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Frontend Engineer

Frontend Engineer

Software engineer, frontend

Soniox

Ljubljana

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Role description

Join our team as

Software engineer, frontend

Ljubljana, Slovenia

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About The Role
Soniox is building the future of real-time voice AI — and we're looking for a Frontend engineer who can turn powerful technology into intuitive, high-performance products.

As a Frontend engineer at Soniox, you’ll help design and build the user-facing surfaces of our speech and translation AI products. You’ll work closely with research, design, and backend teams to bring advanced capabilities — like live transcription, multilingual translation, and real-time voice reasoning — to users across web and mobile platforms.

You’ll be working in a fast-moving, highly collaborative environment where we value simplicity, clarity, and real-world impact. This role is ideal for engineers who care deeply about user experience and are excited to build products from scratch.

In This Role, You Will

  • Build and maintain frontend applications using React, TypeScript, and latest web technologies.
  • Develop robust, scalable frontend infrastructure to support live audio, real-time streaming, and interactive AI interfaces.
  • Collaborate with product, research, and design to prototype, implement, and iterate on new user experiences.
  • Contribute to the full product lifecycle — from architecture and design to implementation and production deployment.

You Might Thrive In This Role If You

  • Have 4+ years of experience building and shipping production-grade web apps.
  • Are confident building complex systems end-to-end, even in the absence of mature infrastructure.
  • Have deep experience with TypeScript, React, and the modern frontend stack.
  • Care about design, performance, and building maintainable systems.
  • Love fast data-driven iteration and adapt well to change and ambiguity.
  • Enjoy learning new things — and teaching others what you learn.

Why Soniox

You’ll help build one of the most technically advanced AI platforms in the world — and shape how it reaches and supports users globally.

You’ll work directly with a world-class team of engineers and researchers solving frontier problems in speech and language AI.

You'll have a voice in how our company grows, how our customers succeed, and how AI transforms human communication.

Ready to join Soniox? Apply now

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

Razvijalec programske opreme (m/ž)

GEN-I, d.o.o.

Ljubljanafulltime

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Role description

V naši razvojni ekipi verjamemo, da so tehnološka naprednost, kakovostna koda in učinkovita obdelava velikih količin podatkov temelj sodobnih programskih rešitev. Razvijamo napredne sisteme za področje energetike in trajnostnega prehoda, pri tem pa z avtomatizacijo poslovnih procesov ustvarjamo rešitve, ki prinašajo merljive koristi. Če vas navdušujejo sodobne tehnologije, delo s podatki in razvoj učinkovitih programskih rešitev v sodelovanju z izkušeno ekipo, vas vabimo, da se nam pridružite.

Vse izkušene kandidate kot tudi ambiciozne začetnike vabimo, da sprejmejo izziv!

Energetika je na pragu velikih sprememb: razpršeni obnovljivi energetski viri, elektromobilnost, nove tehnologije, digitalizacija, trajnostne rešitve, čista in decentralizirana energija za vsakogar. Z odločnimi in samozavestnimi koraki v skupini GEN-I stopamo na pot zelene transformacije in spodbujamo posameznika, da pripomore k boljši, bolj zeleni prihodnosti. Z ekipo strokovnjakov raznovrstnih področij razvijamo rešitve, ki bodo omogočile čisto energijo in razogljičenje posameznika in podjetij. Že vse od svoje ustanovitve se uvrščamo med najbolj inovativne in hitro rastoče akterje, ne le na slovenskem ampak tudi na evropskem energetskem trgu. Z enakim zagonom in še večjo motivacijo želimo spremeniti svet na bolje.

Ker velike spremembe zahtevajo najboljše, iščemo okrepitve z najboljšimi.

Izzivi:

  • Načrtovanje, razvoj in optimizacija programskih rešitev s sodobnimi tehnologijami.
  • Razvoj rešitev za obdelavo, integracijo in upravljanje velikih količin podatkov.
  • Izboljševanje produktov ter optimizacija poslovnih procesov.
  • Sodelovanje s poslovnimi uporabniki pri načrtovanju in razvoju najboljših rešitev.
  • Izmenjava znanja v ekipi ter spremljanje in uvajanje sodobnih razvojnih praks.

