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Backend Engineer

Backend Engineer

(Senior) Backend Engineer - Banking (f/m/x)

lemon.markets

Berlin

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Role description

About Lemon.markets 🍋
We enable anyone to be an investor. Our mission is to grow investing opportunities for all European customers and businesses. By empowering FinTechs, banks, and wealth managers to offer investment products, we help create financial well-being for their customers.

lemon.markets is a Brokerage-as-a-Service platform: simple digital access to capital markets through a single API. Our API-first infrastructure abstracts brokerage complexity with a well-documented API, a self-service customer operations portal, and a clear regulatory framework, so partners can launch customer-centric, compliant products in weeks, not months.

As part of the dwpbank group, we’re adding a layer of resources and expertise to benefit from, while continuing to operate as an independent fintech with our own team, product, and start-up identity under the dwpbank umbrella.

Your Mission:
As a Senior Backend Engineer in the Banking domain at lemon.markets, you will design and own reliable, scalable backend services that keep money moving safely and efficiently for our partners and their customers.

Within this domain, you will build and operate systems across settlements, payments, and ledger accuracy, ensuring execution with partners is correct, cash flows are fast and reliable, and reconciliation reflects reality.

You will take end-to-end ownership in a cross-functional team, helping ensure operational compliance tasks meet regulatory and contractual SLAs while tracking partner-visible incidents that could affect trust and assets under custody.
Our Tech Stack is Python, FastAPI, AWS and Postgres.
You will have a significant impact on the development of our core Platform & Systems, and therefore on architectural decisions and the business itself. Working alongside a cross-functional team of experts, you will help build the banking infrastructure that enables accurate settlements, reliable payments, resilient ledger and reconciliation systems, and trusted partner operations for the next 100 million retail investors in Europe.

About you:

  • You write well-structured, maintainable and well-tested code in at least one modern programming language, such as Python, Go, Java, Ruby, JavaScript or TypeScript. We’re technology agnostic, so Python experience isn’t required, but you should be excited to learn it.
  • You have experience in designing and implementing highly scalable architecture and reliable REST APIs and bring the desire to make them world-class.
  • You’ve gained good experience with software in a cloud environment (AWS, GCP, Azure) and the architectural patterns for this environment.
  • You have a good understanding of any of these document-based or relational database technology such as MySQL/PostgreSQL.
  • You know how to write high-quality code that is understandable, maintainable and well tested, and can guide other engineers to do the same via code reviews.
  • You have a track record of designing, building and operating reliable and scalable backend systems as part of a cross-functional team.

You will be successful in this role if:

  • Growing investment opportunities excites you. We operate in a highly regulated environment and therefore having worked prior in a Fintech or financial Service provider would give you a head start, but is not a must.
  • You see yourself as a product engineer. That means, you are excited by solving customer problems and strive to become an expert in the domain area you are working in.
  • You enjoy modifying and scaling existing systems. This means high involvement in the product development process itself while advocating for the best engineering practices. It also means that you enjoy taking technical decisions.
  • You are ready and willing to take ownership of problems and act on them decisively with no supervision. You always thrive for high quality outcomes through focus, determination and attention to detail.
  • You are a team player. Working together as a team, sharing knowledge & providing mentorship comes naturally to you. Long term - you consider becoming a team lead.
  • You have no problem with learning new technologies on the go. You try to solve problems with more things than the ones you already know. We will always enable you with that, but your willingness has to come first.
  • You understand what working in a startup or a similar lean organisation is like. You are able to work with a small team in a lean environment, can move quickly and focus on what's truly important.
  • You see yourself reflected in the skills above, or you see yourself growing into this path.

We're looking for people with passion, desire to learn and that are team players. You're encouraged to apply, even if your experience doesn't precisely match the job description. Your skills and passion will stand out - and set you apart - especially if your career has taken some extraordinary twists and turns.

