Java Developer

JobTitle : Mission Control Software Engineer – Java Backend

Experience : 4+ Years

Location : Bengaluru, Karnataka (On-site)

Employment Type : Full-time

Industry : Space Technology

🧠 Role Overview :

As a Mission Control Software Engineer – Java Backend, you will be a founding member of the Mission Control Software team. You will design and develop the backend core of a distributed, high-reliability system responsible for streaming, processing, and routing satellite data.

This role offers high ownership and the opportunity to directly influence system architecture as it evolves from a single-node deployment to a scalable multi-node system.

🛠️ Tech Stack :

Java 11+, gRPC, REST APIs, PostgreSQL, Docker, Linux, WebSockets, Git, CI/CD

⚙️ Key Responsibilities :

• Design, develop, and maintain backend services in Java (11+) for data ingestion, processing, and control workflows
• Build and enhance gRPC and REST APIs for internal and external system integrations
• Develop modular plugins and middleware for routing, persistence, and automation
• Work with PostgreSQL and other databases for structured and time-series data
• Collaborate with frontend teams to support real-time dashboards via WebSockets/event streaming
• Ensure system scalability, reliability, and observability through logging, metrics, and testing
• Contribute to containerized deployments (Docker) and CI/CD pipelines
• Write clean, maintainable, and well-documented code with strong test coverage

🧩 Required Skills & Experience :

• 4+ years of experience in backend or distributed systems development.
• Strong proficiency in Java (11+), including concurrency and networking concepts.
• Experience with frameworks like Spring Boot, Vert.x, or similar.
• Hands-on experience with gRPC and REST API design.
• Strong knowledge of SQL databases (PostgreSQL preferred) and schema design.
• Experience working in Linux environments, with Git and Docker.
• Familiarity with event-driven systems / messaging queues (Kafka, RabbitMQ, MQTT, etc.).
• Ability to design scalable architectures and write automated tests.

⭐ Good to Have :

• Experience with real-time systems, telemetry, IoT, or satellite systems
• Exposure to distributed systems / microservices / high-availability architectures
• Working knowledge of Python for scripting or integrations
• Experience with monitoring tools like Prometheus and Grafana
• Interest in hardware-software integrated systems

Profile : Java Developer

Experience : 3+ Years

Location : Pune (Viman Nagar)

Mode : 5 Days WFO

(Only immediate joiners & candidates serving notice period)

Roles :

- Java Application Developer

- Microservices Architect

- API Developer

- Code Reviewer

- Technical Problem Solver

- Database Integration Specialist

- Team Collaborator

Responsibilities :

- Design, develop, and maintain Java-based applications using Spring Boot

- Build and deploy microservices architecture following best practices

- Develop RESTful APIs and web services for integration

- Write clean, efficient, and well-documented code

- Implement design patterns for scalable solutions

- Work with databases (MySQL, PostgreSQL) for data management

- Perform comprehensive code reviews and testing

- Collaborate with cross-functional teams (Frontend, QA, DevOps)

- Participate in Agile/Scrum development processes

- Translate business requirements into technical solutions

- Troubleshoot and debug complex application issues

- Follow CI/CD practices for smooth deployment

- Monitor and optimize application performance

Location & Work Model:

• Position: Contract to hire
• Bangalore -  Marathahalli; 
• Work mode - Work from Office; all 5 days
• Looking for immediate joiners

Technical Requirements:

• Strong experience in Java Backend Development
• Proficiency in both SQL & NoSQL databases (e.g., MongoDB, PostgreSQL, MySQL)
• Basic knowledge of DevOps tools (CI/CD pipeline)
• Familiarity with cloud providers (AWS, GCP)
• Ability to quickly learn and adapt to emerging technologies, including AI-driven tools, and automation solutions
• Strong problem-solving mindset with an interest in leveraging AI and data-driven approaches for backend optimizations

Soft Skills & Mindset:

• Strong communication & articulation skills
• Structured thought process and a logical approach to problem-solving
• Interest & willingness to learn and adapt to new technologies

• Strong experience in Core Java, Multi-Threading, data structures (List/Map/Set) and unit testing
• with (Junit, Mockito)
•  Strong experience with Spring Framework (Spring MVC, Spring REST, Spring Data), ORM
• frameworks (JPA, Hibernate) and RDBMS (Oracle/MySQL/Postgres)
•  Strong experience in applying Object-Oriented design principles and Design Patterns
•  Good knowledge of Multi-Tier architecture, Micro Services architecture and Service Oriented
• Architecture 
•  Exposure to AWS Cloud, NoSQL Database (Mongo, Cassandra), Message Broker (Active
• MQ/RabbitMQ/Apache Kafka) and Big Data Technologies (Hadoop/Hive/Spark)
•  Additionally, must possess capability to review code, produce technical specification document
• and knowledge of code quality tools (PMD/FindBugs/Sonar)

About the role:

As a team member at TrusTrace, you’ll get to solve challenging, real-world problems that truly make a difference to society.

As a Product Developer at TrusTrace, you’ll get to solve challenging and real-time problems using cutting edge technologies. You get to work with industry thought leaders and big-name brands. You will work with the product team to materialize the requirements into pieces of user stories and priorities. You will get hands-on experience in polyglot programming to build solutions and write tests to ensure quality code. (We primarily work on Java, typescript/node, and golang). If you build it, you will own it, i.e . you will be generating metrics, track improvements, and bug fixes for features that are built and shipped by you.

