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Backend Engineer

Backend Engineer

Senior Backend Engineer, Romania (m/f/d)

voize

Bucharestsenior

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Role description

đŸŽ€ Why voize? Because we’re more than just a job!

At voize,
we believe the greatest gift to frontline workers is time - time to care, connect, and be present.
Today, that time is lost to admin work that pulls nurses away from what matters most:
people
.

We’re changing that by building the AI companion that frees nurses from admin,
giving them back up to 30% of time
. We don’t replace humans - we support and amplify their impact.
Today, 2,000+ care facilities trust voize, and over 200,000 nurses rely on our AI companion
to ease their daily workload.

Our mission is backed with a
$50M Series A funding led by Balderton Capital, with support from HV Capital, Y Combinator and other leading VCs.
As a fast-growing team, we combine first-in-class technology with meaningful social impact.
And now, we’re looking for you to join us on this mission!
💡 Your Mission

As a Backend Engineer
part of our US/UK squad
based in our Bucharest, Romania HUB
, you’ll ensure that data flows smoothly between our products and our partners' software solutions. You'll build and maintain the integrations that connect the voize with senior care and hospital software platforms.

🚀 Your Daily Business – No two days are alike

  • Shape the future of our integrations – Develop interfaces that seamlessly connect voize with systems in the care and medical sector
  • Build future-proof solutions – Develop a scalable API, set industry standards, and work closely with partners and clients
  • Take end-to-end ownership – From the idea and implementation to the ongoing development of our integrations
  • Architecture with foresight – Design thoughtful data models and sustainable solutions for complex systems
  • Work with impact – Your work saves caregivers time, improves documentation, and supports people who do amazing work every day.

đŸ€ Your Skillset – What You Bring To The Table

  • Several years of experience in backend development and API integration
  • Proficiency with Kotlin and Coroutines is essential
  • API design and development with REST or GraphQL
  • Business fluent in English (C1) to communicate effectively with customers
  • Open to travel to Germany every 2 months

đŸŒ± Growing together – what you can expect at voize

  • We are a fast-growing startup, that means you will tackle challenges, grow quickly, and make a real impact, giving healthcare professionals more time for real patient care
  • We foster an open, collaborative culture with regular team events in Germany
  • Become a co-creator of our success with stock options
  • You decide when you work best, that means flexible working hours and a good hybrid set-up.

✹
Ready to talk?
Apply now! 🚀

We look forward to your application and can’t wait to meet you – no matter who you are or what background you have!

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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A discount on mentoring

Winners are drawn at random among entries with a confirmed email. The date and the full rules are on the draw page.

Draw rules

Backend Engineer

Senior Java Backend Developer - Remote Work | REF#290295

BairesDev

Remotefulltimesenior

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Role description

At BairesDevÂź, we've been leading the way in technology projects for over 15 years. We deliver cutting-edge solutions to giants like Google and the most innovative startups in Silicon Valley.

Our diverse 4,000+ team, composed of the world's Top 1% of tech talent, works remotely on roles that drive significant impact worldwide.

When you apply for this position, you're taking the first step in a process that goes beyond the ordinary. We aim to align your passions and skills with our vacancies, setting you on a path to exceptional career development and success.

We’re looking for a Senior Java Backend Developer with strong Java skills and a solid background in distributed data processing. You’ve worked on systems where data moves reliably at scale — whether through streaming pipelines, batch jobs, or both — and you understand the JVM well enough to reason about performance when it matters. You’ll be contributing to open source data platform technology that leading enterprises worldwide depend on to process and manage their data.

What You’ll Do

  • Design and develop distributed data processing components in Java, with a focus on throughput, reliability, and correctness.
  • Build and maintain stream and batch processing pipelines that handle large-scale data workloads in production.
  • Apply JVM performance knowledge to optimize data processing systems under real production conditions.
  • Collaborate with platform and data engineering teams to deliver scalable, well-tested solutions.
  • Participate in code reviews and contribute to engineering standards across the data platform.
  • Investigate and resolve performance bottlenecks and reliability issues in distributed processing components.

