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Backend Engineer

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Backend Engineer

Senior Software Engineer, Core Banking (80-100%)

Sygnum Bank

Zurichcontractsenior

Apply on the employer's site

Role description

About Sygnum

Sygnum is a global digital asset banking group, founded on Swiss and Singapore heritage. We empower professional and institutional investors, banks, corporates and DLT foundations to invest in digital assets with complete trust. Our team enables this through our institutional-grade security, expert personal service and portfolio of regulated digital asset banking, asset management, tokenisation and B2B services.

In Switzerland, Sygnum holds a banking licence and has CMS and Major Payment Institution Licences in Singapore. The group is also regulated in the established global financial hubs of Abu Dhabi and Luxembourg.

We believe that the future has heritage. Our crypto-native team of banking, investment and digital asset technology professionals are building a trusted gateway between the traditional and digital asset economies that we call Future Finance. To learn more about how Sygnum’s mission and values are shaping this digital asset ecosystem, please visit sygnum.com and follow us on LinkedIn and X.

Our Values

A key pillar of our success are the Sygnum values that define and unite us a team. We proudly call them our SYGN values:

  • S
    stands for the importance we hold in Seeking and seizing opportunities, and the way we take personal ownership for delivering results for our clients;
  • Y
    represents the way we say Yes to maintaining the highest level of integrity and fairness in everything we do. Sygnumers always display confidence without attitude;
  • G
    reminds us to always Grow and win together. We only succeed by supporting each other and challenging ourselves, and our team-mates, to reach for new heights;
  • N
    is here for Nose for value because we are always looking to focus on what matters most to our clients, partners and team.

Sygnum has one of the most diverse teams in the industry. Diversity plays a central role in keeping our work culture open, our teams productive and energised, and our solutions at the forefront of the industry. In the spirit of our SYGN value to “grow and win together”, we fully embrace an equal opportunity mindset in the way we onboard, develop and promote our team members.

About the role

You will join a team of engineers responsible for building processes and interfaces that connect Sygnum’s digital asset solutions with our core banking platform. Your work will ensure seamless synchronization between digital assets and core banking operations.

As a senior software engineer, you will play a key role in advancing these integrations across business domains, driving scalability for booking processes, and ensuring the quality and reliability of our systems. You will also design and maintain API-based features (such as balance retrieval, account transfers, payments, trading, and messaging) to meet evolving client and business needs.

Your main responsibilities:

  • Actively participate in developing new features and improvements by writing and reviewing high-quality, secure code with comprehensive test coverage
  • Constantly enhance the quality and security of applications, identifying existing technical debt and making plans to repay it
  • Respond to production incidents promptly and efficiently, collaborating with cross-functional teams to resolve issues and restore service continuity
  • Collaborate with platform engineers to enhance CI/CD pipelines and streamline release processes
  • Collaborate with site reliability engineers and solution architects to optimize application availability, resilience, and observability
  • Nurture and guide more junior software engineers through coaching and mentoring

Our ideal candidate

  • You like to create scalable backend services based on our tech-stack: Java running on AWS.
  • You have a collaborative and growth mindset
  • You care about quality and security and bake those aspects in the software development lifecycle
  • You are comfortable taking ownership of the whole development lifecycle, from designing solutions to running the application in production
  • You are proactive and get motivated with new opportunities and challenges

What will make you stand out:

  • Expertise in Java (21+)
  • Expertise in Quarkus (or Spring)
  • Expertise in working with RDBMS (ideally Postgres).
  • Working experience with utilizing Kafka.
  • Working experience with caching frameworks (ideally Redis)
  • Designing flexible and robust REST APIs with an API-first approach.
  • Understanding microservices, event-driven architecture and being able to implement complex functionality with high quality and security.
  • Working knowledge of Docker and containerization
  • Experience working with Kubernetes.
  • Experience working with AWS is beneficial.
  • Experience working with Typescript and with some UI framework (React, Angular) is beneficial

Our engineering culture:

  • Team first mindset. The team above its individuals
  • Our people always first. Everything starts there
  • We deliver frequently, with high quality and security. Yup, that’s right.
  • We celebrate success and learn from failures. The key to a healthy balance.
  • We are pragmatic and look for simplicity. KISS everywhere
  • We have positive impact. We deliver results.

