Senior Java Developer

Job Title: Senior Java Architect (12+ Years Experience)

Location: Remote (2 PM - 11 PM IST)

Experience: 12+ Years

Salary: ₹15L - ₹21L/yr

Employment Type: Contract (1 Year Extendable)

Job Description:

We are looking for a highly experienced Java Architect to join our team on a long-term contract basis. The ideal candidate should have deep expertise in designing scalable enterprise applications using Java and microservices architecture. The candidate should be capable of driving architecture decisions, mentoring development teams, and delivering high-performance solutions for enterprise-grade systems.

Key Responsibilities:

• Design and architect scalable enterprise applications using Java and microservices
• Lead system design and architecture decisions for complex applications
• Develop and implement microservices architecture patterns
• Drive technical architecture across multiple development teams
• Mentor and guide senior developers and engineering teams
• Handle high-traffic, scalable enterprise application architecture
• Collaborate with stakeholders to define technical requirements and roadmaps
• Ensure system performance, scalability, and reliability
• Review code and architecture designs for best practices
• Work with Spring Boot, Spring Cloud, and modern Java frameworks

Required Skills & Qualifications:

• 12+ years of hands-on experience in Java development and architecture
• Strong expertise in microservices architecture and design patterns
• Deep knowledge of system design principles and enterprise architecture
• Hands-on experience with Spring Boot and Spring Cloud
• Experience designing scalable, high-performance enterprise applications
• Proficiency in RESTful APIs, messaging systems, and API gateways
• Strong understanding of cloud platforms (AWS, Azure, or GCP)
• Experience with containerization (Docker) and orchestration (Kubernetes)
• Knowledge of database design (SQL and NoSQL)
• Expertise in JVM tuning and performance optimization

Technical Skills:

• Java 11+ (Java 17/21 preferred)
• Spring Boot, Spring Cloud, Spring Security
• Microservices architecture and design patterns
• RESTful APIs, GraphQL, gRPC
• Apache Kafka, RabbitMQ, or similar messaging systems
• Docker, Kubernetes, CI/CD pipelines
• PostgreSQL, MySQL, MongoDB, or similar databases
• Redis, Elasticsearch, or caching solutions
• Maven, Gradle, Git

Additional Requirements:

• Ability to work 2 PM - 11 PM IST (US/Europe Shift Timing)
• Immediate availability or short notice period (15 days max)
• Strong problem-solving and analytical skills
• Excellent communication skills for stakeholder collaboration
• Experience mentoring technical teams
• Contract commitment for a minimum of 1 year (extendable)

Good to Have (Preferred Skills):

• Experience with reactive programming (WebFlux, Project Reactor)
• Cloud certification (AWS Solutions Architect, etc.)
• Experience with observability tools (Prometheus, Grafana)
• Knowledge of domain-driven design (DDD)
• Experience with multi-cloud or hybrid cloud architectures
• Freelance/contract experience (preferred)

What We Offer:

• 1.2 ~ 1.8 LPM fixed contract salary
• Long-term contract (1-year extendable)
• Remote work with a flexible 2-11 PM IST schedule
• Work with cutting-edge enterprise technologies
• Opportunity to architect large-scale systems
• Collaborate with experienced engineering teams
• Immediate start for the right candidates

Mactores is a trusted leader among businesses in providing modern data platform solutions. Since 2008, Mactores have been enabling businesses to accelerate their value through automation by providing End-to-End Data Solutions that are automated, agile, and secure. We collaborate with customers to strategize, navigate, and accelerate an ideal path forward with a digital transformation via assessments, migration, or modernization.

Mactores is looking for a Software Engineer with proficiency in Java, Spring, and Hibernate to participate in the migration project from Oracle to PostgreSQL. The ideal candidate should possess a robust understanding of Java, Spring, and Hibernate, with hands-on experience in developing large-scale Java web applications.

What you will do?

