Flutter Developer at SveltetechTechnologies Pvt Ltd · Delhi, Gurugram, Noida · 1 - 3 years · ₹3L - ₹6L / yr (ESOP available) · Profitable · Posted 20 May 2021
- Job Description:
- Design and build advanced applications for the Flutter platform
- Collaborate with cross-functional teams to define, design, and ship new features.
- Experience to create complex UI in Flutter Platform
- Experience in using various Flutter plugins / extensions / libraries
- Experience in connecting to REST API's
- Proficiency in Dart programming language
- Unit-test code for robustness, including edge cases, usability, and general reliability
- Work on bug fixing and improving application performance
- Continuously discover, evaluate, and implement new technologies to maximize development efficiency.
- Must have built at least one app with Flutter SDK
- Have working experience with Dart.
- Experience with third-party libraries and APIs.

About SveltetechTechnologies Pvt Ltd
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Required Skills: TypeScript, MVC, Cloud experience (Azure, AWS, etc.), mongodb, Express.js, Nest.js
Criteria:
Need candidates from Growing startups or Product based companies only
1. 4–8 years’ experience in backend engineering
2. Minimum 2+ years hands-on experience with:
- TypeScript
- Express.js / Nest.js
3. Strong experience with MongoDB (or MySQL / PostgreSQL / DynamoDB)
4. Strong understanding of system design & scalable architecture
5. Hands-on experience in:
- Event-driven architecture / Domain-driven design
- MVC / Microservices
6. Strong in automated testing (especially integration tests)
7. Experience with CI/CD pipelines (GitHub Actions or similar)
8. Experience managing production systems
9. Solid understanding of performance, reliability, observability
10. Cloud experience (AWS preferred; GCP/Azure acceptable)
11. Strong coding standards — Clean Code, code reviews, refactoring
Description
About the opportunity
We are looking for an exceptional Senior Software Engineer to join our Backend team. This is a unique opportunity to join a fast-growing company where you will get to solve real customer and business problems, shape the future of a product built for Bharat and build the engineering culture of the team. You will have immense responsibility and autonomy to push the boundaries of engineering to deliver scalable and resilient systems.
As a Senior Software Engineer, you will be responsible for shipping innovative features at breakneck speed, designing the architecture, mentoring other engineers on the team and pushing for a high bar of engineering standards like code quality, automated testing, performance, CI/CD, etc. If you are someone who loves solving problems for customers, technology, the craft of software engineering, and the thrill of building startups, we would like to talk to you.
What you will be doing
- Build and ship features in our Node.js (and now migrating to TypeScript) codebase that directly impact user experience and help move the top and bottom line of the business.
- Collaborate closely with our product, design and data team to build innovative features to deliver a world class product to our customers. At company, product managers don’t “tell” what to build. In fact, we all collaborate on how to solve a problem for our customers and the business. Engineering plays a big part in it.
- Design scalable platforms that empower our product and marketing teams to rapidly experiment.
- Own the quality of our products by writing automated tests, reviewing code, making systems observable and resilient to failures.
- Drive code quality and pay down architectural debt by continuous analysis of our codebases and systems, and continuous refactoring.
- Architect our systems for faster iterations, releasability, scalability and high availability using practices like Domain Driven Design, Event Driven Architecture, Cloud Native Architecture and Observability.
- Set the engineering culture with the rest of the team by defining how we should work as a team, set standards for quality, and improve the speed of engineering execution.
The role could be ideal for you if you
- Experience of 4-8 years of working in backend engineering with at least 2 years of production experience in TypeScript, Express.js (or another popular framework like Nest.js) and MongoDB (or any popular database like MySQL, PostgreSQL, DynamoDB, etc.).
- Well versed with one or more architectures and design patterns such as MVC, Domain Driven Design, CQRS, Event Driven Architecture, Cloud Native Architecture, etc.
- Experienced in writing automated tests (especially integration tests) and Continuous Integration. At company, engineers own quality and hence, writing automated tests is crucial to the role.
