* Optimize components for maximum performance across multiple devices and browsers
* Write performant REST APIs for both internal and external consumption
* Build micro services and their deployment process
* Work with problems of scale, leveraging technologies that are distributed in nature.
* Perform code reviews
- Excellent analytical and problem-solving skills
- Exposure in Python and backend development

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We’re hiring a remote, contract-based Backend & Infrastructure Engineer who can build and run production systems end-to-end.
You will build and scale high-throughput backend services in Golang and Python, operate ClickHouse-powered analytics at scale, manage Linux servers for maximum uptime, scalability, and reliability, and drive cost efficiency as a core engineering discipline across the entire stack.
What You Will Do:
Backend Development (Golang & Python)
- Design and maintain high-throughput RESTful/gRPC APIs — primarily Golang, Python for tooling and supporting services
- Architect for horizontal scalability, fault tolerance, and low-latency at scale
- Implement caching (Redis/Memcached), rate limiting, efficient serialization, and CI/CD pipelines
Scalable Architecture & System Design
- Design and evolve distributed, resilient backend architecture that scales without proportional cost increase
- Make deliberate trade-offs (CAP, cost vs. performance) and design multi-region HA with automated failover
ClickHouse & Analytical Data Infrastructure
- Deploy, tune, and operate ClickHouse clusters for real-time analytics and high-cardinality OLAP workloads
- Design optimal table engines, partition strategies, materialized views, and query patterns
- Manage cluster scaling, replication, schema migrations, and upstream/downstream integrations
Cost Efficiency & Cost Optimization
- Own cost optimization end-to-end: right-sizing, reserved/spot capacity, storage tiering, query optimization, compression, batching
- Build cost dashboards, budgets, and alerts; drive a culture of cost-aware engineering
Linux Server Management & Infrastructure
- Administer and harden Linux servers (Ubuntu, Debian, CentOS/RHEL) — patching, security, SSH, firewalls
- Manage VPS/bare-metal provisioning, capacity planning, and containerized workloads (Docker, Kubernetes/Nomad)
- Implement Infrastructure-as-Code (Terraform/Pulumi); optionally manage AWS/GCP as needed
Data, Storage & Scheduling
- Optimize SQL schemas and queries (PostgreSQL, MySQL); manage data archival, cold storage, and lifecycle policies
- Build and maintain cron jobs, scheduled tasks, and batch processing systems
Uptime, Reliability & Observability
- Own system uptime: zero-downtime deployments, health checks, self-healing infra, SLOs/SLIs
- Build observability stacks (Prometheus, Grafana, Datadog, OpenTelemetry); structured logging, distributed tracing, alerting
- Drive incident response, root cause analysis, and post-mortems
Required Qualifications:
Must-Have (Critical)
- Deep proficiency in Golang (primary) and Python
- Proven ability to design and build scalable, distributed architectures
- Production experience deploying and operating ClickHouse at scale
- Track record of driving measurable cost efficiency and cost optimization
- 5+ years in backend engineering and infrastructure roles
Also Required
- Strong Linux server administration (Ubuntu, Debian, CentOS/RHEL) — comfortable living in the terminal
- Proven uptime and reliability track record across production infrastructure
- Strong SQL (PostgreSQL, MySQL); experience with high-throughput APIs (10K+ RPS)
- VPS/bare-metal provisioning, Docker, Kubernetes/Nomad, IaC (Terraform/Pulumi)
- Observability tooling (Prometheus, Grafana, Datadog, OpenTelemetry)
- Cron jobs, batch processing, data archival, cold storage management
- Networking fundamentals (DNS, TCP/IP, load balancing, TLS)
Nice to Have
- AWS, GCP, or other major cloud provider experience
- Message queues / event streaming (Kafka, RabbitMQ, SQS/SNS)
- Data pipelines (Airflow, dbt); FinOps practices
- Open-source contributions; compliance background (SOC 2, HIPAA, GDPR)
What We Offer
- Remote, contractual role
- Flexible time zones (overlap for standups + incident coverage)
- Competitive contract compensation + equity
- Long-term engagement opportunity based on performance
Key skills : Python, Numpy, Panda, SQL, ETL
Roles and Responsibilities:
- The work will involve the development of workflows triggered by events from other systems
- Design, develop, test, and deliver software solutions in the FX Derivatives group
- Analyse requirements for the solutions they deliver, to ensure that they provide the right solution
- Develop easy to use documentation for the frameworks and tools developed for adaption by other teams
Familiarity with event-driven programming in Python
- Must have unit testing and debugging skills
- Good problem solving and analytical skills
- Python packages such as NumPy, Scikit learn
- Testing and debugging applications.
