Sr. Software Engineer

Cognizant; Elsene; Hybride; EUR 65 000 - 105 000; Plein temps

Résumé du poste

Cognizant in Belgium is seeking a Sr. Software Engineer to design, develop and maintain secure, scalable microservice based applications using Python, Java, JavaScript and SQL.

You will collaborate with cross-functional teams to deliver robust features and support CI with industry best practices. The role requires hands-on experience across backend and frontend components, a solid grasp of microservices, REST APIs, data modeling, and strong problem solving.

Qualifications

• 1–10 years of software engineering experience building production-ready apps.
• Strong Python proficiency with libraries and conventions.
• Hands-on Java backend experience with OO design and exceptions.
• JavaScript UI development with events, state management and API integration.
• Solid SQL knowledge: optimization, joins, indexing and data modeling.
• Understanding of microservices, stateless design and inter-service communication.
• Familiarity with source control, CI tools and automated build/deploy basics.
• Exposure to asset and wealth management domain is a plus.
• Clear communication and proactive problem solving.

Responsabilités

• Develop and maintain modular microservice components aligned with enterprise standards.
• Implement Python services for data processing and backend logic.
• Design Java service layers integrating with existing platforms and transactions.
• Build interactive JavaScript frontend features with backend integration.
• Write optimized SQL queries and data procedures across environments.
• Collaborate with senior engineers and product teams on requirements.
• Participate in code reviews and promote engineering best practices.
• Create technical docs describing contracts, data flows and runbooks.
• Contribute to automated testing with unit/integration/regression tests.
• Troubleshoot defects and perform root cause analysis with validated fixes.
• Monitor application health via logs, metrics and dashboards.
• Follow secure development practices for authentication, authorization, encryption.
• Engage stakeholders to align software with evolving needs.
• Apply asset/wealth management concepts where relevant.
• Adapt to hybrid work using digital tools and in-person sessions.

Connaissances

Python

Java

JavaScript

SQL

Microservices

CI/CD

Version control

API integration

Description du poste

Job Summary

This hybrid role for a Sr. software engineer focuses on designing developing and maintaining secure and scalable microservice based applications using Python Java JavaScript and SQL. The candidate will collaborate with cross functional teams to deliver robust features enhance performance and support continuous integration while following industry leading engineering practices.

Responsibilities

• Develop and maintain modular microservice components that support scalable business applications and align strongly with enterprise engineering standards
• Implement clean and efficient Python services that handle complex data processing tasks and ensure reliable and maintainable backend logic
• Design and code Java based service layers that integrate with existing platforms and provide consistent and predictable transactional behavior
• Build interactive JavaScript front end features that enhance user experience and ensure seamless interaction with backend microservices
• Write optimized SQL queries and database procedures that support high performance data access and maintain data integrity across environments
• Collaborate with senior engineers and product teams to refine technical requirements and translate them into clear implementation tasks
• Participate in code reviews to provide and receive constructive feedback while continuously improving code quality and shared engineering practices
• Create and maintain technical documentation that clearly describes service contracts data flows configuration details and operational runbooks
• Contribute to automated testing pipelines by writing unit tests integration tests and regression tests that increase system reliability
• Troubleshoot and resolve defects in microservices and database logic by performing structured root cause analysis and careful validation of fixes
• Assist in monitoring application health using logs metrics and dashboards to identify bottlenecks and recommend targeted improvements
• Support secure development practices by following organizational guidelines for authentication authorization encryption and data handling
• Engage with stakeholders to understand evolving functional needs and propose incremental enhancements that deliver measurable business value
• Apply basic understanding of asset and wealth management concepts when relevant to ensure that software solutions align with financial domain objectives
• Adapt to hybrid work expectations by collaborating effectively through digital tools and in person sessions to maintain team cohesion and productivity

Qualifications

• Possess professional experience between one and 10 years in software engineering with a focus on building production ready applications
• Demonstrate strong proficiency in Python development including experience with common libraries frameworks and structured coding conventions
• Exhibit hands on experience with Java for backend services including object oriented design principles and exception handling practices
• Show practical skills in JavaScript for user interface development including event handling state management and integration with APIs
• Display solid understanding of SQL including query optimization joins indexing and best practices for relational data modeling
• Understand microservices fundamentals such as service boundaries stateless design interservice communication and resilience patterns
• Have familiarity with source control workflows continuous integration tools and basic concepts of automated build and deployment pipelines
• Bring exposure to asset and wealth management processes as a desirable advantage that helps in understanding investment and portfolio solutions
• Communicate clearly with technical and nontechnical partners and demonstrate a proactive approach to problem solving and continuous learning