- Experience with managing production infrastructure using technologies like public cloud providers (AWS, GCP, Azure, etc.). Bonus: if you have experience in using Kubernetes.
- Experience in observability techniques like code instrumentation for metrics, tracing and logging.
- Care deeply about code quality, code reviews, software architecture (think about Object Oriented Programming, Clean Code, etc.), scalability and reliability. Bonus: if you have experience in this from your past roles.
- Understand the importance of shipping fast in a startup environment and constantly try to find ingenious ways to achieve the same.
- Collaborate well with everyone on the team. We communicate a lot and don’t hesitate to get quick feedback from other members on the team sooner than later.
- Can take ownership of goals and deliver them with high accountability.
Don’t hesitate to try out new technologies. At company, nobody is limited to a role. Every engineer in our team is an expert of at least one technology but often ventures out in adjacent technologies like React.js, Flutter, Data Platforms, AWS and Kubernetes. If you are not excited by this, you will not like working at company. Bonus: if you have experience in adjacent technologies like AWS (or any public cloud provider, Github Actions (or CircleCI), Kubernetes, Infrastructure as Code (Terraform, Pulumi, etc.), etc.
About Us:
At Tradelab Technologies Pvt Ltd, we don’t just build web applications, we create highperformance trading platforms tailored for brokers and financial institutions. Our platforms powerreal-time market analysis, ultra-low-latency trade execution, and seamless broker-client interactions. We work in a high-stakes, outcome-driven environment where brokers demand reliability, speed, and security. If you're an expert React developer who thrives on solving complex front-end engineering challenges in the brokerage and trading domain, this is the role for you.
Min 2 years of mobile development experience, with 1+ years in Flutter & Dart.
Proven ability to build and scale real-time, high-performance fintech applications.
A sharp eye for stunning UI/UX design that balances aesthetics with seamless functionality.
Mastery over state management solutions (Provider, Riverpod, BLoC, or similar).
Hands-on experience with real-time data streaming, push notifications, and WebSockets.
Strong expertise in security, encryption, and compliance—you know fintech demands precision.
A track record of integrating RESTful APIs, GraphQL, and third-party services into flawless mobile apps.
A mindset that thrives under pressure—we work fast, and we expect results.
Lead the development of world-class fintech mobile applications that redefine user expectations.
Architect and optimize blazing-fast, low-latency Flutter applications for financial markets.
Work with designers, backend engineers, and product teams to craft seamless, intuitive, and ultra secure user experiences.
Solve hard problems at scale—whether it’s optimizing performance, reducing load times, or ensuring
absolute security.
Push the boundaries of mobile fintech innovation, from AI-powered insights to predictive analytics.
Own your work end-to-end—no excuses, no hand-holding, just results.
What You Will Do:Must-Have Skills:
Min 2 years of mobile development experience, with 2+ years in Flutter & Dart.
Proven ability to build and scale real-time, high-performance fintech applications.
A sharp eye for stunning UI/UX design that balances aesthetics with seamless functionality.
Mastery over state management solutions (Provider, Riverpod, BLoC, or similar).
Hands-on experience with real-time data streaming, push notifications, and WebSockets.
Nice-to-Have Skills:
Experience in high-frequency trading, stock markets, or financial data visualization.
Contributionsto open-source Flutter projects or a portfolio of high-impact applications.
Knowledge of AI-driven UX, machine learning integrations, or automation in mobile apps.
A background in mentoring developers, leading mobile teams, or setting architectural standards.
Why Join Us?
Work with some of the sharpest minds in fintech and mobile engineering.
Build products that traders, investors, and financial professionals rely on daily.
A culture that values bold innovation, fast execution, and pushing boundaries.
Expect challenges, high expectations, and relentless pursuit of excellence.
Take complete ownership—from ideation to deployment, every pixel and every line of code should
scream excellence.
Competitive compensation, performance-driven growth, and a real opportunity to lead and shape the future of fintech mobile applications.
If you’re obsessed with performance, thrive under pressure, and are driven by results, we want you on our team. This is your chance to solve some of the toughest engineering challenges in
fintech. Step up. Apply now.
