Senior Backend Software Engineer
$65 - $70 per hourAddison Group
Job Title: Senior Backend Software Engineer Location: Remote Employment Type: Contract Pay Rate : $65 - $70/ hour Benefits: This position is eligible for medical, dental, vision, and 401(k). The Role We are seeking a Senior Software Engineer to play a pivotal role in transforming a core financial product. Key Responsibilities Lead the development, testing, and delivery of reliable backend services Help define and evolve the system architecture in a service-oriented environment Translate complex business requirements into scalable technical solutions Deliver high-availability, high-scalability services in a cloud-native environment Mentor peers and foster a strong engineering culture Drive innovation through new ideas and continuous improvements Work closely with product and design teams throughout the product lifecycle Support production systems and participate in the on‑call rotation Preferred Background & Experience Bachelor’s degree in Computer Science or related field 4+ years of backend development experience with modern tech stacks 2+ years of hands‑on experience with Java, Kotlin, or Scala Solid understanding of relational databases (e.g., PostgreSQL) and ORM tools Experience with microservices or service‑oriented architecture (SOA) Comfortable working in Kubernetes‑based infrastructure environments Strong sense of ownership and ability to work end‑to‑end from concept to production Familiarity with collaborative development practices like code reviews and CI/CD pipelines Nice to Have Interest in personal finance or experience with consumer financial products Familiarity with distributed systems technologies such as Kafka and Docker Exposure to full‑stack development (React, TypeScript, or similar) Prior experience in fintech, digital banking, or financial services Addison Group is an Equal Opportunity Employer. Addison Group provides equal employment opportunities (EEO) to all employees and applicants without regard to race, color, religion, gender, sexual orientation, national origin, age, disability, genetic information, marital status, amnesty, or status as a covered veteran, in accordance with applicable federal, state, and local laws. Reasonable accommodation is available for qualified individuals with disabilities upon request. #J-18808-Ljbffr
- ...-Q-Tel. Role Summary You'll build the backend systems that power Twenty's cyber and electromagnetic capabilities-software that ingests real-time operational signals,... ...product features. Collaborate with frontend engineers on API contracts and data structures that...SeniorFull timeWork at officeFlexible hours
- DLA Piper is seeking a Sr. Aderant Engineer to administer, customize, integrate, and deploy Aderant Expert across the firm’s financial... ...management operations. You will own data integrity, governance, and the backend architecture that supports billing, timekeeping, rate...Senior
$145k - $190k
A leading technology firm in Virginia is seeking a Backend Support Software Developer for an onsite role supporting the National Geospatial-Intelligence Agency (NGA). The ideal candidate will have expertise in Python, C#, and/or Java, with responsibilities including troubleshooting...Senior- Leidos is seeking a TS/SCI cleared Senior Systems Engineer for a mission-focused role in Bethesda, Maryland. You will design, develop, and deploy software for the DIA‑NMEC DOMEX Technology Platform. The position emphasizes collaboration and innovation within a dynamic team...Senior
- Mapbox is seeking an experienced engineer for the Search Data team to build scalable backend systems and data pipelines. You will work with terabytes of telemetry and geospatial data, ingesting it via batch and streaming systems on AWS, and collaborating with cross‑team...Senior
$137k - $200.2k
MAXAR TECHNOLOGIES, INC. is seeking an experienced API/Java/Python Developer to join its team in Washington, DC. The role focuses on developing high-performance, API-driven services, ensuring secure coding practices, and collaborating with multidisciplinary teams to implement...Senior- IntraFi LLC in Arlington, Virginia is seeking a Database Engineer to lead SQL installations, manage databases, and drive innovation in financial services. Ideal candidates have extensive experience in PL/SQL and AWS, along with a solid understanding of ETL processes. This...SeniorFlexible hours
- IntraFi in Arlington, VA is seeking an experienced database administrator to lead SQL installation, configuration, and management of production databases. The ideal candidate will have extensive knowledge in PL/SQL and cloud technologies like AWS, along with experience ...Senior
- A leading staffing agency is seeking a Senior Backend Software Engineer to play a pivotal role in transforming a core financial product. This remote contract position requires expertise in Java, Kotlin, or Scala and the ability to deliver high-availability services in...SeniorRemote jobContract work
- TechDigital Group is seeking a Senior .Net backed Developer with expertise in Microservices and data-driven applications. The role requires strong proficiency in Microsoft Azure, Kubernetes, and Docker, along with experience in scalable cloud-native solutions. Candidates...Senior
- ...amount of experience deploying to cloud platforms (Kubernetes, PCF, GCP, Azure, AWS, etc.). Some amount of experience with TDD, both backend and frontend. Good communication skills, both written and verbal. The ability to mentor new resources. The ability to...Senior
- ...Join Our Team as a Senior Full Stack Developer About Us Harmonia Holdings Group, LLC, an esteemed minority and female owned federal government contractor, is dedicated to delivering cutting‑edge, high‑performance solutions to our government clients. We prioritize cultivating...SeniorFor contractors
