Java Developer

Java (Java+ Angular 11and above version )

 • Perform Full stack web application development with Javascript, Typescript, Angular, HTML5, Java/J2EE and REST.  

 • Understanding legacy systems in C# / Java and rewriting ground up in Angular stack. 

 • Provides application software development services or technical support in more complex situations. 

 • Has thorough knowledge of the Software Development Life Cycle and comfortable in AGILE development model. 

 • Work with the product owners in the POD for requirements gathering, reviews and epic/story refinements. 

 • Work closely on a small team to define function specifications and build the next generation of products leveraging Angular frameworks. 

 • Work in an onshore/offshore extended team development model. Coordinates coding, testing, implementation, and documentation of solution. Ensures that expected application performance levels are achieved. 

 • Proposes innovative, creative technology solutions and contributes to the achievement of related teams' objectives.

Skills Required:

Java (core java/Java 8), JavaScript, Typescript, Angular 11and above version, HMTL5, Java/J2EE, REST, AJAX is mandatory. Reactive Programming, CSS, Material Design, Spring is preferred. 

About Streamlyn 

Streamlyn is a regional leader in adtech, specializing in enhancing monetization for Publishers through innovative and compelling ad products. Our ad tech engagement solutions suite empowers Publishers to elevate their business and monetize their content effectively. With a vast network of premium publisher partners across Asia, Streamlyn reaches over 100 million consumers monthly. 

Job Overview 

As a Senior Software Development Engineer at Streamlyn, you will play a pivotal role in ensuring the stability and high quality of our products, serving billions of impressions per month across diverse websites with varying audiences. The AdTech industry demands robust and scalable systems. SDEs at Streamlyn are responsible for building and maintaining systems that can handle large data volumes, service billions of requests, and provide in-depth analytics to our publishers. You will be able to work on various back-end systems, taking ownership of features from conception through delivery. 

Our cutting-edge tech stack runs on AWS Cloud. It includes Java, Netty, Spring Boot, NodeJS, Python, MariaDB, PostgreSQL, Aerospike, AWS Elasticache, AWS EMR, Apache Spark, Kafka, Cassandra, Aerospike, AWS EKS, Docker Containers, and C++. 

Roles and Responsibilities: 

• Analyse and decompose complex software systems, collaborating with cross functional teams to influence design for testability.  
• Design and build advanced, highly scalable automated test and release infrastructure.  
• Drive the adoption of best practices in code health, testing, and maintainability. 
• Build and cultivate innovation by driving cross-collaboration and project execution across multiple teams.  
• Mentor and train team members on design techniques and coding standards. 
• Collaborate effectively with design, product, and engineering teams in various global applications.  
• Audit existing codebase for performance enhancements and aid in architectural decisions. Responsible for thoroughly testing output in all supported browsers and devices. 

Qualifications: 

• Over 5 years of experience in developing high-performance, scalable services, with a proven track record of taking product ownership and delivering robust solutions. 
• Proficient in Java, Python, MySQL, and various NoSQL databases including Aerospike, Redis, and Cassandra. Well-versed in Linux environments and shell scripting. 
• Expertise in designing and implementing microservices architectures and APIs, ensuring clean, scalable, and maintainable code through advanced knowledge of design patterns and coding practices. 
• Demonstrated ability in building and operating high-volume, low-latency distributed services optimized for scalability and speed. 
• Programming Languages: Java, Python 
• Databases: MySQL, Aerospike, Redis, Cassandra 
• Technologies: Kafka, ETL, Linux, Shell Scripting 
• Cloud Services: Extensive knowledge of AWS services 
• Strong analytical skills and proficiency in Data Structures and Algorithms.
• Advanced system design capabilities with a focus on continuous integration and continuous deployment (CI/CD). 
• Experience in technical strategy refinement and mentorship of engineering teams. 
• Ability to excel in dynamic environments, balancing multiple projects and adapting to evolving business requirements. 
• Exceptional communication and collaboration skills, facilitating effective cross functional teamwork. 
• Highly motivated and curious with a commitment to lifelong learning and professional development. 
• Experience with Agile methodologies preferred.  

Cultural Competencies 

• Out-of-the-box thinking, willingness to learn from failures, and bringing innovation to the center stage. 
• Creative confidence 
• Collaborative mindset and excellent teamwork skills 
• Skilled at receiving feedback, as well as providing it 
• Entrepreneurial & adaptable; excellent learning skills 
• Transparent & communicative, patient 
• Curious, research-minded, data-informed

About the Role 

As a result of our rapid growth, we are looking for a Java Backend Engineer to join our existing Cloud Engineering team and take the lead in the design and development of several key initiatives of our existing Miko3 product line as well as our new product development initiatives. 

