
- Identify bad code practices in Ruby and write new analyzers to detect them.
- Improve the coverage of automatically fixable issues.
- Ensure fewer false-positives are reported by the analyzer.
- Work on the internal tools that support analysis runtimes.
- Contribute to open-source static analysis tools.
We’re looking for someone who has:
- Strong foundational knowledge in Computer Science.
- At least 3 years of professional software development experience in Ruby.
- Understanding of the nuances of execution of the source code (AST, data flow graphs, etc).
- Familiarity with Ruby best practices followed in the industry.
- Native experience with Linux/Unix environment.
- A focus on delivering high-quality code through strong testing practices.

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Job Description
- Strong understanding of the Ruby programming language and Rails framework
- Proficiency in Javascript including experience with React, Angular or Vue.
- Database understanding (Postgres / MySQL).
- Previous experience maintaining production applications.
- Focus on writing clear, maintainable, tested code.
Skills Required
- Navigating and understanding a large codebase.
- Experience with Git, continuous integration and regular deployments. Understanding and appreciation of UX and usability.
- Excellent communication skills and diligent ability to contribute to the team by performing code reviews.
- Writing tests using Rsp,c and Capybara.
About the company:
💰 Early-stage, funded, growing, growing fast, profitable!
🎯 Mission Driven: To help small & large Indian businesses grow faster
Min. Experience: 3+ years in Full Stack Development
Skillset:
- You primarily identify as a full-stack engineer and are comfortable working on the server-side as well as UI side.
- You have shipped code to production recently and regularly
- You are driven and care about doing a good job and improving your craft.
- You have high integrity, and you are reliable
- You have excellent coding, programming, and problem-solving skills.
- You have experience with implementing modern architectural patterns.
- You have good debugging skills and coding practices
- You are fluent in using the tools of the trade: Editors, Git, Command line, Slack, Jira
- You should have relevant experience in the Ruby on Rails stack.
- You have experience with multiple ORMs
- You have experience in Postgres / MySQL
- You have experience in ReactJS
What you can expect from us:
- Mentorship, growth, great work culture
- We are a people-first team. Mentorship and continuous improvement are a part of the team’s DNA
- We believe in solving problems from first principles
- A good balance between deep focussed work and collaborative work, we won't bother you with unnecessary meetings
What we ask from you:
- Bring your software engineering — both individual brilliance and collaborative skills.
- Bring your good nature — we're building a team that supports each other.
- Be vested or interested in the company vision
- Take ownership of your product
- Should be capable of handling one complete product end-to-end - with minimal oversight
Bonus:
- If you have DevOps expertise: Docker, Kubernetes, AWS
- If you have amazing frontend skills
- If you have created or contributed to an open-source component or library, we will love to see the code
- If you have given a talk or spoken in a meetup/conference
- If you have a hobby project, we will love to hear about it
- If you have previously worked in startups
Role- Software Development Engineer-2
As a Software Development Engineer at Amazon, you have industry-leading technical abilities and demonstrate breadth and depth of knowledge. You build software to deliver business impact, making smart technology choices. You work in a team and drive things forward.
Top Skills
- You write high quality, maintainable, and robust code, often in Java or C++ or C#
- You recognize and adopt best practices in software engineering: design, testing, version control, documentation, build, deployment, and operations.
- You have experience building scalable software systems that are high-performance, highly-available, highly transactional, low latency and massively distributed.
- Roles & Responsibilities
- You solve problems at their root, stepping back to understand the broader context.
- You develop pragmatic solutions and build flexible systems that balance engineering complexity and timely delivery, creating business impact.
- You understand a broad range of data structures and algorithms and apply them to deliver high-performing applications.
- You recognize and use design patterns to solve business problems.
- You understand how operating systems work, perform and scale.
- You continually align your work with Amazon’s business objectives and seek to deliver business value.
- You collaborate to ensure that decisions are based on the merit of the proposal, not the proposer.
- You proactively support knowledge-sharing and build good working relationships within the team and with others in Amazon.
- You communicate clearly with your team and with other groups and listen effectively.
Skills & Experience
- Bachelors or Masters in Computer Science or relevant technical field.
- Experience in software development and full product life-cycle.
