Software Engineer JAVA

StarApps Studio is a product-driven SaaS company building Shopify apps that power thousands of online stores. We’ve developed 6 highly-rated Shopify apps (averaging 4.9★) used by 30,000+ Shopify merchants worldwide, including over 1,000 Shopify Plus stores. In just a few years, our bootstrapped team grew from $5.5M to $10M in Annual Recurring Revenue (ARR) by obsessing over quality and merchant success. We’re a tight-knit, 20-person team based in Baner, Pune, on a mission to help e-commerce brands create world-class shopping experiences.

Role Overview

We are looking for a Full Stack Developer who will own features end-to-end with an emphasis on backend excellence. In this role, you will design and optimize complex data models and API architectures in Ruby on Rails, implement robust background job queues (e.g. delayed_job) for heavy workloads, and perform rigorous performance tuning to ensure our systems scale. On the frontend, you'll build and integrate React components to deliver complete, user-friendly features. This is a role for someone who loves tackling deep technical challenges in the backend while also crafting intuitive user interfaces – an opportunity to leverage your backend expertise while driving full-stack product ownership.

Key Responsibilities

• Architect & Optimize Backend: Design scalable database schemas and efficient data models. Develop high-performance RESTful APIs and services in Ruby on Rails, ensuring clean, maintainable code and great performance.
• Backend API Development: Design, implement, and maintain robust backend services and RESTful APIs in Ruby on Rails to support new features and internal tools.
• End-to-End Performance Tuning: Optimize application performance across the stack – from minimizing frontend load times to improving backend query efficiency – for our high-traffic, data-intensive apps.
• Collaboration & Agile Delivery: Work closely with designers, product managers, and QA to translate requirements into technical solutions. Participate in sprint planning, code reviews, and daily deployments to ship features continuously and reliably.
• Quality & Maintenance: Write clean, maintainable code with appropriate test coverage (unit and integration tests) to ensure reliability. Monitor, debug, and resolve issues in production, and continually refactor and improve existing code for stability and performance

What We’re Looking For (Requirements)

• 4–8 Years Experience: Proven experience as a software developer in a product company (experience in e-commerce or SaaS is highly preferred). You have built real products used by actual customers at scale.
• Ruby on Rails Expertise: Strong command of Ruby on Rails. Experience designing RESTful APIs, working with MVC architecture, and using Rails best practices. You should understand how to structure large Rails applications for maintainability.
• Backend Proficiency: Comfortable building server-side applications and APIs with Ruby on Rails. You can implement business logic, integrate with databases, and create RESTful endpoints (bonus if you’ve worked with GraphQL or other backend frameworks).
• Database Skills: Proficiency with PostgreSQL (or similar RDBMS). Capable of writing complex SQL queries, optimizing queries/indexes, and designing efficient relational schemas. Familiarity with Redis or caching strategies is a plus.
• Front-End Proficiency: Comfortable building user interfaces with React and modern JavaScript/TypeScript. Able to implement frontend components that consume APIs and provide a smooth user experience.
• System Design & Quality: Solid understanding of web application architecture, performance tuning, and scalability concerns. Experience with profiling, benchmarking, and optimizing web applications. Commitment to writing clean, maintainable code with proper tests.
• Product Mindset: You care about the why behind the features. You are comfortable digging into requirements, questioning assumptions, and ensuring that we build solutions that truly solve merchant problems.
• Adaptability & Collaboration: Excellent problem-solving skills, communication, and ability to work in a fast-paced, collaborative environment. You are a self-starter who can take ownership of tasks and drive them to completion, but also know when to ask for help.

Tech Stack

• Frontend: React, TypeScript/JavaScript, HTML5, CSS3 (Tailwind/Bootstrap), modern build tools (Webpack, Babel).
• Backend: Ruby on Rails (REST APIs, background jobs), some services in Python.
• Database: PostgreSQL.
• Cloud & DevOps: Amazon Web Services (EC2, S3, RDS, CloudFront), Docker, CI/CD for daily deployments.
• Tools: Git (GitHub), Agile issue tracking (JIRA/Trello), and a keen use of automated testing.

(Don’t worry if you aren’t familiar with every item – we value willingness to learn. This is our current stack, and we continually adopt new technologies that improve our products.)

Why Join Us

• High Impact & Ownership: Your work will directly enhance the shopping experience of 50M+ shoppers daily. At StarApps, developers deploy code daily and see the immediate impact on thousands of merchants – you’ll own projects end-to-end and build features that matter.
• Fast-Growing, Profitable Startup: Join a bootstrapped, profitable company on an exciting growth trajectory (from $4M to $10M ARR). There’s no bureaucracy here – just a passionate team obsessed with product quality and merchant happiness. You’ll be part of our core team as we scale, with ample opportunities to grow into leadership roles.
• Cutting-Edge Tech & Challenges: Work with modern technologies (React, Rails, AWS) on performance-intensive applications. Tackle complex challenges in scaling, optimization, and UX for a global user base – continuously sharpen your skills in a supportive, learning-focused environment.
• Collaborative Culture: We are a small 25-person team that operates like a close-knit family. You’ll work side by side with experienced founders and a talented team that values innovation, humility, and continuous improvement. Our culture is open, empathetic, and growth-oriented – every voice is heard, and every team member plays a crucial role in our success.

