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Senior Full Stack Developer – Job Description
Job Overview
Surety Seven Technologies Pvt Ltd is looking for an experienced and highly skilled Senior Full Stack Developer with strong expertise in Next.js, Node.js, and React.js. The ideal candidate will lead architecture decisions, build scalable applications, guide development teams, and drive technical excellence across projects.
This role requires strong ownership, leadership capability, and hands-on coding expertise in both frontend and backend technologies.
Key Responsibilities
- Lead the design and architecture of scalable full-stack applications
- Develop, maintain, and optimize web applications using Next.js, React.js, and Node.js
- Build robust RESTful APIs and backend services
- Ensure high performance, security, and responsiveness of applications
- Work closely with Product, Design, and QA teams to deliver high-quality features
- Conduct code reviews and maintain coding standards & best practices
- Mentor and guide junior and mid-level developers
- Manage CI/CD pipelines and deployment processes
- Troubleshoot complex production issues and provide solutions
- Contribute to technical documentation and system design discussions
Required Skills & Qualifications
- 5–8 years of experience in Full Stack Development
- Strong hands-on experience with Next.js, React.js, and Node.js
- Deep knowledge of JavaScript (ES6+), HTML5, CSS3
- Experience with MongoDB / MySQL / PostgreSQL
- Strong understanding of REST APIs, authentication (JWT/OAuth), and API security
- Experience with Git, CI/CD tools, and deployment on cloud platforms (AWS, Azure, or similar)
- Understanding of microservices architecture (preferred)
- Strong problem-solving and debugging skills
- Experience leading technical modules or teams
Able to manage product with millions hit and low latency
8 years plus overall
5 years plus on MEAN specially Backend ( Node.js,MongoDb)
Experience of 2-3 years as a Lead
Individual contributor
Recruit, Manage team members, write code, take ownership of product!
What You’ll Be Doing
- 🛠 Write code for web and mobile apps, fix bugs, and work on features that people will actually use.
- 💡 Join brainstorming sessions and help shape our products.
- 🚀 Things move fast here, and you’ll learn as you go.
- 🤝 Work closely with everyone—designers, developers, and even marketing folks.
- 🔧 Diving into Our Tech Stack: React, React Native Node, Express, Python, FastAPI, and PostgreSQL.
What We’re Looking For
We’re not looking for perfection, but if you’re curious, motivated, and excited to learn, you’ll fit right in!
For Backend Engineers
- 💻 Strong knowledge of Python, FastAPI, and PostgreSQL.
- 🔍 Solid understanding of Low-Level Design (LLD) and High-Level Design (HLD).
- ⚡ Ability to optimize APIs, manage databases efficiently, and handle real-world scaling challenges.
For Frontend Engineers
- 💻 Expertise in React Native.
- 🎯 Knowledge of native Kotlin (Android) and Swift (iOS) is a big bonus.
- 🚀 Comfortable with state management, performance optimization, and handling platform-specific quirks.
General Expectations for All Engineers
- 🛠 While you’ll be specialized in either frontend or backend, you should be good enough to fix bugs in both.
- 🔍 You enjoy figuring things out and experimenting until you get it right.
- 🤝 Great communication skills and a collaborative mindset.
- 🚀 You’re ready to dive in and make things happen.
Interview Process
If we like your application, Be ready to:
- Solve a data structures and algorithms (DSA) problem in your preferred programming language.
- Answer questions about your specialized area (frontend/backend) to showcase your depth of knowledge.
- Discuss a real-world problem and how you’d debug & fix an issue in both frontend and backend
Why Join Us?
- 💡 Your work will matter here—no busy work, just real projects with real outcomes.
- 🚀 Help shape the future of our company.
- 🎉 We’re all about solving cool problems and having fun while we do it.
Should have aldready worked as Lead and mentored and managed Junior Team Members
4Yrs + on MEAN Stack or if total Experience more than 6Yrs; 3years + Could be MEAN
Worked in Product Based COmpanies
Deisgn,Develop, Debug ,Deploy! All Individually
Micro Service Architecture
Experience in FIn-tech/Finance based companies are a plus!
AWS,Google CLoud & SOcket Programming
Worked on Angular 4+ (5,6,7,8)
Job Responsibilities:
The role is responsible for designing, coding, and modifying web apps, from layout to function and according to the specifications. Integrating data from various back-end services and databases.
Job Duties
• Candidate must have a strong understanding of UI, cross-browser compatibility, general web functions, and standards.
• The position requires constant communication with colleagues.
• Experience in working with distributed environments
• Deep expertise and hands-on experience with Web Applications and programming languages such as HTML, CSS, JavaScript, JQuery, and API.
Skills:
Proven working experience (2 years) in:
• Node.js
• Angular
• React
Employment Type
Full-time
Technical
- Own and Lead solution architecture of engineering solutions from product conception to launch involving a variety of technologies including but not limited to Core Java, Hibernate, Spring, AWS, MySQL, Oracle, No-SQL, Angular, Bootstrap, Apache CXF, Apache Lucene, Web Services (REST AND SOAP), AJAX, Dimension modeling, machine learning, data analytics etc. and ensure that the implemented solutions align with and support business strategies and requirements.