Our Offer

Joining Sygnum means being part of a dynamic, global team that is building a trusted gateway between the traditional and digital asset economies. Working at Sygnum, you will experience our fast-paced, exciting work environment that embraces meritocracy and collaboration and open communication. Alongside our ambitious long-term mission, we also come together for reaching important milestones and annual crypto-industry anniversaries like Bitcoin Pizza Day, and regularly celebrate together at themed company events as part of our journey to shape Future Finance.

Sygnum offers a comprehensive package of benefits for all team members. They include:

  • Attractive combination of market salaries and entrepreneurial incentive scheme
  • Flexible/Work at home policies
  • Professional development via Mentoring and Buddy programs
  • One-month fully paid sabbatical after five years of continuous employment

If you are passionate about the potential of blockchain to share Future Finance and your profile is a good fit for this position, please send us your CV today!

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

Backend Software Engineer

mygrid AG

Bruggfulltime

Apply on the employer's site

Role description

mygrid ist ein innovatives, softwarefokussiertes Startup im Bereich E-Mobilität und erneuerbare Energien. Wir entwickeln unsere Plattform grösstenteils in-house und verbinden in der mygrid Cloud Ladestationen, Energiezähler, Gateways und weitere IoT-Geräte in Gebäuden auf einer zentralen Plattform.

Damit ermöglichen wir Bewohner:innen von Mehrfamilienhäusern sowie Verwaltungen intelligentes Laden, die Visualisierung von Energiedaten sowie die automatisierte und nahezu Echtzeit-basierte Abrechnung von Energie inklusive Solarstrom.

Unsere Mission ist es, die Art und Weise zu revolutionieren, wie Menschen Energie nutzen und mit ihr interagieren.

Hört sich spannend an? Dann werde Teil unseres Teams als Backend Software Engineer und entwickle mit uns die Energiemanagementplattform von morgen.

Aufgaben

  • Design, Entwicklung und Wartung unserer cloudbasierten Backend-Systeme und Infrastruktur

  • Weiterentwicklung skalierbarer Services zur Verarbeitung und Speicherung von grossen mengen an Energie-, IoT- und (Echtzeit)-Zeitreihendaten

  • Sicherstellung von Skalierbarkeit, Zuverlässigkeit und Sicherheit unserer Plattform gemäss den hohen Anforderungen der Energiebranche

  • Implementierung und Optimierung interner und externer API-Schnittstellen

  • Integration von Energiezählern, Gateways und weiteren IoT-Geräten

  • Kontinuierliche Verbesserung unserer Architektur, Deployment-Prozesse und Codebase

  • Mitgestaltung technischer Entscheidungen und Software-Architektur

Qualifikation

Must-haves

  • Nachgewiesene Erfahrung als Software Engineer mit Schwerpunkt Backend

  • Sehr gute Kenntnisse in Python

  • Erfahrung mit APIs, Datenbanken und Cloud-Infrastrukturen

  • Verständnis für die Skalierung von Systemen

  • Motivation, sich in neue Technologien und Themenbereiche einzuarbeiten

  • Strukturierte und eigenverantwortliche Arbeitsweise

  • Proaktive Kommunikation

  • Gute Deutsch- und / oder Englischkenntnisse

Nice-to-haves

  • Erfahrung im Bereich IoT (OCPP/OCPI, Modbus, MQTT, Webhooks, Streaming etc.)

  • Interesse an E-Mobilität, Energiemanagementsystemen und erneuerbaren Energien

  • Freude an sauberem, wartbarem Code sowie Performance-Optimierung

Benefits

  • Impact: die Möglichkeit, die Energiewende in Gebäuden konkret mitzugestalten

  • Eigenverantwortung und Freiraum: kurze Entscheidungswege und viel Gestaltungsspielraum

  • Starkes Produkt: die mygrid Cloud als zentrale Plattform für Elektromobilität und Energiemanagement, wir fahren einen best-in-class approach

  • Teamspirit: ein junges, unkompliziertes Team, das gemeinsam anpackt

  • Flexibilität: hybrides Arbeiten, moderne Tools & flexible Arbeitgestaltung

  • Standort: Ein modernes Büro direkt am Bahnhof Brugg

Jede Zeile Code kann die Energiezukunft ein Stück besser machen. Die Energiewende braucht nicht nur gute Ideen, sondern exzellente Software. Hilf mit, sie zu entwickeln. Wir freuen uns auf deine Bewerbung.

