
About Duplex Technologies Services
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Role Overview
We are looking for an experienced Node.js Developer with deep expertise in backend engineering and related frameworks. The ideal candidate will be a strong problem solver, effective communicator, and proven mentor capable of leading development initiatives while ensuring code quality, scalability, and performance optimization.
Key Responsibilities
- Lead and contribute to multiple backend development projects ensuring high-quality delivery.
- Collaborate with business analysts, architects, and cross-functional teams to define technical specifications and gather requirements.
- Design and implement scalable, secure, and high-performance applications using Node.js and related frameworks.
- Develop detailed HLD (High-Level Design) and LLD (Low-Level Design) solutions.
- Mentor and guide junior developers, fostering knowledge sharing and growth.
- Participate in peer code reviews, ensuring adherence to best practices and coding standards.
- Optimize performance, concurrency, and scalability of applications.
- Implement CI/CD pipelines and ensure smooth deployment processes.
- Support and troubleshoot production issues, providing L3 support as required.
- Continuously research, evaluate, and integrate new technologies to improve applications and processes.
- Establish and enforce engineering best practices within the team.
- Actively participate in recruitment and talent-building initiatives.
Required Skills & Qualifications
- 5–10 years of strong professional experience in Node.js and frameworks like Express.js.
- Proficiency in MERN stack (preferred but must be heavy on Node.js).
- Strong understanding of multi-threading, concurrency, and performance optimization.
- Solid debugging, troubleshooting, and performance profiling expertise.
- Hands-on experience with source control systems (Git) and CI/CD environments.
- Familiarity with Agile methodologies (Scrum/Kanban).
- Strong knowledge of object-oriented and service-oriented application development.
- Excellent communication, leadership, and collaboration skills.
- Proven ability to work independently and in team settings with high ownership.
- Proficient understanding of AWS services, EC2, RDS, and S3
- Strong knowledge of Laravel REST API
- Understanding the fully synchronous behavior of PHP
- Understanding of MVC design patterns
- Good understanding of front-end technologies, such as JavaScript, HTML5, and CSS3
- Knowledge of object-oriented PHP programming
- Understanding accessibility and security compliance
- Strong knowledge of the common PHP or web server exploits and their solutions
- Understanding fundamental design principles behind a scalable application
- User authentication and authorization between multiple systems, servers, and environments
- Integration of multiple data sources and databases into one system
- Familiarity with limitations of PHP as a platform and its workarounds
- Creating database schemas that represent and support business processes
- Strong knowledge of MySQL and NoSQL as a plus
- Proficient understanding of code versioning tools, such as Git
What you will be Doing
- You will abstract away complex data interactions with easy-to-use APIs that will power several mobile and web applications.
- You will also own, scale, and maintain the computational and storage infrastructure for the various micro-services and long-running jobs, designed and implemented by you and the team.
- We will look to you to make key decisions on the technology stack, architecture, networking, and security. We love working with bleeding-edge technology, especially if it improves the malleability, and simplicity of our deliverables.
What you need
- The ideal Backend Engineers are polyglots who are fluent in HTTP and core CS concepts such as algorithms, data structures, and programming paradigms, and always pick the right tools for the right job.
- They have a keen eye for common security vulnerabilities and how to act on them (example: DDOS attacks, SQL Injection etc.).
- They understand what it takes to work in a startup environment and know when to trade performance for simplicity.
- They fail fast, learn faster, and execute in time.
- Strong communication skills, get-things-done attitude, and empathy
- Strong sense of ownership, drive and obsessive attention to detail.
- Comfortable with iterative development practices and code reviews
- Previous experience as part of a product-oriented team is a plus
Technical Skillsets:
NodeJS + Javascript, GoLang, Typescript + Nodejs, Clojure/Haskell/F#/Scala (languages/environments)
Koa, Express, Play (frameworks)
Asynchronous Programming Frameworks (Akka, Nodejs, Tornado)
MongoDB, postgres, Bigtable, Dynamo (databases)
Apache Kafka, NATS, RabbitMQ, ZeroMQ (queues)
FunctionalProgramming, FRP (functional reactive)
microservices, multi-tenant, distributed-systems, distributed-computing, event-sourcing
Good to have Skillsets:
Clojure/Haskell/F#/Scala
Apache Kafka, NATS
FunctionalProgramming, FRP (functional reactive)
event-sourcing
Koa
Why you should consider this role seriously?
