Java Developer- Freelancing Consultant · Remote only · 2 - 14 years · ₹15L - ₹45L / yr · Remote only · Posted 27 Jul 2022

Java Developer- Freelancing Consultant
- Bachelor's degree in Computer Science or a related field with 2-5 years hands-on experience with Java based open source tech stack
- Expertise in Core Java, Data Structures, J2EE with proven expertise in Spring MVC, Spring boot, Microservices architecture, Web Services (Rest) in distributed systems
- Practical experience with MySQL and /or NoSQL databases like Couchbase, DynamoDB, Cassandra
- Practical experience with Caching frameworks Memcached/Redis, Message Queues (JMS, RabbitMQ)
- Practical hands-on experience in JavaScript UI preferred
- Experience in building high performance, high availability REST APIs and REST clients
- Expertise with log file analysis using one or more of ELK, or Splunk
- Prior experience with CI/CD, Container architecture - Docker/Jenkins and build scripts Maven/Ant
- Prior experience in transformation to cloud platforms is preferred
- Experience with Kafka is a definite plus
- Experience with building analytics pipeline and analytics DB is a plus
- Strong practical experience in applying design patterns, multithreading concepts to solve complex problems, strong problem solving skills

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Must Have:
● Experience in Java or Core Java (7+ years)
● Experience in SpringBoot (4+years)
● Good Knowledge of Microservice, Multithreading, design pattern Concept
● Framework: SpringBoot, Spring Security, JAX-RS, Hystrix, Kafka
● ORM: Spring Data JPA. Hibernate
● Cloud Service: AWS(MSK, S3), Serverless lambda Functions
● Build tools: Maven, Gradle
● Good To Have: Spring Webflux, Web Client, ecommerce domain experience.
Required Skillset
• Experience in Core Java 1.8 and above, Data Structures, OOPS, Multithreading, Algorithms, Collections, System Design, Unix/Linux. • 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. • Good knowledge of multi-threading and high-volume server-side development. • 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 Brief-
• Understand product requirements and come up with solution approaches. • Build and enhance large scale domain centric applications. • Deploy high quality deliverables into production adhering to the security, compliance and SDLC guidelines.
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
Designation: Java Back End Developer
- Strong in Java , Spring Boot, ver.x (Microservices)
- 5+ year’s software engineering experience working with large scale applications and projects.
- Knowledge of best practice software development methodologies and coding standards.
- General knowledge of public cloud infrastructure and data solutions (e.g. AWS)
- Broad experience designing and developing scalable, resilient, performant applications:
- Distributed systems
- Microservices design and implementation
- Experience working on, and deploying, large scale systems in Java
- Experience with relational DBs like MySQL, SQL Server or Oracle.
Responsibilities:
Develop and maintain high-quality, scalable, and efficient Java codebase for our ad-serving platform.
Collaborate with cross-functional teams including product managers, designers, and other developers to
understand requirements and translate them into technical solutions.
Design and implement new features and functionalities in the ad-serving system, focusing on performance
optimization and reliability.
Troubleshoot and debug complex issues in the ad server environment, providing timely resolutions to ensure
uninterrupted service.
Conduct code reviews, provide constructive feedback, and enforce coding best practices to maintain code quality
and consistency across the platform.
Stay updated with emerging technologies and industry trends in ad serving and digital advertising, and integrate
relevant innovations into our platform.
Work closely with DevOps and infrastructure teams to deploy and maintain the ad-serving platform in a cloud- based environment.
Collaborate with stakeholders to gather requirements, define technical specifications, and estimate development
efforts for new projects and features.
Mentor junior developers, sharing knowledge and best practices to foster a culture of continuous learning and
improvement within the development team.
Participate in on-call rotations and provide support for production issues as needed, ensuring maximum uptime
and reliability of the ad-serving platform.
A Fintech start up company that bridges the gap between the digital payments
and the micro-retailing industry of the market. A nexus for the B2B sector providing multi-utility services via an Android app, enabling the micro-retailers across India to revolutionize their business and thus providing them with an opportunity to generate more revenue by offering multiple micropayment and digital services at their offline store. We intend to leverage the mode of smartphone technology in the rural and urban markets across India, thus empowering micro-retailers and creating a sustainable self-employment for this segment.
