QA Engineer

Who are we :

Trendlyne is a funded, profitable products startup in the financial markets space. We have cutting-edge analytics products built for Indian and US customers, for stock markets and mutual funds.

Our founders are IIT + IIM graduates, with strong tech and marketing experience. We have top finance and management experts on the Board of Directors.

What do we do :

We build powerful analytics in the US and Indian stock market space that are best in class. Organic growth in B2B and B2C products have already made the company profitable. We deliver 1 billion+ APIs every month to B2B customers, and have a B2C website and app.

Tech Stack :

• Python (Django / Flask / FastAPI )
• PostgreSQL / MySQL
• Redis / caching systems
• REST APIs

Job Responsibilities :

• Develop and maintain scalable, robust backend systems using Python frameworks.
• Work closely with product managers and other cross-functional teams to help define, scope, and deliver world-class products and high-quality features addressing key user needs.
• Translate requirements into system architecture and implement code while considering performance issues of dealing with billions of rows of data and serving millions of API requests every hour.
• Ability to take full ownership of the software development lifecycle from requirement to release.
• Writing and maintaining clear technical documentation enabling other engineers to step in and deliver efficiently.
• Embrace design and code reviews to deliver quality code.
• Play a key role in taking Trendlyne to the next level as a world-class engineering team
• Develop and iterate on best practices for the development team, ensuring adherence through code reviews.
• As part of the core team, you will be working on cutting-edge technologies like AI products, online backtesting, data visualization, and machine learning.
• Proficient understanding of the performance of web and mobile applications.

Job Requirements :

• 1+ years of experience with Python and Django / Flask / FastAPI.
• Good knowledge of APIs, databases, and system performance.
• Strong understanding of relational databases like PostgreSQL or MySQL and Redis.
• Ownership mindset: you build, ship, and improve.
• (Optional): Experience with web front-end technologies such as JavaScript, HTML, and CSS

Role Overview

We are looking for a Lead Mobile Developer to set the technical bar for our mobile engineering.

This is an individual contributor role: you lead through deep technical ownership and influence,

not people management. With 4-5+ years building and shipping production apps, you know

mobile inside out, from the widget tree to the platform internals, and you make the calls that

keep our apps fast, stable, and maintainable as they scale.

Key Responsibilities

• Technical Leadership: Own the technical direction of our mobile apps; make and document architecture decisions, and set the standards others build against.

• End-to-End Development: Lead the development of complex, high-quality applications for iOS and Android from a single Flutter codebase.

• Architecture & State Management: Design and implement scalable app architectures using industry-standard state management solutions (e.g. Bloc/Cubit, Riverpod, or Provider).

• Custom UI/UX: Translate Figma/Adobe XD designs into pixel-perfect, fluid, responsive UIs using Flutter's widget tree, including custom animations and complex layouts.

• Deep Mobile Expertise: Apply end-to-end knowledge of mobile functionality: lifecycle, navigation, push notifications, deep linking, permissions, background tasks, offline behavior, and app security.

• API & Integrations: Integrate RESTful APIs and third-party SDKs with robust data persistence and offline capabilities.

• Native Interoperability: Write platform-specific code via Method Channels to access native features when needed.

• Performance Optimization: Profile and optimize app performance, reducing jank, optimizing build methods, and managing memory.

• Release Management: Own the release process end to end, including builds and deployment to the App Store and Google Play.

• Mentorship: Raise the team's bar through code reviews, technical guidance, and sharing best practices, without formal people management.

Technical Requirements

• Experience: 4+ years of hands-on experience building and shipping production mobile apps.

• Flutter: Strong, demonstrable Flutter and Dart expertise across real-world, production-grade apps.

• Full-Stack Mobile Knowledge: End-to-end command of mobile functionality and the in-and-out behaviors of the platform, not just the happy path.

• State Management: Expert-level understanding of at least one major state management library (Bloc or Riverpod preferred).

