Home › Companies › Uphold › Core Engine, Senior Backend Engineer
Core Engine, Senior Backend Engineer
Uphold · Braga, 4700-312, Portugal · Active · BambooHR
Job facts
| Field | Value |
|---|---|
| Company | Uphold |
| Title | Core Engine, Senior Backend Engineer |
| Normalized title | - |
| Department / team | Engineering |
| Location | Braga |
| Work model | - |
| Employment type | Full Time |
| Salary | - |
| Status | active |
| ATS provider | BambooHR |
| Posted / first seen | 2026-06-02 / 2026-06-03 |
| Changed / last seen | 2026-06-03 / 2026-06-06 |
Related slices
| Page | What it contains | Open |
|---|---|---|
| Company jobs | Active postings from Uphold. | Open |
| Company breakdowns | Role, location, ATS, and work model facets for this company. | Open |
| ATS provider jobs | Active postings observed through BambooHR. | Open |
| Provider filtered search | The same provider as a filtered job collection. | Open |
| City jobs | Active postings in Braga. | Open |
| Department jobs | Active postings in Engineering. | 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 | Uphold |
| Source | 0c8d63f5-fb17-41ff-96c8-efc419de59c3 |
| ATS provider | BambooHR |
Description
About Uphold
Uphold is a financial technology company that believes on-chain services are the future of finance. It provides modern infrastructure for on-chain payments, banking and investments. Offering Consumer Services, Business Services and Institutional Trading, Uphold makes pioneering financial services easy and trusted for millions of customers in more than 140 countries.
Uphold integrates with more than 30 trading venues, including centralized and decentralized exchanges, to deliver superior liquidity and optimal execution. Uphold never loans out customer assets and is always 100% reserved. The company pioneered radical transparency and uniquely publishes its assets and liabilities every 30 seconds on a public website ( https://uphold.com/en-us/transparency ).
Uphold strips away the complexity and lack of transparency to open up Web3 finance for everyone.
To learn more about Uphold, please visit https://uphold.com .
Job Summary
Most backend roles are about shipping features on top of existing infrastructure. This one is different.
Core Engine is Uphold's ground-up rebuild of the transaction engine that powers financial operations for millions of customers across 140+ countries. We are replacing a 10+ year-old backend with a modern double-entry ledger built on TigerBeetle, PostgreSQL, and Go - and migrating the entire transaction history to it, live, without disrupting production.
It is the most consequential engineering project happening at Uphold right now. If financial correctness, distributed systems, and systems that genuinely cannot be wrong are what you care about, this is the room to be in.
Essential Duties and Responsibilities
Design and implement financial workflows across the full ledger system: account management, transaction processing, settlement, and legacy migration
Build double-entry accounting logic where correctness is non-negotiable - every debit has a credit, every record is permanent by design
Work with TigerBeetle, a purpose-built high-performance financial ledger database and one of the more interesting pieces of infrastructure in fintech right now
Use Temporal for durable, fault-tolerant financial workflows that must complete exactly once, even across failures
Define and maintain gRPC service contracts that other internal systems depend on
Contribute to the live migration of millions of legacy transactions into the new system - one of the harder problems in software: changing the engine while the car is moving
Write tests that prove financial correctness, not just exercise code paths
Other duties and responsibilities as reasonably required or assigned by the line manager
Required Qualifications and Skills
7+ years of experience in the field but we care more about how you think than how long you've been doing it
Solid production Go experience and strong opinions about when simplicity beats cleverness
Understanding of distributed systems well enough to reason about failure modes, not just the happy path
Comfortable with relational databases - you know what a query plan looks like
Experience working on systems where a bug has real consequences - financial, infrastructure, medical, or similar
You think about edge cases before you write the code, not after the incident
Fluent written and oral English
Preferred Qualifications
Experience with financial systems, double-entry bookkeeping, or payment processing
Experience with Temporal, Cadence, or another workflow orchestration system in production
Large-scale database migrations without downtime
TigerBeetle - if you already know what it is, we want to talk
Fluency in cryptocurrencies or other digital assets as they are core to our business
Open source contributions, conference talks, or writing about your craft
What We Offer
Innovation and Impact: Contribute to pioneering projects in a dynamic and challenging environment.
Competitive Compensation: Performance bonuses, and comprehensive benefits on top of a competitive salary.
Strong Company Culture: Thrive in a supportive, collegiate environment with values of integrity, teamwork, accountability, and excellence.
Global Collaboration: Participate in regular updates, strategy sessions, and networking opportunities across the group.
Development Opportunities: Access training and mentorship programs.
