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Sr./Staff Backend Engineer - Java

Role overview

Qualifications

  • Bachelor's or Master's degree in Computer Science, Software Engineering, or a related field.
  • 5+ years of backend software development experience, focusing on Java and AWS technologies.
  • Strong experience building and operating low-latency, high-scale services in a distributed environment.
  • Proficiency in Java programming, knowledge of microservices, containerization (Docker, Kubernetes), distributed data systems (Kafka, ClickHouse), RESTful API design, security best practices, and CI/CD tools (Jenkins, Git, Maven/Gradle) and agile methodologies.

Responsibilities

  • Design and develop scalable, high-performance, low-latency backend services using Java and AWS technologies.
  • Collaborate with product management, frontend, and QA teams to define technical requirements and ensure smooth integration with other components of the platform.
  • Optimize and enhance existing services to achieve maximum performance, reliability, and maintainability; identify and resolve bottlenecks, ensuring optimal resource utilization and system stability.
  • Implement best practices for code quality, testing, and deployment, including CI/CD pipelines; provide technical guidance and mentorship to junior team members.

About the company

Oscilar logo

Oscilar

Oscilar solves one of the biggest challenges facing businesses and consumers today: how to protect online transactions from fraud, theft and risk. Our mission is to make the internet a safer place by protecting online transactions of all manner. Oscilar is a first-of-its-kind real-time, AI-powered risk decisioning platform that brings real-time data, AI and decisioning together in a way that's never been done before to create the most advanced credit and fraud detection platform. Our AI Risk Decisioning technology enables companies to expediently and accurately assess the risk of every online transaction in a few milliseconds.

Company details

Company size51 - 200

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Job description

Shape the future of trust in the age of AI
At Oscilar, we're building the most advanced AI Risk Decisioningβ„’ Platform. Banks, fintechs, and digitally native organizations rely on us to manage their fraud, credit, and compliance risk with the power of AI. If you're passionate about solving complex problems and making the internet safer for everyone, this is your place.

Why join us:

  • Mission-driven teams: Work alongside industry veterans from Meta, Uber, Citi, and Confluent, all united by a shared goal to make the digital world safer.

  • Ownership and impact: We believe in extreme ownership. You'll be empowered to take responsibility, move fast, and make decisions that drive our mission forward.

  • Innovate at the cutting edge: Your work will shape how modern finance detects fraud and manages risk.

Job Description

As a Backend Engineer at Oscilar, you will be responsible for designing, building, and maintaining the core infrastructure that powers our SaaS platform. You will collaborate closely with cross-functional teams, ensuring the delivery of highly reliable, low latency, and scalable services that meet the needs of our global enterprise clients.

Responsibilities

  • Design and develop scalable, high-performance, low-latency backend services using Java and AWS technologies.

  • Collaborate with the product management, frontend, and QA teams to define technical requirements and ensure smooth integration with other components of the platform.

  • Optimize and enhance existing services to achieve maximum performance, reliability, and maintainability.

  • Identify and resolve bottlenecks in the system, ensuring optimal resource utilization and system stability

  • Implement best practices for code quality, testing, and deployment, including continuous integration and continuous deployment (CI/CD) pipelines.

  • Proactively monitor the health and performance of backend services, taking necessary actions to mitigate potential issues.

  • Provide technical guidance and mentorship to junior team members.

Requirements

  • Bachelor's or Master's degree in Computer Science, Software Engineering, or a related field.

  • 5+ years of experience in backend software development, with a focus on Java and AWS technologies.

  • Strong experience in building and operating low latency, high scale services in a distributed environment.

  • Proficient in Java programming, with a deep understanding of its ecosystem and related frameworks.

  • Knowledge of microservices architecture, containerization technologies (Docker, Kubernetes), and distributed data systems (Kafka, Clickhouse).

  • Familiarity with RESTful API design, and a strong understanding of security best practices.

  • Experience with CI/CD tools (Jenkins, Git, Maven, Gradle) and agile development methodologies.

  • Excellent problem-solving skills, attention to detail, and a strong ability to work independently or as part of a team.

  • Strong communication skills, both written and verbal.

If you are passionate about backend development, real-time streaming, and scalable data systems, join us at Oscilar and make an impact.

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MR

Marcus Rivera

Chief Revenue Officer

m.rivera@company.com
linkedin.com/in/marcusrivera
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