About the Role
We are looking for a Senior Software Engineer, Backend to join our engineering team and contribute to a large, complex production platform used by sophisticated financial services clients.
This is a hands-on backend role for someone whose career has become deeply Python-focused. You should be comfortable navigating a mature codebase, owning features end-to-end, debugging issues across system layers, and making practical engineering decisions that balance quality, scalability, and business impact.
You will work closely with Product and Engineering to understand requirements, shape technical solutions, implement backend functionality, improve existing systems, and help ensure smooth delivery from design through deployment and maintenance. The ideal candidate is highly analytical, self-sufficient, communicative, and comfortable working with large datasets and complex domain logic.
What You'll Do
- Collaborate with Product and Engineering to understand, refine, and shape functional requirements.
- Design, build, test, deploy, and maintain backend features using Python, Django, PostgreSQL, and related technologies.
- Take ownership of work from technical design through implementation, production release, and ongoing support.
- Navigate and improve a large, mature codebase with years of production history.
- Troubleshoot, debug, and resolve issues across application logic, data flows, APIs, background jobs, and database layers.
- Identify performance bottlenecks and implement practical, scalable improvements.
- Write clean, maintainable, well-tested code that supports long-term product reliability.
- Review tickets, provide clear updates, give feedback to peers, and contribute to strong engineering practices.
What We're Looking For
- 5+ years of backend software development experience.
- Strong, career-depth experience with Python as your primary backend language.
- Production experience with Django, or deep experience with another Python web framework such as FastAPI or Flask.
- Demonstrated experience owning features or technical projects from design through deployment and maintenance.
- Strong debugging skills and comfort working in large, complex, mature codebases.
- Hands-on experience with PostgreSQL, including indexing, query optimization, and diagnosing slow queries.
- Experience building and maintaining REST APIs.
- Ability to reason about performance, scalability, and reliability in production systems.
- Familiarity with tools and technologies such as Celery, Redis, Git, and modern backend development workflows.
- Clear communication skills and the ability to work independently while knowing when to align with the broader team.
Nice to Have
- Experience with trading, portfolio management, wealth management, risk, reporting, or other financial software systems.
- Experience working with large datasets or complex data-heavy applications.
- Experience with AWS or other cloud platforms.
- Experience with NumPy, pandas, or similar Python data tools.
- Background in Computer Science, Mathematics, Engineering, or a related technical discipline.
Perks and Benefits
- Competitive compensation package with bonus eligibility.
- Comprehensive healthcare benefits.
- Employee and Family Assistance Program.
- Fitness and wellness credit.
- Continuing education allowance.
- Flexible hours and purpose-driven hybrid work policy.
- Ability to work abroad for up to two months per year, subject to conditions.
- Choice of Mac or Windows equipment.
