Senior Full-Stack Software Engineer
Actifai
Senior Full-Stack Software Engineer
Actifai is seeking experienced senior full-stack software engineers.
Actifai is an artificial intelligence company. We help our customers, broadband and telecom providers, optimize their high-value, high-leverage decisions. Typically, this includes things like customer acquisition, retention, and development (upsells/cross-sells).
Actifai is part of Foundry.ai, a technology fund/studio that creates AI software companies in partnership with large global enterprises. Foundry's operating companies focus on practical applications of AI that drive immediate, measurable, and recurring improvements to financial performance. Foundry is backed by approximately $100MM in capital from leading private equity and venture capital partners.
The Position
The Senior Full-Stack Software Engineer will participate as a key team member in envisioning, designing, coding, testing and improving the products that are central to our mission as a company. They will work in continual collaboration with data scientists and partner company stakeholders.
The Senior Full-Stack Software Engineer will wear many hats. Some key challenges will include: working with a modern tech stack built on GCP with Node.js, Typescript, Terraform, Docker, PostgreSQL and Python; building new back-end and front-end features, working with UX designers to create delightful and highly-performant products; instilling best practices into the development process, including automated testing, code organization and style, and application architecture within an agile environment; evaluating potential new technologies; writing code that builds new companies and products.
Successful candidates will likely have many of the following characteristics:
- A full-stack generalist with 4+ years experience building applications
- Proven ability in writing clean, scalable code with significant experience in one or more programming languages
- Solid knowledge of programming fundamentals - algorithms, data structures, design patterns, and paradigms
- Excited to move fast and know how to prioritize and make critical decisions
- Comfortable with and curious about working outside of a traditional narrow engineering role
- Can effectively communicate software engineering issues to business professionals, and business issues to software engineers
- Proven capability in creating a successful software product; owning/implementing key decisions on features, architecture, scaling, and profitability — particularly in AI or solving a novel problem
- Experience planning and executing work modules that span several months
- Broad skillset that blurs the lines between software engineering and data science
- Exceptional computational background (e.g, significant contribution to libraries/modules and/or has a relevant PhD)
- Exceptional business background (e.g., managing client relationships and scoping projects while leading an engineering team)
Candidates should hold a very strong CS, math, physics or similar degree from a leading program. PhD applicants are actively considered. Successful candidates will be comfortable in a fluid, entrepreneurial environment, but one that is focused on developing reusable software applications, not bespoke analytical solutions.
The programming languages and tools used most frequently at Actifai are: Javascript, SQL, Python, Github, AWS, GCP, Docker, Terraform, Kubernetes, and shell scripts. We do not expect candidates to be experts in all of these, although a strong proficiency in Javascript and the ability to learn new languages as needed are common.
Actifai offers an extremely competitive compensation package, including equity, employer-covered health/vision/dental insurance (with an optional FSA), and 401k matching. Employees receive a generous PTO allowance, and can work both remotely and from our office in downtown Washington, D.C. Successful candidates will join a small team of ambitious, supportive co-workers with ample opportunities to take on responsibilities beyond their assigned role.
Finally, we highlight that excellence has no single mold, particularly in a field as rapidly evolving as AI. We're looking for excellent candidates of all backgrounds with strong business intuition and coding skills, and welcome applicants regardless of ethnic/national origin, gender, race, religious beliefs, disability, sexual orientation or age.
Actifai interviews share some common features with other technical hiring processes and have some important differences. These reflect the unique roles our employees play, which often involve early-stage development of products and environments where idea generation, product-market fit, and partner interaction may be significant aspects of their jobs.
All our roles have technical interviews that test core engineering competencies, ability to discuss technical work, formalize generic problems into a quantitative system, problem-solve, and act as part of a team.
We also ask case-study interview questions, which are less common for technical roles. Case studies are open-ended business problems that do not have set correct answers. They require the interviewee to consider the provided information, decide what is most important, and then build a structure to answer the key questions in discussion with the interviewer. We've incorporated these into our process because Actifai is, similarly, working on problems that haven't been solved before without single correct answers. These challenges require business acumen, problem-solving skills, and the ability to think on your feet and prioritize information and actions.
Our staff will often describe this unique mindset as not only wanting to write the code to solve a problem but also being able to define the problem that we are solving — and our interview process is designed to help employees showcase their skills in this vein.
