Current Openings at Cellulant

As a Software Engineer, you work in a team that owns the design, development, and operations for mission-critical applications of the payments business. You are responsible for developing applications using best practices. 

What You'll do:

• Develop and maintain backend features and ensure existing systems run smoothly.
• Collaborate with frontend and API engineers to define and implement RESTful API specifications.
• Build and deploy microservices using Java, Spring, and Spring Boot.
• Write testable, efficient, and reusable code using test-driven development (TDD).
• Participate in Sprint Planning, track work items, and deliver high-quality results.
• Fix bugs promptly and approach complex problems methodically.
• Contribute to architecture and code reviews to ensure scalable and performant solutions.
• Prototype new ideas to refine feature definitions.
• Ensure written code adheres to best practices, is scalable, and optimized for performance.

What we are looking for:

• Bachelor's degree in Information Technology, Software Engineering, Computer Science or related field
• 2+ years of experience in backend development, building scalable systems.
• Proficiency in Java, Spring, and Spring Boot.
• Strong understanding of data structures, algorithms, and distributed systems.
• Experience with cloud-native applications and deployment using CI/CD pipelines.
• Familiarity with unit testing frameworks and automated functional testing.
• Exposure to building multi-tenant applications and performance optimization is a plus.
• Good interpersonal skills and ability to collaborate effectively with teams.
• Autonomous, detail-oriented, and eager to take initiative.

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Role Overview: 

We are seeking a Senior Software Engineer: Full-stack with a strong command of modern front-end and back-end technologies, excellent code review practices, and a passion for collaboration and mentorship. In this role, you will contribute to the delivery of high-quality user interfaces with a scalable backend, provide technical leadership, and help elevate the performance of the engineering team through deep technical contributions and peer support.

What You'll do:

Code Quality & Technical Excellence

• Design and implement scalable, user-friendly full-stack applications.
• Develop efficient, lock-free SQL queries for optimal data storage, retrieval, and updates.
• Optimize application performance to achieve fast loading times.
• Build secure and scalable front-end and back-end systems capable of handling high traffic with minimal disruption.
• Create well-documented APIs for seamless third-party integration.
• Proficiency in analyzing and optimizing applications for efficient memory usage and high performance, with a solid grasp of time and space complexity.
• Can establish code quality standards; 
• Can be able to create frameworks for better code organization.
• creates standards for code reviews, implements automated quality gates;
• Drives best practices adoption

Collaboration & Cross-Functional Work

• Collaborate with:
  • Product designers to translate Figma designs into performant, accessible UI components
  • Backend engineers to define APIs and ensure seamless user journeys
• Actively participate in sprint ceremonies, including:
  • Daily stand-ups
  • Sprint planning and backlog refinement
  • Retrospectives — contributing to continuous team improvement
• Lead task refinements where you are the designated Tech Owner

 Production & Operational Readiness

• Own end-to-end debugging of production issues using tools such as:
  • Datadog for tracing HTTP requests
  • Logging and monitoring systems to identify root causes
     
• Understand and leverage the team's CI/CD pipelines for efficient delivery
• Identify and share relevant documentation with new or existing team members
• Possesses a foundational understanding of at least one major cloud platform, such as AWS. 
• Proficiency in using the GIT version control system.
   

 Autonomy & Ownership

• Work independently with little to no supervision
• Demonstrate proactive behavior — e.g., posting status updates, reviewing PRs, and following team processes without being prompted
• Exhibit strong verbal and especially written communication skills for effective documentation and collaboration. 
• Contributes to architectural discussions by providing a benefit analysis and outlining the pros and cons of proposed approaches.
• Proactively seeks out and researches new and emerging technologies.

What we are looking for:

Required Technical Skills:

Front-End Expertise:

• Advanced proficiency with the front-end technology stack, including React, TypeScript, JavaScript, and CSS-in-JS.
• Strong grasp of modern state management, component architecture, and front-end testing methodologies.
• Proven experience working with design systems and developing reusable UI components.
• Proficiency in backend integration and consuming REST APIs.

Back-End Expertise:

• Advanced proficiency in the backend technology stack: Java and Springboot.
• Solid understanding of at least one SQL language (e.g., MySQL, PSQL, or MSSQL).

General Development:

• Familiarity with Continuous Integration/Continuous Deployment (CI/CD) pipelines and relevant tooling.

Experience

• 5+  years of professional experience in front-end and backend development
• Proven track record of delivering high-quality front-end applications
• Experience mentoring engineers and leading technical discussions

Soft Skills

• Takes full ownership of responsibilities and outcomes.
• Excellent communication (written and verbal), collaboration, and documentation abilities.
• Highly self-managed, demonstrating the ability to deliver results with minimal supervision.
• Innovative and customer-centric, always considering the end-user's perspective.