MERN Stack Developer

About the Role

We are seeking an Engineering Manager to lead our engineering team in building and scaling complex products and integrations. Our systems are based on a microservices architecture, with a stack that includes Node.js (NestJS), ReactJS, GraphQL APIs, multiple databases (MongoDB, DynamoDB), and multi-cloud deployments (AWS & GCP).

You will play a critical role in ensuring that our software is secure, reliable, and scalable while enabling seamless integrations with platforms like Shopify, Easyecom, Clickpost, and a growing set of partner services that power our ecosystem.

Key Responsibilities

• Lead, mentor, and grow a team of backend, frontend, and full-stack engineers.
• Define and maintain technical direction for microservices-based systems and event-driven architecture.
• Guide engineers in building robust integrations with third-party platforms (e.g., Shopify, Easyecom, Clickpost) and internal services.
• Ensure best practices in API-driven development (GraphQL, REST, event streams) and system interoperability.
• Oversee cloud infrastructure across AWS & GCP, leveraging key AWS services (Lambda, S3, ECS/EKS, CloudFront, SQS/SNS, etc.) for distributed and scalable systems.
• Manage data infrastructure with MongoDB and DynamoDB, ensuring efficient, high-performance queries and resilience at scale.
• Partner with Product and Business stakeholders to align technical strategy with business goals.
• Implement processes for CI/CD, observability, incident management, and cost-optimized cloud operations.
• Conduct regular 1-on-1s, performance reviews, and foster a culture of psychological safety, accountability, innovation, and growth.

Qualifications

• 6+ years of software engineering experience, with at least 2+ years leading or managing engineering teams.
• Strong technical foundation in Node.js (NestJS), ReactJS, and API design (GraphQL, REST).
• Hands-on experience building and scaling microservices architectures.
• Familiarity with third-party integrations and e-commerce platforms such as Shopify, Easyecom, Clickpost, or similar services.
• Knowledge of working with MongoDB, DynamoDB, and distributed data systems.
• Expertise with AWS and GCP cloud environments (including container orchestration, serverless, and event-driven services).
• Experience implementing engineering best practices in CI/CD, observability, monitoring, and incident response.
• Strong leadership and people management skills with the ability to nurture talent, improve processes, and build a culture of excellence.

1. Understanding of python backend development ,with Django ot flask frame work
2.  Design, build and maintain responsive front-end interfaces for applications
3. Collaborate with the rest of the engineering team to design and launch new features
4. Create REST APIs and integrating them with the frontend
5. Test software to ensure responsiveness and efficiency

Preferring candidates from Ahmedabad / Bangalore specifically!

Thence is searching for a highly skilled and motivated individual who is enterprising and eager to make a significant impact in the service space by enabling exceptional products. The ideal candidate should have a robust technical background, outstanding leadership skills, and a proven track record of managing complex technical projects. Moreover, this role includes consideration for a Partner role after completing one year with Thence, accompanied by sizeable equity.

Reporting directly to the COO, you will have the opportunity to shape the direction of the company's growth by delivering digital products to clients across various verticals like healthcare, hospitality, manufacturing, etc.

If you are a motivated individual with a passion for driving business growth and creating lasting client partnerships, we encourage you to apply for this exciting opportunity to join our dynamic team at Thence.

Duties & Responsibilities

• Developing digital products, applications and minimum viable product (MVP), including defining the overall architecture and system design to meet business requirements.
• Enabling our client to select the appropriate technology stack, considering factors such as scalability, performance, security and maintainability.
• Designing and configuring the infrastructure to support the software application.
• Choosing the development toolkit, frameworks and libraries best suited based on business and project's needs.
• Crafting and executing database designs, ensuring data integrity, performance and scalability.
• Enhancing and optimising application architecture to improve efficiency, reliability, and scalability.
• Ensuring application scalability to handle increased user loads and data volumes effectively.
• Upholding quality assurance standards through code reviews, testing and continuous integration practices.
• Ensuring IP security by implementing robust authentication, authorisation and encryption mechanisms.
• Exploring and integrating new technologies to enhance the software's capabilities and keep it up-to-date with industry trends.
• Developing the startup's strategic resource allocation plan, including budgeting for technology investments and staffing needs.
• Ensuring efficient utilisation of technologies by optimising resource allocation and minimising waste.
• Assessing and integrating new systems and infrastructure to support the evolving needs of the organization.
• Deliver digital products to clients across various verticals, including healthcare, Fintech, hospitality, manufacturing, etc.
• Building, attracting and mentoring talented developers to foster a culture of learning, innovation and collaboration within the team.
• Collaborating closely with the sales team to ensure effective communication and strategic positioning of technology solutions, while continuously refining sales pitch strategies based on feedback and market trends to maximize success rates and drive revenue growth.
• Defining, managing and evaluating team members based on goals and performance metrics, providing status updates to the leadership team on a bi-weekly basis.
• Identifying process gaps and development inefficiencies within the organisation and defining and driving Standard Operating Procedures (SOPs) to address these gaps effectively.
• Generate business opportunities from existing clients and collaborate with the business team to convert new business.
• Work towards achieving annual and quarterly revenue targets.

Skills Required

• Strong business acumen, with the ability to make strategic decisions and take ownership of account growth, revenue and outcomes.
• Strong technical background with experience in managing complex technical projects encompassing diverse realms such as Web, Mobile, Applications (Apps), Augmented Reality/Virtual Reality (AR/VR), Artificial Intelligence (AI), and Machine Learning (ML).
• Extensive experience in establishing and refining processes and Standard Operating Procedures (SOPs) aimed at measuring and enhancing the quality and efficiency of development capabilities. This includes implementing frameworks to assess performance metrics, optimise workflows and drive continuous improvement across the development lifecycle.
• Excellent leadership skills and the ability to inspire and motivate teams.
• Proven track record of driving business growth and creating lasting client partnerships.
• Enterprising and adept at handling clients effectively.

