oscilar - Sr./Staff Backend Engineer - Java (India)

Remote - India3w ago

Remote Staff APAC Fintech Payments Backend Engineer Claude Slack Notion Linear Java

Requirements

• 5+ years of backend development, with deep expertise in Java and its ecosystem. • A track record of taking work from initial concept to production with minimal hand-holding. You're comfortable with ambiguity and know when to ask questions and when to make a call. • Solid experience building and operating low-latency, high-scale distributed systems in production. • Hands-on experience with AWS, microservices, and containers (Docker, Kubernetes). • Experience with event streaming and data systems such as Kafka, ClickHouse, PostgreSQL, and Redis. • Good understanding of API design and security best practices. • Strong written and verbal communication skills. We work async a lot, and Claude is part of how we work every day, connected to Slack, Notion, Linear, GitHub, etc. • Experience with Flink, Temporal, or Databricks. • Experience in fintech, fraud prevention, risk, or payments. • A degree in Computer Science, Software Engineering, or a related field. • Experience using AI coding agents (e.g. Claude Code) in day-to-day development.

Responsibilities

• Own features end to end: turn an idea or customer problem into a design, build it, ship it safely (GitHub Actions, feature flags with LaunchDarkly), and keep it running well in production. • Build and scale the Java services at the core of our decisioning platform, where latency and reliability directly affect our customers. • Work on real-time streaming and data systems (Kafka, Flink, ClickHouse, Databricks) handling high event volumes with tight latency requirements. • Build reliable processes with workflow orchestration (e.g. Temporal). • Make technical decisions, not just implement them: propose architecture, weigh trade-offs, and write design docs. • Work directly with product, frontend, and customer-facing teams to understand the problem before writing code. • Own production: monitoring, performance tuning, and fixing root causes, not symptoms. • Raise the engineering bar through code reviews, knowledge sharing, and helping others grow.

Benefits

• 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. • Remote-first culture: 100% remote team, and healthy overlap with our teams in Brazil, Poland, Uk, Canada and the US. • Technical: AI-first company; both co-founders are engineers at heart, and over 50% of the company is Engineering and Product. • Culture: Family-friendly environment; regular team events and offsites (2025: Mexico City, Mexico; 2026: Miami, Florida; 2027: Cancún, Mexico). • Development: Unparalleled learning and professional development opportunities. • Equipment: the latest MacBook or a Linux machine if you prefer. • If you are passionate about backend development, real-time streaming, and scalable data systems, join us at Oscilar and make an impact.