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Polina, Full-stack Software Engineer (Node + React)

Belarus
Last Updated: 4 Jul 2023

- 3+ years of experience in the IT industry - Core technology stack is AWS, Node.js, Python - Actively working with serverless architecture AWS (Lambda, Cognito, VPC, Security Group, EC2, RDS, API Gateway, CloudFormation, SES, SNS, S3, Amazon Timestream, IAM, LightSail) - Intermediate English - Available ASAP

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Denis, Senior Full-Stack Engineer

Ukraine
Last Updated: 4 Jul 2023

- 5+ years of commercial software development experience; - Solid experience in building rich web applications (monolith and MSA); - Deep skills with frameworks and libraries such as React, and NestJs; - Good abilities working with Node.js and Express; - Familiar working with Kubernetes, Docker, and Terraform; - Experience with AWS ((S3, EC2, AWS SQS/SNS/SES, AWS DynamoDB, IAM, Cloudwatch); - Most of the development experience was gained in projects related to business corporate networks, coaching platforms, insurance, fintech, leasing, event-management systems, and healthcare; - Upper-Intermediate English; - Available: ASAP

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Max R., .NET Software Engineer

Ukraine
Last Updated: 4 Jul 2023

- 5+ years of commercial experience with C# and .NET - Experience with .NET Core and .NET Framework - Experience with MS SQL Server, MongoDB, CosmosDB, RabbitMQ, Redis - Worked with Stripe, AWS (SNS, SQS, S3, EFS, Lambda, EC2), Azure (Storage, Queues), Hangfire - Knowledge of OOP and SOLID principles - Basics of HTML, CSS, Javascript, JQuery - Familiar with Docker and Kubernetes - Intermediate English

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Max R., Senior .NET Engineer

Kharkiv, Ukraine
Last Updated: 4 Jul 2023

- 5+ years of commercial experience with C# and .NET - Experience with .NET Core and .NET Framework - Experience with MS SQL Server, MongoDB, Cosmos DB - RabbitMQ, Redis - Worked with Stripe, AWS (SNS, SQS, S3, EFS, Lambda, EC2), Azure(Storage, Queues), Hangfire - Knowledge of OOP and SOLID principles - Basics of HTML, CSS, Javascript, JQuery - Familiar with Docker and Kubernetes; - Intermediate English - Available ASAP

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Roman B., PHP Software Engineer (Laravel, Symfony, Yii)

Zaporizhia, Ukraine
Last Updated: 4 Jul 2023

- Software Engineer with excellent skills, knowledge, and work experience in web, mobile, and desktop development - Has over 6 years of experience in developing sites and applications using modern web technologies, solutions, and best practices - Major specialization is building applications based on both Javascript/ES6+ and PHP: backend frameworks Laravel, Symfony, NodeJS, Express/Nuxt/Next/Nest.js/RestAPI along with front-end JS frameworks such as ReactJS + Redux, React Native, VueJS, Angular 2+. - Rich experience in deploying and maintaining using such technologies as CI/CD, Docker, Apache/Nginx, CDN + force SSL Cloudflare, AWS(EC2, S3, Route53, RDS, Lambda, Elastic-cache, SES, SNS, SQS, Amplify CI/CD, IAM), GCP (Firestore, IAM, Cloud Run, Cloud Functions, App Engine, Real-time Database, Identity and so) - Strong skills and knowledge in DB design and management using such DBMS as MySQL, PostgreSQL, DynamoDB, SQLite, MongoDB, writing complex SQL-queries with sub-queries, transactions, cursors, creating stored procedures, triggers, sequences, pg pub/sub, etc. - Worked on over 40+ projects in various roles, like Team/Teach Lead, Architect, FE/BE Developer, with different aims and misc. tech stack - Intermediate+ English - Available from 01.07.2022

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Table of Contents

Soft skills of a AWS SNS Developer

AWS SNS (Simple Notification Service) is a powerful service provided by Amazon Web Services for sending notifications to various endpoints such as email, SMS, mobile push, and more. As an AWS SNS Developer, having strong technical skills is crucial, but equally important are the soft skills that enable effective communication, collaboration, and problem-solving. Here are the soft skills required for AWS SNS Developers at different levels:

Junior

  • Effective Communication: Ability to clearly articulate ideas and communicate with team members and stakeholders.
  • Attention to Detail: Paying close attention to the specifics while configuring and managing SNS notifications.
  • Time Management: Efficiently managing time to meet project deadlines and deliver quality results.
  • Teamwork: Collaborating with colleagues to ensure smooth integration of SNS notifications into applications.
  • Adaptability: Being flexible and open to learning new technologies and frameworks related to AWS SNS.