How we take care of you:

  • 🚀 Compensation package: We offer you a competitive salary, based on your experience and the value-add you bring to lemon.markets.
  • 🕑 Flexible working hours: We trust people to choose when they work best and avoid a rigid 9 to 5 mindset. You decide on the rhythm that helps you do your best work, with only shared core hours from 12:00 to 16:00 to support collaboration.
  • 🏱 Hybrid work setup: You can work from anywhere in Germany within a hybrid model. At the same time, in-person collaboration is a key part of our culture. That being said, individual contributor lemoneers work 4 days or more per month on-site in our Berlin office, spending quality time together with the team at events, onsites/offsites or over team dinners.
  • 📈 Grow with us: We take your personal development seriously! You’ll get regular mentorship and stretch opportunities, plus a clear career development framework with frequent feedback conversations so you always know where you stand, and what to do to level up.
  • đŸŒ± People & culture: You’ll feel our culture in the small things, like polaroids from our lemoneers’ first day, Friday food market strolls at Maybachufer, and our monthly new-joiner breakfast. But also in the bigger things: celebrating the onboarding of new partners, growing our teams, and owning a strong discussion culture.
  • 💛 Perks & benefits: We choose benefits that add actual value. We sponsor a Deutschlandticket for employees on unlimited contracts, plus 50% off on Beatvest - our partner for financial education and investing.
  • 🏝 Workation: Get out of here! At lemon.markets you can work remotely from anywhere in the EU for up to 10 consecutive days at a time, and up to 60 days per year in total.

As an equal opportunity employer, lemon.markets is committed to building an inclusive workplace. The company welcomes people from all different backgrounds, including age, citizenship, ethnic and racial origins, gender identities, individuals with disabilities, marital status, religions and ideologies, and sexual orientations to apply.

If you feel this role could be a great match for you even if you don’t tick every box, we’d still love to hear from you, please apply.

You have any questions? Feel free to contact us via talent@lemon.markets

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

Senior Machine Learning Engineer

Randstad Hungary

Remotesenior

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Role description

Organisation/Department

Our client is a US-headquartered, market-leading enterprise in their sector with a multi-decade history and an agile, global network. We are seeking a highly skilled Senior
Machine Learning Engineer
to join their expanding Budapest team as a senior technical individual contributor. Situated within the Data Engineering organization, you will operate at the intersection of data engineering, applied ML, and software engineering to design, build, and deploy production-grade ML infrastructure and agentic AI systems that directly impact the business.

Job description

  • End-to-End ML Pipeline Engineering:
    Design, build, and maintain production ML pipelines end-to-end — feature engineering, model training, evaluation, deployment, serving, and monitoring on AWS and Databricks.
  • Agentic AI Architecture:
    Architect and implement agentic AI orchestration systems using frameworks like LangChain, LangGraph, CrewAI, or custom layers, with production-grade reliability, observability, guardrails, planning loops, and memory management.
  • Feature Stores & Data Pipelines:
    Build and optimize feature stores, training data pipelines, and feature engineering workflows serving both batch and real-time inference workloads.
  • MLOps Infrastructure & Governance:
    Own MLOps infrastructure including CI/CD for models, automated retraining pipelines, A/B testing frameworks, model versioning, experiment tracking, and ML asset governance using MLflow, Unity Catalog, and Databricks Model Serving.
  • LLM Integration Patterns:
    Design and implement LLM integration patterns including RAG architectures, prompt management systems, tool-use frameworks, vector databases, and memory/state management.
  • Monitoring, Observability & Evaluation:
    Develop model monitoring for drift detection, performance degradation alerts, cost tracking, and automated remediation. Establish evaluation frameworks for predictive models (standard ML metrics, backtesting) and agentic systems (task completion, hallucination detection, tool-use accuracy, latency budgets).
  • Technical Leadership & Collaboration:
    Drive build-vs-buy and framework selection decisions backed by prototypes and benchmarks. Mentor ML engineers through technical design reviews, code reviews, and architectural guidance.

Required Experience

  • Core Background:
    6+ years in machine learning engineering, applied ML, or closely related software engineering roles with recent, demonstrated production delivery.
  • Production ML at Scale:
    2+ years building and operating production ML systems handling real traffic and business-critical decisions (not just notebooks or proof-of-concepts).
  • Databricks ML & AWS Ecosystem:
    Production experience with Databricks ML ecosystem (MLflow, Model Serving, Feature Store, Unity Catalog) and supporting AWS services (SageMaker, Bedrock, S3, Lambda, Step Functions, ECS/EKS).
  • Agentic AI Production Systems:
    Hands-on experience building agentic AI systems (multi-step orchestration, tool use, planning loops, memory management, human-in-the-loop patterns).
  • Core Tech Stack & Software Engineering:
    Deep proficiency in Python and ML frameworks (PyTorch, TensorFlow, scikit-learn, XGBoost) with strong software engineering fundamentals (testing, version control, code review, CI/CD).
  • LLM & Inference Experience:
    Production experience with LLM applications (RAG pipelines, vector databases like Pinecone/Weaviate/Chroma/pgvector, embeddings, prompt engineering, fine-tuning) and real-time/batch inference optimization (quantization, distillation, caching).

