Software Developer

🚀 We’re Hiring: Senior Software Engineer – Backend | Remote | Full-time

Are you a backend engineering expert who thrives in high-growth startup environments?

Do you enjoy solving complex challenges with the latest technologies like Java 18+, Spring Boot 3+, and scalable microservices?

We’re looking for a Senior Software Engineer – Backend to help us build a world-class data science platform that powers cutting-edge AI solutions.

What You’ll Do:

🔹 Build and optimize scalable, secure backend systems

🔹 Collaborate with product owners & architects to shape business solutions

🔹 Deliver high-quality, production-ready code with best practices (unit testing, CI/CD, automation)

🔹 Work with modern tools like Kubernetes, Docker, NodeJS, React

🔹 Contribute to a high-performance engineering culture and drive innovation

What We’re Looking For:

✔️ 6+ years of experience with Java/Python, Spring Boot, REST APIs, microservices

✔️ Strong CS fundamentals, algorithms, and system design skills

✔️ Experience in secure web applications & scalable backend architectures

✔️ Knowledge of cloud (AWS/GCP/Azure), GitHub Actions, and Unix scripting

✔️ Startup mindset – fast learner, problem solver, impact-driven

🌍 Remote | High-growth environment | Global impact

Link to apply - https://tally.so/r/wv0lEA

Key Responsibilities:

1. Software Development:

• Design, implement, and optimise clean, scalable, and reliable code across [backend/frontend/full-stack] systems.
• Contribute to the development of micro services, APIs, or UI components as per the project requirements.

1. System Architecture:

• Collaborate and design and enhance system architecture.
• Analyse and identify opportunities for performance improvements and scalability.

1. Code Reviews and Mentorship:

• Conduct thorough code reviews to ensure code quality, maintainability, and adherence to best practices.
• Mentor and support junior developers, fostering a culture of learning and growth.

1. Agile Collaboration:

• Work within an Agile/Scrum framework, participating in sprint planning, daily stand-ups, and retrospectives.
• Collaborate with Carbon Science, Designer, and other stakeholders to translate requirements into technical solutions.

1. Problem-Solving:

• Investigate, troubleshoot, and resolve complex issues in production and development environments.
• Contribute to incident management and root cause analysis to improve system reliability.

1. Continuous Improvement:

• Stay up-to-date with emerging technologies and industry trends.
• Propose and implement improvements to existing codebases, tools, and development processes.

Qualifications:

Must-Have:

• Experience: 2–5 years of professional software development experience in [specify languages/tools, e.g., Java, Python, JavaScript, etc.].
• Education: Bachelor’s degree in Computer Science, Engineering, or equivalent experience.
• Technical Skills:
• Strong proficiency in [programming languages/frameworks/tools].
• Experience with cloud platforms like AWS, Azure, or GCP.
• Knowledge of version control tools (e.g., Git) and CI/CD pipelines.
• Understanding of data structures, algorithms, and system design principles.

Nice-to-Have:

• Experience with containerisation (e.g., Docker) and orchestration tools (e.g., Kubernetes).
• Knowledge of database technologies (SQL and NoSQL).

Soft Skills:

• Strong analytical and problem-solving skills.
• Excellent written and verbal communication skills.
• Ability to work in a fast-paced environment and manage multiple priorities effectively.

About PlanetSpark:

PlanetSpark is on a mission to build the next generation of confident speakers and creative writers

amongst kids and young adults. We are a Series B funded, global company impacting over 13 countries

through live 1:1 personalized classes on Public Speaking and Creative Writing through handpicked top

1% teachers. Our kids participate in gripping debates, create viral YouTube videos, start their own

podcast channels, perform stand-up comedy, write nail-biting mystery stories, and become confident

and fearless speakers.

PlanetSpark is on its journey to becoming the global leader in the large and untapped communication

skills segment by 2024. We are backed by some top VCs such as Prime Venture Partners and global

entrepreneurs such as Binny Bansal, Deep Kalra, Gokul Rajaram and Shirish Nandkarni.

