Aimed at building a massive parallel economy, This For That, is looking for highly driven engineers to build out a world class product. The product is in its early stages so there’s a lot to learn and build from scratch. You will get to work alongside seasoned business and marketing professionals and become part of the core engineering team.
Ideal skills:
1) 2-5 years of professional JavaScript development experience
2) Understanding of asynchronous programming and its quirks and workarounds
3) Comfortable working through the entire stack from the user interface through systems levels
4) Understanding accessibility and security compliance
5) Strong Logical and Analytical Skills
6) Experience in consuming web services (REST) and processing data (JSON)
7) Experience with SQLite, NoSQL, Redis or other databases
8) Proven experience in building API services using NodeJS Express and related frameworks
9) Good understanding of NodeJS asynchronous runtime
10) Good understanding of JS concepts on callbacks and closures
11) Experience in debugging issues related to memory leaks
12) Experience in building highly scalable and high throughput services with sub-second response times
13) Experience with ElasticSearch/Solr
14) Experience working in a collaborative team environment
15) Ability to understand and analyse issues across multiple vendors and interfaces
16) Experience with NoSQL queries
17) Experience with AWS
18) Experience in managing/mentoring small teams
In depth knowledge of all of the above is not mandatory but the nature of the work will involve learning and getting involved with all of the above. You would be working directly with key members of the management team to define and drive technical strategy.
Experience in the mobile space is mandatory. Please only apply if you have been part of building a mobile product. Since our product is mobile only, it is essential that you understand implications on the front end.

About This For That
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Responsibilities
- Build and enhance backend features as part of the tech team.
- Take ownership of features end-to-end in a fast-paced product/startup environment.
- Collaborate with managers, designers, and engineers to deliver user-facing functionality.
- Design and implement scalable REST APIs and supporting backend systems.
- Write clean, reusable, well-tested code and contribute to internal libraries.
- Participate in requirement discussions and translate business needs into technical tasks.
- Support the technical roadmap through architectural input and continuous improvement.
Requirements
- Experience: 4 - 5 years.
- Strong understanding of Algorithms, Data Structures, and OOP principles.
- Integrate with third-party systems (payment/SMS APIs, mapping services, etc. ).
- Proficiency in Python and experience with at least one framework (Flask / Django / FastAPI).
- Hands-on experience with design patterns, debugging, and unit testing (pytest/unittest).
- Working knowledge of relational or NoSQL databases and ORMs (SQLAlchemy / Django ORM).
- Familiarity with asynchronous programming (async/await, FastAPI async).
- Experience with caching mechanisms (Redis).
- Ability to perform code reviews and maintain code quality.
- Exposure to cloud platforms (AWS/Azure/GCP) and containerization (Docker).
- Experience with CI/CD pipelines.
- Basic understanding of message brokers (RabbitMQ / Kafka / Redis streams).
- Build campaign generation services which can send app notifications at a speed of 10 million a minute
- Dashboards to show Real time key performance indicators to clients
- Develop complex user segmentation engines which creates segments on Terabytes of data within few seconds
- Building highly available & horizontally scalable platform services for ever growing data
- Use cloud based services like AWS Lambda for blazing fast throughput & auto scalability
- Work on complex analytics on terabytes of data like building Cohorts, Funnels, User path analysis, Recency Frequency & Monetary analysis at blazing speed
- You will build backend services and APIs to create scalable engineering systems.
- As an individual contributor, you will tackle some of our broadest technical challenges that requires deep technical knowledge, hands-on software development and seamless collaboration with all functions.
- You will envision and develop features that are highly reliable and fault tolerant to deliver a superior customer experience.
- Collaborating various highly-functional teams in the company to meet deliverables throughout the software development lifecycle.
- Identify and improvise areas of improvement through data insights and research.
- 2-5 years of experience in backend development and must have worked on Java/shell/Perl/python scripting.
- Solid understanding of engineering best practices, continuous integration, and incremental delivery.
- Strong analytical skills, debugging and troubleshooting skills, product line analysis.
- Follower of agile methodology (Sprint planning, working on JIRA, retrospective etc).
- Proficiency in usage of tools like Docker, Maven, Jenkins and knowledge on frameworks in Java like spring, spring boot, hibernate, JPA.
- Ability to design application modules using various concepts like object oriented, multi-threading, synchronization, caching, fault tolerance, sockets, various IPCs, database interfaces etc.
- Hands on experience on Redis, MySQL and streaming technologies like Kafka producer consumers and NoSQL databases like mongo dB/Cassandra.