• Software Design: Strong grasp of SOLID principles, Clean Architecture, and Design Patterns.

• Testing: Proficiency in writing unit, widget, and integration tests to ensure app stability.

• Native Knowledge: Familiarity with native mobile development (Swift/Kotlin) is a significant plus.

• Tools: Proficient with Git, Firebase (Auth, Firestore, Cloud Messaging), and local databases like Hive or SQLite.

Soft Skills

• Problem Solver: You don't just find bugs; you identify the root cause and implement long-term fixes.

• Decision Maker: You weigh trade-offs and make sound technical calls, then bring the team along with clear reasoning.

• Collaborator: Ability to work closely with Product Managers and Designers in an Agile environment.

• Lifelong Learner: You stay up to date with the latest Flutter releases and the evolving Dart ecosystem.

Key responsibilities:

● Work closely with the design and product teams to help craft conversational experiences for our users

● Ability to work independently to deliver features that the team design

● You need to own outcomes without someone watching over you

● Understand the data we have and identify how we could leverage it to create more personalised experiences for our users.

● Fine tune models with data specific to our use case

● Use different RAG approaches to augment data that the LLM already has

● Ability to be a leader and independent contributor (we’re a startup so be ready to do whatever it takes)

● Setup new workflow, systems and tool from the ground up (you will have support, but we’re building things from scratch)

Requirements:

● 3+ years of experience

● Experience working with LLMs and Generative AI

● Experience building conversational bots

● Experience fine tuning models

● Experience using RAG base approaches

● Understanding of financial concepts and investing would be a big plus but not required

About the Position

We are looking for a passionate and experienced software engineer to join our team at Mumbai. In this role, your primary responsibilities will be to take ownership of developing user facing applications and features in an agile manner. You will design and implement scalable and performant front-end solutions from scratch, while also taking a hard look at the existing ones.

What you will do at QI?

• Design, develop and deliver new user-facing apps and feature and improve existing ones
• Take ownership of product(s), and contribute to dev cycles and sprints planning
• Ensure technical feasibility of UI/UX design, share inputs with other teams including product, design and QA
• Optimize applications for performance, user experience and SEO
• Build reusable code and libraries. Contribute to open source projects.
• Stay up-to-date with new technologies with an eye of constantly adapting and improving our systems and methods.

Basic Job requirements

• 2 years + work experience in a similar role
• Strong experience in HTML5, CSS, DOM and front-end tooling ecosystem (Gulp,Grunt, Webpack)
• Excellent concepts and command over JavaScript
• Strong concepts and commercial experience in Vue.js
• Solid foundation in software development ( algorithm design, data structure, SDLC)
• Good concepts of unit testing and automation testing for UI components
• Good understanding of web app performance including Google Core Web Vitals metrics.

Location - Remote 

Good to have

• Basic knowledge of REST API and relational databases
• Basic understanding of browser internals
• Familiarity with web components and shadow DOM
• Exposure to progressive web app design.

About QuantInsti®

QuantInsti® was started in 2010, by the founders from iRage – a leading quant and algo trading firm in India.  From its early days focused on bridging the industry knowledge gap in the field of high-frequency trading, we have come a long way in the last decade. Today, we have a user base from 180+ countries with a growth rate much over 50% year-on-year.

At QuantInsti®, we swear by our goal of revolutionizing the way people approach the financial markets by empowering individuals and institutions with bleeding edge education and technologies. We offer high quality https://www.quantinsti.com/epat">learning experience and best-in-class https://quantra.quantinsti.com/">courses geared towards a global audience in quantitative trading and investing. Our in-house developed technology aims to bring institutional grade tools and https://quantra-blueshift.quantinsti.com/">platforms to democratize systematic and quantitative trading.

We achieve this by putting technology at the core of our business. We have a complex ecosystem of microservices and applications deployed over a fully cloud-based infrastructure. Our tech stack includes Node.js, Vue.js, Python and Docker. The team is driven by user experience, with strong focus on delivering scalable software solutions to complex and evolving business goals.