• Analyze and remediate large enterprise Java codebases to replace legacy or database-specific SQL constructs with modern, standards-compliant SQL.
• Convert embedded SQL within Java services and MyBatis XML mappers, including rewriting constructs such as vendor-specific functions, sequences, pagination logic, dynamic SQL, and error-handling patterns.
• Collaborate closely with schema and database migration engineers to ensure application-layer SQL aligns with the modernized target schema.
• Refactor Java transaction logic, error-handling, drivers, and ORM/DAO layers to support the behavior of modern databases.
• Participate in unit, integration, and performance testing to confirm functional parity and ensure applications meet performance SLAs post-modernization.
• Support application cutover activities for production environments, including validation, monitoring setup, rollback planning, and stabilization.
• Produce engineering documentation: SQL remediation guides, code-migration runbooks, troubleshooting guides, and knowledge-transfer material for customer teams.
• Work across distributed teams (US & India) and collaborate with customer SMEs to ensure business logic alignment and successful modernization outcomes.

What are we looking for?

• Bachelor’s degree in Computer Science, Engineering, or related field.
• 5+ years of professional Java development experience (Spring, JDBC, MyBatis/Hibernate or equivalent).
• Experience with application modernization, database migrations, or large-scale refactoring initiatives.
• Strong SQL expertise and the ability to analyze, interpret, optimize, and rewrite complex SQL used within Java applications.
• Deep understanding of JDBC, ORMs, Java transaction patterns, and database-driven application flows.
• Experience working on enterprise-grade, high-performance applications with complex data interactions.
• Strong communication skills and ability to work with global distributed teams in US time-zones.

You will be preferred if

• Experience with PostgreSQL, Aurora PostgreSQL, or modernization from legacy databases such as Oracle, SQL Server, or DB2.
• Exposure to automated code-refactoring tools or GenAI-assisted remediation workflows.
• Familiarity with CI/CD environments, performance testing tools, and observability stacks.
• Consulting or professional services experience delivering fixed-timeline modernization projects.

Job Title: Senior Java Developer

Location: Mumbai (On-site)

Notice Period: Immediate Joiners Preferred / 15 Days or Less

Job Description:

We are seeking a highly skilled and experienced Senior Java Developer with 5+ years of hands-on experience in Java-based application development. The ideal candidate should be adept at designing scalable systems, optimizing performance, and leading development efforts in collaboration with cross-functional teams. This is a full-time, on-site position for candidates currently residing in Mumbai and available to join within 15 days.

Key Responsibilities:

• Lead end-to-end design, development, and deployment of Java applications
• Translate functional and technical requirements into detailed design
• Build scalable, secure, and high-performing applications
• Develop and consume RESTful APIs and ensure seamless integration
• Implement microservices architecture and containerized deployments
• Write clean, efficient, and well-documented code
• Perform code reviews, debugging, and performance tuning
• Collaborate with DevOps for CI/CD and production deployments
• Guide junior developers and conduct knowledge-sharing sessions
• Stay updated on new technologies and industry trends

Required Technical Skills:

• Languages & Frameworks:
• Core Java, J2EE
• Spring Framework (Spring Boot, Spring MVC, Spring Security)
• Hibernate / JPA
• Apache Maven / Gradle
• API Development & Integration:
• RESTful APIs, JSON, Swagger/OpenAPI
• Databases:
• MySQL, PostgreSQL, Oracle
• MongoDB, Redis (preferred)
• Frontend Exposure (Optional but Preferred):
• HTML, CSS, JavaScript, jQuery
• Angular / React
• Tools & Platforms:
• Git, GitHub / GitLab / Bitbucket
• Jenkins, Docker, Kubernetes (basic knowledge)
• SonarQube, Log4j, ELK stack (preferred)
• Cloud & DevOps (Good to Have):
• AWS (EC2, S3, Lambda, RDS), Azure or GCP
• CI/CD pipeline setup
• Architecture & Patterns:
• Microservices, MVC, Design Patterns
• Event-driven architecture (Kafka/RabbitMQ is a plus)
• Testing:
• JUnit, Mockito
• Postman, REST Assured

Soft Skills:

• Excellent problem-solving and debugging skills
• Strong communication and collaboration abilities
• Ability to lead and mentor a team
• Time management and task prioritization
• Adaptable and quick learner

Qualifications:

• Bachelor’s/Master’s degree in Computer Science, Engineering, or related field
• 5+ years of relevant software development experience
• Relevant certifications (Oracle Java, AWS, PMP) are a plus

Eligibility Criteria:

• Must be currently residing in Mumbai
• Must be able to join within 15 days or less
• Immediate joiners preferred

"Hands-on experience with minimum 3 years of programming experience in JAVA 8 (or) 11.
Good experience using Springboot, Hibernate or JPA frameworks, Spring Security, Spring MVC (or) Spring Ioc (or) Spring AoP (or) any other spring framework.
Good experience in utilizing & working in Restful Webservices & Java Collection."
"Experience in Swagger, Microservices, Basic security, Design patterns.
Good Experience in utilising & working with Cosmos (or) MySQL."