Middle

  • Problem-Solving: Analyzing complex issues and finding effective solutions related to AWS SNS.
  • Leadership: Guiding and mentoring junior developers in implementing SNS notifications.
  • Client Interaction: Interacting with clients to understand their requirements and provide technical guidance.
  • Project Management: Possessing the skills to manage SNS-related projects and ensure timely delivery.
  • Critical Thinking: Evaluating different scenarios and making informed decisions for SNS implementation.
  • Collaboration: Working closely with cross-functional teams to integrate SNS notifications seamlessly.
  • Documentation: Creating clear and concise technical documentation for SNS configurations and setups.

Senior

  • Strategic Thinking: Developing long-term strategies for utilizing AWS SNS to enhance business processes.
  • Technical Leadership: Leading the SNS development team, providing technical guidance, and ensuring best practices.
  • Conflict Resolution: Resolving conflicts and challenges that arise during SNS implementation.
  • Innovation: Identifying and implementing innovative approaches to optimize SNS notifications.
  • Client Relationship Management: Building and maintaining strong relationships with clients to understand their evolving needs.
  • Presentation Skills: Effectively presenting SNS-related solutions to technical and non-technical stakeholders.
  • Continuous Learning: Staying updated with the latest AWS SNS features and incorporating them into projects.

Expert/Team Lead

  • Strategic Planning: Developing a comprehensive roadmap for SNS integration across multiple projects.
  • Business Acumen: Understanding the impact of SNS on business objectives and aligning development efforts accordingly.
  • Team Management: Mentoring and managing a team of developers, ensuring high-quality SNS implementations.
  • Decision-Making: Making critical decisions related to architecture, scalability, and security of SNS solutions.
  • Industry Knowledge: Keeping up-to-date with industry trends and best practices related to AWS SNS.
  • Vendor Relations: Managing relationships with AWS and other technology vendors to leverage their resources.
  • Risk Management: Identifying and mitigating potential risks associated with SNS implementation.
  • Project Execution: Overseeing the successful execution of SNS projects, meeting client expectations and business requirements.
  • Continuous Improvement: Driving continuous improvement initiatives to enhance SNS processes and efficiency.
  • Empathy: Understanding the needs and challenges of team members and fostering a positive work environment.
  • Strategic Partnerships: Building strategic partnerships with other teams or organizations to enhance SNS capabilities.

How and where is AWS SNS used?

Case NameCase Description
Real-time NotificationsAWS SNS Development enables developers to send real-time notifications to users across various channels such as email, SMS, push notifications, and more. This is particularly useful for applications that require instant communication with users, such as ride-sharing apps notifying users about their driver’s location or e-commerce apps sending order updates.
Application MonitoringBy integrating AWS SNS Development with monitoring tools, developers can receive notifications about critical events and issues in real-time. This allows them to proactively address any performance or availability concerns, ensuring the smooth operation of their applications. For example, SNS can be used to send alerts when server resources reach critical thresholds or when a system component fails.
Alerts and AlarmsAWS SNS Development can be utilized to send alerts and alarms to administrators or operations teams when specific conditions or events occur. This can include system failures, security breaches, or abnormal activity. By promptly notifying the relevant stakeholders, teams can quickly respond to incidents and minimize any potential impact.
Mobile Push NotificationsWith AWS SNS Development, developers can easily send push notifications to mobile devices, keeping users engaged and informed. This is essential for mobile apps that require timely updates, such as social media apps notifying users about new messages or news apps delivering breaking news alerts.
Multi-Channel MessagingAWS SNS Development allows developers to send messages to multiple channels simultaneously, ensuring broad reach and effective communication. For example, an event management platform can utilize SNS to send event reminders via email, SMS, and push notifications, catering to different user preferences and increasing engagement.
Internet of Things (IoT) NotificationsAWS SNS Development seamlessly integrates with IoT platforms, enabling the delivery of notifications to connected devices. This is valuable in scenarios where IoT devices need to send updates or alerts to users or other systems. For instance, a smart home system can leverage SNS to send notifications to homeowners about security breaches or unusual activity.
High-Throughput MessagingAWS SNS Development is designed to handle high-throughput messaging requirements, making it suitable for applications that demand rapid and scalable communication. Whether it’s sending time-sensitive information to a large number of users or broadcasting messages to a massive subscriber base, SNS can reliably deliver messages with low latency and high throughput.
Distributed SystemsIn distributed systems, AWS SNS Development can facilitate event-driven architectures by allowing different components and services to communicate and react to events in near real-time. By integrating SNS into the system, developers can decouple the components, making them more scalable, resilient, and flexible. This enables building robust and loosely coupled architectures.