Flexibility: Enjoy options to work from home, other locations, or adjust your hours.
Inclusive Environment: Value and respect diverse perspectives.
Our Benefits
Annual bonus program based on individual, team and company performance.
Generous PTO, healthcare, and employee assistance programs.
Engaging events and celebrations.
Well-stocked office kitchen with a foodie culture.
Join us to grow, innovate, and contribute meaningfully. Be part of our talented team!
Visit our careers page for more exciting opportunities, if this role isn't the perfect fit.
EEOC Employer
We're proud to be an Equal Opportunity Employer and we celebrate our employees' differences, including race, color, religion, gender identity, national origin, age, military service eligibility, veteran status, sexual orientation, marital status, disability, and any other protected classes. Difference makes us stronger and better - together.
Full job record
| Job ID | bb25c0c3789041f21f208419b5d5db80e309d3f3 |
| Org ID | 5e55380d-45e7-4671-9ae2-486c1821ac77 |
| Source ID | 0c8d63f5-fb17-41ff-96c8-efc419de59c3 |
| Board ID | 0c8d63f5-fb17-41ff-96c8-efc419de59c3 |
| Provider | bamboohr |
| Provider Job Key | 860 |
| Title | Core Engine, Senior Backend Engineer |
| Normalized Title | — |
| Status | active |
| Active | yes |
| Location Text | Braga, 4700-312, Portugal |
| Department | Engineering |
| Team | — |
| Employment Type | full_time |
| Workplace Type | — |
| Remote Policy | — |
| Country | — |
| Region | — |
| City | Braga |
| Salary Raw | — |
| Salary Min | — |
| Salary Max | — |
| Salary Currency | — |
| Salary Period | — |
| Source URL | https://uphold.bamboohr.com/careers/860 |
| Apply URL | https://uphold.bamboohr.com/careers/860 |
| First Seen At | 2026-06-03 10:23:47Z |
| Last Seen At | 2026-06-06 10:19:48Z |
| Last Checked At | 2026-06-06 10:19:48Z |
| Last Changed At | 2026-06-03 10:23:47Z |
| Inactive At | — |
| Source Posted At | 2026-06-02 00:00:00Z |
| Source Updated At | — |
| Raw Payload Uri | s3://job-postings-prod-raw-590183727216/raw/provider=bamboohr/board=uphold/date=2026-06-06/2026-06-06T10-19-46-086Z-c1c6c05db9f1b8ebd2efa58ad203a4c01eb86043c0e57e3da3c55e1ed038f64c.json |
Event Fields
{
"content_hash": "c6428d323ef3ad73a40a91d89b04b3628d6f1785e77e6120ff26e359345c2191",
"source_hash": "8bcef3fbbda7f319da30010d9723343b263f2b908e439a57189bcfc26fb88e95",
"last_changed_at": "2026-06-03T10:23:47.404Z",
"active_status": "active"
}Parsed Structured
{
"language": "en",
"location": {
"raw": "Braga, 4700-312, Portugal",
"city": "Braga",
"region": null,
"country": null,
"is_remote": false,
"confidence": 0.8
},
"salary_max": null,
"salary_min": null,
"inferred_at": "2026-06-06T10:19:48.003Z",
"launch_scope": {
"reason": "bamboohr_production_catalog",
"included": true,
"location": {
"raw": "Braga, 4700-312, Portugal",
"city": "Braga",
"region": null,
"country": null,
"is_remote": false,
"confidence": 0.8
},
"countries": []
},
"remote_policy": null,
"salary_period": null,
"workplace_type": null,
"salary_currency": null
}Extensions
{}Native Structured
{
"list_job": {
"id": "860",
"isRemote": null,
"location": {
"city": "Braga",
"state": null
},
"atsLocation": {
"city": null,
"state": null,
"country": null,
"province": null
},
"departmentId": "18752",
"locationType": "2",
"jobOpeningName": "Core Engine, Senior Backend Engineer",
"departmentLabel": "Engineering",
"employmentStatusLabel": "Full-Time"
},
"detail_errors": [],
"detail_job_opening": {
"location": {
"city": "Braga",
"state": null,
"postalCode": "4700-312",
"addressCountry": "Portugal"
},
"datePosted": "2026-06-02",
"atsLocation": {
"city": null,
"state": null,
"country": null,
"countryId": null
},
