Backend Developer

Role: Core infrastructure for two global applications.

Key responsibilities:

Heavy Data Lifting: Designing and maintaining complex MongoDB aggregation pipelines and executing high-volume bulk updates.

Systems Connectivity: Managing the lifecycle of Bridges, WebSockets, and REST APIs for global traffic.

Global Reliability: Troubleshooting performance regressions, managing SSL/TLS certificates, and optimizing AWS S3/EC2 resources.

Core Logic: Implementing server-side push notifications, custom payment flows, and background Cron orchestration.

Requirements (Must Have)

Production Experience: Proven experience managing backend services for live, high-traffic applications. (Must have)

Note: Learning projects, bootcamps, and online courses will not be considered.

Python Mastery: Expert-level proficiency in backend Python development. (Must have)

MongoDB Expertise: Deep knowledge of Aggregations and Bulk operations. (Must have)

AWS Proficiency: Direct experience with S3 and EC2 in a production setting. (Must have)

Infrastructure Logic: Ability to manage SSL/Encryption and optimize resource allocation (Cron vs. API). (Must have)

Job Title : Perl Developer

Experience : 6+ Years

Engagement Type : C2C (Contract)

Location : Remote

Shift Timing : General Shift

Job Summary :

We are seeking an experienced Perl Developer with strong scripting and database expertise to support an application modernization initiative.

The role involves code conversion for compatibility between Sybase and MS SQL, ensuring performance, reliability, and maintainability of mission-critical systems.

You will work closely with the engineering team to enhance, migrate, and optimize codebases written primarily in Perl, with partial transitions toward Python for long-term sustainability.

Mandatory Skills :

Perl, Python, T-SQL, SQL Server, ADO, Git, Release Management, Monitoring Tools, Automation Tools, CI/CD, Sybase-to-MSSQL Code Conversion

Key Responsibilities :

• Analyze and convert existing application code from Sybase to MS SQL for compatibility and optimization.
• Maintain and enhance existing Perl scripts and applications.
• Where feasible, refactor or rewrite legacy components into Python for improved scalability.
• Collaborate with development and release teams to ensure seamless integration and deployment.
• Follow established Git/ADO version control and release management practices.
• (Optional) Contribute to monitoring, alerting, and automation improvements.

Required Skills :

• Strong Perl development experience (primary requirement).
• Proficiency in Python for code conversion and sustainability initiatives.
• Hands-on experience with T-SQL / SQL Server for database interaction and optimization.
• Familiarity with ADO/Git and standard release management workflows.

Nice to Have :

• Experience with monitoring and alerting tools.
• Familiarity with automation tools and CI/CD pipelines.

Job Title : Python Developer (Crawlers / APIs / Async Programming)

Experience : 3 to 6 Years

Notice Period : Immediate to 15 Days

Job Location : Bangalore

Interview Process : 1 Internal Round + 2 Client Rounds

Mandatory Skill :

Strong Python experience with crawlers, REST APIs, async/multithreading, and PostgreSQL/MySQL in a cloud environment.

Role Overview :

We are looking for a highly skilled Python Developer with strong hands-on experience in building web crawlers, REST APIs, and advanced Python applications. The ideal candidate should be proficient in writing clean, efficient, and scalable code, and comfortable working with asynchronous programming, multithreading, and cloud-native environments.

Key Responsibilities :

• Build and ship new features and fixes in a fast-paced environment.
• Design, develop, test, and deploy scalable Python applications.
• Develop robust web crawlers and RESTful APIs.
• Write clean, secure, and maintainable code following SOLID principles.
• Design and document features, components, and systems.
• Collaborate closely with cross-functional teams.
• Support, monitor, and maintain existing products.
• Continuously learn and improve technical expertise.

Mandatory Skills :

• 3 to 5 years of strong hands-on experience in Python
• Experience in building web crawlers and REST APIs
• Strong knowledge of multithreading and async I/O in Python
• Experience with PostgreSQL or MySQL
• Strong understanding of OOP/Functional Programming and clean coding practices
• Experience with Docker / Containers
• Exposure to Cloud platforms (AWS or GCP)
• Excellent written and verbal communication skills
• High ownership mindset and accountability

Good to Have :

• Experience with Kubernetes, RabbitMQ, Redis
• Contributions to Open Source Projects
• Experience working with AI APIs and tools

What the Interview Will Focus On :

• Problem-solving and coding skills
• Hands-on Python programming
• Low-Level Design
• Database Design concepts

Title: Quantitative Developer

Location : Mumbai

Candidates preferred with Master's

Who We Are

At Dolat Capital, we are a collective of traders, puzzle solvers, and tech enthusiasts passionate about decoding the intricacies of financial markets. From navigating volatile trading conditions with precision to continuously refining cutting-edge technologies and quantitative strategies, our work thrives at the intersection of finance and engineering.

