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Software Development Engineer in Test

Cardano Foundation · United Kingdom - Remote · Remote · Active · Personio

Job facts

Field	Value
Company	Cardano Foundation
Title	Software Development Engineer in Test
Normalized title	-
Department / team	Decentralized Solutions Development / TA Team
Location	United Kingdom - Remote
Work model	Remote / Remote
Employment type	Full Time
Salary	-
Status	active
ATS provider	Personio
Posted / first seen	2026-04-17 / 2026-05-30
Changed / last seen	2026-06-03 / 2026-06-06

Related slices

Page	What it contains	Open
Company jobs	Active postings from Cardano Foundation.	Open
Company breakdowns	Role, location, ATS, and work model facets for this company.	Open
ATS provider jobs	Active postings observed through Personio.	Open
Provider filtered search	The same provider as a filtered job collection.	Open
Department jobs	Active postings in Decentralized Solutions Development.	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	Cardano Foundation
Source	1bb022ff-1b19-46e5-b007-a2f7e55f9056
ATS provider	Personio

Description

Your opportunity: Make a real difference in the blockchain industry! Build the change you want to see. Veridian is building the infrastructure layer for digital identity. Born as a Cardano Foundation initiative, our technology already powers credential issuance and verification across regulated industries. We are looking for an SDET to join a small, high impact team. You will shape quality from the ground up across everything we ship: the Veridian Wallet, enterprise credential management applications, cloud based backend services and open source protocol libraries. Our stack builds on the open protocols KERI and ACDC using components such as KERIA (Python), Signify-TS and Signify-Java. You will wear multiple hats, in a highly complex domain. Some weeks that means writing test automation frameworks. Other weeks it means jumping into CI/CD pipelines, debugging a flaky mobile build, reviewing security sensitive code or helping define acceptance criteria for a feature that did not exist last month. In this role you will: Design and implement end to end, integration and API test automation frameworks. Build CI/CD quality gates that catch regressions before they merge. Obsess over edge cases: revoked keys, out of order events, race conditions. Test across Veridian’s full product stack: wallet, services, libraries. Collaborate with frontend and backend engineers to improve testability. Own test environments, test data management and reporting. Your story: 3+ years in an SDET or test automation role. Strong hands-on experience developing production grade automation frameworks in languages like TypeScript and Java. Familiar with mobile testing (Appium, Maestro or similar). Background in security sensitive systems (key management, cryptographic operations). Exposure to fault tolerant domains (out of order messaging, connectivity failures). Comfort with CI/CD pipelines (GitHub Actions preferred), containers (Docker) and lifecycle tooling (Git, Jira/Confluence). Self motivated, independent and thorough in finding what others miss. Your impact: Ensure the reliability and security of identity systems used by governments and enterprises. Build lean, automated pipelines that let a small team ship fast without compromising quality. Define quality standards that become the team's standards. Nice to have: Fluency with AI tools to write tests more efficiently, generate edge cases and expand coverage. Industry experience in cryptography and key management. Familiarity with decentralized identity protocols and systems. Performance and load testing experience. Experience in a startup environment where speed, ownership and adaptability matter more than process.

Full job record

Job ID	4d8f521e027c0fec19a73803c7dd81834a950e27
Org ID	52785716-1d00-42c2-9bdb-778533b9f5e6
Source ID	1bb022ff-1b19-46e5-b007-a2f7e55f9056
Board ID	1bb022ff-1b19-46e5-b007-a2f7e55f9056
Provider	personio
Provider Job Key	2605095
Title	Software Development Engineer in Test
Normalized Title	—
Status	active
Active	yes
Location Text	United Kingdom - Remote
Department	Decentralized Solutions Development
Team	TA Team
Employment Type	full_time
Workplace Type	remote
Remote Policy	remote
Country	United Kingdom - Remote
Region	—
City	—
Salary Raw	—
Salary Min	—
Salary Max	—
Salary Currency	—
Salary Period	—
Source URL	https://cardano-foundation.jobs.personio.com/job/2605095?language=en
Apply URL	https://cardano-foundation.jobs.personio.com/job/2605095?language=en
First Seen At	2026-05-30 05:43:23Z
Last Seen At	2026-06-06 07:50:46Z
Last Checked At	2026-06-06 07:50:46Z
Last Changed At	2026-06-03 12:35:08Z
Inactive At	—
Source Posted At	2026-04-17 11:18:46Z
Source Updated At	—
Raw Payload Uri	s3://job-postings-prod-raw-590183727216/raw/provider=personio/board=cardano-foundation.com/date=2026-06-06/2026-06-06T07-50-45-913Z-4026d87fa3317cbc6ad7edcf4643fc54d8f45e126798af343330c2bdfd132552.json