"description": "<p><span style=\"color: #1a1a1a; font-family: Arial,sans-serif; font-size: 12pt; font-weight: bold\">About Uphold</span></p>\n<p><span style=\"color: rgb(60, 60, 60); font-family: Arial, sans-serif; font-size: 10pt\">Uphold is a financial technology company that believes on-chain services are the future of finance. It provides modern infrastructure for on-chain payments, banking and investments. Offering Consumer Services, Business Services and Institutional Trading, Uphold makes pioneering financial services easy and trusted for millions of customers in more than 140 countries.</span></p>\n<p><span style=\"color: rgb(60, 60, 60); font-family: Arial, sans-serif; font-size: 10pt\">Uphold integrates with more than 30 trading venues, including centralized and decentralized exchanges, to deliver superior liquidity and optimal execution. Uphold never loans out customer assets and is always 100% reserved. The company pioneered radical transparency and uniquely publishes its assets and liabilities every 30 seconds on a public website (</span><a href=\"https://uphold.com/en-us/transparency\" target=\"_blank\" rel=\"noopener noreferrer\"><span style=\"font-family: Arial, sans-serif; font-size: 10pt\">https://uphold.com/en-us/transparency</span></a><span style=\"color: rgb(60, 60, 60); font-family: Arial, sans-serif; font-size: 10pt\">).</span></p>\n<p><br></p>\n<p><span style=\"color: rgb(60, 60, 60); font-family: Arial, sans-serif; font-size: 10pt\">Uphold strips away the complexity and lack of transparency to open up Web3 finance for everyone.</span></p>\n<p><span style=\"color: rgb(60, 60, 60); font-family: Arial, sans-serif; font-size: 10pt\">To learn more about Uphold, please visit </span><a href=\"https://uphold.com\" target=\"_blank\" rel=\"noopener noreferrer\"><span style=\"font-family: Arial, sans-serif; font-size: 10pt\">https://uphold.com</span></a><span style=\"color: rgb(60, 60, 60); font-family: Arial, sans-serif; font-size: 10pt\">.</span></p>\n<p><br></p>\n<p><span style=\"color: #1a1a1a; font-family: Arial,sans-serif; font-size: 12pt; font-weight: bold\">Job Summary</span></p>\n<p><span style=\"color: rgb(60, 60, 60); font-family: Arial, sans-serif; font-size: 10pt\">Most backend roles are about shipping features on top of existing infrastructure. This one is different.</span></p>\n<p><span style=\"color: rgb(60, 60, 60); font-family: Arial, sans-serif; font-size: 10pt\">Core Engine is Uphold's ground-up rebuild of the transaction engine that powers financial operations for millions of customers across 140+ countries. We are replacing a 10+ year-old backend with a modern double-entry ledger built on TigerBeetle, PostgreSQL, and Go - and migrating the entire transaction history to it, live, without disrupting production.</span></p>\n<p><span style=\"color: rgb(60, 60, 60); font-family: Arial, sans-serif; font-size: 10pt\">It is the most consequential engineering project happening at Uphold right now. If financial correctness, distributed systems, and systems that genuinely cannot be wrong are what you care about, this is the room to be in.</span></p>\n<p><br></p>\n<p><span style=\"color: #1a1a1a; font-family: Arial,sans-serif; font-size: 12pt; font-weight: bold\">Essential Duties and Responsibilities</span></p>\n<ul>\n<li><span style=\"color: rgb(60, 60, 60); font-family: Arial, sans-serif; font-size: 10pt\">Design and implement financial workflows across the full ledger system: account management, transaction processing, settlement, and legacy migration</span></li>\n<li><span style=\"color: rgb(60, 60, 60); font-family: Arial, sans-serif; font-size: 10pt\">Build double-entry accounting logic where correctness is non-negotiable - every debit has a credit, every record is permanent by design</span></li>\n<li><span style=\"color: rgb(60, 60, 60); font-family: Arial, sans-serif; font-size: 10pt\">Work with TigerBeetle, a purpose-built high-performance financial ledger database and one of the more interesting pieces of infrastructure in fintech right now</span></li>\n<li><span style=\"color: rgb(60, 60, 60); font-family: Arial, sans-serif; font-size: 10pt\">Use Temporal for durable, fault-tolerant financial workflows that must complete exactly once, even across failures</span></li>\n<li><span style=\"color: rgb(60, 60, 60); font-family: Arial, sans-serif; font-size: 10pt\">Define and maintain gRPC service contracts that other internal systems depend on</span></li>\n<li><span style=\"color: rgb(60, 60, 60); font-family: Arial, sans-serif; font-size: 10pt\">Contribute to the live migration of millions of legacy transactions into the new system - one of the harder problems in software: changing the engine while