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

Machine Learning Engineer 100% (f/m/d)

Julius Baer

Zurich

Apply on the employer's site

Role description

At Julius Baer, we celebrate and value the individual qualities you bring, enabling you to be impactful, to be entrepreneurial, to be empowered, and to create value beyond wealth. Let’s shape the future of wealth management together.

We are seeking a skilled machine learning engineer (ML Eng) to join one of our agile development teams in our ML & AI ART. In this role, you will play a key part in designing, building, and maintaining robust, scalable AI solutions within a DevOps environment. You'll contribute across the entire lifecycle - from concept to deployment - and collaborate closely with cross-functional teams to deliver high-quality digital solutions.

YOUR CHALLENGE

  • Develop, deploy, and optimize machine learning and AI solutions that address complex business challenges.
  • Create multi-agent systems and equip AI models with function/tool-calling capabilities
  • Design and implement RAG systems to ground AI responses in enterprise data
  • Assess and integrate AI models (e.g. LLMs) ensuring optimal performance and reliability
  • Optimize agentic workflows and AI agents for production use cases
  • Testing and optimizing system prompts and few-shot example to ensure accurate , consistent, and safe AI outputs
  • Performance evaluation of machine learning and AI models using appropriate metrics, evaluation sets and techniques, and continuously iterate and improve upon them
  • Collaborate with platform teams, data engineers, data scientists, and other stakeholders to integrate machine learning solutions into existing systems and processes
  • Participate in code reviews, testing, and debugging to ensure the quality and reliability of machine learning solutions

YOUR PROFILE

  • Strong problem-solving and analytical skills, with the ability to think critically and creatively about complex challenges
  • Excellent communication and collaboration skills, with the ability to work effectively with cross-functional teams and stakeholders at all levels of the organization
  • Ability to manage personal workloads effectively, to prioritize tasks, manage timelines, and deliver high-quality results on schedule
  • Continuous learning mindset, with a passion for staying up-to-date with the latest advancements in machine learning and artificial intelligence
  • Attention to detail and commitment to producing high-quality, reliable, and maintainable code
  • Bachelor's or Master's degree in Data Science, Computer Science, Mathematics, Statistics, or a related field
  • Strong programming skills in Python with experience in machine learning libraries and deep learning frameworks such as TensorFlow or PyTorch
  • Proven experience working with Large Language Models (LLMs)
  • Good understanding of AI agents & agentic workflows, LLM orchestration frameworks and reasoning patterns
  • Experience with data preprocessing, feature engineering, and model selection and evaluation techniques
  • Knowledge of statistical and mathematical concepts relevant to machine learning, such as probability, linear algebra, and optimization
  • Understanding software development best practices, including version control, testing, and documentation
  • Excellent problem-solving and debugging skills, with the ability to identify and resolve issues quickly and effectively
  • Relevant work experience in machine learning, data science or a related field

We are looking forward to receiving your full job application through our online application tool. Further interesting job opportunities can be found on our Career site.

Is this not quite what you are looking for? Set up a
job alert
by creating a candidate account here.

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

Full-Stack Engineer (startup generalist)

UpCircle

Zurich

Apply on the employer's site

Role description

About this role

We are seeking a Full-Stack Software Engineer to strengthen our engineering team. In this role you will help design, build, and ship new functionality across our stack: From back-end services and cloud infrastructure to the applications our customers rely on inside recycling plants.

This is a hands-on engineering role for someone who thinks end-to-end. You will take on real engineering challenges: reasoning through the logic, drafting the architecture, deciding how a solution should be deployed and served, and then implementing it. As a small, fast-moving startup, we need someone comfortable working across the full stack and able to own a challenge from idea to production, a true startup generalist.

Responsibilities

  • Take engineering challenges end-to-end - define the logic, draft the architecture, decide how the solution is deployed and served, and implement it. •
  • Design, build, and deploy back-end services and APIs on Google Cloud, using Cloud Run, VMs and Firebase Functions.•
  • Model, store, and serve data reliably with Firebase and NoSQL databases.•
  • Write clean, maintainable Python across services and internal tooling.•
  • Containerize and ship applications with Docker, using Git/GitHub for version control.•
  • Contribute to front-end applications (React, and potentially Swift-iOS).•
  • Maintain high standards for code quality, scalability, and reliability in production environments.