Event Fields

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  "last_changed_at": "2026-06-03T12:35:08.654Z",
  "active_status": "active"
}

Parsed Structured

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  "location": {
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    "is_remote": true,
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  "inferred_at": "2026-06-06T07:50:46.467Z",
  "launch_scope": {
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  "salary_currency": null
}

Extensions

{}

Native Structured

{
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  "name": "Software Development Engineer in Test",
  "office": "United Kingdom - Remote",
  "keywords": [],
  "schedule": "full-time",
  "createdAt": "2026-04-17T11:18:46+00:00",
  "seniority": "experienced",
  "department": "Decentralized Solutions Development",
  "occupation": "general_and_other_engineering",
  "subcompany": null,
  "employmentType": "permanent",
  "jobDescriptions": [
    {
      "name": "Your opportunity:",
      "value": "<p>Make a real difference in the blockchain industry! Build the change you want to see.</p><p style=\"line-height:1.3800000000000001;margin-right:-1.7433070866141178pt;text-align:justify;margin-top:0pt;margin-bottom:0pt;\"><a href=\"http://www.veridian.id\" style=\"text-decoration:none;\"><span style=\"font-size:10pt;font-family:Arial, sans-serif;color:#1155cc;background-color:transparent;font-weight:400;font-style:normal;text-decoration:underline;\">Veridian</span></a><span style=\"font-size:10pt;font-family:Arial, sans-serif;color:#000000;background-color:transparent;font-weight:400;font-style:normal;text-decoration:none;\"> is building the infrastructure layer for digital identity. Born as a Cardano Foundation initiative, our technology already powers credential issuance and verification across regulated industries.</span></p><br><p style=\"line-height:1.3800000000000001;margin-right:-1.7433070866141178pt;text-align:justify;margin-top:0pt;margin-bottom:0pt;\"><span style=\"font-size:10pt;font-family:Arial, sans-serif;color:#000000;background-color:transparent;font-weight:400;font-style:normal;text-decoration:none;\">We are looking for an SDET to join a small, high impact team. You will shape quality from the ground up across everything we ship: the Veridian Wallet, enterprise credential management applications, cloud based backend services and open source protocol libraries. Our stack builds on the open protocols KERI and ACDC using components such as KERIA (Python), Signify-TS and Signify-Java.</span></p><br><p style=\"line-height:1.3800000000000001;margin-right:-1.7433070866141178pt;text-align:justify;margin-top:0pt;margin-bottom:0pt;\"><span style=\"font-size:10pt;font-family:Arial, sans-serif;color:#000000;background-color:transparent;font-weight:400;font-style:normal;text-decoration:none;\">You will wear multiple hats, in a highly complex domain. Some weeks that means writing test automation frameworks. Other weeks it means jumping into CI/CD pipelines, debugging a flaky mobile build, reviewing security sensitive code or helping define acceptance criteria for a feature that did not exist last month. In this role you will:</span></p><br><ul style=\"margin-top:0;margin-bottom:0;\"><li style=\"list-style-type:disc;font-size:10pt;font-family:Arial, sans-serif;color:#000000;background-color:transparent;font-weight:400;font-style:normal;text-decoration:none;\"><p style=\"line-height:1.3800000000000001;margin-right:-1.7433070866141178pt;text-align:justify;margin-top:0pt;margin-bottom:0pt;\"><span style=\"font-size:10pt;font-family:Arial, sans-serif;color:#000000;background-color:transparent;font-weight:400;font-style:normal;text-decoration:none;\">Design and implement end to end, integration and API test automation frameworks.