Backend Engineer

About the Role

We are looking for enthusiastic Backend Developer Interns to join our team remotely for a 3-month internship. This is an excellent opportunity to gain hands-on experience in backend development, work on real projects, and expand your technical skills. While this is an unpaid internship, interns who successfully complete the program will receive a Completion Certificate and a Letter of Recommendation.

Responsibilities

• Assist in developing and maintaining backend services and APIs.
• Work with databases (SQL/NoSQL) for data storage and retrieval.
• Collaborate with frontend developers to integrate user-facing elements with server-side logic.
• Write clean, efficient, and reusable code.
• Debug, troubleshoot, and optimize backend performance.
• Participate in code reviews and team discussions.
• Document technical processes and contributions.

Requirements

• Basic knowledge of at least one backend language/framework (Node.js, Python/Django/Flask, Java/Spring Boot, or similar).
• Understanding of RESTful APIs and web services.
• Familiarity with relational and/or NoSQL databases (MySQL, PostgreSQL, MongoDB, etc.).
• Knowledge of Git/GitHub for version control.
• Strong problem-solving and analytical skills.
• Ability to work independently in a remote environment.
• Good communication skills and eagerness to learn.

What You’ll Gain

• Real-world experience in backend development.
• Mentorship and exposure to industry practices.
• Completion Certificate at the end of the internship.
• Letter of Recommendation based on performance.
• Opportunity to strengthen your portfolio with live projects.

Internship Details

• Duration: 3 months
• Location: Remote (Work from Home)
• Stipend: Unpaid
• Perks: Completion Certificate + Letter of Recommendation

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.

Backend Engineer (MongoDB / API Integrations / AWS / Vectorization)

Position Summary

We are hiring a Backend Engineer with expertise in MongoDB, data vectorization, and advanced AI/LLM integrations. The ideal candidate will have hands-on experience developing backend systems that power intelligent data-driven applications, including robust API integrations with major social media platforms (Meta, Instagram, Facebook, with expansion to TikTok, Snapchat, etc.). In addition, this role requires deep AWS experience (Lambda, S3, EventBridge) to manage serverless workflows, automate cron jobs, and execute both scheduled and manual data pulls. You will collaborate closely with frontend developers and AI engineers to deliver scalable, resilient APIs that power our platform.

Key Responsibilities

• Design, implement, and maintain backend services with MongoDB and scalable data models.
• Build pipelines to vectorize data for retrieval-augmented generation (RAG) and other AI-driven features.
• Develop robust API integrations with major social platforms (Meta, Instagram Graph API, Facebook API; expand to TikTok, Snapchat, etc.).
• Implement and maintain AWS Lambda serverless functions for scalable backend processes.
• Use AWS EventBridge to schedule cron jobs and manage event-driven workflows.
• Leverage AWS S3 for structured and unstructured data storage, retrieval, and processing.
• Build workflows for manual and automated data pulls from external APIs.
• Optimize backend systems for performance, scalability, and reliability at high data volumes.
• Collaborate with frontend engineers to ensure smooth integration into Next.js applications.
• Ensure security, compliance, and best practices in API authentication (OAuth, tokens, etc.).
• Contribute to architecture planning, documentation, and system design reviews.

Required Skills/Qualifications

• Strong expertise with MongoDB (including Atlas) and schema design.
• Experience with data vectorization and embeddings (OpenAI, Pinecone, MongoDB Atlas Vector Search, etc.).
• Proven track record of social media API integrations (Meta, Instagram, Facebook; additional platforms a plus).
• Proficiency in Node.js, Python, or other backend languages for API development.
• Deep understanding of AWS services:
• Lambda for serverless functions.
• S3 for structured/unstructured data storage.
• EventBridge for cron jobs, scheduled tasks, and event-driven workflows.
• Strong understanding of REST and GraphQL API design.
• Experience with data optimization, caching, and large-scale API performance.

Preferred Skills/Experience

• Experience with real-time data pipelines (Kafka, Kinesis, or similar).
• Familiarity with CI/CD pipelines and automated deployments on AWS.
• Knowledge of serverless architecture best practices.
• Background in SaaS platform development or data analytics systems.

Requirement:

Position: Senior Python developer/c++

Location: Noida

Experience: 5 to 7 years

CTC: As per company standards

NP: Immediate to 15 days

Job Responsibilities

1.    Develop backend for applications in eCommerce / insurance/wealth management businesses

2.    Design technically sound systems and deliver results in a fast manner

3.    Building highly performant applications setting top standards in respective industries

 Basic qualifications

1.     5 -7 years experience building highly performant applications in Python / C++

2.      Good grasp of data structures and proficiency in problem-solving

3.      Knowledge of design patterns

Job description

Key Responsibilities

• Design, develop, and maintain serverless applications using AWS services such as Lambda, API Gateway, DynamoDB, and S3.
• Collaborate with front-end developers to integrate user-facing elements with server-side logic.
• Build and maintain RESTful APIs to support web and mobile applications.
• Implement security best practices for AWS services and manage IAM roles and policies.
• Optimize application performance, scalability, and reliability through monitoring and testing.
• Write clean, maintainable, and efficient code following best practices and design patterns.
• Participate in code reviews, providing constructive feedback to peers.
• Troubleshoot and debug applications, identifying performance bottlenecks and areas for improvement.
• Stay updated with emerging technologies and industry trends related to serverless architectures and Python development.