Requirements

  • A university degree in computer science, computer engineering, or related field. •
  • Several years of software engineering experience across the stack.•
  • Strong proficiency in Python and solid general software engineering fundamentals.•
  • Proven ability to solve engineering challenges end-to-end, from logic and architecture through to deployment and serving.•
  • Experience with cloud and serverless technologies (Google Cloud, Cloud Run, Firebase Functions).•
  • Experience with NoSQL databases (Firebase).•
  • Experience with Docker and Git/GitHub.•
  • Comfortable working autonomously in a fast-paced startup environment with high ownership.•
  • Strong communication and collaboration skills.

Nice to Have

  • Front-end development experience with React.•
  • iOS development experience with Swift.•
  • Experience with edge systems: Python on Linux, containerized deployments, and on-device trade-offs.•
  • Familiarity with industrial, IoT, or real-time monitoring systems.•
  • German language skills.

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 Cloud Engineer

Voliro

Zurichsenior

Apply on the employer's site

Role description

Want to become an innovator?
Join us at the forefront of the robotics industry, developing and deploying a new generation of drones capable of physical interaction with the world - which makes them actual flying robots.

Spun off from the world-renowned Autonomous Systems Lab of ETH Zurich in 2019, Voliro was awarded the Top Swiss Robotics Startup 2022 and named one of the Top 10 most innovative companies in robotics 2023 worldwide. In 2024, we won the Swiss Economic Award in the category "Deeptech/Life Sciences".

After releasing our first-generation product in September 2022, we have proven product-market fit in early 2023. Now, our next mission is to scale the business and create an unmatched customer experience around the core product.

Headquartered in Zurich, Switzerland, our growth markets are in North America as well as Europe. Our office in Houston amplifies sales and customer support in North America.

Senior Cloud Engineer
Earliest start date: ASAP

Location: Zurich

Working time: 100%

Your role
Are you passionate about building products end-to-end, from the database to the browser? Do you like ownership over your area of expertise? Do you enjoy working in a dynamic and fast-paced environment? We are seeking a talented and dedicated full-stack engineer to join our team and contribute to our ongoing success.

Your Work

  • Develop features across the entire stack: frontend, backend APIs, and cloud infrastructure
  • Collaborate closely with the cloud and drone platform development teams as well as our product team
  • Write clean, well-structured, and reusable code
  • Ensure quality through automated testing and thoughtful code reviews
  • Evaluate new tools and technologies pragmatically, and know when (not) to adopt them
  • Build AI-powered features into Voliro Cloud, from LLM-based data analysis to assisted operations planning for drone inspections

Benefits
Voliro is an opportunity for you to join a team at the forefront of the robotics industry, a team of pioneers and enthusiasts. You will leverage your experience in a dynamic and multidisciplinary working environment and grow together with Voliro. Innovation is our driver and customer excellence is our mission. We cultivate a transparent, motivating, and progressive company culture. You will get 25 vacation days per year, flexible work hours, and unlimited amounts of high-quality espresso.

Your profile
You Bring The Following Skill Set To The Table

  • Proven track record as a Full Stack Developer
  • Strong command of JavaScript/TypeScript and React. We use Next.js with Shadcn and Tailwind for styling
  • Solid backend experience. We use Go for our backend services, with REST/OpenAPI interfaces, PostgreSQL, and Kubernetes on Google Cloud
  • Visual design sensibilities
  • Ability to establish reusable patterns & components for foundational functionality such as authentication, instrumentation, state management, deployment, etc.
  • Sharp problem-solving skills and attention to detail
  • Strong communication and teamwork
  • Self-driven, hands-on mindset
  • Comfortable with the pace and ambiguity of a startup environment
  • Curiosity and practical experience with AI tools (LLM APIs, MCP servers, AI-assisted development)

Extra Points Awarded For

  • Experience with C++ or other statically typed languages
  • API design fundamentals
  • Mobile development experience (ideally with Flutter, but any framework counts)
  • CI/CD know-how
  • Startup experience

Your application
We are looking forward to receiving your application!

Please note that we are considering complete applications submitted to https://voliroar.bamboohr.com/careers. Please clearly state your residency/working status for Switzerland in your application. We are unable to support work permit applications for non-EU/EFTA nationals without an existing Swiss work permit.

If you have any further questions, feel free to reach out to us via talent@voliro.com.

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.

105 more openings in this category and country

Senior Software Engineer, Core Banking (80-100%)Sygnum Bank · Switzerland

Apply on the employer's site