Senior Software Engineer at LeagueSX · Delhi, Gurugram, Noida · 3 - 6 years · ₹5L - ₹8L / yr · Raised funding · Posted 30 May 2018

About LeagueSX
About
LeagueSX brings football fans together using fantasy football. We are a new age fans engagement company which offers unique custom fantasy football tournaments among football fans.
We are bringing fans closer to the "Beautiful game", one game at a time. Our approach is inspired by Jurgen Klopp - "We believe in a working philosophy that is very emotional, very fast and very strong. We must work at full throttle and take it to the limit every single day"
Connect with the team
Company social profiles
Similar jobs (10)
Strong Python Developer profile with robust AWS exposure
2
Mandatory (Experience 1): Must have 7+ years of hands-on software development experience with at least the recent 4+ years in Python and strong hands on knowledge of AWS
3
Mandatory (Tech skill 1): Must have strong working knowledge of Python.
4
Mandatory (Tech skill 2): Must have good understanding of AWS services including EC2, S3, Lambda, IAM, CloudWatch, and ECS or ECR
5
Mandatory (Tech skill 3): Must be able to write and understand REST APIs
6
Mandatory (Tech skill 4): Experience designing and architecting scalable backend applications/services on AWS, including making decisions around application architecture, APIs, databases, and AWS services
7
Mandatory (Tech skill 5): Must be comfortable with version control tools such as Git, GitHub, Bitbucket, or GitLab
8
Mandatory (Tech skill 6): Must have good understanding of databases such as PostgreSQL, MySQL, or DynamoDB
9
Mandatory (Tech skill 7): Must have familiarity with Linux commands and shell scripting
10
Mandatory (Skill 1): Must have good debugging and problem-solving skills, with the ability to read existing code and make changes independently with light guidance
11
Mandatory (Skill 2): Must have strong communication skills
12
Preferred (Tech skill 2): Experience with AWS CodeCommit, and exposure to AWS CodeBuild, CodeDeploy, CodePipeline, GitHub Actions, Jenkins, or similar CI/CD tools
13
Preferred (Tech skill 3): Basic understanding of CI/CD pipelines
14
Preferred (Tech skill 4): Experience with Docker or container-based applications
15
Preferred (Tech skill 5): Basic knowledge of infrastructure-as-code tools such as Terraform or AWS CloudFormation

Full Stack Developer responsible for managing back-end services and the interchange of data between the server and the users.
Your primary focus will be the development of all server side logic, definition and maintenance of the central database, and ensuring high performance and responsiveness to requests from the front-end. You will also be responsible for integrating the frontend elements built by your co-workers into the application. Therefore, a basic understanding of frontend technologies is necessary as well.
We are looking to recruit a candidate for a role that will require:
- Create and consume restful APIs
- Design, develop, and maintain internal and external applications
- Build efficient, testable, and reusable modules
- Write high quality, structured application/interface code and documentation
- Identify solutions through research and collaboration that resolves the root of problems as they arise
- Define functional and technical requirements for application software to develop skills and knowledge
- Troubleshoot, test and maintain the core product software and databases to ensure strong optimization and functionality
- Contribute in all phases of the development lifecycle
Requirement
∙ Proficient in Node.JS and ReactJS development stack
∙ 2+ years’ experience designing, querying, and updating databases in MySQL/nosql
∙ Basic understanding of web technologies including HTML, CSS, JavaScript, AJAX etc.
∙ Passion for best design and coding practices and a desire to develop new bold ideas
∙ Good to have knowledge of AWS, Redis, ElasticSearch
Why This Role Matters
- We are looking for a Staff Engineer to lead the technical direction and hands-on development of our next-generation, agentic AI-first marketing platforms. This is a high-impact role to architect, build, and ship products that change how marketers interact with data, plan campaigns, and make decisions.
What You'll Do
- Build Gen-AI native products: Architect, build, and ship platforms powered by LLMs, agents, and predictive AI
- Stay hands-on: Design systems, write code, debug, and drive product excellence
- Lead with depth: Mentor a high-caliber team of full stack engineers.
- Speed to market: Rapidly ship and iterate on MVPs to maximize learning and feedback.
- Own the full stack: From backend data pipelines to intuitive UIs—from Airflow to React - from BigQuery to embeddings.