Preferred Qualifications

  • Experience with multi-agent system architectures (specialization, inter-agent communication, shared state management, failure recovery).
  • Production experience with model fine-tuning and RLHF/DPO alignment techniques.
  • Hands-on GPU infrastructure management, distributed training, and compute optimization on AWS (EC2 GPU, SageMaker training jobs, Bedrock custom models).
  • Familiarity with streaming ML (online learning, real-time feature computation, event-driven inference) and AI guardrail/safety systems (content filtering, output validation, cost controls).
  • Contributions to open-source ML tooling or published applied ML work.
  • MS or PhD in Computer Science, Machine Learning, or a quantitative field (practical production experience weighted equally).

Benefits

  • High Technical Impact:
    A unique professional challenge to shape production predictive AI models and agentic orchestration workflows for a stable, market-leading global enterprise.
  • Competitive Compensation:
    Senior level base salary and annual target bonus.
  • Benefits Package:
    Cafeteria allowance and private health insurance package.
  • Flexibility:
    Hybrid working model requiring 3 days of office presence (Budapest) and offering 2 days of Home Office per week.

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

Architecte Solutions logiciel Aéronautique/Défense

Capgemini Engineering

Remotelead

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Role description

Capgemini Engineering, leader mondial des services d'ingĂ©nierie , rassemble des Ă©quipes d'ingĂ©nieurs , de scientifiques et d'architectes pour aider les entreprises les plus innovantes dans le monde Ă  libĂ©rer leur potentiel . Des voitures autonomes aux robots qui sauvent des vies, nos experts en technologies digitales et logicielles sortent des sentiers battus en fournissant des services uniques de R&D et d'ingĂ©nierie dans tous les secteurs d'activitĂ© . Rejoignez nous pour une carriĂšre pleine d'opportunitĂ©s , oĂč vous pouvez faire la diffĂ©rence et oĂč aucun jour ne se ressemble

Description du poste

Rejoignez Notre Centre D’Excellence Software Et Contribuez Au DĂ©veloppement De Solutions Innovantes Dans Les Secteurs De L’AĂ©ronautique, Du Spatial, De La DĂ©fense Et Du Naval. Vous Interviendrez Sur Des Projets StratĂ©giques Ă  Forte Dimension Technologique Autour Des Applications Web, Mobiles Et Cloud, Au CƓur Des Enjeux De Transformation De Nos Clients. Dans Ce Cadre, Vos Missions Seront De

  • Comprendre les besoins fonctionnels et applicatifs des clients et contribuer aux dĂ©marches d’avant-vente.
  • Concevoir des architectures logicielles robustes, Ă©volutives et sĂ©curisĂ©es pour des environnements critiques.
  • DĂ©velopper et promouvoir des offres innovantes autour des technologies applicatives et cloud.
  • Piloter la cohĂ©rence entre les besoins du marchĂ©, la stratĂ©gie des solutions et les capacitĂ©s internes.
  • DĂ©velopper un rĂ©seau de partenaires et assurer une veille continue sur les Ă©volutions technologiques du marchĂ©.

Description du profil

  • DiplĂŽmĂ©(e) d’une Ă©cole d’ingĂ©nieurs ou Bac+5, vous justifiez d’au moins 15 ans d’expĂ©rience en architecture logicielle dans un contexte industriel complexe ou critique
  • Vous disposez d’une expertise dans les secteurs AĂ©ronautique, Spatial, DĂ©fense ou Naval et connaissez les standards associĂ©s
  • Vous maĂźtrisez les architectures distribuĂ©es, les API, les microservices, le cloud hybride et les enjeux de cybersĂ©curitĂ© logicielle
  • Vous Ă©voluez avec aisance dans plusieurs environnements techniques tels que C/C++, Java, Python, C#/.NET ou Go et possĂ©dez un niveau d’anglais avancĂ©
  • Vous ĂȘtes reconnu(e) pour votre leadership technique, votre capacitĂ© Ă  fĂ©dĂ©rer les Ă©quipes et votre esprit d’analyse.

3 raisons de nous rejoindre

Qualité de vie au travail
: accord de tĂ©lĂ©travail en France et Ă  l’international, accord sur l’égalitĂ© professionnelle, la parentalitĂ©, l’équilibre des temps et la mobilitĂ© durable.

Apprentissage en continu
: certifications et formations en libre accĂšs, accompagnement sur mesure avec votre career manager, parcours d’intĂ©gration sur 9 mois.

