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Frontend Engineer

Software Engineer

Helsing

Berlinfulltime

Apply on the employer's site

Role description

Who We Are
Helsing is a defence AI company. Our mission is to protect our democracies. We aim to achieve technological leadership, so that open societies can continue to make sovereign decisions and control their ethical standards.

As democracies, we believe we have a special responsibility to be thoughtful about the development and deployment of powerful technologies like AI. We take this responsibility seriously.

We are an ambitious and committed team of engineers, AI specialists and customer-facing programme managers. We are looking for mission-driven people to join our European teams – and apply their skills to solve the most complex and impactful problems. We embrace an open and transparent culture that welcomes healthy debates on the use of technology in defence, its benefits, and its ethical implications.

The role
At Helsing we develop and deliver AI-based capabilities and the enabling infrastructure that allow semi-autonomous platforms to localise, navigate, and perceive the world in real time. We build software that is subject to significant and unorthodox technical constraints, must operate in a wide variety of constantly-changing environments, and has to support an ever-growing list of challenging use-cases. What we build ultimately ends up in the hands of real people in high-risk, high-stress situations, so
must
be both reliable and frictionless. Taken together, this brings a whole host of interesting engineering challenges across a wide variety of fields that you’ll help us solve. To give some examples:

  • Distributed systems (e.g., intermittent connectivity and byzantine actors)
  • Embedded computing (e.g., resource-constrained compute and reverse-engineering)
  • Robotics (e.g., control systems and tasking)
  • Networking (e.g., long-range low-bandwidth radios and cross-medium routing)
  • Deployment infrastructure (e.g., air-gapped devices and heterogenous fleets)
  • Security (e.g., data sharing in low-trust, no-TLS networks and actually-secret data handling)
  • Machine learning (e.g., systems for model development, storage, and dissemination)

In several of these areas, we are working near the state-of-the-art; we actively read (and sometimes implement) research papers, and often need to push even further to make theory work in practice. In others, we are applying well-known techniques to real-world situations (with real-world limitations) that have never been used in before, which requires skill, diligence, and honing a deep understanding of the underlying technologies.

The day-to-day

  • Review code contributions, proposals, and RFCs from colleagues. At Helsing we strongly believe that unblocking others takes precedence over spending more time on your own work.
  • Propose and implement new features, capabilities, algorithms, infrastructure, or even full products across our stack. We encourage our engineers to look beyond their immediate team for missed opportunities, and to speak up when they identify one.
  • Become a mentor, find a mentee, and help support and develop our interviewing pipeline. The people make or break the company, and we want as many engineers as possible to be part of fostering and growing the organisation.
  • Share your experience and technical know-how with other Helsingers. We host tech talks, get together for smaller “let’s learn together” groups, run topical office hours (e.g., on Rust), etc. to help each other get better with time.
  • Maintain our existing software stack, including working with internal and external customers to identify issues, improving operational reliability and performance, and fending off technical debt. The stack is a mix of Rust and Python, with Python mainly living in the ML-heavy sections.
  • Further develop our tests and benchmarks, both at the micro and macro level. We operate in a domain where robustness is of the utmost importance, and an extensive and ever-improving test suite is key to achieving that. And without thorough benchmarks, we would be flying blind.
  • Present your work at our weekly demo sessions. We want engineers to come together around what they are working on and to feel like they are not endlessly squirrelling away at something that doesn’t matter. To that end, we host (and actively work towards) demo sessions that allow early feedback, celebration of progress, and a better shared understanding of everything that goes on at Helsing.

You should apply if you

  • Can write legible, maintainable, and performant code.
  • Communicate well in English, both verbally and in writing.
  • Enjoy collaborating with others, including reviewing code and pair programming.
  • Are comfortable working asynchronously (writing PRs and RFCs, having discussions by email).
  • Have backend development experience, ideally with a language like Rust, Java, Go, or C++.
  • Are familiar with backend interface tools like REST, GraphQL, gRPC/Protocol Buffers, and Arrow.
  • Strive to improve yourself, your peers, and the culture you work in over time.
  • Feel like ethical considerations are an inherent part of engineering.

