Senior Software Engineer

requirements shift. 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 the safety and quality of life for all. We build powerful, scalable, and elegant software that sets a new standard for the tools upon which our first responders rely. Our users are diverse, and we are therefore committed to embracing diversity of thought and experience within our team. We’re seeking experienced and innovative full stack software engineers who have shipped at enterprise scale and released commercial software to enterprise customers. Come and help build the next generation of cloud based public safety software. As a member of the Mark43 team, you’ll take ownership of products and features from start to finish, and become a knowledge resource that your teammates can trust and rely on. You’ll build robust solutions to our unique problems of scale, security, and reliability. We heavily leverage technologies like Java, React, SQL, Redis, and Elasticsearch and enjoy participating in the open source community. As an engineer here, you'll have the freedom to implement your own solutions and have a meaningful impact on our product. What You’ll Do If you were a part of our team, here are some things you would have done last week: Spent time working with a Product Manager to understand

requirements for a new feature. Building features using popular technologies including but not limited to: Java, React, SQL, Redis, and Elasticsearch; Improve architectural strategy of a front-end or backend area of the product to meet higher velocity needs created by our growing customer base. Reviewed code submitted by other software engineers, and submitted your own code for review as part of our pull-request deployment process Spent time meeting with a Product Designer to explain technical constraints for a specific feature Collaborating with design and product teams to understand and document feature

requirements Written clear, concise technical documentation to accompany your code that your teammates will trust Spent time testing out a new technology or taking part in a discussion on ways to improve our code base and engineering practices Nurturing an engineering culture that cares deeply about the quality of the code we write, while still working quickly to bring our technology to as many departments as possible What You’ll Need We are seeking engineers with at least 8 years of professional experience using Java and React in production. You should be comfortable utilizing agile development and thoroughly testing your own code. Our codebase is large and complex, so we expect you to write clear, concise code and intuitive documentation to help other engineers understand your contributions. Deep understanding of databases, automated testing, Agile methodologies Proficiency building and managing RESTful APIs Deep experience designing and building out infrastructure for complex cloud-based software applications, preferably hosted in AWS or Azure Knowledge of or prior experience with microservices architecture Extensive knowledge of JavaScript and its many frameworks, HTML, CSS, and an interest in testing out new FE technologies Knowledge of web architecture concepts including HTTP and REST People who thrive on our team also tend to share the following characteristics: Humble, open, and curious. You recognize that no one is perfect and you will be wrong, and you’re excited about listening and learning being a big part of your job. Attentive, active listeners. You’re interested in what others have to say and illustrate your interest with your actions. Resilience. You do not shy away from challenging work and you proactively help your team solve problems. Enthusiastic collaborators. You understand that the best outcomes are achieved through shared ownership, and seek to spread knowledge and expand participation rather than restrict it. Comfortable with uncertainty. You know that sometimes problems and situations can’t be simplified or fully understood, and are at ease working within this type of haziness. Passionate about personal growth. You view mistakes as opportunities for learning, and want to grow as a designer, colleague, and person. Eager to help others. You look for ways to provide support for more junior members of

the team and develop cooperative working relationships We feel passionately about equal pay for equal work, and transparency in

compensation is one vehicle to achieve that. Total

compensation for this role is market competitive, including a target base annual salary range of $155,000-$215,00 plus

bonus opportunity, company stock options, and a full

benefits package, including health insurance, paid time off, and a 401k plan. 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 [email protected] requesting the accommodation. Back to Careers Mark43 is the trusted leader in public safety technology, providing a secure, all-in-one platform for agencies to save time, stay compliant, and ensure community safety. Book a Demo Twitter Facebook Youtube Linkedin Instagram Platform Mark43 RMS Mark43 CAD Mark43 Analytics Mark43 Insights Mark43 OnScene Security & Compliance Solutions Law Enforcement Dispatch Federal Campus United Kingdom Resources Learn Support Partners Company Leadership Newsroom Careers Contact Us Trust Center Copyright © 2026 Mark43 Terms and Conditions | Privacy Policy | Cookie Policy | Help Center | Mark43 for Developers

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