Senior Software Engineer- Onecode

Job Title: Senior Java Full Stack Developer

Locations: Delhi NCR, Hyderabad, Chennai, Pune, Bangalore Experience: 6–13 Years

Employment Type: Full-Time

"Need Immediate joiners or serving notice period candidates only can join in a maximum of 30 days"

About the Role

We are looking for an experienced and highly skilled Java Full Stack Developer with strong backend expertise in Java and hands-on experience in ReactJS for front-end development. The ideal candidate will drive the design, development, and implementation of high-performance, scalable applications that meet business goals.

Key Responsibilities

Backend Development (Approx. 80%)

• Design, develop, and maintain robust and scalable backend services using Java, Spring Boot, and related frameworks.
• Build and optimize RESTful APIs and microservices.
• Collaborate with cross-functional teams to define backend architecture and ensure high availability and performance.
• Troubleshoot complex issues, debug code, and improve overall system reliability.
• Participate in code reviews, design discussions, and technical decision-making.

Frontend Development (Approx. 20%)

• Develop responsive user interfaces and reusable ReactJS components.
• Integrate frontend components with backend services and APIs.
• Ensure high performance, cross-browser compatibility, and seamless user experience.

General

• Work in an Agile/Scrum environment and deliver high-quality software on schedule.
• Maintain robust documentation and follow SDLC best practices.
• Mentor junior developers and contribute to team growth.

Required Skills & Qualifications

• 6–13 years of professional experience in software development, with a strong focus on backend systems.
• Advanced proficiency in Java, Spring Boot, and related server-side technologies.
• Hands-on experience with ReactJS and modern JavaScript.
• Solid understanding of REST APIs, microservices architecture, and web services.
• Strong database skills (SQL and/or NoSQL) and familiarity with schema design.
• Experience with version control (e.g., Git) and CI/CD practices.
• Excellent problem-solving, debugging, and communication skills.

Preferred Skills (Bonus)

• Experience with containerization and orchestration (Docker, Kubernetes).
• Exposure to cloud platforms (AWS, Azure, GCP).
• Knowledge of message queuing (Kafka, RabbitMQ).
• Familiarity with automated testing frameworks and best practices.

Education

• Bachelor’s or Master’s degree in Computer Science, Engineering, IT, or a related field (or equivalent practical experience)

We are seeking a talented Java Full Stack Developer to join our team.

We are solving complex technical problems in the financial industry and need talented software engineers to join our mission and be a part of a global software development team. As a Java Full Stack Developer, you will be responsible for designing, developing, and maintaining enterprise applications using Java and Angular.

You will collaborate with cross-functional teams to define, design, and ship new features, and you will work closely with Architects to ensure the technical feasibility of designs and implement them accordingly.

Required Skills: 

• Exp. - 5 to 9 years. 
• Experience in Core Java 8 and above, Spring (including Core, WebMvc, Batch, Cloud etc). 
• Extensive experience in developing enterprise-scale n-tier applications for financial domain. 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. 
• Develop user interfaces for modern web applications using Angular. 
• Experience with HTML5, CSS3, and JavaScript. 
• Good development experience with RDBMS, preferably DB2/Sybase databases. 
• 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. 

Good to have Skills: 

• Prior experience in investment banking / capital markets. 
• Experience with cloud platforms such as AWS, Azure, or Google Cloud Platform. 
• Knowledge of DevOps practices and CI/CD pipelines. 
• Familiarity with Agile methodologies. 
• Contributions to open-source projects. 
• Relevant certifications (e.g., Angular, Java). 

Experience • 1-3 years

Skill to Test

• Java EE (Servlets, JSTL, JSP, JDBC)

• ReactJS

Primary Skills

• Java EE (Servlets, JSTL, JSP, JDBC)

• Frontend frameworks (ReactJS and/or Angular)

• Pure JavaScript, jQuery

• Bootstrap, HTML5, CSS, SASS

Secondary Skills (nice to have)

• Passionate about implementing UX\UI of web applications

• Microsoft SQL Server (writing optimized queries, stored procedures, triggers etc.)

• API Design (REST, JAX-RS)

• Understanding Apache Tomcat configuration and deployment of web applications

• Understanding of browser technologies and limitations

• Authentication and Authorization (SAML, OAuth, OpenID, Okta)

2

Soft Skills

• Thrives collaborating in a team environment with a diverse range of people

• Passionate about delivering an amazing customer experience

• Able to have a change of mind, and able to change the minds of others

• Writes clearly and concisely

• Capable of working without a company office, with a fully remote team

Growth Skills

• Possesses a good work ethic; a self-starter with a desire to grow

• Always looking for better ways to get the job done

Responsibilities: 

• Responsible for monitoring project deliverables on day to day basis 
• Required to update relevant stakeholders or team members on the project's progress. 
• Assist, train, and ensure project team members with tasks that you have assigned to them. 
• Test the product modules and manage the change request, bug reports, etc. 
• Assist project managers in the planning, execution, and monitoring of projects Develop and maintain project plans, timelines, and progress reports. 
• Facilitate communication between intern stakeholders, clients, vendors, and management. 