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Perform Technical feasibility; drive shaping up the product through its life cycle to ensure scalability, performance, security & compliance standards.
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Drive technical issues to closure with problem solving skills and ready to do hands on work.
-
Collaborate with delivery, engineering, quality, support, experience, program, and
infrastructure partners to achieve goals.
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Support new opportunities of growth and continuous improvement through lateral and
creative thinking
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Stay updated of new technologies and of changes in technologies that affect back-end and
front-end web development
Management
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Accountability for architecture, product excellence, decision-making, client communications,
and solution outcomes.
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Foster, facilitate, and furnish, timely decision-making across a broad network of
stakeholders, delivery partners, and operational teams.
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Coach and develop a team of outstanding individuals providing product engineering
development and support solutions.
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Build strong relationships with key business stakeholders across multiple business units and
be their trusted advisor.
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Help management establish processes and standards.
Skills & Qualifications Required:
-
**Should have scored 70% & above in 10th and 12th grade.
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A Minimum of a Bachelor’s degree in Computer Science or related software engineering
discipline, or equivalent
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15+ years in technical development and solution architecture for enterprise applications and
experience of working on full stack.
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Strong self-driven individual who can lead in a fast paced complex environment,
demonstrate problem solving skills in varied situations and take decisions taking all
stakeholders along.
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Thought leadership, curiosity of business and engineering processes and drive to keep in
pace with the new and emerging trends, technologies and innovations.
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Ability to manage partnerships with all areas and members of the business as well as all
levels of the organization.
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Excellent spoken and written communication with the ability to present complex ideas in a
clear, concise fashion to technical and non-technical audiences.
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Ability to lead from the front, willingness to be hands-on to get down and work with team to
understand and resolve problems.
Good to have:
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Experience building or managing distributed systems.
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Knowledge of data analytics and machine learning.
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Experience in the Fintech domain.
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Experience with Agile/Scrum development methodologies
About Us
Tyro.Fit is an interactive connected fitness platform, combining hardware, digital subscription content, and personal training services. Our products are designed to deliver the absolute best in-home workout experience:
- Studio hardware that looks beautiful in the home and is almost invisible
- Best-in-class trainers delivering the widest variety of workout content in an intimate 1:1 personal training format
- Personalized workout plans designed to help members achieve their fitness goals
The goal is to help make fitness efficient, effective, and convenient for our members, and to ensure they continue to enjoy using their Studio, day after day, for years to come.
Requirements
- 2+ years of professional software development experience, excluding internships
- 1+ years of experience contributing to the architecture and design (architecture, design patterns, reliability and scaling) of new and current systems.
- Programming experience with at least one modern language such as Java, C++,
- Development experience in Node.js and React
- Expertise with modern web technologies like TypeScript, ES6, Webpack, NPM
- Strong understanding of software architecture fundamentals, such as async programming, object oriented design, abstractions, software design, and multiple testing methodologies
- Experience in REST API Design, implementation and integration
- Expertise in client-side software structure and client-server integration
- Experience with Docker Containers, Docker Compose, Kubernetes.
- Experience with Agile (scrum) development process and tracking tools (JIRA/Confluence)
- Cloud management, deployment, and distributed systems architecture with Amazon Web Services
- Management of hosting environment, including database administration and scaling an application to support load changes
Authentication and Authorisation Related
- Experience with user authentication and authorisation between multiple systems, servers, and environments
- Knowledge in implementation of OAuth flows, OIDC, SAML, and token patterns.Worked with Oauth 2.0 and the flows- Code flow, Device flow, Client credentials flow
- Good understanding of different security areas specially access and identity management
VOD and Streaming Platform Related
- Experience working with web media APIs like Media Source Extensions, Encrypted Media Extensions, MediaCapabilities
- Experience working with bleeding edge web technologies like WebTransport and WebCodecs
- Experience with encoding (H.264/H.265), AWS Media Services (MediaLive/MediaPackage).
- Knowledge of video streaming technologies and DRM systems (HLS, DASH,etc)
Responsibilities
- Design, manage and develop technical requirements to build the VOD and streaming platform.
- Lead the development team on certifying the encoder/packager deliveries and provide technical production support for the real time encoder/packager.
- Design REST APIs and authentication and authorisation system.
What can you expect from us?
- 15-24LPA + ESOP Grants
- Part of the founding team - opportunity for rapid growth and a steep learning curve
- Flat hierarchies and open ear to your ideas/suggestions
Contact the job poster
Abhinav Sethi
Building Tyro.Fit | We’re changing how you workout with a revolutionary mirror-like home gym.
Full stack developer
Salary: 6-9 LPA
Location: Mumbai
About ZenOnco.io:
https://zenonco.io/">ZenOnco.io is the world’s first integrative oncology healthtech platform. At ZenOnco.io, we aim to extend life and improve the quality of life for cancer patients through integrative oncology treatment, which covers both medical treatment as well as complementary treatment (Nutrition, emotional wellness, fitness, and community support).