6+ years of total software development experience with minimum 3+ years in Flutter
Product-based company experience is mandatory (B2C scale preferred)
Proven ability to own end-to-end Flutter mobile architecture for high-scale apps
Strong expertise in Dart, Flutter SDK internals, and advanced state management (Bloc / Riverpod / Provider)
Hands-on experience with platform channels and native integrations (Android & iOS)
Deep knowledge of performance optimization: app startup time, FPS, memory leaks, widget rebuilds, rendering pipeline
Experience with profiling tools (Dart DevTools, Android Profiler, Xcode Instruments)
Strong skills in offline-first architecture, caching layers, and API integrations
Ability to optimize video playback, downloads, DRM, and OTT workflows
Strong command of clean code, SOLID principles, and scalable mobile system design
Experience reviewing code and mentoring engineers (Senior IC role
Design & implement new app modules based on the product requirements using the Flutter framework
Maintain existing codebases
Build reusable code and libraries for future use
Integrate user-interfaces elements developed by other developers
Build user interfaces designed by UI/UX designers
Integration of data storage solutions
Integrate various APIs from third parties
Debug existing apps components, fix issues, and avoid regressions
Collaborate closely with the teams of UI/UX designers, PMs, QAs, and other developers
Participate in software architecture, design discussions, and code reviews
Optimize application for maximum speed and scalability
Follow the company guidelines and best practices
SKILLS
You have a bachelor’s degree in computer science or a related discipline
Must have built at least two Android and/or iOS apps with Flutter
Proven working experience in software development
Working experience in mobile development Android or iOS
Have published one or more mobile apps in Google Play or App Store
Experience with third-party libraries and APIs
Working knowledge of the general mobile landscape, architectures, trends, and emerging technologies
Solid understanding of the full mobile development life cycle, including automated testing and building
Familiarity with SQL/NoSQL databases and their declarative query languages
Proficient understanding of code versioning tools, such as Git / Mercurial
Education: Bachelor’s degree
Salary: Based on the interview (Expected hike on the current CTC)
Job Types: Full-time, Permanent
Card91 is simplifying business payments by providing a plug and play issuance infrastructure
to businesses for domestic and cross-border payments. Our full stack platform enables
businesses to gain control and visibility into their payment flows, controlling the entire payment
lifecycle from onboarding, to issuance, to transaction and data reconciliation. The platform
aims to provide holistic solutions around payment issuance and distribution management. Our
deep focus in payments will help us in bringing new issuance formats as well as technologies
to businesses.
The company has been founded by seasoned technology entrepreneurs who have founded
successful companies like Myntra, Mastiff Technologies earlier. Headquartered in Bangalore,
with presence in Mumbai and NCR, Card91 aims to disrupt the payment infrastructure space
in the issuer-processor segment.
Position: Python Developer
We are building our core team which will be responsible for a highly scalable, always available
microservices based backend for payment processing. The developer will be involved with the
design, implementation, and execution from day one and build a robust, secure, and scalable
payment processing engine.
Roles & Responsibilities
● Individual Contributors talking full ownership of the micro services
● Design and Implement the micro services from scratch
● Be creative and always try to evaluate new strategies to execute faster
● Team player and always eager to teach new team members about the code,
● structure and design
● Not afraid of bringing new designs (even languages) which will make the system
execute faster
Experience and Qualifications
● Having 2 - 5 years of experience
● Degree from a premier institute like IIT/NIT/BITS is desirable
● A strong expertise in Python framework (like Django, Flask or Pyramid)
● Experience in creating APIs with design standards, patterns and best-practices
● Knowledge of object-relational mapping (ORM)
● GoLang experience is a big plus
● Experience building web services in REST
● knowledge and hands-on experience in API security standards and implementation
(Oauth, OpenId)
● Experience in developing highly scalable and reliable web applications, including
integration with internal and external systems.
● Experience in databases like MySQL and NoSQL db like Cassandra, etc.