We prefer candidates who can attend a walk-in interview and join immediately.

Job Description: Senior Java Developer with Leadership Experience

Position: Lead Developer

Experience: 5-8 Years

Location: Noida

Job Type: Full-time

Overview:

We are seeking a highly skilled and experienced Senior Java Developer to join our dynamic team. The ideal candidate will have a minimum of 5 years of experience in Java development, with a strong focus on leadership and team management. This role requires a proactive individual who can guide others, provide instant solutions, and ensure the successful completion of technical projects.

Key Responsibilities:

• Team Leadership: Lead, mentor, and manage a team of Java developers, fostering a collaborative and productive work environment.
• Project Management: Oversee the planning, execution, and delivery of projects, ensuring they are completed on time and within budget.
• Technical Guidance: Provide expert guidance on Java, JSP, Servlets, Spring Boot, and Hibernate, ensuring best practices and high-quality code standards.
• Problem Solving: Quickly identify, analyze, and resolve technical issues, providing instant and effective solutions.
• Code Review: Conduct regular code reviews to maintain code quality, performance, and security.
• Server Management: Manage server configurations, deployments, and troubleshooting to ensure optimal performance and uptime.
• Collaboration: Work closely with cross-functional teams, including QA, DevOps, and Product Management, to align development activities with business goals.
• Continuous Improvement: Stay updated with the latest industry trends and technologies, and continuously improve development processes and practices.
• Documentation: Ensure comprehensive documentation of all technical specifications, project plans, and procedures.

Qualifications:

• Education: Bachelor’s degree in Computer Science (tier 1/2), Information Technology, or a related field.
• Experience: Minimum of 5 years of hands-on experience in Java development, Minimum 1 year experience in leading Team

Technical Skills:

• Proficiency in Java, JSP, Servlets, Spring Boot, and Hibernate.
• Strong understanding of server-side technologies and server management.
• Experience with version control systems like Git.
• Familiarity with database management systems, particularly SQL.
• Fluency in English
• Leadership Skills: Proven experience in leading and managing development teams.
• Problem-Solving Skills: Strong analytical and problem-solving abilities.
• Communication Skills: Excellent verbal and written communication skills, with the ability to convey complex technical concepts to non-technical stakeholders.

Benefits:

● Provident Fund

Schedule:

● Day shift

● Fixed shift

● Monday to Friday

● Morning shift

·       3+ yrs of experience in product development (Preferring SaaS based)

·       Must have experience in Java web-based application development

·       Hands on development experience on Java/J2EE, Springboot, Spring, Struts, Hibernate, REST Services

·       Experience on HTML, JavaScript, JQuery

·       Hands on experience on database-writing queries/procedures

·       Experience on SVN,GIT,

·       Knowledge of Server configuration

·       Knowledge of cloud preferably AWS

Technical Skills:

• Enterprise: Java, J2EE, Microservices
• OS: Linux
• Database: Oracle, Postgres
• Networking, Multithreading, Socket programming
• Technologies: Struct, Spring, Spring-boot, Hibernate, Hibernate, Event sourcing
• Worked in RESTFul APIs, security and security-related areas especially where financial transactions are involved

Good to Know: ● Docker ● Jenkins ● CI/CD

Additional requirements:

• Strong work ethics, Disciplined, Value-driven, honest, respectful, honours commitment
• Has startup experience or willing to work in small companies
• Has knowledge/experience on the latest trends and technologies
• Has Github profile with own projects
• Participate in stack overflow, open source etc
• Has their own blog
• Excellent communication skills
• Extraordinary problem-solving skills
• Having standout/unique resume layout/design

Built on a foundation of AI we are automating enterprise application integration, data integration, data preparation for Analytics and bot automation. We are looking to build our engineering development center in Pune with passionate and entrepreneurial developers at all levels (Interns, Fresh Graduates, Senior Software Engineers and Architects).