Senior Software Engineer -Backend (Python,C++)

Profile: AWS Data Engineer

Mode- Hybrid

Experience- 5+7 years

Locations - Bengaluru, Pune, Chennai, Mumbai, Gurugram

Roles and Responsibilities

• Design and maintain ETL pipelines using AWS Glue and Python/PySpark
• Optimize SQL queries for Redshift and Athena
• Develop Lambda functions for serverless data processing
• Configure AWS DMS for database migration and replication
• Implement infrastructure as code with CloudFormation
• Build optimized data models for performance
• Manage RDS databases and AWS service integrations
• Troubleshoot and improve data processing efficiency
• Gather requirements from business stakeholders
• Implement data quality checks and validation
• Document data pipelines and architecture
• Monitor workflows and implement alerting
• Keep current with AWS services and best practices

Required Technical Expertise:

• Python/PySpark for data processing
• AWS Glue for ETL operations
• Redshift and Athena for data querying
• AWS Lambda and serverless architecture
• AWS DMS and RDS management
• CloudFormation for infrastructure
• SQL optimization and performance tuning

Job Summary: 

We are seeking a highly skilled and experienced Backend Lead to design, develop, and maintain scalable, reliable, and high-performance backend solutions for our multi-tenant SaaS products. The ideal candidate will have a deep understanding of distributed systems, microservices, and cloud-based architectures, with a proven track record in handling production issues at scale. You will collaborate closely with the AI Lead and Frontend Lead to ensure seamless integration of backend services, AI/ML pipelines, and front-end functionalities, thereby

delivering a robust, secure, and feature-rich experience to our customers.

Key Responsibilities:

1. System Architecture & Design

• Define and implement the overall backend architecture for multi-tenant SaaS applications, ensuring scalability, high availability, security, and compliance.
• Design microservices and RESTful/GraphQL APIs and Websockets in alignment with front-end and AI requirements.
• Establish design patterns and best practices for code modularity, performance optimization, and scalability.
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2. Scalability & Performance

• Identify performance bottlenecks and oversee optimization strategies (caching, load balancing, message queues, etc.).
• Implement and maintain monitoring/observability solutions (e.g., Prometheus, Grafana, Loki, ELK Stack) to ensure real-time system health insights and rapid incident response.
• Establish performance baselines, conduct stress tests, and implement disaster recovery strategies.

3. Production Stability & Issue Resolution

• Proactively monitor production environments, anticipating potential failures and bottlenecks.
• Triage, diagnose, and resolve production incidents with minimal downtime, using robust logging, tracing, and on-call rotation strategies.
• Drive root cause analysis and post-mortems for production incidents, implementing preventative measures.
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4. Collaboration & Cross-Functional Coordination

• Work closely with the AI team to integrate MLOps pipelines, ensuring smooth data flow and secure model deployment.
• Collaborate with the Frontend team to provide well-defined API contracts, enabling efficient UI/UX development.
• Partner with DevOps to define CI/CD pipelines, container orchestration (Docker, Kubernetes), and infrastructure-as-code (Terraform, CloudFormation) practices.

5. Team Leadership & Mentorship

• Lead and mentor a team of backend developers, setting clear goals and providing guidance on best practices.
• Perform code reviews to ensure high code quality, maintainability, and adherence to design standards.
• Foster a culture of continuous learning, encouraging the adoption of new technologies, tools, and methodologies.

6. Security & Compliance

• Implement secure coding practices and follow industry standards (e.g., OWASP Top 10).
• Work with compliance teams to ensure data privacy and regulatory requirements (HIPAA) are met.
• Oversee authentication/authorization frameworks (OAuth, JWT, etc.) and data encryption at rest and in transit(Encryption, SSL/TLS).

7. Documentation

• Maintain comprehensive technical documentation, including architecture diagrams, APIs, database schemas, and operational runbooks.
• Facilitate knowledge sharing sessions and handovers to ensure smooth onboarding of new team members.

Qualifications

Education:

Bachelor’s or master's degree in computer science,engineering, or a related field.

Experience:

• 8+ years of experience in backend or full-stack development, with 3+ years in a technical lead or architect role.
• Demonstrated history of leading and delivering large-scale, distributed systems in production environments.

Technical Expertise:

• Languages & Frameworks: Proficiency in modern backend languages (e.g., Python) and associated frameworks (Django/FastAPI, etc.).
• Database Systems: Strong knowledge of both SQL (MySQL, PostgreSQL) and NoSQL (MongoDB, Cassandra) databases, including data modeling and query optimization.
• Microservices & Architecture: Hands-on experience with microservices,containerization (Docker, Kubernetes), and service mesh architectures.
• Cloud Platforms: Experience with cloud providers like AWS and Azure for deployment, scaling, and monitoring.
• CI/CD & DevOps: Familiarity with CI/CD pipelines, Git workflows,infrastructure-as-code, and automated testing.
• Monitoring & Observability: Proficiency with tools like Prometheus, Grafana, ELK Stack, Loki for real-time monitoring and log analysis.

Soft Skills:

• Leadership: Ability to lead teams, manage conflict, and drive a vision for the backend architecture.
• Communication: Strong written and verbal communication skills to coordinate with cross-functional teams (AI, Frontend, QA, Product).
• Problem-Solving: Analytical mindset for troubleshooting complex issues in high- pressure environments.
• Collaboration: Demonstrated capability to work seamlessly across multiple teams and stakeholders.