Note: We operate at an intersection where women, as well as other minority groups, are systematically
under-represented. We encourage you to apply even if you don’t meet all the listed qualifications; ability and impact cannot be summarised in a few bullet points.
Nice to have

  • Rust and Python specifically.
  • Container-based and cloud-native application architectures (e.g., Docker, Azure, AWS).
  • Metrics tooling (e.g., Prometheus, Grafana, ELK).
  • SQL and streaming database systems.
  • Routing protocols (e.g., IGP, BGP).
  • Cryptographic protocols (e.g., Signal, WireGuard).
  • Hardware interfaces (e.g., Arduino).
  • Robotics (e.g., control systems).
  • Production ML systems.

Join Helsing and work with world-leading experts in their fields

  • Helsing’s work is important. You’ll be directly contributing to the protection of democratic countries while balancing both ethical and geopolitical concerns.
  • The work is unique. We operate in a domain that has highly unusual technical requirements and constraints, and where robustness, safety, and ethical considerations are vital. You will face unique Engineering and AI challenges that make a meaningful impact in the world.
  • Our work frequently takes us right up to the state of the art in technical innovation, be it reinforcement learning, distributed systems, generative AI, or deployment infrastructure. The defence industry is entering the most exciting phase of the technological development curve. Advances in our field of world are not incremental: Helsing is part of, and often leading, historic leaps forward.
  • In our domain, success is a matter of order-of-magnitude improvements and novel capabilities. This means we take bets, aim high, and focus on big opportunities. Despite being a relatively young company, Helsing has already been selected for multiple significant government contracts.
  • We actively encourage healthy, proactive, and diverse debate internally about what we do and how we choose to do it. Teams and individual engineers are trusted (and encouraged) to practise responsible autonomy and critical thinking, and to focus on outcomes, not conformity. At Helsing you will have a say in how we (and you!) work, the opportunity to engage on what does and doesn’t work, and to take ownership of aspects of our culture that you care deeply about.

What We Offer

  • A focus on outcomes, not time-tracking
  • Competitive compensation and VSOP options
  • Relocation support
  • Social and education allowances
  • Regular company events and all-hands to bring together employees as one team across Europe
  • A hands-on onboarding program (affectionately labelled “Infraduction”), in which you will be building tooling and applications to be used across the company. This is your opportunity to learn our tech stack, explore the company, and learn how we get things done - all whilst working with other engineering teams from day one

Helsing is an equal opportunities employer. We are committed to equal employment opportunity regardless of race, religion, sexual orientation, age, marital status, disability or gender identity. Please do not submit personal data revealing racial or ethnic origin, political opinions, religious or philosophical beliefs, trade union membership, data concerning your health, or data concerning your sexual orientation.
Helsing's Candidate Privacy and Confidentiality Regime can be found 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.

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Frontend Engineer

Senior Frontend Engineer, AI Product UX

Stacksync - Integration Cloud

Munichfulltimesenior

Apply on the employer's site

Role description

What Makes this Role Different

Most AI products help individuals save minutes. Stacksync helps companies run their operations. Our enterprise AI is built on years of expertise in connectors, syncs, and workflow orchestration, allowing businesses to automate the processes that directly impact e-commerce, supply chain, logistics, operations.

Under the hood, the product handles deep technical infrastructure: asynchronous jobs, data mappings, approvals, errors, retries, and multi-system orchestration.

Your job is to make that
complexity disappear
.

What You Will Do

  • Design and build polished frontend experiences for enterprise AI agents and workflows.
  • Translate complex backend states into simple, predictable user flows. You will dive deep into our backend capabilities to truly understand how our AI agents work, and then distill those complex flows into frictionless user journeys.
  • Partner directly with the founders to turn prioritized product directions into polished frontend experiences, owning the UX details, interaction design, frontend architecture, implementation, and iteration.
  • React + IBM Carbon components.