Cases when AWS SNS does not work

  1. AWS SNS does not work when there is an issue with the AWS account. This could be due to account suspension, expired credentials, or insufficient permissions. In such cases, it is important to check the account status and ensure that the necessary credentials and permissions are in place.
  2. Inadequate network connectivity can also cause AWS SNS to not function properly. If there are network issues, such as firewall restrictions, DNS resolution problems, or internet connectivity failures, it can affect the ability of AWS SNS to send and receive messages. Troubleshooting the network connectivity and resolving any issues can help restore the functionality of AWS SNS.
  3. Incorrect configuration of AWS SNS can lead to its failure. This includes misconfigured topic policies, incorrect subscription settings, or improper message attributes. Verifying the configuration settings and ensuring they align with the intended use case can resolve such issues.
  4. If there are insufficient resources in the AWS region where SNS is deployed, it may encounter operational issues. This can occur when there is high message throughput, exceeding the capacity of the SNS service in that specific region. Monitoring the service limits and considering scaling options, such as using multiple SNS topics or regions, can help mitigate this problem.
  5. When using AWS SNS with other AWS services, compatibility issues can arise. For example, if the target service does not support the message format or protocol used by SNS, it may result in failures. Understanding the integration requirements between AWS SNS and the associated services and ensuring compatibility can help avoid such issues.
  6. Service disruptions or outages within the AWS infrastructure can impact the functioning of AWS SNS. Although AWS strives to maintain high availability, occasional service disruptions can occur. Monitoring the AWS Service Health Dashboard and subscribing to relevant notifications can provide updates on any ongoing issues and expected resolution times.
  7. When using AWS SNS with third-party applications or endpoints, failures can occur due to issues on the recipient side. This could include misconfigured endpoints, incorrect authentication credentials, or unsupported protocols. Collaborating with the recipient or endpoint owner to troubleshoot and resolve any issues can help restore the functionality of AWS SNS.