Pričakovanja:

  • Vsaj VI. stopnja izobrazbe relevantne smeri.
  • Izkušnje pri načrtovanju in razvoju programske opreme z uporabo sodobnih in uveljavljenih praks in pristopov.
  • Poznavanje vsaj enega od naštetih programskih jezikov C# (oz. ogrodja .NET), Python, Java, izkušnje z relacijskimi podatkovnimi bazami.
  • Interes po poznavanju celotnega življenjskega cikla razvoja (DevOps, ...).
  • Želja po poznavanju poslovnih procesov in tesno sodelovanje z uporabniki pri pripravi in razvoju najboljših rešitev.
  • Proaktivnost, visoka motiviranost ter želja po timskem delu.

Nudimo:

  • Sodelovanje v tehnološko napredni razvojni ekipi, ki ustvarja sodobne programske rešitve.
  • Soustvarjanje zelene energetske transformacije s prodorno in zavzeto ekipo.
  • Strokovni in osebni razvoj, podprt z izobraževanji in mentorskimi programi.
  • Možnost hibridnega dela.
  • Delo v inovativnem energetskem in dinamičnem mednarodnem okolju.
  • Neomejene količine kave in sadja na delovnem mestu.
  • Članstvo v aktivnem športnem društvu z 20 različnimi sekcijami, ki ponuja druženje z več kot 450 aktivnimi člani.

Prijave sprejemamo do vključno
2. 8. 2026
preko prijavnega obrazca. Prijav, oddanih direktno preko LinkedIn-a NE sprejemamo.

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 Developer in C#/.NET (m/f)

FlonIskra

Kranjfulltime

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Role description

  • Collaborating within an international development team and applying agile development principles (SCRUM).
  • Analyzing and understanding functional requirements for solutions in the fields of electricity, water, gas consumption management, IoT, e-mobility, etc.
  • Contributing to the design of system solutions and implementing functional prototypes with a focus on high performance, scalability, and reliability.
  • Participating in the design of more complex products and aligning solutions within technical specifications.
  • Contributing to architecture design.
  • Supporting the enhancement and maintenance of solution architecture and development technologies, as well as continuous improvement and technological advancement of solutions and knowledge.
  • At least a completed higher education degree in a technical or natural sciences field (Bachelor’s level or equivalent).
  • Minimum of 5 years of experience as a software developer.
  • Strong knowledge of the C# programming language and experience developing solutions in the Windows .NET environment.
  • Familiarity with Microsoft development tools (Visual Studio).
  • Experience with web interface and solution development is considered an advantage, particularly familiarity with the Angular framework.
  • Proactive mindset and willingness to learn new technologies.
  • Strong analytical skills and attention to detail.
  • Permanent employment contract with a 5-month probation period.
  • Work and collaboration in a high-tech professional environment with in-house development.
  • Opportunity to work in an international environment, as Iskraemeco is a large global company where you’ll collaborate with colleagues from various locations.
  • A professional onboarding seminar that will introduce you to the organization and the company’s portfolio within the first month.
  • We encourage and support individual career growth, enhancing skills in both professional competencies and soft skills. In 2024, we received the TOP Investor in Education certification.
  • We are a certified Family-Friendly Enterprise.
  • Your health matters to us, which is why we support participation in various sports (marathons, fitness, etc.) and cultural activities; fresh fruit is available every week.
  • We organize various informal gatherings, including team-building events.

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 Simulation Engineer

Sunrise Robotics

Ljubljanafulltime

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Role description

Our Mission:
At Sunrise Robotics, we are dedicated to augmenting humanity through intelligent robotics. Our mission is to elevate the world of manufacturing by introducing intelligent, flexible robots that enhance human capabilities and existing machinery, ushering in the next era of production at higher quality, with less waste, and lower cost.

Our Vision:
We see a future where every element of manufacturing, from design to assembly, is optimised with intelligent automation. Our vision is to integrate flexible robotic solutions, based on generic hardware and advanced software/AI capabilities, into manufacturing, particularly in small and medium-sized enterprises, to make automation economically viable and accessible, for all sizes of manufacturers. We are not just building robots; we are creating the strategically crucial components for autonomous, intelligent agents of the future.

