Senior/Staff Backend Engineer (London, Hybrid) at DualEntry
At a glance
- Company
- DualEntry
- Location
- London, United Kingdom
- Work arrangement
- Hybrid
- Employment type
- Full-time
- Experience
- 5–10 years
- Working hours
- 40 hours
- Visa sponsorship
- Offered, according to the listing
- Posted
- Added to The Stack
Apply for this role at DualEntry
About the role
Responsibilities:
- Design and implement backend systems and REST/graph APIs to run real-time, business-critical accounting logic.
- Own end-to-end delivery for features: architecture, CI/CD pipelines, automated tests, monitoring, and production rollout.
- Design and evolve database schemas, migrations, queries and ORMs to support complex business rules and high data integrity.
- Integrate and harden third-party services and external systems, actively managing edge cases and failure modes.
- Build observability (metrics, logs, alerts) and respond to production incidents, iterating on reliability improvements.
Requirements:
- 5+ years of backend engineering experience with strong product-focused delivery and system design.
- Proven experience with relational databases (PostgreSQL), schema design, SQL and migrations.
- Production deployment experience on AWS or similar, with CI/CD, monitoring and production-readiness practices.
- Strong grasp of complex business logic, edge-case handling and API design for dependable systems.
- Preferred: Python experience and familiarity with modern web frameworks (FastAPI, Flask, Django). High ownership, pragmatic problem solving, and strong communication skills.
Responsibilities
Design and build backend systems and APIs to support real-time, business-critical accounting logic. Manage the full feature lifecycle including architecture, CI/CD, testing, monitoring, and integration with third-party tools.
Requirements
Requires 5+ years of backend engineering experience with strong proficiency in database design and complex business logic. Candidates should have experience deploying on AWS and a strong preference for Python and modern web frameworks.
Key skills
- Backend engineering — in 124 other listings on The Stack
- Python — in 1095 other listings on The Stack
- PostgreSQL — in 276 other listings on The Stack
- SQL — in 492 other listings on The Stack
- AWS — in 755 other listings on The Stack
- CI/CD — in 598 other listings on The Stack
- API design — in 185 other listings on The Stack
- System architecture — in 168 other listings on The Stack
- Database schema design
- FastAPI
- Flask
- Django
- Business logic
- Monitoring
- Testing
On The Stack (as of 2026-10-29)
Frequently asked questions about DualEntry
Is this Senior/Staff Backend Engineer (London, Hybrid) role still open?
It was posted on 2026-10-27 and is listed as active on The Stack. Confirm on DualEntry's application page before applying.
Does DualEntry offer visa sponsorship?
This listing is marked as offering visa sponsorship. Eligibility rules are set by the employer, so check the details on DualEntry's site.
Where is this role located?
The listing gives the location as London, United Kingdom. It is marked hybrid.
What skills does this role ask for?
The listing names: Backend engineering, Python, PostgreSQL, SQL, AWS, CI/CD, API design, System architecture, Database schema design, FastAPI, Flask, Django, Business logic, Monitoring, Testing.