Cybersecurity Agent Developer

About the Role:

We’re looking for a Python Developer to build, optimize, and scale applications that power our trading systems. You’ll work on automation, server clusters, and high-performance infrastructure in a fast-paced, tech-driven environment.

What you’ll do:

• Build and test applications end-to-end.
• Automate workflows with scripts.
• Optimize system performance and reliability.
• Manage code versions and collaborate with peers.
• Work with clusters of 100+ servers.

What we’re looking for:

• Strong Python fundamentals (OOP, data structures, algorithms).
• Experience with Linux commands, Bash scripting.
• Basics of Numpy, Matplotlib, and PostgreSQL.
• Hands-on with automation and scripting tools.
• Problem solver with a focus on scalability & optimization.

Why Dolat?

• Work at the intersection of finance & tech.
• Opportunity to solve complex engineering problems.
• Learn and grow with a team of smart, collaborative engineers.

Senior C++/Qt Backend Engineer

(High-Performance Systems)

Location: Noida (On-site)

Introduction: Who We Are

We are a lean, product-based startup building the next generation of industrial robotics. Our products are deployed in critical, high-stakes environments, including Railways, Oil & Gas, Chemicals & Fertilizers, and Offshore operations.

We are not just writing code; we are building rugged, intelligent machines that operate in the real world.

1. The Mission (Pure Backend Focus)

You will architect the high-performance C++ Backend of our robotics software.

• No UI Work: You will NOT be designing UI pixels or writing QML front-end code.
• The Engine: Your mission is to build the “invisible engine” that processes 50 Mbps of raw scientific data and feeds it efficiently to the UI layer.
• Ownership: You own the threads, the data structures, and the logic.

2. Critical Outcomes (The First 4 Months)

• Architect the Data Ingestion Layer:
• Design a C++ backend capable of ingesting 50 Mbps of live sensor data (from embedded hardware) without dropping packets or consuming excessive CPU.
• Decouple Backend from UI:
• Implement Ring Buffers and Lock-Free Queues to separate high-speed data acquisition threads from the main Qt Event Loop, ensuring the backend never freezes the UI.
• Crash-Proof Concurrency:
• Refactor the threading model to eliminate Race Conditions and Deadlocks using proper synchronization (Mutexes/Semaphores) or lock-free designs.
• Efficient IPC Implementation:
• Establish robust Inter-Process Communication (Shared Memory / Sockets) to allow the C++ backend to exchange data with other Linux processes instantly.

3. Strategic Outcomes (Months 5 Onward)

As the product matures, your focus will shift from “Building the Engine” to “Hardening and Scaling the Ecosystem.”

• Robust OTA & Redundancy:
• Implement Linux A/B Partitioning strategies. You will design the fallback mechanism where the system uses atomic updates to revert to the last known good configuration in case of an update failure, ensuring high availability in remote offshore locations.
• Containerized Deployment:
• Move from manual builds to automated deployment. You will containerize the application (Docker / Podman) and integrate it with Jenkins / GitLab CI to enable seamless remote deployment to the robot fleet.
• Remote Diagnostics Engine:
• Build the internal logic to capture, compress, and transmit critical system logs and core dumps securely to the cloud without saturating the robot’s bandwidth.
• Fleet Monitoring Infrastructure:
• Distinct from simple logging, you will architect the heartbeat and telemetry protocols that allow our central command to monitor the health of robots deployed in railways and chemical plants in real time.

4. Competencies (Must-Haves)

• Qt Core (Backend Only):
• Expert in QObject, QThread, QEventLoop, and Signal/Slot mechanisms. You understand how to push data to QML, but you don’t style it.
• High-Performance C++:
• You handle data at the byte level, preferring Circular Buffers (Ring Buffers) over standard vectors for streams.
• Concurrency Mastery:
• You know when to use Lock-Free programming to avoid thread contention and can manage interactions between Data Acquisition and Processing threads without bottlenecks.
• Design Patterns:
• Competence in Producer-Consumer (for streams), Singleton (hardware managers), and Factory patterns.
• Linux System Programming:
• Comfortable with IPC (Shared Memory, Unix Domain Sockets) and optimizing process priorities.

5. The “Squad” (Your Team)

• Embedded Engineers:
• They push the raw 50 Mbps stream to the OS; you write the drivers to catch it.
• UI / Frontend Developers:
• They handle QML / UX; you provide the data APIs they need.
• Robotics (ROS) Engineers:
• You ensure their heavy algorithms don’t starve your data acquisition threads.
• Testers:
• You ensure your code stands up to their stress testing.