- Excellent programming skills in any object-oriented programming languages - preferably Java, C/C++/C#, Perl, Python, or Ruby.
- Strong knowledge of data structures, algorithms, and designing for performance, scalability, and availability.
- Proficiency in SQL and data modeling.
About Amazon.com
“Many of the problems we face have no textbook solution, and so we-happily-invent new ones.” – Jeff Bezos
Amazon.com – a place where builders can build. We hire the world's brightest minds and offer them an environment in which they can invent and innovate to improve the experience for our customers. A Fortune 100 company based in Seattle, Washington, Amazon is the global leader in e-commerce. Amazon offers everything from books and electronics to apparel and diamond jewelry. We operate sites in Australia, Brazil, Canada, China, France, Germany, India, Italy, Japan, Mexico, Netherlands, Spain, United Kingdom and United States, and maintain dozens of fulfillment centers around the world which encompass more than 26 million square feet.
Technological innovation drives the growth of Amazon, offering our customers more selection, convenient shopping, and low prices. Amazon Web Services provides developers and small to large businesses access to the horizontally scalable state of the art cloud infrastructure like S3, EC2, AMI, CloudFront and SimpleDB, that powers Amazon.com. Developers can build any type of business on Amazon Web Services and scale their application with growing business needs.
We want you to help share and shape our mission to be Earth's most customer-centric company. Amazon's evolution from Web site to e-commerce partner to development platform is driven by the spirit of invention that is part of our DNA. We do this every day by inventing elegant and simple solutions to complex technical and business problems. We're making history and the good news is that we've only just begun.
About Amazon India
Amazon teams in India work on complex business challenges to innovate and create efficient solutions that enable various Amazon businesses, including Amazon websites across the world as well as support Payments, Transportation, and Digital products and services like the Kindle family of tablets, e-readers and the store. We are proud to have some of the finest talent and strong leaders with proven experience working to make Amazon the Earth’s most customer-centric company.
We made our foray into the Indian market with the launch of Junglee.com, enabling retailers in India to advertise their products to millions of Indian shoppers and drive targeted traffic to their stores. In June 2013, we launched http://www.amazon.in">www.amazon.in for shoppers in India. With http://www.amazon.in">www.amazon.in, we endeavor to give customers more of what they want – low prices, vast selection, fast and reliable delivery, and a trusted and convenient online shopping experience. In just over a year of launching our India operations, we have expanded our offering to over 18 million products across 36 departments and 100s of categories! Our philosophy of working backwards from the customers is what drives our growth and success.
We will continue to strive to become a trusted and meaningful sales and logistics channel for retailers of all sizes across India and a fast, reliable and convenient online shopping destination for consumers. For us, it is always “Day 1” and we are committed to aggressively invest over the long-term and relentlessly focus on raising the bar for customer experience in India.
Amazon India offers opportunities where you can dive right in, work with smart people on challenging problems and make an impact that contributes to the lives of millions. Join us so you can - Work Hard, Have Fun and Make History.
Type: Individual contributor with good hands on proficiency.
Must have
- Strong proficiency in at least one of Java, Ruby, Python
- Exposure to databases: any of PostgreSQL, MySQL, Apache Cassandra
- Any NoSQL database experience is a plus
- Exposure to AWS cloud infrastructure: EC2 or S3
- Proficiency with Git
- MUST: Using REST to make API calls.
Great to have:
- Experience working with one or more middleware, enterprise bus, queueing frameworks
- Any of Memcached/Redis, Apache Kafka / RabbitMQ / PubSub+ / AmazonMQ
Soft skills:
- Appreciation for clean and well documented code
What will you do at Tradyl:
(Examples for illustration only)
- Build a shipping service module that is called by our website to query shipping rates from India to a destination country. Configure this to so that an Ops person can update shipping costs as and when they change. Own deployment and monitoring of this service.
- Use Zapier to build a workflow to export a MixPanel report into a Google sheet every day.
- Change our supplier portal (built on bubble.io) to make an API call to our customer facing site, whenever a supplier modifies his profile.
- Write an alert mechanism that identifies catalogues with insufficient information and makes them non discoverable, which can run every day.