Responsibilities 

•  Designing, developing and maintaining core system features, services and engines
• Collaborating with a cross functional team of the backend, Mobile application, AI, signal processing, robotics Engineers, Design, Content, and Linguistic Team to realize the requirements of conversational social robotics platform which includes investigate design approaches, prototype new technology, and evaluate technical feasibility
• Ensure the developed backend infrastructure is optimized for scale and responsiveness 
• Ensure best practices in design, development, security, monitoring, logging, and DevOps adhere to the execution of the project. 
• Introducing new ideas, products, features by keeping track of the latest developments and industry trends 
• Operating in an Agile/Scrum environment to deliver high quality software against aggressive schedules

Requirements 

• Proficiency in distributed application development lifecycle (concepts of authentication/authorization, security, session management, load balancing, API gateway), programming techniques and tools (application of tested, proven development paradigms)  
• Proficiency in working on Linux based Operating system. 
• Working Knowledge of container orchestration platform like Kubernetes
• Proficiency in at least one server-side programming language like Java. Additional languages like Python and PHP are a plus 
• Proficiency in at least one server-side framework like Servlets, Spring, java spark (Java). 
• Proficient in using ORM/Data access frameworks like Hibernate,JPA with spring or other server-side frameworks. 
• Proficiency in at least one data serialization framework: Apache Thrift, Google ProtoBuffs, Apache Avro,Google Json,JackSon etc. 
• Proficiency in at least one of inter process communication frameworks WebSocket's, RPC, message queues, custom HTTP libraries/frameworks ( kryonet, RxJava ), etc.  
• Proficiency in multithreaded programming and Concurrency concepts (Threads, Thread Pools, Futures, asynchronous programming). 
• Experience defining system architectures and exploring technical feasibility tradeoffs (architecture, design patterns, reliability and scaling)
• Experience developing cloud software services and an understanding of design for scalability, performance and reliability
• Good understanding of networking and communication protocols, and proficiency in identification CPU, memory & I/O bottlenecks, solve read & write-heavy workloads. 
• Proficiency is concepts of monolithic and microservice architectural paradigms. 
• Proficiency in working on at least one of cloud hosting platforms like Amazon AWS, Google Cloud, Azure etc.   
• Proficiency in at least one of database SQL, NO-SQL, Graph databases like MySQL, MongoDB, Orientdb 
• Proficiency in at least one of testing frameworks or tools JMeter, Locusts, Taurus 
• Proficiency in at least one RPC communication framework: Apache Thrift, GRPC is an added plus 
• Proficiency in asynchronous libraries (RxJava), frameworks (Akka),Play,Vertx is an added plus 
• Proficiency in functional programming ( Scala ) languages is an added plus 
• Proficiency in working with NoSQL/graph databases is an added plus 
• Proficient understanding of code versioning tools, such as Git is an added plus 
• Working Knowledge of tools for server, application metrics logging and monitoring and is a plus Monit, ELK, graylog is an added plus 
• Working Knowledge of DevOps containerization utilities like Ansible, Salt, Puppet is an added plus 
• Working Knowledge of DevOps containerization technologies like Docker, LXD is an added plus  

Job Requirements :

- Should have experience in supporting the application and infrastructure 24x7.

- Should have good working knowledge on troubleshooting skills of Operating Systems (Linux/Windows)

- Good experience on Java/j2EE application supporting and AWS infra supporting.

- Ability to work with 3rd parties/FOPS and provide required instruction to troubleshoot and restore faults.

- Respond quickly and effectively to production issues, troubleshooting solutions, and
taking responsibility for seeing those solutions through resolution.

- Identify root cause and corrective actions for highly complex availability, capacity, security, performance, and quality issues affecting the database.

- Strong knowledge of Linux/Unix operating system.

- Good knowledge of scripting languages like Shell, Python.

- Good Knowledge of Databases like Mongo, Mysql, SQL Server.

- Respond to alerts and take corrective action to ensure the high availability of our
production environments and participate in an after-hours on-call rotation.

- Experience/Knowledge of other cloud platforms (Azure, Google Cloud) is a plus

- Strong verbal and written communications skills are a must

- Must have production support experience as the requirement is 24X7X365 production support.

