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Backend Engineer

Backend Engineer

Senior C#.NET Developer

Cryptonow

Baarsenior

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Role description

About Us
We are dedicated to making crypto easy and accessible for everyone. Our unique product offerings, including the European Cryptonow Brokerage Platform and Crypto Voucher Cards, have positioned us as pioneers in the industry since 2017. Cryptonow obtained the MiCAR licence by the FMA (Financial Market Authority), ensuring compliance with the highest EU regulatory standards. With offices in Austria and Switzerland — right in the heart of "Crypto Valley" — we are looking for an experienced C#.NET Developer to help build and scale the systems powering our brokerage and voucher card platforms.

Role Overview
We build software with AI as a core part of our workflow — but our business logic (regulatory compliance, financial transactions, multi-partner integrations, real-time crypto settlement) is genuinely complex. That's exactly why this role isn't about typing code. We need someone who can direct AI tools effectively, but who has the seniority to catch what they get wrong, question the "obvious" solution, and design systems that actually hold up under regulatory and financial scrutiny.

You'll own the architecture and business logic behind critical parts of our platform, working closely with product, compliance, and other engineers to translate complex financial and regulatory requirements into robust, maintainable C#.NET systems — using AI as a force multiplier, not a substitute for judgment.

Key Responsibilities

  • Design, build, and maintain C#.NET applications and services powering our brokerage platform and voucher card systems.
  • Translate complex business and regulatory requirements (MiCAR, financial transaction flows, partner integrations) into clear technical designs.
  • Use AI coding tools to accelerate development — while owning code quality, architecture decisions, and edge-case handling that AI tools routinely miss.
  • Review and critically evaluate AI-generated code for correctness, security, and business-logic accuracy before it ships.
  • Architect and maintain integrations with external partners, payment providers, and blockchain/crypto infrastructure.
  • Identify performance bottlenecks, security risks, and scalability issues, and design solutions proactively.
  • Mentor other developers on both technical best practices and effective, responsible use of AI tooling.
  • Collaborate closely with product owners and compliance stakeholders to ensure systems meet EU regulatory standards.
  • Write and maintain clean, well-documented, testable code and champion good engineering practices across the team.
  • Participate in code reviews, architecture discussions, and sprint planning.

Qualifications

  • 5+ years of professional experience in C#.NET development (ASP.NET Core, .NET 9/10, Blazor), with a strong grasp of OOP and clean architecture principles.
  • Proven experience designing and maintaining complex, business-critical systems — not just CRUD apps.
  • Solid understanding of databases (SQL Server, PostgreSQL, or similar), API design (REST), and cloud infrastructure (AWS preferred).
  • Comfortable using AI coding assistants daily, with the seniority to know when to trust them and when to override them.
  • Strong analytical skills and the ability to deeply understand business logic, not just implement tickets.
  • Experience with fintech, payments, or crypto/blockchain systems is a strong plus.
  • Familiarity with security best practices and regulatory considerations in financial software is a plus.
  • Excellent communication skills — able to explain technical trade-offs to non-technical stakeholders.
  • Fluency in English required; German is a plus.
  • Based in or willing to relocate to Vienna or Baar; open to occasional travel between offices.
  • Self-driven, detail-oriented, and comfortable owning decisions in a fast-moving environment.

What We Offer

  • A key technical role with real ownership over architecture and product direction — not just a seat in a ticket queue.
  • Work from our Vienna or Baar office, both based in vibrant, well-connected fintech and crypto hubs.
  • Modern engineering culture where AI tools are embraced to remove grunt work, freeing you to focus on the interesting, high-value problems.
  • The opportunity to work on cutting-edge crypto and fintech infrastructure at a licensed, regulated, EU-compliant company.
  • A collaborative, low-ego team that values judgment and craftsmanship over just "shipping fast."
  • Competitive compensation and opportunities for professional growth.
  • Flexible/hybrid working arrangements.

If you're a C#.NET developer who's excited about using AI to move faster — but knows that real seniority means understanding the business well enough to know when the AI is wrong — we'd love to hear from you.

