Java Developer with Data structures and Algorithms

Job Description:

• Experience in Core Java, Spring Boot.

• Experience in microservices.

• Extensive experience in developing enterprise-scale systems for global organization. Should possess good architectural knowledge and be aware of enterprise application design patterns.

• Should be able to analyze, design, develop and test complex, low-latency client-facing applications.

• Good development experience with RDBMS in SQL Server, Postgres, Oracle or DB2

• Good knowledge of multi-threading

• Basic working knowledge of Unix/Linux

• Excellent problem solving and coding skills in Java

• Strong interpersonal, communication and analytical skills.

• Should be able to express their design ideas and thoughts. 

Job description

🔧 Key Responsibilities:

• Design and implement robust backend services using Node.js.
• Develop and maintain RESTful APIs to support front-end applications and third-party integrations
• Manage and optimize SQL/NoSQL databases (e.g., PostgreSQL, MongoDB, Snowflake)
• Collaborate with front-end developers to ensure seamless integration and data flow
• Implement caching, logging, and monitoring strategies for performance and reliability
• Ensure application security, scalability, and maintainability
• Participate in code reviews, architecture discussions, and agile ceremonies

✅ Required Skills:

• Proficiency in backend programming languages (Node.js, Java, .NET Core)
• Experience with API development and tools like Postman, Swagger
• Strong understanding of database design and query optimization
• Familiarity with microservices architecture and containerization (Docker, Kubernetes)
• Knowledge of cloud platforms (Azure, AWS) and CI/CD pipelines.

About Unilog

Unilog is the only connected product content and eCommerce provider serving the Wholesale Distribution, Manufacturing, and Specialty Retail industries. Our flagship CX1 Platform is at the center of some of the most successful digital transformations in North America. CX1 Platform’s syndicated product content, integrated eCommerce storefront, and automated PIM tool simplify our customers' path to success in the digital marketplace.

With more than 500 customers, Unilog is uniquely positioned as the leader in eCommerce and product content for Wholesale Distribution, Manufacturing, and Specialty Retail.

Unilog’s Mission Statement

At Unilog, our mission is to provide purpose-built connected product content and eCommerce solutions that empower our customers to succeed in the face of intense competition. By virtue of living our mission, we are able to transform the way Wholesale Distributors, Manufacturers, and Specialty Retailers go to market. We help our customers extend a digital version of their business and accelerate their growth.

Job Details

• Designation: Principal Engineer – Solr
• Location: Bangalore / Mysore / Remote
• Job Type: Full-time
• Department: Software R&D

Job Summary

We are seeking a highly skilled and experienced Principal Engineer with a strong background in Apache Solr and Java to lead our Engineering and customer-led initiatives. The ideal candidate will be responsible for ensuring the reliability, scalability, and performance of our search platform while providing expert-level troubleshooting and resolution for critical production issues.

This role will involve designing the architecture for new platforms while reviewing and recommending better approaches for existing ones to drive continuous improvement and efficiency.

Key Responsibilities

• Lead Engineering and support activities for Solr-based search applications, ensuring minimal downtime and optimal performance
• Design and develop the architecture of new platforms while reviewing and recommending better approaches for existing ones
• Regularly work towards enhancing search ranking, query understanding, and retrieval effectiveness
• Diagnose, troubleshoot, and resolve complex technical issues in Solr, Java-based applications, and supporting infrastructure
• Perform deep-dive analysis of logs, performance metrics, and alerts to proactively prevent incidents
• Optimize Solr indexes, queries, and configurations to enhance search performance and reliability
• Work closely with development, operations, and business teams to drive improvements in system stability and efficiency
• Implement monitoring tools, dashboards, and alerting mechanisms to enhance observability and proactive issue detection
• Exposure to AI-based search using vector databases, RAG models, NLP, and LLMs
• Collaborate on capacity planning, system scaling, and disaster recovery strategies for mission-critical search systems
• Provide mentorship and technical guidance to junior engineers and support teams
• Drive innovation by tracking latest trends, emerging technologies, and best practices in AI-based Search, Solr, and other search platforms

Requirement

• 8+ years of experience in software development and production support with a focus on Apache Solr, Java, and databases (Oracle, MySQL, PostgreSQL, etc.)
• Strong understanding of Solr indexing, query execution, schema design, configuration, and tuning
• Experience in designing and implementing scalable system architectures for search platforms
• Proven ability to review and assess existing platform architectures, identifying areas for improvement and recommending better approaches
• Proficiency in Java, Spring Boot, and micro-services architectures
• Experience with Linux / Unix-based environments, shell scripting, and debugging production systems
• Hands-on experience with monitoring tools (e.g., Prometheus, Grafana, Splunk, ELK Stack) and log analysis
• Expertise in troubleshooting performance issues related to Solr, JVM tuning, and memory management
• Familiarity with cloud platforms such as AWS, Azure, or GCP and containerization technologies like Docker / Kubernetes
• Strong analytical and problem-solving skills, with the ability to work under pressure in a fast-paced environment
• Certifications in Solr, Java, or cloud technologies
• Excellent communication and leadership abilities

About Our Benefits

• Competitive salary
• Health insurance
• Retirement plan
• Paid time off
• Training and development opportunities

• Developing Simple to Complex Functionality for Websites and Applications
• Write reusable code preferably using classes and libraries.
• Programming databases specially MySQL.
• Establishing projects from scratch or working on accessible projects
• Developing front-end and back-end applications.
• Take on multiple projects varying in size and complexity.
• Manage projects on AWS and other servers.

