Java Developer

About the company:

Aptroid Consulting (India) Pvt Ltd is a Web Development company focused on helping marketers transforms the customer experience increasing engagement and driving revenue, customer data to inform and drive it in every interaction in real time and with each individual behavior possibly.

About the Role:

We’re looking for a Senior Java & PHP Developer to join our backend engineering team that powers high-throughput, large-scale SaaS platforms — delivering billions of personalized communications and marketing events every month. You’ll work on mission-critical services that drive automation, data intelligence, and real-time campaign delivery across global clients. You’ll play a key role in designing scalable APIs, improving platform performance, and mentoring developers — while working closely with distributed teams aligned to US (EST) time zones. 

Key Responsibilities:

• Architect, design, and develop scalable backend services using Java (Spring Boot, Microservices) and PHP (Laravel/Symfony/custom frameworks).
• Lead system design and architecture reviews, ensuring clean code, maintainability, and adherence to best practices.
• Drive API integrations, microservices deployment, and modernization of legacy components.
• Collaborate with product managers, DevOps, and data engineering teams to deliver high impact features and performance improvements.
• Build, maintain, and monitor data-intensive systems that handle large message/event volumes with high reliability.
• Implement strong observability practices (metrics, tracing, alerting) and contribute to production incident reviews.
• Perform code reviews, mentor junior engineers, and advocate engineering excellence.
• Work collaboratively across global teams during EST business hours for sprint planning, releases, and incident response.

Required Qualifications:

• 6–9 years of professional backend development experience.
• Expert in Java (Spring Boot, REST APIs, concurrency, JVM tuning) and PHP (Laravel/Symfony, Composer, PSR standards)
• Strong experience with MySQL / PostgreSQL, Redis, and NoSQL systems. • Familiarity with AWS services (S3, Lambda, ECS/EKS, CloudWatch) and CI/CD pipelines (Jenkins, GitLab, GitHub Actions).
• Hands-on experience in scalable, distributed architectures and performance optimization.
• Strong debugging, profiling, and system performance tuning capabilities.
• Proven ability to deliver reliable, secure, and production-ready code in fast-paced agile environments.
• Excellent communication skills; able to coordinate with global teams across time zones.

Preferred Skills:

• Exposure to Kafka, RabbitMQ, or other event-driven systems.
• Familiarity with containerization (Docker) and orchestration (Kubernetes).
• Experience integrating with third-party APIs and external SDKs.
• Prior experience in AdTech, Martech, or high-volume SaaS platforms (similar to Sailthru/Zeta Global ecosystem).
• Knowledge of Python/Go for cross-service utilities or internal tooling is a plus.

What We Offer:

• Opportunity to work on high-scale enterprise systems with real-world impact.
• Exposure to global engineering practices and advanced cloud architectures.
• Collaborative culture with technical ownership and innovation freedom.
• Competitive compensation aligned with experience and global standards.

EDUCATION & EXPERIENCE :

- A professional degree in Computer Science from a reputable institution, backed by a consistent academic record.

- A knack for problem-solving, data structures, and algorithms.

- Proficiency in ElasticSearch.

- 3+ years of hands-on development experience, primarily in building products for large enterprises.

- Exceptional communication skills.

- Mastery in Java programming; familiarity with Python is a plus.- Experience with Spring Boot.

- Practical knowledge of one or more cloud-based technologies (e.g., ElasticSearch, Storm, Hazelcast, MongoDB, Ceph, Kafka) is highly desirable.

- Expertise in building concurrent and/or parallelized, highly performant scalable applications.

- A track record of identifying and addressing complex issues in scalable deployments.

- Exposure to Service-Oriented Architecture (SOA) and Test-Driven Development (TDD) is an added advantage.

ROLES & RESPONSIBILITIES :

- Dive deep into technical aspects (Analysis, Design & Implementation) as required.

- Take complete ownership of features within the product.

- Engage in debates and detailed discussions about functional and non-functional requirements with our Product Management team.

- Collaborate with the team to design solutions, seeking stakeholder input before implementation.

- Create essential artifacts such as functional specifications and detailed designs for your assigned features.

- Implement intricate features with an unwavering commitment to quality, following the Test- Driven Development (TDD) process.

- Maintain open lines of communication, promptly reporting risks and progress to your supervising manager.

- Share your expertise and mentor team members.

- Provide support by troubleshooting and creating Root Cause Analysis (RCA) for production issues, subsequently working on short-term and long-term solutions.