$131k - $145k
Responsibilities Technica Corporation is seeking a Senior Full Stack Software Engineer who will support the development of the FBI FDP system using a Postgres/Java/React technology stack. These engineers will work with an existing development team to deliver features...SeniorWork experience placementRemote work$112k - $179k
ResponsibilitiesPeraton is seeking a Full‑Stack Engineer to join our Federal Strategic Cyber program—an environment where your engineering expertise... ...Requirements Are:Bachelor's degree and 8+ years of software engineering experience (or 12+ years without a degree).Strong...SeniorContract workCasual workShift work$121k - $206k
...ll join a team of experienced engineers working on systems that matter... ...and clientsOur core technology stack includes:C# / .... ..., build, and deliver scalable software solutions across applications,... ...law.SummaryLocation: Baltimore, MD; Washington DCType: Full timeSeniorFull timeLocal areaRemote work3 days per week$119.7k - $199.3k
...Events, Communications, Customer Care, Engineering & Product, Finance, Human Resources,... ...This Role MattersWe are looking for a Senior Full Stack Engineer to join the Subscriptions team... ...the team builds, deploys, and operates software.The ideal candidate brings deep...SeniorFull timePart time$112.8k - $257k
Full Stack Software Engineer, SeniorThe Opportunity: As a lead software engineer, you can resolve a problem with a complete end-to-end solution in a fast, agile environment. If you’re looking for the chance to not just develop software, but to create a system that will...SeniorFull timeContract workPart timeWork at officeLocal areaRemote work- This is a temporary position. The assignment duration is through September 6, 2027.JOB SUMMARYAs a FLEX Senior Full Stack Software Engineer at Marriott, you will be working on a state of the art React based micro-ui architecture. You will help build the next generation...SeniorFull timeTemporary workRemote workFlexible hours
- ...Vervic Inc. in Washington, D.C. is looking for a Senior Full Stack Developer with over 10 years of experience in Java and expertise in Collibra for data governance tasks. The role includes developing scalable solutions by designing robust APIs and engaging in full-stack...SeniorWork at officeRemote work
- ...Need very senior person 10 plus I would think Says hybrid but I don't think they come on site Java /Python... ...will help support the API Platform implementation. Senior Full-Stack Software Engineer responsible for building web applications using Python,...Senior
$145.92k - $209.24k
...hybrid work model, allowing for remote work two days per week.Travel: Up to 5% Job ID: 1781The Role: We are looking for a Senior Full Stack Software Engineer for Application Engineering. As a Software Engineer on the Applications Engineer team, you'll be part of a cross-...SeniorPermanent employmentContract workWork at officeRemote work2 days per week$125k
...Senior Full Stack Software Engineer NetServices (NSI) is an IT services firm with a long-standing reputation for delivering high-quality, cost-effective solutions to drive lasting results. Now operating as a subsidiary of Synergy ECP, NSI continues to stand out in a...SeniorFlexible hours- ...for defense agencies, coast guards, and commercial maritime operators. Job Description We are looking for a Senior Full Stack Software Engineer to help us build and scale the Quartermaster product—the operator-facing application used by defense analysts, coast...SeniorWork at officeFlexible hours
$95k
...Kadiak, LLC, a Koniag Government Services company , is seeking a Senior Full-Stack Software Engineer with a Top-Secret security clearance to support Kadiak and our government customer in Washington, DC. We offer competitive compensation and an extraordinary benefits...SeniorLocal areaFlexible hours- ...designed for both commercial and government applications. Our engineers and space scientists are on a mission to eliminate the... ...billions who remain unconnected.Position OverviewWe are seeking a Senior Full Stack AI Application Engineer (Frontend Emphasis) with to design...SeniorWork at officeRemote work
- ...Laravel News is seeking a Full-Stack PHP Developer located in Arlington, VA. In this full-time position, you will build and maintain complex web applications using Laravel and Vue.js, focusing on delivering secure and scalable solutions. The ideal candidate will have...SeniorFull time
- ...commercial and government applications. Our engineers and space scientists are on a mission... ....Position OverviewWe are seeking a Senior Full‑Stack AI Application Engineer with strong... ...experienceExperienceA minimum of 5 years of full‑stack software development experienceAt least 3 years...SeniorWork at officeLocal area
- ...design, build, and deliver end-to-end systems, from databases to APIs and user interfaces, in a classified environment. Seeking a senior developer with deep Python expertise and frontend craftsmanship. Expect strong security practices, RBAC auth, and DevSecOps in a regulated...Senior