The Role:
We are seeking a Senior Simulation Engineer with a strong background in simulation and a passion for robotics and intelligent systems in manufacturing. In this role, you will lead the design and development of high-fidelity simulation environments that replicate complex industrial systems. Your work will be critical in validating robotic control algorithms, testing edge-case scenarios, and accelerating development across robotics, AI, and systems engineering teams.

You’ll be responsible for creating realistic, physics-based assets, building dynamic and interactive simulation scenes, and implementing supporting tools and workflows. You will also play a key role in shaping our digital twin strategy, helping to bridge the gap between virtual and real-world manufacturing systems.

What You Will Do:

  • Create and manage realistic simulation scenes in Isaac Sim
  • Design and implement physics assets that accurately represent robotic components
  • Develop diverse simulation scenarios for control algorithm testing
  • Implement logic and behaviors to control scene dynamics
  • Build supporting tools to streamline simulation development workflows
  • Contribute to the development of digital twins and simulation-based validation systems
  • Collaborate with AI, robotics, and other engineering teams to support cross-functional needs

Who You Are:

  • An experienced engineer with a strong background in simulation or game development
  • Experienced in working with engines such as Unity3D, Unreal Engine, Godot, or NVIDIA Omniverse for 5+ years
  • Solid grasp of 3D mathematics, particularly linear algebra and kinematics
  • Skilled in core simulation concepts like collision detection, rigid body dynamics, and particle systems
  • A clean and pragmatic coder who writes maintainable, well-documented software
  • A team player who thrives in collaborative, interdisciplinary environments
  • An effective communicator, able to translate technical details into clear and engaging narratives
  • Deeply passionate about robotics, automation, and the role of intelligent systems in modern industry
  • Naturally curious, self-motivated, and constantly exploring new tools and approaches
  • A proactive problem-solver who takes initiative and ownership from idea to execution
  • A quick learner who can ramp up fast on new tools, workflows, and concepts
  • Proficiency in Python
  • Working knowledge of Linux

Good to have:

  • A portfolio (videos, screenshots, or demos) showcasing past simulation or game development projects
  • Familiarity with Isaac Sim or the NVIDIA Omniverse ecosystem
  • Understanding of Behavior Trees or similar systems for scene logic and orchestration
  • Experience with industry-standard physics engines like NVIDIA PhysX, Bullet Physics, or Havok
  • Ability to implement custom physics solutions, including constraints, joints, and soft-body dynamics

Why Sunrise Robotics?

  • Play a pivotal role in defining the future of intelligent robotics and manufacturing.
  • Be part of a company that is at the forefront of technological innovation, with a clear mission and vision.
  • Competitive compensation, including equity, and a flexible work environment that values innovation, learning, and excellence.

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 Manager, Revenue Planning and Performance Analytics (m/f/d)

iGaming Centre

Ljubljanafulltime

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Role description

Driving profitable growth through commercial intelligence, structural rigor & strategic steering
As the market leader in sports technology, Sportradar (NASDAQ: SRAD) is positioned at the center of the sports ecosystem. Our broader Financial Planning & Analysis organization plays a critical role in delivering extraordinary growth; we’re targeting a 15% CAGR for revenue while consistently expanding margin and cash conversion. In an industry where AI is redefining fan engagement, our finance leaders must be as sophisticated as our technology: combining financial discipline with commercial acumen and advanced analytics to unlock opportunities across a market growing at double-digit percent annually.

Driving profitable growth through commercial intelligence, structural rigor & strategic steering
As the market leader in sports technology, Sportradar (NASDAQ: SRAD) is positioned at the center of the sports ecosystem. Our broader Financial Planning & Analysis organization plays a critical role in delivering extraordinary growth; we’re targeting a 15% CAGR for revenue while consistently expanding margin and cash conversion. In an industry where AI is redefining fan engagement, our finance leaders must be as sophisticated as our technology: combining financial discipline with commercial acumen and advanced analytics to unlock opportunities across a market growing at double-digit percent annually.

What We Offer

Requirements
You ask smart questions and refuse to accept surface-level explanations. You enable business success by providing the "so-what" that others miss. You are a "fixer" who enjoys the challenge of untangling messy data problems to find a clear path forward.

