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Senior Data Engineer
Senior Backend/Data Engineer designing and maintaining Python-based data pipelines and backend services. The role involves building ETL processes, integrating external systems, and managing cloud infrastructure on AWS and Kubernetes, with a focus on data-intensive systems and AI-assisted development.
Software Engineer (Chantilly)
Builds and maintains secure, mission-critical backend applications and cloud infrastructure in a classified environment, developing automation tools and APIs in Python and deploying AWS infrastructure via the AWS CDK. Requires an active TS/SCI clearance with full-scope polygraph.
#136215 - Senior Backend Software Engineer - Java/Spring Boot
Contract senior backend engineer (through Mar 31, 2027) building correctness-critical billing-account services in Java/Spring Boot 3: event-driven workflows with idempotency and transactional consistency, JPA/Hibernate schema migrations on MySQL/Aurora, GraphQL (Netflix DGS/Apollo), messaging (SQS/Kafka/RabbitMQ), GitLab CI/CD, and Datadog observability.
(Senior) Kotlin / Java Software Engineer - Trading Platform (m/f/x)
Senior backend engineer on Scalable Capital's trading platform team, building and running services across the trading lifecycle (order intake, execution, post-trade) in a distributed, event-driven environment. Core stack: Kotlin/Java with Spring Boot, PostgreSQL/DynamoDB, gRPC, and AWS cloud-native tooling.
Software Engineer, Business Systems & Integrations (Remote)
Business systems engineer at Frank Darling (custom engagement rings) building and operating the internal platform: supplier inventory pipelines, Shopify integrations, pricing logic, and internal tools on AWS, mostly in Python. Heavy emphasis on AI-assisted development (Claude Code/Codex) and working directly with non-technical stakeholders.
Senior Software Engineer - Sales & Retail
Senior Software Engineer on the Item Domain team (pricing, pay, and merchandising tools) at an authenticated luxury resale marketplace, building backend services and internal web tooling for listing, enrichment, and merchandising. Stack spans Java/Kotlin, Elixir, Ruby, React/TypeScript, GraphQL, Kafka, AWS, PostgreSQL, and DynamoDB.
Data Engineer (Trade Surveillance)
Data Engineer on TP ICAP's Surveillance Technology team in Belfast, building and maintaining AWS data pipelines that feed trade and communications surveillance platforms (Scila, Global Relay). Day-to-day involves ETL/ELT pipeline development with Python/Java, SQL, Airflow/dbt/Spark, infrastructure-as-code with Terraform/CDK, plus data quality checks, monitoring, and reconciliation.
DevOps Platform Engineer
Senior DevOps/Platform Engineer (hybrid, 2-3 days onsite in Canary Wharf, London) owning reliability of large-scale platforms in a regulated environment: leading incident management, SLO/SLI-based reliability, IaC and CI/CD automation, observability, and agentic AI-assisted operations on AWS, using Python, Go, Terraform, Ansible and Prometheus/Grafana.
Senior Multi-Tenant .NET Backend & Integration Engineer (Jersey City)
Job Profile: Senior Multi-Tenant .NET Backend & Integration Engineer This is a hands-on backend engineering role for a developer who will build and deploy a multi-tenant SaaS application on AWS. You will write…
Data Engineer, Mapping
Data Engineer on Lyft's Mapping team in Toronto: build and scale data pipelines and services that power route simulation, travel-time estimation, experimentation, and ML models. Core stack includes AWS, Kubernetes, Airflow, Spark, SQL, and geospatial data tooling.
Backend Software Engineer, Product
Backend engineer at Higgsfield (Almaty, on-site) building AI creator tools: AI creation workflows, Cinema Studio collaboration, and community features like sharing, discovery, contests, and follows — owning them from idea to production. Stack: Python/FastAPI, Go, PostgreSQL, Redis, Kafka, and Kubernetes on AWS.
Database Architect
Senior data architect/modeler building scalable data models, a centralized data store, and APIs for NOAA Fisheries' regional offices and science centers. Day-to-day work spans modernizing legacy databases, tuning production schemas, and prototyping cloud solutions across SQL Server, Oracle, NoSQL, Snowflake, and AWS/Azure data services.
Systems Administrator
E-INFOSOL LLC, a cleared government IT contractor in Washington, DC, is hiring a senior Systems Administrator (10+ years, active Top Secret clearance) to act as principal authority for enterprise systems architecture, infrastructure automation with Terraform/Ansible, and zero-trust security across hybrid multi-enclave environments spanning AWS GovCloud, Azure, GCP, Windows, and Linux.
Cloud Engineer
Cloud Engineer (AI Integration) at E-INFOSOL, a government IT contractor: designs secure, scalable multi-enclave cloud environments for AI/ML training and inference using AWS/Azure/GCP, IaC, Kubernetes, and on-prem hyperconverged (Nutanix) infrastructure. Requires 8+ years experience, active Top-Secret clearance (SCI/CI Poly capable), on-site in Washington, DC.
AWS Cloud Architect
Senior cloud architect role at Transaction Network Services (TNS), a payments company: design and govern multi-region AWS and hybrid on-premises/cloud environments, lead legacy workload migrations to cloud-native, and enforce IaC and CI/CD standards. Core stack: AWS, Terraform/Terragrunt, GitLab, Argo CD, Istio, EKS, with PCI DSS compliance.
Senior Software Engineer - Commercial platform
Senior full-stack engineer on The Irish Times' Digital Products team, building and modernising the commercial platforms behind subscriptions, paywall, advertising operations and audience analytics. Day-to-day spans React frontends, Node.js/TypeScript and PHP/Drupal backends, AWS serverless services, and integrations with tools like Salesforce, Stripe, Piano and GA4.