What We Are Looking For

  • 5+ years of experience in IT roles.
  • 3+ years of experience with Java as a primary programming language.
  • Hands-on experience with distributed data processing systems.
  • Background in stream or batch processing infrastructure.
  • Solid understanding of JVM performance fundamentals.
  • Open source contribution experience is a plus.
  • Advanced proficiency in English.

How we do make your work (and your life) easier:

  • Remote Work.
  • Excellent compensation in USD or your local currency if preferred
  • Hardware and software setup for you to work from home.
  • Flexible hours: create your own schedule.
  • Paid parental leaves, vacations, and national holidays.
  • Innovative and multicultural work environment: collaborate and learn from the global Top 1% of talent.
  • Supportive environment with mentorship, promotions, skill development, and diverse growth opportunities.

Join a global team where your unique talents can truly thrive and make a significant impact!

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.

Backend Engineer

Mid+ AI / Backend Engineer

Crodu

Remotefulltime

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Role description

⏳ Czas projektu: dƂugoterminowy 👈

🌮 Forma: fulltime, zdalnie 👈

⏰ Start: ASAP 👈

Czeƛć! 👋

Dla dynamicznie rozwijającego się startupu tworzącego nowoczesną platformę B2B AI opartą na autonomicznych agentach poszukujemy doƛwiadczonej osoby na stanowisko
Mid+
AI / Backend Engineer
.

Platforma dostarczana przez klienta eliminuje ĆŒmudną analitykę w zespoƂach przedsiębiorstw dzięki elastycznej architekturze, rozwiązaniom agentycznym i zaawansowanym przepƂywom pracy. W tej roli doƂączysz do zespoƂu programistycznego, gdzie będziesz mieć realny wpƂyw na architekturę systemĂłw trafiających bezpoƛrednio na produkcję,tworząc i skalując infrastrukturę backendową oraz systemy sztucznej inteligencji.

Szukamy osoby, ktĂłra nie jest jeszcze seniorem, ale niewiele jej brakuje do tego poziomu. Klientowi zaleĆŒy, ĆŒeby podjąć wspóƂpracę z osobą samodzielną, ktĂłra dostaje dobrze opisane zadanie i dowozi je bez prowadzenia za rękę.

Codzienne zadania
📍 Tworzenie i rozwój skalowalnych usƂug backendowych (Python, FastAPI) napędzających platformę AI.

📍 Budowa i optymalizacja potoków RAG, systemów agentów AI oraz orkiestracja modeli LLM na produkcji.

📍 Wsparcie w tworzeniu infrastruktury chmurowej (AWS / Azure), w tym izolacją wieloabonencką (multi-tenant) i funkcjami serverless.

📍 Tworzenie elastycznego ekosystemu integracji sterowanego przez API oraz zewnętrzne konektory.

📍 Prowadzenie przeglądĂłw kodu (code reviews), dbanie o standardy testowania i mentoring mƂodszych inĆŒynierĂłw.

📍 Dbanie o bezpieczeƄstwo systemu (JWT, OAuth2, RBAC, ochrona przed prompt injection).

Wymagania
âšĄïž 3-5 lat doƛwiadczenia komercyjnego w backend engineeringu z wykorzystaniem Pythona.

âšĄïž Bardzo dobra znajomoƛć frameworka FastAPI (async, Pydantic, dependency injection).

âšĄïž Doƛwiadczenie w pracy z PostgreSQL (projektowanie schematĂłw, optymalizacja zapytaƄ, migracje z Alembic).

âšĄïž Doƛwiadczenie z systemami AI (LLM, RAG) -> tool calling, function calling, multi-step reasoning, MCP / Model Context Protocol

âšĄïž Wiedza z zakresu chmury: AWS (Lambda, S3, ECS, API Gateway) i/lub Azure.

âšĄïž Znajomoƛć Docker, Kubernetes, CI/CD (GitHub Actions, GitLab CI) oraz IaC (Terraform / AWS CDK).