Qualifications

The ideal candidate will be an inspiring and confident team player with:

• Bachelor's or Master's degree in Computer Science, Engineering or related field and/or significant relevant work experience
• Minimum of 4+ years of proven agency experience in software development projects.
• Experience in leading a team of highly skilled developers, engineers, and testers
• working on multiple client projects
• Experience managing products and projects, and delivering large scale technical solutions on time and on budget
• Excellent communication, interpersonal, and negotiation skills, with a track record of managing stakeholder expectations effectively.
• Familiarity with Agile methodologies and project management tools
• Experience with cloud-based technologies and infrastructure, microservices, and serverless architecture

Additional Opportunities:

After completing one year with Thence, high-performing individuals will be considered for a Partner role, with the potential for substantial equity ownership in the company.

Key Tasks & Accountability:

• Collaborate with development teams and product managers to create innovative software solutions.
• Able to develop entire architecture, responsive design, user interaction, and user experience.
• The ability to use databases, proxies, APIs, version control systems, and third-party applications.
• Keep track of new development-related tools, frameworks, methods, and architectures.
• The developer is in charge of creating APIs depending on the architecture of the production application.
• Keeping up with the latest advancements in programming languages and server apps.

Skills:

• Comfortable around both front-end and back-end coding languages, development frameworks and third-party libraries.
• Knowledge of React, Redux and API Integration.
• Experience with backend technology like NodeJs, Microservices, MVC Framework and Data Base connection.
• Knowledge on SQL/NoSQL such as MySql, mongoDB.
• Knowledge of cloud such as AWS.
• Team player with a knack for visual design and utility.

• Building interactive consumer data from multiple systems and RESTfully abstracting to the UI through a Node.js backend
• Define code architecture decisions to support a high-performance and scalable product with a minimal footprint
• Address and improve any technical issues
• Collaborate well with engineers, researchers, and data implementation specialists to design and create advanced, elegant and efficient systems

•  Worked on Angular 4 and above.

•  Develop, test, and deploy fast and scalable web apps
•  Designing and maintenance of fully functional large relational and
• non-relational databases
•  Server management and cloud-based infrastructure
•  Identification of application issues when deploying the apps
• App deployment on the cloud along with solving debugging issues
•  Coding architecture for frontend and backend
•  Collaboration with IT team, researchers, designers for designing robust apps and
• encouraging business goals
•  Creating features in apps that have a mobile responsive design
•  Testing applications and fixing bugs, along with security and data protection features
•  Establish code architecture decisions for supporting scalability and good features
•  Makes use of popular front-end frameworks like Bootstrap, LESS, etc and
• design UI components
•  Participation with developers for the creation of scalable RESTful APIs.
•  Conducting code reviews of peer developers.MUST HAVE:
•  Worked on Angular 4 and above.

SellerGeni is an early-stage VC Funded SAAS Product in the Ecommerce Growth space. Our products GrowZ and SmartPlug enable sellers on Amazon to grow their sales and improve the quality of their listings through automated tools. Our vision is to simplify Growth across all ecommerce channels. We make traffic generation as simple as launching a Shopify website. You will be working closely with key stakeholders across the organization and leading a team of motivated engineers and professionals trying to change the status quo in online business growth. Join us if you love solving real-world problems with technically robust solutions.

Open to SDE-2, SDE-3, FSE & SWE.

What you will be doing

• Write test-driven code for Client and Server side application
• Creating functional codes that implement product requirements
• Participating in the design and creation of scalable software
• Testing and fixing bugs and/or other coding issues
• Take ownership of code, tasks and system architecture
• Brainstorming to scale the system for millions of users
• Mentoring juniors and champion the Agile Development Practices

What you need to have

• Knowledge of Javascript back-end languages & frameworks (e.g NodeJS, ExpressJS, GraphQL, TypeScript etc)
• Knowledge of Javascript front-end frameworks (e.g.NextJS, ReactJS, Angular etc)
• Experience in SQL/NoSQL databases (e.g. MongoDB, MySQL, DynamoDB, etc)
• Experience in building and maintaining large-scale production (e.g Redis, Jobs, Queue, Async sockets, etc)
• Knowledge of modern javascript libraries (e.g JWT, Webpack, Browserify, jQuery, Bootstrap, Semantic etc)
• Decent understanding of networking technologies (e.g TCP, HTTP, websockets, server-sent events, etc)
• Excellent communication and teamwork skills
• Good understanding of System design, architecture and Web Security
• Knowledge of version control software like Git, Github, BitBucket

Nice to have

• GSoC (or) Open Source contributions
• Prior startup (or) SAAS product experience
• Experience with building B2B products
• Amazon SP-API, MWS and advertising API
• Consumer Web Development Experience for High-Traffic, queue based applications
• Software security and SDLC
• UI/UX Product design & decision
• Experience in development workflow integrations (e.g CI/CD, Docker, Kube, pods, etc)
• Experience in building REST APIs, server-side architecture
• Decent understanding of Cloud & DevSecOps (e.g ECS ELB, SSM, SQS, Lambda, Kafka etc)

Benefits

• Competitive Salary & Equity
• MacBook Pro
• Flexible Work Timings
• Work With Experienced Team (Ex Amazon, Paytm, Oracle & GSoCers)

Total Experience : 2-6 years Relevant Experience: 2-3+ years