Software Engineer II (Golang, Microservices, Kubernetes, CICD)

JOB DESCRIPTION

Experience: 3-5 years

Wissen Technology is now hiring for a Senior Java Developer - Bangalore with hands-on experience in Core Java, algorithms, data structures, multithreading and SQL. We are solving complex technical problems in the industry and need talented software engineers to join our mission and be a part of a global software development team. A brilliant opportunity to become a part of a highly motivated and expert team which has made a mark as a high-end technical consulting. 

Required Skills:

• Exp. - 3-5 years
• Experience in Core Java and Spring Boot.
• Extensive experience in developing enterprise-scale applications and systems. Should possess good architectural knowledge and be aware of enterprise application design patterns.
• Should have the ability to analyze, design, develop and test complex, low-latency client- facing applications.
• Good development experience with RDBMS.
• Good knowledge of multi-threading and high-performance server-side development.
• Basic working knowledge of Unix/Linux.
• Excellent problem solving and coding skills.
• Strong interpersonal, communication and analytical skills.
• Should have the ability to express their design ideas and thoughts

1.4+ years of software development experience

2. Strong experience with Kubernetes, Docker, and CI/CD pipelines in cloud-native environments.

3. Hands-on with NATS for event-driven architecture and streaming.

4. Skilled in microservices, RESTful APIs, and containerized app performance optimization.

5. Strong in problem-solving, team collaboration, clean code practices, and continuous learning.

6. Proficient in Java (Spring Boot) and Python (Flask) for building scalable applications and APIs.

7. Focus: Java, Python, Kubernetes, Cloud-native development

Job Title: Java Backend Developer

Experience: ~3-6 years (Mid-to-Senior)

Employment Type: Full-time, Permanent

Location : Bangalore

Role Overview

As a Java Backend Developer, you’ll be responsible for designing, developing, and maintaining scalable backend systems and microservices. You’ll work with cross-functional teams to build high-performance distributed services, APIs, and data-driven applications that power business solutions.

Key Responsibilities

• Design and implement microservices and backend components using Java (8+) and Spring Boot.
• Build and consume RESTful APIs and integrate with internal/external services.
• Work with event-driven systems and messaging using Apache Kafka (producers/consumers).
• Develop and optimize databases, including SQL (e.g., MySQL/PostgreSQL) and NoSQL (e.g., MongoDB/Cassandra).
• Participate in CI/CD pipelines, automated builds, and deployments using tools like Git, Maven, Jenkins.
• Ensure code quality through unit and integration testing, documentation, and code reviews.
• Collaborate with frontend developers, QA, DevOps, and product teams following Agile methodologies.

Required Skills & Qualifications

• Bachelor’s degree in Computer Science, Information Technology, or related field.
• Proven hands-on experience with Core Java and Spring Boot development.
• Strong understanding of microservices architecture, REST APIs, and distributed systems.
• Experience with message queues/event streaming (Apache Kafka).
• Skilled in relational and NoSQL databases and writing optimized queries.
• Comfortable with CI/CD tools (e.g., Git, Maven, Jenkins) and version control.
• Good problem-solving, debugging, and collaboration skills.

Preferred / Nice-to-Have

• Cloud platform experience (AWS / Azure / GCP).
• Familiarity with containerization (Docker) and orchestration (Kubernetes).
• Knowledge of performance tuning, caching strategies, observability (metrics/logging).
• Agile/Scrum development experience.

Roles and Responsibilities:

● Design, architect, and drive implementation of entire products and key engineering features

● Plan and track the development and release schedules, and provide visible leadership in crisis

● Establish and follow best practices, including coding standards and technical task management

● Involve in the end-to-end architecture design and implementation

● Deal with a dynamic project or feature with changing requirements

● Recruit, motivate and develop a superior team, establish a clear definition of functional excellence and create a culture based on those practices

Experience and Skills you MUST have:

● Web application development and micro-services architecture using JavaScript, Python, and JavaScript libraries and ReactJs and other web technologies - HTML, CSS, and JS

● Experience with RDBMS or NoSQL Database technologies like MySQL, MongoDB, PostgreSQL, ElasticSearch, and Redis

● End to end deployment and DevOps using - Kubernetes, Docker, GCP Stack

● Knowledge of Jenkins, Prometheus, New Relic, and other tools

● Experience implementing testing platforms and unit tests

● Rock solid at working with third-party dependencies and debugging dependency conflict

• 2.5+ year of experience in Development in JAVA technology.
• 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:

• 2+ 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.

