SQL Developer
This is the employer's own posting, not a copy on a job board.
What we know
Is it still open?
Confirmed still open
Last checked 1d ago — checked against the employer's own applicant tracking system, which is the company answering directly.
We re-read the employer's own applicant tracking system and the posting was still there. That is the company answering directly.
How old is it?
Posted 4d ago
The date the source published, not the day we noticed it (2026-10-06). Last seen at its source just now.
We have tracked this listing since 6 Oct 2026 (4 days). The employer's own board has carried it every time we have read it, most recently just now.
Is it remote?
The listing says yes
The location field doesn't say remote, so our assessment is based on the title or the description. Read the listing before applying.
Who may apply?
United Kingdom
The description agrees: it names United Kingdom.
What the ad says
…Location: This is a remote position for United Kingdom residents only…
Pay not stated
Similar roles pay £70.6k–127.4k/yr
Middle 50% of 64 listings that do state pay — Engineering · all levels · United Kingdom · GBP/year. This employer has published no salary; this is what comparable listings we hold disclose, never converted between currencies or periods. How this is calculated.
Skills named in the ad
Recognised terms only, from a fixed vocabulary — this is what CV matching compares against.
Carried by 1 source
-
Greenhouse employer's own board first seen 4d ago · last seen just now
The listing
Applicants must be authorized to work for any employer in the country in which the role is being hired. We are unable to sponsor or take over sponsorship of an employment visa at this time.
Mark43’s mission is to empower communities and their governments with new technologies that improve safety and quality of life for all. We build powerful, scalable, and elegant software that sets a new standard for the tools on which first responders rely. Our users are diverse, and we are committed to embracing diversity of thought and experience within our team.
Due to the nature of our customers, this role requires NPPV3 (Non-Police Personnel Vetting Level 3) + SC clearance. Mark43 will sponsor and support the vetting process for successful candidates.
We’re looking for a Data Migration Engineer (ETL Developer) to join our team. You’ll be at the heart of the customer transition experience, designing and executing complex data migrations that enable agencies to adopt Mark43’s systems with confidence. You’ll work across internal teams and with external partners to help deliver clean, meaningful, and high-quality data into Mark43 products.
This role is a great fit for someone who thrives on solving complex puzzles, is energized by working with public safety data, and enjoys balancing technical depth with customer-facing collaboration.
What you can expect to work on:
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If you were part of our team last week, you would have:
- Designed and executed a SQL-based ETL process to migrate decades of public safety data from a legacy system into the Mark43 platform
- Collaborated with our data migration contractors, reviewing technical deliverables and providing guidance to help them succeed
- Met with a customer’s records management team to understand their legacy data structure and translate it to the Mark43 schema
- Dug into a uniquely formatted source database to uncover edge cases and ensure data fidelity
- Worked alongside Mark43 deployment, engineering, and product teams to iterate on and improve our migration tooling and process
- Balanced project timelines and quality standards while maintaining strong relationships with both internal and external stakeholders
What we expect from you:
We’re looking for a data migration engineer with 2+ years of experience in ETL development or SQL-based data engineering roles. You should have a comprehensive understanding of data migration processes and be comfortable owning projects from discovery through delivery. Your attention to detail and ability to navigate ambiguity will be key to success.
People who thrive on our team also tend to share the following traits:
- Curious and resourceful. You enjoy figuring out how systems work and how to make them work better.
- Clear and collaborative. You communicate technical details to non-technical stakeholders and work well across teams.
- Committed to quality. You take pride in your work and sweat the details.
Qualifications:
- 2+ years of experience in a data migration, ETL development, or SQL development role
- Deep understanding of SQL and relational database design
- Demonstrated experience writing complex SQL scripts
- Ability to analyze and translate legacy data models into new schemas
- Experience managing contractor deliverables is a plus
- Interest in public safety data and the impact of high-quality migrations on customer success
- Prior work with public safety or government systems is a bonus
What you can expect from us:
- Constant collaboration with numerous Mark43 teams, including Global Services, Engineering, and Product
- Building mission critical and socially responsible software to enable first responders to better serve their communities
- A team that respects and embraces your ideas and expertise
- Coworkers that are motivated by pursuing excellence, rather than the prospect of personal gain
- A workplace dedicated to supporting and bettering public safety and government agencies
Location:
This is a remote position for United Kingdom residents only.
Mark43 is approved to hire in Canada, the UK, and 36 U.S. states, including Alabama, Arizona, California (excluding San Francisco), Colorado, Connecticut, Washington D.C., Florida, Georgia, Iowa, Idaho, Illinois, Indiana, Kansas, Massachusetts, Maryland, Maine, Michigan, Minnesota, Missouri, North Carolina, Nebraska, New Hampshire, New Jersey, New Mexico, New York, Ohio, Oklahoma, Oregon, Pennsylvania, South Carolina, Tennessee, Texas, Utah, Virginia, Vermont, Washington, Wisconsin, and West Virginia. Before applying to a remote role, please ensure that you are able to perform the position in one of the states listed above. State locations and specifics are subject to change as our hiring requirements shift.
Our Privacy Notice describes how Mark43 uses and protects the personal information of prospective employees during the recruitment process. It informs you about our handling of the personal information you provide to us when you apply for a position in our organization and in general when you express your interest in joining our team.
As a part of Mark43's security measures all employees must: Engage in appropriate use of the company's electronic information resources; Become knowledgeable about and follow relevant security policies and guidelines; Protect the resources under their control, such as passwords, computers, and data that they create, receive, or download; and Promptly report security-related incidents and violations, and responding to official reports of security incidents involving their systems or accounts.
Mark43 is committed to the full inclusion of all qualified individuals. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex disability, age, sexual orientation, gender identity, national origin, veteran status, or genetic information. As part of this commitment, we will ensure that persons with disabilities are provided reasonable accommodations. If reasonable accommodation is needed, please email recruiting@Mark43.com requesting the accommodation.