Junior/Mid Software Engineer

Haystack
St. Louis, Missouri, United StatesFull-timePosted Aug 30, 2026

About the role

We are working with a dynamic startup revolutionizing the geospatial technology sector with cutting-edge solutions in application development, cloud services, and data analytics. This company is committed to pushing the boundaries of innovation and offers an exciting environment where your contributions directly impact mission-critical projects.

The Role

Develop and enhance an existing application, focusing on user experience and responsive features.

Contribute to an application capable of managing tens of thousands of map data points and multiple configurable sources.

Collaborate to bring open-source capabilities to restricted network users.

Participate in the design, development, testing, and integration to achieve critical mission goals.

Take ownership of application features and ensure high-quality delivery.

What You'll Need

1-6 years of software development experience with modern languages like Python, Java, and JavaScript.

Active Top Secret clearance with SCI eligibility.

Familiarity with JavaScript frameworks such as Angular.

Experience in developing and implementing software enhancements for mission systems.

Proficiency in Agile-based software development methodologies.

Ability to work collaboratively and adapt to new technologies.

What's On Offer

Opportunity to work on innovative architectures and advanced applications.

Contribute to shaping the future of geospatial technology.

Be part of an agile and dynamic team environment.

Engage with data modeling, machine learning, and data visualization techniques.

Apply via Haystack today!

Responsibilities

  • Develop and enhance an existing application, focusing on user experience and responsive features
  • Contribute to an application capable of managing tens of thousands of map data points and multiple configurable sources
  • Collaborate to bring open-source capabilities to restricted network users
  • Participate in the design, development, testing, and integration to achieve critical mission goals
  • Take ownership of application features and ensure high-quality delivery

Qualifications

  • 1-6 years of software development experience with modern languages like Python, Java, and JavaScript
  • Active Top Secret clearance with SCI eligibility
  • Familiarity with JavaScript frameworks such as Angular
  • Experience in developing and implementing software enhancements for mission systems
  • Proficiency in Agile-based software development methodologies
  • Ability to work collaboratively and adapt to new technologies

Benefits

  • Opportunity to work on innovative architectures and advanced applications
  • Contribute to shaping the future of geospatial technology
  • Be part of an agile and dynamic team environment
  • Engage with data modeling, machine learning, and data visualization techniques

Skills mentioned

PythonJavaJavaScriptAngularFrontend DevelopmentSoftware TestingPerformance OptimizationCloud ComputingData VisualizationMachine Learning

About Haystack

Haystack combines AI & expert vetting to deliver world-class tech candidates who are engaged, aligned, and ready to interview. We're trusted by over 400,000+ tech candidates, working in Software Engineering, Data, Design, DevOps, Cloud, Tech Management, Testing, Product & Delivery, Architecture and more. 100s of employers from startups and scale-ups like Atom Bank, DuckDuckGo and Goodlord to established enterprises like American Express, Dunelm and AWS use Haystack to connect with qualified tech talent that they can't find anywhere else.

Technology51-200 employeesNewcastle upon Tyne, England