
About Fission Labs
About
Fission Labs is a Software Product Development & Services company delivering high-end solutions primarily in the areas of highly scalable cloud applications and analytics for large sets of data. Few of the challenges we are working on are scaling an application to support 150 million users, real-time bidding with response time requirements of 100 ms or less. If you are somebody who wants to work on big challenges and change the world, we have those opportunities in spades
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We are seeking a highly motivated and skilled Java + AWS Developer to join our backend development team. The ideal candidate will have solid experience in building scalable backend systems using Java and AWS services. You will work closely with cross-functional teams to design, develop, and maintain high-performance microservices and cloud-native applications.
Key Responsibilities:
- Develop, deploy, and maintain backend services and APIs using Java (preferably Java 8 or above) and Spring Boot
- Design and implement microservices architecture with a focus on scalability and reliability
- Leverage AWS services such as EC2, Lambda, S3, RDS, DynamoDB, API Gateway, SNS/SQS, and CloudWatch for cloud-native development
- Work with Relational and NoSQL databases (PostgreSQL, MySQL, DynamoDB)
- Implement CI/CD pipelines using tools like Jenkins, GitHub Actions, or AWS CodePipeline
- Write clean, efficient, and testable code following best practices
- Participate in code reviews, design discussions, and Agile ceremonies
- Monitor and troubleshoot applications in production using AWS CloudWatch or other logging tools
- Ensure secure, reliable, and efficient integration between services
Required Skills and Qualifications:
- 4–6 years of hands-on experience in Java development with strong knowledge of Spring Boot
- Solid understanding of RESTful APIs, Microservices, and API security
- Strong experience with AWS Cloud Services (EC2, S3, Lambda, RDS, CloudWatch, API Gateway, etc.)
- Familiarity with containerization (Docker) and orchestration tools (ECS, EKS, or Kubernetes)
- Proficient in working with SQL and NoSQL databases
- Good understanding of event-driven architecture and messaging systems (e.g., SNS, SQS, Kafka)
- Experience with version control systems like Git
- Exposure to CI/CD and DevOps practices is a plus
- Excellent communication and problem-solving skills
Preferred Qualifications:
- AWS Certification (e.g., AWS Certified Developer – Associate) is a plus
- Experience in Agile/Scrum development environments
- Knowledge of Infrastructure as Code (IaC) tools like Terraform or CloudFormation
Hands-on experience in C#, http://asp.net/" target="_blank">ASP.NET, MVC, Web API, SQL Server.
· Experience in latest .Net framework versions (4/4.5/.Net Core 2.0 Frameworks), SQL Server 2008/2012.
· Experience in OOPS, HTML5, Bootstrap,CSS, AJAX/ JavaScript/ JQuery/ AngularJS and Angular 2.0 and web development.
· Excellent communication, analytical and interpersonal skills.
· .NET Full Stack (C#, MVC / .Net Core, WEB API, JSON, REST, JavaScript, Ajax)
· Good knowledge on Angular development, Angular JS
· knowledge in Azure cloud solutions.
· Developing and Hosting REST API Swagger and integration with angular.
About Team:
CaratLane's mission is to help customers express their emotions through jewellery. Consumer Experience Technology team is an enabler to deliver the exceptional Consumer Experience and WoW business features in large scale website, apps and backend systems.
What do we want:
* 5 to 8 years of experience in Java and Spring Boot working with large scale backend applications
* Expertise in PostgreSQL and any of caching databases
* Experience in developing RESTful/GraphQL APIs and microservices based applications
* Good problem solving and debugging skills.
* Exposure on event-driven, asynchronous I/O
* Good knowledge of engineering excellence: Unit Testing/TDD, Code quality, Documentation, CI&CD
* Experience in non-functional requirements (Scalability, Performance optimisation, Security)
* Experience is Linux development and AWS ecosystem tools


Desired Experience
3+ years
Job Description
What You’ll Do
- Design financial systems for scale. Measure, plan, iterate.
- Writing reusable, testable, and efficient code
- Design and implementation of low-latency, high-availability, and performant applications
- Setup and own the engineering architectures built around event sourcing, application sharding, database sharding, service communication mesh, etc.
- The tech: Go, Google Cloud Spanner, Kafka, Redis
What you bring to the table
- 3+ years of experience. Relevant experience is preferred.
- Knowledge of 2 common programming languages - Python & Go / Java & Node / Rust
- Comfortable in linux command line, AWS or GCP
- Strong unit test and debugging skills
- Great communication skills
Bonus if you have…
- Love building great products and engineering systems from scratch
- Are a Self-starter, Hustler and Curious to Learn
- Have an understanding of fundamental design principles behind a scalable application
- Thrive in an early-stage startup environment with less stability and more ambiguity
- Have an interest in financial products and/or cryptocurrency


POSITION: JAVA
EXPERIENCE: 3YRS-10YRS
LOCATION: BANGALORE
NOTICE PERIOD: IMMEDIATE JOINER/15 DAYS
WORK FROM OFFICE
JOB DESCRIPTION:
EXPERIENCE : 3 -10 YEARS EXPERIENCE IN JAVA
TECHNOLOGY/SKILLS : JAVA , HIBERNATE , MYSQL , MICROSERVICES, REST API
QUALIFICATION – B.E, B.TECH



- 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.
Requirements
- Experience in open source technologies - Solr, Redis, Kafka
- Exposure to building & managing applications in Amazon Webservices (AWS)
- Experience in security, scalability & performance aspects of solution
- Critical Skills: 1. Java / J2EE, Spring, PostGreSQL 2. Nginx, Tomcat 3. Developing REST webservices
Desired Skills and Experience

Responsibilities:
As a member of the development group, you will be primarily responsible for the design, development, and maintaining the product.
Work with the Product and Design teams to build new features to solve business problems and fill business needs.
Participate in code reviews to create robust and maintainable code.
Work in an agile environment where quick iterations and good feedback are a way of life.
Continually look for opportunities to improve our platform, process, and business.
Communicate and coordinate with our support and professional services teams to solve customer issues.
Help scale our platform as we expand.
Requirements:
8+ years of hands-on experience in enterprise software development using J2EE Framework.
Experience with React.js, AngularJS, strong knowledge of JavaScript, CSS, HTML5
Passion for building enterprise web applications leveraging modern architecture principles, strong prior experience as a full stack developer.
Expertise with CSS and building responsive pages, with a keen eye for UI design and usability
Experience with web-accessibility/WCAG standards
Experience working collaboratively with a globally distributed team.
Experience with agile methodologies and good exposure to DevOps/CICD models.
Passion for keeping up with new trends and developments in the programming community and is eager to find ways to incorporate these new ideas into our codebase.


