Application engineer M/F

Be part of a long-term projet!

We are looking for an Application Engineer for one of our client based in Luxembourg.

• Freelance contract or permanent contract via a payrolling company
• Job based in Kirchberg
• English fluent is mandatory
• 100% on-site during the first 3 months and then up to 2 remote days per week

Business & Domain Engineering

• Partner with Architects, Product Owners, and business SMEs to shape problems into implementable, testable, traceable requirements
• Perform end-to-end impact analysis across processes, apps, data, and upstream/downstream integrations
• Align with target architecture, security standards, regulations, and internal policies
• Maintain a requirements baseline and manage change through the lifecycle

Plan & Analyze

• Run feasibility and complexity analyses
• Identify risks with mitigation strategies
• Assess resource, cost, and schedule impacts

System Design

• Define system designs, integration patterns (API, messaging, events), and data models, so teams build the right interfaces once and integrations stay resilient.
• Specify integration contracts and interface specs

Implement & Integrate

• Guide implementation, configuration, and migrations, so delivery teams move faster with fewer blocked sprints.
• Support cloud, hybrid, and on‑prem environments, so your solutions run where the business needs them, with consistent reliability.

Transition to Operations

• Lead production readiness reviews
• Define runbooks, SLIs/SLOs/SLAs, monitoring, and alerting

Operate & Improve

• Support L2/L3 operations
• Drive incident analysis, root cause investigations, and post‑mortems
• Feed operational learnings back into design and backlog

Software Engineering Support

• Embed non‑functional requirements by design
• Participate in code reviews, design reviews, and technical spikes

DevOps, CI/CD & Platform Enablement

• Collaborate on environment strategy and configuration management - so environments are consistent and releases become routine.
• Boost efficiency through automation and observability

Quality, Risk & Compliance

• Apply quality‑by‑design, security‑by‑design, and privacy by design
• Ensure traceability and documentation for regulatory, audit, and compliance
• Perform risk assessments across performance, security, and operations
• Keep system documentation as living artifacts (architecture, ADRs, specifications, runbooks)

Delivery Execution

• Operate effectively in Agile/Scrum, hybrid, and traditional models
• Contribute to backlog refinement, sprint planning, and release planning
• Support demos, stakeholder feedback, and technical decision forums
• Act as a delivery enabler balancing business priorities with engineering constraints

Application Responsibility (AR)

• Own assigned applications end‑to‑end across investment and maintenance, so you see the full lifecycle and shape the roadmap.
• For custom solutions, partner closely with Software Engineers; for packaged solutions, drive integration and lifecycle management
• Share patterns, standards, and lessons learned.

Your profile :

• BSc / BA in Computer Science, Software Engineering, Mathematics, or related technical field.
• Minimum 8 years of experience in application and solution engineering, or software delivery roles.
• Experience in financial services, Wealth Management, or regulated environments is a strong advantage.
• Proven collaboration with Software Developers, Architects, DevOps, QA, and Operations teams.

Technical Proficiency

• System and application design, service decomposition, and integration architecture.
• Data modeling (logical and physical).
• Integration patterns: REST/GraphQL APIs, messaging, event-driven architectures, batch/file interfaces.
• Non-functional requirements: performance, resilience, security, observability, scalability.
• Test strategy, automation, TDD/BDD, contract testing, and quality assurance.
• CI/CD concepts, release management, environment configuration, and operational readiness.
• Ability to review and assess code quality for maintainability, performance, and security.