and/or Cassandra, MongoDB desired

1. We are looking for candidates who have good programming skills. Strong on data structures, algorithms, understand time space complexity, able to come up with multiple solutions and then arrive at most optimized one keeping in mind customer requirements. Should also be well aware of OO concepts. If he / she has a strong background on these areas ( in any programming language), half the job is done. – 50% weightage
2. Next the candidate should have worked on JS  with good hands on experience in a few projects mainly in backend development like making api calls, handling exception, models, data transformations, controllers etc.  – 20-30% weightage
3. The last would be having some experience in any one of react.js/ node.js or even angular.js since some of these are being used in the current project. – 20-30% weightage
4. Prefer candidates with Angular (ver 8+), react (ver 16+), Node (Ver 14+) and extremely good in JavaScript, HTML & CSS
5. Experience : 4-6 years relevant

• 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

Responsibilities:

• Developing and maintaining all server-side network components.
• Ensuring optimal performance of the central database and responsiveness to front-end requests.
• Collaborating with front-end developers on the integration of elements.
• Designing customer-facing UI and back-end services for various business processes.
• Developing high-performance applications by writing testable, reusable, and efficient code.
• Implementing effective security protocols, data protection measures, and storage solutions.
• Running diagnostic tests, repairing defects, and providing technical support.
• Documenting Node.js processes, including database schemas, as well as preparing reports.
• Recommending and implementing improvements to processes and technologies.
• Keeping informed of advancements in the field of Node.js development.

Requirements:

• Bachelor's degree in computer science, information science, or similar.
• At least two years' experience as a Node.js developer.
• Extensive knowledge of JavaScript, web stacks, libraries, and frameworks.
• Knowledge of front-end technologies such as HTML5 and CSS3.
• Superb interpersonal, communication, and collaboration skills.
• Exceptional analytical and problem-solving aptitude.
• Great organizational and time management skills.