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Lead, Systems Administrator
L3Harris Technologies
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Systems Engineer 4
Ultra Electronics Advanced Tactical Systems, Inc.
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Added 5 mins ago
Site Reliability Engineer, Strategic Defense
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Senior Electrical & Controls Engineer
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…for qualified candidates for an Senior Electrical & Controls Engineer. The job location is at the Naval Surface Warfare Center, Indian Head…
Added 7 mins ago
Electric Drive System Design Engineer
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The Electric Drive System (EDS) Design Engineer is responsible for the EDS’ overall Design and its components (e.g., Gearbox, Electric Machines, Power Inverter Module, etc.), Manufacturing,…
Added 7 mins ago
Torque Management Controls Engineer
Stellantis
Auburn Hills, MI
The Electrified Powertrain Controls Engineer will contribute to the development and delivery of electrified powertrain control systems within the CoE of PRC Electrified Propulsion Controls.
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Electronic Warfare Engineer
SRC, Inc
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Conduct original EW all-source intelligence research and engineering analysis to characterize system performance and capabilities
Added 9 mins ago
Electronic Warfare Engineer
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Conduct original EW all-source intelligence research and engineering analysis to characterize system performance and capabilities
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Embedded Environmental Validation Engineer
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- $37 to $47 USD / hour
…solutions using cutting edge technology. The Test & Validation engineer will be responsible for Product Validation activities from RFQ phase to final customer…
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Kelly Services
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- $140,000 USD / year
Our client is seeking an experienced Quality Engineer with a background in electrical power distribution equipment manufacturing, including switchgear, switchboards, or related electrical…
Added 12 mins ago
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Systems Engineer - Sentinel
Auria (Boecore LLC)
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Added 12 mins ago
Senior Engineer, QA Design - Arthroscopy (Lower Extremeties)
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…in orthopedics. Arthrex is actively searching for a Senior Engineer, Design Quality, Lower Extremities for our global headquarters in Naples, FL. The Senior Engineer QA Design is…
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Systems Test Engineer / Robotics Operator - Graduates Considered
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DevOps Engineer - Kansas City, MO
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Onspring is seeking a skilled and motivated DevOps Engineer (or Architect) to help scale and support the infrastructure powering our SaaS platform. In this role, you'll work closely with…
Added 14 mins ago
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Senior Operating Engineer
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Columbus, OH
- $36.06 to $40.85 USD / hour
The Operating Engineer focuses on operating, maintaining, troubleshooting, and repairing all facility systems equipment. This role requires specialized expertise in Electrical, HVAC,…
Added 15 mins ago
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MES Engineer IT Systems
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The MES Product Owner for Breyanzi is accountable for the end-to-end Manufacturing Execution System (MES) solution supporting the Breyanzi (CAR T cell therapy) manufacturing process at BMS,…
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Entry-level Engineer, Structural Engineering
Simpson Gumpertz & Heger
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…offering services in structures, building enclosures, advanced analysis, performance & code consulting, and applied science & research. We are committed to building long-term client…
Added 17 mins ago
Principal Supplier Quality Engineer, Leo Quality
Amazon
Bellevue, WA
…customers and communities around the world, and we’ve designed the system with the capacity, flexibility, and performance to serve a wide range of customers, from individual households to…
Added 17 mins ago
RF System Engineer, Amazon Leo
Amazon
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As a Sr. RF Systems Analysis and Design Engineer, you will own end-to-end modeling and performance analysis of complex satellite links and RF sub-system design, spanning modem, RF…
Added 17 mins ago
Hardware Development Engineer, Power (Starlink)
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Define and perform electrical power system verification testing and analysis
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Sr Avionics Lab Engineer, EE Avionics PCBA Rework
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The Role: The Sr Avionics Lab Engineer role will be part of the electrical engineering hardware development team designing Amazon Leo's satellite electronic sub-systems. Successful…
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PCB Designer - Xpedition
Actalent
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- $60 to $80 USD / hour
This role is for a sr PCB Design Engineer supporting a satellite constellation program. You will define and implement multiple spacecraft subsystems and contribute to all phases of system…
Added 17 mins ago
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Remote PCB Designer - Xpedition
Actalent
Redmond, WA
- $60 to $80 USD / hour
This role is for a senior PCB Design Engineer supporting a satellite constellation program. You will define and implement multiple spacecraft subsystems and contribute to all phases of…
Added 17 mins ago
Software Engineer, Core OS Capabilities
Meta
Redmond, WA
Experience with software diagnostics and analysis tools for system-level debugging

Amazon

Sr.Software Dev Engineer, DDB Index and Search

Seattle, WA, United States

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Job details

Posting language: English
Posted: Oct 30, 2026

Original job description

Description

Senior Software Development Engineer, DynamoDB Search and Indexing

Amazon DynamoDB is looking for a Senior Software Development Engineer to help build two new initiatives: native vector, full-text, and hybrid search; and Krupa, which aims to provide strongly consistent global secondary indexes (GSIs). These initiatives expand how customers access operational data - from finding semantically relevant results to querying current data through alternate keys.

You will work on problems at the intersection of database internals, distributed systems, information retrieval, and consistency protocols. This role offers the opportunity to shape foundational architecture, write performance-critical software, and lead engineering work across multiple DynamoDB components.