TOP 13 Tech facts and history of creation and versions about AWS SNS Development

  • AWS SNS (Amazon Simple Notification Service) is a fully managed messaging service that enables you to decouple microservices, distributed systems, and serverless applications. It was created by Amazon Web Services (AWS) in 2010.
  • AWS SNS supports multiple messaging protocols, including HTTP, HTTPS, email, SMS, and SQS (Simple Queue Service). This flexibility allows developers to send notifications to a wide range of endpoints, making it a versatile tool for various use cases.
  • One of the groundbreaking features of AWS SNS is its ability to fanout messages to multiple subscribers. This means that a single message can be simultaneously sent to multiple endpoints, reducing complexity and improving scalability.
  • AWS SNS provides a publish-subscribe model, where publishers send messages to topics, and subscribers receive messages from these topics. This model allows for easy decoupling and scaling of components in a distributed system.
  • With AWS SNS, you can easily create topics, subscribe to them, and publish messages to them using the AWS Management Console, CLI (Command Line Interface), or SDKs (Software Development Kits) available for various programming languages.
  • In 2015, AWS introduced AWS Mobile Push, which integrated AWS SNS with AWS Mobile Hub, enabling mobile app developers to send push notifications to their users across different platforms, including iOS, Android, and Kindle devices.
  • Another significant feature added to AWS SNS is Message Filtering, introduced in 2018. This feature allows subscribers to selectively receive only the messages they are interested in, based on specific filtering policies.
  • AWS SNS offers high throughput and reliable delivery of messages. It leverages the infrastructure and scalability of AWS to ensure that messages are delivered promptly and reliably, even under high loads.
  • Since its launch, AWS SNS has continuously evolved and expanded its capabilities. It has become an essential component in the AWS ecosystem, widely used by developers and organizations to build scalable and robust applications.
  • As of 2021, AWS SNS is available in multiple regions worldwide, allowing developers to deploy their applications closer to their end-users for reduced latency and improved performance.
  • AWS SNS integrates seamlessly with other AWS services, such as AWS Lambda, Amazon SQS, Amazon CloudWatch, and AWS Identity and Access Management (IAM), providing a comprehensive set of tools for building event-driven architectures.
  • AWS SNS provides detailed monitoring and logging capabilities through Amazon CloudWatch. Developers can monitor metrics, set alarms, and gain insights into the performance of their SNS topics and messages.
  • With the introduction of AWS EventBridge, a serverless event bus service, in 2019, AWS SNS became an integral part of the event-driven architecture offered by AWS, allowing for the easy integration of various event sources and targets.

TOP 10 AWS SNS Related Technologies

  • 1. Python

    Python is a versatile and widely used programming language for AWS SNS software development. Its simplicity and readability make it a popular choice among developers. Python provides a rich set of libraries and frameworks, such as Boto3, which simplifies the integration with AWS services like SNS. With its vast community support and extensive documentation, Python is an excellent choice for developing SNS applications.

  • 2. Java

    Java is another highly popular language for AWS SNS software development. It offers a robust and scalable platform for developing enterprise-level applications. Java’s platform independence allows developers to build applications that can run on diverse systems. With the AWS SDK for Java, developers can easily integrate SNS functionality into their applications, enabling them to publish and subscribe to topics seamlessly.

  • 3. JavaScript/Node.js

    JavaScript, along with its runtime environment Node.js, is gaining popularity for AWS SNS software development. With Node.js, developers can build scalable and high-performance applications that leverage asynchronous event-driven architecture. The AWS SDK for JavaScript (AWS SDK for Node.js) provides comprehensive APIs for interacting with SNS, making it a preferred choice for server-side development and real-time messaging applications.

  • 4. AWS Lambda

    AWS Lambda is a serverless computing service that allows developers to run code without provisioning or managing servers. It is an ideal choice for event-driven architectures, including SNS-based applications. With Lambda, developers can create functions that automatically trigger in response to SNS notifications, enabling seamless integration and efficient processing of messages.

  • 5. AWS CloudFormation

    AWS CloudFormation is a powerful infrastructure-as-code service that allows developers to provision AWS resources and manage their entire infrastructure using declarative templates. By utilizing CloudFormation, developers can easily create and manage SNS topics, subscriptions, and other related resources, ensuring consistent and repeatable deployments.

  • 6. AWS SDKs

    The AWS SDKs (Software Development Kits) provide a collection of libraries and tools that simplify the integration of AWS services, including SNS, into various programming languages. With SDKs available for popular languages like Python, Java, JavaScript, and more, developers can quickly get started with SNS development, accessing all the necessary APIs and functionalities.

  • 7. AWS CloudWatch

    AWS CloudWatch is a monitoring and observability service that provides insights into the performance and health of AWS resources. By utilizing CloudWatch, developers can monitor SNS metrics, set up alarms for critical events, and gain valuable operational insights. This enables proactive monitoring and troubleshooting of SNS-based applications, ensuring smooth operation at scale.