Experience & Skills: (3 – 6 Years) The successful candidate will have

• Passion for problem-solving.
• Flexibility to multitask and re-priorities when necessary.
• Ability to work in an agile and customer-eccentric team.
• Open to learning new technologies.
• Prior saas/start-up experience is preferable, but not mandatory.
• Hands-on experience in back-end technologies and have a strong understanding of core data structure and design patterns.
• Commanding knowledge in HLD/LLD
• Basics of system design and distributed systems
• Strong fundamentals in frameworks like Spring MVC, Spring Security, Spring Data, and Spring-boot.
• Sound knowledge in Java and JVM ecosystem.
• Write the production-grade test code. Junit/ TestNG
• Proficiency with Rest API performance and OpenAPI standards.
• Experience in building cache layers and invalidate them properly ;-)
• Strong knowledge of NoSQL(Mongo) database.
• Experience with Elastic search or Solr is preferred.
• Basics understanding of cloud infrastructures (Preferably AWS) and CI/CD pipelines.
• Should have startup/product Experience

Educational Qualification : Preferably from CS/Circuit Background

About Us

Rezo.ai is an AI-Powered Contact Center that enables enterprises to enhance customer experience and boost revenue by automating and analyzing customer agent interactions across multiple channels including voice, email, chat/WhatsApp, and social, at the required scale, whilst training agents with minimal costs

How do we do it

Rezo’s AI-Powered contact center leverages groundbreaking technologies in AI, ML, ASR, NLP, RPA, and predictive intelligence to transform customer experience and reduce costs by automating, and analyzing customer-agent conversations across multiple channels including voice, email, chat/Whatsapp, and social media, whilst coaching them. 

What Makes You A Good Fit :

• You are passionate about technology and software development
• You are continuously experimenting and learning more
• You love solving problems and digging into complex problems
• You believe in taking decisions as close to the product and technical expertise as possible.
• You believe in creativity, trying new things and learning from your mistakes.
• You believe in sharing insights and helping one another to build an even better user plan.

Key Skills Required:

• 3-8 years of Experience in Java Product Development.
• Good understanding of MYSQL.
• Practitioner of clean code and SOLID principles
• Exposure to GIT and Maven
• Good verbal and written communication skills
• Understands different major language paradigms (Object Oriented and Functional)
• Understanding and Experience with Multi-Threaded Applications
• Prior Experience in a SAAS Product company is a Plus 
• Experience with Managing Team is a plus

Educational Background:

• Bachelor's/Master’s degree in Computer Science Engineering from Tier 1 College is a Plus.

Why You Should Join Rezo.AI

• You will be surrounded by Passionate Team Members with Exposure to Product Building
• You will be learning About various Product Development Cycles
• Big Career Opportunities
• Learning by doing
• The Opportunity of Innovation
• Recognition
• Enhanced Responsibility and Team Management

Cultural fitment 

Work at the heart of AI and customer engagement.

If you are fascinated by AI and looking to work with the latest AI technologies, in a fast growing and flexible work environment with immense growth opportunities, come and join us.

Rezo is the place to be if you want to work in an atmosphere where you can do meaningful research, contribute to the platform, and grow fast.

Culture/Values

We believe that allowing employees to pursue their interests and challenge the existing quo only helps to make Rezo a successful workplace. To that end, we are committed to assisting our employees in enhancing the skills that are vital to their professional growth.

FOCUS, INTEGRITY, TEAMWORK, PASSION, INNOVATION

Why Us?

We are a fast-paced start-up with some of the best talents from diverse backgrounds. Working together to solve customer service problems. We believe a diverse workforce is a powerful multiplier of innovation and growth, which is key to providing our clients with the best possible service and our employees with the best possible career. Diversity makes us smarter, more competitive, and more innovative.

Visit our website: https://rezo.ai/">https://rezo.ai/ for more information

Developer – Golang 

Responsibilities: 

• An individual contributor who will be part of the Software R&D team working on the following areas 

• Backend work in Golang, Micro services architecture 

• Work with internal team and customers to deliver solutions that will meet the customer needs with respect to the performance security, scalability and functionality. 

• Implementation of API and authentication methods using JWT 

• Writing scalable, robust, testable, efficient, and easily maintainable code 

• Translating software requirements into stable, working, high performance software 

Skills 

• 2-5 years of experience in Go programming language 

• Strong experience in working with Goroutine and channel patterns 

• Experience in Go framework for DB, JSON, Sockets, Web Frameworks and tools 

• Knowledge of logging and configuration packages like Zap, Viper 

• Experience in writing unit tests for Golang code 

• Familiarity with code versioning tools such as Git or Azure Repo 

• Should have knowledge of MySQL, PostgreSQL, or any RDBMS 

• Good knowledge of Linux / Ubuntu 

Job Summary

Require a java developer having 2+ years of experience especially in Spring and Hibernate

Job Type: Full-time
Responsibilities and Duties
Java developer responsibilities include designing and developing high-volume, low-latency applications for mission-critical systems and delivering high-availability and performance
- Contribute in all phases of the development lifecycle
- Write well designed, testable, efficient code
- Ensure designs are in compliance with specifications
- Prepare and produce releases of software components
- Support continuous improvement by investigating alternatives and technologies and presenting these for architectural review
Key Skills
JEE, JPA2 , Hibernate
Required Experience and Qualifications
Proven hands-on Software Development experience
- Proven working experience in Java development
- Hands on experience in designing and developing applications using Java EE platforms
- Object Oriented analysis and design using common design patterns.
- Profound insight of Java and JEE internals (Classloading, Memory Management, Transaction management etc)
- Excellent knowledge of Relational Databases, SQL and ORM technologies (JPA2, Hibernate)
- Experience in the Spring Framework
- Experience in developing web applications using at least one popular web framework (JSF, Wicket, GWT, Spring MVC)
- Experience with test-driven development
Job Type: Full-time