Join us in building the future of the financial industry, one well-architected system at a time, from our offices in Vienna or Baar.

This is a saved copy of a posting published elsewhere. Postings get taken down without notice — check the employer's site before applying. mentors.coach is not the hiring party.

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Backend Engineer

Forward-Deployed Software Engineer

Hoshii

Zurichfulltime

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Role description

The inbox was never built to run a business. Orders get missed, RFQs go cold, and every line gets retyped into the ERP by hand — one email, one PDF, one WhatsApp message at a time. We built AI Coworkers that do most of the repetitive work nobody wants to do instead: they read what comes in, sort it, draft linked actions, and post clean entries straight into the customer's systems of record. The team approves; Hoshii does the rest.

We are the ones driving, train-riding and flying to customers, running the workshops, and staying up past the demo to make the PoC actually work — and we can't scale that forever. We are looking for a Forward-Deployed Software Engineer to become the technical face of Hoshii in front of the companies who actually run on our product: someone who can walk into a customer's office, understand exactly where the manual pain lives, build a working proof of concept in days rather than weeks, and take it all the way to production — then stay accountable for it once it's live. You'll follow Amazon's "you build it, you run it" principle: whatever you ship for a customer, you own operationally too. You will join the founding team building the AI Coworker that operations teams actually run their order desk on.

Tasks

  • Run on-site and remote discovery directly with customers: map their order-to-cash workflows, identify the real pain points behind the stated requirements, and translate them into technical scope.

  • Build and demo working proofs of concept fast, iterating directly with customer stakeholders rather than through a requirements document.

  • Own end-to-end deployment: integrate Hoshii's agents with the customer's ERP/CRM systems, configure the workflow, and take it live in production.

  • Follow the
    "you build it, you run it"
    principle: stay accountable for what you deployed, monitor it in production, and be the first responder when something breaks for that customer.

  • Feed field learnings back into the product roadmap — you're often the first to see where the product breaks down against a real workflow, and that signal needs to shape what we build next.

  • Work closely with our channel partners to keep the underlying integrations reliable across every customer running on their systems.

  • Write clean, tested, maintainable code — you're not just configuring, you're building.

Requirements

We are looking for team players with a growth mindset, an entrepreneurial spirit, and genuine comfort being the person in the room with the customer:

  • Strong fullstack coding and debugging skills — comfortable moving across frontend, backend, and infra as the deployment demands — with proven experience building and shipping production software (
    Python
    ,
    Javascript/Typescript
    , or similar).

  • Proven experience building and running
    GenAI PoCs
    end-to-end: prototyping fast with LLMs/agents, then hardening what works into something a customer can actually run in production.

  • Solid understanding of systems and how they integrate — APIs, data pipelines, microservices, event-driven architectures — and the judgment to know where deep integration is worth the effort and where it isn't.

  • A pragmatic
    80/20 instinct
    : you ship the 20% that unblocks the customer's real problem instead of gold-plating the other 80%.

  • Experience working directly with customers — PoCs, technical scoping, on-site deployments, or a similar consulting/pre-sales-adjacent engineering background.

  • Familiarity with
    ERP/CRM systems
    is a strong plus.

  • Genuinely
    product-minded
    : you instinctively separate what a customer says they want from what they actually need, and you enjoy shaping the roadmap, not just executing it.

  • Excellent communication skills in
    English
    and
    German (C1 or above)
    ;
    Swiss German
    is a strong plus.

  • Comfortable with regular travel to customer sites across DACH.

  • Strong sense of ownership
    : you treat what you deploy as yours to run, not just to hand off.

Benefits

  • Autonomy and Ownership
    : You're in charge of your time at Hoshii; decide what you want to do, align with the team, and go for it!

  • Stock Options
    : Ever owned your impact? Well, at Hoshii you get stock options, allowing you to get something back from our collective success story.

  • A World-Class Team
    : We're a team of servant leaders who work hard and put customers first; we hail from top companies and universities, and we hold ourselves to the highest standards.

