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Freelance Project Engineer Jobs in Missouri (NOW HIRING)

The role combines hands-on engineering with solution architecture, requiring you to turn complex ... Freelance/project-based working arrangement. * Opportunity to shape the architecture of a new Legal ...

Comfortable working autonomously in a remote environment and taking ownership of projects from ... Available to work full-time or on a freelance basis. Benefits * Fully remote position with ...

  • Medical

  • PTO

You'll collaborate with designers, developers, freelance creatives, agencies, and marketing teams ... Strong project management and coordination skills, with the ability to manage multiple creative ...

$8 - $65/hr

  • Medical

  • PTO

... engineering and evaluation metrics. A bachelor's, master's, or PhD in a science field is ideal; teaching experience, published work, lab or field research, or science communication projects signal ...

$65/hr

  • Medical

  • PTO

... engineering and evaluation metrics. A master's or PhD in mathematics or a closely related quantitative field is ideal; peerreviewed publications, teaching experience, research in pure or applied ...

Jr Digital Production Specialist

Springfield, MO · On-site

  • Medical

  • Dental

  • Vision

  • Retirement

  • PTO

Collaborate with designers, developers, marketers, merchandisers, and business partners to complete ... Support special projects and perform other duties as assigned. EXPERIENCE / QUALIFICATIONS: Minimum ...

Freelance Project Engineer information

What is a freelance project engineer?

Freelance project engineers are independent professionals who manage and oversee engineering projects for various clients on a contract basis, rather than being employed by a single company. Their responsibilities typically include project planning, resource management, technical problem-solving, and ensuring projects are completed on time and within budget. Freelance project engineers work across industries such as construction, manufacturing, IT, and more, adapting to each project's unique requirements. They often collaborate with multidisciplinary teams and may work remotely or on-site, depending on the project's needs.

How do freelance project engineers typically manage communication and collaboration with multiple clients simultaneously?

Freelance project engineers often work with several clients at once, which requires strong organizational and communication skills. They commonly use digital project management tools and regular status updates to keep all stakeholders informed and maintain clear expectations. Establishing well-defined communication protocols at the start of each project helps minimize misunderstandings and ensures projects stay on track. Additionally, freelance project engineers must be proactive in scheduling meetings and addressing client feedback promptly to maintain positive working relationships.

What are the key skills and qualifications needed to thrive as a freelance project engineer, and why are they important?

To thrive as a Freelance Project Engineer, you need a solid background in engineering principles, project management, and typically a relevant engineering degree or certification. Familiarity with project management software (such as MS Project or Asana), CAD tools, and industry-specific standards is essential. Strong organizational skills, proactive communication, and adaptability set exceptional freelancers apart in managing client relationships and project dynamics. These skills ensure the successful delivery of projects on time and within scope, while maintaining client satisfaction and professional credibility.

What is the difference between Freelance Project Engineer vs Contract Project Engineer?

AspectFreelance Project EngineerContract Project Engineer
CredentialsRelevant engineering certifications, project management skillsSame as freelance, often with additional contractual agreements
Work EnvironmentIndependent, project-based, remote or onsiteTypically onsite or client-specific, temporary assignment
Employer/Industry UsageFreelance platforms, consulting firms, direct clientsConstruction, engineering firms, industrial projects
Search/Comparison IntentYesYes

The main difference between a Freelance Project Engineer and a Contract Project Engineer lies in their employment setup. Freelance Project Engineers work independently, often on multiple projects through platforms or direct clients, offering flexibility. Contract Project Engineers are hired on a temporary basis by companies for specific projects, usually through staffing agencies or direct contracts. Both roles require similar skills and certifications, but their work environments and employment arrangements differ.

What are the most commonly searched types of Project Engineer jobs in Missouri?

The most popular types of Project Engineer jobs in Missouri are:

What cities in Missouri are hiring for Freelance Project Engineer jobs?

Cities in Missouri with the most Freelance Project Engineer job openings:

Tech Lead / Solution Architect - Backend, Workflow Engine, SSO, Observability, QA

Jobgether

Remote

Full-time

Posted 9 days ago


Job description

This position is listed on behalf of a partner company, who manages all applications and next steps. Our partner is looking for a Tech Lead / Solution Architect - Backend, Workflow Engine, SSO, Observability, QA based in Netherlands.