Come, join a passionate team of over 500 young and energetic team members and 3500+

expert teachers on this roller coaster ride to build the most loved brand for kids who will move the

world!

Your Roles and Responsibilities:

Business Development is a critical aspect of our platform business.

1. Actively seeking out new sales opportunities through cold calling, networking and social

media. 2. Calling 65-70 leads everyday

3. Setting up meetings with potential clients (parents)

4. Generating Trial Classes - Pitch Parents to take PlanetSpark trial Classes

5. Negotiate/close deals and handle complaints or objections

6. Follow and achieve department’s sales goals on a monthly, quarterly and yearly basis (3L revenue

per month)

7. “Go the extra mile” to drive sales

Mission Statement

1. In your training of 1

st month, we shall actively probe you through the process using Training Decks,

Live Experiences, Re-Training Programs that aims to give you an overall Learning experience along

with you paid stipend along the journey.

2. We create career oritented BDT in this 1 month whose skill becomes unmatched across the sector.

3. You are required to use right sales strategy and accomplish 1 Lac of revenue in the training period,

hence making a way to achieve License to Sell (L-2-S)

4. You will be entitled for training stipend of INR. 21428.

In-office attendance of 90% is mandatory in 1month of training

5. Post 1L Revenue achievement, you will be entitled for below CTC

India Shift (10:30am onwards) – INR 6.6 LPA (4 LPA Fixed + 2.6 LPA Variable)

US/ Canada Shift (8:00 pm onwards) - INR 7.2 LPA (4.6 Fixed + 2.6 LPA Variable)

• You will be having an impact on our 1.7M users every day.
• You will be rolling out experiments and working closely with our product managers and design team to validate and build new features.
• Monitoring apps and fixing bugs for improving performance.
• Refactoring/Rewriting obsolete code to align with the new architecture.
• Design, build and maintain high performance, reusable, and reliable Kotlin code.
• Continuously discover, evaluate, and implement new technologies to maximize development efficiency Experience: 1- 5 yrs in android development

Expertise:

• Kotlin
• Live Data and other Android Jetpack components
• DI (Dagger/Hilt)
• Design patterns MVVM, MVI
• Multithreading (Coroutines)
• Offline Storage
• Remote data interaction via REST and JSON

Hands-on experience:

• Git
• CI/CD
• Third-party analytics like Amplitude, Clevertap, etc..
• Common third-party libraries and APIs like (Glide, retrofit...)
• Firebase products (FireStore/ RealTimeDB/ FCM..)
• Writing custom views
• Text-based UIs like notes, reader, etc..
• Publishing/Updating apps on Google Play and other stores (Huawei/Xiaomi...)

Good to have:

• Basic understanding of clean architecture.
• Simple data structure and algorithm understanding.
• Basic understanding of AWS services and products
• Strong design intuition and user empathy.
• Should be aware of future technologies in the Android ecosystem.
• You should be quick in understanding the hypothesis, and build the experiment and make it available to a user
• We prefer people who are highly experimental and willing to take risks.
• Experience in training or mentoring team members.

Do not apply if you are not:

• Ownership driven
• Curious in general
• Self-motivated
• Use to work in a chaotic environment
• Highly proactive
• Hate drinking and smoking will have a hard time here

About Mastercard

We are the global technology company behind the world’s fastest payments processing network.

We are a vehicle for commerce, a connection to financial systems for the previously excluded, a technology innovation lab, and the home of Priceless.

We ensure every employee has the opportunity to be a part of something bigger and to change lives.

We believe as our company grows, so should you.

We believe in connecting everyone to endless, priceless possibilities.

Overview Services and Data is helping to shape the future of data insights by leveraging billions of anonymized, aggregated transactions in a 10 petabyte date warehouse to help financial institutions, merchants, media, and governments manage their businesses more effectively.