• Understand the fundamentals of Software Engineering, such as Data Structures, Algorithms, Design Patterns
• Ability to write Java applications using Spring, Springboot or any other microservices frameworks
• Experience in the development of REST applications, in Java or Kotlin
• Capable of writing effective APIs
• Solid knowledge of JVM fundamentals such as classloading, memory management, garbage collection
• Demonstrated experience in platform API design and development
• Knowledge on microservice and event-driven architecture
• Experience in working with version control frameworks such as Git (preferable), SVN
•      Experience with NoSQL databases (MongoDB or Cassandra) & Relational Databases
• Solid understanding of TDD & Agile principles such as CI / CD, with a proven track record of implementing solutions centred around those concepts
• Excellent communication, collaboration, reporting, analytical and problem solving skills

Role- Software Development Engineer-2

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.

About Amazon.com

“Many of the problems we face have no textbook solution, and so we-happily-invent new ones.” – Jeff Bezos

Amazon.com – a place where builders can build. We hire the world's brightest minds and offer them an environment in which they can invent and innovate to improve the experience for our customers. A Fortune 100 company based in Seattle, Washington, Amazon is the global leader in e-commerce. Amazon offers everything from books and electronics to apparel and diamond jewelry. We operate sites in Australia, Brazil, Canada, China, France, Germany, India, Italy, Japan, Mexico, Netherlands, Spain, United Kingdom and United States, and maintain dozens of fulfillment centers around the world which encompass more than 26 million square feet.

Technological innovation drives the growth of Amazon, offering our customers more selection, convenient shopping, and low prices. Amazon Web Services provides developers and small to large businesses access to the horizontally scalable state of the art cloud infrastructure like S3, EC2, AMI, CloudFront and SimpleDB, that powers Amazon.com. Developers can build any type of business on Amazon Web Services and scale their application with growing business needs.

We want you to help share and shape our mission to be Earth's most customer-centric company. Amazon's evolution from Web site to e-commerce partner to development platform is driven by the spirit of invention that is part of our DNA. We do this every day by inventing elegant and simple solutions to complex technical and business problems. We're making history and the good news is that we've only just begun.

About Amazon India

Amazon teams in India work on complex business challenges to innovate and create efficient solutions that enable various Amazon businesses, including Amazon websites across the world as well as support Payments, Transportation, and Digital products and services like the Kindle family of tablets, e-readers and the store. We are proud to have some of the finest talent and strong leaders with proven experience working to make Amazon the Earth’s most customer-centric company.

We made our foray into the Indian market with the launch of Junglee.com, enabling retailers in India to advertise their products to millions of Indian shoppers and drive targeted traffic to their stores. In June 2013, we launched http://www.amazon.in">www.amazon.in for shoppers in India. With http://www.amazon.in">www.amazon.in, we endeavor to give customers more of what they want – low prices, vast selection, fast and reliable delivery, and a trusted and convenient online shopping experience. In just over a year of launching our India operations, we have expanded our offering to over 18 million products across 36 departments and 100s of categories! Our philosophy of working backwards from the customers is what drives our growth and success.

We will continue to strive to become a trusted and meaningful sales and logistics channel for retailers of all sizes across India and a fast, reliable and convenient online shopping destination for consumers. For us, it is always “Day 1” and we are committed to aggressively invest over the long-term and relentlessly focus on raising the bar for customer experience in India.

Amazon India offers opportunities where you can dive right in, work with smart people on challenging problems and make an impact that contributes to the lives of millions. Join us so you can - Work Hard, Have Fun and Make History.

Roles & Responsibilities:

• Work as a Web Developer to create front end & backend of websites
• Play a key role in the design lifecycle, from brief through to design and release/implementation
• Should have good knowledge of HTML, CSS, REACT JS, NODE JS, POSTGRES, GIT, REST API.
• A good understanding of servers, hosting, domains, DNS
• Ensure all designs work across all browsers and on all devices
• Help to design elements of mobile apps
• Ensure all designs are produced to deliver a great user experience

Key Skills/Experience:

• A minimum of one year of experience in designing and developing websites and web apps
• Good working experience in React JS, Redux, JavaScript ES6, NodeJS, AJAX, HTML, CSS, etc
• Knowledge about REST API
• Who has worked on libraries such as Bootstrap, Material is.
• Experience with Unit testing, Git, GitHub, and other DevOps and CI/CD tool
• A strong portfolio that demonstrates a range of work and techniques
• A passion for strong web design that delivers a great user experience
• A good understanding of the latest web design trends