Back End Jr Java Microservices

We are looking for a Senior Backend Engineer with a strong background in building distributed, scalable, and high-performance backend systems. The ideal candidate has 6+ years of backend engineering experience, including 3+ years in microservices or distributed architecture, and deep expertise in Python, FastAPI, PostgreSQL, Redis, and async I/O patterns.

The candidate will own backend services end-to-end — from architecture and design to implementation, optimization, and production support — while working closely with cross-functional teams to deliver mission-critical systems.

Key Responsibilities

1. Backend Architecture & Development

• Architect, design, and implement backend services using Python (preferably FastAPI) with clean, maintainable, and scalable code.
• Develop microservice components, service communication layers, and distributed workflows.
• Build APIs and backend modules optimized for performance, fault tolerance, and low latency.

2. Distributed Systems & Scalability

• Design and maintain distributed systems capable of handling high throughput and large-scale operations.
• Implement inter-service communication patterns (REST, event-driven, message queues, pub/sub).
• Ensure system resiliency through redundancy, graceful degradation, and autoscaling strategies.

3. Asynchronous & Event-Driven Architecture

• Build async workflows, background tasks, and pipeline services leveraging asyncio or async frameworks.
• Develop event-driven components including producers, consumers, and event processors.
• Optimize I/O-heavy operations to maximize concurrency and throughput.

4. Data Storage, Pipelines & Caching

• Design relational schemas, write optimized SQL queries, and work with PostgreSQL performance tuning (indexes, partitions, query planning).
• Implement caching strategies, rate limiting, distributed locks, and session storage using Redis.
• Build data validation pipelines and compliance-driven data flows ensuring data correctness and auditability.

5. Security, Reliability & Observability

• Implement authentication, authorization, encryption, and secure API practices.
• Build monitoring, alerting, metrics, and tracing systems using modern observability tools.
• Diagnose production issues, identify bottlenecks, and drive long-term fixes and improvements.

6. Code Quality & Technical Leadership

• Conduct detailed code reviews and ensure engineering best practices across the team.
• Participate in technical roadmap planning, architectural discussions, and system design decisions.
• Mentor junior and mid-level engineers; drive a culture of technical excellence and ownership.

Required Qualifications

• 6+ years backend engineering experience.
• 3+ years building microservices or distributed systems.
• Strong expertise in Python and frameworks like FastAPI (or Flask/Django with async exposure).
• Deep understanding of async I/O, concurrency models, and asynchronous programming in Python.
• Strong experience with PostgreSQL (schema design, advanced queries, optimization).
• Hands-on experience with Redis for caching, queues, session management, and distributed patterns.
• Experience with event-driven architectures, message processing, or streaming systems.
• Solid understanding of system design, scalability principles, and API lifecycle management.
• Experience working with CI/CD pipelines, containerization (Docker), and cloud environments.

Key Responsibilities: 

• Minimum of 3 years of experience in Microservices architecture and Java, with a good understanding of design patterns and the Spring Boot framework, with the ability to collaborate effectively with team members and build positive working relationships.
• Design and build and deploy APIs to meet business requirements.
• High level of commitment to business satisfaction and agility.
• Strong work ethic and a passion for the role, with a positive attitude and a willingness to learn.
• Communicate effectively with the tech lead to thoroughly understand the requirements and highlight any blockers immediately.
• Handle programming and software development, including requirement gathering, bug fixing, testing, documenting, and implementation.
• Work in an agile environment to deliver high-quality solutions.
• Understand and implement Security, Logging, Auditing, Policy Management, and Performance Monitoring.
• Familiarity with relational databases (E.g.: Oracle), non-relational databases (E.g.: MongoDB), MSK Kafka, Docker, Kubernetes, and CICD Technologies (Jenkins, GitHub, Maven)

Qualification- Graduation: Bachelor of Science (B.Sc) / Bachelor of Technology (B.Tech) / Bachelor of Computer Applications (BCA)

Post-Graduation: Master of Science (M.Sc) /Master of Technology (M.Tech) / Master of Computer Applications (MCA)

Experience in Java

Experience in spring Boot

Experience in microservices

experience in Project management

Experience in leading team

Experience in customer facing

Experience in Product Management

A developer is responsible for several Java-related duties throughout the software development lifecycle, from concept and design to testing. The developer is required to create user information solutions through the development, implementation, and maintenance of Java-based components and interfaces.

Responsibilities:

• Take on complex problems that span multiple components and teams.

• Independently own one or more multiple modules, which include: requirement analysis, design, development, maintenance & support

• Write extensive, efficient code to address complex modules that handle the interaction between multiple components.

• Rapidly iterate to add new functionalities and solves complex problems with simple and intuitive solutions

• Produce architecture with clean interfaces, that are efficient and scalable

• Participate and contribute to architectural discussions

• Solve production issues. Investigate and provide solutions to minimize the business impact due to the outage

• Continuously improve performance metrics of modules you own.