Advanced Analytics is charged with servicing clients by centralizing and optimizing the world class analytical, modeling, software coding, data sourcing, product development, product management, econometrics, and associated delivery capabilities of the MasterCard Advisors organization.

It focuses on creating innovative technology solutions which leverage technology in the data science, artificial intelligence and analytics arenas; on enabling the field with industrialized, repeatable products and on researching and incubating emerging technology to determine how they might apply to our customers and facilitate positive outcomes.

What we are re looking for

• Are you motivated by developing new Analytical skills, leading to insights into issues and developing recommendations that add real value to clients?
• Have you managed the client independently and effectively?
• Do you want to play a key role in driving a world beyond cash?
• Leading the formulation of artificial intelligence and machine learning solution objectives. Working on technical requirements based on user need.
• Responsible for creating the framework of solutions that take data intensive and complex business challenges and provide easily consumed and automated outcomes
• Using unique visualization techniques, condenses large volumes of complex ideas into elegant and simple visual models
• Determine opportunities to exploit new data sources or leverage new outcomes from existing data sources, by applying new models and algorithms to create business value
• Influences a client's strategic decisions by using deep industry expertise and deploying innovative Deep Learning analytics solutions in the operational systems Leadership Skills
• Works closely with clients/internal stakeholders to understand their business needs and design a technical solution
• Proving viability of the solution through mechanisms like proof-of-concepts
• Thought Leadership in AI – Developing compelling audience-specific messages and tools. Capture and share best practices and insights internally and with partners and customers.
• Self-driven, energetic, creative with ability to work in global teams.
• Excellent communication skills and a wide knowledge base, to convince the Stakeholders on application of AI/ML
• Provide technical leadership to the team members in relevant topics on AI/ML
• Adaptable - Takes in stride and constantly attunes to the changing needs of a highly dynamic business
• Curious - our key contributors are always seeking to grow their knowledge, to gain new perspectives, and to find better ways forward by researching and showcasing latest AI tools, techniques and applications
• Tenacious - self-starters who will take ownership of projects and bring them to completion despite difficulties or setbacks
• Consulting and Project Management Experience preferred

Functional and Technical Skills

• Experience in building and implementing AI application in any of the two domains - Fraud, risk, marketing, finance, operations for Banks, Fintech, Ecommerce, merchants or retailers
• Has a deep understanding of business value industry requirements and advanced analytic models (statistical, operations research, computing process)
• Responsible for building applications using artificial intelligence/machine learning technology, applying latest industrial and academic developments, prefer Kaggle hackathon participant
• Expertise in deep learning frameworks for Production Systems like Tensorflow, Keras (for RPD and neural net architecture evaluation), PyTorch and Xgboost, Caffe, Theono
• Proficient in Deep Learning algorithm techniques like Random Forest, GBM, KNN, SVM, Bayesian, Text Mining techniques, Multilayer Perceptron, Neural Networks – Feedforward, CNN, LSTM’s GRU’s.
• Optimization techniques – Activity regularization (L1 and L2), Adam, Adagrad, Adadelta concepts; Cost Functions in Neural Nets – Contrastive Loss, Hinge Loss, Binary Cross entropy, Categorical Cross entropy; developed applications in KRR, NLP, Speech and Image processing
• Expertise in classical Machine Learning algorithms like Logistic Regression, Decision trees, Clustering (K-means, Hierarchical and Self-organizing Maps), TSNE, PCA, Bayesian models, Time Series ARIMA/ARMA, Recommender Systems - Collaborative Filtering, FPMC, FISM, Fossil etc
• Extensive experience in statistical tools and programming environments like Python, R, SAS, SQL
• Experience with BIG DATA platforms - Hadoop, Hive, Spark, GPU Clusters for deep learning

Qualifications

• Minimum Graduate degree in Mathematics/Computer Science/Engineering