United States onlyWorth is now looking looking for a Senior Software Engineer to own major features and subsystems that power our core products. This is a hands-on engineering role for someone who thrives in production code, handles ambiguity with confidence, and raises the technical bar for the team around them.
You will design and deliver scalable systems, break down complex product requirements into thoughtful technical plans, and anticipate performance, reliability, and maintainability challenges before they surface in production. Beyond your own execution, you will mentor intermediate and associate engineers, helping them grow in system design, code quality, and engineering judgment.
Your impact will extend across your team and product area through both direct contribution and technical leadership.
Responsibilities
- Own the design and implementation of major features or subsystems from concept through production.
- Break down ambiguous requirements into clear technical designs with well-understood tradeoffs.
- Write high-quality production code across backend and frontend systems using Node.js, TypeScript, Nest.js, and React.js.
- Design and evolve PostgreSQL schemas with strong attention to indexing, performance, and data integrity.
- Optimize slow queries and resolve systemic performance bottlenecks.
- Build and maintain event-driven workflows using Kafka and Redis.
- Deploy, monitor, and debug containerized services in Kubernetes environments.
- Identify and address technical debt within owned systems and lead pragmatic refactors.
- Lead by example in code reviews, coaching others on clean architecture, testing strategy, and maintainable design.
- Handle production incidents methodically and improve systems to reduce recurrence.
- Mentor associate and intermediate engineers through pairing, design reviews, and structured feedback.
- Communicate complex technical tradeoffs clearly across engineering, product, and leadership.
Technology Stack
- Languages & Runtimes: Node.js, TypeScript
- Frameworks: Nest.js, React.js
- Data & Messaging: PostgreSQL, Kafka, Redis, Redshift
- Infrastructure & Orchestration: Kubernetes, ArgoCD, AWS
- Monitoring: DataDog
Requirements
- 8+ years of professional software engineering experience.
- Demonstrated ownership of major features or subsystems in production environments.
- Deep expertise in the Node.js and TypeScript ecosystem.
- Strong system design skills with experience building scalable distributed systems.
- Hands-on experience with PostgreSQL, including schema design and query optimization.
- Experience building or maintaining event-driven systems using Kafka.
- Comfort operating containerized applications in Kubernetes.
- Proven ability to refactor complex or legacy code into modular, maintainable architecture.
- Demonstrated experience mentoring junior engineers and raising team quality standards.
- Ability to operate effectively in high-ambiguity environments.
Success Metrics
- Major features and subsystems ship reliably and on schedule.
- Production systems meet defined performance and reliability targets (P90/P99 latency, uptime, MTTR).
- Code quality and maintainability measurably improve within areas of ownership.
- Associate and intermediate engineers demonstrate growth in autonomy and technical capability.
- The team’s delivery velocity improves due to clearer technical direction and stronger execution.
Bonus Points (nice to haves, not requirements)
- Experience with AWS services including MSK, RDS, EKS, S3, and Lambda.
- Experience with Infrastructure-as-Code tools such as Terraform.
- Strong background in distributed caching strategies using Redis.
- Experience with Redshift schema design and ETL pipelines.
- Production experience with Python in backend systems.
Benefits
- Health Care Plan (Medical, Dental & Vision)
- Retirement Plan (401k, IRA)
- Life Insurance
- Flexible Paid Time Off
- 9 paid Holidays
- Family Leave
- Remote
- Hybrid work (for Orlando Associates)
- Free Food & Snacks (Orlando)
- Wellness Resources
United Kingdom