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🟢 Actively Hiring · Posted 1d ago ⏳ Closes in 59 days UK Corridor 🛡️ UK Work Eligibility 🏢 FULL_TIME

Senior Software Developer – Async Architecture & Concurrency (m/w/d)

🏢 cigus GmbH • 📍 Jena • 🕒 Oct 9, 2026
Salary Range
£34,677 - £49,239
£2,890 - £4,103 / mo
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This vacancy has been independently reviewed by the OppaJob Transatlantic Career Intelligence Desk to confirm authentic direct employer recruiting, verify compensation transparency, and eliminate applicant processing fees.

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Corporate Registration Verified UK Companies House registration standing active
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Prevailing Wage Benchmark UK National Minimum Wage & Equality Act 2010 aligned
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Corridor Right-to-Work Match UK Work Eligibility

Transatlantic Cost of Living & Purchasing Power Benchmark

Verified Analytics
Location Base
Jena
Tier-1 UK Economic Zone
Est. Take-Home Pay
68% - 74% (After PAYE & NI)
Single tax filer baseline
Transatlantic Parity
1.0 GBP ≈ $1.28 USD Living Standard
Direct corporate benchmark
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Position Overview & Specifications

Hochtechnologie und Innovation...

…aktiv mitgestalten und vorantreiben – für diese Position suchen wir eine engagierte Persönlichkeit (m/w/d), die mit Ideenreichtum, Verantwortungsbewusstsein und fachlicher Kompetenz überzeugt. Als Beratungsunternehmen unterstützen wir unseren Kunden bei der Suche nach einer passenden Person, die Herausforderungen nicht als Hürde, sondern als spannende Möglichkeit zur Weiterentwicklung versteht.

Das erwartet dich:

  • Modernisierung komplexer .NET-Anwendungen mit Fokus auf Asynchronität, Threading und Anwendungsperformance

  • Migration synchroner Legacy-Codebasen in stabile Async-/Await-Architekturen mit geeigneten Übergangsstrategien

  • Entwicklung robuster Integrationskonzepte zwischen synchronen und asynchronen Komponenten mittels moderner Architekturmuster

  • Analyse und Behebung komplexer Concurrency-, Threading- und Performance-Probleme in produktiven Anwendungen

  • Gestaltung skalierbarer Desktop-Architekturen mit WPF, WinForms und performanter UI-Thread-Kommunikation

  • Definition von Best Practices für Cancellation, Fehlerbehandlung, Ressourcenmanagement und reproduzierbare Qualitätssicherung

  • Technische Beratung zu Async-Paradigmen, Softwarearchitektur, Refactoring und schrittweiser Modernisierung großer Softwarelandschaften



Für diese Position sind bestimmte fachliche und persönliche Voraussetzungen hilfreich. Die folgenden Anforderungen geben dir einen Überblick darüber, welche Erfahrungen und Eigenschaften für diese Rolle von Vorteil sind.

Was du mitbringen solltest:

  • Studium der Informatik, Software Engineering oder vergleichbare Qualifikation sowie mehrjährige C#/.NET-Erfahrung

  • Fundierte Praxis mit Async/Await, SynchronizationContext, Task Scheduler, ConfigureAwait und hybriden Sync-/Async-Architekturen

  • Erfahrung mit Deadlocks, Race Conditions, Thread-Pool-Exhaustion und komplexen Multi-Threading-Fehlerbildern

  • Mehrjährige Kenntnisse in WPF, WinForms, Dispatcher und performanter Entkopplung rechenintensiver UI-Prozesse

  • Erfahrung mit Profiling und Diagnosewerkzeugen wie Visual Studio Diagnostics oder PerfView

  • Praxis in Legacy-Modernisierung, Refactoring, Softwarearchitektur und automatisierten Tests für Concurrency-Szenarien

  • Erfahrung als technischer Lead, Coach oder Mentor sowie mit Architekturstandards und statischer Codeanalyse

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Candidate Selection & Onboarding Process

1

Application & Resume Screening

Submit your tailored CV/Resume directly to the talent acquisition portal.

2

Technical & Competency Interviews

Virtual interviews with the hiring manager and multidisciplinary team.

3

Formal Offer & Benefits Negotiation

Written agreement outlining compensation, equity, retirement vesting, and relocation allowances.

4

Onboarding & Corporate Integration

Equipment provisioning, team orientation, and commencement of duties.

United Kingdom Right to Work & Skilled Worker Visa Guide

Corridor Intelligence

Employment in the United Kingdom requires legal Right to Work verified under the Home Office Points-Based Immigration System:

🇬🇧 Skilled Worker Visa (Tier 2)

Sponsoring employers must hold an active Home Office A-rated Sponsor License and assign a valid Certificate of Sponsorship (CoS). Role must meet the general minimum salary threshold (£38,700) or occupation going rate.

🏛️ Settlement (ILR) Pathway

Continuous employment under Skilled Worker status establishes eligibility for Indefinite Leave to Remain (ILR) after 5 continuous years, leading to British Citizenship.

⚖️ Official regulatory reference: UK Visas and Immigration (UKVI) & Home Office Sponsor Register.

Candidate Preparation Blueprint: Internet and software

Recruitment Insights

Based on transatlantic hiring benchmarks for Senior Software Developer – Async Architecture & Concurrency (m/w/d) roles across cigus GmbH's corporate sector, successful applicants typically excel across three core dimensions:

1. Domain Competency

Demonstrated portfolio evidence, architecture/system design case studies, or validated professional certifications directly applicable to Internet and software.

2. Behavioral & Leadership

STAR method competency responses highlighting cross-functional leadership, conflict resolution, and delivering measurable enterprise ROI under tight timelines.

3. Compensation Alignment

Total compensation expectation aligned within the benchmarked £34,677 - £49,239 bracket, including retirement vesting and health parity.

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Hiring Organization
cigus GmbH

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Location: Jena
Eligibility: UK Work Eligibility
Schedule: FULL_TIME
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