Search introduces a new set of indexing and retrieval challenges. How do you organize high-dimensional vectors across a partitioned dataset? Combine approximate nearest-neighbor retrieval with selective attribute filters? Rank results that mix semantic similarity and keyword relevance? You will help build the infrastructure behind these capabilities, including vector and inverted indexes, distributed query execution, and hybrid ranking. Your designs will balance recall, relevance, latency, freshness, and cost while the underlying data changes continuously.

Krupa addresses a different foundational problem: strongly consistent access through GSIs. Asynchronous index propagation creates a gap between a successful table write and its visibility in an index. Closing that gap requires reasoning about updates across independently partitioned table and index data, concurrent operations, transaction interactions, and partial failures. You will help design and implement the mechanisms that preserve these guarantees through retries, recovery, and changes in partition ownership.

Across these initiatives, the engineering challenge extends through the entire index lifecycle. Indexes must be built over existing data while writes continue, maintained as workloads evolve, and recovered when machines fail. You will work closely with engineers across storage, replication, transactions, routing, and the control plane to make these capabilities correct, performant, and operable.

As an SDE III, you will own significant technical decisions and carry them through implementation, validation, launch, and production operation. You will lead designs spanning component boundaries, identify risks early, and create interfaces and implementation plans that enable other engineers to deliver independently. This is an opportunity to combine deep systems engineering with technical leadership on new DynamoDB capabilities.

Key job responsibilities

Own architecture and implementation. Lead substantial work across search and indexing, translating ambiguous requirements into precise designs, working software, and measurable customer outcomes.
Build vector and text retrieval infrastructure. Develop vector indexing, approximate nearest-neighbor search, inverted indexes, text analysis, and relevance scoring.
Deliver distributed search execution.Design partition selection, query fan-out, filter execution, candidate retrieval, top-k merging, and hybrid ranking using techniques such as rank fusion or reranking.
Develop strongly consistent indexing mechanisms. Design and implement coordination between table mutations and index visibility, including concurrent updates, index-key changes, retries, and failure recovery.
Build the index lifecycle. Deliver online creation, backfill, incremental maintenance, compaction, rebalancing, and deletion while customer traffic continues.
Make guarantees testable. Define correctness invariants and search-quality criteria; build concurrency tests, failure-injection scenarios, and benchmarks that expose architectural weaknesses.
Optimize the complete system. Investigate CPU, memory, storage, and network bottlenecks; quantify tradeoffs among retrieval quality, coordination overhead, write amplification, throughput, and tail latency.
Lead across teams. Resolve design questions with partner teams, define clear contracts, and drive changes that span storage, replication, transactions, and query processing.
Raise engineering capability. Mentor engineers, lead design and code reviews, and break complex work into independently deliverable pieces with clear testing and rollout plans.
Own production outcomes. Build diagnostics and recovery mechanisms, participate in operations, and use production evidence to improve architecture and reliability.

Basic Qualifications

5+ years of non-internship professional software development experience
5+ years of programming with at least one software programming language experience
5+ years of leading design or architecture (design patterns, reliability and scaling) of new and existing systems experience
Experience as a mentor, tech lead or leading an engineering team
5+ years of non-internship professional software development experience, or Bachelor's degree in computer science or equivalent
5+ years of programming with at least one software programming language experience, or Bachelor's degree or foreign equivalent in computer science or equivalent
Experience leading the design or architecture of distributed systems, databases, search infrastructure, storage engines, or comparable data platforms.
Strong understanding of algorithms, data structures, concurrency, and system performance.
Experience leading technical work across multiple engineers or teams and mentoring other engineers.
Experience taking complex systems through implementation, testing, deployment, and production operation.

Preferred Qualifications

5+ years of full software development life cycle, including coding standards, code reviews, source control management, build processes, testing, and operations experience
Bachelor's degree in computer science or equivalent

•

Depth in one or more of the following areas:
Vector search, approximate nearest-neighbor algorithms, full-text retrieval, or hybrid ranking.
Secondary indexes, distributed transactions, replication, concurrency control, or consistency protocols.
Storage engines, including logging, LSM trees, compaction, caching, snapshots, and recovery.
Knowledge of vector-indexing approaches such as HNSW, IVF, clustering, or product quantization.
Knowledge of inverted indexes, BM25, query planning, filtering, or distributed top-k retrieval.
Experience with online backfills, partition splits, rebalancing, or recovery under concurrent writes.
Experience with formal modeling, deterministic simulation, fault injection, or performance and retrieval-quality benchmarking.
Experience developing systems software in Java, Rust, C++, or a comparable language.

Amazon is an equal opportunity employer and does not discriminate on the basis of protected veteran status, disability, or other legally protected status.

Our inclusive culture empowers Amazonians to deliver the best results for our customers. If you have a disability and need a workplace accommodation or adjustment during the application and hiring process, including support for the interview or onboarding process, please visit https://amazon.jobs/content/en/how-we-hire/accommodations for more information. If the country/region you’re applying in isn’t listed, please contact your Recruiting Partner.

The base salary range for this position is listed below. Your Amazon package will include sign-on payments and restricted stock units (RSUs). Final compensation will be determined based on factors including experience, qualifications, and location. Amazon also offers comprehensive benefits including health insurance (medical, dental, vision, prescription, Basic Life & AD&D insurance and option for Supplemental life plans, EAP, Mental Health Support, Medical Advice Line, Flexible Spending Accounts, Adoption and Surrogacy Reimbursement coverage), 401(k) matching, paid time off, and parental leave. Learn more about our benefits at https://amazon.jobs/en/benefits .

USA, WA, Seattle - 168,100.00 - 227,400.00 USD annually

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