You Might Be a Great Fit If

  • You are a senior frontend engineer, with exceptional UX instincts and product taste.
  • You can understand complex technical systems and turn them into simple product experiences.
  • You are comfortable working without perfect specs and can make strong product decisions independently.
  • You move fast, communicate clearly, and care deeply about attention to details.
  • You care about hierarchy, loading states, empty states, error states, edge cases, and micro-interactions. This is an Enterprise product, not a vibe coded UI full of bugs.
  • You have experience working with these enterprise systems (CRM, ERP, etc)

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.

Frontend Engineer

Senior Engineering Manager (d/f/m)

Leapsome

Berlinfulltimesenior

Apply on the employer's site

Role description

What is Leapsome?
Leapsome is the
AI-powered people platform
revolutionizing HR for modern teams
. Leapsome drives HR excellence and empowers high-performing teams by automating, connecting, and simplifying every HR process across the employee lifecycle — from onboarding and performance management to engagement and development. Built with ease of use in mind, our platform ensures high adoption by employees, managers, and People teams alike.

Our purpose is to make work fulfilling for everyone
, and
our vision is to
reshape the future of work
by being the leading People platform for HR excellence and high-performing teams. We enable companies to create environments where people can achieve their goals, learn and grow together, and build genuine motivation & engagement.

Trusted by thousands of organizations globally, Leapsome secured $60 million in Series A funding led by Insight Partners in March 2022. This funding allowed us to further develop our intelligent platform, create exceptional employee experiences, and expand into the US market.

It’s an incredibly exciting time to join Leapsome and be part of reshaping the future of work!

Your opportunity:
Join a lean, high-performing product engineering team that's reshaping the future of work. At Leapsome, we empower senior engineering leaders to drive impact through a unique blend of technical depth, strategic thinking, and people-first leadership.

As a Senior Engineering Manager, you'll take ownership of one of our People Enablement-focused cross-functional squads, responsible for core product areas such as reviews, goals, instant feedback meetings, learning management system, and calendar integrations. This is a high-impact role that goes beyond team delivery, you’ll help shape our workflows, scale our engineering culture, and mentor fellow Engineering Managers while contributing to cross-squad leadership topics.

We’re looking for someone who combines sharp technical instincts with a strong sense for people and product. You will code alongside your team, elevate engineers and leaders around you, and act as a multiplier for productivity, alignment, and innovation across the department. You’ll guide engineers toward thoughtful, scalable decisions emphasizing simplicity & maintainability instead of over-engineering, focusing on core user challenges with a strong product engineering mindset, and planning for long-term growth. You’ll champion a culture that values asking the right questions, challenging assumptions, and developing sound judgment across the team.

You will:

  • Lead, coach, and grow a team of highly capable engineers, supporting their career development, motivation, and performance
  • Own the technical strategy and delivery of HRIS modules, navigating complex workflows, compliance, and scale
  • Collaborate with Product, Design, Legal, and Leadership to ensure your squad delivers secure, scalable, and user-focused solutions
  • Stay hands-on and contribute code regularly, especially in moments of complexity, risk, or when unblocking the team
  • Drive architectural decisions, advocate for quality, and ensure consistent, pragmatic engineering practices
  • Guide engineers to avoid over-engineering, prioritize high-impact solutions, and foster sustainable, scalable decision-making
  • Encourage long-term thinking, clear trade-offs, and curiosity-driven problem solving
  • Evolve and improve our workflows, team structure, and use of tooling (incl. AI), with a focus on productivity and sustainability
  • Own communication with stakeholders, proactively aligning priorities, sharing context, and providing visibility into progress
  • Shape squad rituals, performance expectations, and decision-making frameworks, balancing autonomy with alignment

What is the technology stack?