âšĄïž Doƛwiadczenie produkcyjne w integracji API modeli LLM (OpenAI, Anthropic Claude, Google Gemini).

âšĄïž Bardzo dobra znajomoƛć języka angielskiego w mowie i piƛmie.

**Mile widziane

âšĄïž**
Znajomoƛć TypeScriptu (zaawansowany system typów: generics, utility types, conditional types).

âšĄïž Praktyczna znajomoƛć Celery oraz asynchronicznego przetwarzania zadaƄ (Redis / RabbitMQ).

âšĄïž Doƛwiadczenie z GraphRAG oraz grafowymi bazami danych (Neo4j).

âšĄïž Praktyka w serwowaniu modeli LLM on-premise (vLLM, TGI, TensorRT-LLM) oraz znajomoƛć technik fine-tuningu (LoRA/QLoRA).

âšĄïž Znajomoƛć Pulumi, gRPC lub GraphQL.

Jak aplikować?

👉 Wyƛlij nam swoje zgƂoszenie w formularzu!

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

Especialista IntegraciĂłn y APIS (IBM App Connect Enterprise (ACE))

Towa Software

Remotefulltime

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Role description

ESPECIALISTA SENIOR DE INTEGRACIÓN Y APIs
🏱
Modalidad:
Home Office

Sobre la posiciĂłn
Buscamos un
Especialista Senior de IntegraciĂłn y APIs
para fortalecer nuestro equipo de integraciĂłn empresarial.

La persona serå responsable de diseñar, desarrollar y mantener soluciones de integración entre diferentes sistemas y plataformas, utilizando
IBM App Connect Enterprise (ACE)
como una de las principales tecnologĂ­as del entorno.

Buscamos un perfil técnico con experiencia comprobable en
integraciĂłn empresarial, APIs, microservicios y plataformas de middleware
, capaz de participar en el diseño de soluciones robustas, seguras y escalables.

Responsabilidades

  • Diseñar, desarrollar y mantener soluciones de integraciĂłn utilizando IBM App Connect Enterprise (ACE).
  • Desarrollar e implementar APIs y servicios empresariales para la integraciĂłn de aplicaciones y sistemas.

Requisitos indispensables

  • Experiencia comprobable con IBM App Connect Enterprise (ACE).
  • Experiencia sĂłlida en integraciĂłn de sistemas empresariales.
  • Experiencia en diseño y desarrollo de APIs REST y/o SOAP.
  • Experiencia con microservicios y servicios empresariales.

SerĂĄ un plus si cuentas con

  • Experiencia con AWS o Google Cloud Platform (GCP).
  • Experiencia con API Management / API Gateway.
  • Conocimientos de API Governance.

💰 Oferta
Sueldo competitivo acorde con experiencia y conocimientos técnicos.
Esquema nominal con prestaciones de ley y beneficios internos.
ÂżTe interesa?
PostĂșlate enviando tu CV para participar en nuestro proceso de selecciĂłn. Recuerda que es importante que se mencione en tu CV la experiencia en los requisitos al menos indispensables.

  • Se podrĂ­a requerir documentaciĂłn personal en alguna parte del proceso de reclutamiento y selecciĂłn-

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

Concepteur Développeur Sénior - Tech Lead Java/Angular (H/F/N)

OPEN

Remoteother

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Role description

Contexte de la mission
Nous sommes une entreprise incontournable sur les marchĂ©s IDF, avec une forte prĂ©sence dans les secteurs Public, Bancaire, Industrie, TĂ©lĂ©coms, Transport et Énergie.

L’équipe parisienne Application Services compte prĂšs de 1500 collaborateurs. Nous accompagnons nos clients, de bout en bout, sur leurs projets applicatifs, notamment sur les stacks technologiques DevOps, Data, Cloud et Modern Workplace.

Venez renforcer nos équipes !

Nous recrutons un Concepteur Développeur Sénior / Tech Lead JAVA Confirmé H/F avec idéalement une expérience en Banque ou en Assurance, qui nous apportera son bagage technique et sa vision nouvelle.

