{"id":2843196,"url":"https://alion.io/job/fiserv-senior-mongodb-database-engineer","title":"Senior MongoDB Database Engineer","company":{"id":2459,"name":"Fiserv","domain":"fiserv.com","url":"https://alion.io/company/fiserv","size_band":"5000+","is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":"Workday","truth_index":{"grade":"A","score":92,"open_postings":62,"ghost_share":0.048,"stale_share":0.129,"repost_share":0.145,"time_to_fill_p50_days":23,"computed_at":"2026-10-25T05:49:26Z"}},"role":"Data Science","role_family":"Data Science","seniority":"senior","employment_type":"full_time","work_mode":"on_site","remote_scope":null,"remote_scope_basis":null,"remote_working_hours":null,"hiring_geo_confidence":"structured","locations":["Alpharetta, United States","Omaha, United States","Frisco, United States","Marietta, United States"],"countries":["US"],"hiring_countries":[],"hiring_countries_total":0,"salary":null,"salary_estimate":{"min_usd":89000,"max_usd":168000,"period":"year","method":"role_seniority_country_remote_cell","sample_n":1251},"experience_years_min":6,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"Active Directory","optional":false},{"name":"Azure","optional":false},{"name":"GCP","optional":false},{"name":"Linux","optional":false},{"name":"PowerShell","optional":false},{"name":"Python","optional":false},{"name":"Red Hat","optional":false},{"name":"AWS","optional":true}],"status":"live","first_seen_at":"2026-10-15T00:00:00Z","employer_posted_date":"2026-10-15","last_verified_at":"2026-10-25T08:23:47Z","board_verified":true,"closed_at":null,"days_open":10,"trust":{"level":"ok","repost_count":null,"flags":[],"days_open":10},"description":"Calling all innovators - find your future at Fiserv.\nWe’re Fiserv, a global leader in Fintech and payments, and we move money and information in a way that moves the world. We connect financial institutions, corporations, merchants, and consumers to one another millions of times a day - quickly, reliably, and securely. Any time you swipe your credit card, pay through a mobile app, or withdraw money from the bank, we’re involved. If you want to make an impact on a global scale, come make a difference at Fiserv.\nJob Title\nSenior MongoDB Database EngineerAbout your role:\nAs a Senior MongoDB Database Engineer, you will be responsible for designing, optimizing, and operating high-throughput, low-latency MongoDB platforms supporting mission-critical workloads at enterprise scale. You will bring hands-on experience with multi-terabyte to petabyte-scale clusters and architect resilient, high-performing sharded environments under heavy production load.\nWhat you'll do:\nLead end-to-end MongoDB performance optimization including query tuning, execution plan analysis, and index design\nDesign and implement scalable data models optimized for high read/write throughput and low latency\nArchitect and operate large-scale sharded clusters using range-based and hash-based strategies\nOptimize shard key selection, chunk distribution, and balancing to prevent hotspots and improve performance\nManage cross-shard query efficiency and reduce scatter-gather impact across distributed workloads\nSupport large production environments (hundreds of nodes, multi-region deployments) with a focus on availability and resilience\nImplement and maintain high availability, disaster recovery, and failover strategies across regions\nAutomate database operations, monitoring, and maintenance tasks using Python or shell scripting\nPartner with application teams on data modeling, query design, and performance best practices\nParticipate in 24x7 on call Support\nExperience you'll need to have:\n6+ years of experience as a MongoDB Engineer or DBA in large-scale production environments\n6 + years of experience in MongoDB sharding, replication internals, and distributed architecture design\n2+ years of experience with Python, Powershell, RedHat Linux, Mac OS, IIS, and Active Directory\n2+ years with cloud technologies such as Google Cloud and Azure\nBachelor’s degree in computer science, or a relevant field, or an equivalent combination of education, work, or military experience\nExperience that would be great to have:\nPrior experience in the financial services industry\nExperience with database migration projects\nPrior exposure to microservices architectures, distributed systems, or streaming platforms\nKnowledge of complex technologies, tools, methodologies, the enterprise architecture, and emerging technologies in the industry\nUnderstanding of the relationship between information technology, business practices, consumer markets and industry and be able to apply that knowledge to support the needs of critical systems and projects\nHow you’ll work:\nFiserv emphasizes in-person collaboration to help you grow your career while shaping the future of fintech, this role is on-site Monday through Friday\nThis role requires being on-call during non-standard and/or overnight hours on a rotational basis\nThis role requires flexibility to work overtime that includes weekends and holidays\nThis role requires use of a computer and audio equipment\nTravel:\nApproximately 0-5% travel off-site or to other office locations is expected\n#LI-CD1#MongoDB #MongoDBDBA #DatabaseAdministrator #DBA #NoSQL #DatabaseEngineering #DatabaseManagement #DatabasePerformance #DatabaseSecurity #HighAvailability #DisasterRecovery #Linux #CloudComputing #AWS #Azure #DevOps #SRE #TechJobs #ITJobs #Hiring\nThis role is not eligible to be performed in Colorado, California, District of Columbia, Hawaii, Illinois, Massachusetts, Maryland, Minnesota, New Jersey, New York, Nevada, Rhode Island, Vermont, Virginia, Maine or Washington.\nIt is unlawful to discriminate against a prospective employee due to the individual's status as a veteran.\nPlease note that salary ranges provided for this role on external job boards are salary estimates made by outside parties and may not be accurate.\nThank you for considering employment with Fiserv. Please:\nApply using your legal name\nComplete the step-by-step profile and attach your resume (either is acceptable, both are preferable).\nOur commitment to Equal Opportunity:\nFiserv is proud to be an Equal Opportunity Employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, national origin, gender, gender identity, sexual orientation, age, disability, protected veteran status, or any other category protected by law.\nIf you have a disability and require a reasonable accommodation in completing a job application or otherwise participating in the overall hiring process, please contact . Please note our AskHR representatives do not have visibility to your application status. Current associates who require a workplace accommodation should refer to Fiserv’s Disability Accommodation Policy for additional information.\nNote to agencies:\nFiserv does not accept resume submissions from agencies outside of existing agreements. Pleasedo not send resumes to Fiserv associates. Fiserv is not responsible for any fees associated with unsolicited resume submissions.\nWarning about fake job posts:\nPlease be aware of fraudulent job postings that are not affiliated with Fiserv. Fraudulent job postings may be used by cyber criminals to target your personally identifiable information and/or to steal money or financial information. 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