Why you should join us?

At QuantInsti, we work at the cutting edge of FinTech and EdTech offerings. We work with the newest technologies with a goal of delivering best experience to our users in a scalable manner, with high-performance and availability. If you love to be challenged intellectually, rest assured we have plenty of them for you. We follow an open and free work culture, where you are encouraged to ask questions, learn and teach. We offer a fast-paced environment where you take ownership of what you design and deliver. If you are looking for a move where you will find a reason to wake up every morning and rush to work, come join us.

Experience: 4 to 5 Years

Location: Bangalore, Pune, Gurgaon, Chennai, Bhopal, Jaipur

Work Mode: Hybrid (2-3 Days Work from Office)

Notice Period: Immediate joiners preferred

Note:Valid Passport is Mandatory

About the Role

We are looking for a highly skilled iOS Developer with 4-5 years of experience in developing and maintaining native iOS applications. The ideal candidate must be proficient in Swift and Objective-C, with a strong understanding of the iOS ecosystem, Apple's design principles, and performance optimization.

Key Responsibilities

• Develop and maintain advanced applications for the iOS platform.
• Collaborate with cross-functional teams to define, design, and deliver new features.
• Continuously discover, evaluate, and implement new technologies to maximize development efficiency.
• Work on application lifecycle management, from concept through delivery and post-launch support.
• Integrate RESTful APIs and third-party libraries/services.
• Participate in code reviews, design discussions, and mentor junior team members when needed.

Required Skills

• Strong programming skills in Swift and Objective-C.
• In-depth knowledge of iOS frameworks such as UIKit, CoreData, CoreAnimation, etc.
• Experience with Xcode and Interface Builder.
• Solid understanding of MVVM/MVC design patterns.
• Experience in Auto Layout, Storyboard, and building UI with code.
• Good knowledge of memory management, multithreading, and performance tuning.
• Understanding of App Store submission process and Apple Human Interface Guidelines.
• Ability to write clean, well-documented, and maintainable code.

Mandatory Requirement

• Valid Passport is mandatory. Candidates must possess a valid passport at the time of application.

Why Join Us?

Join a fast-paced, innovation-driven environment where your ideas are valued and your contributions make a tangible impact. You'll collaborate with a passionate team working on global products, backed by a culture of learning, growth, and flexibility.

About Us:

At Sublime Data Systems, we are dedicated to creating scalable, enterprise-level software solutions that drive innovation and growth. We are seeking an experienced Fullstack Engineer to join our dynamic team. As a core member of our cross-functional unit, you will play a pivotal role in the entire development life cycle, from conception to deployment. Your leadership will be essential in mentoring and guiding our team towards excellence. If you are passionate about coding, thrive in an entrepreneurial environment, and possess expertise in front-end and back-end technologies, we would love to meet you.

Key Responsibilities:

• Architect and develop robust, scalable, and efficient web applications using Node.js and React.js.
• Lead a team of developers in the design, development, testing, and deployment of high-performance web applications.
• Collaborate with cross-functional teams to define, design, and ship new features.
• Ensure the technical feasibility of UI/UX designs and optimize applications for maximum speed and scalability.
• Stay up-to-date with emerging technologies and industry trends to drive innovation and excellence in our products.
• Conduct code reviews to ensure code quality and adherence to best practices.
• Mentor and coach team members to foster a culture of continuous learning and growth.
• Troubleshoot and resolve complex technical issues, ensuring seamless application performance.