Qualifications:

•  Bachelor's Degree or equivalent experience. 
• 3+ years of relevant Project Management experience. 
• Strong verbal, written, and organizational skills for documentation, user stories, etc. 
• Proficient in MS Excel, and Presentation. Proficient in Jira, Confluence, and Notion is a plus. 
• Excellent organizational and time-management skills. 
• Strong communication skills, both verbal and written. 
• Ability to work well in a team environment. 
• Experience with project management tools and software. 
• Ability to identify project risks and issues, and develop mitigation plans.

Proficient in Java 8 Version, J2EE and related technologies.
• Experienced in using spring, Spring Boot, Hibernate, messaging systems.
• Good understanding of relational database performance concepts and usage of ORM frameworks such as Hibernate
• Expert understanding of the object-oriented design and programming concepts
• Strong working experience  on Data Structures, Algorithms and Collections.
• Solid experience building applications on top of RESTful APIs.
• Knowledge/experience with Spring MVC
• Stroing knowledge in developing and executing automated unit, functional and integration tests
• Good communication and analytical skills.
• Strong trouble shooting skills

• 6-13 years’ experience designing for high performing digital products across various domains
• Degree in design-related field or equivalent experience.
• Good understanding of design patterns, industry trends, and great approaches to solve problems
• Expertise in core UX disciplines including information architecture, interaction design, application of design systems, and UI design.
• Creative problem-solver with a strong eye for detail
• Experience and understanding of Responsive Web Design
• Experience with iOS and Android Mobile App Design
• Must have Software Proficiency with Figma, Sketch, Miro
• Proficient in wire-framing and comfortable producing concept sketches and user flows
• A passion for UX and User Research
• A strong portfolio which demonstrates work across a range of clients
• Strong experience of user research and usability testing
• Passionate about Design Thinking.
• Excellent verbal and written communications skills.
• Experience with accessibility, localization, and internationalization.
• Experience working directly with developers to ensure the successful implementation of a design specifications
• Familiarity with content strategy, content management, taxonomy and large scale digital publishing.
• Knowledge of HTML, CSS, and JavaScript.
• Knowledge with QA and testing methods is a plus.
• All candidates will be required to submit a portfolio of work samples and/or links to their work.

Who We are:

Paxcom a leading Digital Solution Provider is a part of Paymentus now, a leading electronic bill payment provider. PaymentUs leads the North American marketplace in electronic bill payment solutions and have recently signed a partnership with Paypal, Alexa and Walmart. We are looking for passionate programmers skilled in Java, Python, Angular, NodeJS, Python, Jenkins, Postgresql, Docker, Kubernetes, Spark and AWS to join our development team.

For more details, please visit https://paxcom.ai/

Why Join Us?

Get a chance to contribute and get recognition from Day 1.

You hate micromanagement and are able to take your decision independently. 

Enjoy flexible and relaxed wok environment.

Work 5 days a week (Enjoy work-life balance).

A friendly, Supportive, Professional and achievement-oriented management team

Competitive remuneration.

An opportunity to learn new things every day.

You Enjoy:

Ideal resource should be from Java background with a minimum of 3+ years’ experience in Java technologies.

Should have extensive experience working with Spring, Any ORM and Restful Web services.

Strong experience building, designing, and consuming Restful web services.

Must have experience with spring boot/Spring MVC

1+ years’ experience with one or more JS frameworks: NodeJS/Express, Angular, React, ExtJS, Vue is preferred

Experience / Knowledge of Agile Scrum methodology.

Should have used GIT and be self-dependent on resolving merge conflicts.

Should be familiar with build tool like Maven or Gradle.

Excellent verbal and written communication skills.

Ability to handle small teams and mentor them.

Leader, Doer & Architect for Enterprise Java applications

Experience of payment card industry is a plus.

Tech Stack:

Java 8+

Microservices

REST 

Spring Framework 4/5

MySQL 5.6/Oracle

Nice To have (CPM Scheduling, Angular/React, NodeJS)

Linux, GIT, Docker, kubernetes, Cloud, AWS,Kafka

Building tools like Maven, Ant, Gulp

• Designing and developing high-volume, low-latency applications for mission-critical systems and delivering high-availability and performance.
• Contributing in all phases of the development lifecycle.
• Writing well designed, testable, efficient code.