- Work with Business Team to design a workflow for product inwarding using Airtable. Write a small app within Airtable so that whenever a product is updated as “shipped” in airtable, it updates the customer facing website.
- Use an open source dashboarding framework to create a quick dashboard to track important business events.
As an experienced engineer we know that you have built software to solve various business problems at your previous workplaces. You may have also explored technologies on your own for your learning or hobby projects.
- You will be building APIs for the Synup platform and also UI to make our platform capabilities available to our customers.
- You and the team that you are a part of will be collectively responsible building performant software and customer experiences that scale to our next million customers.
- You will be responsible for writing technical specs and contributing to it's implementation. We expect that you would have done the same in your previous workplaces.
- Other folks on our team are looking forward to learn from your experiences.
For engineers that join our team
- We expect you to be good with Ruby or Python to build APIs.
- You will be contributing to our UI that is built with React and GraphQL.
- We hope our team members have a strong grasp of software design patterns and know when to put them to good use.
- Experience with an SQL datastore would help a lot. PostgreSQL is our primary datastore.
- We optimize our search functionality and rollup reports by using ElasticSearch
- We expect that you have used Redis. Redis is our swiss army knife to solve a lot of problems apart from just caching.
Senior Ruby On Rails Developer
(Senior Product Engineer - ROR)
Experience - 3 to 6 years
Location - Pune
We are looking for an enthusiastic developer with a strong understanding of core Ruby and Rails framework along with PostgreSQL database. Someone who is passionate about coding and loves to work in an ongoing challenging environment. You will be part of a talented software team. You have to consistently deliver in a fast paced environment and should be more than willing to build software that people love to use.
Key Responsibilities
The individual role that you’ll play in our team:
- Developing large multi-tenant applications in Rails.
- Understanding Rails best practices and religiously introducing those to our codebase.
- Knowledge on how to do effective Refactoring.
- Ability to write unit tests and following those practices religiously.
- Working closely with the Product managers and UX team.
- Helping QAs to write automated integration tests.
- Staying up-to-date with current and future Backend technologies and architectures.
Read the ‘Skills and Experience’ section, it is not the usual yada yada, you’ll be asked specific questions on these.
Skills and Experience
- Ruby on Rails architecture best practices
- Knowledge on the latest versions on ROR
- Strong OOP knowledge in Ruby.
- Asynchronous Networking in Ruby
- Designing RESTFul HTTP APIs using JSON-Schema or JSON API (http://jsonapi.org/">jsonapi.org).
- Ability to architect and develop API only backend
- Experience in using ActiveRecordSerializer
- Understanding O-Auth2 or JWT (Json Web Token) authentication mechanisms.
- How to use RSpec
- Rails Security Best Practices
- PostgreSQL and Rails.
- SQL concepts like Joins, Relationships etc.
- Understanding DB Partition strategies.
- Knowledge about refactoring ActiveRecord Models (read this - “7 Patterns to Refactor Fat ActiveRecord Models”).
- Understanding scaling strategies for a high-traffic Rails applications (2 million+ requests a day).
- Background Job processing using Redis and Sidekiq
- Experience in using Amazon Web Services (AWS) tools.
- Writing automated Deployment Scripts using Capistrano, Ansible etc.
- Sending emails in Rails
- Knowledge in Linux and Git is mandatory
Optional Skills
- Knowledge in using Chef or Puppet
- Ability to do basic DevOps like setting up a Linux server.
- Websocket communication in Rails 5.
- Node.js
- JRuby
Scalefusion (formerly known as Mobilock Pro): (Our Flagship Product)
Scalefusion MDM allows organizations to secure & manage endpoints including smartphones, tablets, laptops, rugged devices, mPOS, and digital signages, along with apps and content. It supports the management of Android, iOS, macOS and Windows 10 devices and ensures streamlined device management operations with InterOps. Fusion of Endpoints at Scale.
Promobi Technologies:
ProMobi Technologies provides a leading Mobile Device Management Solution under the brand Scalefusion. The solution allows organizations to manage Android and iOS devices from the cloud. It offers modern mobile device management (MDM), application management (MAM) and content management (MCM) experience for corporate-owned devices. Renowned organizations from startups to Fortune 500 trust Scalefusion for their Device Management.