Pros & cons of AWS SNS

6 Pros of AWS SNS

  • Scalability: AWS SNS allows you to send messages to millions of subscribers with high throughput, ensuring that your messages are delivered in a timely manner.
  • Reliability: With AWS SNS, your messages are stored redundantly across multiple availability zones, ensuring high availability and durability.
  • Easy Integration: AWS SNS provides a simple and easy-to-use API that allows you to integrate messaging capabilities into your applications seamlessly.
  • Multiple Messaging Protocols: AWS SNS supports various messaging protocols, including HTTP, HTTPS, email, SMS, and mobile push notifications, giving you the flexibility to choose the most suitable method for your communication needs.
  • Flexible Message Filtering: AWS SNS allows you to filter messages based on attributes, enabling you to deliver specific messages to targeted subscribers efficiently.
  • Cost-effective: AWS SNS offers a pay-as-you-go pricing model, allowing you to pay only for the messages you send without any upfront fees or long-term commitments.

6 Cons of AWS SNS

  • Potential Complexity: While AWS SNS provides powerful messaging capabilities, configuring and managing the service may require some level of technical expertise and understanding of the AWS ecosystem.
  • Learning Curve: If you are new to AWS, it may take some time to familiarize yourself with the concepts and APIs of AWS SNS.
  • Additional Costs for Advanced Features: While the basic functionality of AWS SNS is cost-effective, certain advanced features, such as message filtering and mobile push notifications, may incur additional costs.
  • Dependency on AWS Infrastructure: AWS SNS is a cloud-based service, meaning that you are reliant on the availability and performance of AWS infrastructure for message delivery.
  • Limited Direct Support: AWS SNS offers support through documentation, forums, and community resources. However, direct support from AWS might be limited compared to premium support options.
  • Data Transfer Costs: If you are sending messages across different AWS regions or outside of AWS, data transfer costs may apply, potentially increasing your overall expenses.

Hard skills of a AWS SNS Developer

As an AWS SNS Developer, it is important to have a strong set of hard skills to effectively work with the Amazon Simple Notification Service. Here are the hard skills required for different levels of expertise:

Junior

  • AWS SNS Basics: Understanding the fundamentals of AWS SNS, including topics, subscriptions, and message delivery.
  • Message Filtering: Knowledge of message filtering techniques using subscription filter policies.
  • Error Handling: Ability to handle and troubleshoot errors and exceptions in AWS SNS.
  • Integration with Other AWS Services: Experience in integrating AWS SNS with other AWS services like Lambda, SQS, and CloudWatch.
  • Security and Access Control: Understanding of IAM policies and resource-level permissions for securing AWS SNS resources.

Middle

  • Advanced SNS Topics: Proficiency in creating and managing advanced SNS topics, including FIFO topics and message attributes.
  • Message Filtering Policies: Ability to create complex subscription filter policies to selectively deliver messages.
  • Monitoring and Metrics: Knowledge of monitoring SNS metrics using CloudWatch, setting up alarms, and creating custom metrics.
  • Dead-Letter Queues: Understanding and implementation of dead-letter queues for handling undeliverable messages.
  • Multi-Region Replication: Experience in setting up SNS multi-region replication for high availability and disaster recovery.
  • Event-Driven Architecture: Familiarity with designing and implementing event-driven architectures using AWS SNS.
  • Performance Optimization: Optimization techniques for improving the performance and scalability of SNS applications.

Senior

  • Message Filtering Policies: Expertise in creating complex subscription filter policies and managing large-scale message filtering.
  • Message Encryption: Understanding and implementation of end-to-end message encryption in AWS SNS.
  • Serverless Architectures: Proficiency in designing and building serverless architectures using AWS SNS and other serverless services.
  • Advanced Monitoring and Alerting: Deep understanding of CloudWatch metrics, logs, and tracing for advanced monitoring and alerting.
  • Optimizing Costs: Ability to optimize AWS SNS costs by leveraging features like message batching and efficient resource utilization.
  • Performance Tuning: Expert-level skills in performance tuning and optimization of AWS SNS applications.
  • Disaster Recovery and Resilience: Knowledge of implementing disaster recovery strategies and ensuring high resilience in SNS applications.
  • Leadership: Ability to lead and mentor a team of AWS SNS developers, providing technical guidance and driving best practices.