What We're Looking For

  • Experience: 5-8 years in a multidisciplinary finance, analytics, and/or consulting role.
  • Archetype: We seek high proficiency in either commercial finance or commercial analytics.
  • Education: MBA or relevant master’s degree preferred.
  • Technical requirement: SQL, Power BI / Tableau, and AI agents knowledge is essential. Experience with Python or n8n/workflow automation is highly valued.
  • Mindset: An "accountability" mindset - you value the strength of a plan over the speed of its delivery.

You ask smart questions and refuse to accept surface-level explanations. You enable business success by providing the "so-what" that others miss. You are a "fixer" who enjoys the challenge of untangling messy data problems to find a clear path forward.

What We're Looking For

  • Experience: 5-8 years in a multidisciplinary finance, analytics, and/or consulting role.
  • Archetype: We seek high proficiency in either commercial finance or commercial analytics.
  • Education: MBA or relevant master’s degree preferred.
  • Technical requirement: SQL, Power BI / Tableau, and AI agents knowledge is essential. Experience with Python or n8n/workflow automation is highly valued.
  • Mindset: An "accountability" mindset - you value the strength of a plan over the speed of its delivery.

Responsibilities
Reporting to the VP of Revenue Performance & Planning, you are the primary performance auditor of commercial outcomes. You don't just report numbers; you interrogate them and recommend the way forward to maximize value. Your mission is to identify the "why" behind performance trends that you package to a compelling story to drive a business decision. You provide the critical challenge required for driving revenue and margin, guiding business counterparts through a transformative planning process that prioritizes drivers over pure outcomes.

  • Proactive revenue performance analysis: move past outcomes to identify the specific revenue drivers (e.g., usage, churn, pricing, market) that management must focus on.
  • Revenue forecast pressure-testing: Interrogate the inputs that feed our global P&L to ensure every forecast is achievable and rooted in actionable drivers.
  • Logic refinement: Identify and dismantle broken assumptions in commercial plans and rebuild them into actionable, robust frameworks.
  • Causal synthesis: Translate complex technical and commercial data into clear, authoritative narratives for senior stakeholders.

Key Responsibilities

  • Driver autopsy: Conduct deep-dives into revenue beats or misses to distinguish between one-time windfalls and core structural trends.
  • Planning guidance: Lead commercial counterparts through the forecasting and budgeting process to ensure submissions are robust and logically sound.
  • Business modeling: Create elegant solutions for complex business topics like pricing elasticity and market entry costs.
  • Build automated revenue reporting using advanced analytical and reporting tools on top of data warehouse and billing data sets to steer commercial decision making

Reporting to the VP of Revenue Performance & Planning, you are the primary performance auditor of commercial outcomes. You don't just report numbers; you interrogate them and recommend the way forward to maximize value. Your mission is to identify the "why" behind performance trends that you package to a compelling story to drive a business decision. You provide the critical challenge required for driving revenue and margin, guiding business counterparts through a transformative planning process that prioritizes drivers over pure outcomes.

  • Proactive revenue performance analysis: move past outcomes to identify the specific revenue drivers (e.g., usage, churn, pricing, market) that management must focus on.
  • Revenue forecast pressure-testing: Interrogate the inputs that feed our global P&L to ensure every forecast is achievable and rooted in actionable drivers.
  • Logic refinement: Identify and dismantle broken assumptions in commercial plans and rebuild them into actionable, robust frameworks.
  • Causal synthesis: Translate complex technical and commercial data into clear, authoritative narratives for senior stakeholders.

Key Responsibilities

  • Driver autopsy: Conduct deep-dives into revenue beats or misses to distinguish between one-time windfalls and core structural trends.
  • Planning guidance: Lead commercial counterparts through the forecasting and budgeting process to ensure submissions are robust and logically sound.
  • Business modeling: Create elegant solutions for complex business topics like pricing elasticity and market entry costs.
  • Build automated revenue reporting using advanced analytical and reporting tools on top of data warehouse and billing data sets to steer commercial decision making

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.

2 more openings in this category and country

Software engineer, frontendSoniox · Slovenia

Apply on the employer's site