</span></p></li><li style=\"list-style-type:disc;font-size:10pt;font-family:Arial, sans-serif;color:#000000;background-color:transparent;font-weight:400;font-style:normal;text-decoration:none;\"><p style=\"line-height:1.3800000000000001;margin-right:-1.7433070866141178pt;text-align:justify;margin-top:0pt;margin-bottom:0pt;\"><span style=\"font-size:10pt;font-family:Arial, sans-serif;color:#000000;background-color:transparent;font-weight:400;font-style:normal;text-decoration:none;\">Build CI/CD quality gates that catch regressions before they merge.</span></p></li><li style=\"list-style-type:disc;font-size:10pt;font-family:Arial, sans-serif;color:#000000;background-color:transparent;font-weight:400;font-style:normal;text-decoration:none;\"><p style=\"line-height:1.3800000000000001;margin-right:-1.7433070866141178pt;text-align:justify;margin-top:0pt;margin-bottom:0pt;\"><span style=\"font-size:10pt;font-family:Arial, sans-serif;color:#000000;background-color:transparent;font-weight:400;font-style:normal;text-decoration:none;\">Obsess over edge cases: revoked keys, out of order events, race conditions.</span></p></li><li style=\"list-style-type:disc;font-size:10pt;font-family:Arial, sans-serif;color:#000000;background-color:transparent;font-weight:400;font-style:normal;text-decoration:none;\"><p style=\"line-height:1.3800000000000001;margin-right:-1.7433070866141178pt;text-align:justify;margin-top:0pt;margin-bottom:0pt;\"><span style=\"font-size:10pt;font-family:Arial, sans-serif;color:#000000;background-color:transparent;font-weight:400;font-style:normal;text-decoration:none;\">Test across Veridian’s full product stack: wallet, services, libraries. </span></p></li><li style=\"list-style-type:disc;font-size:10pt;font-family:Arial, sans-serif;color:#000000;background-color:transparent;font-weight:400;font-style:normal;text-decoration:none;\"><p style=\"line-height:1.3800000000000001;margin-right:-1.7433070866141178pt;text-align:justify;margin-top:0pt;margin-bottom:0pt;\"><span style=\"font-size:10pt;font-family:Arial, sans-serif;color:#000000;background-color:transparent;font-weight:400;font-style:normal;text-decoration:none;\">Collaborate with frontend and backend engineers to improve testability.</span></p></li><li style=\"list-style-type:disc;font-size:10pt;font-family:Arial, sans-serif;color:#000000;background-color:transparent;font-weight:400;font-style:normal;text-decoration:none;\"><p style=\"line-height:1.3800000000000001;margin-right:-1.7433070866141178pt;text-align:justify;margin-top:0pt;margin-bottom:0pt;\"><span style=\"font-size:10pt;font-family:Arial, sans-serif;color:#000000;background-color:transparent;font-weight:400;font-style:normal;text-decoration:none;\">Own test environments, test data management and reporting.</span></p></li></ul>"
    },
    {
      "name": "Your story:",
      "value": "<ul style=\"margin-top:0;margin-bottom:0;\"><li style=\"list-style-type:disc;font-size:10pt;font-family:Arial, sans-serif;color:#000000;background-color:transparent;font-weight:400;font-style:normal;text-decoration:none;\"><p style=\"line-height:1.3800000000000001;margin-right:-1.7433070866141178pt;text-align:justify;margin-top:0pt;margin-bottom:0pt;\"><span style=\"font-size:10pt;font-family:Arial, sans-serif;color:#000000;background-color:transparent;font-weight:400;font-style:normal;text-decoration:none;\">3+ years in an SDET or test automation role.</span></p></li><li style=\"list-style-type:disc;font-size:10pt;font-family:Arial, sans-serif;color:#000000;background-color:transparent;font-weight:400;font-style:normal;text-decoration:none;\"><p style=\"line-height:1.3800000000000001;margin-right:-1.7433070866141178pt;text-align:justify;margin-top:0pt;margin-bottom:0pt;\"><span style=\"font-size:10pt;font-family:Arial, sans-serif;color:#000000;background-color:transparent;font-weight:400;font-style:normal;text-decoration:none;\">Strong hands-on experience developing production grade automation frameworks in languages like TypeScript and Java.