Are you looking to thrive in a stimulating work environment?  

Join Levio, a leader in digital transformation, and take your career to the next level. You will work alongside high-caliber professionals on ambitious, large-scale technology projects, directly embedded in our clients’ environments. At Levio, we value expertise, curiosity, and continuous improvement — and we give you the space to grow.  

About the Role

We are seeking Senior Java Engineer for a major project in the banking industry in Montreal. This position is in hybrid mode in Montreal (3 days/week). 

Why Join Levio?  

• Work on complex, high impact digital transformation projects  

• Collaborate with experienced, multidisciplinary teams  

• Continuously develop your technical and professional expertise  

• Enjoy flexibility, autonomy, and a strong people first culture  

• Be part of an organization that values diversity, inclusion, and innovation  

Role and Responsibilities 

• Design, develop, and maintain a reusable, testable, high-performance platform that supports multiple Lending business lines.
• Build Spring Boot microservices and REST APIs; implement robust data access layers.
• Apply best practices in code reviews, automated testing, and SDLC execution.
• Collaborate with global, cross-functional teams to deliver end-to-end solutions and contribute to Agile ceremonies.
• Ensure quality, security, and compliance standards in all development activities.
• Independently drive technical initiatives and provide technical advice

Qualifications and Experience 

• 7+ years of hands-on experience building Java 11+ services with Spring Boot and secured RESTful microservices.
• Strong expertise in relational or document databases (SQL, MongoDB, ES, or similar).
• Hands-on experience with AI developer productivity tooling (e.g., GitHub Copilot, Amp, or similar).
• Excellent English communication skills (verbal and written).
• Proven problem-solving and analytical ability.
• Solid understanding of software development lifecycle and Agile methodologies.
• Fluent in English

Benefits and Work Environment  

Levio offers a comprehensive and flexible benefits package designed to support your professional growth and personal wellbeing, including:  

• 4 weeks of cumulative vacation starting from day one  

• Flexible working hours  

• Professional Development Allowance (PDA) for training, computer equipment, and physical activities  

• Training tailored to your areas of expertise  

• Registered Retirement Savings Plan (RRSP) with employer contribution up to 3% of gross salary  

• Modular group insurance plan 

• Public transportation or parking reimbursement when required  

• Referral bonuses  

• 11 statutory holidays  

• Personal days  

• An active social life (5to7 events, social club, healthy snacks, coffee, and more)  

Position Details  
 

• Employment type: Full time, permanent  
   

Employment Equity  

Levio subscribes to the principle of employment equity and applies an equal access employment program for women, Indigenous peoples, visible minorities, ethnic minorities, and persons with disabilities.  

We value diversity and inclusion and are committed to creating a healthy, accessible, and rewarding work environment that highlights the unique contributions of our employees. Accommodations are available upon request for candidates participating in all aspects of the selection process.  

About Behavox

Behavox is a cloud-native AI company providing an integrated controls platform for global banks, asset managers, hedge funds, private equity firms, insurance businesses, and commodity firms. The platform unifies communications and trade surveillance, compliant archiving, policy management as well as front-office analytics on a single, AI-native technology stack, delivered as a globally scalable SaaS-based cloud service.

At Behavox, our engineering culture is built around speed, experimentation, and technical excellence, following agile principles and rapid iteration. We constantly test and adopt the latest cloud technologies and AI tooling, optimising for fast feedback loops and execution. We look for people who can move fast, challenge conventional wisdom, and who want to work at the frontier of modern AI, SaaS platforms, and distributed systems.

Behavox is a high-performance organisation with a strong bias toward delivery, ownership, and responsibility. We commit, and we execute. We are building systems that are complex, mission-critical, and global in scale; systems that many consider too large or too difficult. To do that, we seek the smartest, most technically capable engineers and technologists who take end-to-end responsibility and want to win by building what others cannot.

Founded in 2014 and backed by SoftBank Vision Fund, Behavox is headquartered in London, with offices worldwide, including New York City, Montreal, Seattle, Singapore, and Tokyo.

