lives of API developers and consumers easier. If you love thinking big and delving deep and
enjoy envisioning truly elegant solutions, this role is definitely for you.
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

About O4S
About
Connect with the team
Similar jobs
We’re Hiring Backend Developers | Java / Go / Python | 3–5 Years | Bangalore
We are expanding our engineering team and looking for talented Backend Developers with 3–5 years of experience to join us in Bangalore.
If you enjoy building scalable systems, working with modern cloud technologies, and solving complex problems, this opportunity is for you!
💼 Position
Backend Developer (Java / Go / Python)
📍 Location: Bangalore
👨💻 Experience: 3–5 Years
🔎 What You Bring
✔ Strong proficiency in Go or similar backend languages like Python with Fast API or JAVA with Springboot .
✔ Experience designing RESTful APIs
✔ Hands-on experience with AWS / GCP
✔ Experience working with PostgreSQL, Redis, Kafka, or SQS
✔ Strong experience with Microservices architecture
✔ Hands-on experience with CI/CD pipelines
✔ Experience with containerized environments (Docker / Kubernetes)
✔ Familiarity with monitoring tools like Prometheus, Grafana, and Spring Actuator
✔ Strong understanding of data structures, algorithms, and system design fundamentals
✔ Ability to own features end-to-end and solve complex engineering problems
✔ Strong focus on code quality, observability, and operational ownership
✔ Comfortable working in fast-paced, high-growth environments
Integration Lead
Job Description
This role must be capable of building Dot net application and integration capabilities to enable microservice architecture. In addition to being hands on developer, the role requires the individual to leading and work with Dot net developers and integration developers, overseeing the end to end technical working to deliver features. Candidates who like to experiment and learn/discover new technologies, methods, tools with a direction to bring new capabilities to the product will be suitable
Key Responsibilities
- Perform Product Discovery proof of concepts as directed by Product manager
- Design, develop, and maintain both new and existing code, ranging from client-side development using JavaScript, HTML, and CSS, to server-side code using C# and ASP.NET MVC, Web API, Windows services, and ADO.NET for data persistence and retrieval.
- Write readable, extensible, testable code, while being mindful of performance requirements. • Create, maintain, and run unit tests for both new and existing code, with a goal of delivering defect-free and well-tested code to QA.
- Capable of developing restful services using Dot net framework and other integration tools
- Work with management to create and adhere to schedules, while maintaining flexibility to adapt to shifting market demands.
- Translate mockups and wireframes into functioning front-end code.
- Write and maintain documentation for new and existing features.
- Keep up-to-date on best practices and new technologies.
- Rapid prototyping, and presenting conceptual design and working prototypes to management.
- Conduct design and code reviews and collaborate to ensure your own code passes review.
- Work with Product Management to analyze require
Required Skills & Experience
- Experience in Dot Net framework preferably in cloud based platforms/infrastructure
- Experience in integration enablement preferably in REST APIs
- Experience in Database languages and stored procedures, database query optimization
- Experimental knowledge in a broad technical aspects like SSO (SAML2/Oauth2), Security, RPA, Microservices architecture
Qualifications
BE with 6+ years of experience in product development
Skills Required:
- Good experience with programming language Python
- Strong experience in Docker.
- Good knowledge with any of the Cloud Platform like Azure.
- Must be comfortable working in a Linux environment.
- Must have exposure into IOT domain and its protocols ((Zigbee & BLE ,LoRa,Modbus)
- Must be a good team player.
- Strong Communication Skills
Position: Sr. Developer / Lead Developer
Experience: 4 - 9 Years
Work Location: Remote - Work from anywhere / Technopark, Trivandrum
Qualification: B Tech / BE / BCA / MCA / BSC Computers
Skills: Odoo ERP , Python, Postgresql, MYSQL
Required Technical Competency & Qualifications
v In Depth understanding of Odoo ERP and all the default Odoo modules.
v Good Knowledge in ORM methods, Python and JavaScript.
v Strong Knowledge on API integration.
v Capable of working on Odoo framework on existing app and custom module.
v Enhance applications, develop and configure features and functionalities that support business requirements
v Good Knowledge in code repositories- Github.
v Should have good technical support skills.
v Good Analytical, Communication and interpersonal skills.
v Ability to work with a close bound team structure.
v Ability to work under minimal supervision.
v Should be able to work in client facing roles.
Programming Languages: Perl, Python, java. Perl programming with strong OOPs knowledge.
- UI: HTML, JS
- System: Linux must have – good knowledge and shell scripting experience.
- Prior experience in infrastructure automation, monitoring will definitely help.
Description:
The person in this role:
- Will be involved in developing new monitoring scripts, enhancement & defect fixes on existing monitors
- Have to be on-call to support any incoming production/P1 internal issues which need urgent attention (team members are on call for a week and we have a weekly rotation policy within the team)
Preferred skills:
Perl
- Shell scripting
- Unix
- Jenkins
Must haves
- At least 3 years of professional programming experience in Ruby on Rails.
- Solid fundamentals with software development, systems, troubleshooting, and teamwork
- Strong testing habits, passionate towards unit testing and TDD.
- Good understanding of RDBMS like MySQL, PostgreSQL
- Strong knowledge of git
- Good understanding of data structures
- Strong analytical and problem-solving skills
Good to have
- Experience with Javascript
C# Developer @ Pune
Primary Skills : C#.Net, Microservices or JavaScript Framework
Requiements:
Required Knowledge/Skills, Education, and Experience
· Bachelor’s degree in Computer Science
· 3+ years professional experience in software development building production software systems
· Solid Computer Science fundamentals in object-oriented design, data structures, algorithms, and problem solving
· Proficiency in a modern programming language, preferably in C#
· Knowledge of Web based technologies or JavaScript frameworks
· Ability to work well with a team in a fast paced, dynamic, agile development environment
· Excellent written and verbal communication skills
Preferred Knowledge/Skills, Education, and Experience
· Knowledge of professional software engineering best practices
· Knowledge of Cloud Platforms (AWS, Azure, Google)
· Strong time management skills and the ability to be self-directed
· Experience with service-oriented architecture and web application/services development
· Experience with Object Oriented modern JavaScript Frameworks (Angular JS, Ember JS, Dojo, etc.)
· Experience with UI/UX design for complex workflows and/or for technical end users / domain experts
· Experience building complex, scalable, high-performance software systems that have been successfully delivered to customers
· Active on Github or StackOverflow
· Comfortable with the Linux command line and Git
· Sharp analytical abilities and proven design skills
· Experience with distributed computing and enterprise-wide systems
· Experience in communicating with users, other technical teams, and senior management to collect requirements, describe software product features, technical designs, and product strategy
· Experience leading and mentoring junior software engineers, and make them more effective, product software engineers
· Understanding of microservice development and best practices
Job Description:
Responsibilities
The person in this role will be developing software in the Innovation and Research team. The software development activity could be prototype code, researching an emerging technology, developing applications and microservices, testing harnesses, DevOps pipeline steps, and cloud development technology. The person in this role will be on an Agile Scrum team, and will participate a daily scrum meeting, updating story tasks, and providing daily updates to the team.
Additional responsibilities include:
· Documenting design, testing, or story details for a proposed implementation of a software feature or service
· Reporting out research findings to the broader team or organization
· Implementing software ideas
· Writing stories for software implementations
· Writing test code for validating software implementations
· Developing DevOps pipeline steps and/or DevOps tooling
· Agile Scrum activities (daily scrum, updating stories and tasks, sprint reviews)
· Research into a new software technology