• Collaborate effectively across teams to solve problems, execute and deliver results

Requirements:

• Experience: 3+ years

• A Bachelor's or Master's Degree in Computer Science

• Software engineering and product delivery experience, with a strong background in algorithms

• Experience in architecting & building real-time, large-scale e-commerce applications

• Experience with high-performance websites catering to millions of daily traffic is a plus

• Excellent command over Data Structures and Algorithms

• Experience with web technologies, Go/Java/Python

• Language: GO or Python

• Strong expertise in DS and Algo

• Strong leadership skills - have experience mentoring, building products from scratch or incumbent in design and architecture.

• Have worked in the scaling of the system right from scratch.

• Someone worked in small user base to a large user base and wrote optimized code

• Both HLD and LLD

Requirement :

• Good knowledge of Java and Spring F/W (Spring Boot, Spring Security, Spring ORM, Spring Rest, Spring Cloud)
• Good knowledge of relational database design and query via both SQL and ORM (hibernate, spring data)
• Good knowledge of ElasticSearch or other document-oriented database
• Good knowledge of Microservice architecture, including REST API design
• Good knowledge of asynchronous data pipelines using Kafka or AWS SNS/SQS or similar modern messaging framework
• Good knowledge of AWS or other public cloud environment
• Hands-on experience with Redis Cache, Memcache or Ehcache
• Good knowledge of domain-driven design is a huge plus
• Web services & API standards (REST/OAuth/JSON)

Company: Product based Industry in Gurgaon - with offices in CANADA

Backed by intelligence and research, we assist your business perfect a greater outreach on the right audience. We are , your partner in professional growth. Offering bespoke consulting across varied segments, Trancis’ assistance is sure to set your business apart and ahead of your competition. With strong beliefs in detailed work approach, Trancis leaves nothing to chance. Meticulously going through each and every aspect of your business, we ensure that you have a well-oiled, and smooth- running venture. Appropriate business planning, correct legal and financial consulting, the right technical assistance, and more, experience an all- dimensional cooperation at . Company which stands for omnidirectional Now we are the leading IT based Industry in Gurgaon - with offices in Delhi NCR, Canada and France.We are specialized in Web Development & Digital Marketing with a proven track record of developing successful online store.Our overall client rating is 4.9 out of 5

Online test -> Final tech round

Product based / service based company

Role - Sr. Software Engineer - Java

Employment Type - Full Time, Permanent

Exp. - 5+ Years

Joining time - Immediately

work from home permanently

Knowledge and Skills:

• Strong experience in Advance Java, Spring, 
• Enterprise-grade cloud applications on Java EE platforms
•  

• Hands-on experience in designing and developing high-performing, scalable,

• Object Oriented analysis and Design patterns.
• Run the simulator against it for verifying the baseline.
• Trigger scripts that need to get the logs from the server
• Profound insight of Java and JEE internals (Memory Management, Transaction management)
• Excellent knowledge of Relational Databases SQL and ORM technologies
• Experience in developing RESTful web services
• Good experience in Spring, Spring Boot, REST APIs, Protocol Buffers
• Solid experience in creating and deploying micro services is very important.
• Working knowledge with AWS Lamda, Dockers
• Good to Have Skills: Shell script, MySQL
• Creating database schemas that represent and support business processes
• Implementing automated testing platforms and unit test

Proficient understanding of code versioning tools, such as GIT

Familiarity with build tools such as Ant, Maven, and Gradle

Familiarity with continuous integration

Mandatory skills: Advanced Java, Sprint Boot

• A hands-on application developer who is passionate about Java development, building highly scalable and resilient applications, and focused on solving complex business problems
• He/She will have responsibility for unit-level design, coding, unit testing, integration testing, and participating in the full SDLC
• He/She will be expected to produce high-quality code that can pass critical peer review, and to work under a high-pressure and timeline-driven environment.
• Actively participate in development along with team members in creating modules & systems that can be treated as a working reflection of the best practices

Qualifications

• Bachelor’s degree or higher in Computer Science or Engineering equivalent
• Minimum of 3 years’ experience in Java development
• Responsible, organized and possess critical thinking with good interpersonal and communication skills
• Able to demonstrate good analytical problem-solving abilities and strong leadership aptitude
• Able to work at both abstract and detailed level
• Must be fluent in English, and strong communication skills.
• Motivated self-starter that likes to work as part of a team

Technical Requirements

• Strong experience in Core Java 8 and above, Collections and Data structures.
• Develop solutions using core java, Spring / Spring Boot, JSON, Rest API and other web technologies
• Hands on with UI development with strong experience in HTML5, JavaScript, CSS3, Responsive UIs. Added advantage for exposure to Angular. Knowledge on Liferay will be added advantage. Ability to design and develop UIs and end to end integration.
• Object oriented analysis and design using common design patterns
• Excellent knowledge of Relational Databases, SQL and ORM technologies (Hibernate and Mybatis)
• Strong knowledge of test-driven development and continuous integration
• Preference towards candidates having excellent Java multi-threading skills
• Passion for collaboration and working on agile teams
• Develop and Consume Web Services using REST.
• Enforcing and Writing code following good standards (well documented with good code coverage and properly tested code)