the car is moving</span></li>\n<li><span style=\"color: rgb(60, 60, 60); font-family: Arial, sans-serif; font-size: 10pt\">Write tests that prove financial correctness, not just exercise code paths</span></li>\n<li><span style=\"color: rgb(60, 60, 60); font-family: Arial, sans-serif; font-size: 10pt\">Other duties and responsibilities as reasonably required or assigned by the line manager</span></li>\n</ul>\n<p><br></p>\n<p><span style=\"color: #1a1a1a; font-family: Arial,sans-serif; font-size: 12pt; font-weight: bold\">Required Qualifications and Skills</span></p>\n<ul>\n<li><span style=\"color: rgb(60, 60, 60); font-family: Arial, sans-serif; font-size: 10pt\">7+ years of experience in the field but we care more about how you think than how long you've been doing it</span></li>\n<li><span style=\"color: rgb(60, 60, 60); font-family: Arial, sans-serif; font-size: 10pt\">Solid production Go experience and strong opinions about when simplicity beats cleverness</span></li>\n<li><span style=\"color: rgb(60, 60, 60); font-family: Arial, sans-serif; font-size: 10pt\">Understanding of distributed systems well enough to reason about failure modes, not just the happy path</span></li>\n<li><span style=\"color: rgb(60, 60, 60); font-family: Arial, sans-serif; font-size: 10pt\">Comfortable with relational databases - you know what a query plan looks like</span></li>\n<li><span style=\"color: rgb(60, 60, 60); font-family: Arial, sans-serif; font-size: 10pt\">Experience working on systems where a bug has real consequences - financial, infrastructure, medical, or similar</span></li>\n<li><span style=\"color: rgb(60, 60, 60); font-family: Arial, sans-serif; font-size: 10pt\">You think about edge cases before you write the code, not after the incident</span></li>\n<li><span style=\"color: rgb(60, 60, 60); font-family: Arial, sans-serif; font-size: 10pt\">Fluent written and oral English</span></li>\n</ul>\n<p><br></p>\n<p><span style=\"color: #1a1a1a; font-family: Arial,sans-serif; font-size: 12pt; font-weight: bold\">Preferred Qualifications </span></p>\n<ul>\n<li><span style=\"color: rgb(60, 60, 60); font-family: Arial, sans-serif; font-size: 10pt\">Experience with financial systems, double-entry bookkeeping, or payment processing</span></li>\n<li><span style=\"color: rgb(60, 60, 60); font-family: Arial, sans-serif; font-size: 10pt\">Experience with Temporal, Cadence, or another workflow orchestration system in production</span></li>\n<li><span style=\"color: rgb(60, 60, 60); font-family: Arial, sans-serif; font-size: 10pt\">Large-scale database migrations without downtime</span></li>\n<li><span style=\"color: rgb(60, 60, 60); font-family: Arial, sans-serif; font-size: 10pt\">TigerBeetle - if you already know what it is, we want to talk</span></li>\n<li><span style=\"color: rgb(60, 60, 60); font-family: Arial, sans-serif; font-size: 10pt\">Fluency in cryptocurrencies or other digital assets as they are core to our business</span></li>\n<li><span style=\"color: rgb(60, 60, 60); font-family: Arial, sans-serif; font-size: 10pt\">Open source contributions, conference talks, or writing about your craft</span></li>\n</ul>\n<p><br></p>\n<p><span style=\"color: #1a1a1a; font-family: Arial,sans-serif; font-size: 12pt; font-weight: bold\">What We Offer</span></p>\n<ul>\n<li><span style=\"color: rgb(60, 60, 60); font-family: Arial, sans-serif; font-size: 10pt; font-weight: bold\">Innovation and Impact:</span><span style=\"color: rgb(60, 60, 60); font-family: Arial, sans-serif; font-size: 10pt\"> Contribute to pioneering projects in a dynamic and challenging environment.</span></li>\n<li><span style=\"color: rgb(60, 60, 60); font-family: Arial, sans-serif; font-size: 10pt; font-weight: bold\">Competitive Compensation:</span><span style=\"color: rgb(60, 60, 60); font-family: Arial, sans-serif; font-size: 10pt\"> Performance bonuses, and comprehensive benefits on top of a competitive salary.</span></li>\n<li><span style=\"color: rgb(60, 60, 60); font-family: Arial, sans-serif; font-size: 10pt; font-weight: bold\">Strong Company Culture:</span><span style=\"color: rgb(60, 60, 60); font-family: Arial, sans-serif; font-size: 10pt\"> Thrive in a supportive, collegiate environment with values of integrity, teamwork, accountability, and excellence.