Qualifications:

• Bachelor's degree in Computer Science, Engineering, or a related field.
• Minimum of 5 years of experience in full-stack web development.
• Proficiency in Node.js, Express, Nest.js, React.js, and Next.js along with expertise in Typescript.
• Proven experience leading a team of engineers in a fast-paced, agile environment.
• Strong understanding of software development best practices, design patterns, and architectural principles.
• Extensive experience with front-end technologies such as HTML, CSS, and JavaScript.
• In-depth knowledge of RESTful APIs and experience with API integration.
• Expertise in utilizing modern development tools and deploying workflows, such as Git and CI/CD pipelines.
• Familiarity with message broker systems like RabbitMQ.
• Proficiency in databases such as Postgres or MySQL.
• Experience with ORM Frameworks like Sequelize or Typeform.
• Experience with microservices architecture.
• Experience with DevOps (AWS) practices
• Excellent problem-solving and debugging skills.
• Strong communication and leadership abilities.

Benefits:

• Positive work environment
• Encourage and sponsor learning and development programs
• Chance to work with advanced technology

Experience Required: 7+ years

Hiring Process: 1 Technical Rounds, 1 Managerial Round

Mode of work : Hybrid

Location: Bangalore

Responsibilities Include:

• Leading application design, development, and release process for all new and existing assigned projects.
• Working closely with development teams, management, and designers to build world-class software applications.
• Coordinating the collection, description, analysis, and prioritization of requests for new project functionality and existing applications.
• Documenting and reporting problems, recommending solutions or improvements to project managers.
• Translating design specifications into web or client applications that work well across multiple devices.
• Contributing to design and architecture to meet business requirements.
• Keeping up-to-date on the latest web tools, client-side technologies, standards, and practices.
• Working closely with the Quality Assurance team to ensure the delivery of high-quality software.
• Assisting other developers, and showcasing the ability and desire to estimate tasks, meet deadlines, and work effectively with minimal supervision in a team environment.

Candidate Qualifications:

• 7+ years of IT experience primarily using .Net Tech Stack.
• Strong experience in MVC, Web Services, Web API, C#, MSSQL, relational databases, and web development.
• Familiarity with JavaScript, Angular JS and jQuery.
• Experience with .Net Core (.Net 5.0/6.0) and Azure Cloud.
• Experience in responsive web design techniques.
• Hands-on experience in leading the development of .NET solutions.
• Expertise in OOPs, Design Patterns, and Best Practices.
• End-to-end .NET development experience, and proficiency in implementing enterprise applications based on .Net stacks.
• Proficiency in Agile/Scrum methodology.
• Experience in SaaS platforms is preferred.

Key Responsibilities:   

• Should have hands-on experience with Java   

• Strong experience in Spring Boot, Micro Services   

• Should be well versed with Agile Development methodologies   

• Should have strong debugging and communication skill   

• Should participate in design discussions and provide application designs, architecture, timeline estimations   

• Problem-solving mind and attitude   

• Ability to interface well with externally facing departments and directly with customers   

• Effective communication skills – written, spoken, listening, and presentation   

• Great Team player and experience working with global teams and global organizations Genuine interest in learning and knowledge sharing   

Primary Skills:   

• 2 years of Spring Boot and Microservices.   

• 3+ years of experience in Core Java.   

• Proficiency with Spring Framework.   

• Innovate new approaches algorithms, libraries, tools, platforms, for relevant development areas   

• Strong programming skills in Core JAVA / J2EE expert level   

• Good at data structures, algorithms, problem-solving, and design patterns   

• Knowledge of Web Services, Spring, ORM Frameworks, Spring Boot, Spring Cloud Gateway, OAuth2.0, Spring Security, JWT, Eureka, Hystrix, Apache Cassandra   

• Should be well familiar with SQL/NO-SQL database   

• Knowledge of Spring Batch, Kubernetes, Docker is a plus point    

• 5 +yrs of ITExperience
• A candidate with strong OOP skills as well as strong web front end skills(HTML, CSS, Javascript, jQuery etc.)and a lot of MySQL/MsSQL exposure and ideally stored procedureGood Experience in Core PHP and any PHP Frameworks (Laravel/Symphony/Zend).
• Experience in AngularJs & AWS is plus