This is a senior technical leadership opportunity focused on designing and delivering the backend foundation of a new Legal OS MVP.
You will own architecture decisions across backend services, workflow orchestration, security, observability, and quality engineering.
The role combines hands-on engineering with solution architecture, requiring you to turn complex requirements into reliable, production-ready systems.
You will design resilient workflows with strong guarantees around retries, idempotency, consistency, auditability, and failure recovery.
You will also establish secure SSO and permissions models while building comprehensive observability and automated QA practices.
The environment is highly autonomous, project-based, and focused on delivering a pragmatic MVP with a strong emphasis on reliability and security.
This role is ideal for a senior backend engineer or architect who enjoys owning technical direction and building robust systems from the ground up.

Accountabilities
  • Own backend architecture and technical direction, translating product goals into scalable and maintainable production solutions.
  • Define the architecture boundaries and minimal service contracts, including APIs and event-driven interfaces required for the MVP.
  • Design the core data model, including Matter IDs, mapping rules, and idempotency keys to ensure reliable and consistent processing.
  • Build and define the workflow layer with retry and backoff strategies, dead-letter handling, replay capabilities, deduplication, and resilient failure recovery.
  • Establish security architecture covering SSO, role-based permissions, access controls, and secure secrets management.
  • Implement comprehensive audit trails that clearly capture who performed an action, what occurred, when it happened, and why, supported by correlation IDs and distributed tracing.
  • Design and implement observability practices covering structured logging, metrics, tracing, system health, and operational troubleshooting.
  • Establish robust QA gates covering integration, end-to-end, and regression testing for critical workflows such as document delivery, deadlines, and audit functionality.
  • Collaborate with relevant stakeholders to make pragmatic architectural decisions and ensure solutions are ready for production.
  • Contribute hands-on code and technical implementation while maintaining a strong focus on reliability, security, maintainability, and operational excellence.
Requirements
  • Senior-level experience in backend engineering and solution architecture, with a proven track record of shipping production systems.
  • Strong understanding of distributed systems and failure modes, including retries, idempotency, consistency, race conditions, deduplication, and recovery strategies.
  • Hands-on experience designing and implementing backend services, ideally using Python and frameworks such as FastAPI.
  • Strong knowledge of relational databases, particularly PostgreSQL.
  • Experience with queues and event-driven architectures using technologies such as NATS, RabbitMQ, Kafka, or comparable platforms.
  • Strong understanding of APIs and integrations with external platforms and services.
  • Experience implementing OIDC, SSO, authentication, authorization, roles, permissions, and secrets management.
  • Practical knowledge of observability and monitoring technologies such as OpenTelemetry, Prometheus, ELK, or similar platforms.
  • Strong experience with integration, end-to-end, and regression testing, including integrating automated QA into CI pipelines.
  • Familiarity with Docker and modern software delivery practices.
  • Ability to independently make architecture decisions, define technical contracts, and translate ambiguous requirements into actionable solutions.
  • Strong analytical and problem-solving skills, with a proactive approach to identifying reliability, security, and scalability risks.
  • Excellent communication and collaboration skills, with the ability to explain technical decisions clearly to both technical and non-technical stakeholders.
  • Comfortable working autonomously in a project-based environment and taking ownership from architecture through implementation and delivery.
Benefits
  • 100% remote working arrangement, with a preference for candidates working within European/CET time zones.
  • Full-time or part-time engagement options.
  • Freelance/project-based working arrangement.
  • Opportunity to shape the architecture of a new Legal OS MVP from the ground up.
  • High level of technical ownership and autonomy.
  • Hands-on work across backend engineering, workflow automation, security, observability, and QA.
  • Opportunity to build reliable, security-focused systems designed for real-world legal workflows.
  • Start as soon as possible, with workload and engagement level agreed upon based on project needs.
How Jobgether works:
We use an AI-powered matching process to ensure your application is reviewed quickly, objectively, and fairly against the role's core requirements. Our system identifies the top-fitting candidates, and this shortlist is then shared directly with the hiring company. The final decision and next steps (interviews, assessments) are managed by their internal team.
We appreciate your interest and wish you the best!
 Why Apply Through Jobgether? 
 
Data Privacy Notice: By submitting your application, you acknowledge that Jobgether will process your personal data to evaluate your candidacy and share relevant information with the hiring employer. This processing is based on legitimate interest and pre-contractual measures under applicable data protection laws (including GDPR). You may exercise your rights (access, rectification, erasure, objection) at any time.
 
 
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We may use artificial intelligence (AI) tools to support parts of the hiring process, such as reviewing applications, analyzing resumes, or assessing responses and identifying potential inconsistencies or verification signals in application materials based on available information. These tools assist our recruitment team but do not replace human judgment. Final hiring decisions are ultimately made by humans. If you would like more information about how your data is processed, please contact us.
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