Growth & Benefits: We invest in our team’s growth. Expect a competitive salary, performance bonuses, and whatever tools you need to do your best work. We sponsor professional development (courses, conferences, books) and encourage knowledge-sharing. You’ll enjoy a flexible leave policy, team off-sites, and the excitement of building a global product from our new office in Baner, Pune.

• C#, .NET, ASP.NET, Web API, MVC, Entity Framework
• JavaScript, Angular (React, Vue.js, Knockout.js also considered)
• SQL Server, relational databases (NoSQL is a plus)
• Microsoft Azure, AWS
• Docker, CI/CD pipelines
• SaaS and cloud-native architecture

Responsibilities

• Design and develop full stack web applications using .NET and Angular
• Build scalable APIs and backend services with C# and ASP.NET
• Develop responsive front-end components using JavaScript frameworks
• Optimise application performance, scalability, and security
• Work with SQL Server and data access layers
• Collaborate with product managers, designers, and engineers in an Agile environment
• Participate in code reviews and follow engineering best practices

Senior / Project Lead Responsibilities (If Applicable)

• Technical ownership across the software development lifecycle
• Architecture and technical design decisions
• Mentoring junior engineers
• Estimation, planning, and technical problem-solving

Requirements

• 3–5+ years of experience as a Software Engineer / Full Stack Developer
• Strong commercial experience with C#, .NET, and JavaScript
• Experience with Angular or similar front-end frameworks
• Cloud experience with Azure and/or AWS
• Knowledge of Docker, CI/CD, and DevOps practices
• Experience building scalable, production-grade web applications
• SaaS experience is highly desirable

Nice to Have (Boosts Search Reach)

• Node.js
• Microservices architecture
• NoSQL databases
• Automated testing frameworks (Jest, Mocha)

Technical  Lead Recruitment Solutions

We are looking for a passionate Team Lead with 8+ years of experience to tackle some of the most meaningful problems in the recruitment space. You'll be at the forefront of building AI agents to transform recruitment workflows, designing next-generation candidate experiences, and revolutionizing how enterprises manage their hiring processes.

As Team Lead, you'll guide development efforts toward successful project delivery while providing technical coaching and mentorship to your team. Your leadership will be crucial in maintaining high standards of software quality and identifying areas for growth and improvement within your team.

Your code will have millions of eyeballs from 200 countries right from Azerbaijan to Australia and closer to home, you will help hire from Jhumritalaiya to Jammu.

Key Responsibilities

* Guide team development efforts towards successful project delivery

* Provide technical leadership to teammates through coaching and mentorship

* Maintain high standards of software quality within the team by establishing good practices and habits

* Identify and encourage areas for growth and improvement within the team

* Collaborate with other software developers, business analysts, and software architects to plan, design, develop, test, and maintain web and desktop-based business applications

* Assist in the collection and documentation of user requirements, development of user stories, estimates, and work plans

* Design and implement scalable architecture to support data-intensive applications

* Oversee the deployment of applications to cloud providers like AWS or GCP

Requirements

* 8+ years of experience developing software on a Java/J2EE and relational database stack

* Proven experience in leading technical teams and mentoring junior developers

* Strong expertise in designing scalable architecture to support data-intensive applications

* Mastery of technologies including Spring, Hibernate, SQL, and REST to design microservices-based architecture

* Experience in setting up and deploying applications to cloud providers like AWS or GCP

* Ability to harness AI as an engineering assistant to improve productivity and code quality

Good to have

* Experience with frontend development - JavaScript frameworks like Backbone/Angular

* Data science experience - fetching data from multiple sources, modeling, and extracting information with familiarity in tooling, processing, and deployment (MongoDB, Hadoop, Mahout, Neo4j, etc.)

* Information security experience - OWASP Security principles and implementation

Our Tech Stack

Java, Spring, Hibernate, MySQL - RDS, MongoDB, Apache Solr, Spring Cloud, S3 - Angular 2, Backbone JS, Azure OpenAI. Our applications are hosted on AWS and GCP.

What We Value

* Great attitude to ask questions, learn, and suggest process improvements

* Meticulous attention to detail and ability to identify edge cases

* Equal importance to planning, coding, code reviews, documentation, and testing

* High motivation with fresh ideas and perspectives to help us move toward our goals faster

* Strong team player who enjoys mentoring juniors and getting mentored by seniors

* Commitment to release cycles and deadlines

* Open-minded approach to considering AI as a helpful engineering assistant that can enhance team capabilities

Join us in building the future of recruitment technology! Apply today to make a significant impact in how companies worldwide hire talent.

• Must have 5 to 10 years of experience on building highly scalable web based enterprise applications using Java/J2EE, Javascript

• Must have experience on front end development using javascript, ReactJS

• Architect and co-create, a highly scalable, available, resilient & distributed applications and multi-tenant Platforms
• Highly hands on with coding/designing, troubleshooting, debugging, monitoring, leading and developing a large scale multi-tenant software components on the Platform in Agile based methodology to provide self-service capabilities (MUST HAVE)
• Must have knowledge of Data structures, must have ability to solve data structure programs on platforms like hakerrank, leetcode  (MUST HAVE)
• Proficiency in engineering practices and writing high quality code, with expertise in Java/J2EE.