To provide the best medical treatment options to cancer patients, we have partnered with 50+ hospitals across India, and cover 1,000+ oncologists. We also provide patients access to a full range of diagnostic tests that are required to arrive at the most effective cancer treatment.
We heavily deploy technology in our operations, and have recently launched the world’s first Integrative Oncology Preliminary Assessment Report tool (ZIOPAR) to guide cancer patients free of cost on the possible treatment options based on their cancer profile, symptoms and other conditions.
We believe in innovation, dedication and commitment. While we have the thrill to seek out and capture the world, we are looking for a responsible partner in you. If you feel you can become one of us, apply today.
Company introduction video: https://bit.ly/ZenOncoIOintroduction">https://bit.ly/ZenOncoIOintroduction
Roles and responsibilities:
- Working on WordPress and CodeIgniter, involving CSS, PHP, JS, jQuery, SQL
- Designing and implementing new features and functionality
- Establishing and guiding the website’s architecture
- Ensuring high-performance and availability, and managing all technical aspects of the CMS
- Helping formulate an effective, responsive design and turning it into a working theme and plugin
- Convert comprehensive layout and wireframes into working HTML pages
- On-page SEO
Education and Experience:
- Graduate or Post Graduate (Preferred)
- Experience: 3+ years
- Ability to work on WordPress and CodeIgniter
- Good understanding of front-end technologies, including HTML5, CSS3, JavaScript, jQuery
- Experience building user interfaces for websites and/or web applications
- Experience designing and developing responsive design websites
- Ability to understand CSS changes to ensure consistent style across platforms and browsers
- Strong understanding of PHP back-end development
You will get:
- Some of the best people to work with (founders are IIM graduates and investment banker)
- An opportunity to make a difference in the lives of millions of cancer patients across the globe
- A great learning environment and opportunity to grow
Our ideal candidate is comfortable collaborating with Product Owners, UX and UI Designers, Data Scientists and senior technical team members to build sound solutions to complex business challenges. A Self-starter and problem-solver will thrive in this position.
You should be strong JavaScript developer comfortable in all areas of the software development lifecycle and have experience with React, Node, Mongo, MySQL and Express in a scalable production environment. Some Python and familiarity with AWS would be welcomed.
Focus Areas and Core Responsibilities
Accountable for day-to-day implementation and launch of product roadmap features and updates.
Collaborate with Data Science, Tech and UX teams to create systems design and information architecture based off of user stories and requirements. Ensure test cases are properly written.
Maintain and work on the continuous improvement and development of company tools.
Coordinate with dev ops and QA to ensure continuous integration and deployment of production ready code.
Skillset, Qualifications, and Experience
- 5+ years of web application development experience including strong working knowledge of JavaScript, ReactJS, NodeJS, Mongo and Express.
- Familiar with asynchronous programming and object-oriented programming best practices. Must have prior experience with MVC design pattern
- Experience with node and linux commands necessary for debugging installations and deployment locally and on cloud services such as AWS
- Strong familiarity with a variety of APIs and RESTful interfaces
- Familiar with various methods for performance optimization
- Ability to work with UX/UI team to create a frictionless user experience and pixel perfect web components and data visualizations
- Experience integrating security best practices into the SDLC
- Expert level Git, including branching and best practices to resolve merge conflicts
- 1+ years of Agile development experience
- Experience manipulating and working with data in a variety of forms: csv, xml, json, structured and unstructured
- Excellent communicator who can work independently and be a team player
- Passion for Technology: excitement for new technology, bleeding edge applications, and a positive attitude towards solving real world challenges
We are proud to be an Equal Opportunity/Affirmative Action Employer and committed to leveraging the diverse backgrounds, perspectives and experience of our workforce to create opportunities for our colleagues and our business. We do not discriminate in employment decisions based on any protected category.
We are looking for a full stack developer to produce scalable software solutions.
As a full stack developer, you should be comfortable around both front-end and back-end coding languages, development frameworks and third-party libraries. You should also be a team player with a knack for visual design and utility.
If you’re also familiar with Agile methodologies, we’d like to meet you.
Responsibilities:
- Developing front end website architecture.
- Designing user interactions on web pages.
- Developing back end website applications.
- Creating servers and databases for functionality.
- Ensuring cross-platform optimization for mobile phones.
- Ensuring responsiveness of applications.
- Working alongside graphic designers for web design features.
- Seeing through a project from conception to finished product.
- Designing and developing APIs.
- Meeting both technical and consumer needs.
- Staying abreast of developments in web applications and programming languages.
Requirements:
- Degree in Computer Science or related field
- Strong organizational and project management skills.
- Proficiency with fundamental front end languages such as HTML, CSS and JavaScript.
- Familiarity with JavaScript frameworks such as Angular JS, React and Amber.
- Proficiency with server side languages such as Python, Ruby, Java, PHP and .Net.
- Familiarity with database technology such as MySQL, Oracle and MongoDB.
- Excellent verbal communication skills.
- Good problem solving skills.
- Attention to detail.
Reporting directly to the Founder
The job requires a great deal of responsibility early on, but we're working on something exciting and there's lots of opportunity of growth and learning.
The job is full-time, remotely based, and with flexible hours.