About the Role

The Software Engineer (Java) operates at a senior engineer level, driving technical direction across core product domains. The role combines deep hands-on Java engineering with architectural ownership — from high-level system design and technology selection to leading delivery of critical, cross-cutting platform capabilities.

At this level, engineering excellence extends beyond implementation: the engineer determines the right approach to complex problems, communicates technical decisions across functions, participates in hiring, and is accountable for the long-term health of the systems they own. This level demands sound judgment on technology and business trade-offs and the ability to act as a technical lead. A defining expectation is mastery of AI-assisted engineering — leveraging agentic AI tools as force multipliers while retaining full ownership of architecture, quality, and technical outcomes.

What You'll Bring

• Expert Java engineering: Deep understanding of Java internals — GC tuning, Collections Framework, advanced concurrency (java.util.concurrent, multithreading), NIO/NIO2, performance profiling, and heap-dump analysis. Mastery of Spring Framework (IoC/DI, bean lifecycle, Spring Boot). SOLID principles, Clean Code practices, and GoF design patterns
• Software architecture and design patterns: Expertise in monolith and microservices architectural styles — including migration patterns and domain-driven decomposition. Inter-process communication design (REST, gRPC, messaging), transaction management in distributed systems (Sagas, 2PC), CQRS, Event Sourcing, and external API design focused on scalability, security, and documentation
• Cloud-native platforms and infrastructure: Experience designing high-availability and high-load systems on GCP (preferred), AWS, and Azure. Cloud security best practices: IAM, VPC, data encryption, JWT/JWS/JWE. Infrastructure as Code (Terraform or equivalent) and Twelve-Factor App methodology
• Observability, reliability and deployment: Implementing full observability stacks: structured logging, distributed tracing, metrics, and alerting. SLI/SLO/SLA frameworks. Deployment strategies: Rolling Updates, Blue/Green Deployments, Canary Releases
• AI-assisted engineering: Practitioner-level command of agentic AI tools applied to software engineering — encompassing prompt engineering techniques, AI context management and its limitations, sub-agents, skills and plugins, multi-agent orchestration, and team-of-agents architectures. Experience with Claude Code (Anthropic), Codex (OpenAI), or equivalent is mandatory

What You'll Do

• Architecture and technology leadership: Lead high-level design for complex, cross-service features. Evaluate and select appropriate technologies, frameworks, and architectural patterns before delegating implementation. Produce and maintain architecture documentation: design docs, ADRs, tech specs, and wiki pages
• Advanced Java feature implementation: Own and implement critical product components — including prototyping, architecture validation, and production-grade code. Ensure correctness, performance, and long-term maintainability with comprehensive test coverage (unit, integration, contract, component)
• Technical roadmap contribution: Drive the engineering agenda for assigned product areas. Proactively identify gaps in requirements, architectural limitations, and technical risks. Contribute to product roadmap planning and delivery estimation. Participate in hiring processes
• Cross-functional technical communication: Drive technical communication across engineering, product, DevOps, and ML teams. Communicate technical decisions clearly to non-technical stakeholders. Produce design documents and participate in tech talks and knowledge-sharing sessions
• AI-augmented engineering: Direct agentic AI tools (Claude Code, Codex, or equivalent) across the full engineering workflow — code generation, testing, refactoring, debugging, and documentation. Demonstrated ability to apply advanced prompt engineering, manage AI context limitations, compose multi-agent orchestration workflows, and critically evaluate AI-generated outputs for correctness, security, and quality. Ability to establish guardrails and improve agent configurations to raise the quality bar. AI proficiency amplifies — it does not replace — deep engineering judgment and technical accountability

What We Offer

• The opportunity to work on a global, mission-critical AI platform alongside the best engineers and technologists across multiple geographies
• A role with real ownership and impact, building complex systems at scale in an environment that values speed, experimentation, and technical excellence
• A highly attractive benefits package, including competitive cash compensation, an equity award aligned with long-term value creation, and comprehensive health insurance for employees and their families
• Modern, comfortable offices in Montreal/ Toronto downtown, with an expectation of working from the office 1 day per week, reflecting our belief in strong in-person collaboration, while remaining flexible to accommodate remote work for candidates who live in other Canadian cities
• A generous time-off policy of 30 days annually, plus public holidays and sick leave, recognising the importance of sustained high performance

About Our Process

Our selection process is designed to rigorously assess a candidate’s depth of technical knowledge, problem-solving ability, and alignment with Behavox’s mission and core values.