  • Amazing Office Location
    : We have a lakeside location in Zürich with cozy corners to relax, fostering a comfortable environment where you can thrive.

This is a saved copy of a posting published elsewhere. Postings get taken down without notice — check the employer's site before applying. mentors.coach is not the hiring party.

Backend Engineer

Senior SAP Treasury & Risk Management Consultant (m/w/d) - Freelance

Sidekick Network

Basel

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Role description

Für die Erweiterung eines bestehenden S/4HANA-Transformationsprojekts im Transportation-Umfeld suchen wir einen erfahrenen
SAP Treasury & Risk Management Consultant (m/w/d)
. Im Mittelpunkt stehen die Konzeption und Umsetzung einer neuen Treasury-Landschaft auf Basis von SAP S/4HANA sowie der nachhaltige Know-how-Transfer in das interne Team.

Projektrahmen

  • Start:
    Oktober 2026

  • Laufzeit:
    Ende 2027

  • Auslastung:
    80–100 %

  • Einsatzort:
    überwiegend remote

  • Vor-Ort-Anteil:
    ca. 10–15 % in Bern, Schweiz

  • Vertragsart:
    Freelance

  • Sprache:
    Deutsch (muss) und Englisch

Aufgaben

  • Konzeption und Implementierung von S/4HANA-Lösungen im Bereich Treasury & Risk Mgmt. einschließlich Analyzer und FX Exposure Mgmt.

  • Customizing und Umsetzung der entwickelten Lösungen mit konsequenter Nutzung des SAP-Standards

  • Konzeption und Anbindung von Handelsplattformen sowie angrenzenden SAP- und Non-SAP-Systemen über SAP TPI

  • Analyse und kritische Bewertung fachlicher und technischer Anforderungen sowie Entwicklung geeigneter Lösungsvarianten

  • Aktive Mitarbeit bei Design, Implementierung, Datenmigration, Testing und Fehleranalyse

  • Unterstützung des stabilen Betriebs der bestehenden SAP-Landschaft einschließlich Support und Incident Management

  • Erstellung von Analysen, Entscheidungsgrundlagen sowie strukturierter und nachvollziehbarer Dokumentation

Qualifikation

  • Mehrjährige praktische Erfahrung mit SAP S/4HANA Finance und Schwerpunkt auf Treasury & Risk Management

  • Fundierte Projekterfahrung mit SAP TRM einschließlich Analyzer

  • Nachweisbare praktische Erfahrung mit FX Exposure Mgmt.

  • Sehr gute Kenntnisse im S/4HANA-Customizing sowie in der Implementierung entsprechender Lösungen

  • Erfahrung mit Datenmigration, vorbereitenden Migrationsaktivitäten und Systemintegrationen

  • Sehr gutes Verständnis durchgängiger Treasury-Prozesse sowie die Fähigkeit, komplexe Anforderungen in umsetzbare Lösungsdesigns zu überführen

  • Erfahrung aus komplexen S/4HANA-Transformations- oder Implementierungsprojekten

  • Deutsch mindestens auf C1-Niveau und Englisch mindestens auf B2-Niveau

This is a saved copy of a posting published elsewhere. Postings get taken down without notice — check the employer's site before applying. mentors.coach is not the hiring party.

Backend Engineer

IT Application Manager 100% (gn)

SPS

Opfikon

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Role description

WIR VERBINDEN DIE PHYSISCHE UND DIE DIGITALE WELT

SPS ist ein führender Outsourcing-Anbieter für Business Process Services, innovativer Dienstleistungen im intelligenten Datenmanagement sowie für die hybride Arbeitswelt. Schweizer Qualität, kombiniert mit globaler Präsenz, tiefer Branchenkenntnis und neusten Technologien, machen SPS zu einem verlässlichen Partner für die Transformation von Unternehmen.