- Scale what works: Ensure scalability, security, and performance in multi-tenant, cloud-native environments (GCP).
- Collaborate deeply: Work closely with product, growth, and leadership to align tech with business priorities.
What You Bring
- 8+ years of experience building and scaling full-stack, data-driven products
- Proficiency in backend (Node.js, Python) and frontend (React), with solid GCP experience
- Strong grasp of data pipelines, analytics, and real-time data processing
- Familiarity with Gen-AI frameworks (LangChain, LlamaIndex, OpenAI APIs, vector databases)
- Proven architectural leadership and technical ownership
- Product mindset with a bias for execution and iteration
Our Tech Stack
- Cloud: Google Cloud Platform
- Backend: Node.js, Python, Airflow
- Data: BigQuery, Cloud SQL
- AI/ML: TensorFlow, OpenAI APIs, custom agents
- Frontend: React.js
What You Get
- Meaningful equity in a high-growth startup
- The chance to build global products from India
- A culture that values clarity, ownership, learning, humility, and candor
- A rare opportunity to build with Gen-AI from the ground up
Who You Are
- You’re initiative-driven, not interruption-driven.
- You code because you love building things that matter.
- You enjoy ambiguity and solve problems from first principles.
- You believe true leadership is contextual, hands-on, and grounded.
- You’re here to build — not just maintain.
- You care deeply about seeing your products empower real users, run reliably at scale, and adapt intelligently with minimal manual effort.
- You know that elegant code is just 30% of the job — the real craft lies in the engineering rigour, edge-case handling, and production resilience that make great products truly dependable.
Key Responsibilities:
- Design, develop, implement and evolve our backend platform (whose APIs and functionality provided are used by other game services, apps, and admin back office)
- Develop highly efficient, robust, quality code for applications and services
- Maintain clean coding practices
- Enhancing and supporting existing functions, some of which are 24/7
- Supporting product owners as required
- Providing support to the testing team during testing phases of the projects
- Contributing to solution proposals as required
- Creating work effort estimates as required
- Mentor, train on the best practices junior software associates and other team members.
Key Competencies (Functional):
- Clean coding practices
- Knowledge of scalable web architectures is required
- A solid understanding of Linux, JVM is required
- Knowledge of DevOps, Docker, Build Pipelines is good to have
- Knowledge of git workflow is essential
- Working with SOA, Microservices.
Any specific knowledge / experience:
- Functional programming experience with immubtable datastructures is required
- Knowledge of Erlang / Elixir is a plus.
- Knowledge of Clojure is perfect
We are looking for a Full Stack Developer to produce scalable software solutions. You'll be part of a cross-functional team that's responsible for the full software development life cycle, from conception to deployment. As a Full Stack Developer, you should be comfortable around front-end and back-end coding languages, development frameworks and third-party libraries. You should also be a team player with a knack for visual design and utility. Too familiar with Agile methodologies.
Responsibilities
- Design client-side and server-side architecture
- Build the front-end of applications through appealing visual design
- Develop and manage well-functioning databases and applications
- Write effective APIs
- Test software to ensure responsiveness and efficiency
- Troubleshoot, debug and upgrade software
- Create security and data protection settings
- Build features and applications with a mobile responsive design
- Write technical documentation
Requirements
- Proven experience as a Full Stack Developer or similar role
- Experience developing desktop and mobile applications
- Familiarity with common stacks like LAMP Stack and Mean Stack...
