Principal Engineer specializing in Pipeline Integrity Services within the Oil & Gas sector. Involves customer communication, project execution, and mentoring junior engineers as part of ROSEN’s Engineering Team.
About the role
- Full Stack Engineer developing payment processing solutions for a SaaS fintech startup. Building and improving subscription management features while ensuring code quality and system reliability.
Responsibilities
- Ship key product features: Build new subscription management capabilities-lifecycle state transitions, billing logic, payment method handling. Features you ship will go directly to production
- Refactor and improve existing systems: Identify bottlenecks, improve code quality, and enhance our payment processing flows. We'll teach you how to read complex codebases and make them better
- Debug production issues: Investigate payment failures, trace issues through logs and databases, and implement fixes. Learn systematic debugging in distributed systems
- Design and implement database changes: Write migrations, design schemas for new features, and optimize queries for financial data accuracy
- Build and extend APIs: Develop REST endpoints using NestJS, implement business logic, and ensure type safety across the stack
- Write comprehensive tests: Add test coverage for new features and existing code. Learn testing strategies that matter for production systems
Requirements
- 3+ years of professional experience building production web applications with NestJS, Next.js, and TypeScript
- Hands-on experience working with PostgreSQL based databases (Supabase is a strong plus) including schema design, migrations, and performance optimization
- Experience deploying and operating production systems using Vercel and AWS
- Direct experience integrating with eCommerce platforms (Shopify) and at least one payment processor such as Stripe, Adyen, Airwallex, or NMI in real production environments
- Proven experience building and maintaining payment flows (billing logic, payment method handling, retries, webhooks, and failure handling)
- Experience designing and consuming REST APIs with strong typing and clear contracts across services
- Comfort working with production logs, databases, and monitoring tools to debug payment and financial issues
- Experience writing meaningful automated tests for critical business logic (especially around billing and payments)
- Strong understanding of data integrity, idempotency, and error handling in financial systems
- Nice to have:
- Experience with AWS EventBridge, SQS, ECS, or similar event and messaging infrastructure
- Familiarity with containerized environments and orchestration (Docker, Kubernetes)
- Exposure to PCI DSS and SOC 2 compliance considerations in payment or fintech systems
- What we explicitly look for:
- You have used these tools and systems in real production environments, not just side projects or tutorials
- You have shipped payment-related features that real users rely on
- You understand the operational and reliability requirements of financial systems.
Benefits
- Fully remote role with EST working hours
- High-impact position with real ownership and autonomy
- Fast-growing SaaS and fintech environment with real problems to solve
- Clear growth path as the company scales
- Performance-based bonuses and career development opportunities
Job title
Job type
Experience level
Salary
Not specified
Degree requirement
Tech skills
Location requirements
Report this job
Found something wrong with the page? Please let us know by submitting a report below.
Pega Senior Software Engineer responsible for design, development and delivery of complex Pega solutions working closely with agile teams. Contributing to high quality solutions and ongoing system support.
Senior Software Engineer developing core systems for Caribou, a company tackling the caregiver shortage. Architecting distributed systems and collaborating across teams to enhance caregiver experiences.
Software Architect in AI/ML at Autodesk, designing cloud - native solutions for Product Lifecycle Management workflows. Responsible for architecting workflows and building production - ready AI systems.
Software Engineer 2 at Abnormal evolving the developer platform, focusing on CI/CD tooling and shared libraries. Collaborating across teams to enhance engineering effectiveness and test infrastructure.
Senior Software Engineer in the Dev Accelerator team at Abnormal. Designing and evolving developer tooling and infrastructure for fast and reliable AI - native workflows.
Full Stack Software Developer focusing on misinformation mitigation at Mila. Leading system development to combat misinformation through AI tools and web applications.
Backend Software Engineer helping Lime revolutionize urban transportation with impact on scalable backend systems. Developing technology for the fleet of connected vehicles.
NPI Product Engineer supporting new product development activities at Semtech in semiconductor technologies. Collaborating with cross - functional teams and building technical expertise under senior engineers' guidance.
Senior Fullstack Engineer on Blackpoint’s Integrations Team, building platform for real - time threat detection. Engage in AI - first engineering to strengthen integration capabilities.