- Developing back-end components.
- Lead the development of the backend systems for our first product
- Build reliable, secure and performant backend systems
- Drive test coverage and continuous delivery automation within the team
- Mentor and provide feedback to teammates
Requirements
- 5+ years of software development experience
- Strong computer science fundamentals
- Deep and wide knowledge of Python ecosystem
- Can write code that is readable, maintainable, secure and performant
- Know the importance of tests and how to approach writing different types of tests
- Good intuition for REST API design
- Deep understanding of relational databases, transactions, entity-relationship modeling
- Comfortable writing highly concurrent systems
- Experienced in using profilers, tuning garbage collection, optimizing SQL queries
Position: Backend Developer
Organization: A Funded global healthcare platform connecting doctors, thereby enabling exchange of information on a quick and real time basis, founded in the year 2013.Currently there are 3 lakh doctors using this platform and everyday there are 400 new doctors joining it.
The platform promotes exchange of viewpoints, ideas, and information on various medical practices amongst healthcare professionals. This saves both time and money as solutions to several health issues can be accessed on a real time basis. There are 1.3 million registered doctors and 400+ daily publications on its platform and they operate across 16+countries.
Roles & Responsibilities
You’re Awesome At -
- Have strong experience in Python (FLASK framework).
- Have a Deep understanding of how RESTful APIs work.
- Familiar with various design and architectural patterns that can work at scale.
- Sound knowledge of NoSQL/SQL Databases (Mongo DB preferred).
- Strong experience with at-Cloud technology, preferably AWS or GCP, or Azure.
- Core experience in developing complex backend systems.
- Ability to communicate complex technical concepts to both technical and non-technical audiences.
- Passionate about application scalability, availability, reliability, and security.
Your Academic Qualifications -
BE/BTech in Computer Science preferred.
You’ll Be Improving & Responsible For –
- A team that is building products used by 300k + doctors every single day.
- Work on PetaByte Scale Streaming Systems - more than 500 million hours of video have been streamed.
- Lead high volume VOD streaming (think of systems as sophisticated as Netflix and Amazon prime).
- Challenge oneself on Security, Scalability, and Stability
- Maintain code and write automated tests to ensure the product is of the highest quality.
- Reach out to the open-source community to encourage and help implement mission-critical software fixes
Your Experience Across the Years in the Roles You’ve Played -
2-4 Years of experience in Backend Development.
Responsibilities
- Ideate, execute & take ownership of complete project from scratch
- Create and design User-focused focused SAAS with high end experience
- Optimize existing architecture for performance, scalability & functionality
- Generate modular & clean codes
- Deploy & maintain project’s infrastructure with zero downtime
Skill Sets
- Sharp communication skills
- Fluent in Problem Solving, Data Structures And Algorithms
- Strong in Java Spring Boot & Python Django languages & frameworks
- Experience with database design & familiar with RDBMS database like Postgresql as well as no SQL databases
- Good with writing unit test cases & integration test cases
- Well versed in writing Asynchronous codes or technologies
- Exposed to various AWS technologies like EC2, Cognito, API Gateway,ECS etc.
- Exposed to Pub-sub technologies like SQS,Kafka, RabbitMQ, etc.
- Familiar with caching tools like Redis, HazleCaste, etc.
- Exposure to DevOps and Big Data is a plus.
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.
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
- A Bachelors or master’s degree in engineering.
- 2-4 years of experience in software product development.
- Excellent in Data structure, Algorithms & Problem-solving skills.
- Should be willing to code in Node.js/Java/Python/ROR/Golang
- Write extensive, efficient code to address complex modules and that handles interaction between multiple components.
- Customer-focused, react well to changes, work with teams and able to multi-task.
- Must be a proven performer and team player that enjoy challenging assignments in a high-energy, fast growing and start-up workplace.
- Must be a self-starter who can work well with minimal guidance and in fluid environment