  • Frontend: Vue.js, TailwindCSS, and a modern design system for a consistent, intuitive user experience
  • Backend: Node.js (TypeScript) with Express, MongoDB and NATS, built for scalability and modularity
  • AI/LLMs: Integration of state-of-the-art AI technologies, like GPT from OpenAI and LangChain, to create smarter workflows and enhance functionality
  • Infrastructure: Docker and AWS, ensuring robust CI/CD pipelines and scalable infrastructure
  • Testing: Automated testing using Playwright, Vitest, Mocha/Chai, and other tools to maintain high-quality, reliable codebases
  • Analytics: Mixpanel, Sentry, Datadog and custom solutions for data-driven development and monitoring
  • Collaboration: GitHub, Notion, and async communication tools for transparent teamwork

You’ll be a good fit if you:

  • Have 6+ years of experience as a software engineer and 4+ years as an engineering manager, with a track record of growing people and delivering impactful software
  • Are comfortable working across the stack and willing to dive into code when necessary
  • Have led teams working on transactional, compliance-sensitive systems (e.g. HRIS, payroll, finance, SaaS platforms)
  • Combine technical depth with a passion for people leadership and coaching
  • Demonstrate strategic thinking, strong prioritization, and the ability to communicate with clarity across levels
  • Are experienced in collaborating with cross-functional stakeholders and driving alignment
  • Guide engineers to develop strong judgment around complexity, scalability, and long-term value creation
  • Value product thinking, enjoy solving real user problems, and don’t wait to be told what to build
  • Bring a mindset of pragmatic excellence, knowing when to ship and when to refactor
  • Approach challenges with curiosity and humility, always open to learning from others and excited by Leapsome's mission to make work more meaningful

Benefits At Leapsome

  • Impact: Become part of a fast-growing scale-up taking over the People Performance & Enablement space by making work fulfilling for more than two million people by 2025
  • Teammates: Join a diverse and international team of talented, smart, and kind people
  • Feedback and recognition: We value feedback exchange and celebrating successes — big and small
  • Hybrid model: Together we spend 2 days per week in our Berlin office (Tuesdays and Thursdays are our sponsored lunch days, where lunch is provided by Leapsome)
  • Flexible work: Experience a work-life balance with flexible hours and the option of working elsewhere for up to 2 months per year
  • Learning and Development: Develop your skills with a yearly development budget of €2,000 and access to Good Habitz platform
  • Vacation: Take 30 vacation days every year plus public holidays (or upgrade to 40 vacation days at adjusted pay) & benefit from a month-long paid sabbatical after 5 years with Leapsome
  • Health & Wellness: Stay active and healthy with a free Urban Sports Club membership and Oliva subscription
  • Mental health: Access to 1:1 therapy sessions via our mental health partner, plus company workshops and learning pathways on topics like mindfulness and digital wellness
  • Corporate Benefits: Get exclusive discounts and deals from our partners.
  • Work-from-home stipend: Receive a one-time work-from-home stipend of €1,000
  • Monthly team activities: Have fun at monthly team activities like kayaking, laser tag, and game nights
  • Competitive pay and pre-IPO equity package

This role is based in
Berlin
and the salary range for this position is
€100,000 - €150,000 + Bonus + Equity
. View our full compensation framework here.

Leapsome aims to pay generously and fairly. If the listed range isn’t working for your situation, please tell us early in the process, we’d rather have that conversation than lose a great candidate over a number we may be able to address.

If your role or skillset isn’t covered in our compensation framework, it’s likely because we haven’t hired enough in that area yet. We’ll build a data-backed range before we make you an offer, and we’ll share our thinking with you as early as we can.

This note is published for transparency. It reflects our compensation philosophy as of June 2026 and describes our general global approach — it is not a contract, offer, or entitlement to any salary, increase, or bonus, and may change at any time. Individual compensation is always governed solely by your written employment agreement and applicable local law.
Leapsome’s values
We stay true to our values in everything we do at Leapsome.

