$110K - $135K/yr
Requirements * 5+ years of backend engineering experience, particularly in API-driven and ... This processing is based on legitimate interest and pre-contractual measures under applicable data ...
$110K - $135K/yr
Requirements * 5+ years of backend engineering experience, particularly in API-driven and ... This processing is based on legitimate interest and pre-contractual measures under applicable data ...
$94K - $124K/yr
NET, C#, and REST APIs , including backend service development and API integration. * Practical ... This processing is based on legitimate interest and pre-contractual measures under applicable data ...
New
$94K - $124K/yr
NET, C#, and REST APIs , including backend service development and API integration. * Practical ... This processing is based on legitimate interest and pre-contractual measures under applicable data ...
New
You'll work closely with SDK engineers and other technical stakeholders to create robust API ... This processing is based on legitimate interest and pre-contractual measures under applicable data ...
New
You'll work closely with SDK engineers and other technical stakeholders to create robust API ... This processing is based on legitimate interest and pre-contractual measures under applicable data ...
New
Data Science Analyst
Saint Louis, MO · On-site
$133K - $180K/yr
... (UI), API, Postgres and Elasticsearch database applications. * Support Systems Engineers and ... Rather, salary will be set based on experience, geographic location and possibly contractual ...
Data Science Analyst
Saint Louis, MO · On-site
$133K - $180K/yr
... (UI), API, Postgres and Elasticsearch database applications. * Support Systems Engineers and ... Rather, salary will be set based on experience, geographic location and possibly contractual ...
Project Manager - Pump Repair
California, MO · On-site
$120 - $180/hr
Contractual & Financial Rigor: Conduct thorough contract documentation reviews to ensure execution ... engineered products, including rotating pumps, fluid systems, and custom API pump standards ...
New
Project Manager - Pump Repair
California, MO · On-site
$120 - $180/hr
Contractual & Financial Rigor: Conduct thorough contract documentation reviews to ensure execution ... engineered products, including rotating pumps, fluid systems, and custom API pump standards ...
New
Senior Quality Manager - Primoris Energy Services
Louisiana, MO · On-site
$120 - $180/hr
... contractual requirements. * Identify, investigate, and resolve non-conformances, root causes, and ... Collaborate with project management, engineering, and construction teams to integrate quality ...
Senior Quality Manager - Primoris Energy Services
Louisiana, MO · On-site
$120 - $180/hr
... contractual requirements. * Identify, investigate, and resolve non-conformances, root causes, and ... Collaborate with project management, engineering, and construction teams to integrate quality ...
Contractual Api Developer information
What is a contractual API developer?
Contractual API Developers are professionals hired on a contract basis to design, build, and maintain Application Programming Interfaces (APIs) for organizations. They typically work for a specified period or project, rather than as full-time employees. These developers ensure that APIs function correctly, are secure, and meet business requirements, enabling different software systems to communicate efficiently. Contractual API Developers are often brought in for specialized expertise or to handle increased workloads during specific projects.
What are the key skills and qualifications needed to thrive as a contractual API developer?
To thrive as a Contractual API Developer, you need strong programming skills in languages such as JavaScript, Python, or Java, along with a solid understanding of API design principles and RESTful architecture. Familiarity with API management tools, documentation platforms like Swagger/OpenAPI, and version control systems such as Git is typically required. Excellent problem-solving, communication, and time management skills help you collaborate with clients and deliver solutions efficiently on project-based timelines. These skills ensure you can build secure, scalable APIs and meet diverse client requirements within contractual constraints.
What are some common challenges faced by contractual API developers, and how can they be managed effectively?
Contractual API developers often face challenges such as quickly adapting to unfamiliar codebases, aligning with the client's existing development standards, and ensuring smooth communication with in-house teams. Managing these challenges requires strong documentation practices, proactive communication, and a clear understanding of project requirements before development begins. Staying organized and setting regular check-ins with stakeholders can help address issues early and keep the project on track.
What are the most commonly searched types of Api Developer jobs in Missouri?
The most popular types of Api Developer jobs in Missouri are:
What are popular job titles related to Contractual Api Developer jobs in Missouri?
For Contractual Api Developer jobs in Missouri, the most frequently searched job titles are:
What job categories do people searching Contractual Api Developer jobs in Missouri look for?
The top searched job categories for Contractual Api Developer jobs in Missouri are:
What cities in Missouri are hiring for Contractual Api Developer jobs?
Cities in Missouri with the most Contractual Api Developer job openings:
$110K - $135K/yr
Full-time
Medical
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 Senior Ruby Developer (Ruby & Go) based in Netherlands.
This is a senior backend engineering opportunity focused on building and scaling secure, reliable payment infrastructure for a global fintech environment. You will take ownership of the backend powering payment portals and integrations with payment service providers. The role combines Ruby on Rails expertise with Go development for high-throughput and latency-sensitive services. You will design end-to-end deposit and withdrawal flows while ensuring robust transaction processing, reconciliation, and failure handling. Security and reliability are central, with a strong focus on financial data protection and compliance. You will also contribute to technical direction, mentor engineers, and help evolve a high-performing international engineering environment.
Accountabilities
- Design, build, maintain, and own backend services using Ruby on Rails and Go, with a focus on scalability, reliability, and maintainability.
- Lead the integration of new payment service providers and payment methods, including cards, bank transfers, cryptocurrency, and local payment solutions.
- Build and maintain end-to-end deposit and withdrawal workflows, ensuring secure and consistent movement of funds across the platform.
- Design, implement, and consume PSP APIs, webhooks, callbacks, and other integration mechanisms.
- Develop transaction routing, status tracking, reconciliation, and payment lifecycle logic.
- Implement robust handling for payment states, retries, idempotency, failures, and edge cases to ensure resilient transaction processing.
- Maintain strong security controls for payment information and support compliance requirements, including PCI DSS.
- Monitor existing payment provider integrations, troubleshoot issues, and proactively improve reliability and performance.
- Develop reporting, logging, and observability capabilities that support payment operations and technical troubleshooting.
- Support the integration of anti-fraud, AML, and KYC controls into payment workflows.
- Provide technical leadership through architecture discussions, code reviews, technical decision-making, and mentorship of other engineers.
- 5+ years of backend engineering experience, particularly in API-driven and integration-heavy environments.
- Strong professional experience with Ruby and Ruby on Rails, with production-level experience in Go strongly preferred.
- Proven experience integrating payment service providers, payment gateways, or comparable financial APIs.
- Strong understanding of payment flows, webhooks, callbacks, transaction lifecycles, and payment states.
- Knowledge of PCI DSS and secure handling of sensitive financial and payment data.
- Hands-on experience with reconciliation, idempotency, retries, error handling, and other patterns required for reliable financial transactions.
- Experience designing, developing, and scaling distributed backend systems.
- Previous experience in fintech, payments, Forex, CFD brokerage, or related financial technology environments is preferred.
- Strong understanding of backend reliability, security, observability, and performance considerations.
- Excellent attention to detail, with a strong focus on building secure and dependable financial systems.
- Ability to communicate technical decisions clearly and contribute effectively to an international, collaborative engineering team.
- Fully remote position.
- Monday-Friday schedule, from 9:00 to 18:00.
- Visa sponsorship.
- Medical insurance starting from the first week.
- Career growth opportunities within a fast-scaling fintech environment.
- Opportunities to participate in international events, meetups, and business trips to global offices.
- Exposure to international payment technologies, financial products, and high-scale backend systems.
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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