Vous aurez la possibilité d'intervenir sur des missions en régie dans un contexte Agile.

Ce qui vous attend

  • Concevoir et implĂ©menter des modules Ă  dĂ©velopper dans le respect de l’architecture posĂ©e
  • RĂ©aliser ou participer Ă  la conception technique gĂ©nĂ©rale du systĂšme
  • DĂ©velopper, suivre et contrĂŽler la fiabilitĂ© des dĂ©veloppements
  • Être le relais des Responsables Techniques dans la montĂ©e en compĂ©tences des dĂ©veloppeurs et force de proposition sur les choix de technologie et d’outils sur les projets
  • Remonter les alertes au plus tĂŽt
  • Mettre en production, industrialiser et intĂ©grer
  • Assurer la maintenance et le support technique
  • Participer Ă  la rĂ©alisation de diffĂ©rentes Ă©tudes (analyse d’impact, Ă©tudes prĂ©alables, d’opportunitĂ©, de faisabilitĂ© techniques) et estimer les charges de travail pour les dĂ©veloppements (chiffrages notamment)
  • Être rĂ©fĂ©rent technique sur tout ou partie de l’application en fonction de l’expĂ©rience acquise

Vous ĂȘtes fait(e) pour ce poste si

  • Vous justifiez d'une expĂ©rience de 6 ans minimum sur la fonction de Concepteur DĂ©veloppeur SĂ©nior / Tech Lead JAVA, idĂ©alement dans le domaine de la Banque de dĂ©tail ou de l’Assurance
  • Vous avez dĂ©jĂ  travaillĂ© dans un environnement Agile ainsi que sur ses outils (JAVA / ANGULAR / REACT / Hibernate / Spring / SpringMVC / Web API / JavaScript / HTML / CSS / PostGreSQL / SQL Server)
  • La maĂźtrise de l’anglais et la pratique de l’AgilitĂ© seront de vĂ©ritables atouts

Votre envie, votre bonne humeur, votre capacité relationnelle et votre rigueur sont à la hauteur de votre dynamisme. Vous souhaitez vous projeter dans une nouvelle aventure, au sein d'une structure forte, et intégrer une équipe d'architectes et de référents techniques.

Au-delĂ  de la mission, vous pourrez

  • Intervenir sur diffĂ©rentes missions dans des secteurs d'activitĂ©s variĂ©s (Énergie, Transport, TĂ©lĂ©coms, MĂ©dias, Automobile)
  • Rejoindre nos Practices Technologiques, notre programme interne de communautĂ©s d'experts sur des technologies Ă©mergentes (Modern Workplace, Data, Cloud, DevOps...)
  • Continuer Ă  grandir techniquement via un suivi de carriĂšre personnalisĂ©, un accĂšs aux formations et aux certifications (Azure, AWS, etc.)

Poste en CDI Ă  pourvoir dĂšs que possible

Notre process de recrutement
Un bref échange téléphonique

Une premiÚre rencontre avec un chargé de recrutement et un ressources manager pour parler de vous, de vos aspirations professionnelles et vous présenter Open

Un deuxiĂšme Ă©change avec un interlocuteur de l’équipe technique

Vous serez accompagné(e) par le chargé de recrutement qui vous fera un retour complet et franc tout au long du process.

AprĂšs vous avoir souhaitĂ© la bienvenue, vous bĂ©nĂ©ficierez d’un parcours d’intĂ©gration sur mesure.

Pourquoi nous rejoindre ?
Ce sont nos Ambassadeurs qui en parlent le mieux, découvrez leurs témoignages sans filtre :

https://www.welcometothejungle.com/fr/companies/open

Code REC : MEL25329

Et vous, qu’attendez-vous pour ĂȘtre Open ?

#RecrutezNous #AllezVientOnEstBien

Qu’attendez-vous pour ĂȘtre Open ?

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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Senior Backend Engineer, Romania (m/f/d)voize

Apply on the employer's site
Senior Backend Engineer, Romania (m/f/d) — voize | mentors.coach