Overall Competencies:
1. Tech Depth/Breadth/Problem Solving.
2. Design & Architecture (Code/Design review).
3. Team Management.
Leadership Competency:
- Managing & mentoring a team.
- Ability to deliver projects/sprints on time.
- Obsessed with quality: Design reviews, code reviews, testing (system/performance).
- Spending at least 50% time with hands-on coding while doing the above Programming.
Tech Competency:
- Hands-on with Python/Django/Flask.
- Knowledge of PHP & Laravel is a plus.
- Experience with any JavaScript framework (Angular / React ).
- Prior experience in micro-services based architecture.
- Good understanding of SQL (MySQL, Postgres, or similar).
- Good understanding of one no-SQL (MongoDB / DynamoDB etc).
- Comfortable producing and refactoring code without assistance.
- Can reason about the complexity of algorithms (time and space).
- Basic CI/CD and DevOps.
- Experience in Docker & Kubernetes.
- Design, QA, and Infrastructure.
- Knowledge of design patterns and cloud scaling.
- AWS & GCP experience. AWS is mandatory.
- Understands BDD/TDD/Performance/Security/Smoke testing/Unit Testing
- Understands REST principles and Microservices
- Understands version control & branching strategies
- Understands application security fundamentals and potential security risks
Education: Bachelors in Computer Science|
java,J2EE,Hibernate,spring,
be further responsible for designing and implementing product requirements that are highly usable, scalable, extensible, and maintainable.
The Treez enterprise-grade, business management platform serves the vertical cannabis market from producers to brands to retailers with our Point of Sale, Integrated Payments, Branding, Grow, and Data Insights
software solutions. Treez is helping businesses deliver personalized and efficient experiences to their customers. The Treez enterprise business management solution is delivered through a Software-as-a-Service
(SaaS) model on a modern, scalable cloud infrastructure.
To learn more, visit Treez at: https://treez.io/
Roles & Responsibilities:
We are looking to hire a senior backend engineer. This is a role with significant responsibility for ensuring the successful delivery of our core fintech product suite. You will be working with other
backend engineers and system design architects on the team to launch and successfully ship our new fintech suite of products.
This role involves working closely with internal and external stakeholders and creating processes around overall product success.
Your responsibilities will include:
● Reviewing and analyzing business requirements and providing technical feasibility and estimates.
● Practicing standard development processes leveraging agile methodologies such as SCRUM and
TDD.
● Maintain high standards of quality for code, documentation, and other deliverables.
● Ensure business needs with automated tests.
● Checking code from other developers and mentoring junior team members.
To achieve the above, here’s what you’ll need to do:
● At least 7+ years of experience in software development with a track record of shipping large,
cross-functional projects in high-performance and scalable environments.
● 4+ years of experience developing in Python and its associated technology stacks.
● Working knowledge of SQL databases and other NoSQL solutions.
● Proficient with algorithms and data structures, design patterns, service-oriented architecture, domain-driven design, multithreading, concurrency, caching, and distributed systems.
● Deep understanding of multi-process (define, design, and create) cloud architecture projects and the threading limitations of Python.
● Solid understanding of the complete software development life cycle, including the post-production deployment phase.
● Extensive experience in Agile/Scrum teams and CI/CD applications built with microservices and event-based architectures.
● Experience in adopting test-driven development.
You’re right for this role if you have:
● BE/B.Tech/BS in Computer Science, Engineering, or relevant field.
● Experience working with Typescript and React is a huge plus.
● Prior experience building a product from ideation to launch.
● Deep understanding of, and passion for, fintech for an underserved industry.
● Strong problem-solving and verbal and written communication skills.
● Experience in OOP/functional coding.