$111.5k - $207.5k
...Senior Specialist, Full Stack Engineer L3Harris is dedicated to recruiting and developing high-performing talent who are passionate about what they... ...seeking a highly motivated and experienced Full-Stack Software Engineer with deep expertise across a range of technologies...SeniorLocal areaFlexible hours- ...React, Python, PostgreSQL, or Google Cloud experience is helpful. Ability and desire to develop features end to end across the full stack while incorporating customer feedback. Strong product judgment and ability to turn ambiguous problems into shipped solutions....SeniorFull timeWork at officeWeekend work
- A technology consulting firm is seeking an experienced Full Stack Software Developer to support a government client. This role involves developing, testing, and maintaining software components, with a focus on Agile methodologies. Candidates should have over 10 years of...Senior
- Enterprise Knowledge (EK) is hiring a full-time Senior Full Stack Developer to join our Enterprise Delivery team. You will bridge software engineering with Generative AI, leading end-to-end design, implementation, and deployment for AI-driven solutions. You will lead projects...SeniorFull time2 days per week
$190k - $240k
Belay Technologies in Laurel, Maryland is looking for a Senior Software Engineer (SWE3) with extensive experience in full-stack development and strong technical qualifications. Applicants must have TS/SCI clearance and 20 years of relevant experience. This role offers a...Senior$170k - $230k
...security clearance is REQUIRED. Please do not apply if you currently do not possess this level of clearance.*** Are you a Senior Full Stack Software Engineer who is ready for a new challenge that will launch your career to the next level? Tired of being treated like a...SeniorFull timeContract workRemote workWork from homeRelocation package$110k - $190k
...Fortegra is building a next-generation engineering capability focused on AI-accelerated development... ...application delivery. We are seeking Full Stack Engineers who thrive in fast-moving... ...to transform ideas into working software. Develop prototypes that evolve into...SeniorWork visa- Applied Information Sciences (AIS) is seeking a Senior .NET & React Full Stack Developer to join our team for a mission‑critical federal client in... ..., and contribute to cloud‑aware solutions. As a senior engineer, you will lead design decisions, review code, mentor teammates...Senior
- North Davis Project Illumination is seeking a senior software engineer to design, implement, and scale the platform's core backend systems and data pipelines. You will lead end-to-end development for critical features, ensuring quality, performance, and scalability, and...SeniorRemote job
- Brivo is seeking a Senior Full-Stack Software Engineer in Bethesda for a hybrid role, requiring on-site presence 2-3 days per week. You will architect, develop, and maintain high-availability services powering a global security platform. You’ll work on API services with...Senior2 days per week3 days per week
$125k - $150k
...automation, and enterprise application engineering solutions. Position Summary Artic Consulting is seeking a Senior Consultant, Microsoft Full Stack & AI Engineering to design, build,... ..., product, or client-facing software environments. Strong hands-on experience...SeniorFull timeFlexible hours$95.55k - $195.25k
...role ends on May 31, 2027. What You’ll Do As a Deloitte Tax Full Stack Engineer, Senior you’ll design, develop, and deploy cutting-edge web... ...Collaborate with US colleagues and Vendors’ teams to produce software design and architecture.Write clean, scalable code using ....SeniorWork at officeLocal areaVisa sponsorshipShift work2 days per week3 days per week- ...NetServices (NSI) is seeking a Senior Full Stack Developer to design, develop, test, and manage application development projects in support... ...of lead architects. The ideal candidate has extensive software development experience, strong analytical skills, and a TS/SCI...Senior
- ...International Executive Service Corps seeks a talented Senior Full Stack Developer for a remote federal program opportunity. This role involves... ...across teams to deliver solutions throughout the software development lifecycle and must possess a Bachelor’s degree along...SeniorRemote work
Do you want to receive more vacancies?
Subscribe and receive similar vacancies to Senior Full-Stack Software Engineer. Be the first to apply!
- remote .net full stack web developer Washington DC
- full stack developer contract Washington DC
- full time engineer Washington DC
- senior full stack developer Washington DC
- mid level full stack developer Washington DC
- full stack java developer Washington DC
- full stack developer Washington DC
- senior java full-stack developer Washington DC
- java full stack angular developer Washington DC
- full stack / python developer (remote) Washington DC