- Knowledge of multiple front-end languages and libraries (e.g. HTML/ CSS, JavaScript, XML, jQuery)
- Knowledge of multiple back-end languages (e.g. PHP, Python) and JavaScript frameworks (e.g. Angular, React, Node.js)
- Familiarity with databases (e.g. MySQL, MongoDB), web servers (e.g. Apache) and UI/UX design
- Excellent communication and teamwork skills
- Great attention to detail
- Organizational skills
- An analytical mind
- Degree in Computer Science, Statistics or relevant field
Dear Candidate,
I came across your candidature and want to discuss on a suitable role with us.Please find below JD and do reply with updated resume. Software Development Engineer – SDE 2. Bengaluru/Hyderabad/Gurgaon/Chennai/Pune As a Software Development Engineer at Amazon, you have industry-leading technical abilities and demonstrate breadth and depth of knowledge. You build software to deliver business impact, making smart technology choices. You work in a team and drive things forward. Top Skills You write high quality, maintainable, and robust code, often in Java or C++ or C# You recognize and adopt best practices in software engineering: design, testing, version control, documentation, build, deployment, and operations. You have experience building scalable software systems that are high-performance, highly-available, highly transactional, low latency and massively distributed. Roles & Responsibilities You solve problems at their root, stepping back to understand the broader context. You develop pragmatic solutions and build flexible systems that balance engineering complexity and timely delivery, creating business impact. You understand a broad range of data structures and algorithms and apply them to deliver high-performing applications. You recognize and use design patterns to solve business problems. You understand how operating systems work, perform and scale. You continually align your work with Amazon’s business objectives and seek to deliver business value. You collaborate to ensure that decisions are based on the merit of the proposal, not the proposer. You proactively support knowledge-sharing and build good working relationships within the team and with others in Amazon. You communicate clearly with your team and with other groups and listen effectively. Skills & Experience Bachelors or Masters in Computer Science or relevant technical field. Experience in software development and full product life-cycle. Excellent programming skills in any object-oriented programming languages - preferably Java, C/C++/C#, Perl, Python, or Ruby. Strong knowledge of data structures, algorithms, and designing for performance, scalability, and availability. Proficiency in SQL and data modeling.
Day to Day Responsibilities:
1. Develop Django based RESTful APIs and WebSockets
2. Manage and mentor the junior and intern developers to deliver the project requirements in the given timeline
3. Carry out Database Modelling and Designing
4. Make DFDs, ER diagrams, etc.
5. Integrate Python APIs/endpoints to other Python outputs (JSON, etc.)
6. Work with clean code writing practices and structure the code for collaborated development
7. Analyze different use-cases and coming up with creative solutions
8. Build reusable components and back-end libraries for future use
9. Participate in daily scrums
10. Work on responsive web development
11. Work with the team to manage, optimize, and customize multiple web applications
12. Learn and work using new technologies
13. Work on being involved and participate in the overall application lifecycle
14. Work with a focus on coding and debugging
15. Collaborate with front-end developers
Design
· Design a Service Platform that will serve a large scale of users
· Prepare design based on requirements and direction provided by product manager
· Research and consult with SMEs to ensure the design is most suitable to meet the requirements
· Present and explain design decisions and gain consensus within in the team
· Propose UI/UX design decisions that align with requirements and expectations
· Create any support documentation required for future design updates and validation
Develop
· Document development plan to implement requirements (Senior)
· Manage development project tasks and schedule (Senior)
· Establish development lifecycle model to suit the needs of the project (Senior)
· Build & configure the base platform based on Open Source solution
· Manage sprint cycle releases and track development progress
Quality
· Perform Quality Assurance before releasing new features
· Conduct Integration testing to ensure platform is stable
· Track any issues and ensure that defects are resolved in the next release
· Demonstrate new features at the end of the sprint
· Report the development progress weekly including any issues identified
Standards
· Use the following standards, methods and techniques
o SDLC including Waterfall, Agile & DevOps
o Project Management & Requirements Management
o Coding standards, Code review process & Code management
o Build, Test & Release Processes
o CI/CD Frameworks
Technology
· Use the following frameworks, technology & tools
o Java, PYTHON, Jquery, React, ,
o API, REST, DJango
o Docker,
o Git, Jenkins
o Linux
o MySQL,
Facilitation and Business Analysis skills.
Estimation and Project Planning skills for enterprise level applications.
Excellent communication and technical leadership skills.
Minimum 3+ Years of hands-on experience in developing Python Applications.
Excellent knowledge of Python and experience in or in-depth understanding of core Python
Knowledge in Lists, Tuples, and Dictionaries
Excellent knowledge of Python Constructor- Parameterized and Non-Parameterized
Must have experience in core python concepts about data structure, OOPS concepts, XML parsing, XML to JSON, optimizations
Developers should have developed Web Based applications., back end, SQL
Agile and scrum methodology
Should not be test automation, Application development frame work
Excellent Communication Skill
Good to Have
Django/ Flask
Strong Hands-on experience in HTML, CSS, DTL(Django Template Language), SASS.
knowledge of SQL