Mit ganzheitlichen End-to-End-Lösungen unterstützt SPS Unternehmen dabei, ihre Geschäftsprozesse effizienter, agiler und zukunftsorientiert zu gestalten. Über 8.500 Mitarbeitende und spezialisierte Partner betreuen Kunden in mehr als 20 Ländern – mit einem Schwerpunkt auf den Branchen Banken, Versicherungen und Gesundheit.

DEINE AUFGABEN

In dieser vielseitigen Funktion bist du für den Betrieb, die Weiterentwicklung und die Optimierung unserer Dokumentenmanagement- und Automatisierungslösungen verantwortlich. Dabei arbeitest du eng mit internen Teams zusammen und leistest einen wichtigen Beitrag zur Digitalisierung der Geschäftsprozesse unserer Kunden.

  • Installation, Konfiguration, Wartung und Weiterentwicklung unserer Dokumentenmanagement- und Automatisierungslösungen
  • Sicherstellung eines stabilen und sicheren Applikationsbetriebs für Kunden aus den Bereichen Banken, Versicherungen und öffentliche Verwaltung
  • Verantwortung für ISAE-relevante Systeme sowie Sicherstellung der Einhaltung von Compliance-, Sicherheits- und Qualitätsstandards
  • Mitarbeit bei internen und externen Audits sowie Umsetzung entsprechender Anforderungen
  • Analyse, Fehlerbehebung und Performance-Optimierung von Applikationen in enger Zusammenarbeit mit den Entwicklungsteams
  • Identifikation von Optimierungspotenzialen in bestehenden Systemen, Services und Betriebsprozessen
  • Mitarbeit in IT-Projekten sowie Unterstützung bei der Einführung neuer Lösungen und Technologien
  • Weiterentwicklung und Automatisierung von Services und Betriebsabläufen
  • Erstellung und Pflege technischer Dokumentationen und Betriebsdokumentationen in Deutsch und Englisch
  • Übernahme von Aufgaben im Application Management sowie kontinuierliche Optimierung der Betriebsprozesse

DEIN PROFIL

  • Abgeschlossene Ausbildung oder Weiterbildung in Informatik oder Wirtschaftsinformatik (HF/FH oder vergleichbar)
  • Mehrjährige Berufserfahrung im Application Engineering, System Engineering oder einer vergleichbaren Funktion
  • Erfahrung in der Planung, Implementierung und dem Betrieb von IT-Systemen und Applikationen
  • Gute Kenntnisse in Windows-Server-Umgebungen sowie Datenbanken; Linux-Kenntnisse sind von Vorteil
  • Analytische und strukturierte Arbeitsweise sowie Freude an der Lösung technischer Problemstellungen
  • Hohe Service- und Kundenorientierung sowie ausgeprägte Kommunikationsfähigkeiten
  • Interesse an modernen IT-Technologien und Bereitschaft zur kontinuierlichen fachlichen Weiterentwicklung
  • Freude an der Zusammenarbeit in interdisziplinären Teams
  • Sehr gute Deutsch- sowie gute Englischkenntnisse in Wort und Schrift
  • Ein einwandfreier Strafregister- sowie Betreibungsregisterauszug wird vorausgesetzt.

Deine Benefits

  • Ein zukunftsorientierter Arbeitgeber, der die Digitalisierung der Schweizer Wirtschaft vorantreibt
  • Ein dynamisches Umfeld in einer Schweizer Unternehmung mit globalen Strukturen
  • Zentraler Arbeitsplatz in Glattbrugg mit Möglichkeit zum Homeoffice
  • Beteiligung an Reka-Checks sowie Gesundheitsvorsorge/ Fitnessabo
  • Zuschüsse für ÖV-Abos und gratis Business Halbtax-Abo
  • Attraktive Mitarbeiterrabatte für viele Marken und Produkte

Wir setzen uns aktiv für Gleichstellung und Diversität ein. Alle qualifizierten Bewerbenden werden unabhängig von Geschlecht, Geschlechtsidentität, Alter, Herkunft, Religion, sexueller Orientierung oder Beeinträchtigung berücksichtigt.

