Home › Companies › Dfns › Senior Software Engineer
Senior Software Engineer
Dfns · New York · Remote · Active · $140,000 / year · Deel Hire
Job facts
| Field | Value |
|---|---|
| Company | Dfns |
| Title | Senior Software Engineer |
| Normalized title | - |
| Department / team | - |
| Location | New York, NY, United States |
| Work model | Remote / Remote |
| Employment type | Full Time |
| Salary | $140,000 / year |
| Status | active |
| ATS provider | Deel Hire |
| Posted / first seen | 2026-02-23 / 2026-06-05 |
| Changed / last seen | 2026-06-05 / 2026-06-06 |
Related slices
| Page | What it contains | Open |
|---|---|---|
| Company jobs | Active postings from Dfns. | Open |
| Company breakdowns | Role, location, ATS, and work model facets for this company. | Open |
| ATS provider jobs | Active postings observed through Deel Hire. | Open |
| Provider filtered search | The same provider as a filtered job collection. | Open |
| City jobs | Active postings in New York. | Open |
| Work model jobs | Active Remote postings. | Open |
| Lifecycle events | Open, update, close, and reopen events for this posting. | Open |
| Original posting | Canonical source or apply URL captured from the ATS. | Open |
Linked records
| Company | Dfns |
| Source | 28963dcb-7c78-4b16-a140-442023ed8696 |
| ATS provider | Deel Hire |
Description
Join a team of engineers and cryptographers building the infrastructure behind the next generation of financial systems. We’re hiring a Senior Software Engineer to build and scale the core backend services that power our platform. You’ll design and operate APIs, microservices, and data systems that handle wallet operations, transaction processing, and integrations across multiple blockchains. You’ll work closely with product, security, and infrastructure teams to turn complex requirements into reliable production systems. This role goes beyond implementation. You’ll contribute to architecture decisions, improve development workflows, and help ensure the platform remains fast, secure, and resilient under real-world financial workloads. Responsibilities Design, build, and maintain secure, scalable backend services and APIs (REST). Architect databases and microservices for performance, reliability, and growth. Own projects end to end: from requests, implementation to production and iteration. Troubleshoot complex issues, resolve performance bottlenecks, ensure resilience. Collaborate with product, security, and leadership on roadmap and technical direction. Document systems, share knowledge, and support client-facing discussions. Requirements 8+ years of backend software engineering experience in fintech or finance. Strong in TypeScript, proven track record building scalable APIs and dev tools. Expertise with databases (PostgreSQL, DynamoDB, NoSQL) and AWS services. Skilled in microservices, CI/CD pipelines, observability, and SSLDC practices. Familiar with public key infrastructure and backend security fundamentals. Strong problem-solving, clear communication, and ability to deliver under pressure. Recruiting Process Intro call with Co-CEO (30 min) Personality and cognitive tests (45 min) Coding test in the language of your choice Focus interviews with the hiring panel (180 min) Code review Architecture review Security fundamentals Culture check fit Final interview with CTO (30 min) Reference calls and background checks Terms Title: Senior Software Engineer Salary: $140,000-240,000 per year (full-time). Equity: 100-200 stock options vested over 4 years. Benefits: Healthcare and travel expenses. Location: US or EU (remote-first, office optional). Equipment: MacBook Pro + essentials.
Full job record
| Job ID | 0a154ee6cca66c8bcca6a126c75f8a8979cc01ea |
| Org ID | b2af5b22-fff8-436a-ae5e-6ea85e31b9d6 |
| Source ID | 28963dcb-7c78-4b16-a140-442023ed8696 |
| Board ID | 28963dcb-7c78-4b16-a140-442023ed8696 |
| Provider | deel |
| Provider Job Key | 61e73849-f774-4c92-a1ae-47446f5d05af |
| Title | Senior Software Engineer |
| Normalized Title | — |
| Status | active |
| Active | yes |
| Location Text | New York |
| Department | — |
| Team | — |
| Employment Type | full_time |
| Workplace Type | remote |
| Remote Policy | remote |
| Country | United States |
| Region | NY |
| City | New York |
| Salary Raw | Join a team of engineers and cryptographers building the infrastructure behind the next generation of financial systems. We’re hiring a Senior Software Engineer to build and scale the core backend services that power our platform. You’ll design and operate APIs, microservices, and data systems that handle wallet operations, transaction processing, and integrations across multiple blockchains. You’ll work closely with product, security, and infrastructure teams to turn complex requirements into reliable production systems. This role goes beyond implementation. You’ll contribute to architecture decisions, improve development workflows, and help ensure the platform remains fast, secure, and resilient under real-world financial workloads. Responsibilities Design, build, and maintain secure, scalable backend services and APIs (REST). Architect databases and microservices for performance, reliability, and growth. Own projects end to end: from requests, implementation to production and iteration. Troubleshoot complex issues, resolve performance bottlenecks, ensure resilience. Collaborate with product, security, and leadership on roadmap and technical direction. Document systems, share knowledge, and support client-facing discussions. Requirements 8+ years of backend software engineering experience in fintech or finance. Strong in TypeScript, proven track record building scalable APIs and dev tools. Expertise with databases (PostgreSQL, DynamoDB, NoSQL) and AWS services. Skilled in microservices, CI/CD pipelines, observability, and SSLDC practices. Familiar with public key infrastructure and backend security fundamentals. Strong problem-solving, clear communication, and ability to deliver under pressure. Recruiting Process Intro call with Co-CEO (30 min) Personality and cognitive tests (45 min) Coding test in the language of your choice Focus interviews with the hiring panel (180 min) Code review Architecture review Security fundamentals Culture check fit Final interview with CTO (30 min) Reference calls and background checks Terms Title: Senior Software Engineer Salary: $140,000-240,000 per year (full-time). Equity: 100-200 stock options vested over 4 years. Benefits: Healthcare and travel expenses. Location: US or EU (remote-first, office optional). Equipment: MacBook Pro + essentials. |
| Salary Min | 140,000 |
| Salary Max | — |
| Salary Currency | USD |
| Salary Period | year |
| Source URL | https://jobs.deel.com/dfns/job-details/61e73849-f774-4c92-a1ae-47446f5d05af/overview |
| Apply URL | https://jobs.deel.com/dfns/job-details/61e73849-f774-4c92-a1ae-47446f5d05af/overview |
| First Seen At | 2026-06-05 03:14:36Z |
| Last Seen At | 2026-06-06 19:42:15Z |
| Last Checked At | 2026-06-06 19:42:15Z |
| Last Changed At | 2026-06-05 03:14:36Z |
| Inactive At | — |
| Source Posted At | 2026-02-23 21:55:37Z |
| Source Updated At | — |
| Raw Payload Uri | s3://job-postings-prod-raw-590183727216/raw/provider=deel/board=dfns/date=2026-06-06/2026-06-06T19-42-13-685Z-9379df011bdf0e92b135f169bfb402649acde63ca46aa3605e0605b2cbb0b9d8.json |
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