As part of the process, candidates will first participate in a series of interviews focused on evaluating their technical expertise and engineering judgment. Candidates who successfully progress through these interviews will then be invited to complete a live technical exercise. The purpose of this live technical assessment is to validate the candidate’s stated technical competencies and assess their ability to solve complex problems with speed, accuracy, and sound engineering judgment. Note that whenever possible, we aim to conduct interviews in person at our offices.

We recognise and respect the time candidates invest in this process. In return, Behavox commits significant time and resources to ensure that those who join us have the capability, judgment, and alignment required to operate at the speed and level of complexity our work demands. We value efficiency and clarity on both sides; if at any point we determine that a candidate is not a fit, we reserve the right to immediately conclude the interview or the technical assessment.

Please note the following:

• A core objective of the process is to objectively assess individual knowledge and competencies. The use of AI tools or external assistance during live interviews or technical exercises is strictly prohibited (unless explicitly instructed otherwise) and will result in immediate disqualification.
• Interviews and technical sessions may be recorded for internal review to support fairness, consistency, and collaborative decision-making within the hiring team.

Job Title: Senior Java Software Engineer – Financial Services

Location: Montreal, Quebec (Onsite)

About the Role:

We’re seeking a highly skilled Senior Java Software Engineer to join our dynamic team working on complex financial service systems that serve millions of customers worldwide. You will play a critical role across enterprise architecture, risk technology, and investment banking (IB)-facing applications. This role demands strong expertise in core Java technologies, scalable distributed systems, and modern cloud platforms.

Key Responsibilities:

• Design, develop, and maintain high-performance, scalable financial applications using Core Java, Spring Boot, and Hibernate.
• Build and integrate RESTful APIs and microservices within distributed systems architecture.
• Collaborate with cross-functional teams practicing Agile methodologies to deliver high-quality software continuously using CI/CD pipelines and DevOps tools.
• Implement messaging solutions using Kafka or other enterprise messaging frameworks to handle real-time data streams.
• Optimize application performance, ensure system scalability and high availability in a demanding production environment.
• Drive best practices around automated testing (TDD/BDD), including JUnit and Cucumber test frameworks.
• Contribute to architectural decisions focusing on robustness and risk mitigation in enterprise financial systems.
• Leverage cloud services (AWS, Azure, or GCP) to deploy and manage resilient cloud-native applications.

Required Skills & Experience:

• Strong expertise in Core Java (Java 8+) with solid understanding of JVM internals.
• Extensive experience with Spring Boot, Hibernate ORM.
• Proven background designing and developing REST APIs and microservices architectures.
• Hands-on experience with Kafka or similar event streaming platforms.
• Familiarity with cloud platforms such as AWS, Azure, or GCP, including deployment and monitoring.
• Adept in Agile software delivery and CI/CD automation.
• Strong knowledge of TDD/BDD with JUnit and Cucumber frameworks.
• Experience with performance tuning and ensuring high availability in large scale systems.
• Background in financial services technology, risk systems, or investment banking applications is highly advantageous.
• Full-working proficiency in English (written and verbal)

Preferred Qualifications:

• Bachelor’s or Master’s degree in Computer Science, Engineering, or related field.
• Experience with containerization (Docker, Kubernetes) and cloud-native architectures.

Kunai conçoit des solutions technologiques complètes pour les banques, les réseaux de crédit et de paiement, les fournisseurs d’infrastructures, ainsi que leurs clients. Ensemble, nous transformons les relations avec les services financiers, à l’échelle mondiale. Chez Kunai, nous aidons nos clients à se moderniser, à tirer parti des tendances émergentes et à faire évoluer leur entreprise pour les décennies à venir, en demeurant indépendants sur le plan technologique et centrés sur l’humain.