- ...Job Title: Full Stack Senior Developer Work Location & Reporting Address: Philadelphia, PA; or Mount Laurel, NJ; or Charlotte, NC... ...applications. • Develop and integrate web applications with backend microservices. • Implement event-driven architectures using...SeniorContract workImmediate startShift work
$240k - $280k
...Senior Fullstack Developer / Fixed Income Technology District Partners... ...this year and wants engineers who are excited to grow with... ...ll Be Owning Production-grade software across the firm's internal investment... ...and operational systems Backend services and business-facing...SeniorFull timeRemote work- Join to apply for the Backend Software Engineer (Remote) role at Jobright.ai Join to apply for the Backend Software Engineer (Remote) role at Jobright... ...to changing the rules for data privacy. They are seeking a Senior Backend Software Engineer to contribute to their Go-based...Remote jobFull time
- ...Senior Full Stack Developer Location: Northern Virginia or Baltimore, MD Seeking... ...Full stack development across the backend, client side and UI Engage with Architects... ...Qualification: ~ Bachelor's degree in Science, Engineering or equivalent ~8+ years of experience...Senior
$145k - $190k
Overview We are seeking a Backend Support Software Developer for a fully onsite role with high visibility, working in direct support of the National Geospatial-Intelligence Agency (NGA). The position focuses on enhancing existing code, integrating backend solutions, and...- ...insurance Paid time off Vision insurance Role Senior Full Stack Developer Location Washington... ...interfaces, developing high‑performance backend services, automating metadata and... ...with data governance, architecture, and engineering teams, this developer will play a critical...Senior
- ...ship new functionality for user interaction and scientific data backend, using modern APIs and frameworks Build highly efficient... ...skills and experience BS in Computer Science or scientific field (engineering, physics), or equivalent experience 5+ years of full‑stack web...SeniorFull timeWork experience placementWork at officeRemote work
- ...Technologies company, is seeking a motivated and technically capable Software Developer to support the design, development, implementation,... ...’s degree in Computer Science, Information Systems, Software Engineering, or a related technical discipline (or equivalent combination...Senior
- District Partners is seeking a Senior Fullstack Developer to join their team focused on building... ...allows you to directly influence software solutions that impact trading and operations... ...candidates are experienced in developing backend systems primarily in Java, have a solid...Senior
- ...highly skilled and experienced Senior Full Stack Developer with a... ...small, feature-focused teams to engineer solutions, mentor team... ...equivalent experience in industry as Software Engineer. Experience:... ...proficiency with the Express.js backend framework and related...SeniorFull timeFor contractorsWork at officeLocal areaImmediate startRemote workRelocation
$130k - $170k
...We are seeking a Senior Full-Stack Developer with a strong background in building and architecting complex, data-driven systems. In... ...k per year Bachelor’s or Master’s degree in Computer Science, Engineering, or a related field. 7+ years of experience building and maintaining...SeniorFull timeCasual work- ...Senior Full Stack Developer Anywhere Type: Contract Category... ...development across frontend, backend, cloud, and platform... ..., business stakeholders, and engineering leadership to prioritize and... ...Requirements: ~8+ years of relevant software engineering experience....SeniorHourly payContract workLocal areaRemote work
- ...Overview: Position Title * Sr. Backend Java Developer Position Responsibilities Role: Senior Backend Java Developer Location: McLean, VA - Onsite (5 days/week) | Local candidates only Key Responsibilities Design, build, and maintain backend services...SeniorLocal area
- ...Senior Full Stack Developer Location Washington, DC # of openings 3 Salary Range... ...NuAxis is home to thinkers and feelers, engineers and artists. We work hard and support... ...deliver end-to-end solutions across the full software development lifecycle. The ideal...SeniorRemote work
- ...Senior DevOps Engineer We are seeking a Senior DevOps Engineer to support the modernization of Data Systems with a primary focus on DevSecOps... ...DC, Expression provides data fusion, data analytics, software engineering, information technology, and electromagnetic spectrum...SeniorFor contractorsWork at officeImmediate start
- ...large organizations. Our capabilities include supplying federal government entities and private businesses with software development, scientific and engineering technical assistance, systems integration, and enterprise security. Since its founding in 1996, OST has been...SeniorContract workImmediate startRelocation package
- ...Columbia, United States Position Title: Senior Full Stack Developer AsaSr.Azure Full Stack... ...youwillparticipatein all phases of the software lifecycle with an emphasis on... ...implement environments for applications, engineer suitable release managementproceduresand...SeniorInterim roleLive inLocal area
- ...Senior Java Backend Developer Location: McLean, VA (Onsite – In-Person Interview Required) Duration: Contract (July 20, 2026 – December 31, 2026) Position Type: Contract (C2C) Work Authorization: Open to sponsored candidates through one-layer-deep sub-vendors only....SeniorContract work
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