Perks:
● Opportunity to work & learn with an International team
● Health Insurance
● 5 days working
● ESOPs
● Performance Bonuses
● Competitive Salary package
● Wonderful work culture focusing on providing work-life balance
● In-house professional development
This is a fantastic opportunity for a talented and motivated individual to combine business understanding, and product management expertise. We believe that no other position in a Series C startup typically offers
this much flexibility and potential for growth. This role is based in Bangalore, India. The role involves coming into the office in Koramangala, Bangalore 3 times a week in the initial 2 quarters and can then transition to less in-office time, depending on the individual.
Treez is an equal-opportunity employer. We thrive on diversity and are committed to creating an inclusive
environment for all employees.
*Performs analysis of functional and business requirements
*Applies in-depth or broad technical knowledge to maintain data engineering functions performs solution design.
*Applies the company, open source, and 3rd party technologies to highly complex infrastructure and software solutions.
*Introduce new product features and enhance the platform
*Ability to translate business reporting requirements into a production report.
Job description
We are looking for a passionate Software Development Engineer to develop, test, maintain and document program code in accordance with user requirements and system technical specifications. As a Software Development Engineer, you will work with other Developers and Product Managers throughout the software development life cycle.
Software Development Engineer responsibilities include analysing requirements, define system functionality and writing code in the companys current technology stack. The candidate is expected to be familiar with the software development life cycle (SDLC) process from preliminary system analysis to tests and deployment. Ultimately, the role of the Software Engineer is to build high-quality, innovative and fully performing software that complies with coding standards and technical design. Your goal will be to build efficient programs and systems that serve user needs.
To be qualified for this role, you should hold a minimum of Bachelor’s degree in a relevant field, like Computer Science, IT or Software Engineering. You should be a team player with a keen eye for detailed and problem-solving skills. If you also have experience in SDLC, Agile frameworks and popular coding languages (e.g., Java), strong computer science fundamentals we’d like to meet you.
Years of experience : 2 to 10 years.
Roles & Responsibilities
The overview of this position (based in Chennai, India) includes:
- Develops, enhances, debugs, supports, maintains and tests software applications that support business units or supporting functions. These application program solutions may involve diverse development platforms, software, hardware, technologies and tools.
- Participates in the design, development and implementation of complex applications, often using new technologies.
- Technology professional with experience in designing and managing the implementation of future looking, flexible and reusable, enterprise applications and components.
- Expert in translating business requirements into an application design that includes Data Model, Web Screens, Web Services, and batch processing.
- May provide technical direction and system architecture for individual initiatives.
- Serves as a fully seasoned/proficient technical resource.
- Deploy programs, gather and evaluate user feedback
- Recommend and execute improvements
- Create technical documentation for reference and reporting
- Develop software verification plans and quality assurance procedures
- Document and maintain software functionality
- Ensure software is updated with latest features
- Good interpersonal and technology understanding skills
- Evaluate open-source components and integrate into product pipeline
Skills and Qualifications
- Hands-on experience in analysis, design, coding, and implementation of complex, custom-built applications.
- Strong Java, development skills (JAVA, J2EE, STRUTS, SPRING, Web Services, Eclipse, UI screens, AngularJS, React.JS)
- Excellent debugging skills
- Strong knowledge on databases (MySQL, MSSQL Server and NoSQL databases)
- Understanding of various deployment servers (Apache Tomcat is a must)
- Understanding of OO skills, including strong design patterns knowledge is a must.
- Strong understanding in creating and maintaining web services.
- Understanding of the software development life cycle
- Experience with Implementation and release management activities
- Good understanding of unit/system and functional testing methodology
- Experience working in large transaction-based systems
- Knowledge of software best practices, like Test-Driven Development (TDD) and Continuous Integration (CI)
- Experience documenting technical functions
- Desire to contribute to the wider technical community through collaboration, coaching, and mentoring of other technologists.
- Experience in Linux based systems, development of shell-based scripts.
Job Training
- Training on the coding paradigms, guidelines, frameworks, usage of the applications would be provided by the engineers
- Periodic training sessions would be conducted by the technical architects in terms of technology and skills to be learnt
- Periodic, structured training would be provided on the applications Hours & Environment
- Typical 40 hours of work a week
- Depending on the requirements, work hours may have to be extended during the day, weekend