Titre du poste : Ingénieur(e) principal(e) en logiciels Java, Services au secteur financier 

Lieu : Montréal (Québec) (sur place) 

Au sujet du poste 
Nous recherchons une personne hautement qualifiée pour le poste d’ingénieur(e) principal(e) en logiciels Java, au sein de notre équipe dynamique, qui travaille sur des systèmes complexes offrant des services financiers à des millions de clients à l’échelle mondiale. Vous jouerez un rôle clé dans divers domaines : architecture d’entreprise, technologies de gestion des risques et applications de services bancaires d’investissement. Ce poste nécessite une solide expertise des technologies Java de base, des systèmes distribués évolutifs et des plateformes infonuagiques modernes. 

Principales responsabilités 

• Concevoir, développer et tenir à jour des applications financières hautement performantes et évolutives à l’aide de Java (Core Java), Spring Boot et Hibernate 

• Concevoir et intégrer des API REST et des microservices au sein d’une architecture de systèmes distribués 

• Collaborer avec des équipes multidisciplinaires utilisant des méthodologies Agile, afin de livrer en continu des logiciels de haute qualité, au moyen de pipelines d’intégration et de déploiement continus (CI/CD) et d’outils DevOps 

• Mettre en œuvre des solutions de messagerie au moyen de Kafka ou d’autres cadres de messagerie d’entreprise pour le traitement de flux de données en temps réel 

• Optimiser la performance des applications et assurer une adaptabilité et une grande disponibilité des systèmes dans un environnement de production exigeant 

• Favoriser les pratiques exemplaires en matière de tests automatisés (TDD/BDD), notamment à l’aide des cadres de test JUnit et Cucumber 

• Contribuer aux décisions concernant l’architecture d’entreprise, en mettant l’accent sur la robustesse et la réduction des risques dans des systèmes financiers d’entreprise 
• Exploiter les services infonuagiques (AWS, Azure ou GCP) pour déployer et gérer des applications natives en nuage résilientes 

Compétences et expérience requises 

• Solide expertise en Java (Core Java, Java 8+) et excellente compréhension des mécanismes internes de la JVM 

• Connaissance pratique approfondie de Spring Boot et d’Hibernate (ORM) 

• Expérience démontrée dans la conception et le développement des API REST et d’architectures de microservices 

• Expérience pratique de Kafka ou de plateformes de diffusion d’événements similaires 

• Connaissance des plateformes infonuagiques telles qu’AWS, Azure ou GCP, y compris le déploiement et la surveillance 

• Maîtrise de la prestation de logiciels Agile et de l’automatisation CI/CD 

• Excellente connaissance des pratiques TDD/BDD, notamment avec les cadres JUnit et Cucumber 

• Expérience en optimisation de la performance et en maximisation de la disponibilité des systèmes à grande échelle 

• Connaissance pratique des technologies de services financiers, des systèmes de gestion des risques ou des applications de services bancaires d’investissement, atout majeur 
• Parfaite maîtrise de l’anglais en contexte professionnel, tant à l’oral qu’à l’écrit 

Aptitudes souhaitées 

• Baccalauréat ou maîtrise en informatique, en génie ou dans un domaine connexe 

• Expérience en conteneurisation (Docker, Kubernetes) et en architectures natives en nuage (cloud-native). 

Notre succès des 20 dernières années repose sur notre équipe exceptionnelle, qui tire profit d’une culture de collaboration, de créativité et de formation continue. 

Nous sommes fiers d’offrir à nos employés un large éventail d’avantages : rémunération concurrentielle, opportunités de perfectionnement professionnel et formules de travail flexibles, le tout conçu pour leur permettre de se réaliser pleinement. Alors que nous poursuivons notre expansion, nous demeurons résolument engagés à cultiver un environnement où chacun se sent valorisé, écouté et outillé pour évoluer, tant sur le plan personnel que professionnel, tout en repoussant les limites de l’innovation dans l’industrie des fintechs.