Backend Application Developer (Core Specialist Tier)

Backend Application Developer Core Specialist Tier

Location: Basel Switzerland
Contract Duration: 3 years with possible extension
Experience Required: 3 years.

Industry Experience: Utilities & Energy (****Energie & Wasserversorgung) or Telecommunications or Banking & Financial Services or Information Technology & Services

Role Overview

We are looking for an experienced Backend Application Developer to support a long-term enterprise project in Basel. This is a 3-year contract role with the possibility of extension.

The ideal candidate will have strong hands-on experience in designing developing and maintaining secure scalable and high-performance backend applications. The role requires solid expertise across Microsoft and open-source technologies Core Microsoft SQL Server MySQL Python and MVC architecture.

Strategic Scope: Responsible for the rigorous structural translation of complex technical business processes and energy-sector transactions into scalable highly available object-oriented server designs secure multi-tier logical services integrated API configurations and decoupled microservice patterns.

Tasks

Core Responsibilities

• Requirement Extraction: Systematically analyse document and map granular business requirements to engineer structural software components robust middleware layers and complete enterprise backend applications.
• Architectural Design: Define and implement strict functional and non-functional runtime profiles including high availability automated horizontal scalability enterprise-grade security protocols and minimal processing latency parameters.
• Data Modeling: Conceptualise construct and manage normalized and denormalized relational database schemas complex entity relationship models and performance-tuned object-relational mapping configurations.
• Web Service Implementation: Build test document and support enterprise web service integrations utilizing asynchronous RESTful APIs high-security SOAP communication paths and structured microservices architecture layouts.
• Access & Federation Protocols: Configure and map identity federation integrations across legacy and modernized components by binding application endpoints strictly to modern access frameworks (OAuth2 OpenID Connect SAML 2.0).
• Environment Deployment Support: Manage maintain and provision isolated localized staging and continuous testing application runtime environments orchestrating automated system packaging and localized deployment workflows.
• Defect Analysis & Root-Cause Remediation: Provide critical tier-3 engineering diagnostic support proactively profiling running server systems to detect reproduce isolate and permanently resolve complex technical defects within high-load production software systems.

Requirements

Required Skills & Experience

• Minimum of 3 to 5 years of demonstrable enterprise software development tenure in multi-tier server architectures.
• Strong experience Framework Framework 4.0 .NET Core MySQL.
• Good knowledge of MVC architecture.
• Strong database experience with Microsoft SQL Server
• Working knowledge of Python.
• Experience developing APIs backend services and enterprise applications.
• Good understanding of secure coding performance optimisation and software development lifecycle practices.
• Ability to work independently as well as part of a distributed project team.

Languages : Flawless bilingual/native-level business German communications proficiency (C1/C2 level written and spoken) is required. The candidate must present seamlessly in German during the technical panel interview (Anbieterfachgespräch).

• Swiss Compliance : Must hold EU/EFTA nationality or possess an active valid Swiss permanent residency/work card (C Permit or unrestricted B/G Permit).

**What We Offer:**

* Opportunity to work on challenging projects and contribute to the growth of our company
* Collaborative and dynamic work environment
* Professional development and growth opportunities
* Competitive salary and benefits package

Recruitment Process AI Screening with TARA

• As part of our recruitment process candidates may be invited to complete an initial AI-powered screening with TARA the interview agent.
• TARA helps us make the hiring process faster fairer and more consistent by asking structured role-relevant questions based on the job requirements. The interview is designed to understand your experience skills motivation and suitability for the role.

The AI screening interview may include:

• Questions about your professional background and relevant experience
• Role-specific technical or functional questions
• Questions about your motivation availability and communication skills
• The interview can usually be completed online in 15-20 minutes at a time that is convenient for you. Your responses will be reviewed as part of the overall selection process together with your CV application details and any follow-up interviews with the hiring team.

Candidate Experience.:

• We use AI to support the recruitment process but final hiring decisions are made by people. Human recruiters and hiring managers remain involved in reviewing candidates and making selection decisions.
• We are committed to a transparent respectful and fair candidate experience. Your data will be handled confidentially and in accordance with applicable data protection requirements.