Software Development Engineer

• Design, develop, and maintain RESTful APIs and backend services using Golang.
• Collaborate with product managers, architects, and other developers to translate business requirements into scalable technical solutions.
• Optimize and enhance system performance and reliability.
• Implement best practices for coding, testing, and deployment.
• Troubleshoot, debug, and upgrade existing software.
• Participate in code reviews and contribute to team knowledge sharing.

Candidate Attributes:

• Strong expertise in API development.
• Excellent problem-solving skills.
• Ability to work in a fast-paced, collaborative environment.
• 1–3 years of hands-on experience with Golang development.
• Proven experience in API design, development, and integration.
• Solid understanding of microservices architecture and RESTful services.
• Experience with databases (SQL or NoSQL such as PostgreSQL, MySQL, MongoDB, etc.).
• Familiarity with Docker, Kubernetes, or other containerization tools is a plus.
• Understanding of Git, CI/CD pipelines, and agile methodologies.
• Strong problem-solving and debugging skills.

Job Title: Lead Software Engineer

Experience: 4 - 12 yr

Department: Software

Reports To: Senior Software Engineer / Software Architect

Purpose of the Role

The incumbent will be responsible for designing and developing robust software solutions for products in the domains of Warehouse Automation, Industrial Automation, Robotics, and IoT. The role includes defining software architecture, ensuring scalability and performance, and mentoring the development team to drive technical excellence and innovation.

Technical Skills Required

• Proven experience in designing, developing, and deploying high-volume, scalable applications.
• Expertise in distributed systems, microservices, and central system architectures.
• Programming & Frameworks: Proficiency in Java 17+.
• Experience with frameworks such as Spring, Hibernate, Kubernetes, and RESTful APIs.
• Knowledge of JPA, MS SQL, and database modelling/design.
• Hands-on experience with GCP, AWS, or Azure for cloud architecture.
• Familiarity with virtualization and containerization technologies.
• Strong skills in data modelling and database design.
• Knowledge of secure coding practices.
• Tech stack: Java, MSSQL, MySQL, Spring Boot, Redis, Data Structures, Linux, basics of Kubernetes.

Behavioural Skills Required

• Attention to Detail (Proficient)
• Problem Solving
• Decision Making
• Collaborative approach
• Adaptability to a volatile environment
• Accountability
• Good Leadership skills

Job Responsibilities

• Understand requirements and define database and application structure under guidance of Software Architect.
• Write high-quality, scalable, and efficient code.
• Prepare Functional Requirement Documents (FRD) based on inputs from BA team.
• Guide junior and mid-level developers and provide technical support.
• Collaborate to identify and fix technical issues in UAT/Production.
• Work closely to meet project deadlines.
• Take ownership of product implementations at customer sites.
• Hands-on development for assigned modules/products.
• Handle application performance in production.
• Work with customers to understand automation requirements.
• Review and merge code changes from the team.
• Conduct sprint meetings, demos, and resolve development roadblocks.
• Optimize code for performance and efficiency.

**Company Overview**

We are a VC-backed fintech startup developing an innovative online trading platform. As we scale, we're seeking a skilled Backend Engineer with expertise in Python to join our growing team and help build a robust, scalable infrastructure for our cutting-edge trading application.

We're based out of the UK and have our engineering team in India.

**Job Description**

We are looking for a backend developer who specialises in Python. Your role will focus on developing and maintaining the server-side logic, optimising performance, and ensuring seamless integration with the frontend. You’ll work closely with the engineering and product teams to deliver a high-quality, secure, and scalable platform.

**Responsibilities**

1. Develop and maintain server-side logic using Python

2. Design and implement APIs for seamless integration with frontend components

3. Optimise backend performance and scalability for high traffic and large data loads

4. Build and maintain databases, ensuring security, data integrity, and optimal performance

5. Collaborate with frontend engineers to ensure smooth integration between backend and frontend systems

6. Troubleshoot, debug, and optimise backend infrastructure

7. Implement data protection, security protocols, and authentication mechanisms (e.g., JWT)

8. Maintain and enhance real-time communication systems using WebSockets or similar protocols

**Required Skills**

1. Strong proficiency in Python and related technologies, knowledge of databases and SQL, and experience with web frameworks like Django or FastAPI