  • Impact is everything — We aim high, focus on the outcomes that matter and say no to the rest.
  • Speed is our advantage — We move fast with intent — simplifying, automating, and learning as we go.
  • Owners without egos — We trust owners and expect excellence in return. We take responsibility individually, support each other, and win as a team.
  • Candid is kind — We speak up early and respectfully. We assume good intent, stay curious, and care about each other’s growth.

Excited to be part of Leapsome?
😊

Just send us your CV. You won't need to input any information already mentioned on your CV later on - promise! 🤙

A cover letter isn’t necessary, but we’d really appreciate a brief answer to these questions:
Why Leapsome? Why you?
We look forward to getting to know you!

You can find more about what our colleagues think about working at Leapsome here 👉 ✨✨✨ Glassdoor ✨✨✨ Kununu✨✨✨

Don’t meet every single requirement? Studies have shown that women and people of color are less likely to apply for jobs unless they meet every qualification. If you’re excited about this role but your experience doesn’t align perfectly with every qualification in the job description, we encourage you to apply anyways. You may be just the right candidate for this or other roles.
Help us make work fulfilling for everyone!
At Leapsome, we want work to be the best it can be for everyone. We help companies create environments where people can achieve shared goals, build authentic relationships, learn, and grow together.

Put simply; our purpose is to make work fulfilling for everyone. And we know how to get there. But we can only do this by “walking our talk” and building a diverse and inclusive company where people — not just the business — thrive.

Apply now 👇 or keep scrolling to read more about what makes Leapsome a unique workplace!

Compensation Range: €100K - €150K

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.

Frontend Engineer

Software Engineer, Data Transformation

Snowflake

Berlinfulltime

Apply on the employer's site

Role description

At Snowflake, we are powering the era of the agentic enterprise. To usher in this new era, we seek AI-native thinkers across every function who are energized by the opportunity to reinvent how they work. You don’t just use tools; you possess an innate curiosity, treating AI as a high-trust collaborator that is core to how you solve problems and accelerate your impact. We look for low-ego individuals who thrive in dynamic and fast-moving environments and move with an experimental mindset — who rapidly test emerging capabilities to discover simpler, more powerful ways to deliver results. At Snowflake, your role isn't just to execute a function, but to help redefine the future of how work gets done.

We're hiring Software Engineers for our Data Platform team to build and evolve Snowflake's real-time stream processing and data transformation platform. If you've built or researched high-throughput streaming systems or scalable transformation engines - in industry or graduate work - we want to talk.

AS A SOFTWARE ENGINEER, DATA PLATFORM AT SNOWFLAKE, YOU WILL:

  • Design and implement low-latency stream processing and in-flight data transformation systems at global scale
  • Own correctness and performance of streaming execution (watermarks, exactly-once delivery, out-of-order handling)
  • Build transformation primitives and operators that run reliably at cloud-scale throughput
  • Contribute to architectural decisions for our next-generation streaming and transformation platform
  • Write production-quality systems code and collaborate across product and engineering teams

OUR IDEAL CANDIDATE WILL HAVE:

  • BS/MS/PhD in Computer Science or related field — graduate research in streaming, distributed systems, or query/transformation engines is a strong differentiator
  • Deep distributed systems fundamentals: fault tolerance, consistency, state management
  • Hands-on or experience with stream processing or transformation systems (Flink, Kafka Streams, Spark Structured Streaming, or similar)
  • Proficiency in Java, Scala, C++, or Python
  • Familiarity with AI-native software engineering and agentic development workflows

BONUS POINTS FOR:

  • Published research or thesis in streaming, real-time transformation, or distributed computation
  • Experience with stream processing engine internals (e.g., state backends, checkpointing, runtime, or operator development) in systems like Apache Flink, Spark Structured Streaming, or similar.
  • Experience with SQL engine internals: query optimization, execution plan design, storage formats, or transaction layers
  • Familiarity with Spec Driven Development (SDD) and Test Driven Development (TDD)
  • Familiarity with formal verification

Snowflake is growing fast, and we’re scaling our team to help enable and accelerate our growth. We are looking for people who share our values, challenge ordinary thinking, and push the pace of innovation while building a future for themselves and Snowflake.

