Senior Backend Engineer (Java)

TL;DR

Senior Backend Engineer (Java): Building and optimizing backend systems for product integrations with an accent on secure, high-load Java services, API design, and system resilience. Focus on implementing ICS backend components, developing REST APIs, and ensuring operational reliability during critical delivery and stabilization phases.

Location: Fully Remote

Company

Avenga, operating globally with 6000+ specialists, provides a full spectrum of services including business and tech advisory, enterprise solutions, product development, and software development.

What you will do

• Implement ICS backend components according to the defined system architecture.
• Design and develop REST APIs and server-side integration logic.
• Write stable, testable, and audit-ready code.
• Participate in UAT support and system stabilization phases.
• Analyze logs, errors, and retry scenarios to ensure system reliability.

Requirements

• Strong Java expertise (17+), experience with Java 21 is a plus.
• Spring Boot 3.x (REST controllers, exception handling, configuration).
• API development & integration: REST (OpenAPI/Swagger) and SOAP.
• Data processing & integrations: XML parsing, XSD validation, large payload handling.
• Experience with idempotent and reliable backend processing.
• Security awareness: mTLS fundamentals, secure handling of sensitive data, no PII logging.
• Database experience: MS SQL.
• Strong grasp of code quality & testing: clean code, unit and integration tests.
• Operational mindset: experience with logs, error handling, retries, and system stabilization.

Nice to have

• Experience working on enterprise or integration-heavy systems.
• Familiarity with regulated or audit-sensitive environments.

Culture & Benefits

• A global company valuing human creativity and diverse skills.
• Opportunity to contribute to a collective strength in a welcoming environment.
• Structured hiring process designed to explore mutual growth opportunities.
• Supportive team environment for professional development.

Hiring process

• Application submission and review by the team.
• Talent Acquisition Interview to discuss goals and company offerings.
• Technical Interview to dive deeper into expertise and problem-solving skills.
• Customer Interview for some roles to align with clients.
• Job Offer and welcome to the team.