Qualifications

• Bachelors degree in Computer Science, Engineering, or related field, or equivalent experience.
• Proven experience as a Python backend developer, with a strong portfolio of serverless applications.
• Proficiency in AWS services, particularly in serverless architectures (Lambda, API Gateway, DynamoDB, etc.).
• Solid understanding of RESTful API design principles and best practices.
• Familiarity with CI/CD practices and tools (e.g., AWS CodePipeline, Jenkins).
• Experience with containerization technologies (Docker, Kubernetes) is a plus.
• Strong problem-solving skills and the ability to work independently and collaboratively.
• Excellent communication skills, both verbal and written.

Preferred Skills

• Experience with frontend technologies (JavaScript, React, Angular) is a plus.
• Knowledge of data storage solutions (SQL and NoSQL databases).
• AWS certifications (e.g., AWS Certified Developer Associate) are a plus.

JOB RESPONSIBILITIES (About 10 - 11 years and at least 9 years relevant experience)

Develop Java webservices and components according to a detailed design document.

Build efficient, reusable and reliable Java code per industry best practices.

Follow TDD approach and ensure unit-test coverage meets quality requirements.

Develop Integration tests to ensure coding adheres to acceptance criteria and verify end-to-end behavior of the system.

Ensure best possible performance, quality and responsiveness of applications.

EXPERIENCE / SKILLS

Must have experience developing in Java latest version (least version is 8)

Must have experience in design and development using Micro service architecture

Solid knowledge in OOP concepts, and design principles/patterns for developing scalable applications

Must have experience developing Spring Boot applications

Must have experience developing database access layer using Spring Data JPA/Hibernates

Must have experience in developing REST Services using Spring

Good working experience in development of event driven systems using any framework

Must have experience with any RDBMS and at least one NoSQL database preferably PostgresSQL and Mongo DB

Must have experience writing unit and integration tests using Junit

Must have experience using mock frameworks like Mockito, WireMock

Must have experience using Git

Must have experience with CI / CD

Basic hands-on experience in one of the cloud provider (AWS/Azure) or at least docker and Kubernetes

Familiarity with build tools Maven or Gradle

Added advantage with experience of Reactive and Functional Programming

Responsibilities:

• Ability to work in an existing codebase and collaborate with a diverse team
• Experience in building enterprise-scale backend REST APIs with frameworks such as Nest.js & Express.js using an API-first paradigm
• Intimate knowledge of crafting highly performant database queries
• Hands-on experience implementing relational database structures, including tables, indexes, views, etc.
• A mindset towards building systems for the cloud and DevOps fundamentals
• Working knowledge of cloud infrastructure services is good to have. If not then willingness to learn should be there.
• Focus towards building security, performance, and scalability into services from the beginning
• Experience with debugging code and troubleshooting technical issues in order to craft appropriate solutions

Company Introduction –

• Information Security & Data Analytics Series A funded company.
• Working in cutting edge technologies - Using AI for predictive intelligence and Facial Biometrics.
• Among Top 5 Cyber excellence companies globally (Holger Schulze awards)
• Bronze award for best startup of the year (Indian Express IT awards), only cyber Security Company in top 3.
• More than 100+ clients in India.

Job Description:-

Job Title: Python Developer

Key Requirements:-

• Mine data from structured and unstructured data sources.
• Extract data (text, images, and videos) from multiple documents in different formats.
• Extract information and intelligence from data.
• Extract data based on regular expressions.
• Collect data from structured RDBMS databases.
• Work closely with Project/Business/Research teams to provide mined data/intelligence for analysis.
• Should have strong exposure to core python skills like multiprocessing, multithreading, file handling, data structure like JSON, Data frames, and User Defined Data structure.
• Should have excellent knowledge of classes, file handling, memory manipulations.
• Strong Knowledge in Python.
• Strong exposure to frond end languages like CSS, JavaScript, Ajax etc.
• Should have exposure to requests, Frontera, scarpy-cluster, elastic-search, distributed computing tools like Kafka, Hbase, Redis, Zookeeper, restAPI.
• Should be familiar with *nix development environment.
• Knowledge of Django will be added advantage.
• Excellent knowledge on Web Crawling/Web scraping.
• Should have used scraping modules like Selenium, Scrapy, and Beautiful soup.
• Experience with text processing.
• Basics of databases. Good troubleshooting and debugging skills.

 
Education

   B.Tech, MCA, Computer Engineering