Avantages groupe & CSE
: plan actionnariat, activités à tarifs préférentiels, remboursement partiel vacances, remboursement de votre abonnement sportif ou culturel.

Nos engagements et priorités

Le groupe Capgemini encourage une culture inclusive dans un cadre multiculturel et handi-accueillant. En nous rejoignant, vous intĂ©grez un collectif qui valorise la diversitĂ©, dĂ©veloppe le potentiel de ses talents, s’engage dans des initiatives solidaires avec ses partenaires, et se mobilise pour rĂ©duire son impact environnemental sur tous ses sites et auprĂšs de ses clients.

Leader mondial des services d’ingĂ©nierie et de R&D, Capgemini Engineering met en oeuvre une connaissance sectorielle approfondie avec la maĂźtrise des derniĂšres technologies digitales et logicielles pour accompagner la convergence des mondes physique et numĂ©rique. Avec plus de 55 000 ingĂ©nieurs et scientifiques dans plus de 30 pays, nous aidons nos clients Ă  accĂ©lĂ©rer leur transformation vers l'Intelligent Industry.

Get The Future You Want* |www.capgemini.com/fr fr

  • Capgemini, le futur que vous voulez

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

Asset Management & Systems Analyst

Accenture Argentina

Remote

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Role description

We are looking for an Asset Management & Systems Analyst to join our Supply Chain & Engineering team. In this role, you will collaborate on a project for a leading transportation company based in Canada, focused on improving control systems and inventory management.

As an Asset Management & Systems Analyst, you will support and optimize asset management systems and processes to improve asset performance, reliability, and lifecycle management. You will work closely with cross-functional teams, leveraging Enterprise Asset Management (EAM) platforms and digital tools to drive operational efficiency and data-driven decision-making.

đŸ‘šâ€đŸ’» Key Responsibilities:

  • Support and optimize asset management systems and processes.

  • Collaborate with Operations, Maintenance, and Reliability teams to identify opportunities for improving asset performance.

  • Leverage data analytics and digital tools to enhance asset management practices.

  • Support the implementation of solutions for predictive maintenance and asset monitoring.

  • Contribute to the optimization of maintenance strategies.

  • Participate actively in team discussions and help resolve work-related challenges.

🎯
Must-have Skills:

  • Experience with Enterprise Asset Management (EAM) platforms such as SAP EAM, IBM Maximo, Hexagon EAM, or similar solutions.

  • Advanced English (the client is based in Canada, and the role requires regular interaction with international stakeholders).

  • Advanced SQL skills, including writing complex queries for asset and operational data analysis.

🚀 Nice-to-have Skills:

  • Experience with Hexagon EAM.

  • Knowledge of Asset Performance Management (APM) platforms.

  • Knowledge of Systems Engineering concepts.

  • Experience with predictive maintenance and asset monitoring.

  • Experience working with SCADA (Supervisory Control and Data Acquisition) systems.

  • Intermediate knowledge of Python.

  • Experience in transportation, manufacturing, utilities, or other asset-intensive industries.

đŸ€ł
Benefits We Offer You:

  • 🍔 Pedidos Ya delivery credits

  • đŸ„ Swiss Medical premium healthcare plan at no cost for you and your immediate family

  • 🌐 Connectivity reimbursement

  • đŸ‹ïž 100% covered gym membership

  • 🌮 Flexible vacation policy

  • ⏰ Flexible working hours

  • 📜 Sponsored certifications

  • 🎉 Day off on your birthday

  • 💰 Performance bonuses

  • 🗓 Accenture Days

  • 🎯 Flexible benefits package

  • đŸ‘¶ Extended maternity & paternity leave

  • 🧾 Financial support for childcare

  • ➕ And many more!

  • We want you to have the tools you need to keep learning, growing, and making a difference in the world.

🌍
Location:
We have offices in
Buenos Aires, CĂłrdoba, Mar del Plata, Rosario, Salta, and Mendoza
.

If you are based in other provinces, many of our positions are remote, so you can work from home.

🌈
Equality and Inclusion
At Accenture, equality drives innovation. We believe in building an inclusive and diverse workplace where everyone has equal opportunities.

All decisions related to recruitment and selection are made without distinction, exclusion, or preference based on race, color, gender, sexual orientation, disability, age, religion, political or union opinion, nationality, socioeconomic background, or any other characteristic protected by applicable law.