</span></p></li><li style=\"list-style-type:disc;font-size:10pt;font-family:Arial, sans-serif;color:#000000;background-color:transparent;font-weight:400;font-style:normal;text-decoration:none;\"><p style=\"line-height:1.3800000000000001;margin-right:-1.7433070866141178pt;text-align:justify;margin-top:0pt;margin-bottom:0pt;\"><span style=\"font-size:10pt;font-family:Arial, sans-serif;color:#000000;background-color:transparent;font-weight:400;font-style:normal;text-decoration:none;\">Familiar with mobile testing (Appium, Maestro or similar).</span></p></li><li style=\"list-style-type:disc;font-size:10pt;font-family:Arial, sans-serif;color:#000000;background-color:transparent;font-weight:400;font-style:normal;text-decoration:none;\"><p style=\"line-height:1.3800000000000001;margin-right:-1.7433070866141178pt;text-align:justify;margin-top:0pt;margin-bottom:0pt;\"><span style=\"font-size:10pt;font-family:Arial, sans-serif;color:#000000;background-color:transparent;font-weight:400;font-style:normal;text-decoration:none;\">Background in security sensitive systems (key management, cryptographic operations).</span></p></li><li style=\"list-style-type:disc;font-size:10pt;font-family:Arial, sans-serif;color:#000000;background-color:transparent;font-weight:400;font-style:normal;text-decoration:none;\"><p style=\"line-height:1.3800000000000001;margin-right:-1.7433070866141178pt;text-align:justify;margin-top:0pt;margin-bottom:0pt;\"><span style=\"font-size:10pt;font-family:Arial, sans-serif;color:#000000;background-color:transparent;font-weight:400;font-style:normal;text-decoration:none;\">Exposure to fault tolerant domains (out of order messaging, connectivity failures).</span></p></li><li style=\"list-style-type:disc;font-size:10pt;font-family:Arial, sans-serif;color:#000000;background-color:transparent;font-weight:400;font-style:normal;text-decoration:none;\"><p style=\"line-height:1.3800000000000001;margin-right:-1.7433070866141178pt;text-align:justify;margin-top:0pt;margin-bottom:0pt;\"><span style=\"font-size:10pt;font-family:Arial, sans-serif;color:#000000;background-color:transparent;font-weight:400;font-style:normal;text-decoration:none;\">Comfort with CI/CD pipelines (GitHub Actions preferred), containers (Docker) and lifecycle tooling (Git, Jira/Confluence).</span></p></li><li style=\"list-style-type:disc;font-size:10pt;font-family:Arial, sans-serif;color:#000000;background-color:transparent;font-weight:400;font-style:normal;text-decoration:none;\"><p style=\"line-height:1.3800000000000001;margin-right:-1.7433070866141178pt;text-align:justify;margin-top:0pt;margin-bottom:0pt;\"><span style=\"font-size:10pt;font-family:Arial, sans-serif;color:#000000;background-color:transparent;font-weight:400;font-style:normal;text-decoration:none;\">Self motivated, independent and thorough in finding what others miss.</span></p></li></ul>"
    },
    {
      "name": "Your impact:",
      "value": "<ul style=\"margin-top:0;margin-bottom:0;\"><li style=\"list-style-type:disc;font-size:10pt;font-family:Arial, sans-serif;color:#000000;background-color:transparent;font-weight:400;font-style:normal;text-decoration:none;\"><p style=\"line-height:1.3800000000000001;margin-right:-1.7433070866141178pt;text-align:justify;margin-top:0pt;margin-bottom:0pt;\"><span style=\"font-size:10pt;font-family:Arial, sans-serif;color:#000000;background-color:transparent;font-weight:400;font-style:normal;text-decoration:none;\">Ensure the reliability and security of identity systems used by governments and enterprises.</span></p></li><li style=\"list-style-type:disc;font-size:10pt;font-family:Arial, sans-serif;color:#000000;background-color:transparent;font-weight:400;font-style:normal;text-decoration:none;\"><p style=\"line-height:1.3800000000000001;margin-right:-1.7433070866141178pt;text-align:justify;margin-top:0pt;margin-bottom:0pt;\"><span style=\"font-size:10pt;font-family:Arial, sans-serif;color:#000000;background-color:transparent;font-weight:400;font-style:normal;text-decoration:none;\">Build lean, automated pipelines that let a small team ship fast without compromising quality.