• Exposure to NOSQL DB and Relational database

• Exposure to RabbitMQ ,Kafka and Redis Cache

• Working in a team environment, contribute significantly to application solution design and to the high-level design of application software.
• Detailed design, code and test of Cloud Platform software. Provide automated test software in conjunction with application software.

Wallero is hiring .Net Full stack Developers with 4+ years of experience in Hyderabad, Telangana, India.

This is a permanent, full-time position.

About Wallero: http://www.wallero.com/

Key Responsibilities:

- Proficiency in C#, Angular, SQL, Azure, and RestAPIs.

- Fluent in Azure & Microsoft .NET Stack for Web Applications & API Development.

- Experience building, maintaining, and integrating applications in various tech stacks including MVC, .Net, C#, SQL, and Angular.

Interested candidates can apply the job.

References are highly appreciated.

Responsibilities

• Developing new user-facing features using React.js
• Building reusable components and front-end libraries for future use
• Translating designs and wireframes into high quality code
• Optimizing components for maximum performance across a vast array of web-capable devices and browsers

Skills

• Strong proficiency in JavaScript, including DOM manipulation and the JavaScript object model
• Thorough understanding of React.js and its core principles
• Experience with popular React.js workflows (such as Flux or Redux)
• Knowledge of isomorphic React is a plus
• Familiarity with RESTful APIs
• Knowledge of modern authorization mechanisms, such as JSON Web Token
• Experience with common front-end development tools such as Babel, Webpack, NPM, etc.
• Ability to understand business requirements and translate them into technical requirements
• A knack for benchmarking and optimization
• Familiarity with code versioning tools such as Git, SVN, and Mercurial

• Experience in software / web application architecture, estimates, design and development experience
• Knowledge of formal methods and techniques in software development
• Experience / Knowledge in the following technologies/languages/libraries/frameworks:
  • Primary Experience in C#, NodeJS and React JS.
  • Add on experience in HTML5, CSS, jQuery, JSON, API, Angular JS, AWS / Azure.
  • Experience with Version Control Software (GIT)

Rawster is the digital interface for real life sports.
An early-stage startup that's set on blurring the line between Sports and E-sports.

Position

Full Stack Engineer (MERN stack)

Eligibility Criteria

• Minimum one year of working experience
• Must have skills : Experience in working with Full Stack Applications
• Exceptions can be made if proof of skill exists.

We are looking for a Full Stack JavaScript and NoSQL Developer who is motivated to combine the art of design with the art of programming. Responsibilities will include implementing visual elements and their behaviors with user interactions. You will work in both front-end and back-end web development to build all client-side logic. You will also be bridging the gap between the visual elements and the server-side infrastructure, taking an active role on both sides, and defining how the application looks and functions. Build reusable code and libraries for future use

Development stack

Reactjs

React Native (Typescript)

Node.js

Koa.js/Express.js

MongoDB with Mongoose

PostGreSQL with knex

Remuneration : Based on skill and expertise,

ranging from* 5 to 11 Lakhs Per Annum*

You can expect..

• to play a role in the revolutionisation of Sports.
• a passionate and fast moving work culture; We are a tight-knit team.
• to experience the Victories and Struggles of an early-stage startup.
• to learn and grow with the team.
• competitive salaries and benefits.

Responsibilities and Duties

• Ensure the technical feasibility of UI/UX designs
• Optimize applications for maximum speed and scalability
• Assure that all user input is validated before submitting to back-end services
• Manage server side javascript code.
• Ensure performance, security, and availability of database
• Handle common database procedures such as upgrade, backup, recovery, migration, etc.
• Profile server resource usage, and optimize and tweak as necessary
• Collaborate with other team members and stakeholders
• Adaptability, ability to learn faster, Independant, Responsible and diligent
• Good team spirit and interpersonal skills, excellent written, verbal, communication skills, analytical skills and business thinking.

Qualifications and Skills

• Strong understanding of JavaScript, its quirks, and workarounds
• Basic understanding of web markup, including HTML5 and CSS3
• Experience with advanced CSS programming using LESS or SASS.
• Strong understanding and experience in libraries React.js and React Native
• Strong understanding and experience in Node.js and other server side technologies.
• Good understanding of asynchronous request handling, partial page updates, and AJAX
• Proficient understanding of cross-browser compatibility issues and ways to work around such issues
• Familiarity with front-end build tools, such as Grunt and Gulp.js
• Strong proficiency with NoSQL e.g MongoDB. Knowledge of SQL DBMS is a bonus.
• Ability to plan resource requirements from high level specifications
• Capable of troubleshooting common database issues
• Familiar with tools that can aid with profiling server resource usage and optimizing it
• Proficient understanding of code versioning tools, such as Git

Job Type: Full-time

Salary: ₹500,000.00 to ₹1,100,000.00 /year