● Experience with Cloud computing AWS & Microservices architecture
● Exposure to front end technologies like VueJS, ReactJS etc is an advantage
● Docker & Kubernetes experience is a big plus
● Previous experience of Fintech company is an added advantage
What’s on offer
● Vibrant, fun and rewarding culture that nurtures and promotes excellence
● Opportunities to learn and interact with payment industry leaders
● Competitive remuneration, group health insurance & PF
● Other office perks of being part of an early-stage startup
Location: HSR Layout, Bangalore
1. Must be very strong in Objective-C, Cocoa, Cocoa Touch, and XCode
2. Must have built and published commercial iPhone and iPad applications
3. Experience with Objective-C, JavaScript, and JSON
4. Experience writing rich GUI's for the iPhone and iPad
5. should able to demonstrate apps that was developed and in app store.
6. Well verse in OOPs/Objective C concepts, Web service and Parsing JSON/XML.
7. Expertise in iPhone development, including implementing applications with standard iPhone / iPad UI components, creating custom UI.
• Proficient in Swift, Swift UI, Cocoa Touch and iOS SDK
• Strong knowledge in UI design principles, patterns, and best practices
• Experience with third-party libraries like Google Maps, Firebase etc
• Experience in Payment gateway integration
• Experience in integrating social media libraries for apps
• Should have experience in handling a team
• Knowledge and experience of the Software Development life cycles like Agile, Scrum and
• Waterfall Model.
• Knowledge on cross platform application development
• Experience in publishing an iOS app on App Store
• Experience in team environment, including design, coding, and revision control practices
• Very good communication skills.
• Ability to contribute individually and drive the team
• Work closely with stakeholders and UX teams to execute an idea from concept to delivery using excellent software design
• Identify and correct bottlenecks and fix bugs
• Working knowledge of the general mobile landscape,
Requirements
- High self motivation to lead & build projects from beginning to end;
- You've shipped multiple products and are willing/able to demonstrate how you solved specific problems to solve users needs;
- Excellent communication in presenting your code and communicating what problems they are solving while giving/receiving feedback;
- Ability to quickly grasp goals and requirements from light specifications;
- Must be able to effectively & efficiently work with stakeholders spreads across many timezones;
- 5+ years of Android experience working in a modern commercial web development environment and shipping solid product;
- Experience in Springboot, Microservices, JPA, oracle database.
- Must have experience in authentication mechanism like LDAP, SSO, any authentication server, role management
Perks
- Ground floor opportunity with the team; shape the strategic direction of the company.
- Work with sharp, motivated and passionate co-workers spread across many regions.
- Rare opportunity to make real positive impact on the world!
Position: Senior Java Developer / Tech Lead
Work Location: Bangalore; India
Type of Employment: Full-time, Permanent
Experience: 6 to 10 years of Experience
- Proficient in Java/J2EE , core java, full stack development experience ( Database to UX)
- Must be proficient with integration with third-party applications within the enterprise and outside the organizations (API)
- Must be good in writing highly optimized code.
- Must be good at abstracting solutions - reduce time and cost to build
- Experience with Workflow Engines like Activiti will be an advantage
- Good understanding of native Android code/interface with Android apps, if preferable
- Must be an expert in managing data at the application database level - Transaction and Reporting database design
- Must be good in coding & product development
- Experienced with monitoring and observability
- Experienced with production support and debugging (heap dumps, thread dumps etc)
- Experience in Logistics domain is desirable
- Prior startup experience is preferred
Requirements:
- Bachelor’s or equivalent degree in Computer Science / BE
- Ability to handle the team of 7 to 8 members and giving guidance to the team
- Strong problem-solving skills
- Ability to respect deadlines and will to perform in an accelerated learning environment.
Key Skills: Java, J2EE, JSP, Spring, Angular, Apache, MySQL, SQL Queries,LinuxEnviroment, HTML, JQuery, Java Script, Version Control, .Net, Activiti, IBatis, Maven – Build, Git Hub, J Bos, CSS, HTML 5, JIRA, Selenium,AWS – Server Handling, Android, React JS
Note: Hiring from logistics and Ecommerce company only and 30-45 days’ notice is ok and can also buy back notice if required.