</span></li>\n<li><span style=\"color: rgb(60, 60, 60); font-family: Arial, sans-serif; font-size: 10pt; font-weight: bold\">Global Collaboration:</span><span style=\"color: rgb(60, 60, 60); font-family: Arial, sans-serif; font-size: 10pt\"> Participate in regular updates, strategy sessions, and networking opportunities across the group.</span></li>\n<li><span style=\"color: rgb(60, 60, 60); font-family: Arial, sans-serif; font-size: 10pt; font-weight: bold\">Development Opportunities:</span><span style=\"color: rgb(60, 60, 60); font-family: Arial, sans-serif; font-size: 10pt\"> Access training and mentorship programs.</span></li>\n<li><span style=\"color: rgb(60, 60, 60); font-family: Arial, sans-serif; font-size: 10pt; font-weight: bold\">Flexibility:</span><span style=\"color: rgb(60, 60, 60); font-family: Arial, sans-serif; font-size: 10pt\"> Enjoy options to work from home, other locations, or adjust your hours.</span></li>\n<li><span style=\"color: rgb(60, 60, 60); font-family: Arial, sans-serif; font-size: 10pt; font-weight: bold\">Inclusive Environment:</span><span style=\"color: rgb(60, 60, 60); font-family: Arial, sans-serif; font-size: 10pt\"> Value and respect diverse perspectives.</span></li>\n</ul>\n<p><br></p>\n<p><span style=\"color: #1a1a1a; font-family: Arial,sans-serif; font-size: 12pt; font-weight: bold\">Our Benefits</span></p>\n<ul>\n<li><span style=\"color: rgb(60, 60, 60); font-family: Arial, sans-serif; font-size: 10pt\">Annual bonus program based on individual, team and company performance.</span></li>\n<li><span style=\"color: rgb(60, 60, 60); font-family: Arial, sans-serif; font-size: 10pt\">Generous PTO, healthcare, and employee assistance programs.</span></li>\n<li><span style=\"color: rgb(60, 60, 60); font-family: Arial, sans-serif; font-size: 10pt\">Engaging events and celebrations.</span></li>\n<li><span style=\"color: rgb(60, 60, 60); font-family: Arial, sans-serif; font-size: 10pt\">Well-stocked office kitchen with a foodie culture.</span></li>\n</ul>\n<p><br></p>\n<p><span style=\"color: rgb(60, 60, 60); font-family: Arial, sans-serif; font-size: 10pt\">Join us to grow, innovate, and contribute meaningfully. Be part of our talented team!</span></p>\n<p><span style=\"color: rgb(60, 60, 60); font-family: Arial, sans-serif; font-size: 10pt\">Visit our </span><a href=\"https://uphold.com/careers\" target=\"_blank\" rel=\"noopener noreferrer\"><span style=\"font-family: Arial, sans-serif; font-size: 10pt\">careers page</span></a><span style=\"color: rgb(60, 60, 60); font-family: Arial, sans-serif; font-size: 10pt\"> for more exciting opportunities, if this role isn't the perfect fit.</span></p>\n<p><br></p>\n<p><span style=\"color: #1a1a1a; font-family: Arial,sans-serif; font-size: 12pt; font-weight: bold\">EEOC Employer</span></p>\n<p><span style=\"color: rgb(60, 60, 60); font-family: Arial, sans-serif; font-size: 10pt\">We're proud to be an Equal Opportunity Employer and we celebrate our employees' differences, including race, color, religion, gender identity, national origin, age, military service eligibility, veteran status, sexual orientation, marital status, disability, and any other protected classes. Difference makes us stronger and better - together.</span></p>",
"compensation": null,
"departmentId": "18752",
"locationType": "2",
"seekPromoted": false,
"jobCategoryId": null,
"jobOpeningName": "Core Engine, Senior Backend Engineer",
"departmentLabel": "Engineering",
"jobOpeningStatus": "Open",
"minimumExperience": "Experienced",
"jobOpeningShareUrl": "https://uphold.bamboohr.com/careers/860",
"employmentStatusLabel": "Full-Time"
}
}Get this page with API
Rendered from the bluedoor Job Postings API. Reproduce it:
GET https://api.bluedoor.sh/job-postings/v1/jobs/bb25c0c3789041f21f208419b5d5db80e309d3f3?include=descriptionJSONGET https://api.bluedoor.sh/job-postings/v1/orgs/5e55380d-45e7-4671-9ae2-486c1821ac77JSONGET https://api.bluedoor.sh/job-postings/v1/sources/0c8d63f5-fb17-41ff-96c8-efc419de59c3JSONGET https://api.bluedoor.sh/job-postings/v1/jobs/bb25c0c3789041f21f208419b5d5db80e309d3f3/eventsJSON