Expert/Team Lead

  • Message Filtering Policies: Mastery in creating and managing complex subscription filter policies for advanced message routing.
  • Advanced Integration Patterns: Proficiency in integrating AWS SNS with various AWS services and third-party systems using advanced integration patterns.
  • Event-Driven Microservices: Expertise in designing event-driven microservices architectures using AWS SNS as a messaging backbone.
  • Highly Scalable Architectures: Experience in building highly scalable and fault-tolerant architectures using AWS SNS and related services.
  • Security and Compliance: In-depth understanding of security best practices and compliance requirements in AWS SNS applications.
  • Performance Optimization and Fine-Tuning: Mastery in optimizing the performance and fine-tuning of AWS SNS applications for maximum efficiency.
  • DevOps and Automation: Knowledge of implementing DevOps practices and automation for continuous integration and deployment of AWS SNS applications.
  • Architecture Review and Governance: Ability to review and govern the architecture of AWS SNS applications to ensure adherence to best practices and standards.
  • Technical Leadership: Strong leadership skills in guiding and mentoring a team of AWS SNS developers, driving technical excellence and innovation.
  • Problem Solving and Troubleshooting: Expert-level skills in problem-solving and troubleshooting complex issues in AWS SNS applications.
  • Customer Engagement: Proficiency in engaging with customers, understanding their requirements, and providing effective solutions using AWS SNS.

What are top AWS SNS instruments and tools?

  • AWS CloudWatch: AWS CloudWatch is a monitoring and observability service that provides real-time insights into the usage and performance of AWS resources. It offers a wide range of monitoring capabilities for Amazon SNS, including metrics, alarms, and dashboards. CloudWatch enables users to gain visibility into their SNS topics and subscriptions, track message delivery rates, and monitor the overall health of their SNS infrastructure.
  • AWS CloudTrail: AWS CloudTrail is a service that enables governance, compliance, operational auditing, and risk auditing of your AWS account. It records API activity within your AWS environment, including actions performed on Amazon SNS topics and subscriptions. CloudTrail logs can be used for security analysis, resource change tracking, and troubleshooting.
  • AWS Lambda: AWS Lambda is a serverless compute service that allows you to run code without provisioning or managing servers. It can be integrated with Amazon SNS to process incoming messages and trigger custom actions. Lambda functions can be used to filter, transform, or forward SNS messages, providing flexibility and extensibility to your SNS workflows.
  • AWS SDKs: AWS Software Development Kits (SDKs) are programming libraries that provide developers with easy-to-use interfaces for interacting with AWS services. AWS SDKs support multiple programming languages and offer dedicated APIs for working with Amazon SNS. They simplify the process of integrating SNS into your applications and enable you to send, receive, and manage SNS messages programmatically.
  • AWS CloudFormation: AWS CloudFormation is a service that allows you to define and provision AWS infrastructure as code. It provides a template-based approach for creating and managing AWS resources, including SNS topics and subscriptions. With CloudFormation, you can automate the deployment and configuration of your SNS infrastructure, making it easier to manage and replicate across multiple environments.
  • AWS Command Line Interface (CLI): The AWS Command Line Interface (CLI) is a unified tool that allows you to manage your AWS services from the command line. It provides a command-line interface for interacting with SNS, enabling you to create topics, subscribe endpoints, publish messages, and perform other SNS operations. The CLI is particularly useful for automating tasks and integrating SNS with other command-line tools or scripts.
  • AWS SDK for JavaScript: The AWS SDK for JavaScript allows developers to build web applications and browser extensions that interact with AWS services, including SNS. It provides a JavaScript API for sending and receiving SNS messages, managing subscriptions, and working with SNS topics. The SDK offers a convenient way to incorporate SNS functionality into your web applications and leverage the power of SNS in the browser.
  • AWS Management Console: The AWS Management Console is a web-based interface for managing your AWS resources. It provides an intuitive graphical user interface (GUI) for configuring and monitoring your SNS topics and subscriptions. With the Management Console, you can easily create topics, set access policies, subscribe endpoints, and view message metrics and delivery status.

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