• Bachelor degree in Computer Science, Software Engineering or related discipline.
• 1 to 3 years of experience developing eCommerce web applications.
• Should be technically sound in OOPs Concepts.
• Programming databases specially MySQL/PostgreSQL.
• Knowledge of server side technologies like PHP 7/8, NodeJS, NUXT.
• Knowledge of client side technologies like Javascript, JQuery, VueJS.
• Experience in MVC Framework, especially laravel.
• Basic knowledge of HTML5, CSS, XML, JSON.
• Good command on PostgreSQL database and its optimization techniques.
• Exposure to database transactions, stored procedures and triggers.
• Experience working with third-party APIs and developing web services using REST/GRPC.
• Experience with SCM tools like svn/git.
• Ability to adapt and pick up new techniques and technology.
• Knowledge of web security and vulnerabilities.
• Ability to prioritize the work and multi-tasking.
• Excellent communication skills & self-motivated

We are seeking extremely smart & independent senior developers who are gung ho about building large scale systems that are going to have a big impact on millions of customers. You will:

Responsibilities:

• Lead design and development of products working closely with business team.
• Independently own software components and co-own entire applications with a small group of fellow developers.
• Formally mentor junior software engineers on the team, reviewing design documents, (peer) reviewing code, providing design direction and guidance.
• Build performant, scalable, yet secure, enterprise ready back end architectures that can support millions of users in parallel.
• Establish strong engineering best practices and champion their adoption.

Requirements:

• 4+ years' experience in software product development and delivery.
• Bachelors or Masters degree in engineering (preferably computer science or sister branches) from a reputed institute (preferably IITs, NITs, or other top engineering institutes).
• Strong grasp of CS fundamentals, algorithms and excellent problem-solving abilities.
• All experience should be from good product development or e-commerce background.
• Able to take ownership of working with at least one of mobile or web app teams for complete integration with backend.
• Must have shown good stability in all your previous associations.
• Have strong backend knowledge and cloud development exposure.
• Proficiency in Java, Spring boot, Hibernate, REST API development.
• Worked with at least 1 RDBMS (Mysql preferred).
• NoSql is a plus.
• Have used or are very hands-on with Microservices, Docker, Kubernetes, Gradle/Ant, Kafka, GIT/bitbucket in a very agile work place.
• Writing high quality code which is made better by unit tests and integration tests is how you work.
• Comfortable with exploring proven open source tech stack like Grafana, Kibana, Jira, Prometheus, caches like Redis/Memcached, task queues like celery, to name a few.
• Knowledge of test driven development and AWS tech stack will be a good plus.

Core Responsibilities:

• Design and build solutions for complex business workflows
• Understanding the user persona and deliver a slick experience
• Take end to end ownership of components and be responsible for the subsystems that you work on from
• design, code, testing, integration, deployment, enhancements, etc.
• Write high-quality code and taking responsibility for their task
• Solve performance bottlenecks
• Mentor junior engineers
• Deliver with quality, on-time in a fast-paced start-up environment

Required Skills:

• Bachelor/Master's in computer science or relevant fields
• 4+ years of relevant experience
• Strong sense of ownership
• Excellent Java and object-oriented development skills
• Experience in building and scaling microservices
• Strong problem-solving skills, technical troubleshooting and diagnosing
• Expected to be a role model for young engineers, have a strong sense of code quality and enforce code
• quality within the team
• Strong knowledge in RDBMS and NOSQL technologies
• Experience in developing backends for enterprise systems like eCommerce / manufacturing / supply chain etc
• Excellent understanding of Debugging performance and optimization techniques
• Experience in Java, Mongo, MySQL, AWS technologies, ELK stack, Spring boot, Kafka
• Experience in developing any large scale Experience in cloud technologies
• Demonstrated ability to deliver in a fast-paced environment

Preferred Skills: 

We want to really emphasize Spring Boot (2+ years although 1+ if candidate particularly strong) Using Redis as a caching technology with Spring Boot would be a strong plus 

Using Redisson (a particular java client library that can be easily configured with Spring Boot) would be a strong plus 

Knowledge of event based messaging systems (Amazon SNS, Amazon MQ, or Kafka (in AWS) Data Cleaning tools and techniques in CSV and Excel 

Strong Knowledge of Spring Boot Dependency Injection and Configuration 

Experience with APIs for popular e-commerce platforms (Magento, Shopify, Big Commerce, etc.) 

SDLC (Software Development Lifecycle) Tools in the context of AWS. (Tools classified under DevOps) 

Experience with managing AWS EC2 VM instances and using AWS managed Services (like S3, MySQL, VPC/Networking, Lambda, etc) 

Performance Analysis Tools (Code Profiling) on Java VM and particularly Spring Boot 

Nice to Have: 

Experience with Cassandra or MongoDB with Spring Boot 

Horizontal Scaling with Spring Boot (considerations running multiple instances of Spring Boot instances) 

Experience with placing Spring Boot applications in Docker/Kubernetes container ecosystems (especially in AWS)