Preferred qualifications:

• 3-7 years of relevant work experience in business application development/implementation with strong understanding of Microservice Architecture.
• Very Strong in Core Java (OOP, Collections, Threads, Regular Expressions, Exception handling)
• Must have strong experience in software design and development and familiar with technologies - Java, Java-J2EE, JSP, Spring Boot, Spring Cloud, Spring Securities, Hibernate, Ajax, REST API, Microservices, Angular etc
• Strong knowledge of Queuing frameworks like ActiveMQ, RabbitMQ, Kafka etc and Caching frameworks like Redis, Hazelcastetc
• Strong understanding of 12 Factor Apps and Cloud Native fundamentals and design patterns
• Good knowledge on coding standards, design patterns, unit testing, Junit, Mockito
• Good to have experience with Docker&Kubernetes and ability to configure and run CI/CD pipelines
• Good knowledge of database SQL / NoSQLand trade-off among multiple DB technologies
• Experience implementing, customizing and/or integrating third-party applications within business enterprise software.
• Understand software implementation lifecycle (e.g., analyze, design, build, test, implement, support).
• Excellent communication and analytical skills and a demonstrable bias toward action.
• Good documentation skills to create Technology related Documents
• Hands on with AWS and/or Azure cloud

Responsibilities:

• Design, deploy and build solutions, with custom front ends (web, mobile) and backend services that automate business processes in Java Techstacks with Microservice architecture.
• Coordinate with tech leads and software engineers working on related deliverables
• Work closely with analysts and business process owners to translate business requirements into technical solutions.
• Create database schema and optimize data handling and storage
• Learn, diagnose and implement features and bug fixes, Implement debugging techniques and ability to find root causes of problems
• Mentor Junior team members, Provide technical expertise to product or project team
• Maintain highest levels of development practices including: technical design, solution development, systems configuration, test documentation/execution, issue identification and resolution, and writing clean, modular and self-sustaining code, with repeatable quality and predictability.
• Produce highly usable systems that are high performance, easy to maintain and engineered to meet business needs
• Communicate ideas and develop strategy through presentations, demonstrations and specifications
• Assist the product or project manager in creation of functional and technical documents

Java

Mandatory:

1. Strong expertize in Java/J2EE(4-7 years of experience)
2. Strong  expertize in Microservices, SpringBoot
3. Java including multithreading and concurrency

Preferred skills :

1. Experience in  Virtualization, SDN, NFV, Yang, Netconf
2. Good Knowledge on Networking
3. Multithreading and concurrency

• You are a great teammate with proven capabilities working on SaaS product and a passion for writing exception code.
• You are hungry for an opportunity to join a start-up and become a member of core platform team driving the company forward.
• Has good analytical and problem-solving skills and is able to break down a solution into smaller units of work and produce a solution roadmap.
• Has written high quality, well-tested shared components that can be leveraged by multiple systems. Can step into specific projects to supply additional management, coding and engineering capacity as needed.
• Has expert knowledge in distributes systems and high-volume transactions.
• Understand the product mission, goals, and tasks and execute with the team to achieve them.
• Understand the design and architecture and build modules in accordance with it or recommend and make the necessary changes that adds more stability to our product.
• Improve the quality of our front-end code and our overall front-end user experience.
• Takes requirements (business features, technical debts and internal enhancements) and designs resilient solutions. 

• 1+ years of hands-on experience in Java/Kotlin.
• Demonstrable understanding of Design Patterns.
• Experience in Context & Dependency Injection or Spring framework, Hibernate/JPA.
• Experience in RESTful/SOAP web services in integrating with 3rd Party API Integrations.
• Proficient in SQL (PostgreSQL) and NoSQL databases.
• Experience in multi-threading and concurrency is a plus Experience in JMS messaging using Apache Zookeeper and Kafka is a plus.
• Experience in Angular is a plus. Knowledge of modern CI/CD environments: Git, Gradle, GitLab Familiarity with tools like Postman, SOAPUI, IntelliJ

• Willing to learn our tech-stack (Kotlin | CDI | Angular).
• Develop API integrations using RESTful/SOAP web services.
• Significant technical academic course work or equivalent work experience
• Excellent communication and interpersonal skills.
• Knowledge on cloud infrastructure is a plus.

1. 0 to 2 years of experience into Java 6/7/8, J2EE, EJB, Servlets, JSP, JDBC, LOG4J, SQL, PL/SQL, XML, XSLT, JSON,
2. Good to have strong experience in Core Java SpringBoot, Spring framework
3. knowledge of Spring MVC, Spring REST, JDBC Templates
4. Knowledge of Java/J2EE Design patterns
5. knowledge of implementation of WebServices like REST will be added advantage
6. Good knowledge of Relational Databases like MySQL, PostgreSQL, MS SQL Server with complex SQL Queries, Stored Procedure, Triggers
7. Knowledge of Unit Test Cases is added advantage
8. Knowledge of build tools like Maven, Gradle, Ant
9. Knowledge of any one or more of MongoDB, Cassandra, Neo4J, Redis, Kafka, ActiveMQ, Caches, Microservices will be a major plus
10. Good to have knowledge of ORM like Hibernate
11. Knowledge and experience in nodejs backend will be added advantage

Requirements :

1. Must be a good team player and self-motivated Individual
2. Very Strong analytical abilities and interpersonal skills
3. Strong verbal and written communication skills with other developers and business clients
4. High commitment levels