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

Développeuse / Développeur CRM - Stage

Capgemini

Remoteparttimelead

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Role description

Choisir Capgemini, c'est choisir une entreprise oĂč vous serez en mesure de façonner votre carriĂšre selon vos aspirations. Avec le soutien et l'inspiration d'une communautĂ© d’experts dans le monde entier , vous pourrez réécrire votre futur . Rejoignez nous pour redĂ©finir les limites de ce qui est possible, contribuer Ă  libĂ©rer la valeur de la technologie pour les plus grandes organisations et participer Ă  la construction d’un monde plus durable et inclusif

Vos missions

Vous rejoindrez une équipe intervenant sur des projets variés grùce à la diversité des secteurs d'activité (Banque, Media, Energie, Retail
).

Vous participerez aux missions suivantes :

Paramétrer et développer des applications digitales (CRM / e commerce)

Participer à l'intégration technique de solutions CRM et e-commerce sur mesure dans un contexte Agile.

Concevoir des applications sur les plans technique et fonctionnel.

Paramétrer des solutions Salesforce (SFDC), réaliser les tests et les recettes fonctionnelles, puis participer à leur déploiement.

Cette description n’est pas limitative. Elle peut tout Ă  fait Ă©voluer en fonction de votre expĂ©rience, des projets en cours et de vos attentes.

Votre profil

En M1/M2 dans le domaine du développement logiciel

Compétences en développement (Java, APEX).

CuriositĂ© technologique et volontĂ© d’apprendre

Aisance en anglais (niveau B2 minimum)

3 Raisons de nous rejoindre

Avantages groupe :
bĂ©nĂ©ficiez d’un ensemble d’avantages tels que les primes de cooptation, tickets restaurant, ainsi que des activitĂ©s sociales et culturelles variĂ©es proposĂ©es par le CSE. Des dispositifs d’accompagnement Ă  la parentalitĂ©, comme le temps partiel Ă  90% pendant les vacances scolaires, sont Ă©galement disponibles, ainsi que de nombreux autres avantages issus de nos accords collectifs.

Qualité de vie au travail :
profitez d’un Ă©quilibre entre vie professionnelle et personnelle, d’une possibilitĂ© de tĂ©lĂ©travailler (en France et Ă  l’international), ainsi que des dispositifs de santĂ© et bien-ĂȘtre (ligne d'Ă©coute, plateforme dĂ©diĂ©e...).

Environnement inclusif :
rejoignez des réseaux engagés comme Women@Capgemini, Parents@Capgemini, OUTfront ou CapAbility, et évoluez dans un cadre certifié EDGE+ et reconnu par le Bloomberg Gender Equality Index.

Happy Trainees :
notre engagement envers les jeunes talents est reconnu dans le classement HappyTrainees, preuve que chez nous, les stagiaires et alternants ne viennent pas juste apprendre
 ils viennent s’épanouir !

Notre engagement et priorités

Le groupe Capgemini encourage une culture inclusive dans un cadre multiculturel et handi-accueillant. En nous rejoignant, vous intĂ©grez un collectif qui valorise la diversitĂ©, dĂ©veloppe le potentiel de ses talents, s’engage dans des initiatives solidaires avec ses partenaires, et se mobilise pour rĂ©duire son impact environnemental sur tous ses sites et auprĂšs de ses clients.

A propos de Capgemini

Capgemini est un leader mondial, responsable et multiculturel, regroupant prĂšs de 350 000 personnes dans plus de 50 pays. Fort de 55 ans d’expĂ©rience, nous sommes un partenaire stratĂ©gique des entreprises pour la transformation de leurs activitĂ©s en tirant profit de toute la puissance de la technologie et des innovations dans les domaines en perpĂ©tuelle Ă©volution tels que le cloud, la data, l’Intelligence Artificielle, la connectivitĂ©, les logiciels, l’ingĂ©nierie digitale ou les plateformes.

Capgemini, partenaire de la transformation business et technologique de ses clients, les accompagne dans leur transition vers un monde plus digital et durable, tout en créant un impact positif pour la société. Le Groupe, responsable et multiculturel, rassemble 340 000 collaborateurs dans plus de 50 pays. Depuis plus de 55 ans, ses clients lui font confiance pour répondre à l'ensemble de leurs besoins grùce à la technologie. Capgemini propose des services et solutions de bout en bout, allant de la stratégie et du design jusqu'à l'ingénierie, en tirant parti de ses compétences de pointe en intelligence artificielle et IA générative, en cloud, et en data, ainsi que de son expertise sectorielle et de son écosystÚme de partenaires.

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 - Banking (f/m/x)lemon.markets

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