New

Lead API Developer

TEKsystems
$55.00 - $70.00 / hr
life insurance, sick time, 401(k), retirement plan
United States, Illinois, Chicago
Dec 21, 2025
We're seeking a Lead Engineer to support and improve our Fastify APIs. You'll focus on monitoring, troubleshooting, fixing production issues, and building runbooks/playbooks. You'll also mentor teammates, participate in on-call rotations, and help shape operational standards as we move to a microservices architecture. Responsibilities: * Monitor and maintain API reliability, performance, and uptime * Troubleshoot and resolve production issues quickly * Develop and update runbooks/playbooks for incident response * Implement and improve monitoring and alerting systems * Mentor and onboard new team members * Collaborate with engineering and data teams to align development and operations * Participate in on-call rotations and post-incident reviews * Lead the design and implementation of backend systems and APIs. * Drive architectural decisions and partner with the business for strategic decisions. Qualifications: * Experience supporting Fastify APIs in production * Strong skills in monitoring, alerting, and incident response * Familiarity with observability tools * Leadership or mentoring experience * Experience with microservices and cloud environments is a plus * Ability to work 100% Remote Technical Experience: Proficiency in languages such as Java, Python, Ruby, PHP, or Node.js. Experience with SQL and NoSQL databases (e.g., MySQL, MongoDB). Familiarity with version control systems like Git. Basic knowledge of HTML, CSS, and JavaScript. Job Type & LocationThis is a Contract to Hire position based out of Chicago, IL. Pay and BenefitsThe pay range for this position is $55.00 - $70.00/hr. Eligibility requirements apply to some benefits and may depend on your job classification and length of employment. Benefits are subject to change and may be subject to specific elections, plan, or program terms. If eligible, the benefits available for this temporary role may include the following: * Medical, dental & vision * Critical Illness, Accident, and Hospital * 401(k) Retirement Plan - Pre-tax and Roth post-tax contributions available * Life Insurance (Voluntary Life & AD&D for the employee and dependents) * Short and long-term disability * Health Spending Account (HSA) * Transportation benefits * Employee Assistance Program * Time Off/Leave (PTO, Vacation or Sick Leave) Workplace TypeThis is a fully remote position. Application DeadlineThis position is anticipated to close on Dec 31, 2025. h4>About TEKsystems: We're partners in transformation. We help clients activate ideas and solutions to take advantage of a new world of opportunity. We are a team of 80,000 strong, working with over 6,000 clients, including 80% of the Fortune 500, across North America, Europe and Asia. As an industry leader in Full-Stack Technology Services, Talent Services, and real-world application, we work with progressive leaders to drive change. That's the power of true partnership. TEKsystems is an Allegis Group company. The company is an equal opportunity employer and will consider all applications without regards to race, sex, age, color, religion, national origin, veteran status, disability, sexual orientation, gender identity, genetic information or any characteristic protected by law. About TEKsystems and TEKsystems Global Services We're a leading provider of business and technology services. We accelerate business transformation for our customers. Our expertise in strategy, design, execution and operations unlocks business value through a range of solutions. We're a team of 80,000 strong, working with over 6,000 customers, including 80% of the Fortune 500 across North America, Europe and Asia, who partner with us for our scale, full-stack capabilities and speed. We're strategic thinkers, hands-on collaborators, helping customers capitalize on change and master the momentum of technology. We're building tomorrow by delivering business outcomes and making positive impacts in our global communities. TEKsystems and TEKsystems Global Services are Allegis Group companies. Learn more at TEKsystems.com. The company is an equal opportunity employer and will consider all applications without regard to race, sex, age, color, religion, national origin, veteran status, disability, sexual orientation, gender identity, genetic information or any characteristic protected by law.