6. Why This Role Defines Your Career

• Deep Backend Engineering:
• Escape the “button styling” trap. This is 100% logic, memory management, and architecture.
• Real Engineering Problems:
• Solve race conditions, memory leaks, and high-velocity data streams.
• Architectural Autonomy:
• You decide how the data moves and choose the patterns. You own the “Engine Room.”

Hiring For SDE II - Python (Remote)

The Impact you will create:

• Build campaign generation services which can send app notifications at a speed of 10 million a minute

• Dashboards to show Real time key performance indicators to clients

• Develop complex user segmentation engines which creates segments on Terabytes of data within few seconds

• Building highly available & horizontally scalable platform services for ever growing data

• Use cloud based services like AWS Lambda for blazing fast throughput & auto scalability

• Work on complex analytics on terabytes of data like building Cohorts, Funnels, User path analysis, Recency Frequency & Monetary analysis at blazing speed

• You will build backend services and APIs to create scalable engineering systems.

• As an individual contributor, you will tackle some of our broadest technical challenges that requires deep technical knowledge, hands-on software development and seamless collaboration with all functions.

• You will envision and develop features that are highly reliable and fault tolerant to deliver a superior customer experience.

• Collaborating various highly-functional teams in the company to meet deliverables throughout the software development lifecycle.

• Identify and improvise areas of improvement through data insights and research.

Primary Responsibilities

• End-to-end ownership of product development, from design, through implementation, testing, deployment, and maintenance

• Translating high-level requirements and end-user use cases into design proposals, decomposing complex features into smaller, short-term deliverable tasks

• Maintaining constant focus on scalability, performance and robustness of architecture

• Designing and implementing logging, monitoring and alerting systems for existing and new infrastructure

• Documenting API's and architecture design

• Mentor and guide juniors on their path to become solid developers

   

What we look for?

• 4+ of industry experience in technical leadership roles

• Solid knowledge of Python, SQL, NoSQL, shell scripting and Linux operating environment

• End-to-end experience in design and development of highly scalable enterprise and cloud data products

• Ability to challenge and redefine existing architecture to create robust, scalable and reliable products

• Hands-on experience with design and troubleshooting of scalable web services, queue based systems, distributed databases and streaming services

• Experience with modern DevOps technologies such as kOps, Kubernetes and Docker, CI/CD, monitoring and autoscaling

We are looking for candidates with:

• Skills: C++ experience with real-time analytics
• Experience: 5-10 years
• Domain: Manufacturing
• Requirement: 5 resources

Primary Duties

• Build a broad knowledge across various systems and processes via knowledge transfer and capture any missing information on the wiki

• Gather software requirements by talking to various stakeholders and document them

• Implement software solutions after discussing the requirements and taking direction from the Technical lead and talking to other colleagues within and outside the team

• Provide necessary effort and time estimates for tasks to aid scheduling and prioritization

• Provide necessary 3rd line support to the Operations teams including software fixes as needed

• Work on any BAU development activity including on-boarding new data sets and delivering new markets into the system

• Work with external vendors from time to time to gather necessary requirements for new data or changes to existing data specifications

• Maintain pro-active communication with relevant stakeholders and keep them updated on progress

General

• Any other duties commensurate with the post holder’s position and seniority; and
• All employees should understand that it is their personal responsibility to comply with all organisational, statutory and regulatory policies and procedures.

Experience, Knowledge & Skills

Essential

• 4+ years’ experience of programming in Java.
• 4+ years’ experience working with SQL including complex queries, stored procedures, views, database design and solid understanding of database concepts (preferably SQL Server)
• Experience of both Linux and Windows environments, scripting and tools
• Willing to carry out operational data tasks alongside developing new solutions
• Well organised with the ability to prioritise and manage multiple streams of work
• Excellent communication skills

Beneficial

• Experience working with Cloud environments (preferably AWS)
• Experience in handling financial data sets and familiarity with financial instruments (equities, futures, FX)
• Experience working with data pipelines and building ETL solutions
• Experience working with tools like Flink, Kafka and Tableau

Educational & Professional Qualifications

• Educated to degree (or equivalent) level or higher.
• A degree with mathematical and computing content (e.g. Computer Science, Maths, Physics)