- Knowledge about versioning like Git and deployment processes like CICD.
.Overall 5+ years of experience in application development using Java with creating and deploying microservices using the Spring Boot framework
• Strong experience in Maven.
• Good experience in unit(Junit) and integration testing.
• Experience in Microservices is a must.
Experience in designing and developing REST based services / Microservice development.
• Candidate should have good communication skills (written and verbal)
Excellent analytical and problem solving skills
Any one of these database Mongo, Maria, RMQ, Postgres, or other NoSQL servers
• Experience in AWS and CI/CD
5+ Years
Design, develop, and maintain robust, scalable, and secure backend services and APIs.
• Collaborate with frontend developers to integrate user-facing elements with server-side logic.
Write clean, efficient, and maintainable code following best practices and coding standards.
• Optimize performance and ensure high availability of backend services.
• Implement security measures to protect sensitive data and prevent vulnerabilities.
Design and manage databases, ensuring data integrity and efficient query performance.
Debug, troubleshoot, and resolve issues in production and development environments.
• Conduct code reviews and provide constructive feedback to team members.
Stay up-to-date with emerging backend technologies, frameworks, and best practices.
• Participate in Agile/Scrum ceremonies and contribute to sprint planning and estimations.
- Minimum 4 years’ experience developing Node.js applications on top of RESTful APIs.
- Experience building single page applications using JavaScript frameworks and libraries (React)
- Experience with cross-browser, cross-platform and design constraints on the web.
- Experience with test automation: TDD, unit/integration/functional testing.
- Solid understanding of object-oriented design and programming concepts.
- Have a passion for quality and writing clean, solid, readable code that scales and performs well.
- Proficient in Git and familiarity with continuous integration.
- A team player who values collaboration, innovation, and inclusion
- Comfortable working in an Agile environment
- Strong verbal and written communication skills
Key Responsibilities:
- SDLC development of product features, enhancements, UAT/production issues.
- Work with development team members for development of product features.
- Client-side and server-side development.
- Develop and manage well-functioning databases and application.
- Write/ design product APIs and write unit test cases.
- Follow standard agile scrum practices for software development.
- Peer review, pull requests, code refactoring and managing source code per standards and ensure quality.
Required Experience & Skills:
- 5+ years of software development experience using Microsoft .Net technology stack.
- Strong experience in .Net, .Net Core, C#, Entity Framework, SQL server, JavaScript, jQuery, etc.
- Experience in using unit test framework e.g., xUnit, Moq.
- Experience in Web API development.
- Experience in Agile / SCRUM development process.
- Good to have experience in Domain driven design development and Microservice architecture.
- Excellent communication and teamwork skills
- Good to have knowledge and experience in ABP.IO framework, Angular 8+, PostgreSQL and AWS cloud service and CI/CD process.
We are looking for an experienced Backend Engineer who can help make our desktop app even more spectacular for the highest performing professionals globally. She / he should be versatile and should have a good base with Golang, NodeJs and Python
About Track
The calendar is a tool that can assist you to achieve your highest human potential. Being productive with your time and collaborating efficiently with others is key to it. And Track (https://thetrackapp.com) is the fastest calendar experience ever. We've redesigned the calendar from the ground up to be fast, simple, effortless and also fun.
The Team
We are a small, global and efficient team and speed is part of everything we build and do
We are backed by amazing investors from India and US who have cofounded startups which had massive exits and the investors are currently on boards of Unicorn startups.
The Founder has over 12 years of experience in technology, studied and worked in the US for 8 years, and has cofounded a startup before.
Expected Skills :-
Primary expertise: Golang, NodeJs, Python
- Our backend was written in Nodejs and some parts converted to Golang. We want to switch completely
- Knowing Golang well is important
- You should know python / Django at a reasonable level
- Ability to work with GCP and AWS environments
Worked with Amazon services like SNS, SQS and Google services like Firebase FCM - Ability to execute rapidly
We are planning to expand our team to explore new opportunities and looking for creative, enthusiastic, and passionate individuals to join our team.
Job Description
- Engage in Node.js back-end development with MongoDB
- Work on Backend programming
- Work on databases
- Coordinate with front end teams for overall project overview
- Create User stories and UML, documentation of the business goals
- Must have knowledge of Node.Js, HTML, CSS
- Knowledge of git and AWS
- Proficient in Data Structures and Algorithms
- Good in Object oriented design
- Ability to work independently and manage the entire backend of all platforms associated with Rejolut
- Exemplary tasks – Explore something new every day!
