


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.

About O4S
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******
1) Node.js Backend Developer must have expertise in developing database with mongo db, backend, admin panel , web services, rest api, crude operation.
2) Must have expertise in cloud hosting, maintaining all server-side network components, command prompt.
3) Extensive knowledge of JavaScript, web stacks, libraries, and frameworks.
4) Can work individually or in a team , immediate joiner
5) Any other MERN / MEAN /PHP framework knowledge will be added plus
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Skills Required:
- Must-Have: Java, Spring/spring-boot, Data structure, Algorithm
- Any 2 (Must) out of the below-mentioned list :
a. JPA/Hibernate
b. Messaging queue/Kafka/SQS/distributed message/SNS/JMS
c. NoSQL/Aerospike/Reddis/Cassandra
d. Microservices
Roles and Responsibilities:
- Technical design, implementation, deployment, and support.
- Partner with Business Analysts to review and implement business requirements.
- Perform development and unit testing, working closely with Business.
- Mentors and oversees the development of resources, including reviewing designs and performing code reviews.
- Ensure designs are in compliance with specifications
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- Developing high-volume, low-latency applications for mission-critical systems and delivering high availability and performance
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- Should be well versed with Spring/Struts & Apache Camel (OSGI Framework)
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- Should have an understanding of working on Web Service (SOAP/REST) and Maven
- Build tools such as Jenkins
- Caching Technique(Radis, Hazlecast, Aerospike)
- Database Knowledge - Oracle, MySQL
C++ and QT mandatory and also should be very strong on Data Structures, Algorithms
Note: salary depends on current CTC.
Job Description
- Participate in feasibility analysis of requirements for implementation. • Contribute in technical discussions regarding requirements, implementation adopting best practices/ methodologies, platforms for development and support methodology.
- Estimation and timely implementation of requirement(s) by developing a modular, scalable, high-performance code by adopting best practices.
- Own up the defect free code delivery of module/application and provide support during integration/implementation.
- Bug fixing, code optimization.
- Collaborate with the testing team to understand and resolve the bugs.
Required Skills
- C++ QT framework user interface desktop application
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- Familiarity with system call wrapper library functions
- Thorough knowledge of Nginx , Redis,Kafka, RabbitMQ, MySql
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We are looking for a Backend Developer responsible for managing the interchange of data between the server and the users. Your primary focus will be development of all server-side logic, definition and maintenance of the central database, and ensuring high performance and responsiveness to requests from the front-end. You will also be responsible for integrating the front-end elements built by your coworkers into the application. A basic understanding of front-end technologies is therefore necessary as well.
* Integration of user-facing elements developed by a front-end developers with server side logic
* Building reusable code and libraries for future use
* Optimization of the application for maximum speed and scalability
* Implementation of security and data protection
* Design and implementation of data storage solutions
Skills:
* Good experience with backend languages PHP , NodeJS, Python.
* Knowledge with PHP framework CodeIgniter or similar.
* Knowledge with MySQL database and well-versed with writing complex queries.
* Version control, such as Git, CVS or SVN
* Knowledge of REST web services

Responsibilities
-
Writing scalable, robust,, testable, efficient, and easily maintainable code
-
Translating software requirements into stable, working, high performance software
-
Playing a key role in architectural and design decisions, building toward an efficient micro services distributed architecture
-
(Add other relevant responsibilities here)
Skills
-
Strong knowledge of Go programming language, paradigms, constructs, and idioms
-
Knowledge of common Goroutine and channel patterns
-
Experience with the full site of Go frameworks and tools, including:
- Dependency management tools such as Godep, Sltr, etc.
- Go’s templating language
- Go’s code generation tools, such as Stringer
- Popular Go web frameworks, such as Revel
- Router packages, such as Gorilla Mux
-
Ability to write clean and effective Godoc comments
-
Familiarity with code versioning tools (such as Git, SVN, and Mercurial)




● 3-6 Years of experience with a Bachelor’s/Master's degree in Computer Science, Math, or related
technical domain
● Skilled in software development lifecycle, and designing and developing large-scale, multi-tiered,
distributed software applications, tools, systems or services using Object Oriented Design,
distributed programming, Java, Python, Node.js.
● Knowledge of ORM tools like Hibernate, JPA.
● Good knowledge of one or more relational and NoSQL databases
● Experience in deployment of microservices over Amazon Web Services
● Experience in delivering quality products using microservices architecture.
● Knowledge of Agile methodologies & best practices for the full software development life cycle,
including coding standards, code reviews, source control management, build processes, testing,
and operations
● Strong hold on Data Structure, Problem solving skills
To succeed at Zest, you will need
● Ability to operate and communicate with every business unit and level of hierarchy
● High levels of energy and enthusiasm for all that you do
● Be someone who does not take “no” for an answer and pushes for continuous innovation and
evolution
● Have extremely high standards in everything you do – you will be required to keep raising the bar
● Ability to think big and to inspire a vision in others
● Kindness, warmth and a positive, optimistic attitude
And what do you get in return?
● Opportunity to be part of one of the most exciting consumer growth stories in the world
● One of the best funded and most far advanced companies in the space (investors are leading
global VCs)
● We will teach you all you need to know about “Fintech”
● Endless amounts of learning and development – formal and informal
● Ability to work with some of the best, nicest and most passionate people in the digital lending
industry – from all over the world
● Founders with the right vision and motivation to make this a success story
● Freedom to work how you like (we do not do ‘facetime’)
● A culture of trust and honesty – we will not second guess you
● A flat structure with minimal politics or hierarchy
● Recognition and respect for your work
● Market beating compensation and Equity ownership for the best candidate
● Lunch, great healthcare, decent coffee and a nice office.
•Development experience with object oriented JavaScript, ES6 Features
•Development experience with nodejs libraries like express, MySql, mongoose etc,
•Understanding the nature of asynchronous programming
•Hands on experience with MySql, MongoDB [RDBMS, No SQL DB]
•Able to write complex MySql queries, Stored procedure
•Familiarity with API optimization techniques
•Collaborating with front-end developers on the integration of elements.
•Must have knowledge of GIT, POSTMAN
•Good to have knowledge of KAFKA, REDIS



