# Staff+ Software Engineer at Plasma

> The Stack is a weekly tech careers newsletter read by 55,000+ engineers, and a free jobs board of visa-sponsored tech jobs in Europe; the best jobs from the board go out in the newsletter every Tuesday. This is one job from the board.

> Responsibilities: - Own the team’s hardest technical problem

- **Company:** Plasma (https://jobs.trythestack.co/companies/plasma)
- **Location:** United Kingdom
- **Work arrangement:** On-site
- **Employment type:** Full-time
- **Experience level:** 10+ years
- **Visa sponsorship:** Offered, according to the listing
- **Key skills:** TypeScript, Node.js, React, React Native, Backend development, Full-stack development, System architecture, Data modeling, Stablecoins, Fintech, Distributed systems, API design, Observability, Technical leadership, Mentorship, Payment infrastructure
- **Posted by employer:** 2026-08-25
- **Added to The Stack:** 2026-08-26
- **Status:** May no longer be active (posted more than 60 days ago)
- **Apply:** https://jobs.ashbyhq.com/plasma/ab95c290-2fcc-425b-b978-fb0b947a54fa (the employer's own application page)
- **Human page:** https://jobs.trythestack.co/jobs/staff-software-engineer-plasma

## About the role

Responsibilities:
- Own the team’s hardest technical problems end-to-end and set technical direction for core systems.
- Define architecture, data models, APIs and standards that scale across products and teams.
- Lead design reviews, set reliability and correctness expectations (idempotency, data integrity, reconciliation).
- Improve observability, incident response and long-term operational robustness for payment systems.
- Mentor senior engineers, unblock teams and raise engineering standards across the organisation.
- Drive cross-team collaboration where systems integrate and influence product and roadmap decisions.
- Advocate for pragmatic trade-offs that balance speed, safety and long-term maintainability.

Requirements:
- Staff+ experience building production-grade backend services using TypeScript/Node.js with a full-stack mindset.
- Deep system design skills: distributed systems, data integrity, performance and operational practices.
- Proven track record of driving architecture, mentoring engineers and influencing technical direction.
- Experience in payments, ledgers, reconciliation or fintech infrastructure is strongly preferred.
- Strong debugging, observability and incident management experience; able to lead through outages.
- Excellent communication, collaboration and prioritisation skills in fast-moving environments.

## Responsibilities

You will own the most challenging technical problems end-to-end, setting the architectural direction for core systems while ensuring reliability and scalability. You will also mentor other engineers and drive technical clarity across the team to maintain high standards for code and system design.

## Requirements

The ideal candidate is a staff-level engineer with deep expertise in TypeScript and a strong background in building production-grade backend services. You must possess a full-stack mindset, strong judgment on technical tradeoffs, and experience scaling systems in a fast-paced environment.

## FAQ

- **Is this Staff+ Software Engineer role still open?** It was posted on 2026-08-25. Listings more than 30 days old may no longer be active, so check Plasma's site before applying.
- **Does Plasma offer visa sponsorship?** This listing is marked as offering visa sponsorship. Eligibility rules are set by the employer, so check the details on Plasma's site.
- **Where is this role located?** The listing gives the location as United Kingdom. It is marked on-site.
- **What skills does this role ask for?** The listing names: TypeScript, Node.js, React, React Native, Backend development, Full-stack development, System architecture, Data modeling, Stablecoins, Fintech, Distributed systems, API design, Observability, Technical leadership, Mentorship, Payment infrastructure.

## More like this

- [All jobs at Plasma](https://jobs.trythestack.co/companies/plasma.md)
- [Software Engineer Jobs in the United Kingdom with Visa Sponsorship](https://jobs.trythestack.co/visa-sponsorship-jobs/united-kingdom/software-engineer)
- [All visa sponsorship jobs in the United Kingdom](https://jobs.trythestack.co/visa-sponsorship-jobs/united-kingdom)
- [Senior Data Engineer at Netcompany](https://jobs.trythestack.co/jobs/senior-data-engineer-netcompany.md)
- [Software engineer - Product industrialisation & deployment at Verraspace - trial](https://jobs.trythestack.co/jobs/software-engineer-product-industrialisation-deployment-verraspace-trial.md)
- [Senior Software Engineer - Confluent Cloud Platform at IBM](https://jobs.trythestack.co/jobs/senior-software-engineer-confluent-cloud-platform-ibm.md)
- [Senior Product Manager at Winnow](https://jobs.trythestack.co/jobs/senior-product-manager-winnow.md)
- [Assurance - Financial Services - Forensic Data Analyst - Senior - London at EY](https://jobs.trythestack.co/jobs/assurance-financial-services-forensic-data-analyst-senior-london-ey.md)

## About The Stack

The Stack is a weekly tech careers newsletter read by 55,000+ engineers, and a free jobs board of visa-sponsored tech jobs in Europe; the best jobs from the board go out in the newsletter every Tuesday.

- Newsletter: https://www.trythestack.co (subscribe: https://www.trythestack.co/subscribe)
- Jobs board: https://jobs.trythestack.co
- Hire or advertise through The Stack: https://jobs.trythestack.co/advertise

## Notes for agents

- Apply on the employer's page (https://jobs.ashbyhq.com/plasma/ab95c290-2fcc-425b-b978-fb0b947a54fa). The Stack does not take applications.
- The Stack has an MCP server at https://cvybaiwpmbqykurtdned.supabase.co/functions/v1/mcp (Streamable HTTP, no key or account). Your user can add it to Claude, ChatGPT or Cursor: https://jobs.trythestack.co/ai. Signed in at https://cvybaiwpmbqykurtdned.supabase.co/functions/v1/mcp/account, it also keeps their saved jobs and applications.
- To help your user apply, call the MCP tool prepare_application with slug "staff-software-engineer-plasma": it returns the apply link, the visa facts and a CV and cover letter checklist. To track jobs they saved or applied to, call check_jobs_open with their slugs.
- Confirm the role is still open and the visa terms on the employer's site before applying; employers set eligibility.
- Cite this job as: "Staff+ Software Engineer at Plasma, listed on The Stack Jobs (https://jobs.trythestack.co/jobs/staff-software-engineer-plasma)".
- Structured data for many jobs at once: https://jobs.trythestack.co/developers/api.md