2. Strong analytical and troubleshooting skills, and the ability to solve problems

3. Good understanding of OOPs, task broking services, Queues, Redis

4. Familiarity with RESTful API design and integration

5. Strong understanding of database management (e.g., PostgreSQL, Redis) and caching strategies

6. Familiarity with modern authentication and authorization mechanisms (e.g., JWT, OAuth)

7. Proficiency in working with cloud hosting services (AWS, Google Cloud, etc.)

8. Experience with containerization and orchestration tools (Docker, Kubernetes)

9. Knowledge of real-time communication protocols (e.g., WebSockets, TCP, SSE)

10. Strong understanding of security best practices for server-side applications

11. Experience with version control (Git) and CI/CD pipelines

12. Minimum of 2-3.5 years of experience building scalable backend systems

**Perks**

1. Work From Anywhere Flexibility

2. Unlimited Leaves policy*

3. Competitive salary and unlimited growth opportunities

4. Insights on how HFT is done using cutting edge technology

If you’re passionate about building scalable, high-performance backend systems and want to be part of a cutting-edge fintech startup, we’d love to hear from you!

About Root Node

We’re an early-stage startup building intelligent tools for planning, scheduling, and optimization—starting with timetabling and warehouse logistics. Backed by deep domain expertise and a growing customer pipeline, we’re now building our core tech team. This is not just a coding job — it's a chance to build something meaningful from the ground up.

About the job

• Design and implement robust backend systems and APIs using Java or similar backend language and Spring Boot or equivalent frameworks
• Integrate backend services with existing custom ERP systems 
• Work closely with the founder on product architecture, feature prioritization, and go-to-market feedback
• Take full ownership of features — from system design and development to deployment and iterative improvements
• Help shape our engineering culture and technical foundations

You're a Great Fit If You:

• Have 3+ years of experience in backend development
• Are strong in Java or similar languages (e.g., Kotlin, Go, Node.js)
• Have solid experience with Spring Boot or equivalent backend frameworks
• Have integrated with ERP or enterprise systems in production environments
• Are comfortable with both SQL (PostgreSQL) and NoSQL (MongoDB)
• Understand REST API development, authentication, Docker
• Have an entrepreneurial mindset — you're excited about ownership, ambiguity, and making decisions that shape the product and company
• Want more than just a job — you want to build, solve, and learn rapidly

What We Offer

• Competitive salary
• High degree of ownership and autonomy
• Ability to shape the tech and product direction from Day 1
• Transparent and fast decision-making culture
• A builder’s environment — solve real-world problems with real impact

Primary Skills: Database Systems (SQL), Python Flask/Fast API/Django frameworks specifically
Requirements:

• Highly proficient in fundamentals of Python web development frameworks like Flask, Django and Fast API
• Demonstrated experience in developing APIs using Python frameworks
• Should have deep knowledge in PostgreSQL, MS SQL Server and other SQL based Databases

Description:

For over 10 years, Zscaler has been disrupting and transforming the security industry. Our 100% purpose-built cloud platform delivers the entire gateway security stack as a service through 150 global data centers to securely connect users to their applications, regardless of device, location, or network in over 185 countries protecting over 3,900 companies and have detected 100 Million threats/day. 

We work in a fast-paced, dynamic and make it happen culture. Our people are some of the brightest and passionate in the industry that thrives on being the first to solve problems.  We are always looking to hire highly passionate, collaborative and humble people that want to make a difference.

About the role :

This is a senior staff backend engineer role in the engineering team that designs, implements and maintains our state of the art product IllusionBLACK. The team is responsible for designing and implementing secure, highly performant and maintainable product.

Responsibilities:

• Architect, develop and maintain high performance, fault tolerant and scalable cloud hosted service using NodeJS
• End to end responsibility to continuously create and monitor the services you build
• Help design reusable and clean API's for our frontend React app
• Guide team members with handling complex issues
• You will also be responsible for database schema design and development of migration scripts
• Experiment with new technologies and ideas and help shape our stack and processes

Requirement:

• 10+ years professional SW development experience
• All our production applications are built with either Typescript or Python. You must have a strong understanding of NodeJS express apps written in Typescript and ES6
• Must have good experience with Python
• Solid experience with databases is a must. We use and love Postgres here at Smokescreen
• You should be able to design a complex database SQL schema normalized to 3NF on the back of a napkin at 3am in the morning
• Deep understanding and working knowledge of Redis cache
• Experience with Solr or Elasticsearch is a must. We use Solr for our event analytics exclusively
• Experience with AWS, Azure or GCP is a plus. We have a large distributed application running on AWS
• Experience with Docker/Swarm is a plus
• Experience in some stream processing platforms like Kafka/Redis stream is a plus