• 3+ years of experience in the Development in JAVA technology.
• AWS or cloud Experience
• Strong Java Basics
• SpringBoot or Spring MVC
• Hands on experience on Relationl Databases (SQL query or Hibernate) + Mongo (JSON parsing)
• Proficient in REST API development
• Messaging Queue (RabitMQ or Kafka)
• Microservices
• Any Caching Mechanism
• Good at problem-solving

Good to Have Skills:

• 3+ years of experience in using Java/J2EE tech stacks
• Good understanding of data structures and algorithms.
• Excellent analytical and problem solving skills.
• Ability to work in a fast paced internet start-up environment.
• Experience in technical mentorship/coaching is highly desirable.
• Understanding of AI/ML algorithms is a plus.

Position: Senior Backend Developer (NodeJS)

Experience: 5+ Years

Location: Bengaluru

CodeCraft Technologies multi-award-winning creative engineering company offering design and technology solutions on mobile, web and cloud platforms.

We are looking for an enthusiastic and self-driven Backend Engineer to join our team.

Roles and Responsibilities:

● Develop high-quality software design and architecture

● Identify, prioritize and execute tasks in the software development life cycle.

● Develop tools and applications by producing clean, efficient code

● Automate tasks through appropriate tools and scripting

● Review and debug code

● Perform validation and verification testing

● Collaborate with cross-functional teams to fix and improve products

● Document development phases and monitor systems

● Ensure software is up-to-date with the latest technologies

Desired Profile:

● NodeJS [Typescript]

● MongoDB [NoSQL DB]

● MySQL, PostgreSQL

● AWS - S3, Lambda, API Gateway, Cloud Watch, ECR, ECS, Fargate, SQS / SNS

● Terraform, Kubernetes, Docker

● Good Understanding of Serverless Architecture

● Proven experience as a Senior Software Engineer

● Extensive experience in software development, scripting and project management

● Experience using system monitoring tools (e.g. New Relic) and automated testing frameworks

● Familiarity with various operating systems (Linux, Mac OS, Windows)

● Analytical mind with problem-solving aptitude

● Ability to work independently

Good to Have:

● Actively contribute to relevant open-source projects, demonstrating a commitment to community collaboration and continuous learning.

● Share knowledge and insights gained from open-source contributions with the development team

● AWS Solutions Architect Professional Certification

● AWS DevOps Professional Certification

● Multi-Cloud/ hybrid cloud experience

● Experience in building CI/CD pipelines using AWS services

Responsibilities

1. Writing clean, high-quality, high-performance, maintainable code
2. Develop and support software including applications, database integration, interfaces, and new functionality enhancements
3. Coordinate cross-functionally to insure project meets business objectives and compliance standards
4. Support test and deployment of new products and features
5. Participate in code reviews

Skills & Qualifications

• 4-12 years of experience in Java Development.

• Excellent verbal and written English communication is a must. You may have to interact with clients directly.

• Technology agnostic approach is a must. Ready to adopt new technology and a faster learning curve.

• Writing scalable, maintainable and reusable code.

• Keen interest in SAAS based products and mobile applications.

• Experience working with Distributed Systems

• Java, Spring Boot, Microservices, API Design Experience with Event-Driven Architecture, Multithreading

• Kafka iOS Experience with Event Sourcing Reactive and Functional

• Programming Strong understanding of best practices for creating/working with Microservices

• Experience implementing Message Brokers and Messaging subsystems(experience working with Kafka a strong plus)

• Be open-minded, creative, and self-critical; be collaborative and communicative

• Have experience with and curiosity about agile and lean philosophies

• Experience working with small teams to ship products to market

• Have experience developing full-service consumer, employee and business applications

• Language agnostic and experienced polyglot Passion for Working Software and SOLID principles

• Experience with designing and refactoring complex systems

• Experience with Test-Driven Development (TDD) Interest in working in a pair-programming environment Deep understanding of design patterns and applying them in production environments

• Passion for enabling team members

• Java 8 or Java 11. Both are LTS. The project will be on Java11

• Spring Boot

• Git

• SQL

• AWS and AWS Aurora

• Microservices

• Multithreading

Perks

• Flexible time schedule.
• Work from home or work from anywhere.
• Health insurance.
• Team building activities.
• Training and conference tickets.

• Writing reusable, testable, and efficient code
• Design and implementation of low-latency, high-availability, and performant applications
• Analysis, Automate and backtest the existing strategies
• Employing statistical applications to visualize and/or transform the distribution or dispersion profile of individual signals and support the mathematical formulation of multiple signal algorithms to rank securities for investment.

• Candidates should have strong coding skills in Python (NumPy, Pandas, matplotlib, Zipline) /Django/Java script etc.
• Basic understanding of front-end technologies, such as HTML5, and CSS3
• Must have Database knowledge like Open source, PostgreSQL, MySQL/SQ
  Learnability, teamwork and flexibility are important traits we look for.

Responsibilities

• Writing scalable, robust,, testable, efficient, and easily maintainable code
• Translating software requirements into stable, working, high performance software
• Playing a key role in architectural and design decisions, building toward an efficient micro services distributed architecture

Skills

• Strong knowledge of Goprogramming language, paradigms, constructs, and idioms
• Knowledge of Goroutine and channel patterns
• Experience with the full suite of Goframeworks and tools, including:
• Dependency management tools such as Godep, Sltr, etc.
• Go’s templating language
• Go’s code generation tools, such as Stringer
• Popular Goweb frameworks, such as Revel,Gin
• Router packages, such as Gorilla Mux
• Ability to write clean and effective Godoc comments
• Familiarity with code versioning tools (such as Git, SVN, and Mercurial)
• Good Written and Verbal communications.