We operate a robust, ultra-low latency infrastructure built for market-making and active trading across Equities, Futures, and Options—with some of the highest fill rates in the industry. If you're excited by technology, trading, and critical thinking, this is the place to evolve your skills into world class capabilities.

What You Will Do

This role offers a unique opportunity to work across both quantitative development and high frequency trading. You'll engineer trading systems, design and implement algorithmic strategies, and directly participate in live trading execution and strategy enhancement.

1. Quantitative Strategy & Trading Execution

• Design, implement, and optimize quantitative strategies for trading derivatives, index options, and ETFs
• Trade across options, equities, and futures, using proprietary HFT platforms
• Monitor and manage PnL performance, targeting Sharpe ratios of 6+
• Stay proactive in identifying market opportunities and inefficiencies in real-time HFT environments
• Analyze market behavior, particularly in APAC indices, to adjust models and positions dynamically

2. Trading Systems Development

• Build and enhance low-latency, high-throughput trading systems
• Develop tools to simulate trading strategies and access historical market data
• Design performance-optimized data structures and algorithms for fast execution
• Implement real-time risk management and performance tracking systems

3. Algorithmic and Quantitative Analysis

• Collaborate with researchers and traders to integrate strategies into live environments
• Use statistical methods and data-driven analysis to validate and refine models
• Work with large-scale HFT tick data using Python / C++

4. AI/ML Integration

• Develop and train AI/ML models for market prediction, signal detection, and strategy enhancement
• Analyze large datasets to detect patterns and alpha signals

5. System & Network Optimization

• Optimize distributed and concurrent systems for high-transaction throughput
• Enhance platform performance through network and systems programming
• Utilize deep knowledge of TCP/UDP and network protocols

6. Collaboration & Mentorship

• Collaborate cross-functionally with traders, engineers, and data scientists
• Represent Dolat in campus recruitment and industry events as a technical mentor

What We Are Looking For:

• Strong foundation in data structures, algorithms, and object-oriented programming (C++).
• Experience with AI/ML frameworks like TensorFlow, PyTorch, or Scikit-learn.
• Hands-on experience in systems programming within a Linux environment.
• Proficient and Hands on programming using python/ C++
• Familiarity with distributed computing and high-concurrency systems.
• Knowledge of network programming, including TCP/UDP protocols.
• Strong analytical and problem-solving skills.

A passion for technology-driven solutions in the financial markets.

1.   Should have worked in Agile methodology and microservices architecture

2.   Should have 7+ years of experience in Python and Django framework

3.   Should have a good knowledge of DRF

4.   Should have knowledge of User Auth (JWT, OAuth2), API Auth, Access Control List, etc.

5.   Should have working experience in session management in Django

6.   Should have expertise in the Django MVC and uses of templates in frontend

7.   Should have working experience in PostgreSQL

8.   Should have working experience in the RabbitMQ messaging channel and Celery Analytics

9.   Good to have javascript implementation knowledge in Django templates

We are seeking a skilled Node.js + Python Developer to join our team. The successful candidate will be responsible for developing and maintaining web applications using Node.js and Python. The ideal candidate will have a strong understanding of both Node.js and Python, as well as web application development. Responsibilities:

Developing and maintaining web applications using Node.js and Python

Write clean and efficient code that adheres to Node.js and Python coding standards

Collaborate with other developers and team members to design and implement new features

Troubleshoot and debug issues in existing code

Create and maintain technical documentation

Requirements:

Strong knowledge of Node.js and Python

Familiarity with front-end technologies such as HTML, CSS, and JavaScript

Experience with MySQL/Mongo and database design

Good understanding of object-oriented programming and design patterns

Strong problem-solving skills and attention to detail

Good communication skills and ability to work in a team environment

Preferred Qualifications:

Experience with popular Node.js frameworks such as Express or Koa

Experience with OpenAi APIs

Knowledge of machine learning and data science libraries in Python such as TensorFlow, Scikit-learn, and Pandas

Experience with RESTful API development

Experience with payment gateway integrations

• Programming experience : 5 to 8 years of programming experience
• Strong technical knowledge in any of the following programming languages : Ruby on Rails /Python/Java and willing to learn and work in Node.js.
• Good Programming aptitude
• Have experience designing and building large scalable web services.
• Have an in-depth understanding of database technologies (SQL and NoSQL) 
• Have experience building RESTful APIs and have good knowledge of RESTful design patterns.
• Be able to communicate and work well within a team
• Brownie points if you have worked on Typescript & Nest.js