- Responsibility – Bring in your own ideas and get supported in executing them.
- Fun – Experience a family culture & celebrate with the founders & team.
- Team – Be a part of a high-performance & cultural diverse team
- Freshers can apply
- Students in their last semester or passed out in 2020 can also apply
- Working days: Monday to Friday
- Timings: 11:00 am to 7:00 pm
- Duration of internship: 6 months/PPO(Performance Basis)
Stipend: INR 10,000 -15000 / per month
Please apply only if -
- You are available for the above said duration.
- You prefer to work in a fast paced environment with growth & learning opportunities
- If you have not applied for an internship before with us.
- have relevant skills and interests
Rejolut - As a Career Differentiator
- We are a young and dynamic team who are obsessed with solving futuristic and evolutionary business problems at scale with the next generation technology like blockchain, crypto and machine learning. Focuses on empowering people across the globe to be technically efficient, making advancements in technology and providing new capabilities that were previously thought impossible.
- We provide exposure to higher learning opportunities so that you can work on complex and cutting edge technology like React, React Native, Flutter, NodeJS, Python, Go, Svelte, WebAssembly. Strong expertise in blockchain and crypto technology and working with the networks like Hedera Hashgraph, Tezos, BlockApps, Algorand, Cardano.
- We maintain high end transparency with clients and employees as Visibility unlocks Efficiency and trust unlocks Visibility.
- Company is backed by two technology Co-founders, well-versed with consumer applications and their work has been downloaded millions of times and have led teams in leadership positions in companies like Samsung, Purplle, Loyalty Rewardz.
Benefits :
- Health Insurance
- Work from Home
- Fast growth and more visibility into the company
- Experience to work on the latest technology
- Competitive Learning Environment with supportive co-workers
- Employee friendly HR Policies
- Paid leaves up to certain limits
- Liberal working atmosphere
- Get mentored by the best in the industry
We are looking for a highly capable https://www.linkedin.com/feed/hashtag/?keywords=node&highlightedUpdateUrns=urn%3Ali%3Aactivity%3A6854010812688846849">Node.js https://www.linkedin.com/feed/hashtag/?keywords=developer&highlightedUpdateUrns=urn%3Ali%3Aactivity%3A6854010812688846849">Developer as part of our backend team for a mobile application.
You will be collaborating with our android developers, front-end application developers, designing back-end components, and integrating data storage and protection solutions.
To ensure success as a Node.js developer, you should possess extensive knowledge of Node.Js based services and experience in a similar role. An accomplished Node.js developer will be someone whose expertise results in the stable, fast, and secure exchange of data between servers and end-users.
Roles & Requirements:
Minimum 3 years of coding experience with Node.js.
Knowledge and understanding of Request, Response, and proficiency in REST-ful APIs.
Implementation of security like OAuth 2.0, OAuth 1.0, JWT, Basic Auth, and data protection.
Integration & Design of data storage solutions like MySQL, MongoDB,
Design, build and configure applications to meet business process and application requirements.
Extensive experience in using tools like Jenkins/ Git/ AWS Cloud.
Experience in writing Unit Tests and Test Frameworks.
Experience with Agile Development Model.
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.
Extensive knowledge of JavaScript, web stacks, libraries, and frameworks
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.
Thanks & Regards!
-Should be strong in complex problem solving, Data
Structure & Algorithms.
-Should be proficient in more than one Programming
language i.e Java, Node, Golang, etc.( Oops Languages & Concepts) and related frameworks.
-Should be comfortable with SQL, NOSQL databases.
-Should have comfortable writing Unit tests.
We're building the Country's first all-in-one payment interface and to make this dream a reality, we need some night-owls to build the systems which will power such an extensive product.
The number of years do not matter as long as you have a burning desire to learn more, constantly improve yourself and solving tricky problems on a daily basis. We're a small team so you can assure yourself that whatever you contribute - in terms of engineer, or otherwise - is always heard and discussed.
In terms of what we are looking for (must haves):
- experience with building high-frequency, low-latency, distributed systems;
- a solid understanding of Node.js; and
- experience with MongoDB and any relational database (Maria, MySQL, Postgres).
In addition to that, the following will make your application better (recommended):
- an understanding of Layer 3/4;
- experience with observable systems;
- hands-on-deck service resolution;
- understanding of and experience with security and services oriented architecture; and
- experience with building fault-tolerant systems.
If you're ready to buckle up and go on a wild adventure building Infino, get in touch with us.