Responsibilities:

• Design and create services and system architecture for your projects, while working.
• Closely with the product, design and engineering team.
• Participate in brainstorming sessions and contribute ideas to our technology, algorithms and products.
• Dive into difficult problems and successfully deliver results on schedule.
• Own services related to OkCredit features in active development.
• Develop and deploy required services responsible for evolution of the overall product.
• Do server side development in golang/python preferably (or any other language).
• Deploying stuff in production in docker containers.
• Write tests.
• Invent awesome stuff to make your job easier

• Motivation to design and build reliable, elegant backend services.
• At least 2 - 5 years of backend development experience.
• Proficiency in GoLang is MANDATORY.
• Familiarity with infrastructure concepts related to docker, kubernetes is preferred.
• Familiarity with Protocol buffers. Protocol buffers are now OkCredit's lingua franca for data.
• Familiarity with message-oriented middleware like rabbitmq, google pubsub.
• Familiarity with cloud platforms like gcp, aws etc.

http://getsimpl.com/">Simpl partners with popular online brands and offers their customers the ability to make purchases without paying for them at that very moment.

Over the years, additionally, it has also developed a range of offerings including a one-time checkout feature; Bill Box, which allows customers to automate their recurring expense payouts, and splitting a bill in three parts, to build a “full-stack solution,” said Nitya Sharma, co-founder and chief executive of Simpl, in an interview with TechCrunch.

Some of Simpl’s partners include telecom network Jio Platforms, food delivery service Zomato, pharmacy 1MG, grocer BigBasket and ticketing platform MakeMyTrip.

Know More About Simpl

[ https://techcrunch.com/2021/11/30/india-fintech-simpl-raises-40-million">https://techcrunch.com/2021/11/30/india-fintech-simpl-raises-40-million ]

[ https://getsimpl.com/about-us/">https://getsimpl.com/about-us/ ]

Java 1.8 or later/Golang/Ruby on Rails,
Spring, Spring Boot, Microservices, SQL / NoSLQ , REST APIs , Redis , Kafka, Rabbit MQ, Docker, AWS

B2B / B2C / Cloud (AWS/ GCP) / SAAS Products ,  Software Best Practices , REST / GRPC , Domain Driven Design, Event and Message Driven Systems , Data Structures , Algorithms, OOPS, System Design, JUnit, Mockito, Fitnesse, Cucumber, HTML/ CSS / Javascript, Git , Bitbucket, Maven, Asynchronous / Functional / Reactive Programming in Java

• An Engineering Degree - B.E/B.Tech/MS/PhD in any stream – Computer Science preferred.
• 7-12 years of relevant experience in building highly resilient, highly scalable systems
• Understand the product management space with Agile methodologies.
• Demonstrated end-to-end ownership for development and design of least one cloud-based product - Experience in building microservices / platforms is desirable.
• Strong desire to drive change, and ability to adapt to change quickly. Proficient in new and emerging technologies.
• Ability to balance the long-term “big picture” and short-term implications of design decisions.
• Exceptional communication and interpersonal skills - including negotiation, facilitation, and consensus building skills; ability to influence and persuade, without direct control.
• Mentoring / coaching Junior and Senior Engineers.
• Focus on reusability, frameworks, patterns and configuration tools for faster development.
• Excellent in Engineering excellence – code quality, performance tuning / chaos engineering, operational excellence etc.
• DevOps and TechFinOps mindset to problem solving and product development.

Key Responsibilities: 

• Rewrite existing APIs in NodeJS. 
• Remodel the APIs into Micro services-based architecture. 
• Implement a caching layer wherever possible. 
• Optimize the API for high performance and scalability. 
• Write unit tests for API Testing.
• Automate the code testing and deployment process.

Skills Required: 

• At least 3 years of experience developing Backends using NodeJS — should be well versed with its asynchronous nature & event loop, and know its quirks and workarounds. 
• Excellent hands-on experience using MySQL or any other SQL Database. 
• Good knowledge of MongoDB or any other NoSQL Database. 
• Good knowledge of Redis, its data types, and their use cases. 
• Experience with graph-based databases like GraphQL and Neo4j. 
• Experience developing and deploying REST APIs. 
• Good knowledge of Unit Testing and available Test Frameworks. 
• Good understanding of advanced JS libraries and frameworks. 
• Experience with Web sockets, Service Workers, and Web Push Notifications. 
• Familiar with NodeJS profiling tools. 
• Proficient understanding of code versioning tools such as Git. 
• Good knowledge of creating and maintaining DevOps infrastructure on cloud platforms. 
• Should be a fast learner and a go-getter — without any fear of trying out new things Preferences. 
• Experience building a large scale social or location-based app.