</span></p></li><li style=\"list-style-type:disc;font-size:10pt;font-family:Arial, sans-serif;color:#000000;background-color:transparent;font-weight:400;font-style:normal;text-decoration:none;\"><p style=\"line-height:1.3800000000000001;margin-right:-1.7433070866141178pt;text-align:justify;margin-top:0pt;margin-bottom:0pt;\"><span style=\"font-size:10pt;font-family:Arial, sans-serif;color:#000000;background-color:transparent;font-weight:400;font-style:normal;text-decoration:none;\">Define quality standards that become the team's standards.</span></p></li></ul>"
    },
    {
      "name": "Nice to have:",
      "value": "<ul style=\"margin-top:0;margin-bottom:0;\"><li style=\"list-style-type:disc;font-size:10pt;font-family:Arial, sans-serif;color:#000000;background-color:transparent;font-weight:400;font-style:normal;text-decoration:none;\"><p style=\"line-height:1.3800000000000001;margin-right:-1.7433070866141178pt;text-align:justify;margin-top:0pt;margin-bottom:0pt;\"><span style=\"font-size:10pt;font-family:Arial, sans-serif;color:#000000;background-color:transparent;font-weight:400;font-style:normal;text-decoration:none;\">Fluency with AI tools to write tests more efficiently, generate edge cases and expand coverage.</span></p></li><li style=\"list-style-type:disc;font-size:10pt;font-family:Arial, sans-serif;color:#000000;background-color:transparent;font-weight:400;font-style:normal;text-decoration:none;\"><p style=\"line-height:1.3800000000000001;margin-right:-1.7433070866141178pt;text-align:justify;margin-top:0pt;margin-bottom:0pt;\"><span style=\"font-size:10pt;font-family:Arial, sans-serif;color:#000000;background-color:transparent;font-weight:400;font-style:normal;text-decoration:none;\">Industry experience in cryptography and key management.</span></p></li><li style=\"list-style-type:disc;font-size:10pt;font-family:Arial, sans-serif;color:#000000;background-color:transparent;font-weight:400;font-style:normal;text-decoration:none;\"><p style=\"line-height:1.3800000000000001;margin-right:-1.7433070866141178pt;text-align:justify;margin-top:0pt;margin-bottom:0pt;\"><span style=\"font-size:10pt;font-family:Arial, sans-serif;color:#000000;background-color:transparent;font-weight:400;font-style:normal;text-decoration:none;\">Familiarity with decentralized identity protocols and systems.</span></p></li><li style=\"list-style-type:disc;font-size:10pt;font-family:Arial, sans-serif;color:#000000;background-color:transparent;font-weight:400;font-style:normal;text-decoration:none;\"><p style=\"line-height:1.3800000000000001;margin-right:-1.7433070866141178pt;text-align:justify;margin-top:0pt;margin-bottom:0pt;\"><span style=\"font-size:10pt;font-family:Arial, sans-serif;color:#000000;background-color:transparent;font-weight:400;font-style:normal;text-decoration:none;\">Performance and load testing experience.</span></p></li><li style=\"list-style-type:disc;font-size:10pt;font-family:Arial, sans-serif;color:#000000;background-color:transparent;font-weight:400;font-style:normal;text-decoration:none;\"><p style=\"line-height:1.3800000000000001;margin-right:-1.7433070866141178pt;text-align:justify;margin-top:0pt;margin-bottom:0pt;\"><span style=\"font-size:10pt;font-family:Arial, sans-serif;color:#000000;background-color:transparent;font-weight:400;font-style:normal;text-decoration:none;\">Experience in a startup environment where speed, ownership and adaptability matter more than process.</span></p></li></ul>"
    }
  ],
  "occupationCategory": "engineering",
  "recruitingCategory": "TA Team"
}

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