This is a saved copy of a posting published elsewhere. Postings get taken down without notice — check the employer's site before applying. mentors.coach is not the hiring party.

Backend Engineer

Enterprise Architect - ETRM

Alpiq

Olten

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Role description

Olten - 100% | Permanent

D&C Technology is a functional unit that supports Alpiq’s Business Area Digital & Commerce with management systems for the trading, origination and energy sales businesses, including the delivery of digital solutions for customers from the industrial, commerce and energy sectors.

We are hiring an Enterprise Architect - ETRM who could be based either in Lausanne or Olten, CH.

Your primary responsibilities will be to establish and maintain an architectural vision, provide architecture support and guidance to technology and IT activities in line with the vision, drive the shift towards a simplified, microservices architecture and the reuse of assets and services and to pursue the changes requiredto achieve business and technology.

Your accountabilities

  • Establish and maintain a technology strategy of D&C, including architectural and other design/technology/security standards in line with enterprise standards, policies and guidelines, and represent D&C interests in various enterprise architecture workgroups
  • Establish, maintain and ensure adherence to architectural principles, methodologies, frameworks and approaches, including best practices of cloud architectures, either using the relevant Design Authority, project or line management
  • Ensure architecture activities, decisions and recommendations are motivated by clear business benefits with transparency on risks, ensure follow-up communication activities related to achieved business benefits and/or risk management activities
  • To maintain an architecture repository for D&C in accordance with the agreed architecture framework, capturing architecture documentation and agreed architectural views
  • To contribute to project ideas, projects, demands, and PoCs by-Supporting the scoping of new activities, services and changes to existing services-Analyzing and translating business, information, technical requirements into an architectural blueprint that outlines solutions to achieve the business objectives, ensuring that the blueprint capture both functional and non-functional requirements-Communicating, presenting and iterating architectural views and supporting material with development teams, management, and business stakeholders.-Providing landscape-wide knowledge across multiple technical areas and business segments to ensure dependencies and risks are accurately captured-Ensuring technical solutions and changes on the D&C technology landscape are in line with the architectural vision, principles and standards set out by the relevant design authority-Elaborating and/or reviewing low-level architecture design together with Software Engineers-Perform architectural reviews and prepare conformance reports for development teams, Business Partners, business stakeholders and management
  • Contribute to the continuous improvement of IT governance, policies and maturity within D&C and at an enterprise level
  • To work closely with Business Partners, Business Analysts, Project Managers, technical experts and project resources to achieve common objectives; especially to assist and review the work of peer Architects and Business Analysts
  • Adhere to the D&C Technology Information Security Management System in your area of responsibility

Your profile

  • 8+ years of experience and a background of working with enterprise/solutions architecture,systems integration, and software engineering
  • Minimum of a bachelor’s degree or an equivalent certification, ideally in an engineering, computer science, or similar technical discipline
  • Experience in architecture standards, frameworks and tools, including security best practices; TOGAF (or similar) certification, experience in UML 2.x, BPMN 2.0, and/or ArchiMate is preferred
  • Experience with architecting cloud solutions for the AWS cloud platform; AWS Architect certification and experience with designing secure, microservices and APIs is an advantage
  • Experience of software development methodologies (e.g. Agile, DevOps) and requirements engineering is expected, preferably with certifications, ideally including awareness of project management methodologies
  • Deep knowledge of the trading and/or energy sectors, including related business processes
  • Strong knowledge of how applications, technology and IT services can support business processes
  • Good communications, presentation and inter-personal skills; team and goal oriented, analytical and problem-solving skills are highly valued
  • Fluent in English; competency in German and French is advantageous

Your benefits

Competitive salary package

Market-oriented salary

Training and development

Diverse opportunities for career growth

Flexible work models

Various flexible work models

This is a saved copy of a posting published elsewhere. Postings get taken down without notice — check the employer's site before applying. mentors.coach is not the hiring party.

254 more openings in this category and country

Senior C#.NET DeveloperCryptonow · Switzerland

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