How do you want to make your impact?

For jobs located in the United States, please visit the job posting on the Snowflake Careers Site for salary and benefits information: careers.snowflake.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.

Frontend Engineer

Junior Fullstack Engineer (m/w/d) - Festanstellung, Vollzeit München

ticketbro

Munichfulltimejunior

Apply on the employer's site

Role description

Wir bauen die intuitivste mobile Buchungsplattform, die Einzelpersonen, kleine Unternehmen und Konzerne mit ihren Kunden verbindet. Unser Ziel: In 5 Minuten online — für jeden, überall.

Die cloudbasierte, mobile-first Buchungs- und Ticketing-Plattform von ticketbro bietet digital getriebenen Unternehmer:innen maximale Gestaltungsfreiheit. Mit dem Launch unserer App haben wir den nächsten Schritt gemacht — und wir hören nicht auf, besser zu werden.

Für die Weiterentwicklung unseres Kernprodukts suchen wir einen
Junior Fullstack Engineer
, der mit uns hochwertige, leicht bedienbare und leistungsstarke Features baut — über die gesamte Breite der ticketbro-Plattform.

Bewirb dich heute und komm mit uns auf die Reise.

Aufgaben

Du übernimmst Verantwortung für Features von Anfang bis Ende. Von der API im Cloud-Backend bis zum pixel-genauen UI auf Mobile und Web. Als Teil unseres Produktteams arbeitest du eng mit Designern und Entwicklern zusammen und bringst unsere Plattform aufs nächste Level.

  • Du baust Erlebnisse und Features, die Nutzer:innen wirklich lieben.

  • Du bringst eigene Ideen ein und gestaltest aktiv die Zukunft unseres Produkts.

  • Du arbeitest kollaborativ, stärkst dein Team und wächst mit ihm.

Qualifikation

  • Erste nachweisbare Projekterfahrung durch eigene Projekte, Praktika oder Werkstudententätigkeit zählen.

  • Kenntnisse in React Native (iOS & Android) oder React.js

  • Grundkenntnisse in Node.js und AWS Lambda.

  • Erste Erfahrungen mit GraphQL, TypeScript oder AWS CDK sind ein Plus.

  • Du verfolgst aktiv neue Entwicklungen in Mobile, Web und Cloud.

  • Du hast ein Gespür für gutes Produktdesign und User Experience.

  • Dein Code ist sauber, strukturiert und nachvollziehbar — das ist für dich selbstverständlich.

  • Erfahrungen mit TDD oder Payment-Anbietern (z.B. Stripe) sind willkommen, aber kein Muss.

  • Sehr gute Deutsch- und Englischkenntnisse. Deutsch ist Pflicht!

  • Gelegentliche Präsenz vor Ort in München (Stadtmitte) ist ein Plus.

Benefits

Professionalität, Flexibilität und echte Gestaltungsmöglichkeiten. Flache Hierarchien und ein kollaboratives Umfeld, in dem du direkt Verantwortung übernimmst und dich fachlich wie persönlich weiterentwickelst.

  • Wettbewerbsfähiges Gehalt

  • Standort München

  • 30 Tage Urlaub

  • Flexible Arbeitszeiten

  • Zugang zu erstklassigen Tools und Equipment

  • Direkte Zusammenarbeit mit dem Management und Einblicke in alle Unternehmensbereiche

  • Mitgestalten: Du prägst die Zukunft von ticketbro und der Buchungsbranche als Ganzes

Klingt gut?

Dann schick uns deine Bewerbung mit Motivationsschreiben und Referenzen (GitHub, Projekte, etc.) sowie deinem frühestmöglichen Startdatum und deiner Gehaltsvorstellung. Wir melden uns schnell.

Cheers

das ticketbro Team 🤙🏽

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.

371 more openings in this category and country

Software EngineerHelsing · Germany

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