- We have an audacious vision of helping companies fight counterfeiting and managing their supply chain more efficiently
- We have built a product and solved problems for some of the largest brands in the country and tested platform at scale (With our tags present in over 50 Million products already). We have plans to grow 10x in the next 1 year
- Ownership of key problems. Fast-paced environment
- We are a well-balanced team of experienced entrepreneurs and are backed by top investors across India and the Silicon Valley (Venture Highway, Startup Buddy etc.)
- Competitive market salary
- Opportunity to work directly with the CEO, COO, CTO of the company
- A chance to interact with top-notch executives from multiple industries
- Open vacation policy (and we really mean it!)
- Open Pantry
- As a team, we love to travel :). An off-site every quarter
Planning to Apply? Consider this:
Make sure you go through this section very carefully before applying. Here are the most crucial aspects on which we evaluate on:
1: FIT: “We’re on a crusade for something greater than any one of us”!
We are a tight-knit team that works and plays together where ‘fit’ is the most important point that you need to keep in mind while evaluating us- we will be spending a majority of our time together, in office, on calls, even weekends (sometimes) so you’ll really need to assess whether this is the right place for YOU to be in. Are you able to relate to or feel passionate about the problems we’re solving?
2: INTENT: “You won’t just be working with us, you would be investing in us!”
‘Why’ do you want to work with us? Why an early stage startup? Why Original4Sure? We are an industrious team, working tirelessly to achieve our goals so the work hours will be long and with it will come with a steep learning curve. Joining an early stage startup also means you’ll be asked to take on new things with little guidance and you’ll have to figure stuff out on your own, and in doing so, help shape the future of the company. Does that sound scary, exciting, both?
3: CAPABILITY: “Get work done!”
As long as you are working as hard as you can and giving it your best all day, every day, we will get along just fine. No one ever built one of the most valuable businesses in the World without the core team having to make a few sacrifices along the journey. It could be lesser time spent with your family or loved ones or finding lesser time to do to watch TV shows! But that's a call you need to make.
Description:
1. Hands-on backend web and API development experience.
2. Has strong MySQL and Database knowledge.
3. Working experience in building and deploying applications on servers like AWS, etc.
4. Good understanding of architectural patterns (e.g., MVC) is required.
5. Good communication and analytical skills.
6. Experience in building REST APIs in NodeJS and/or TypeScript.
7. Code repositories management in GIT.
8. Provide leadership to the team around new approaches, workflows, and technologies.
9. Experience in client requirement analysis and estimating projects timeline and efforts.
Responsibilities
He/She should be more pro-active on development with new flow design and security practices He/She will be developing new user-facing features Build reusable code and libraries for future use Optimize application for maximum speed and scalability Assure that all user input is validated before submitting to back-end Collaborate with other team members and stakeholders Use coding to develop the aesthetics implemented within a website or modules, including UI Elements
Qualification and experience
IT Industry overall experience should be minimum 2 Years Relevant Experience minimum should be 1yr in Drupal - Drupal Custom Module / Themes development Or Symfony development. ACQUIA Certification (Not mandatory)
Key skills
Experience in Core PHP using MVC and MVVM Architecture. Knowledge of database operations with MySQL/MariaDB, Stored procedures. Strong Knowledge of front-end technologies (HTML5, CSS3, JavaScript, jQuery). Knowledge and experience of OOPS. Ability to write APIs including Restful APIs. Knowledge of continous intergation practices like CI-CD. Strong documentation, communication, and team collaboration skills. Experience in iterative development methodologies like Agile / Scrum He should understand the technical feasibility of UI/UX designs Working experience with React / Angular, will be value added to the position (Not mandatory)
PHP Developers at EcoWell India are the backbone of our strategic initiatives to design, code, test, and provide industry-leading solutions to boost the business.
At EcoWell India, you will use the latest software development tools, techniques, and approaches and work with leading minds in the industry to build solutions you can be proud of.
Your Role and Responsibilities
As a PHP Developer, you will
1. Support DevOps implementations
2. Support automation assessments
3. Implement automation frameworks and approaches
4. Identify and analyze suitable opportunities for test automation
5. Utilize efficient and effective processes and standards to improve quality continuously
6. Understand the application Design / Layers
7. Develop back end components using REST services, Spring and Java
8. Develop UI components with Angular JS
9. Willing to work in Agile teams and take up challenging assignments
10. Relevant experience in Frontend UI Development
11. Work on modern web platforms
12. Work on Carbon testing framework
13. Supporting and fixing existing functionality
14. Designing and building application layers
15. Experience with RESTful API
16. Take the responsibilities of the latest web platform, database, API, caching layer, proxies, and other web services used in the system
17. Expertise in developing models and scalable Microservices components
18. Work on building integration flows on various Application Programming Interface (API) development platforms







