Sr./Staff Backend Engineer - Java (India)

Location

Remote (India)

Job Description

As a Senior/Staff Backend Engineer, you'll own critical parts of the platform that banks and fintechs use to make real-time fraud, credit, and compliance decisions. You'll join a small, senior team where your technical decisions have direct impact.

What you'll do

• 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.

What we're looking for

• 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.

Nice to have (not required)

• 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.

Benefits

• 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.